/export/starexec/sandbox/solver/bin/starexec_run_default /export/starexec/sandbox/benchmark/theBenchmark.c /export/starexec/sandbox/output/output_files -------------------------------------------------------------------------------- YES Ultimate: Cannot open display: This is Ultimate 0.1.25-34f2e62 [2020-07-01 11:17:51,666 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 11:17:51,668 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 11:17:51,680 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 11:17:51,680 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 11:17:51,681 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 11:17:51,682 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 11:17:51,684 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 11:17:51,685 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 11:17:51,686 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 11:17:51,687 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 11:17:51,688 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 11:17:51,688 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 11:17:51,689 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 11:17:51,690 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 11:17:51,691 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 11:17:51,692 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 11:17:51,693 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 11:17:51,694 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 11:17:51,696 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 11:17:51,697 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 11:17:51,698 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 11:17:51,699 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 11:17:51,700 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 11:17:51,702 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 11:17:51,703 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 11:17:51,703 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 11:17:51,704 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 11:17:51,704 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 11:17:51,705 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 11:17:51,705 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 11:17:51,706 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 11:17:51,707 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 11:17:51,707 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 11:17:51,708 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 11:17:51,708 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 11:17:51,709 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 11:17:51,709 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 11:17:51,709 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 11:17:51,710 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 11:17:51,711 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 11:17:51,712 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-07-01 11:17:51,726 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 11:17:51,726 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 11:17:51,727 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 11:17:51,727 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 11:17:51,728 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 11:17:51,728 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 11:17:51,728 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 11:17:51,728 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 11:17:51,728 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 11:17:51,729 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 11:17:51,729 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 11:17:51,729 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 11:17:51,729 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 11:17:51,729 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 11:17:51,729 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:17:51,730 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 11:17:51,730 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 11:17:51,730 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 11:17:51,730 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 11:17:51,730 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 11:17:51,730 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 11:17:51,731 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 11:17:51,731 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 11:17:51,731 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 11:17:51,731 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 11:17:51,731 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 11:17:51,732 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 11:17:51,732 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 11:17:51,732 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 11:17:51,900 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 11:17:51,913 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 11:17:51,917 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 11:17:51,918 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 11:17:51,918 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 11:17:51,919 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 11:17:51,983 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_ubPsrY/tmp/6a2f94b734e0459ca397359b26a723fe/FLAG595668caf [2020-07-01 11:17:52,336 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 11:17:52,337 INFO L160 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 11:17:52,344 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_ubPsrY/tmp/6a2f94b734e0459ca397359b26a723fe/FLAG595668caf [2020-07-01 11:17:52,757 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/BenchExec_run_ubPsrY/tmp/6a2f94b734e0459ca397359b26a723fe [2020-07-01 11:17:52,769 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 11:17:52,770 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 11:17:52,771 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 11:17:52,771 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 11:17:52,775 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 11:17:52,776 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 11:17:52" (1/1) ... [2020-07-01 11:17:52,779 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@791d7377 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:17:52, skipping insertion in model container [2020-07-01 11:17:52,779 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 11:17:52" (1/1) ... [2020-07-01 11:17:52,787 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 11:17:52,804 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 11:17:53,019 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 11:17:53,024 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 11:17:53,039 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 11:17:53,053 INFO L208 MainTranslator]: Completed translation [2020-07-01 11:17:53,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:17:53 WrapperNode [2020-07-01 11:17:53,054 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 11:17:53,055 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 11:17:53,055 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 11:17:53,055 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 11:17:53,064 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:17:53" (1/1) ... [2020-07-01 11:17:53,069 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:17:53" (1/1) ... [2020-07-01 11:17:53,087 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 11:17:53,088 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 11:17:53,088 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 11:17:53,088 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 11:17:53,097 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:17:53" (1/1) ... [2020-07-01 11:17:53,098 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:17:53" (1/1) ... [2020-07-01 11:17:53,098 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:17:53" (1/1) ... [2020-07-01 11:17:53,098 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:17:53" (1/1) ... [2020-07-01 11:17:53,100 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:17:53" (1/1) ... [2020-07-01 11:17:53,105 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:17:53" (1/1) ... [2020-07-01 11:17:53,105 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:17:53" (1/1) ... [2020-07-01 11:17:53,107 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 11:17:53,107 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 11:17:53,107 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 11:17:53,107 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 11:17:53,108 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:17:53" (1/1) ... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 11:17:53,177 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 11:17:53,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 11:17:53,321 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 11:17:53,322 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-01 11:17:53,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:17:53 BoogieIcfgContainer [2020-07-01 11:17:53,325 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 11:17:53,326 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 11:17:53,326 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 11:17:53,328 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 11:17:53,329 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:17:53" (1/1) ... [2020-07-01 11:17:53,342 INFO L313 BlockEncoder]: Initial Icfg 7 locations, 9 edges [2020-07-01 11:17:53,343 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 11:17:53,344 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 11:17:53,345 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 11:17:53,345 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 11:17:53,347 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 11:17:53,347 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 11:17:53,348 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 11:17:53,361 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 11:17:53,376 INFO L200 BlockEncoder]: SBE split 2 edges [2020-07-01 11:17:53,381 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-07-01 11:17:53,382 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:17:53,392 INFO L100 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2020-07-01 11:17:53,394 INFO L70 RemoveSinkStates]: Removed 3 edges and 2 locations by removing sink states [2020-07-01 11:17:53,395 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 11:17:53,396 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:17:53,396 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 11:17:53,396 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 11:17:53,396 INFO L313 BlockEncoder]: Encoded RCFG 3 locations, 5 edges [2020-07-01 11:17:53,397 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:17:53 BasicIcfg [2020-07-01 11:17:53,397 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 11:17:53,398 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 11:17:53,398 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 11:17:53,402 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 11:17:53,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 11:17:52" (1/4) ... [2020-07-01 11:17:53,403 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@552c8d27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:17:53, skipping insertion in model container [2020-07-01 11:17:53,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:17:53" (2/4) ... [2020-07-01 11:17:53,403 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@552c8d27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:17:53, skipping insertion in model container [2020-07-01 11:17:53,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:17:53" (3/4) ... [2020-07-01 11:17:53,404 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@552c8d27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:17:53, skipping insertion in model container [2020-07-01 11:17:53,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:17:53" (4/4) ... [2020-07-01 11:17:53,406 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 11:17:53,416 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 11:17:53,424 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 11:17:53,438 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 11:17:53,460 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 11:17:53,461 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 11:17:53,461 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 11:17:53,461 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 11:17:53,461 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 11:17:53,461 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 11:17:53,461 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 11:17:53,462 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 11:17:53,475 INFO L276 IsEmpty]: Start isEmpty. Operand 3 states. [2020-07-01 11:17:53,481 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 11:17:53,484 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. [2020-07-01 11:17:53,535 INFO L271 CegarLoopResult]: At program point L18-2(lines 17 25) the Hoare annotation is: true [2020-07-01 11:17:53,535 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 11:17:53,535 INFO L268 CegarLoopResult]: For program point L18(lines 18 24) no Hoare annotation was computed. [2020-07-01 11:17:53,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:17:53 BasicIcfg [2020-07-01 11:17:53,544 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 11:17:53,545 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 11:17:53,545 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 11:17:53,548 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 11:17:53,549 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:17:53,549 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 11:17:52" (1/5) ... [2020-07-01 11:17:53,550 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@715856a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 11:17:53, skipping insertion in model container [2020-07-01 11:17:53,550 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:17:53,551 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:17:53" (2/5) ... [2020-07-01 11:17:53,551 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@715856a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 11:17:53, skipping insertion in model container [2020-07-01 11:17:53,551 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:17:53,551 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:17:53" (3/5) ... [2020-07-01 11:17:53,552 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@715856a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:17:53, skipping insertion in model container [2020-07-01 11:17:53,552 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:17:53,552 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:17:53" (4/5) ... [2020-07-01 11:17:53,552 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@715856a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:17:53, skipping insertion in model container [2020-07-01 11:17:53,553 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:17:53,553 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:17:53" (5/5) ... [2020-07-01 11:17:53,554 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 11:17:53,583 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 11:17:53,583 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 11:17:53,583 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 11:17:53,584 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 11:17:53,585 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 11:17:53,585 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 11:17:53,585 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 11:17:53,586 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 11:17:53,589 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-07-01 11:17:53,606 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 11:17:53,606 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:17:53,607 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:17:53,613 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 11:17:53,613 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 11:17:53,614 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 11:17:53,614 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-07-01 11:17:53,614 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 11:17:53,614 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:17:53,615 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:17:53,615 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 11:17:53,615 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 11:17:53,620 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [26] ULTIMATE.startENTRY-->L18-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~tx~0_1 |v_ULTIMATE.start_main_#t~nondet3_4|) (= v_ULTIMATE.start_main_~z~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_1|, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~tx~0=v_ULTIMATE.start_main_~tx~0_1, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet3_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~tx~0, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 4#L18-2true [2020-07-01 11:17:53,621 INFO L796 eck$LassoCheckResult]: Loop: 4#L18-2true [29] L18-2-->L18: Formula: (and (<= v_ULTIMATE.start_main_~x~0_5 (+ v_ULTIMATE.start_main_~z~0_5 v_ULTIMATE.start_main_~tx~0_5)) (<= v_ULTIMATE.start_main_~y~0_5 v_ULTIMATE.start_main_~x~0_5)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5, ULTIMATE.start_main_~tx~0=v_ULTIMATE.start_main_~tx~0_5, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5, ULTIMATE.start_main_~tx~0=v_ULTIMATE.start_main_~tx~0_5, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} AuxVars[] AssignedVars[] 5#L18true [37] L18-->L18-2: Formula: (and (= v_ULTIMATE.start_main_~z~0_6 (+ v_ULTIMATE.start_main_~z~0_7 (- 1))) (= v_ULTIMATE.start_main_~tx~0_6 v_ULTIMATE.start_main_~x~0_7) (= v_ULTIMATE.start_main_~x~0_6 |v_ULTIMATE.start_main_#t~nondet5_3|) (> 0 |v_ULTIMATE.start_main_#t~nondet4_3|)) InVars {ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_7, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_3|, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_3|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~tx~0=v_ULTIMATE.start_main_~tx~0_6, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_6, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_2|, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_~tx~0, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 4#L18-2true [2020-07-01 11:17:53,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:17:53,627 INFO L82 PathProgramCache]: Analyzing trace with hash 57, now seen corresponding path program 1 times [2020-07-01 11:17:53,636 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:17:53,637 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879881476] [2020-07-01 11:17:53,637 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:17:53,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:17:53,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:17:53,706 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:17:53,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:17:53,707 INFO L82 PathProgramCache]: Analyzing trace with hash 1897, now seen corresponding path program 1 times [2020-07-01 11:17:53,707 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:17:53,708 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149444433] [2020-07-01 11:17:53,708 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:17:53,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:17:53,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:17:53,731 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:17:53,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:17:53,733 INFO L82 PathProgramCache]: Analyzing trace with hash 55713, now seen corresponding path program 1 times [2020-07-01 11:17:53,733 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:17:53,734 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302272328] [2020-07-01 11:17:53,734 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:17:53,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:17:53,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:17:53,749 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:17:53,812 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:17:53,813 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:17:53,813 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:17:53,813 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:17:53,813 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:17:53,814 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:17:53,814 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:17:53,814 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:17:53,814 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 11:17:53,814 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:17:53,815 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:17:53,833 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 11:17:53,860 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:17:53,944 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:17:53,944 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:17:53,951 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:17:53,951 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:17:53,992 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:17:53,992 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:17:58,593 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:17:58,597 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:17:58,598 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:17:58,598 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:17:58,598 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:17:58,598 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:17:58,598 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:17:58,598 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:17:58,598 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:17:58,599 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 11:17:58,599 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:17:58,599 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:17:58,601 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:17:58,617 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 11:17:58,665 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:17:58,671 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 4 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 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:17:58,675 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:17:58,678 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:17:58,678 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:17:58,679 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:17:58,679 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:17:58,679 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:17:58,683 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:17:58,683 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:17:58,689 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 5 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 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:17:58,721 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:17:58,723 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:17:58,723 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:17:58,723 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:17:58,723 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:17:58,723 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:17:58,724 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:17:58,724 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:17:58,729 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-07-01 11:17:58,759 INFO L489 LassoAnalysis]: Using template '2-nested'. No working directory specified, using /export/starexec/sandbox/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 11:17:58,763 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:17:58,766 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:17:58,766 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:17:58,767 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:17:58,767 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:17:58,767 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-07-01 11:17:58,771 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-07-01 11:17:58,771 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:17:58,778 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:17:58,799 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-07-01 11:17:58,800 INFO L444 ModelExtractionUtils]: 6 out of 13 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 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 11:17:58,810 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:17:58,810 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:17:58,810 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:17:58,811 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = 2*ULTIMATE.start_main_~z~0 f1 = 2*ULTIMATE.start_main_~z~0 + 2*ULTIMATE.start_main_~tx~0 - 2*ULTIMATE.start_main_~y~0 + 1 Supporting invariants [] [2020-07-01 11:17:58,845 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:18:04,310 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 (* 2 c_ULTIMATE.start_main_~z~0))) (let ((.cse0 (> .cse1 0))) (and (>= c_oldRank1 (ite .cse0 .cse1 (+ .cse1 (* 2 c_ULTIMATE.start_main_~tx~0) (* (- 2) c_ULTIMATE.start_main_~y~0) 1))) (>= c_oldRank0 (ite .cse0 1 0))))) is different from false [2020-07-01 11:18:04,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:18:04,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:18:04,340 INFO L264 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 11:18:04,342 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:18:04,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:18:04,358 WARN L262 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-01 11:18:04,359 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:18:04,381 INFO L477 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-01 11:18:04,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 11:18:15,540 WARN L192 SmtUtils]: Spent 5.44 s on a formula simplification that was a NOOP. DAG size: 15 [2020-07-01 11:18:21,005 INFO L98 LoopCannibalizer]: 9 predicates before loop cannibalization 9 predicates after loop cannibalization [2020-07-01 11:18:21,011 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 9 loop predicates [2020-07-01 11:18:21,012 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 3 states. Second operand 3 states. [2020-07-01 11:18:21,094 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 3 states.. Second operand 3 states. Result 8 states and 17 transitions. Complement of second has 6 states. [2020-07-01 11:18:21,094 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 11:18:21,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 11:18:21,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2020-07-01 11:18:21,098 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 1 letters. Loop has 2 letters. [2020-07-01 11:18:21,100 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:18:21,100 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-07-01 11:18:26,548 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 (* 2 c_ULTIMATE.start_main_~z~0))) (let ((.cse0 (> .cse1 0))) (and (>= c_oldRank1 (ite .cse0 .cse1 (+ .cse1 (* 2 c_ULTIMATE.start_main_~tx~0) (* (- 2) c_ULTIMATE.start_main_~y~0) 1))) (>= c_oldRank0 (ite .cse0 1 0))))) is different from false [2020-07-01 11:18:26,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:18:26,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:18:26,565 INFO L264 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 11:18:26,565 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:18:26,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:18:26,574 WARN L262 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-01 11:18:26,574 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:18:26,577 INFO L477 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-01 11:18:26,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 11:18:26,660 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2020-07-01 11:18:26,660 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 3 states. Second operand 3 states. [2020-07-01 11:18:26,665 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 3 states.. Second operand 3 states. Result 5 states and 9 transitions. Complement of second has 2 states. [2020-07-01 11:18:26,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2020-07-01 11:18:26,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 11:18:26,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 6 transitions. [2020-07-01 11:18:26,666 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 6 transitions. Stem has 1 letters. Loop has 2 letters. [2020-07-01 11:18:26,666 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:18:26,666 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-07-01 11:18:32,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:18:32,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:18:32,140 INFO L264 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 11:18:32,141 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:18:32,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:18:32,150 WARN L262 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-01 11:18:32,150 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:18:32,152 INFO L477 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-01 11:18:32,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 11:18:37,801 WARN L838 $PredicateComparison]: unable to prove that (<= (let ((.cse0 (* 2 c_ULTIMATE.start_main_~z~0))) (ite (> .cse0 0) .cse0 (+ .cse0 (* 2 c_ULTIMATE.start_main_~tx~0) (* (- 2) c_ULTIMATE.start_main_~y~0) 1))) c_oldRank1) is different from false [2020-07-01 11:18:37,839 INFO L98 LoopCannibalizer]: 9 predicates before loop cannibalization 9 predicates after loop cannibalization [2020-07-01 11:18:37,840 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemin loopwithout honda bouncer for stem and without honda bouncer for loop.1 stem predicates 9 loop predicates [2020-07-01 11:18:37,841 INFO L104 BuchiDifferenceFKV]: Start buchiDifferenceFKV. First operand 3 states. Second operand 3 states. [2020-07-01 11:19:10,449 WARN L192 SmtUtils]: Spent 32.54 s on a formula simplification. DAG size of input: 27 DAG size of output: 25 [2020-07-01 11:19:15,872 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 (* 2 c_ULTIMATE.start_main_~z~0))) (let ((.cse0 (> .cse1 0))) (and (<= c_ULTIMATE.start_main_~y~0 c_ULTIMATE.start_main_~x~0) (<= (ite .cse0 .cse1 (+ .cse1 (* 2 c_ULTIMATE.start_main_~tx~0) (* (- 2) c_ULTIMATE.start_main_~y~0) 1)) c_oldRank1) (<= (ite .cse0 1 0) c_oldRank0)))) is different from false [2020-07-01 11:19:16,280 INFO L108 BuchiDifferenceFKV]: Finished buchiDifferenceFKV. First operand 3 states. Second operand 3 states. Result 127 states and 324 transitions. Complement of second has 126 states 9 powerset states117 rank states. The highest rank that occured is 7 [2020-07-01 11:19:16,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 1 stem states 6 non-accepting loop states 2 accepting loop states [2020-07-01 11:19:16,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 11:19:16,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 28 transitions. [2020-07-01 11:19:16,282 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 28 transitions. Stem has 1 letters. Loop has 2 letters. [2020-07-01 11:19:16,282 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:19:16,282 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 28 transitions. Stem has 3 letters. Loop has 2 letters. [2020-07-01 11:19:16,283 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:19:16,283 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 28 transitions. Stem has 1 letters. Loop has 4 letters. [2020-07-01 11:19:16,284 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:19:16,292 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 127 states and 324 transitions. [2020-07-01 11:19:16,302 INFO L131 ngComponentsAnalysis]: Automaton has 18 accepting balls. 36 [2020-07-01 11:19:16,312 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 127 states to 107 states and 267 transitions. [2020-07-01 11:19:16,313 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33 [2020-07-01 11:19:16,314 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 72 [2020-07-01 11:19:16,315 INFO L73 IsDeterministic]: Start isDeterministic. Operand 107 states and 267 transitions. [2020-07-01 11:19:16,315 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:19:16,315 INFO L688 BuchiCegarLoop]: Abstraction has 107 states and 267 transitions. [2020-07-01 11:19:16,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states and 267 transitions. [2020-07-01 11:19:16,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 48. [2020-07-01 11:19:16,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-07-01 11:19:16,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 150 transitions. [2020-07-01 11:19:16,352 INFO L711 BuchiCegarLoop]: Abstraction has 48 states and 150 transitions. [2020-07-01 11:19:16,352 INFO L591 BuchiCegarLoop]: Abstraction has 48 states and 150 transitions. [2020-07-01 11:19:16,352 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-01 11:19:16,352 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 48 states and 150 transitions. [2020-07-01 11:19:16,354 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2020-07-01 11:19:16,354 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:19:16,355 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:19:16,355 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-07-01 11:19:16,355 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 11:19:16,356 INFO L794 eck$LassoCheckResult]: Stem: 361#ULTIMATE.startENTRY [26] ULTIMATE.startENTRY-->L18-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~tx~0_1 |v_ULTIMATE.start_main_#t~nondet3_4|) (= v_ULTIMATE.start_main_~z~0_1 |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_1|, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#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_1, ULTIMATE.start_main_~tx~0=v_ULTIMATE.start_main_~tx~0_1, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_1, 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~nondet3_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~nondet5, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~tx~0, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 362#L18-2 [29] L18-2-->L18: Formula: (and (<= v_ULTIMATE.start_main_~x~0_5 (+ v_ULTIMATE.start_main_~z~0_5 v_ULTIMATE.start_main_~tx~0_5)) (<= v_ULTIMATE.start_main_~y~0_5 v_ULTIMATE.start_main_~x~0_5)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5, ULTIMATE.start_main_~tx~0=v_ULTIMATE.start_main_~tx~0_5, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5, ULTIMATE.start_main_~tx~0=v_ULTIMATE.start_main_~tx~0_5, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} AuxVars[] AssignedVars[] 379#L18 [31] L18-->L18-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_6 (+ v_ULTIMATE.start_main_~y~0_7 1)) (= 0 |v_ULTIMATE.start_main_#t~nondet4_5|)) InVars {ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_5|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7} OutVars{ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_4|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~y~0] 367#L18-2 [2020-07-01 11:19:16,356 INFO L796 eck$LassoCheckResult]: Loop: 367#L18-2 [29] L18-2-->L18: Formula: (and (<= v_ULTIMATE.start_main_~x~0_5 (+ v_ULTIMATE.start_main_~z~0_5 v_ULTIMATE.start_main_~tx~0_5)) (<= v_ULTIMATE.start_main_~y~0_5 v_ULTIMATE.start_main_~x~0_5)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5, ULTIMATE.start_main_~tx~0=v_ULTIMATE.start_main_~tx~0_5, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5, ULTIMATE.start_main_~tx~0=v_ULTIMATE.start_main_~tx~0_5, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} AuxVars[] AssignedVars[] 366#L18 [31] L18-->L18-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_6 (+ v_ULTIMATE.start_main_~y~0_7 1)) (= 0 |v_ULTIMATE.start_main_#t~nondet4_5|)) InVars {ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_5|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7} OutVars{ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_4|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~y~0] 367#L18-2 [2020-07-01 11:19:16,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:19:16,357 INFO L82 PathProgramCache]: Analyzing trace with hash 55707, now seen corresponding path program 1 times [2020-07-01 11:19:16,357 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:19:16,357 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891614729] [2020-07-01 11:19:16,357 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:19:16,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:19:16,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:19:16,369 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:19:16,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:19:16,370 INFO L82 PathProgramCache]: Analyzing trace with hash 1891, now seen corresponding path program 1 times [2020-07-01 11:19:16,370 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:19:16,370 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629713965] [2020-07-01 11:19:16,370 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:19:16,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:19:16,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:19:16,377 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:19:16,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:19:16,378 INFO L82 PathProgramCache]: Analyzing trace with hash 53535357, now seen corresponding path program 2 times [2020-07-01 11:19:16,378 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:19:16,378 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697680378] [2020-07-01 11:19:16,379 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:19:16,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:19:16,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:19:16,391 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:19:16,420 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:19:16,420 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:19:16,420 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:19:16,420 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:19:16,420 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:19:16,421 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:19:16,421 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:19:16,421 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:19:16,421 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 11:19:16,421 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:19:16,421 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:19:16,422 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:19:16,426 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:19:16,460 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:19:16,460 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:19:16,464 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:19:16,464 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:19:16,469 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:19:16,470 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet4=0} Honda state: {ULTIMATE.start_main_#t~nondet4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:19:16,501 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:19:16,502 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:19:16,537 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:19:16,537 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:19:16,864 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:19:16,867 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:19:16,867 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:19:16,867 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:19:16,867 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:19:16,867 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:19:16,867 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:19:16,868 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:19:16,868 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:19:16,868 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 11:19:16,868 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:19:16,868 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:19:16,869 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:19:16,873 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:19:16,912 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:19:16,913 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:19:16,915 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:19:16,917 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:19:16,917 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:19:16,918 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:19:16,918 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:19:16,918 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:19:16,919 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:19:16,919 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:19:16,921 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:19:16,955 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:19:16,957 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:19:16,957 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:19:16,957 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:19:16,958 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:19:16,958 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:19:16,959 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:19:16,959 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:19:16,963 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:19:16,966 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 11:19:16,967 INFO L444 ModelExtractionUtils]: 2 out of 6 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:19:16,969 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:19:16,970 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:19:16,970 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:19:16,970 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~y~0) = 2*ULTIMATE.start_main_~x~0 - 2*ULTIMATE.start_main_~y~0 + 1 Supporting invariants [] [2020-07-01 11:19:17,001 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:19:17,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:19:17,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:19:17,025 INFO L264 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 11:19:17,025 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:19:17,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:19:17,031 WARN L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 11:19:17,031 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:19:17,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 11:19:17,068 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-07-01 11:19:17,068 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-07-01 11:19:17,068 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 48 states and 150 transitions. cyclomatic complexity: 114 Second operand 3 states. [2020-07-01 11:19:17,114 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 48 states and 150 transitions. cyclomatic complexity: 114. Second operand 3 states. Result 95 states and 279 transitions. Complement of second has 4 states. [2020-07-01 11:19:17,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-07-01 11:19:17,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 11:19:17,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2020-07-01 11:19:17,118 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 3 letters. Loop has 2 letters. [2020-07-01 11:19:17,118 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:19:17,118 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 5 letters. Loop has 2 letters. [2020-07-01 11:19:17,119 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:19:17,119 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 3 letters. Loop has 4 letters. [2020-07-01 11:19:17,119 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:19:17,120 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 95 states and 279 transitions. [2020-07-01 11:19:17,124 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 11:19:17,124 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 95 states to 0 states and 0 transitions. [2020-07-01 11:19:17,125 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-01 11:19:17,125 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-01 11:19:17,125 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-01 11:19:17,125 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 11:19:17,125 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:19:17,125 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:19:17,125 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:19:17,125 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2020-07-01 11:19:17,126 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-01 11:19:17,126 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 11:19:17,126 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-01 11:19:17,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:19:17 BasicIcfg [2020-07-01 11:19:17,132 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 11:19:17,134 INFO L168 Benchmark]: Toolchain (without parser) took 84364.09 ms. Allocated memory was 649.6 MB in the beginning and 749.7 MB in the end (delta: 100.1 MB). Free memory was 561.6 MB in the beginning and 626.4 MB in the end (delta: -64.9 MB). Peak memory consumption was 35.3 MB. Max. memory is 50.3 GB. [2020-07-01 11:19:17,134 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 583.2 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 11:19:17,135 INFO L168 Benchmark]: CACSL2BoogieTranslator took 283.17 ms. Allocated memory was 649.6 MB in the beginning and 690.5 MB in the end (delta: 40.9 MB). Free memory was 561.6 MB in the beginning and 653.9 MB in the end (delta: -92.3 MB). Peak memory consumption was 28.5 MB. Max. memory is 50.3 GB. [2020-07-01 11:19:17,136 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.92 ms. Allocated memory is still 690.5 MB. Free memory was 653.9 MB in the beginning and 652.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-07-01 11:19:17,137 INFO L168 Benchmark]: Boogie Preprocessor took 18.96 ms. Allocated memory is still 690.5 MB. Free memory was 652.5 MB in the beginning and 651.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-07-01 11:19:17,137 INFO L168 Benchmark]: RCFGBuilder took 218.34 ms. Allocated memory is still 690.5 MB. Free memory was 651.2 MB in the beginning and 636.6 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 50.3 GB. [2020-07-01 11:19:17,138 INFO L168 Benchmark]: BlockEncodingV2 took 71.35 ms. Allocated memory is still 690.5 MB. Free memory was 636.6 MB in the beginning and 631.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. [2020-07-01 11:19:17,138 INFO L168 Benchmark]: TraceAbstraction took 145.85 ms. Allocated memory is still 690.5 MB. Free memory was 629.9 MB in the beginning and 621.8 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 50.3 GB. [2020-07-01 11:19:17,139 INFO L168 Benchmark]: BuchiAutomizer took 83587.59 ms. Allocated memory was 690.5 MB in the beginning and 749.7 MB in the end (delta: 59.2 MB). Free memory was 621.8 MB in the beginning and 626.4 MB in the end (delta: -4.6 MB). Peak memory consumption was 54.6 MB. Max. memory is 50.3 GB. [2020-07-01 11:19:17,143 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 3 locations, 5 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 583.2 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 283.17 ms. Allocated memory was 649.6 MB in the beginning and 690.5 MB in the end (delta: 40.9 MB). Free memory was 561.6 MB in the beginning and 653.9 MB in the end (delta: -92.3 MB). Peak memory consumption was 28.5 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 32.92 ms. Allocated memory is still 690.5 MB. Free memory was 653.9 MB in the beginning and 652.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 18.96 ms. Allocated memory is still 690.5 MB. Free memory was 652.5 MB in the beginning and 651.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * RCFGBuilder took 218.34 ms. Allocated memory is still 690.5 MB. Free memory was 651.2 MB in the beginning and 636.6 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 71.35 ms. Allocated memory is still 690.5 MB. Free memory was 636.6 MB in the beginning and 631.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. * TraceAbstraction took 145.85 ms. Allocated memory is still 690.5 MB. Free memory was 629.9 MB in the beginning and 621.8 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 83587.59 ms. Allocated memory was 690.5 MB in the beginning and 749.7 MB in the end (delta: 59.2 MB). Free memory was 621.8 MB in the beginning and 626.4 MB in the end (delta: -4.6 MB). Peak memory consumption was 54.6 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: 17]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 3 locations, 0 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.0s, OverallIterations: 0, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 1 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (0 trivial, 0 deterministic, 2 nondeterministic). One nondeterministic module has 2-nested ranking function (if 2 * z > 0 then 1 else 0), (if 2 * z > 0 then 2 * z else 2 * z + 2 * tx + -2 * y + 1) and consists of 9 locations. One nondeterministic module has affine ranking function 2 * x + -2 * y + 1 and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 83.5s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 5.8s. Construction of modules took 0.1s. Büchi inclusion checks took 77.3s. Highest rank in rank-based complementation 7. Minimization of det autom 1. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 59 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 48 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 13 SDtfs, 29 SDslu, 7 SDs, 0 SdLazy, 110 SolverSat, 31 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital21 mio100 ax100 hnf100 lsp85 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq153 hnf93 smp100 dnf100 smp100 tf108 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 50ms VariablesStem: 0 VariablesLoop: 8 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 3 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 5.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-07-01 11:17:49.514 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox/tmp/BenchExec_run_ubPsrY/tmp -i /export/starexec/sandbox/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 11:19:17.576 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check