YES Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-22 11:31:10,547 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-22 11:31:10,549 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-22 11:31:10,560 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-22 11:31:10,561 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-22 11:31:10,561 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-22 11:31:10,563 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-22 11:31:10,564 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-22 11:31:10,566 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-22 11:31:10,566 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-22 11:31:10,567 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-22 11:31:10,567 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-22 11:31:10,568 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-22 11:31:10,569 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-22 11:31:10,570 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-22 11:31:10,571 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-22 11:31:10,572 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-22 11:31:10,573 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-22 11:31:10,575 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-22 11:31:10,577 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-22 11:31:10,577 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-22 11:31:10,579 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-22 11:31:10,581 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-22 11:31:10,581 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-22 11:31:10,581 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-22 11:31:10,582 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-22 11:31:10,583 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-22 11:31:10,583 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-22 11:31:10,584 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-22 11:31:10,584 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-22 11:31:10,585 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-22 11:31:10,585 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-22 11:31:10,586 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-22 11:31:10,587 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-22 11:31:10,587 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-22 11:31:10,587 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-22 11:31:10,588 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-22 11:31:10,588 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-22 11:31:10,589 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-22 11:31:10,589 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-06-22 11:31:10,603 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-22 11:31:10,604 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-22 11:31:10,605 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-22 11:31:10,605 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-22 11:31:10,605 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-22 11:31:10,605 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-22 11:31:10,605 INFO L133 SettingsManager]: * Use SBE=true [2020-06-22 11:31:10,605 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-22 11:31:10,606 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-22 11:31:10,606 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-22 11:31:10,606 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-22 11:31:10,606 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-22 11:31:10,606 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-22 11:31:10,606 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-22 11:31:10,606 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 11:31:10,607 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-22 11:31:10,607 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-22 11:31:10,607 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-22 11:31:10,607 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-22 11:31:10,607 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-22 11:31:10,607 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-22 11:31:10,608 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-22 11:31:10,608 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-22 11:31:10,608 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-22 11:31:10,608 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 11:31:10,608 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-22 11:31:10,608 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-22 11:31:10,608 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-22 11:31:10,609 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-22 11:31:10,634 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-22 11:31:10,646 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-22 11:31:10,649 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-22 11:31:10,651 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-22 11:31:10,651 INFO L276 PluginConnector]: CDTParser initialized [2020-06-22 11:31:10,652 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 11:31:10,717 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/fe69cc5813ee4ce8a828f69d4d225366/FLAGb32328f17 [2020-06-22 11:31:11,043 INFO L307 CDTParser]: Found 1 translation units. [2020-06-22 11:31:11,044 INFO L161 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 11:31:11,050 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/fe69cc5813ee4ce8a828f69d4d225366/FLAGb32328f17 [2020-06-22 11:31:11,452 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/fe69cc5813ee4ce8a828f69d4d225366 [2020-06-22 11:31:11,463 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-22 11:31:11,464 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-22 11:31:11,465 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-22 11:31:11,466 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-22 11:31:11,469 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-22 11:31:11,470 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 11:31:11" (1/1) ... [2020-06-22 11:31:11,473 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12ba30ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:31:11, skipping insertion in model container [2020-06-22 11:31:11,474 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 11:31:11" (1/1) ... [2020-06-22 11:31:11,481 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-22 11:31:11,499 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-22 11:31:11,655 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 11:31:11,659 INFO L191 MainTranslator]: Completed pre-run [2020-06-22 11:31:11,724 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 11:31:11,739 INFO L195 MainTranslator]: Completed translation [2020-06-22 11:31:11,740 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:31:11 WrapperNode [2020-06-22 11:31:11,740 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-22 11:31:11,741 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-22 11:31:11,741 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-22 11:31:11,741 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-22 11:31:11,750 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:31:11" (1/1) ... [2020-06-22 11:31:11,756 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:31:11" (1/1) ... [2020-06-22 11:31:11,775 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-22 11:31:11,775 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-22 11:31:11,776 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-22 11:31:11,776 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-22 11:31:11,786 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:31:11" (1/1) ... [2020-06-22 11:31:11,786 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:31:11" (1/1) ... [2020-06-22 11:31:11,787 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:31:11" (1/1) ... [2020-06-22 11:31:11,787 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:31:11" (1/1) ... [2020-06-22 11:31:11,789 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:31:11" (1/1) ... [2020-06-22 11:31:11,793 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:31:11" (1/1) ... [2020-06-22 11:31:11,794 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:31:11" (1/1) ... [2020-06-22 11:31:11,795 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-22 11:31:11,796 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-22 11:31:11,796 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-22 11:31:11,796 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-22 11:31:11,797 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:31:11" (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 [2020-06-22 11:31:11,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-22 11:31:11,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-22 11:31:12,015 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-22 11:31:12,016 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. [2020-06-22 11:31:12,017 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:31:12 BoogieIcfgContainer [2020-06-22 11:31:12,017 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-22 11:31:12,018 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-22 11:31:12,018 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-22 11:31:12,020 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-22 11:31:12,021 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:31:12" (1/1) ... [2020-06-22 11:31:12,036 INFO L313 BlockEncoder]: Initial Icfg 9 locations, 12 edges [2020-06-22 11:31:12,038 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-22 11:31:12,039 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-22 11:31:12,040 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-22 11:31:12,040 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-22 11:31:12,042 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-22 11:31:12,043 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-22 11:31:12,043 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-22 11:31:12,058 INFO L185 BlockEncoder]: Using Use SBE [2020-06-22 11:31:12,074 INFO L200 BlockEncoder]: SBE split 1 edges [2020-06-22 11:31:12,078 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-06-22 11:31:12,080 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 11:31:12,096 INFO L100 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2020-06-22 11:31:12,098 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-06-22 11:31:12,100 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 11:31:12,100 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 11:31:12,100 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-22 11:31:12,100 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 11:31:12,101 INFO L313 BlockEncoder]: Encoded RCFG 5 locations, 8 edges [2020-06-22 11:31:12,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 11:31:12 BasicIcfg [2020-06-22 11:31:12,101 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-22 11:31:12,102 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-22 11:31:12,102 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-22 11:31:12,106 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-22 11:31:12,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.06 11:31:11" (1/4) ... [2020-06-22 11:31:12,107 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c58e878 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 11:31:12, skipping insertion in model container [2020-06-22 11:31:12,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:31:11" (2/4) ... [2020-06-22 11:31:12,108 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c58e878 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 11:31:12, skipping insertion in model container [2020-06-22 11:31:12,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:31:12" (3/4) ... [2020-06-22 11:31:12,108 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c58e878 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 11:31:12, skipping insertion in model container [2020-06-22 11:31:12,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 11:31:12" (4/4) ... [2020-06-22 11:31:12,110 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 11:31:12,121 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-22 11:31:12,131 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-06-22 11:31:12,152 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-06-22 11:31:12,182 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 11:31:12,183 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-22 11:31:12,183 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-22 11:31:12,183 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 11:31:12,183 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 11:31:12,184 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 11:31:12,184 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-22 11:31:12,184 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 11:31:12,184 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-22 11:31:12,199 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states. [2020-06-22 11:31:12,204 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-06-22 11:31:12,208 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-06-22 11:31:12,259 INFO L448 ceAbstractionStarter]: For program point L16(lines 16 20) no Hoare annotation was computed. [2020-06-22 11:31:12,259 INFO L448 ceAbstractionStarter]: For program point L16-2(lines 13 21) no Hoare annotation was computed. [2020-06-22 11:31:12,259 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-06-22 11:31:12,259 INFO L448 ceAbstractionStarter]: For program point L13(lines 13 21) no Hoare annotation was computed. [2020-06-22 11:31:12,260 INFO L451 ceAbstractionStarter]: At program point L12-2(lines 12 23) the Hoare annotation is: true [2020-06-22 11:31:12,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 11:31:12 BasicIcfg [2020-06-22 11:31:12,269 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-22 11:31:12,270 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-22 11:31:12,270 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-22 11:31:12,274 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-22 11:31:12,275 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 11:31:12,275 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.06 11:31:11" (1/5) ... [2020-06-22 11:31:12,276 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6472e504 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 11:31:12, skipping insertion in model container [2020-06-22 11:31:12,276 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 11:31:12,276 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:31:11" (2/5) ... [2020-06-22 11:31:12,276 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6472e504 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 11:31:12, skipping insertion in model container [2020-06-22 11:31:12,276 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 11:31:12,277 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:31:12" (3/5) ... [2020-06-22 11:31:12,277 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6472e504 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 11:31:12, skipping insertion in model container [2020-06-22 11:31:12,277 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 11:31:12,277 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 11:31:12" (4/5) ... [2020-06-22 11:31:12,278 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6472e504 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 11:31:12, skipping insertion in model container [2020-06-22 11:31:12,278 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 11:31:12,278 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 11:31:12" (5/5) ... [2020-06-22 11:31:12,279 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 11:31:12,308 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 11:31:12,309 INFO L374 BuchiCegarLoop]: Interprodecural is true [2020-06-22 11:31:12,309 INFO L375 BuchiCegarLoop]: Hoare is true [2020-06-22 11:31:12,309 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 11:31:12,309 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 11:31:12,309 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 11:31:12,309 INFO L379 BuchiCegarLoop]: Difference is false [2020-06-22 11:31:12,310 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 11:31:12,310 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-06-22 11:31:12,313 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states. [2020-06-22 11:31:12,330 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-06-22 11:31:12,330 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 11:31:12,330 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 11:31:12,336 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 11:31:12,336 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 11:31:12,336 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2020-06-22 11:31:12,336 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states. [2020-06-22 11:31:12,337 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-06-22 11:31:12,337 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 11:31:12,337 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 11:31:12,337 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 11:31:12,338 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 11:31:12,343 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [33] ULTIMATE.startENTRY-->L12-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~c~0_1 0) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~z~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_1, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~c~0, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 3#L12-2true [2020-06-22 11:31:12,343 INFO L796 eck$LassoCheckResult]: Loop: 3#L12-2true [45] L12-2-->L13: Formula: (< v_ULTIMATE.start_main_~z~0_9 v_ULTIMATE.start_main_~y~0_10) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_9} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_9} AuxVars[] AssignedVars[] 6#L13true [36] L13-->L16-2: Formula: (and (< v_ULTIMATE.start_main_~z~0_10 v_ULTIMATE.start_main_~x~0_9) (= v_ULTIMATE.start_main_~x~0_8 (+ v_ULTIMATE.start_main_~x~0_9 (- 1)))) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_10} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_10} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 7#L16-2true [40] L16-2-->L12-2: Formula: (= v_ULTIMATE.start_main_~c~0_6 (+ v_ULTIMATE.start_main_~c~0_7 1)) InVars {ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_7} OutVars{ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~c~0] 3#L12-2true [2020-06-22 11:31:12,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 11:31:12,349 INFO L82 PathProgramCache]: Analyzing trace with hash 64, now seen corresponding path program 1 times [2020-06-22 11:31:12,351 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 11:31:12,352 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 11:31:12,380 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:31:12,380 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 11:31:12,380 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:31:12,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:31:12,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:31:12,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 11:31:12,421 INFO L82 PathProgramCache]: Analyzing trace with hash 74192, now seen corresponding path program 1 times [2020-06-22 11:31:12,421 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 11:31:12,421 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 11:31:12,423 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:31:12,423 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 11:31:12,423 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:31:12,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:31:12,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:31:12,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 11:31:12,436 INFO L82 PathProgramCache]: Analyzing trace with hash 1951025, now seen corresponding path program 1 times [2020-06-22 11:31:12,436 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 11:31:12,436 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 11:31:12,438 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:31:12,438 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 11:31:12,438 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:31:12,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:31:12,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:31:12,499 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 11:31:12,500 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 11:31:12,500 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 11:31:12,501 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 11:31:12,501 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 11:31:12,501 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 11:31:12,501 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 11:31:12,501 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 11:31:12,501 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 11:31:12,502 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 11:31:12,502 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 11:31:12,521 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 11:31:12,531 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 11:31:12,535 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 11:31:12,547 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 11:31:12,671 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 11:31:12,672 INFO L412 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 [2020-06-22 11:31:12,680 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 11:31:12,680 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 11:31:12,712 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 11:31:12,713 INFO L448 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 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 [2020-06-22 11:31:12,722 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 11:31:12,722 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 11:31:12,750 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 11:31:12,750 INFO L448 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 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 [2020-06-22 11:31:12,756 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 11:31:12,756 INFO L163 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 [2020-06-22 11:31:12,787 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 11:31:12,787 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 11:31:12,821 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 11:31:12,822 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0=0} Honda state: {ULTIMATE.start_main_~c~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~c~0=0}, {ULTIMATE.start_main_~c~0=-1}, {ULTIMATE.start_main_~c~0=2}] Lambdas: [4, 3, 1] Nus: [0, 1] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 11:31:12,850 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 11:31:12,850 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 11:31:12,882 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 11:31:12,882 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 11:31:13,223 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 11:31:13,226 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 11:31:13,226 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 11:31:13,226 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 11:31:13,226 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 11:31:13,226 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 11:31:13,227 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 11:31:13,227 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 11:31:13,227 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 11:31:13,227 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 11:31:13,227 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 11:31:13,227 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 11:31:13,229 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 11:31:13,233 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 11:31:13,236 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 11:31:13,240 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 11:31:13,352 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 11:31:13,358 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 11:31:13,360 INFO L122 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 [2020-06-22 11:31:13,361 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 11:31:13,361 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 11:31:13,362 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 11:31:13,362 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 11:31:13,366 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 11:31:13,366 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 11:31:13,375 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 11:31:13,375 INFO L122 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 [2020-06-22 11:31:13,376 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 11:31:13,376 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 11:31:13,376 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 11:31:13,376 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 11:31:13,379 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 11:31:13,379 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 11:31:13,388 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 11:31:13,388 INFO L122 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 [2020-06-22 11:31:13,389 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 11:31:13,389 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 11:31:13,390 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 11:31:13,390 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 11:31:13,390 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 11:31:13,391 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 11:31:13,391 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 11:31:13,395 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 11:31:13,396 INFO L122 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 [2020-06-22 11:31:13,396 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 11:31:13,396 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 11:31:13,397 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 11:31:13,397 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 11:31:13,397 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 11:31:13,398 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 11:31:13,398 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 11:31:13,405 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 11:31:13,413 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-06-22 11:31:13,414 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 11:31:13,416 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 11:31:13,416 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 11:31:13,416 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 11:31:13,417 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0) = -1*ULTIMATE.start_main_~z~0 + 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2020-06-22 11:31:13,418 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 11:31:13,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 11:31:13,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 11:31:13,459 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 11:31:13,461 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 11:31:13,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 11:31:13,473 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 11:31:13,474 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 11:31:13,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 11:31:13,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 11:31:13,540 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 11:31:13,541 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 11:31:13,542 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-06-22 11:31:13,547 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-06-22 11:31:13,548 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 5 states. Second operand 4 states. [2020-06-22 11:31:13,619 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 5 states.. Second operand 4 states. Result 18 states and 30 transitions. Complement of second has 6 states. [2020-06-22 11:31:13,619 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-06-22 11:31:13,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-06-22 11:31:13,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 23 transitions. [2020-06-22 11:31:13,624 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 1 letters. Loop has 3 letters. [2020-06-22 11:31:13,625 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 11:31:13,625 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 4 letters. Loop has 3 letters. [2020-06-22 11:31:13,625 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 11:31:13,626 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 1 letters. Loop has 6 letters. [2020-06-22 11:31:13,626 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 11:31:13,632 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 30 transitions. [2020-06-22 11:31:13,634 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-06-22 11:31:13,639 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 16 states and 27 transitions. [2020-06-22 11:31:13,640 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2020-06-22 11:31:13,640 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2020-06-22 11:31:13,641 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 27 transitions. [2020-06-22 11:31:13,641 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 11:31:13,641 INFO L706 BuchiCegarLoop]: Abstraction has 16 states and 27 transitions. [2020-06-22 11:31:13,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 27 transitions. [2020-06-22 11:31:13,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 13. [2020-06-22 11:31:13,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-06-22 11:31:13,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 24 transitions. [2020-06-22 11:31:13,672 INFO L729 BuchiCegarLoop]: Abstraction has 13 states and 24 transitions. [2020-06-22 11:31:13,672 INFO L609 BuchiCegarLoop]: Abstraction has 13 states and 24 transitions. [2020-06-22 11:31:13,672 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2020-06-22 11:31:13,672 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 24 transitions. [2020-06-22 11:31:13,673 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-06-22 11:31:13,673 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 11:31:13,673 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 11:31:13,673 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 11:31:13,674 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-06-22 11:31:13,674 INFO L794 eck$LassoCheckResult]: Stem: 75#ULTIMATE.startENTRY [33] ULTIMATE.startENTRY-->L12-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~c~0_1 0) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~z~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_1, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~c~0, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 76#L12-2 [45] L12-2-->L13: Formula: (< v_ULTIMATE.start_main_~z~0_9 v_ULTIMATE.start_main_~y~0_10) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_9} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_9} AuxVars[] AssignedVars[] 71#L13 [2020-06-22 11:31:13,674 INFO L796 eck$LassoCheckResult]: Loop: 71#L13 [43] L13-->L16: Formula: (>= v_ULTIMATE.start_main_~z~0_11 v_ULTIMATE.start_main_~x~0_10) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_11} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_11} AuxVars[] AssignedVars[] 77#L16 [34] L16-->L16-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_6 (+ v_ULTIMATE.start_main_~y~0_7 (- 1))) (< v_ULTIMATE.start_main_~z~0_6 v_ULTIMATE.start_main_~y~0_7)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_6} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0] 78#L16-2 [40] L16-2-->L12-2: Formula: (= v_ULTIMATE.start_main_~c~0_6 (+ v_ULTIMATE.start_main_~c~0_7 1)) InVars {ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_7} OutVars{ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~c~0] 70#L12-2 [45] L12-2-->L13: Formula: (< v_ULTIMATE.start_main_~z~0_9 v_ULTIMATE.start_main_~y~0_10) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_9} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_9} AuxVars[] AssignedVars[] 71#L13 [2020-06-22 11:31:13,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 11:31:13,675 INFO L82 PathProgramCache]: Analyzing trace with hash 2029, now seen corresponding path program 1 times [2020-06-22 11:31:13,675 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 11:31:13,675 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 11:31:13,676 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:31:13,677 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 11:31:13,677 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:31:13,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:31:13,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:31:13,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 11:31:13,683 INFO L82 PathProgramCache]: Analyzing trace with hash 2238493, now seen corresponding path program 1 times [2020-06-22 11:31:13,683 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 11:31:13,683 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 11:31:13,684 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:31:13,685 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 11:31:13,685 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:31:13,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:31:13,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:31:13,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 11:31:13,693 INFO L82 PathProgramCache]: Analyzing trace with hash 1875139081, now seen corresponding path program 1 times [2020-06-22 11:31:13,693 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 11:31:13,693 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 11:31:13,694 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:31:13,694 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 11:31:13,694 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:31:13,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:31:13,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:31:13,746 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 11:31:13,746 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 11:31:13,746 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 11:31:13,746 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 11:31:13,747 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 11:31:13,747 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 11:31:13,747 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 11:31:13,747 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 11:31:13,747 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 11:31:13,747 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 11:31:13,747 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 11:31:13,749 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 11:31:13,753 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 11:31:13,757 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 11:31:13,767 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 11:31:13,857 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 11:31:13,857 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/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 [2020-06-22 11:31:13,864 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 11:31:13,864 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 11:31:13,892 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 11:31:13,892 INFO L448 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 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 [2020-06-22 11:31:13,899 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 11:31:13,899 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 11:31:13,926 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 11:31:13,926 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 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 [2020-06-22 11:31:13,933 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 11:31:13,933 INFO L163 nArgumentSynthesizer]: Using integer mode. 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 [2020-06-22 11:31:13,966 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 11:31:13,967 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 11:31:14,554 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 11:31:14,557 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 11:31:14,557 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 11:31:14,557 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 11:31:14,557 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 11:31:14,557 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 11:31:14,558 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 11:31:14,558 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 11:31:14,558 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 11:31:14,558 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 11:31:14,558 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 11:31:14,558 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 11:31:14,560 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 11:31:14,563 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 11:31:14,566 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 11:31:14,573 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 11:31:14,618 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 11:31:14,618 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 11:31:14,619 INFO L122 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 [2020-06-22 11:31:14,620 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 11:31:14,620 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 11:31:14,620 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 11:31:14,620 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 11:31:14,622 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 11:31:14,622 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 11:31:14,626 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 11:31:14,627 INFO L122 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 [2020-06-22 11:31:14,627 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 11:31:14,627 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 11:31:14,627 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 11:31:14,628 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 11:31:14,629 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 11:31:14,630 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 11:31:14,635 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 11:31:14,635 INFO L122 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 [2020-06-22 11:31:14,636 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 11:31:14,636 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 11:31:14,636 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 11:31:14,636 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 11:31:14,636 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 11:31:14,637 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 11:31:14,637 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 11:31:14,642 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 11:31:14,647 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 11:31:14,647 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 11:31:14,648 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 11:31:14,648 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 11:31:14,648 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 11:31:14,648 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~y~0) = -1*ULTIMATE.start_main_~z~0 + 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2020-06-22 11:31:14,649 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 11:31:14,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 11:31:14,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 11:31:14,668 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 11:31:14,668 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 11:31:14,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 11:31:14,674 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 11:31:14,674 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 11:31:14,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 11:31:14,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 11:31:14,688 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 11:31:14,688 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 11:31:14,714 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-06-22 11:31:14,714 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-06-22 11:31:14,715 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 13 states and 24 transitions. cyclomatic complexity: 13 Second operand 4 states. [2020-06-22 11:31:14,799 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 13 states and 24 transitions. cyclomatic complexity: 13. Second operand 4 states. Result 96 states and 164 transitions. Complement of second has 18 states. [2020-06-22 11:31:14,799 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 2 non-accepting loop states 2 accepting loop states [2020-06-22 11:31:14,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-06-22 11:31:14,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 33 transitions. [2020-06-22 11:31:14,801 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 33 transitions. Stem has 2 letters. Loop has 4 letters. [2020-06-22 11:31:14,802 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 11:31:14,802 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 33 transitions. Stem has 6 letters. Loop has 4 letters. [2020-06-22 11:31:14,802 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 11:31:14,803 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 33 transitions. Stem has 2 letters. Loop has 8 letters. [2020-06-22 11:31:14,803 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 11:31:14,805 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 96 states and 164 transitions. [2020-06-22 11:31:14,810 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 11:31:14,810 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 96 states to 0 states and 0 transitions. [2020-06-22 11:31:14,811 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-06-22 11:31:14,811 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-06-22 11:31:14,811 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-06-22 11:31:14,811 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 11:31:14,811 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 11:31:14,811 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 11:31:14,811 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 11:31:14,811 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2020-06-22 11:31:14,811 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-06-22 11:31:14,812 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 11:31:14,812 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-06-22 11:31:14,818 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 11:31:14 BasicIcfg [2020-06-22 11:31:14,818 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-22 11:31:14,819 INFO L168 Benchmark]: Toolchain (without parser) took 3355.32 ms. Allocated memory was 514.9 MB in the beginning and 568.9 MB in the end (delta: 54.0 MB). Free memory was 437.3 MB in the beginning and 473.6 MB in the end (delta: -36.2 MB). Peak memory consumption was 17.8 MB. Max. memory is 50.3 GB. [2020-06-22 11:31:14,821 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 514.9 MB. Free memory is still 457.0 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 11:31:14,821 INFO L168 Benchmark]: CACSL2BoogieTranslator took 274.94 ms. Allocated memory was 514.9 MB in the beginning and 536.3 MB in the end (delta: 21.5 MB). Free memory was 436.8 MB in the beginning and 507.5 MB in the end (delta: -70.7 MB). Peak memory consumption was 29.4 MB. Max. memory is 50.3 GB. [2020-06-22 11:31:14,822 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.43 ms. Allocated memory is still 536.3 MB. Free memory was 507.5 MB in the beginning and 505.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 50.3 GB. [2020-06-22 11:31:14,823 INFO L168 Benchmark]: Boogie Preprocessor took 20.21 ms. Allocated memory is still 536.3 MB. Free memory was 505.8 MB in the beginning and 505.0 MB in the end (delta: 797.8 kB). Peak memory consumption was 797.8 kB. Max. memory is 50.3 GB. [2020-06-22 11:31:14,823 INFO L168 Benchmark]: RCFGBuilder took 221.51 ms. Allocated memory is still 536.3 MB. Free memory was 504.3 MB in the beginning and 493.1 MB in the end (delta: 11.2 MB). Peak memory consumption was 11.2 MB. Max. memory is 50.3 GB. [2020-06-22 11:31:14,824 INFO L168 Benchmark]: BlockEncodingV2 took 83.49 ms. Allocated memory is still 536.3 MB. Free memory was 493.1 MB in the beginning and 487.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. [2020-06-22 11:31:14,824 INFO L168 Benchmark]: TraceAbstraction took 166.67 ms. Allocated memory is still 536.3 MB. Free memory was 487.7 MB in the beginning and 478.4 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 50.3 GB. [2020-06-22 11:31:14,825 INFO L168 Benchmark]: BuchiAutomizer took 2548.84 ms. Allocated memory was 536.3 MB in the beginning and 568.9 MB in the end (delta: 32.5 MB). Free memory was 478.4 MB in the beginning and 473.6 MB in the end (delta: 4.8 MB). Peak memory consumption was 37.3 MB. Max. memory is 50.3 GB. [2020-06-22 11:31:14,829 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 9 locations, 12 edges - StatisticsResult: Encoded RCFG 5 locations, 8 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 514.9 MB. Free memory is still 457.0 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 274.94 ms. Allocated memory was 514.9 MB in the beginning and 536.3 MB in the end (delta: 21.5 MB). Free memory was 436.8 MB in the beginning and 507.5 MB in the end (delta: -70.7 MB). Peak memory consumption was 29.4 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 34.43 ms. Allocated memory is still 536.3 MB. Free memory was 507.5 MB in the beginning and 505.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 20.21 ms. Allocated memory is still 536.3 MB. Free memory was 505.8 MB in the beginning and 505.0 MB in the end (delta: 797.8 kB). Peak memory consumption was 797.8 kB. Max. memory is 50.3 GB. * RCFGBuilder took 221.51 ms. Allocated memory is still 536.3 MB. Free memory was 504.3 MB in the beginning and 493.1 MB in the end (delta: 11.2 MB). Peak memory consumption was 11.2 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 83.49 ms. Allocated memory is still 536.3 MB. Free memory was 493.1 MB in the beginning and 487.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. * TraceAbstraction took 166.67 ms. Allocated memory is still 536.3 MB. Free memory was 487.7 MB in the beginning and 478.4 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 2548.84 ms. Allocated memory was 536.3 MB in the beginning and 568.9 MB in the end (delta: 32.5 MB). Free memory was 478.4 MB in the beginning and 473.6 MB in the end (delta: 4.8 MB). Peak memory consumption was 37.3 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: 12]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 5 locations, 0 error locations. SAFE Result, 0.0s OverallTime, 0 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 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 affine ranking function -1 * z + x and consists of 4 locations. One nondeterministic module has affine ranking function -1 * z + y and consists of 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.5s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 13 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 10 SDtfs, 38 SDslu, 6 SDs, 0 SdLazy, 51 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax166 hnf100 lsp43 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq146 hnf94 smp100 dnf100 smp100 tf111 neg100 sie114 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 15ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-06-22 11:31:07.838 ----------------------------------------------- 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 -i /export/starexec/sandbox2/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-06-22 11:31:15.061 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check