YES Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-22 09:45:55,068 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-22 09:45:55,070 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-22 09:45:55,081 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-22 09:45:55,081 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-22 09:45:55,082 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-22 09:45:55,083 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-22 09:45:55,085 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-22 09:45:55,086 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-22 09:45:55,087 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-22 09:45:55,088 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-22 09:45:55,088 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-22 09:45:55,089 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-22 09:45:55,090 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-22 09:45:55,091 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-22 09:45:55,091 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-22 09:45:55,092 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-22 09:45:55,094 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-22 09:45:55,096 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-22 09:45:55,097 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-22 09:45:55,098 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-22 09:45:55,099 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-22 09:45:55,101 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-22 09:45:55,102 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-22 09:45:55,102 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-22 09:45:55,103 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-22 09:45:55,103 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-22 09:45:55,104 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-22 09:45:55,104 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-22 09:45:55,105 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-22 09:45:55,105 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-22 09:45:55,106 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-22 09:45:55,107 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-22 09:45:55,107 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-22 09:45:55,108 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-22 09:45:55,108 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-22 09:45:55,108 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-22 09:45:55,109 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-22 09:45:55,110 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-22 09:45:55,110 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-06-22 09:45:55,124 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-22 09:45:55,124 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-22 09:45:55,125 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-22 09:45:55,126 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-22 09:45:55,126 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-22 09:45:55,126 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-22 09:45:55,126 INFO L133 SettingsManager]: * Use SBE=true [2020-06-22 09:45:55,126 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-22 09:45:55,127 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-22 09:45:55,127 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-22 09:45:55,127 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-22 09:45:55,127 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-22 09:45:55,127 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-22 09:45:55,127 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-22 09:45:55,128 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:45:55,128 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-22 09:45:55,128 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-22 09:45:55,128 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-22 09:45:55,128 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-22 09:45:55,129 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-22 09:45:55,129 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-22 09:45:55,129 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-22 09:45:55,129 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-22 09:45:55,129 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-22 09:45:55,129 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 09:45:55,130 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-22 09:45:55,130 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-22 09:45:55,130 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-22 09:45:55,130 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-22 09:45:55,156 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-22 09:45:55,169 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-22 09:45:55,172 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-22 09:45:55,174 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-22 09:45:55,174 INFO L276 PluginConnector]: CDTParser initialized [2020-06-22 09:45:55,175 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 09:45:55,249 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/9820c1c58b1c4bc89640946219779b67/FLAGd7f1d1324 [2020-06-22 09:45:55,587 INFO L307 CDTParser]: Found 1 translation units. [2020-06-22 09:45:55,587 INFO L161 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 09:45:55,594 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/9820c1c58b1c4bc89640946219779b67/FLAGd7f1d1324 [2020-06-22 09:45:56,004 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/9820c1c58b1c4bc89640946219779b67 [2020-06-22 09:45:56,015 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-22 09:45:56,017 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-22 09:45:56,018 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-22 09:45:56,018 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-22 09:45:56,021 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-22 09:45:56,022 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 09:45:56" (1/1) ... [2020-06-22 09:45:56,025 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66f91c4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:45:56, skipping insertion in model container [2020-06-22 09:45:56,026 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 09:45:56" (1/1) ... [2020-06-22 09:45:56,033 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-22 09:45:56,052 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-22 09:45:56,209 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 09:45:56,214 INFO L191 MainTranslator]: Completed pre-run [2020-06-22 09:45:56,233 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 09:45:56,308 INFO L195 MainTranslator]: Completed translation [2020-06-22 09:45:56,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:45:56 WrapperNode [2020-06-22 09:45:56,308 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-22 09:45:56,309 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-22 09:45:56,309 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-22 09:45:56,310 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-22 09:45:56,321 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:45:56" (1/1) ... [2020-06-22 09:45:56,327 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:45:56" (1/1) ... [2020-06-22 09:45:56,348 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-22 09:45:56,349 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-22 09:45:56,349 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-22 09:45:56,349 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-22 09:45:56,358 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:45:56" (1/1) ... [2020-06-22 09:45:56,358 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:45:56" (1/1) ... [2020-06-22 09:45:56,359 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:45:56" (1/1) ... [2020-06-22 09:45:56,359 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:45:56" (1/1) ... [2020-06-22 09:45:56,361 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:45:56" (1/1) ... [2020-06-22 09:45:56,366 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:45:56" (1/1) ... [2020-06-22 09:45:56,367 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:45:56" (1/1) ... [2020-06-22 09:45:56,369 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-22 09:45:56,369 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-22 09:45:56,369 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-22 09:45:56,370 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-22 09:45:56,370 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:45:56" (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 09:45:56,438 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-22 09:45:56,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-22 09:45:56,592 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-22 09:45:56,592 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. [2020-06-22 09:45:56,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 09:45:56 BoogieIcfgContainer [2020-06-22 09:45:56,594 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-22 09:45:56,594 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-22 09:45:56,595 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-22 09:45:56,597 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-22 09:45:56,597 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 09:45:56" (1/1) ... [2020-06-22 09:45:56,613 INFO L313 BlockEncoder]: Initial Icfg 10 locations, 15 edges [2020-06-22 09:45:56,615 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-22 09:45:56,615 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-22 09:45:56,616 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-22 09:45:56,617 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-22 09:45:56,618 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-22 09:45:56,619 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-22 09:45:56,620 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-22 09:45:56,637 INFO L185 BlockEncoder]: Using Use SBE [2020-06-22 09:45:56,656 INFO L200 BlockEncoder]: SBE split 6 edges [2020-06-22 09:45:56,661 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-06-22 09:45:56,663 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 09:45:56,673 INFO L100 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2020-06-22 09:45:56,675 INFO L70 RemoveSinkStates]: Removed 5 edges and 2 locations by removing sink states [2020-06-22 09:45:56,676 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 09:45:56,676 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 09:45:56,676 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-22 09:45:56,677 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 09:45:56,677 INFO L313 BlockEncoder]: Encoded RCFG 6 locations, 16 edges [2020-06-22 09:45:56,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 09:45:56 BasicIcfg [2020-06-22 09:45:56,678 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-22 09:45:56,678 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-22 09:45:56,679 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-22 09:45:56,682 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-22 09:45:56,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.06 09:45:56" (1/4) ... [2020-06-22 09:45:56,683 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5848981c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 09:45:56, skipping insertion in model container [2020-06-22 09:45:56,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:45:56" (2/4) ... [2020-06-22 09:45:56,683 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5848981c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 09:45:56, skipping insertion in model container [2020-06-22 09:45:56,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 09:45:56" (3/4) ... [2020-06-22 09:45:56,684 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5848981c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 09:45:56, skipping insertion in model container [2020-06-22 09:45:56,684 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 09:45:56" (4/4) ... [2020-06-22 09:45:56,685 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 09:45:56,695 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-22 09:45:56,703 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-06-22 09:45:56,719 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-06-22 09:45:56,748 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 09:45:56,748 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-22 09:45:56,749 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-22 09:45:56,749 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 09:45:56,749 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 09:45:56,749 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 09:45:56,749 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-22 09:45:56,749 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 09:45:56,749 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-22 09:45:56,763 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2020-06-22 09:45:56,769 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-06-22 09:45:56,772 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 6 states. [2020-06-22 09:45:56,821 INFO L448 ceAbstractionStarter]: For program point L32(lines 32 36) no Hoare annotation was computed. [2020-06-22 09:45:56,821 INFO L451 ceAbstractionStarter]: At program point L32-2(lines 21 37) the Hoare annotation is: true [2020-06-22 09:45:56,821 INFO L448 ceAbstractionStarter]: For program point L30(lines 30 36) no Hoare annotation was computed. [2020-06-22 09:45:56,821 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-06-22 09:45:56,821 INFO L448 ceAbstractionStarter]: For program point L23(lines 23 29) no Hoare annotation was computed. [2020-06-22 09:45:56,822 INFO L448 ceAbstractionStarter]: For program point L22(lines 22 36) no Hoare annotation was computed. [2020-06-22 09:45:56,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 09:45:56 BasicIcfg [2020-06-22 09:45:56,830 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-22 09:45:56,830 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-22 09:45:56,830 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-22 09:45:56,834 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-22 09:45:56,834 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 09:45:56,835 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.06 09:45:56" (1/5) ... [2020-06-22 09:45:56,835 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1bb38aa1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 09:45:56, skipping insertion in model container [2020-06-22 09:45:56,835 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 09:45:56,836 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:45:56" (2/5) ... [2020-06-22 09:45:56,836 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1bb38aa1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 09:45:56, skipping insertion in model container [2020-06-22 09:45:56,836 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 09:45:56,836 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 09:45:56" (3/5) ... [2020-06-22 09:45:56,837 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1bb38aa1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 09:45:56, skipping insertion in model container [2020-06-22 09:45:56,837 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 09:45:56,837 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 09:45:56" (4/5) ... [2020-06-22 09:45:56,837 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1bb38aa1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 09:45:56, skipping insertion in model container [2020-06-22 09:45:56,837 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 09:45:56,837 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 09:45:56" (5/5) ... [2020-06-22 09:45:56,839 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 09:45:56,866 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 09:45:56,866 INFO L374 BuchiCegarLoop]: Interprodecural is true [2020-06-22 09:45:56,866 INFO L375 BuchiCegarLoop]: Hoare is true [2020-06-22 09:45:56,866 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 09:45:56,866 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 09:45:56,867 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 09:45:56,867 INFO L379 BuchiCegarLoop]: Difference is false [2020-06-22 09:45:56,867 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 09:45:56,867 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-06-22 09:45:56,870 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2020-06-22 09:45:56,887 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-06-22 09:45:56,887 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 09:45:56,887 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 09:45:56,894 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 09:45:56,894 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 09:45:56,894 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2020-06-22 09:45:56,895 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2020-06-22 09:45:56,896 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-06-22 09:45:56,896 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 09:45:56,896 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 09:45:56,896 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 09:45:56,896 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 09:45:56,901 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [40] ULTIMATE.startENTRY-->L32-2: Formula: (and (= v_ULTIMATE.start_main_~tk~0_1 |v_ULTIMATE.start_main_#t~nondet5_4|) (= v_ULTIMATE.start_main_~j~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~an~0_1 |v_ULTIMATE.start_main_#t~nondet3_4|) (= v_ULTIMATE.start_main_~bn~0_1 |v_ULTIMATE.start_main_#t~nondet4_4|) (= v_ULTIMATE.start_main_~k~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|) (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_1, 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_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_#t~nondet8=|v_ULTIMATE.start_main_#t~nondet8_1|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_1|, ULTIMATE.start_main_#t~nondet7=|v_ULTIMATE.start_main_#t~nondet7_1|, ULTIMATE.start_main_~tk~0=v_ULTIMATE.start_main_~tk~0_1, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_1, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet4_4|, |v_ULTIMATE.start_main_#t~nondet3_4|, |v_ULTIMATE.start_main_#t~nondet5_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_~k~0, 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_#t~nondet3, ULTIMATE.start_main_#t~nondet8, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_#t~nondet6, ULTIMATE.start_main_#t~nondet7, ULTIMATE.start_main_~tk~0, ULTIMATE.start_main_~j~0, ULTIMATE.start_main_~bn~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~an~0] 7#L32-2true [2020-06-22 09:45:56,902 INFO L796 eck$LassoCheckResult]: Loop: 7#L32-2true [60] L32-2-->L22: Formula: (and (<= (+ v_ULTIMATE.start_main_~tk~0_7 1) v_ULTIMATE.start_main_~k~0_7) (<= v_ULTIMATE.start_main_~i~0_7 v_ULTIMATE.start_main_~an~0_7) (<= v_ULTIMATE.start_main_~j~0_7 v_ULTIMATE.start_main_~bn~0_7)) InVars {ULTIMATE.start_main_~tk~0=v_ULTIMATE.start_main_~tk~0_7, ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_7, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_7, ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} OutVars{ULTIMATE.start_main_~tk~0=v_ULTIMATE.start_main_~tk~0_7, ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_7, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_7, ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} AuxVars[] AssignedVars[] 5#L22true [43] L22-->L23: Formula: (and (<= v_ULTIMATE.start_main_~i~0_8 v_ULTIMATE.start_main_~an~0_8) (<= v_ULTIMATE.start_main_~j~0_8 v_ULTIMATE.start_main_~bn~0_8)) InVars {ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_8, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_8, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_8} OutVars{ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_8, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_8, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_8} AuxVars[] AssignedVars[] 6#L23true [69] L23-->L32-2: Formula: (and (< 0 |v_ULTIMATE.start_main_#t~nondet6_3|) (= v_ULTIMATE.start_main_~k~0_8 |v_ULTIMATE.start_main_#t~nondet7_3|) (= v_ULTIMATE.start_main_~tk~0_8 v_ULTIMATE.start_main_~k~0_9) (= v_ULTIMATE.start_main_~j~0_9 (+ v_ULTIMATE.start_main_~k~0_9 v_ULTIMATE.start_main_~j~0_10))) InVars {ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_9, ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_3|, ULTIMATE.start_main_#t~nondet7=|v_ULTIMATE.start_main_#t~nondet7_3|, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10} OutVars{ULTIMATE.start_main_~tk~0=v_ULTIMATE.start_main_~tk~0_8, ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_8, ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_2|, ULTIMATE.start_main_#t~nondet7=|v_ULTIMATE.start_main_#t~nondet7_2|, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~tk~0, ULTIMATE.start_main_~k~0, ULTIMATE.start_main_~j~0, ULTIMATE.start_main_#t~nondet6, ULTIMATE.start_main_#t~nondet7] 7#L32-2true [2020-06-22 09:45:56,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 09:45:56,908 INFO L82 PathProgramCache]: Analyzing trace with hash 71, now seen corresponding path program 1 times [2020-06-22 09:45:56,910 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 09:45:56,911 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 09:45:56,938 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:45:56,938 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 09:45:56,939 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:45:56,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:45:56,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:45:56,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 09:45:56,981 INFO L82 PathProgramCache]: Analyzing trace with hash 88853, now seen corresponding path program 1 times [2020-06-22 09:45:56,981 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 09:45:56,981 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 09:45:56,983 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:45:56,983 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 09:45:56,983 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:45:56,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:45:56,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:45:56,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 09:45:56,999 INFO L82 PathProgramCache]: Analyzing trace with hash 2174223, now seen corresponding path program 1 times [2020-06-22 09:45:56,999 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 09:45:56,999 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 09:45:57,001 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:45:57,001 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 09:45:57,001 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:45:57,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:45:57,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:45:57,098 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 09:45:57,099 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 09:45:57,099 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 09:45:57,099 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 09:45:57,099 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 09:45:57,099 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:45:57,100 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 09:45:57,100 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 09:45:57,100 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 09:45:57,100 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 09:45:57,100 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 09:45:57,119 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 09:45:57,128 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 09:45:57,133 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 09:45:57,138 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 09:45:57,157 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 09:45:57,299 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 09:45:57,300 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 09:45:57,307 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 09:45:57,307 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 09:45:57,341 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 09:45:57,341 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~an~0=0, ULTIMATE.start_main_~i~0=0} Honda state: {ULTIMATE.start_main_~an~0=0, ULTIMATE.start_main_~i~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:45:57,347 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 09:45:57,347 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 09:45:57,374 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 09:45:57,374 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet6=1} Honda state: {ULTIMATE.start_main_#t~nondet6=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:45:57,380 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 09:45:57,381 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 09:45:57,410 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 09:45:57,410 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 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 09:45:57,415 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 09:45:57,415 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 09:45:57,442 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 09:45:57,442 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 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 09:45:57,448 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 09:45:57,448 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 09:45:57,483 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 09:45:57,483 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 09:45:59,968 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 09:45:59,973 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 09:45:59,973 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 09:45:59,973 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 09:45:59,973 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 09:45:59,973 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 09:45:59,973 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 09:45:59,974 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 09:45:59,974 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 09:45:59,974 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 09:45:59,974 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 09:45:59,974 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 09:45:59,976 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 09:45:59,980 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 09:45:59,984 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 09:45:59,987 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 09:45:59,990 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 09:46:00,074 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 09:46:00,080 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 09:46:00,082 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 09:46:00,083 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 09:46:00,083 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 09:46:00,084 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 09:46:00,084 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 09:46:00,084 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 09:46:00,086 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 09:46:00,086 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 09:46:00,090 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 09:46:00,090 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 09:46:00,091 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 09:46:00,091 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 09:46:00,091 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 09:46:00,091 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 09:46:00,092 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 09:46:00,092 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 09:46:00,092 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 09:46:00,096 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 09:46:00,096 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 09:46:00,097 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 09:46:00,097 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 09:46:00,097 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 09:46:00,097 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 09:46:00,100 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 09:46:00,100 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 09:46:00,105 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 09:46:00,105 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 09:46:00,106 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 09:46:00,106 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 09:46:00,106 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 09:46:00,106 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 09:46:00,108 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 09:46:00,108 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 09:46:00,115 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 09:46:00,115 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 09:46:00,116 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 09:46:00,116 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 09:46:00,116 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 09:46:00,116 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 09:46:00,117 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 09:46:00,118 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 09:46:00,118 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 09:46:00,129 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 09:46:00,129 INFO L497 LassoAnalysis]: Using template '2-nested'. [2020-06-22 09:46:00,130 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 09:46:00,130 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 09:46:00,131 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 09:46:00,131 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 09:46:00,131 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 09:46:00,131 INFO L207 nArgumentSynthesizer]: 3 template conjuncts. [2020-06-22 09:46:00,132 INFO L402 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-06-22 09:46:00,132 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 09:46:00,133 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 09:46:00,134 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 09:46:00,134 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 09:46:00,135 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 09:46:00,135 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 09:46:00,135 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 09:46:00,135 INFO L207 nArgumentSynthesizer]: 3 template conjuncts. [2020-06-22 09:46:00,136 INFO L402 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-06-22 09:46:00,136 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 09:46:00,141 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 09:46:00,141 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 09:46:00,142 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 09:46:00,142 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 09:46:00,142 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 09:46:00,142 INFO L207 nArgumentSynthesizer]: 3 template conjuncts. [2020-06-22 09:46:00,145 INFO L402 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2020-06-22 09:46:00,146 INFO L403 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2020-06-22 09:46:00,150 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 09:46:00,150 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 09:46:00,151 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 09:46:00,151 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 09:46:00,151 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 09:46:00,151 INFO L207 nArgumentSynthesizer]: 3 template conjuncts. [2020-06-22 09:46:00,154 INFO L402 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2020-06-22 09:46:00,154 INFO L403 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2020-06-22 09:46:00,163 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 09:46:00,163 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 09:46:00,164 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 09:46:00,164 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 09:46:00,164 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 09:46:00,164 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 09:46:00,165 INFO L207 nArgumentSynthesizer]: 3 template conjuncts. [2020-06-22 09:46:00,166 INFO L402 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-06-22 09:46:00,166 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 09:46:00,180 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 09:46:00,193 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-06-22 09:46:00,194 INFO L444 ModelExtractionUtils]: 7 out of 13 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 09:46:00,196 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 09:46:00,196 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 09:46:00,196 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 09:46:00,197 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = -2*ULTIMATE.start_main_~tk~0 f1 = 2*ULTIMATE.start_main_~bn~0 - 2*ULTIMATE.start_main_~j~0 + 1 Supporting invariants [] [2020-06-22 09:46:00,198 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 09:46:00,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 09:46:00,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 09:46:00,254 INFO L256 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 09:46:00,256 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 09:46:00,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 09:46:00,268 INFO L256 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 7 conjunts are in the unsatisfiable core [2020-06-22 09:46:00,269 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 09:46:00,353 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 09:46:00,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:46:00,710 INFO L137 LoopCannibalizer]: termination argument not suffcient for all loop shiftings [2020-06-22 09:46:00,710 INFO L98 LoopCannibalizer]: 9 predicates before loop cannibalization 9 predicates after loop cannibalization [2020-06-22 09:46:00,715 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 [2020-06-22 09:46:00,716 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 6 states. Second operand 3 states. [2020-06-22 09:46:01,117 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 6 states.. Second operand 3 states. Result 28 states and 81 transitions. Complement of second has 7 states. [2020-06-22 09:46:01,118 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-06-22 09:46:01,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-06-22 09:46:01,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 62 transitions. [2020-06-22 09:46:01,124 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 62 transitions. Stem has 1 letters. Loop has 3 letters. [2020-06-22 09:46:01,125 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 09:46:01,125 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 62 transitions. Stem has 4 letters. Loop has 3 letters. [2020-06-22 09:46:01,126 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 09:46:01,126 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 62 transitions. Stem has 1 letters. Loop has 6 letters. [2020-06-22 09:46:01,126 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 09:46:01,135 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 81 transitions. [2020-06-22 09:46:01,138 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 9 [2020-06-22 09:46:01,143 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 23 states and 64 transitions. [2020-06-22 09:46:01,144 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2020-06-22 09:46:01,144 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2020-06-22 09:46:01,145 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 64 transitions. [2020-06-22 09:46:01,145 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 09:46:01,145 INFO L706 BuchiCegarLoop]: Abstraction has 23 states and 64 transitions. [2020-06-22 09:46:01,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 64 transitions. [2020-06-22 09:46:01,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 21. [2020-06-22 09:46:01,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-06-22 09:46:01,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 59 transitions. [2020-06-22 09:46:01,178 INFO L729 BuchiCegarLoop]: Abstraction has 21 states and 59 transitions. [2020-06-22 09:46:01,179 INFO L609 BuchiCegarLoop]: Abstraction has 21 states and 59 transitions. [2020-06-22 09:46:01,179 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2020-06-22 09:46:01,179 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 59 transitions. [2020-06-22 09:46:01,180 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 9 [2020-06-22 09:46:01,180 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 09:46:01,180 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 09:46:01,181 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 09:46:01,181 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 09:46:01,182 INFO L794 eck$LassoCheckResult]: Stem: 92#ULTIMATE.startENTRY [40] ULTIMATE.startENTRY-->L32-2: Formula: (and (= v_ULTIMATE.start_main_~tk~0_1 |v_ULTIMATE.start_main_#t~nondet5_4|) (= v_ULTIMATE.start_main_~j~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~an~0_1 |v_ULTIMATE.start_main_#t~nondet3_4|) (= v_ULTIMATE.start_main_~bn~0_1 |v_ULTIMATE.start_main_#t~nondet4_4|) (= v_ULTIMATE.start_main_~k~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|) (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_1, 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_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_#t~nondet8=|v_ULTIMATE.start_main_#t~nondet8_1|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_1|, ULTIMATE.start_main_#t~nondet7=|v_ULTIMATE.start_main_#t~nondet7_1|, ULTIMATE.start_main_~tk~0=v_ULTIMATE.start_main_~tk~0_1, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_1, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet4_4|, |v_ULTIMATE.start_main_#t~nondet3_4|, |v_ULTIMATE.start_main_#t~nondet5_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_~k~0, 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_#t~nondet3, ULTIMATE.start_main_#t~nondet8, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_#t~nondet6, ULTIMATE.start_main_#t~nondet7, ULTIMATE.start_main_~tk~0, ULTIMATE.start_main_~j~0, ULTIMATE.start_main_~bn~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~an~0] 93#L32-2 [62] L32-2-->L22: Formula: (and (<= v_ULTIMATE.start_main_~an~0_7 v_ULTIMATE.start_main_~i~0_7) (<= (+ v_ULTIMATE.start_main_~tk~0_7 1) v_ULTIMATE.start_main_~k~0_7) (<= v_ULTIMATE.start_main_~j~0_7 v_ULTIMATE.start_main_~bn~0_7)) InVars {ULTIMATE.start_main_~tk~0=v_ULTIMATE.start_main_~tk~0_7, ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_7, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_7, ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} OutVars{ULTIMATE.start_main_~tk~0=v_ULTIMATE.start_main_~tk~0_7, ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_7, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_7, ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} AuxVars[] AssignedVars[] 94#L22 [2020-06-22 09:46:01,182 INFO L796 eck$LassoCheckResult]: Loop: 94#L22 [43] L22-->L23: Formula: (and (<= v_ULTIMATE.start_main_~i~0_8 v_ULTIMATE.start_main_~an~0_8) (<= v_ULTIMATE.start_main_~j~0_8 v_ULTIMATE.start_main_~bn~0_8)) InVars {ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_8, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_8, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_8} OutVars{ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_8, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_8, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_8} AuxVars[] AssignedVars[] 96#L23 [47] L23-->L32-2: Formula: (and (= 0 |v_ULTIMATE.start_main_#t~nondet6_5|) (= v_ULTIMATE.start_main_~i~0_9 (+ v_ULTIMATE.start_main_~i~0_10 1))) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10, ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_5|} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9, ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0, ULTIMATE.start_main_#t~nondet6] 88#L32-2 [60] L32-2-->L22: Formula: (and (<= (+ v_ULTIMATE.start_main_~tk~0_7 1) v_ULTIMATE.start_main_~k~0_7) (<= v_ULTIMATE.start_main_~i~0_7 v_ULTIMATE.start_main_~an~0_7) (<= v_ULTIMATE.start_main_~j~0_7 v_ULTIMATE.start_main_~bn~0_7)) InVars {ULTIMATE.start_main_~tk~0=v_ULTIMATE.start_main_~tk~0_7, ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_7, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_7, ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} OutVars{ULTIMATE.start_main_~tk~0=v_ULTIMATE.start_main_~tk~0_7, ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_7, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_7, ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} AuxVars[] AssignedVars[] 94#L22 [2020-06-22 09:46:01,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 09:46:01,182 INFO L82 PathProgramCache]: Analyzing trace with hash 2263, now seen corresponding path program 1 times [2020-06-22 09:46:01,182 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 09:46:01,183 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 09:46:01,184 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:46:01,184 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 09:46:01,184 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:46:01,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:46:01,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:46:01,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 09:46:01,194 INFO L82 PathProgramCache]: Analyzing trace with hash 72631, now seen corresponding path program 1 times [2020-06-22 09:46:01,194 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 09:46:01,195 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 09:46:01,196 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:46:01,196 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 09:46:01,196 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:46:01,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:46:01,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:46:01,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 09:46:01,202 INFO L82 PathProgramCache]: Analyzing trace with hash 67459873, now seen corresponding path program 1 times [2020-06-22 09:46:01,202 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 09:46:01,202 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 09:46:01,203 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:46:01,203 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 09:46:01,204 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:46:01,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 09:46:01,244 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 09:46:01,246 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 09:46:01,246 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-06-22 09:46:01,282 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 09:46:01,282 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 09:46:01,283 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 09:46:01,283 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 09:46:01,283 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 09:46:01,283 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:46:01,283 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 09:46:01,283 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 09:46:01,283 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 09:46:01,283 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 09:46:01,284 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 09:46:01,285 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 09:46:01,288 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 09:46:01,291 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 09:46:01,293 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 09:46:01,296 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 09:46:01,303 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 09:46:01,356 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 09:46:01,356 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 09:46:01,367 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 09:46:01,367 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 09:46:01,395 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 09:46:01,395 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 09:46:01,404 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 09:46:01,404 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 09:46:01,430 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 09:46:01,430 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 09:46:01,435 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 09:46:01,435 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 09:46:01,439 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 09:46:01,439 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet6=0} Honda state: {ULTIMATE.start_main_#t~nondet6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:46:01,466 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 09:46:01,466 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 09:46:01,493 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 09:46:01,493 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~j~0=0, ULTIMATE.start_main_~bn~0=0} Honda state: {ULTIMATE.start_main_~j~0=0, ULTIMATE.start_main_~bn~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:46:01,498 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 09:46:01,498 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:46:01,546 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 09:46:01,546 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 09:46:02,013 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 09:46:02,015 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 09:46:02,015 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 09:46:02,016 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 09:46:02,016 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 09:46:02,016 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 09:46:02,016 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 09:46:02,016 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 09:46:02,016 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 09:46:02,016 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 09:46:02,016 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 09:46:02,017 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 09:46:02,019 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 09:46:02,022 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 09:46:02,024 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 09:46:02,027 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 09:46:02,029 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 09:46:02,034 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:46:02,085 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 09:46:02,085 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 09:46:02,086 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 09:46:02,086 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 09:46:02,087 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 09:46:02,087 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 09:46:02,087 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 09:46:02,088 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 09:46:02,088 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 09:46:02,092 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 09:46:02,092 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 09:46:02,092 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 09:46:02,093 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 09:46:02,093 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 09:46:02,093 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 09:46:02,093 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 09:46:02,093 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 09:46:02,093 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 09:46:02,094 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 09:46:02,095 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 09:46:02,095 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 09:46:02,095 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 09:46:02,096 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 09:46:02,096 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 09:46:02,097 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 09:46:02,097 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 09:46:02,101 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 09:46:02,101 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 09:46:02,102 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 09:46:02,102 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 09:46:02,102 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 09:46:02,102 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 09:46:02,102 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 09:46:02,103 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 09:46:02,103 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 09:46:02,104 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 09:46:02,104 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 09:46:02,105 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 09:46:02,105 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 09:46:02,105 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 09:46:02,105 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 09:46:02,105 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 09:46:02,106 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 09:46:02,106 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 09:46:02,108 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 09:46:02,112 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-06-22 09:46:02,112 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 09:46:02,113 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 09:46:02,113 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 09:46:02,113 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 09:46:02,113 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~an~0, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~an~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2020-06-22 09:46:02,114 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 09:46:02,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 09:46:02,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 09:46:02,145 INFO L256 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 09:46:02,145 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 09:46:02,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 09:46:02,151 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 09:46:02,151 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 09:46:02,167 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 09:46:02,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 09:46:02,172 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 09:46:02,172 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 09:46:02,196 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-06-22 09:46:02,196 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 09:46:02,196 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 21 states and 59 transitions. cyclomatic complexity: 41 Second operand 4 states. [2020-06-22 09:46:02,301 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 21 states and 59 transitions. cyclomatic complexity: 41. Second operand 4 states. Result 161 states and 427 transitions. Complement of second has 21 states. [2020-06-22 09:46:02,302 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-06-22 09:46:02,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-06-22 09:46:02,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 61 transitions. [2020-06-22 09:46:02,303 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 61 transitions. Stem has 2 letters. Loop has 3 letters. [2020-06-22 09:46:02,304 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 09:46:02,304 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 61 transitions. Stem has 5 letters. Loop has 3 letters. [2020-06-22 09:46:02,304 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 09:46:02,304 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 61 transitions. Stem has 2 letters. Loop has 6 letters. [2020-06-22 09:46:02,305 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 09:46:02,307 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 161 states and 427 transitions. [2020-06-22 09:46:02,315 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 9 [2020-06-22 09:46:02,316 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 161 states to 21 states and 51 transitions. [2020-06-22 09:46:02,316 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2020-06-22 09:46:02,317 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2020-06-22 09:46:02,317 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 51 transitions. [2020-06-22 09:46:02,317 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 09:46:02,317 INFO L706 BuchiCegarLoop]: Abstraction has 21 states and 51 transitions. [2020-06-22 09:46:02,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 51 transitions. [2020-06-22 09:46:02,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-06-22 09:46:02,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-06-22 09:46:02,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 51 transitions. [2020-06-22 09:46:02,320 INFO L729 BuchiCegarLoop]: Abstraction has 21 states and 51 transitions. [2020-06-22 09:46:02,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-06-22 09:46:02,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-06-22 09:46:02,324 INFO L87 Difference]: Start difference. First operand 21 states and 51 transitions. Second operand 4 states. [2020-06-22 09:46:02,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 09:46:02,378 INFO L93 Difference]: Finished difference Result 41 states and 77 transitions. [2020-06-22 09:46:02,378 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-06-22 09:46:02,381 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 41 states and 77 transitions. [2020-06-22 09:46:02,382 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-06-22 09:46:02,383 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 41 states to 17 states and 33 transitions. [2020-06-22 09:46:02,383 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2020-06-22 09:46:02,383 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2020-06-22 09:46:02,383 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 33 transitions. [2020-06-22 09:46:02,383 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 09:46:02,384 INFO L706 BuchiCegarLoop]: Abstraction has 17 states and 33 transitions. [2020-06-22 09:46:02,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 33 transitions. [2020-06-22 09:46:02,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2020-06-22 09:46:02,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-06-22 09:46:02,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 33 transitions. [2020-06-22 09:46:02,386 INFO L729 BuchiCegarLoop]: Abstraction has 17 states and 33 transitions. [2020-06-22 09:46:02,386 INFO L609 BuchiCegarLoop]: Abstraction has 17 states and 33 transitions. [2020-06-22 09:46:02,386 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2020-06-22 09:46:02,386 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 33 transitions. [2020-06-22 09:46:02,386 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-06-22 09:46:02,387 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 09:46:02,387 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 09:46:02,387 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 09:46:02,387 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 09:46:02,387 INFO L794 eck$LassoCheckResult]: Stem: 394#ULTIMATE.startENTRY [40] ULTIMATE.startENTRY-->L32-2: Formula: (and (= v_ULTIMATE.start_main_~tk~0_1 |v_ULTIMATE.start_main_#t~nondet5_4|) (= v_ULTIMATE.start_main_~j~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~an~0_1 |v_ULTIMATE.start_main_#t~nondet3_4|) (= v_ULTIMATE.start_main_~bn~0_1 |v_ULTIMATE.start_main_#t~nondet4_4|) (= v_ULTIMATE.start_main_~k~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|) (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_1, 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_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_#t~nondet8=|v_ULTIMATE.start_main_#t~nondet8_1|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_1|, ULTIMATE.start_main_#t~nondet7=|v_ULTIMATE.start_main_#t~nondet7_1|, ULTIMATE.start_main_~tk~0=v_ULTIMATE.start_main_~tk~0_1, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_1, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet4_4|, |v_ULTIMATE.start_main_#t~nondet3_4|, |v_ULTIMATE.start_main_#t~nondet5_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_~k~0, 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_#t~nondet3, ULTIMATE.start_main_#t~nondet8, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_#t~nondet6, ULTIMATE.start_main_#t~nondet7, ULTIMATE.start_main_~tk~0, ULTIMATE.start_main_~j~0, ULTIMATE.start_main_~bn~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~an~0] 395#L32-2 [60] L32-2-->L22: Formula: (and (<= (+ v_ULTIMATE.start_main_~tk~0_7 1) v_ULTIMATE.start_main_~k~0_7) (<= v_ULTIMATE.start_main_~i~0_7 v_ULTIMATE.start_main_~an~0_7) (<= v_ULTIMATE.start_main_~j~0_7 v_ULTIMATE.start_main_~bn~0_7)) InVars {ULTIMATE.start_main_~tk~0=v_ULTIMATE.start_main_~tk~0_7, ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_7, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_7, ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} OutVars{ULTIMATE.start_main_~tk~0=v_ULTIMATE.start_main_~tk~0_7, ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_7, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_7, ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} AuxVars[] AssignedVars[] 400#L22 [2020-06-22 09:46:02,388 INFO L796 eck$LassoCheckResult]: Loop: 400#L22 [43] L22-->L23: Formula: (and (<= v_ULTIMATE.start_main_~i~0_8 v_ULTIMATE.start_main_~an~0_8) (<= v_ULTIMATE.start_main_~j~0_8 v_ULTIMATE.start_main_~bn~0_8)) InVars {ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_8, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_8, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_8} OutVars{ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_8, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_8, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_8} AuxVars[] AssignedVars[] 401#L23 [47] L23-->L32-2: Formula: (and (= 0 |v_ULTIMATE.start_main_#t~nondet6_5|) (= v_ULTIMATE.start_main_~i~0_9 (+ v_ULTIMATE.start_main_~i~0_10 1))) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10, ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_5|} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9, ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0, ULTIMATE.start_main_#t~nondet6] 397#L32-2 [60] L32-2-->L22: Formula: (and (<= (+ v_ULTIMATE.start_main_~tk~0_7 1) v_ULTIMATE.start_main_~k~0_7) (<= v_ULTIMATE.start_main_~i~0_7 v_ULTIMATE.start_main_~an~0_7) (<= v_ULTIMATE.start_main_~j~0_7 v_ULTIMATE.start_main_~bn~0_7)) InVars {ULTIMATE.start_main_~tk~0=v_ULTIMATE.start_main_~tk~0_7, ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_7, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_7, ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} OutVars{ULTIMATE.start_main_~tk~0=v_ULTIMATE.start_main_~tk~0_7, ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_7, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_7, ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} AuxVars[] AssignedVars[] 400#L22 [2020-06-22 09:46:02,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 09:46:02,388 INFO L82 PathProgramCache]: Analyzing trace with hash 2261, now seen corresponding path program 1 times [2020-06-22 09:46:02,388 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 09:46:02,388 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 09:46:02,390 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:46:02,391 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 09:46:02,391 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:46:02,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:46:02,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:46:02,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 09:46:02,400 INFO L82 PathProgramCache]: Analyzing trace with hash 72631, now seen corresponding path program 2 times [2020-06-22 09:46:02,400 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 09:46:02,400 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 09:46:02,401 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:46:02,401 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 09:46:02,401 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:46:02,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:46:02,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:46:02,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 09:46:02,406 INFO L82 PathProgramCache]: Analyzing trace with hash 67400291, now seen corresponding path program 1 times [2020-06-22 09:46:02,406 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 09:46:02,406 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 09:46:02,407 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:46:02,407 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 09:46:02,407 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:46:02,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:46:02,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:46:02,448 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 09:46:02,449 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 09:46:02,449 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 09:46:02,449 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 09:46:02,449 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 09:46:02,449 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:46:02,449 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 09:46:02,449 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 09:46:02,449 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-06-22 09:46:02,449 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 09:46:02,450 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 09:46:02,451 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 09:46:02,454 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 09:46:02,456 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:46:02,458 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:46:02,460 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:46:02,463 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 09:46:02,506 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 09:46:02,506 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 14 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 14 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:46:02,510 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 09:46:02,510 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 09:46:02,536 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 09:46:02,536 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~tk~0=0, ULTIMATE.start_main_~k~0=1} Honda state: {ULTIMATE.start_main_~tk~0=0, ULTIMATE.start_main_~k~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:46:02,541 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 09:46:02,541 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 09:46:02,567 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 09:46:02,567 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~j~0=0, ULTIMATE.start_main_~bn~0=0} Honda state: {ULTIMATE.start_main_~j~0=0, ULTIMATE.start_main_~bn~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:46:02,571 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 09:46:02,571 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 09:46:02,597 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 09:46:02,598 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:46:02,602 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 09:46:02,602 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 09:46:02,605 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 09:46:02,605 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet6=0} Honda state: {ULTIMATE.start_main_#t~nondet6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:46:02,631 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 09:46:02,631 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 09:46:02,658 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 09:46:02,658 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_5=0} Honda state: {v_rep~unnamed0~0~false_5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:46:02,662 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 09:46:02,662 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:46:02,692 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 09:46:02,693 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 09:46:03,146 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 09:46:03,148 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 09:46:03,148 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 09:46:03,148 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 09:46:03,148 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 09:46:03,149 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 09:46:03,149 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 09:46:03,149 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 09:46:03,149 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 09:46:03,149 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-06-22 09:46:03,149 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 09:46:03,149 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 09:46:03,150 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 09:46:03,154 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 09:46:03,156 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 09:46:03,159 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 09:46:03,161 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 09:46:03,166 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 09:46:03,209 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 09:46:03,209 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 09:46:03,210 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 09:46:03,210 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 09:46:03,210 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 09:46:03,211 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 09:46:03,211 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 09:46:03,211 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 09:46:03,211 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 09:46:03,211 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 09:46:03,213 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 09:46:03,213 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 09:46:03,213 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 09:46:03,213 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 09:46:03,214 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 09:46:03,214 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 09:46:03,214 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 09:46:03,214 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 09:46:03,214 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 09:46:03,215 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 09:46:03,216 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 09:46:03,223 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 09:46:03,223 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 09:46:03,223 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 09:46:03,223 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 09:46:03,223 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 09:46:03,224 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 09:46:03,224 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 09:46:03,225 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 09:46:03,226 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 09:46:03,226 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 09:46:03,227 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 09:46:03,227 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 09:46:03,227 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 09:46:03,228 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 09:46:03,229 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 09:46:03,232 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 09:46:03,233 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 09:46:03,233 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 09:46:03,233 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 09:46:03,234 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 09:46:03,234 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 09:46:03,234 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 09:46:03,234 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 09:46:03,234 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 09:46:03,237 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 09:46:03,241 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-06-22 09:46:03,241 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 09:46:03,242 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 09:46:03,242 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 09:46:03,242 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 09:46:03,242 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~an~0, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~an~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2020-06-22 09:46:03,243 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 09:46:03,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 09:46:03,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 09:46:03,262 INFO L256 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 09:46:03,263 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 09:46:03,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 09:46:03,267 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 09:46:03,268 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 09:46:03,275 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 09:46:03,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 09:46:03,280 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 09:46:03,280 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 09:46:03,308 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-06-22 09:46:03,308 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 09:46:03,308 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 17 states and 33 transitions. cyclomatic complexity: 19 Second operand 4 states. [2020-06-22 09:46:03,364 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 17 states and 33 transitions. cyclomatic complexity: 19. Second operand 4 states. Result 60 states and 109 transitions. Complement of second has 8 states. [2020-06-22 09:46:03,364 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 2 accepting loop states [2020-06-22 09:46:03,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-06-22 09:46:03,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 25 transitions. [2020-06-22 09:46:03,365 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 2 letters. Loop has 3 letters. [2020-06-22 09:46:03,365 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 09:46:03,366 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 5 letters. Loop has 3 letters. [2020-06-22 09:46:03,366 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 09:46:03,366 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 2 letters. Loop has 6 letters. [2020-06-22 09:46:03,367 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 09:46:03,368 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 60 states and 109 transitions. [2020-06-22 09:46:03,370 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-06-22 09:46:03,370 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 60 states to 17 states and 25 transitions. [2020-06-22 09:46:03,370 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2020-06-22 09:46:03,371 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2020-06-22 09:46:03,371 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 25 transitions. [2020-06-22 09:46:03,371 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 09:46:03,371 INFO L706 BuchiCegarLoop]: Abstraction has 17 states and 25 transitions. [2020-06-22 09:46:03,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 25 transitions. [2020-06-22 09:46:03,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2020-06-22 09:46:03,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-06-22 09:46:03,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 25 transitions. [2020-06-22 09:46:03,373 INFO L729 BuchiCegarLoop]: Abstraction has 17 states and 25 transitions. [2020-06-22 09:46:03,373 INFO L609 BuchiCegarLoop]: Abstraction has 17 states and 25 transitions. [2020-06-22 09:46:03,373 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2020-06-22 09:46:03,373 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 25 transitions. [2020-06-22 09:46:03,374 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-06-22 09:46:03,374 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 09:46:03,374 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 09:46:03,374 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 09:46:03,374 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 09:46:03,374 INFO L794 eck$LassoCheckResult]: Stem: 526#ULTIMATE.startENTRY [40] ULTIMATE.startENTRY-->L32-2: Formula: (and (= v_ULTIMATE.start_main_~tk~0_1 |v_ULTIMATE.start_main_#t~nondet5_4|) (= v_ULTIMATE.start_main_~j~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~an~0_1 |v_ULTIMATE.start_main_#t~nondet3_4|) (= v_ULTIMATE.start_main_~bn~0_1 |v_ULTIMATE.start_main_#t~nondet4_4|) (= v_ULTIMATE.start_main_~k~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|) (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_1, 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_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_#t~nondet8=|v_ULTIMATE.start_main_#t~nondet8_1|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_1|, ULTIMATE.start_main_#t~nondet7=|v_ULTIMATE.start_main_#t~nondet7_1|, ULTIMATE.start_main_~tk~0=v_ULTIMATE.start_main_~tk~0_1, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_1, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet4_4|, |v_ULTIMATE.start_main_#t~nondet3_4|, |v_ULTIMATE.start_main_#t~nondet5_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_~k~0, 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_#t~nondet3, ULTIMATE.start_main_#t~nondet8, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_#t~nondet6, ULTIMATE.start_main_#t~nondet7, ULTIMATE.start_main_~tk~0, ULTIMATE.start_main_~j~0, ULTIMATE.start_main_~bn~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~an~0] 527#L32-2 [61] L32-2-->L22: Formula: (and (<= (+ v_ULTIMATE.start_main_~tk~0_7 1) v_ULTIMATE.start_main_~k~0_7) (<= v_ULTIMATE.start_main_~bn~0_7 v_ULTIMATE.start_main_~j~0_7) (<= v_ULTIMATE.start_main_~i~0_7 v_ULTIMATE.start_main_~an~0_7)) InVars {ULTIMATE.start_main_~tk~0=v_ULTIMATE.start_main_~tk~0_7, ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_7, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_7, ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} OutVars{ULTIMATE.start_main_~tk~0=v_ULTIMATE.start_main_~tk~0_7, ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_7, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_7, ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} AuxVars[] AssignedVars[] 538#L22 [2020-06-22 09:46:03,375 INFO L796 eck$LassoCheckResult]: Loop: 538#L22 [67] L22-->L30: Formula: (> v_ULTIMATE.start_main_~j~0_11 v_ULTIMATE.start_main_~bn~0_9) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_11, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_9} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_11, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_9} AuxVars[] AssignedVars[] 533#L30 [53] L30-->L32-2: Formula: (and (<= v_ULTIMATE.start_main_~i~0_13 v_ULTIMATE.start_main_~an~0_10) (<= v_ULTIMATE.start_main_~bn~0_10 v_ULTIMATE.start_main_~j~0_12) (= v_ULTIMATE.start_main_~i~0_12 (+ v_ULTIMATE.start_main_~i~0_13 1))) InVars {ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_13, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_12, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_10} OutVars{ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_12, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_12, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_10} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 534#L32-2 [61] L32-2-->L22: Formula: (and (<= (+ v_ULTIMATE.start_main_~tk~0_7 1) v_ULTIMATE.start_main_~k~0_7) (<= v_ULTIMATE.start_main_~bn~0_7 v_ULTIMATE.start_main_~j~0_7) (<= v_ULTIMATE.start_main_~i~0_7 v_ULTIMATE.start_main_~an~0_7)) InVars {ULTIMATE.start_main_~tk~0=v_ULTIMATE.start_main_~tk~0_7, ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_7, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_7, ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} OutVars{ULTIMATE.start_main_~tk~0=v_ULTIMATE.start_main_~tk~0_7, ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_7, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_7, ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} AuxVars[] AssignedVars[] 538#L22 [2020-06-22 09:46:03,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 09:46:03,375 INFO L82 PathProgramCache]: Analyzing trace with hash 2262, now seen corresponding path program 1 times [2020-06-22 09:46:03,375 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 09:46:03,375 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 09:46:03,377 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:46:03,377 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 09:46:03,377 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:46:03,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:46:03,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:46:03,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 09:46:03,384 INFO L82 PathProgramCache]: Analyzing trace with hash 95882, now seen corresponding path program 1 times [2020-06-22 09:46:03,384 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 09:46:03,385 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 09:46:03,385 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:46:03,386 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 09:46:03,386 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:46:03,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:46:03,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:46:03,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 09:46:03,390 INFO L82 PathProgramCache]: Analyzing trace with hash 67453333, now seen corresponding path program 1 times [2020-06-22 09:46:03,390 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 09:46:03,390 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 09:46:03,391 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:46:03,391 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 09:46:03,392 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:46:03,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:46:03,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:46:03,421 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 09:46:03,422 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 09:46:03,422 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 09:46:03,422 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 09:46:03,422 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 09:46:03,422 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:46:03,422 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 09:46:03,422 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 09:46:03,422 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2020-06-22 09:46:03,423 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 09:46:03,423 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 09:46:03,424 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:46:03,426 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:46:03,429 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 09:46:03,434 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 09:46:03,436 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 09:46:03,478 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 09:46:03,478 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 21 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 21 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:46:03,482 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 09:46:03,482 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 09:46:03,510 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 09:46:03,510 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~tk~0=0, ULTIMATE.start_main_~k~0=1} Honda state: {ULTIMATE.start_main_~tk~0=0, ULTIMATE.start_main_~k~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 22 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 22 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:46:03,516 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 09:46:03,516 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 09:46:03,543 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 09:46:03,543 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~j~0=1, ULTIMATE.start_main_~bn~0=0} Honda state: {ULTIMATE.start_main_~j~0=1, ULTIMATE.start_main_~bn~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:46:03,547 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 09:46:03,547 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:46:03,576 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 09:46:03,576 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 09:46:04,039 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 09:46:04,041 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 09:46:04,041 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 09:46:04,042 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 09:46:04,042 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 09:46:04,042 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 09:46:04,042 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 09:46:04,042 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 09:46:04,042 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 09:46:04,042 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2020-06-22 09:46:04,042 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 09:46:04,042 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 09:46:04,044 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 09:46:04,047 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 09:46:04,051 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 09:46:04,056 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 09:46:04,059 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 09:46:04,093 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 09:46:04,093 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 09:46:04,094 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 09:46:04,094 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 09:46:04,094 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 09:46:04,095 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 09:46:04,095 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 09:46:04,095 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 09:46:04,095 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 09:46:04,095 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 09:46:04,096 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 09:46:04,097 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 09:46:04,097 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 09:46:04,097 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 09:46:04,097 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 09:46:04,097 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 09:46:04,097 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 09:46:04,098 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 09:46:04,098 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 09:46:04,099 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 09:46:04,099 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 09:46:04,099 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 09:46:04,099 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 09:46:04,100 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 09:46:04,100 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 09:46:04,100 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 09:46:04,100 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 09:46:04,100 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 09:46:04,102 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 09:46:04,107 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-06-22 09:46:04,108 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 09:46:04,108 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 09:46:04,108 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 09:46:04,108 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 09:46:04,109 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~an~0, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~an~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2020-06-22 09:46:04,109 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 09:46:04,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 09:46:04,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 09:46:04,127 INFO L256 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 09:46:04,127 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 09:46:04,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 09:46:04,131 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 09:46:04,131 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 09:46:04,138 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 09:46:04,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 09:46:04,142 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 09:46:04,142 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 09:46:04,163 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-06-22 09:46:04,163 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 09:46:04,163 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 17 states and 25 transitions. cyclomatic complexity: 11 Second operand 4 states. [2020-06-22 09:46:04,209 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 17 states and 25 transitions. cyclomatic complexity: 11. Second operand 4 states. Result 41 states and 64 transitions. Complement of second has 8 states. [2020-06-22 09:46:04,209 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 2 accepting loop states [2020-06-22 09:46:04,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-06-22 09:46:04,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 23 transitions. [2020-06-22 09:46:04,210 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 2 letters. Loop has 3 letters. [2020-06-22 09:46:04,210 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 09:46:04,211 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 5 letters. Loop has 3 letters. [2020-06-22 09:46:04,211 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 09:46:04,211 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 2 letters. Loop has 6 letters. [2020-06-22 09:46:04,212 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 09:46:04,213 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 41 states and 64 transitions. [2020-06-22 09:46:04,214 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 09:46:04,214 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 41 states to 0 states and 0 transitions. [2020-06-22 09:46:04,214 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-06-22 09:46:04,215 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-06-22 09:46:04,215 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-06-22 09:46:04,215 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 09:46:04,215 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 09:46:04,215 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 09:46:04,215 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 09:46:04,215 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2020-06-22 09:46:04,215 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-06-22 09:46:04,215 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 09:46:04,216 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-06-22 09:46:04,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 09:46:04 BasicIcfg [2020-06-22 09:46:04,222 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-22 09:46:04,223 INFO L168 Benchmark]: Toolchain (without parser) took 8206.77 ms. Allocated memory was 649.6 MB in the beginning and 737.7 MB in the end (delta: 88.1 MB). Free memory was 565.9 MB in the beginning and 452.4 MB in the end (delta: 113.5 MB). Peak memory consumption was 201.6 MB. Max. memory is 50.3 GB. [2020-06-22 09:46:04,224 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 585.7 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 09:46:04,225 INFO L168 Benchmark]: CACSL2BoogieTranslator took 291.04 ms. Allocated memory was 649.6 MB in the beginning and 666.4 MB in the end (delta: 16.8 MB). Free memory was 565.9 MB in the beginning and 634.0 MB in the end (delta: -68.1 MB). Peak memory consumption was 32.1 MB. Max. memory is 50.3 GB. [2020-06-22 09:46:04,225 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.12 ms. Allocated memory is still 666.4 MB. Free memory was 634.0 MB in the beginning and 631.2 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 50.3 GB. [2020-06-22 09:46:04,226 INFO L168 Benchmark]: Boogie Preprocessor took 20.38 ms. Allocated memory is still 666.4 MB. Free memory was 631.2 MB in the beginning and 629.0 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 50.3 GB. [2020-06-22 09:46:04,226 INFO L168 Benchmark]: RCFGBuilder took 224.79 ms. Allocated memory is still 666.4 MB. Free memory was 629.0 MB in the beginning and 613.4 MB in the end (delta: 15.6 MB). Peak memory consumption was 15.6 MB. Max. memory is 50.3 GB. [2020-06-22 09:46:04,227 INFO L168 Benchmark]: BlockEncodingV2 took 83.35 ms. Allocated memory is still 666.4 MB. Free memory was 613.4 MB in the beginning and 606.9 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 50.3 GB. [2020-06-22 09:46:04,227 INFO L168 Benchmark]: TraceAbstraction took 151.30 ms. Allocated memory is still 666.4 MB. Free memory was 606.9 MB in the beginning and 597.1 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 50.3 GB. [2020-06-22 09:46:04,228 INFO L168 Benchmark]: BuchiAutomizer took 7391.90 ms. Allocated memory was 666.4 MB in the beginning and 737.7 MB in the end (delta: 71.3 MB). Free memory was 597.1 MB in the beginning and 452.4 MB in the end (delta: 144.8 MB). Peak memory consumption was 216.1 MB. Max. memory is 50.3 GB. [2020-06-22 09:46:04,232 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 10 locations, 15 edges - StatisticsResult: Encoded RCFG 6 locations, 16 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 585.7 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 291.04 ms. Allocated memory was 649.6 MB in the beginning and 666.4 MB in the end (delta: 16.8 MB). Free memory was 565.9 MB in the beginning and 634.0 MB in the end (delta: -68.1 MB). Peak memory consumption was 32.1 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 39.12 ms. Allocated memory is still 666.4 MB. Free memory was 634.0 MB in the beginning and 631.2 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 20.38 ms. Allocated memory is still 666.4 MB. Free memory was 631.2 MB in the beginning and 629.0 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 50.3 GB. * RCFGBuilder took 224.79 ms. Allocated memory is still 666.4 MB. Free memory was 629.0 MB in the beginning and 613.4 MB in the end (delta: 15.6 MB). Peak memory consumption was 15.6 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 83.35 ms. Allocated memory is still 666.4 MB. Free memory was 613.4 MB in the beginning and 606.9 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 50.3 GB. * TraceAbstraction took 151.30 ms. Allocated memory is still 666.4 MB. Free memory was 606.9 MB in the beginning and 597.1 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 7391.90 ms. Allocated memory was 666.4 MB in the beginning and 737.7 MB in the end (delta: 71.3 MB). Free memory was 597.1 MB in the beginning and 452.4 MB in the end (delta: 144.8 MB). Peak memory consumption was 216.1 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 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=6occurred 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 5 terminating modules (1 trivial, 0 deterministic, 4 nondeterministic). One nondeterministic module has 2-nested ranking function (if -2 * tk > 0 then 1 else 0), (if -2 * tk > 0 then -2 * tk else 2 * bn + -2 * j + 1) and consists of 5 locations. One nondeterministic module has affine ranking function an + -1 * i and consists of 5 locations. One nondeterministic module has affine ranking function an + -1 * i and consists of 4 locations. One nondeterministic module has affine ranking function an + -1 * i and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 7.3s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 5.8s. Construction of modules took 0.2s. Büchi inclusion checks took 1.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 21 states and ocurred in iteration 1. Nontrivial modules had stage [4, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 23 SDtfs, 255 SDslu, 42 SDs, 0 SdLazy, 249 SolverSat, 48 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT3 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital21 mio100 ax156 hnf100 lsp36 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq161 hnf93 smp100 dnf100 smp100 tf111 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 8ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 3 MotzkinApplications: 9 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 15 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 4.4s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-06-22 09:45:52.423 ----------------------------------------------- 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 09:46:04.463 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check