YES Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-22 07:46:56,488 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-22 07:46:56,490 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-22 07:46:56,502 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-22 07:46:56,502 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-22 07:46:56,503 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-22 07:46:56,504 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-22 07:46:56,506 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-22 07:46:56,507 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-22 07:46:56,508 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-22 07:46:56,509 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-22 07:46:56,509 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-22 07:46:56,510 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-22 07:46:56,511 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-22 07:46:56,512 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-22 07:46:56,513 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-22 07:46:56,513 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-22 07:46:56,515 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-22 07:46:56,517 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-22 07:46:56,518 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-22 07:46:56,519 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-22 07:46:56,521 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-22 07:46:56,523 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-22 07:46:56,523 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-22 07:46:56,523 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-22 07:46:56,524 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-22 07:46:56,524 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-22 07:46:56,525 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-22 07:46:56,526 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-22 07:46:56,526 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-22 07:46:56,527 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-22 07:46:56,528 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-22 07:46:56,528 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-22 07:46:56,529 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-22 07:46:56,529 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-22 07:46:56,530 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-22 07:46:56,530 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-22 07:46:56,531 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-22 07:46:56,531 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-22 07:46:56,532 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-06-22 07:46:56,547 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-22 07:46:56,547 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-22 07:46:56,548 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-22 07:46:56,549 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-22 07:46:56,549 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-22 07:46:56,549 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-22 07:46:56,549 INFO L133 SettingsManager]: * Use SBE=true [2020-06-22 07:46:56,549 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-22 07:46:56,549 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-22 07:46:56,550 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-22 07:46:56,550 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-22 07:46:56,550 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-22 07:46:56,550 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-22 07:46:56,550 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-22 07:46:56,550 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:46:56,550 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-22 07:46:56,551 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-22 07:46:56,551 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-22 07:46:56,551 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-22 07:46:56,551 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-22 07:46:56,551 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-22 07:46:56,551 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-22 07:46:56,552 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-22 07:46:56,552 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-22 07:46:56,552 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 07:46:56,552 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-22 07:46:56,552 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-22 07:46:56,552 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-22 07:46:56,553 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-22 07:46:56,578 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-22 07:46:56,591 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-22 07:46:56,594 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-22 07:46:56,596 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-22 07:46:56,596 INFO L276 PluginConnector]: CDTParser initialized [2020-06-22 07:46:56,597 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 07:46:56,667 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/426587ccaa4a43858c71b7f61a219205/FLAG63dfc8b4d [2020-06-22 07:46:57,003 INFO L307 CDTParser]: Found 1 translation units. [2020-06-22 07:46:57,004 INFO L161 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 07:46:57,010 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/426587ccaa4a43858c71b7f61a219205/FLAG63dfc8b4d [2020-06-22 07:46:57,418 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/426587ccaa4a43858c71b7f61a219205 [2020-06-22 07:46:57,430 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-22 07:46:57,432 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-22 07:46:57,433 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-22 07:46:57,433 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-22 07:46:57,437 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-22 07:46:57,438 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 07:46:57" (1/1) ... [2020-06-22 07:46:57,441 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2769311d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:46:57, skipping insertion in model container [2020-06-22 07:46:57,442 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 07:46:57" (1/1) ... [2020-06-22 07:46:57,450 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-22 07:46:57,468 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-22 07:46:57,630 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 07:46:57,635 INFO L191 MainTranslator]: Completed pre-run [2020-06-22 07:46:57,653 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 07:46:57,727 INFO L195 MainTranslator]: Completed translation [2020-06-22 07:46:57,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:46:57 WrapperNode [2020-06-22 07:46:57,728 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-22 07:46:57,729 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-22 07:46:57,729 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-22 07:46:57,729 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-22 07:46:57,738 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:46:57" (1/1) ... [2020-06-22 07:46:57,744 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:46:57" (1/1) ... [2020-06-22 07:46:57,764 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-22 07:46:57,765 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-22 07:46:57,765 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-22 07:46:57,765 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-22 07:46:57,774 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:46:57" (1/1) ... [2020-06-22 07:46:57,775 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:46:57" (1/1) ... [2020-06-22 07:46:57,775 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:46:57" (1/1) ... [2020-06-22 07:46:57,775 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:46:57" (1/1) ... [2020-06-22 07:46:57,777 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:46:57" (1/1) ... [2020-06-22 07:46:57,782 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:46:57" (1/1) ... [2020-06-22 07:46:57,783 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:46:57" (1/1) ... [2020-06-22 07:46:57,784 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-22 07:46:57,785 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-22 07:46:57,785 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-22 07:46:57,785 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-22 07:46:57,786 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:46:57" (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 07:46:57,853 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-22 07:46:57,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-22 07:46:57,995 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-22 07:46:57,995 INFO L286 CfgBuilder]: Removed 7 assue(true) statements. [2020-06-22 07:46:57,997 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 07:46:57 BoogieIcfgContainer [2020-06-22 07:46:57,997 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-22 07:46:57,998 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-22 07:46:57,998 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-22 07:46:58,000 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-22 07:46:58,000 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 07:46:57" (1/1) ... [2020-06-22 07:46:58,015 INFO L313 BlockEncoder]: Initial Icfg 8 locations, 13 edges [2020-06-22 07:46:58,017 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-22 07:46:58,017 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-22 07:46:58,018 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-22 07:46:58,018 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-22 07:46:58,020 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-22 07:46:58,021 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-22 07:46:58,021 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-22 07:46:58,038 INFO L185 BlockEncoder]: Using Use SBE [2020-06-22 07:46:58,053 INFO L200 BlockEncoder]: SBE split 2 edges [2020-06-22 07:46:58,058 INFO L70 emoveInfeasibleEdges]: Removed 3 edges and 0 locations because of local infeasibility [2020-06-22 07:46:58,060 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 07:46:58,072 INFO L100 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2020-06-22 07:46:58,074 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-06-22 07:46:58,076 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 07:46:58,076 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 07:46:58,076 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-22 07:46:58,076 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 07:46:58,077 INFO L313 BlockEncoder]: Encoded RCFG 4 locations, 8 edges [2020-06-22 07:46:58,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 07:46:58 BasicIcfg [2020-06-22 07:46:58,077 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-22 07:46:58,078 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-22 07:46:58,079 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-22 07:46:58,083 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-22 07:46:58,083 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.06 07:46:57" (1/4) ... [2020-06-22 07:46:58,084 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dc93237 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 07:46:58, skipping insertion in model container [2020-06-22 07:46:58,084 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:46:57" (2/4) ... [2020-06-22 07:46:58,085 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dc93237 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 07:46:58, skipping insertion in model container [2020-06-22 07:46:58,085 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 07:46:57" (3/4) ... [2020-06-22 07:46:58,086 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dc93237 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 07:46:58, skipping insertion in model container [2020-06-22 07:46:58,086 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 07:46:58" (4/4) ... [2020-06-22 07:46:58,088 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 07:46:58,098 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-22 07:46:58,107 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-06-22 07:46:58,125 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-06-22 07:46:58,153 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 07:46:58,154 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-22 07:46:58,154 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-22 07:46:58,154 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 07:46:58,154 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 07:46:58,155 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 07:46:58,155 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-22 07:46:58,155 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 07:46:58,155 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-22 07:46:58,169 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states. [2020-06-22 07:46:58,175 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-06-22 07:46:58,178 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-06-22 07:46:58,235 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-06-22 07:46:58,235 INFO L451 ceAbstractionStarter]: At program point L13-2(lines 13 16) the Hoare annotation is: true [2020-06-22 07:46:58,236 INFO L451 ceAbstractionStarter]: At program point L21-2(lines 21 24) the Hoare annotation is: true [2020-06-22 07:46:58,236 INFO L448 ceAbstractionStarter]: For program point L21-3(lines 5 28) no Hoare annotation was computed. [2020-06-22 07:46:58,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 07:46:58 BasicIcfg [2020-06-22 07:46:58,245 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-22 07:46:58,246 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-22 07:46:58,246 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-22 07:46:58,249 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-22 07:46:58,250 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 07:46:58,250 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.06 07:46:57" (1/5) ... [2020-06-22 07:46:58,251 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3007114 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 07:46:58, skipping insertion in model container [2020-06-22 07:46:58,251 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 07:46:58,251 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:46:57" (2/5) ... [2020-06-22 07:46:58,251 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3007114 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 07:46:58, skipping insertion in model container [2020-06-22 07:46:58,252 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 07:46:58,252 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 07:46:57" (3/5) ... [2020-06-22 07:46:58,252 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3007114 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 07:46:58, skipping insertion in model container [2020-06-22 07:46:58,252 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 07:46:58,252 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 07:46:58" (4/5) ... [2020-06-22 07:46:58,253 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3007114 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 07:46:58, skipping insertion in model container [2020-06-22 07:46:58,253 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 07:46:58,253 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 07:46:58" (5/5) ... [2020-06-22 07:46:58,254 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 07:46:58,281 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 07:46:58,282 INFO L374 BuchiCegarLoop]: Interprodecural is true [2020-06-22 07:46:58,282 INFO L375 BuchiCegarLoop]: Hoare is true [2020-06-22 07:46:58,282 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 07:46:58,282 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 07:46:58,282 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 07:46:58,282 INFO L379 BuchiCegarLoop]: Difference is false [2020-06-22 07:46:58,282 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 07:46:58,283 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-06-22 07:46:58,286 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states. [2020-06-22 07:46:58,303 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 3 [2020-06-22 07:46:58,303 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 07:46:58,304 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 07:46:58,309 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 07:46:58,309 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-06-22 07:46:58,309 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2020-06-22 07:46:58,309 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states. [2020-06-22 07:46:58,310 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 3 [2020-06-22 07:46:58,310 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 07:46:58,310 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 07:46:58,310 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 07:46:58,311 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-06-22 07:46:58,316 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [41] ULTIMATE.startENTRY-->L13-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~res~0_1 0) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~res~0=v_ULTIMATE.start_main_~res~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~res~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 4#L13-2true [2020-06-22 07:46:58,316 INFO L796 eck$LassoCheckResult]: Loop: 4#L13-2true [44] L13-2-->L13-2: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_8) (= v_ULTIMATE.start_main_~y~0_7 (+ v_ULTIMATE.start_main_~y~0_8 (- 1))) (= v_ULTIMATE.start_main_~x~0_7 (+ v_ULTIMATE.start_main_~x~0_8 (- 1))) (< 0 v_ULTIMATE.start_main_~x~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 4#L13-2true [2020-06-22 07:46:58,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:46:58,322 INFO L82 PathProgramCache]: Analyzing trace with hash 72, now seen corresponding path program 1 times [2020-06-22 07:46:58,324 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 07:46:58,325 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 07:46:58,353 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:46:58,353 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 07:46:58,353 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:46:58,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:46:58,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:46:58,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:46:58,394 INFO L82 PathProgramCache]: Analyzing trace with hash 75, now seen corresponding path program 1 times [2020-06-22 07:46:58,394 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 07:46:58,395 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 07:46:58,396 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:46:58,396 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 07:46:58,397 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:46:58,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:46:58,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:46:58,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:46:58,408 INFO L82 PathProgramCache]: Analyzing trace with hash 2276, now seen corresponding path program 1 times [2020-06-22 07:46:58,408 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 07:46:58,408 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 07:46:58,410 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:46:58,410 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 07:46:58,410 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:46:58,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:46:58,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:46:58,462 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 07:46:58,463 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 07:46:58,463 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 07:46:58,463 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 07:46:58,464 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 07:46:58,464 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:46:58,464 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 07:46:58,464 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 07:46:58,464 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 07:46:58,464 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 07:46:58,465 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 07:46:58,484 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 07:46:58,495 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 07:46:58,500 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 07:46:58,510 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 07:46:58,627 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 07:46:58,627 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 07:46:58,635 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 07:46:58,636 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 07:46:58,671 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 07:46:58,671 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:46:58,680 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 07:46:58,680 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 07:46:58,708 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 07:46:58,708 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:46:58,717 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 07:46:58,717 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:46:58,750 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 07:46:58,750 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 07:46:58,780 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 07:46:58,783 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 07:46:58,783 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 07:46:58,783 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 07:46:58,783 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 07:46:58,783 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 07:46:58,784 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 07:46:58,784 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 07:46:58,784 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 07:46:58,784 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 07:46:58,784 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 07:46:58,784 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 07:46:58,786 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 07:46:58,790 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 07:46:58,793 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 07:46:58,801 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 07:46:58,873 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 07:46:58,879 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 07:46:58,880 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 07:46:58,882 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 07:46:58,882 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 07:46:58,882 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 07:46:58,883 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 07:46:58,887 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 07:46:58,887 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 07:46:58,896 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 07:46:58,896 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 07:46:58,897 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 07:46:58,897 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 07:46:58,898 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 07:46:58,898 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 07:46:58,900 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 07:46:58,900 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 07:46:58,909 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 07:46:58,909 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 07:46:58,910 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 07:46:58,910 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 07:46:58,910 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 07:46:58,911 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 07:46:58,911 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 07:46:58,911 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 07:46:58,912 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 07:46:58,917 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 07:46:58,921 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 07:46:58,921 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 07:46:58,924 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 07:46:58,924 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 07:46:58,925 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 07:46:58,925 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2020-06-22 07:46:58,927 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 07:46:58,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:46:58,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 07:46:58,959 INFO L256 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 07:46:58,960 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 07:46:58,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 07:46:58,970 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 07:46:58,970 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 07:46:58,971 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 07:46:58,984 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization [2020-06-22 07:46:58,989 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2020-06-22 07:46:58,990 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 4 states. Second operand 2 states. [2020-06-22 07:46:59,032 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 4 states.. Second operand 2 states. Result 9 states and 24 transitions. Complement of second has 4 states. [2020-06-22 07:46:59,033 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-06-22 07:46:59,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-06-22 07:46:59,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 19 transitions. [2020-06-22 07:46:59,037 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 19 transitions. Stem has 1 letters. Loop has 1 letters. [2020-06-22 07:46:59,038 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 07:46:59,039 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 19 transitions. Stem has 2 letters. Loop has 1 letters. [2020-06-22 07:46:59,039 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 07:46:59,039 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 19 transitions. Stem has 1 letters. Loop has 2 letters. [2020-06-22 07:46:59,039 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 07:46:59,046 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 24 transitions. [2020-06-22 07:46:59,047 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 07:46:59,053 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 9 states and 24 transitions. [2020-06-22 07:46:59,054 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2020-06-22 07:46:59,054 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2020-06-22 07:46:59,055 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 24 transitions. [2020-06-22 07:46:59,055 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 07:46:59,055 INFO L706 BuchiCegarLoop]: Abstraction has 9 states and 24 transitions. [2020-06-22 07:46:59,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 24 transitions. [2020-06-22 07:46:59,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2020-06-22 07:46:59,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-06-22 07:46:59,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 23 transitions. [2020-06-22 07:46:59,090 INFO L729 BuchiCegarLoop]: Abstraction has 8 states and 23 transitions. [2020-06-22 07:46:59,090 INFO L609 BuchiCegarLoop]: Abstraction has 8 states and 23 transitions. [2020-06-22 07:46:59,090 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2020-06-22 07:46:59,090 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 23 transitions. [2020-06-22 07:46:59,091 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 07:46:59,091 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 07:46:59,091 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 07:46:59,092 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 07:46:59,092 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 07:46:59,092 INFO L794 eck$LassoCheckResult]: Stem: 41#ULTIMATE.startENTRY [41] ULTIMATE.startENTRY-->L13-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~res~0_1 0) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~res~0=v_ULTIMATE.start_main_~res~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~res~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 42#L13-2 [58] L13-2-->L21-3: Formula: (>= 0 v_ULTIMATE.start_main_~x~0_6) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} AuxVars[] AssignedVars[] 44#L21-3 [2020-06-22 07:46:59,093 INFO L796 eck$LassoCheckResult]: Loop: 44#L21-3 [49] L21-3-->L21-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_9 (+ v_ULTIMATE.start_main_~y~0_10 1)) (= v_ULTIMATE.start_main_~res~0_6 (+ v_ULTIMATE.start_main_~res~0_7 1)) (< 0 v_ULTIMATE.start_main_~x~0_10)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~res~0=v_ULTIMATE.start_main_~res~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~res~0=v_ULTIMATE.start_main_~res~0_6, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} AuxVars[] AssignedVars[ULTIMATE.start_main_~res~0, ULTIMATE.start_main_~y~0] 46#L21-2 [59] L21-2-->L21-3: Formula: (>= 0 v_ULTIMATE.start_main_~y~0_11) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11} AuxVars[] AssignedVars[] 44#L21-3 [2020-06-22 07:46:59,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:46:59,093 INFO L82 PathProgramCache]: Analyzing trace with hash 2290, now seen corresponding path program 1 times [2020-06-22 07:46:59,093 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 07:46:59,093 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 07:46:59,095 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:46:59,095 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 07:46:59,095 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:46:59,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:46:59,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:46:59,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:46:59,101 INFO L82 PathProgramCache]: Analyzing trace with hash 2539, now seen corresponding path program 1 times [2020-06-22 07:46:59,101 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 07:46:59,101 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 07:46:59,103 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:46:59,103 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 07:46:59,103 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:46:59,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:46:59,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:46:59,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:46:59,110 INFO L82 PathProgramCache]: Analyzing trace with hash 2202268, now seen corresponding path program 1 times [2020-06-22 07:46:59,110 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 07:46:59,110 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 07:46:59,111 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:46:59,111 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 07:46:59,112 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:46:59,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 07:46:59,145 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 07:46:59,147 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 07:46:59,147 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-06-22 07:46:59,167 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 07:46:59,167 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 07:46:59,167 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 07:46:59,167 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 07:46:59,167 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 07:46:59,168 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:46:59,168 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 07:46:59,168 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 07:46:59,168 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 07:46:59,168 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 07:46:59,168 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 07:46:59,170 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 07:46:59,173 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 07:46:59,178 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 07:46:59,181 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 07:46:59,185 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 07:46:59,242 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 07:46:59,242 INFO L412 LassoAnalysis]: Checking for nontermination... 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 07:46:59,246 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 07:46:59,246 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 07:46:59,273 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 07:46:59,273 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 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 07:46:59,278 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 07:46:59,278 INFO L163 nArgumentSynthesizer]: Using integer mode. 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 07:46:59,308 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 07:46:59,309 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 07:46:59,406 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 07:46:59,408 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 07:46:59,408 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 07:46:59,408 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 07:46:59,409 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 07:46:59,409 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 07:46:59,409 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 07:46:59,409 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 07:46:59,410 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 07:46:59,410 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 07:46:59,410 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 07:46:59,410 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 07:46:59,412 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 07:46:59,416 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 07:46:59,425 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 07:46:59,428 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 07:46:59,431 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 07:46:59,489 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 07:46:59,490 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 07:46:59,490 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 07:46:59,491 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 07:46:59,491 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 07:46:59,492 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 07:46:59,492 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 07:46:59,494 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 07:46:59,495 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 07:46:59,499 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 07:46:59,499 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 07:46:59,500 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 07:46:59,501 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 07:46:59,502 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 07:46:59,502 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 07:46:59,502 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 07:46:59,503 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 07:46:59,503 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 07:46:59,507 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 07:46:59,511 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 07:46:59,511 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 07:46:59,512 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 07:46:59,512 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 07:46:59,512 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 07:46:59,513 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = -1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2020-06-22 07:46:59,513 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 07:46:59,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:46:59,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 07:46:59,544 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 07:46:59,544 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 07:46:59,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 07:46:59,554 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 07:46:59,591 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 07:46:59,607 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 07:46:59,608 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-06-22 07:46:59,608 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-06-22 07:46:59,608 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 8 states and 23 transitions. cyclomatic complexity: 18 Second operand 3 states. [2020-06-22 07:46:59,653 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 8 states and 23 transitions. cyclomatic complexity: 18. Second operand 3 states. Result 26 states and 55 transitions. Complement of second has 6 states. [2020-06-22 07:46:59,654 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-06-22 07:46:59,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-06-22 07:46:59,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2020-06-22 07:46:59,655 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 2 letters. Loop has 2 letters. [2020-06-22 07:46:59,655 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 07:46:59,656 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 4 letters. Loop has 2 letters. [2020-06-22 07:46:59,656 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 07:46:59,656 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 2 letters. Loop has 4 letters. [2020-06-22 07:46:59,656 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 07:46:59,658 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 55 transitions. [2020-06-22 07:46:59,660 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-06-22 07:46:59,661 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 26 states and 55 transitions. [2020-06-22 07:46:59,662 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2020-06-22 07:46:59,662 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2020-06-22 07:46:59,662 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 55 transitions. [2020-06-22 07:46:59,662 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 07:46:59,663 INFO L706 BuchiCegarLoop]: Abstraction has 26 states and 55 transitions. [2020-06-22 07:46:59,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 55 transitions. [2020-06-22 07:46:59,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 22. [2020-06-22 07:46:59,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-06-22 07:46:59,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 51 transitions. [2020-06-22 07:46:59,666 INFO L729 BuchiCegarLoop]: Abstraction has 22 states and 51 transitions. [2020-06-22 07:46:59,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-06-22 07:46:59,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-06-22 07:46:59,672 INFO L87 Difference]: Start difference. First operand 22 states and 51 transitions. Second operand 3 states. [2020-06-22 07:46:59,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 07:46:59,705 INFO L93 Difference]: Finished difference Result 12 states and 23 transitions. [2020-06-22 07:46:59,706 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-06-22 07:46:59,707 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 23 transitions. [2020-06-22 07:46:59,708 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 07:46:59,709 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 8 states and 15 transitions. [2020-06-22 07:46:59,709 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2020-06-22 07:46:59,709 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2020-06-22 07:46:59,709 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 15 transitions. [2020-06-22 07:46:59,710 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 07:46:59,710 INFO L706 BuchiCegarLoop]: Abstraction has 8 states and 15 transitions. [2020-06-22 07:46:59,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 15 transitions. [2020-06-22 07:46:59,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2020-06-22 07:46:59,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-06-22 07:46:59,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 15 transitions. [2020-06-22 07:46:59,712 INFO L729 BuchiCegarLoop]: Abstraction has 8 states and 15 transitions. [2020-06-22 07:46:59,712 INFO L609 BuchiCegarLoop]: Abstraction has 8 states and 15 transitions. [2020-06-22 07:46:59,712 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2020-06-22 07:46:59,712 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 15 transitions. [2020-06-22 07:46:59,713 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 07:46:59,713 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 07:46:59,713 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 07:46:59,713 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 07:46:59,713 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 07:46:59,714 INFO L794 eck$LassoCheckResult]: Stem: 145#ULTIMATE.startENTRY [41] ULTIMATE.startENTRY-->L13-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~res~0_1 0) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~res~0=v_ULTIMATE.start_main_~res~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~res~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 146#L13-2 [57] L13-2-->L21-3: Formula: (>= 0 v_ULTIMATE.start_main_~y~0_6) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6} AuxVars[] AssignedVars[] 148#L21-3 [2020-06-22 07:46:59,714 INFO L796 eck$LassoCheckResult]: Loop: 148#L21-3 [49] L21-3-->L21-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_9 (+ v_ULTIMATE.start_main_~y~0_10 1)) (= v_ULTIMATE.start_main_~res~0_6 (+ v_ULTIMATE.start_main_~res~0_7 1)) (< 0 v_ULTIMATE.start_main_~x~0_10)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~res~0=v_ULTIMATE.start_main_~res~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~res~0=v_ULTIMATE.start_main_~res~0_6, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} AuxVars[] AssignedVars[ULTIMATE.start_main_~res~0, ULTIMATE.start_main_~y~0] 150#L21-2 [59] L21-2-->L21-3: Formula: (>= 0 v_ULTIMATE.start_main_~y~0_11) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11} AuxVars[] AssignedVars[] 148#L21-3 [2020-06-22 07:46:59,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:46:59,714 INFO L82 PathProgramCache]: Analyzing trace with hash 2289, now seen corresponding path program 1 times [2020-06-22 07:46:59,714 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 07:46:59,714 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 07:46:59,716 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:46:59,716 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 07:46:59,716 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:46:59,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:46:59,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:46:59,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:46:59,722 INFO L82 PathProgramCache]: Analyzing trace with hash 2539, now seen corresponding path program 2 times [2020-06-22 07:46:59,722 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 07:46:59,722 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 07:46:59,723 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:46:59,724 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 07:46:59,724 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:46:59,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:46:59,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:46:59,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:46:59,729 INFO L82 PathProgramCache]: Analyzing trace with hash 2201307, now seen corresponding path program 1 times [2020-06-22 07:46:59,730 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 07:46:59,730 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 07:46:59,731 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:46:59,731 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 07:46:59,731 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:46:59,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:46:59,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:46:59,758 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 07:46:59,759 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 07:46:59,759 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 07:46:59,759 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 07:46:59,759 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 07:46:59,759 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:46:59,759 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 07:46:59,759 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 07:46:59,759 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-06-22 07:46:59,760 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 07:46:59,760 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 07:46:59,761 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 07:46:59,768 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 07:46:59,771 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 07:46:59,778 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 07:46:59,782 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 07:46:59,854 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 07:46:59,854 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:46:59,860 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 07:46:59,861 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 07:46:59,890 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 07:46:59,890 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 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 07:46:59,897 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 07:46:59,897 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 07:46:59,924 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 07:46:59,924 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=1} Honda state: {ULTIMATE.start_main_~x~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:46:59,929 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 07:46:59,930 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:46:59,960 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 07:46:59,960 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 07:47:00,046 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 07:47:00,049 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 07:47:00,049 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 07:47:00,049 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 07:47:00,049 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 07:47:00,049 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 07:47:00,049 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 07:47:00,050 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 07:47:00,050 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 07:47:00,050 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-06-22 07:47:00,050 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 07:47:00,050 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 07:47:00,052 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 07:47:00,055 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 07:47:00,058 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 07:47:00,064 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 07:47:00,068 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 07:47:00,121 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 07:47:00,122 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 07:47:00,122 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 07:47:00,123 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 07:47:00,123 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 07:47:00,123 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 07:47:00,123 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 07:47:00,124 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 07:47:00,124 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 07:47:00,125 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 07:47:00,126 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 07:47:00,126 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 07:47:00,127 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 07:47:00,127 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 07:47:00,127 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 07:47:00,127 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 07:47:00,129 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 07:47:00,129 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 07:47:00,134 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 07:47:00,134 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 07:47:00,135 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 07:47:00,135 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 07:47:00,135 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 07:47:00,135 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 07:47:00,135 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 07:47:00,136 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 07:47:00,136 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 07:47:00,140 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 07:47:00,142 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 07:47:00,142 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 07:47:00,143 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 07:47:00,143 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 07:47:00,143 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 07:47:00,143 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = -1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2020-06-22 07:47:00,144 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 07:47:00,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:47:00,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 07:47:00,171 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 07:47:00,172 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 07:47:00,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 07:47:00,177 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 07:47:00,177 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 07:47:00,190 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 07:47:00,190 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-06-22 07:47:00,190 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-06-22 07:47:00,191 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 8 states and 15 transitions. cyclomatic complexity: 10 Second operand 3 states. [2020-06-22 07:47:00,216 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 8 states and 15 transitions. cyclomatic complexity: 10. Second operand 3 states. Result 22 states and 34 transitions. Complement of second has 6 states. [2020-06-22 07:47:00,216 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-06-22 07:47:00,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-06-22 07:47:00,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2020-06-22 07:47:00,217 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 2 letters. Loop has 2 letters. [2020-06-22 07:47:00,218 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 07:47:00,218 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 4 letters. Loop has 2 letters. [2020-06-22 07:47:00,218 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 07:47:00,218 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 2 letters. Loop has 4 letters. [2020-06-22 07:47:00,218 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 07:47:00,220 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 34 transitions. [2020-06-22 07:47:00,221 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 07:47:00,221 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 15 states and 23 transitions. [2020-06-22 07:47:00,221 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2020-06-22 07:47:00,222 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2020-06-22 07:47:00,222 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 23 transitions. [2020-06-22 07:47:00,222 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 07:47:00,222 INFO L706 BuchiCegarLoop]: Abstraction has 15 states and 23 transitions. [2020-06-22 07:47:00,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 23 transitions. [2020-06-22 07:47:00,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2020-06-22 07:47:00,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-06-22 07:47:00,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 23 transitions. [2020-06-22 07:47:00,224 INFO L729 BuchiCegarLoop]: Abstraction has 15 states and 23 transitions. [2020-06-22 07:47:00,224 INFO L609 BuchiCegarLoop]: Abstraction has 15 states and 23 transitions. [2020-06-22 07:47:00,224 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2020-06-22 07:47:00,224 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 23 transitions. [2020-06-22 07:47:00,225 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 07:47:00,225 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 07:47:00,225 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 07:47:00,226 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2020-06-22 07:47:00,226 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 07:47:00,227 INFO L794 eck$LassoCheckResult]: Stem: 210#ULTIMATE.startENTRY [41] ULTIMATE.startENTRY-->L13-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~res~0_1 0) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~res~0=v_ULTIMATE.start_main_~res~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~res~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 211#L13-2 [57] L13-2-->L21-3: Formula: (>= 0 v_ULTIMATE.start_main_~y~0_6) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6} AuxVars[] AssignedVars[] 212#L21-3 [49] L21-3-->L21-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_9 (+ v_ULTIMATE.start_main_~y~0_10 1)) (= v_ULTIMATE.start_main_~res~0_6 (+ v_ULTIMATE.start_main_~res~0_7 1)) (< 0 v_ULTIMATE.start_main_~x~0_10)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~res~0=v_ULTIMATE.start_main_~res~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~res~0=v_ULTIMATE.start_main_~res~0_6, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} AuxVars[] AssignedVars[ULTIMATE.start_main_~res~0, ULTIMATE.start_main_~y~0] 224#L21-2 [52] L21-2-->L21-2: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_13) (= v_ULTIMATE.start_main_~y~0_12 (+ v_ULTIMATE.start_main_~y~0_13 (- 1))) (= v_ULTIMATE.start_main_~x~0_12 (+ v_ULTIMATE.start_main_~x~0_13 (- 1))) (< 0 v_ULTIMATE.start_main_~x~0_13)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_13, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_13} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 221#L21-2 [52] L21-2-->L21-2: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_13) (= v_ULTIMATE.start_main_~y~0_12 (+ v_ULTIMATE.start_main_~y~0_13 (- 1))) (= v_ULTIMATE.start_main_~x~0_12 (+ v_ULTIMATE.start_main_~x~0_13 (- 1))) (< 0 v_ULTIMATE.start_main_~x~0_13)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_13, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_13} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 219#L21-2 [59] L21-2-->L21-3: Formula: (>= 0 v_ULTIMATE.start_main_~y~0_11) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11} AuxVars[] AssignedVars[] 214#L21-3 [2020-06-22 07:47:00,227 INFO L796 eck$LassoCheckResult]: Loop: 214#L21-3 [49] L21-3-->L21-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_9 (+ v_ULTIMATE.start_main_~y~0_10 1)) (= v_ULTIMATE.start_main_~res~0_6 (+ v_ULTIMATE.start_main_~res~0_7 1)) (< 0 v_ULTIMATE.start_main_~x~0_10)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~res~0=v_ULTIMATE.start_main_~res~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~res~0=v_ULTIMATE.start_main_~res~0_6, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} AuxVars[] AssignedVars[ULTIMATE.start_main_~res~0, ULTIMATE.start_main_~y~0] 215#L21-2 [59] L21-2-->L21-3: Formula: (>= 0 v_ULTIMATE.start_main_~y~0_11) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11} AuxVars[] AssignedVars[] 214#L21-3 [2020-06-22 07:47:00,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:47:00,227 INFO L82 PathProgramCache]: Analyzing trace with hash 2115450971, now seen corresponding path program 1 times [2020-06-22 07:47:00,227 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 07:47:00,227 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 07:47:00,229 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:47:00,229 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 07:47:00,229 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:47:00,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 07:47:00,251 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 07:47:00,251 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 07:47:00,251 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-06-22 07:47:00,252 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-06-22 07:47:00,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:47:00,252 INFO L82 PathProgramCache]: Analyzing trace with hash 2539, now seen corresponding path program 3 times [2020-06-22 07:47:00,252 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 07:47:00,252 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 07:47:00,253 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:47:00,253 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 07:47:00,254 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:47:00,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:47:00,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:47:00,288 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 07:47:00,288 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 07:47:00,288 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 07:47:00,288 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 07:47:00,289 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 07:47:00,289 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:47:00,289 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 07:47:00,289 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 07:47:00,289 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2020-06-22 07:47:00,289 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 07:47:00,289 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 07:47:00,291 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 07:47:00,295 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 07:47:00,298 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 07:47:00,304 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 07:47:00,307 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 07:47:00,354 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 07:47:00,355 INFO L412 LassoAnalysis]: Checking for nontermination... 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 07:47:00,379 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 07:47:00,379 INFO L163 nArgumentSynthesizer]: Using integer mode. 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 07:47:00,413 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 07:47:00,413 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 07:47:00,430 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 07:47:00,430 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~res~0=0} Honda state: {ULTIMATE.start_main_~res~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~res~0=7}, {ULTIMATE.start_main_~res~0=-7}, {ULTIMATE.start_main_~res~0=1}] Lambdas: [2, 1, 1] Nus: [1, 0] 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 07:47:00,456 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 07:47:00,457 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 07:47:00,483 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 07:47:00,484 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=1} Honda state: {ULTIMATE.start_main_~x~0=1} 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 07:47:00,488 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 07:47:00,488 INFO L163 nArgumentSynthesizer]: Using integer mode. 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 07:47:00,517 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 07:47:00,518 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 07:47:00,602 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 07:47:00,605 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 07:47:00,605 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 07:47:00,605 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 07:47:00,605 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 07:47:00,605 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 07:47:00,605 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 07:47:00,605 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 07:47:00,605 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 07:47:00,606 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2020-06-22 07:47:00,606 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 07:47:00,606 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 07:47:00,608 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 07:47:00,611 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 07:47:00,614 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 07:47:00,620 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 07:47:00,622 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 07:47:00,668 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 07:47:00,668 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 07:47:00,668 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 07:47:00,669 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 07:47:00,669 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 07:47:00,670 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 07:47:00,670 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 07:47:00,670 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 07:47:00,670 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 07:47:00,670 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 07:47:00,674 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 07:47:00,674 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 07:47:00,674 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 07:47:00,675 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 07:47:00,675 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 07:47:00,675 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 07:47:00,675 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 07:47:00,675 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 07:47:00,676 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 07:47:00,677 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 07:47:00,677 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 07:47:00,677 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 07:47:00,678 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 07:47:00,678 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 07:47:00,678 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 07:47:00,678 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 07:47:00,678 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 07:47:00,678 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 07:47:00,681 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 07:47:00,683 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 07:47:00,684 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 07:47:00,684 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 07:47:00,684 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 07:47:00,684 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 07:47:00,684 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = -1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2020-06-22 07:47:00,685 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 07:47:00,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:47:00,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 07:47:00,704 INFO L256 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 07:47:00,705 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 07:47:00,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 07:47:00,709 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 07:47:00,709 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 07:47:00,715 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 07:47:00,716 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-06-22 07:47:00,716 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-06-22 07:47:00,716 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 15 states and 23 transitions. cyclomatic complexity: 13 Second operand 3 states. [2020-06-22 07:47:00,743 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 15 states and 23 transitions. cyclomatic complexity: 13. Second operand 3 states. Result 37 states and 57 transitions. Complement of second has 8 states. [2020-06-22 07:47:00,743 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-06-22 07:47:00,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-06-22 07:47:00,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2020-06-22 07:47:00,744 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 6 letters. Loop has 2 letters. [2020-06-22 07:47:00,744 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 07:47:00,745 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 8 letters. Loop has 2 letters. [2020-06-22 07:47:00,745 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 07:47:00,745 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 6 letters. Loop has 4 letters. [2020-06-22 07:47:00,745 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 07:47:00,746 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 57 transitions. [2020-06-22 07:47:00,748 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 07:47:00,748 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 0 states and 0 transitions. [2020-06-22 07:47:00,748 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-06-22 07:47:00,749 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-06-22 07:47:00,749 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-06-22 07:47:00,749 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 07:47:00,749 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 07:47:00,749 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 07:47:00,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-06-22 07:47:00,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-06-22 07:47:00,750 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 4 states. [2020-06-22 07:47:00,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 07:47:00,750 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-06-22 07:47:00,750 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-06-22 07:47:00,751 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2020-06-22 07:47:00,751 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 07:47:00,751 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2020-06-22 07:47:00,751 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-06-22 07:47:00,751 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-06-22 07:47:00,751 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-06-22 07:47:00,752 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 07:47:00,752 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 07:47:00,752 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 07:47:00,752 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 07:47:00,752 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2020-06-22 07:47:00,752 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-06-22 07:47:00,752 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 07:47:00,752 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-06-22 07:47:00,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 07:47:00 BasicIcfg [2020-06-22 07:47:00,758 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-22 07:47:00,759 INFO L168 Benchmark]: Toolchain (without parser) took 3327.92 ms. Allocated memory was 649.6 MB in the beginning and 763.9 MB in the end (delta: 114.3 MB). Free memory was 558.8 MB in the beginning and 672.9 MB in the end (delta: -114.1 MB). Peak memory consumption was 213.3 kB. Max. memory is 50.3 GB. [2020-06-22 07:47:00,760 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 580.5 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 07:47:00,761 INFO L168 Benchmark]: CACSL2BoogieTranslator took 295.53 ms. Allocated memory was 649.6 MB in the beginning and 693.6 MB in the end (delta: 44.0 MB). Free memory was 558.8 MB in the beginning and 661.2 MB in the end (delta: -102.4 MB). Peak memory consumption was 30.9 MB. Max. memory is 50.3 GB. [2020-06-22 07:47:00,761 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.79 ms. Allocated memory is still 693.6 MB. Free memory was 661.2 MB in the beginning and 660.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-06-22 07:47:00,762 INFO L168 Benchmark]: Boogie Preprocessor took 19.88 ms. Allocated memory is still 693.6 MB. Free memory was 660.2 MB in the beginning and 656.3 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 50.3 GB. [2020-06-22 07:47:00,762 INFO L168 Benchmark]: RCFGBuilder took 212.22 ms. Allocated memory is still 693.6 MB. Free memory was 656.3 MB in the beginning and 642.8 MB in the end (delta: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 50.3 GB. [2020-06-22 07:47:00,763 INFO L168 Benchmark]: BlockEncodingV2 took 79.99 ms. Allocated memory is still 693.6 MB. Free memory was 642.8 MB in the beginning and 637.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. [2020-06-22 07:47:00,764 INFO L168 Benchmark]: TraceAbstraction took 166.44 ms. Allocated memory is still 693.6 MB. Free memory was 637.4 MB in the beginning and 628.7 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 50.3 GB. [2020-06-22 07:47:00,764 INFO L168 Benchmark]: BuchiAutomizer took 2512.70 ms. Allocated memory was 693.6 MB in the beginning and 763.9 MB in the end (delta: 70.3 MB). Free memory was 627.7 MB in the beginning and 672.9 MB in the end (delta: -45.3 MB). Peak memory consumption was 25.0 MB. Max. memory is 50.3 GB. [2020-06-22 07:47:00,768 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 8 locations, 13 edges - StatisticsResult: Encoded RCFG 4 locations, 8 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 580.5 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 295.53 ms. Allocated memory was 649.6 MB in the beginning and 693.6 MB in the end (delta: 44.0 MB). Free memory was 558.8 MB in the beginning and 661.2 MB in the end (delta: -102.4 MB). Peak memory consumption was 30.9 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 35.79 ms. Allocated memory is still 693.6 MB. Free memory was 661.2 MB in the beginning and 660.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 19.88 ms. Allocated memory is still 693.6 MB. Free memory was 660.2 MB in the beginning and 656.3 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 50.3 GB. * RCFGBuilder took 212.22 ms. Allocated memory is still 693.6 MB. Free memory was 656.3 MB in the beginning and 642.8 MB in the end (delta: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 79.99 ms. Allocated memory is still 693.6 MB. Free memory was 642.8 MB in the beginning and 637.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. * TraceAbstraction took 166.44 ms. Allocated memory is still 693.6 MB. Free memory was 637.4 MB in the beginning and 628.7 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 2512.70 ms. Allocated memory was 693.6 MB in the beginning and 763.9 MB in the end (delta: 70.3 MB). Free memory was 627.7 MB in the beginning and 672.9 MB in the end (delta: -45.3 MB). Peak memory consumption was 25.0 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: 13]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 4 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=4occurred 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, 2 LocationsWithAnnotation, 2 PreInvPairs, 2 NumberOfFragments, 2 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (2 trivial, 0 deterministic, 4 nondeterministic). One nondeterministic module has affine ranking function x and consists of 3 locations. One nondeterministic module has affine ranking function -1 * y and consists of 4 locations. One nondeterministic module has affine ranking function -1 * y and consists of 4 locations. One nondeterministic module has affine ranking function -1 * y and consists of 4 locations. 2 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.4s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 1.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 15 states and ocurred in iteration 3. Nontrivial modules had stage [4, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 20 SDtfs, 38 SDslu, 6 SDs, 0 SdLazy, 66 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT1 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax166 hnf100 lsp33 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 16ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.7s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-06-22 07:46:54.142 ----------------------------------------------- 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 07:47:01.185 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check