YES Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-22 07:29:24,371 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-22 07:29:24,374 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-22 07:29:24,385 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-22 07:29:24,385 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-22 07:29:24,386 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-22 07:29:24,387 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-22 07:29:24,389 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-22 07:29:24,390 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-22 07:29:24,391 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-22 07:29:24,392 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-22 07:29:24,392 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-22 07:29:24,393 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-22 07:29:24,394 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-22 07:29:24,395 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-22 07:29:24,396 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-22 07:29:24,396 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-22 07:29:24,398 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-22 07:29:24,400 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-22 07:29:24,401 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-22 07:29:24,402 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-22 07:29:24,403 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-22 07:29:24,405 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-22 07:29:24,405 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-22 07:29:24,406 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-22 07:29:24,407 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-22 07:29:24,407 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-22 07:29:24,408 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-22 07:29:24,408 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-22 07:29:24,409 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-22 07:29:24,409 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-22 07:29:24,410 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-22 07:29:24,411 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-22 07:29:24,411 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-22 07:29:24,412 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-22 07:29:24,412 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-22 07:29:24,412 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-22 07:29:24,413 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-22 07:29:24,414 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-22 07:29:24,414 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-06-22 07:29:24,429 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-22 07:29:24,429 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-22 07:29:24,430 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-22 07:29:24,430 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-22 07:29:24,430 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-22 07:29:24,431 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-22 07:29:24,431 INFO L133 SettingsManager]: * Use SBE=true [2020-06-22 07:29:24,431 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-22 07:29:24,431 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-22 07:29:24,431 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-22 07:29:24,432 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-22 07:29:24,432 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-22 07:29:24,432 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-22 07:29:24,432 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-22 07:29:24,432 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:29:24,432 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-22 07:29:24,433 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-22 07:29:24,433 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-22 07:29:24,433 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-22 07:29:24,433 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-22 07:29:24,433 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-22 07:29:24,434 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-22 07:29:24,434 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-22 07:29:24,434 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-22 07:29:24,434 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 07:29:24,434 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-22 07:29:24,434 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-22 07:29:24,435 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-22 07:29:24,435 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-22 07:29:24,461 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-22 07:29:24,474 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-22 07:29:24,477 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-22 07:29:24,479 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-22 07:29:24,479 INFO L276 PluginConnector]: CDTParser initialized [2020-06-22 07:29:24,480 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 07:29:24,572 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/be66adfdc19342ab837324827d3b98d8/FLAG1c10b28ba [2020-06-22 07:29:24,914 INFO L307 CDTParser]: Found 1 translation units. [2020-06-22 07:29:24,915 INFO L161 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 07:29:24,922 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/be66adfdc19342ab837324827d3b98d8/FLAG1c10b28ba [2020-06-22 07:29:25,327 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/be66adfdc19342ab837324827d3b98d8 [2020-06-22 07:29:25,339 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-22 07:29:25,340 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-22 07:29:25,341 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-22 07:29:25,341 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-22 07:29:25,345 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-22 07:29:25,346 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 07:29:25" (1/1) ... [2020-06-22 07:29:25,349 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@533a4d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:29:25, skipping insertion in model container [2020-06-22 07:29:25,350 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 07:29:25" (1/1) ... [2020-06-22 07:29:25,358 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-22 07:29:25,376 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-22 07:29:25,534 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 07:29:25,539 INFO L191 MainTranslator]: Completed pre-run [2020-06-22 07:29:25,614 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 07:29:25,629 INFO L195 MainTranslator]: Completed translation [2020-06-22 07:29:25,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:29:25 WrapperNode [2020-06-22 07:29:25,630 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-22 07:29:25,630 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-22 07:29:25,631 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-22 07:29:25,631 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-22 07:29:25,640 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:29:25" (1/1) ... [2020-06-22 07:29:25,645 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:29:25" (1/1) ... [2020-06-22 07:29:25,664 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-22 07:29:25,664 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-22 07:29:25,664 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-22 07:29:25,665 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-22 07:29:25,674 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:29:25" (1/1) ... [2020-06-22 07:29:25,674 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:29:25" (1/1) ... [2020-06-22 07:29:25,674 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:29:25" (1/1) ... [2020-06-22 07:29:25,675 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:29:25" (1/1) ... [2020-06-22 07:29:25,677 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:29:25" (1/1) ... [2020-06-22 07:29:25,681 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:29:25" (1/1) ... [2020-06-22 07:29:25,682 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:29:25" (1/1) ... [2020-06-22 07:29:25,683 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-22 07:29:25,683 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-22 07:29:25,684 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-22 07:29:25,684 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-22 07:29:25,685 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:29:25" (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 07:29:25,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-22 07:29:25,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-22 07:29:25,878 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-22 07:29:25,878 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. [2020-06-22 07:29:25,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 07:29:25 BoogieIcfgContainer [2020-06-22 07:29:25,880 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-22 07:29:25,880 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-22 07:29:25,881 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-22 07:29:25,882 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-22 07:29:25,883 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 07:29:25" (1/1) ... [2020-06-22 07:29:25,898 INFO L313 BlockEncoder]: Initial Icfg 7 locations, 9 edges [2020-06-22 07:29:25,899 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-22 07:29:25,900 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-22 07:29:25,900 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-22 07:29:25,901 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-22 07:29:25,903 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-22 07:29:25,903 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-22 07:29:25,904 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-22 07:29:25,919 INFO L185 BlockEncoder]: Using Use SBE [2020-06-22 07:29:25,934 INFO L200 BlockEncoder]: SBE split 1 edges [2020-06-22 07:29:25,938 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-06-22 07:29:25,942 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 07:29:25,954 INFO L100 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2020-06-22 07:29:25,956 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-06-22 07:29:25,957 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 07:29:25,957 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 07:29:25,957 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-22 07:29:25,958 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 07:29:25,958 INFO L313 BlockEncoder]: Encoded RCFG 3 locations, 5 edges [2020-06-22 07:29:25,958 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 07:29:25 BasicIcfg [2020-06-22 07:29:25,958 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-22 07:29:25,959 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-22 07:29:25,960 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-22 07:29:25,963 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-22 07:29:25,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.06 07:29:25" (1/4) ... [2020-06-22 07:29:25,964 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@144d2227 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 07:29:25, skipping insertion in model container [2020-06-22 07:29:25,964 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:29:25" (2/4) ... [2020-06-22 07:29:25,964 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@144d2227 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 07:29:25, skipping insertion in model container [2020-06-22 07:29:25,965 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 07:29:25" (3/4) ... [2020-06-22 07:29:25,965 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@144d2227 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 07:29:25, skipping insertion in model container [2020-06-22 07:29:25,965 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 07:29:25" (4/4) ... [2020-06-22 07:29:25,967 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 07:29:25,976 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-22 07:29:25,984 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-06-22 07:29:26,000 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-06-22 07:29:26,028 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 07:29:26,029 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-22 07:29:26,029 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-22 07:29:26,029 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 07:29:26,030 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 07:29:26,030 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 07:29:26,030 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-22 07:29:26,030 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 07:29:26,030 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-22 07:29:26,044 INFO L276 IsEmpty]: Start isEmpty. Operand 3 states. [2020-06-22 07:29:26,049 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-06-22 07:29:26,052 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. [2020-06-22 07:29:26,101 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-06-22 07:29:26,101 INFO L448 ceAbstractionStarter]: For program point L21(lines 21 25) no Hoare annotation was computed. [2020-06-22 07:29:26,101 INFO L451 ceAbstractionStarter]: At program point L21-2(lines 18 26) the Hoare annotation is: true [2020-06-22 07:29:26,109 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 07:29:26 BasicIcfg [2020-06-22 07:29:26,110 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-22 07:29:26,110 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-22 07:29:26,110 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-22 07:29:26,113 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-22 07:29:26,114 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 07:29:26,114 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.06 07:29:25" (1/5) ... [2020-06-22 07:29:26,115 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@153c6775 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 07:29:26, skipping insertion in model container [2020-06-22 07:29:26,115 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 07:29:26,115 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:29:25" (2/5) ... [2020-06-22 07:29:26,116 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@153c6775 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 07:29:26, skipping insertion in model container [2020-06-22 07:29:26,116 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 07:29:26,116 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 07:29:25" (3/5) ... [2020-06-22 07:29:26,116 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@153c6775 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 07:29:26, skipping insertion in model container [2020-06-22 07:29:26,116 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 07:29:26,117 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 07:29:25" (4/5) ... [2020-06-22 07:29:26,117 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@153c6775 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 07:29:26, skipping insertion in model container [2020-06-22 07:29:26,117 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 07:29:26,117 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 07:29:26" (5/5) ... [2020-06-22 07:29:26,119 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 07:29:26,146 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 07:29:26,146 INFO L374 BuchiCegarLoop]: Interprodecural is true [2020-06-22 07:29:26,146 INFO L375 BuchiCegarLoop]: Hoare is true [2020-06-22 07:29:26,147 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 07:29:26,147 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 07:29:26,147 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 07:29:26,147 INFO L379 BuchiCegarLoop]: Difference is false [2020-06-22 07:29:26,147 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 07:29:26,147 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-06-22 07:29:26,151 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-06-22 07:29:26,170 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 07:29:26,170 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 07:29:26,170 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 07:29:26,176 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 07:29:26,176 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 07:29:26,176 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2020-06-22 07:29:26,176 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-06-22 07:29:26,177 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 07:29:26,177 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 07:29:26,177 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 07:29:26,177 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 07:29:26,177 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 07:29:26,182 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [26] ULTIMATE.startENTRY-->L21-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~b~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~b~0, ULTIMATE.start_main_~x~0] 5#L21-2true [2020-06-22 07:29:26,183 INFO L796 eck$LassoCheckResult]: Loop: 5#L21-2true [35] L21-2-->L21: Formula: (and (= v_ULTIMATE.start_main_~b~0_7 |v_ULTIMATE.start_main_#t~nondet2_3|) (< 0 v_ULTIMATE.start_main_~b~0_8) (= v_ULTIMATE.start_main_~x~0_6 (+ v_ULTIMATE.start_main_~x~0_7 (- 1)))) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_3|} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~b~0, ULTIMATE.start_main_~x~0] 3#L21true [34] L21-->L21-2: Formula: (and (= v_ULTIMATE.start_main_~b~0_10 0) (> 0 v_ULTIMATE.start_main_~x~0_9)) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~b~0] 5#L21-2true [2020-06-22 07:29:26,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:29:26,189 INFO L82 PathProgramCache]: Analyzing trace with hash 57, now seen corresponding path program 1 times [2020-06-22 07:29:26,191 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 07:29:26,191 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 07:29:26,219 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:29:26,220 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 07:29:26,220 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:29:26,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:29:26,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:29:26,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:29:26,275 INFO L82 PathProgramCache]: Analyzing trace with hash 2080, now seen corresponding path program 1 times [2020-06-22 07:29:26,275 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 07:29:26,276 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 07:29:26,277 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:29:26,277 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 07:29:26,278 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:29:26,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:29:26,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:29:26,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:29:26,290 INFO L82 PathProgramCache]: Analyzing trace with hash 55896, now seen corresponding path program 1 times [2020-06-22 07:29:26,290 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 07:29:26,291 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 07:29:26,292 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:29:26,292 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 07:29:26,293 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:29:26,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:29:26,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:29:26,357 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 07:29:26,358 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 07:29:26,359 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 07:29:26,359 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 07:29:26,359 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 07:29:26,359 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:29:26,359 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 07:29:26,359 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 07:29:26,360 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 07:29:26,360 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 07:29:26,360 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 07:29:26,380 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 07:29:26,389 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 07:29:26,394 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 07:29:26,399 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 07:29:26,409 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 07:29:26,501 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 07:29:26,502 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 07:29:26,508 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 07:29:26,508 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 07:29:26,540 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 07:29:26,541 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 07:29:26,547 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 07:29:26,547 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 07:29:26,575 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 07:29:26,575 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 07:29:26,580 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 07:29:26,580 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 07:29:26,584 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 07:29:26,584 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2=0} Honda state: {ULTIMATE.start_main_#t~nondet2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:29:26,613 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 07:29:26,613 INFO L163 nArgumentSynthesizer]: Using integer mode. 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 07:29:26,644 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 07:29:26,644 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 07:29:26,666 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 07:29:26,666 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=0} Honda state: {ULTIMATE.start_main_~x~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0=-1}, {ULTIMATE.start_main_~x~0=0}, {ULTIMATE.start_main_~x~0=0}] Lambdas: [1, 0, 15] Nus: [0, 0] 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 07:29:26,693 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 07:29:26,693 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 07:29:26,723 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 07:29:26,723 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 07:29:26,755 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 07:29:26,757 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 07:29:26,757 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 07:29:26,757 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 07:29:26,757 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 07:29:26,757 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 07:29:26,758 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 07:29:26,758 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 07:29:26,758 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 07:29:26,758 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 07:29:26,758 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 07:29:26,758 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 07:29:26,760 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 07:29:26,764 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 07:29:26,769 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 07:29:26,777 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 07:29:26,779 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 07:29:26,852 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 07:29:26,858 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 07:29:26,860 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 07:29:26,861 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 07:29:26,862 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 07:29:26,862 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 07:29:26,862 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 07:29:26,866 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 07:29:26,866 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 07:29:26,876 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 07:29:26,876 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 07:29:26,877 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 07:29:26,877 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 07:29:26,877 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 07:29:26,878 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 07:29:26,880 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 07:29:26,880 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 07:29:26,889 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 07:29:26,889 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 07:29:26,890 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 07:29:26,890 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 07:29:26,891 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 07:29:26,891 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 07:29:26,891 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 07:29:26,892 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 07:29:26,892 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 07:29:26,897 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 07:29:26,898 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 07:29:26,899 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 07:29:26,899 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 07:29:26,899 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 07:29:26,899 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 07:29:26,899 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 07:29:26,900 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 07:29:26,900 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 07:29:26,901 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 07:29:26,902 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 07:29:26,902 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 07:29:26,902 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 07:29:26,902 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 07:29:26,903 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 07:29:26,903 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 07:29:26,903 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 07:29:26,903 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 07:29:26,910 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 07:29:26,915 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 07:29:26,915 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 07:29:26,917 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 07:29:26,917 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 07:29:26,917 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 07:29:26,918 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~b~0) = 1*ULTIMATE.start_main_~b~0 Supporting invariants [] [2020-06-22 07:29:26,919 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 07:29:26,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:29:26,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 07:29:26,952 INFO L256 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 07:29:26,953 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 07:29:26,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 07:29:26,965 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 07:29:26,965 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 07:29:26,983 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 07:29:26,995 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-06-22 07:29:27,000 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 07:29:27,001 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 3 states. Second operand 3 states. [2020-06-22 07:29:27,056 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 3 states.. Second operand 3 states. Result 11 states and 21 transitions. Complement of second has 6 states. [2020-06-22 07:29:27,056 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 07:29:27,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-06-22 07:29:27,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2020-06-22 07:29:27,060 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 1 letters. Loop has 2 letters. [2020-06-22 07:29:27,062 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 07:29:27,062 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 3 letters. Loop has 2 letters. [2020-06-22 07:29:27,062 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 07:29:27,062 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 1 letters. Loop has 4 letters. [2020-06-22 07:29:27,063 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 07:29:27,068 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 21 transitions. [2020-06-22 07:29:27,069 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-06-22 07:29:27,075 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 11 states and 21 transitions. [2020-06-22 07:29:27,076 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2020-06-22 07:29:27,076 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2020-06-22 07:29:27,077 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 21 transitions. [2020-06-22 07:29:27,077 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 07:29:27,077 INFO L706 BuchiCegarLoop]: Abstraction has 11 states and 21 transitions. [2020-06-22 07:29:27,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 21 transitions. [2020-06-22 07:29:27,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2020-06-22 07:29:27,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-06-22 07:29:27,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 18 transitions. [2020-06-22 07:29:27,107 INFO L729 BuchiCegarLoop]: Abstraction has 9 states and 18 transitions. [2020-06-22 07:29:27,107 INFO L609 BuchiCegarLoop]: Abstraction has 9 states and 18 transitions. [2020-06-22 07:29:27,107 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2020-06-22 07:29:27,107 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 18 transitions. [2020-06-22 07:29:27,108 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-06-22 07:29:27,108 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 07:29:27,108 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 07:29:27,109 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 07:29:27,109 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 07:29:27,109 INFO L794 eck$LassoCheckResult]: Stem: 55#ULTIMATE.startENTRY [26] ULTIMATE.startENTRY-->L21-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~b~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~b~0, ULTIMATE.start_main_~x~0] 56#L21-2 [35] L21-2-->L21: Formula: (and (= v_ULTIMATE.start_main_~b~0_7 |v_ULTIMATE.start_main_#t~nondet2_3|) (< 0 v_ULTIMATE.start_main_~b~0_8) (= v_ULTIMATE.start_main_~x~0_6 (+ v_ULTIMATE.start_main_~x~0_7 (- 1)))) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_3|} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~b~0, ULTIMATE.start_main_~x~0] 50#L21 [2020-06-22 07:29:27,109 INFO L796 eck$LassoCheckResult]: Loop: 50#L21 [24] L21-->L21-2: Formula: (and (<= 0 v_ULTIMATE.start_main_~x~0_8) (= v_ULTIMATE.start_main_~b~0_9 1)) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~b~0] 51#L21-2 [35] L21-2-->L21: Formula: (and (= v_ULTIMATE.start_main_~b~0_7 |v_ULTIMATE.start_main_#t~nondet2_3|) (< 0 v_ULTIMATE.start_main_~b~0_8) (= v_ULTIMATE.start_main_~x~0_6 (+ v_ULTIMATE.start_main_~x~0_7 (- 1)))) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_3|} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~b~0, ULTIMATE.start_main_~x~0] 50#L21 [2020-06-22 07:29:27,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:29:27,110 INFO L82 PathProgramCache]: Analyzing trace with hash 1802, now seen corresponding path program 1 times [2020-06-22 07:29:27,110 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 07:29:27,110 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 07:29:27,112 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:29:27,112 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 07:29:27,112 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:29:27,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:29:27,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:29:27,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:29:27,119 INFO L82 PathProgramCache]: Analyzing trace with hash 1740, now seen corresponding path program 1 times [2020-06-22 07:29:27,119 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 07:29:27,119 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 07:29:27,120 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:29:27,120 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 07:29:27,120 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:29:27,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:29:27,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:29:27,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:29:27,128 INFO L82 PathProgramCache]: Analyzing trace with hash 1732501, now seen corresponding path program 1 times [2020-06-22 07:29:27,128 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 07:29:27,128 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 07:29:27,129 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:29:27,129 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 07:29:27,129 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:29:27,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:29:27,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:29:27,164 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 07:29:27,164 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 07:29:27,164 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 07:29:27,164 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 07:29:27,164 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 07:29:27,164 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:29:27,164 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 07:29:27,164 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 07:29:27,165 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 07:29:27,165 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 07:29:27,165 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 07:29:27,166 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 07:29:27,170 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 07:29:27,173 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 07:29:27,175 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 07:29:27,244 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 07:29:27,244 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 07:29:27,265 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 07:29:27,265 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 07:29:27,293 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 07:29:27,293 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 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 07:29:27,298 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 07:29:27,299 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 07:29:27,305 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 07:29:27,305 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~b~0=4, ULTIMATE.start_main_#t~nondet2=4} Honda state: {ULTIMATE.start_main_~b~0=4, ULTIMATE.start_main_#t~nondet2=4} 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 07:29:27,334 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 07:29:27,335 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 07:29:27,362 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 07:29:27,362 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 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 07:29:27,368 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 07:29:27,368 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:29:27,399 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 07:29:27,399 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 07:29:27,429 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 07:29:27,432 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 07:29:27,432 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 07:29:27,432 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 07:29:27,432 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 07:29:27,432 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 07:29:27,432 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 07:29:27,432 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 07:29:27,432 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 07:29:27,433 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 07:29:27,433 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 07:29:27,433 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 07:29:27,435 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 07:29:27,443 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 07:29:27,450 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 07:29:27,453 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 07:29:27,504 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 07:29:27,504 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 07:29:27,505 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 07:29:27,506 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 07:29:27,506 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 07:29:27,506 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 07:29:27,506 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 07:29:27,508 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 07:29:27,508 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 07:29:27,512 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 07:29:27,512 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 07:29:27,513 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 07:29:27,513 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 07:29:27,513 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 07:29:27,513 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 07:29:27,514 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 07:29:27,514 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 07:29:27,514 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 07:29:27,520 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 07:29:27,523 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 07:29:27,523 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2020-06-22 07:29:27,524 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 07:29:27,524 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 07:29:27,524 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 07:29:27,524 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 2*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] [2020-06-22 07:29:27,524 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 07:29:27,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:29:27,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 07:29:27,551 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 07:29:27,551 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 07:29:27,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 07:29:27,557 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 07:29:27,558 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 07:29:27,569 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 07:29:27,586 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-06-22 07:29:27,587 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 07:29:27,587 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 9 states and 18 transitions. cyclomatic complexity: 12 Second operand 3 states. [2020-06-22 07:29:27,627 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 9 states and 18 transitions. cyclomatic complexity: 12. Second operand 3 states. Result 30 states and 58 transitions. Complement of second has 8 states. [2020-06-22 07:29:27,628 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 07:29:27,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-06-22 07:29:27,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2020-06-22 07:29:27,629 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 2 letters. Loop has 2 letters. [2020-06-22 07:29:27,630 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 07:29:27,630 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 4 letters. Loop has 2 letters. [2020-06-22 07:29:27,630 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 07:29:27,630 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 2 letters. Loop has 4 letters. [2020-06-22 07:29:27,631 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 07:29:27,632 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 58 transitions. [2020-06-22 07:29:27,634 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-06-22 07:29:27,635 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 21 states and 41 transitions. [2020-06-22 07:29:27,635 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2020-06-22 07:29:27,636 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2020-06-22 07:29:27,636 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 41 transitions. [2020-06-22 07:29:27,636 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 07:29:27,636 INFO L706 BuchiCegarLoop]: Abstraction has 21 states and 41 transitions. [2020-06-22 07:29:27,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 41 transitions. [2020-06-22 07:29:27,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 18. [2020-06-22 07:29:27,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-06-22 07:29:27,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 36 transitions. [2020-06-22 07:29:27,639 INFO L729 BuchiCegarLoop]: Abstraction has 18 states and 36 transitions. [2020-06-22 07:29:27,639 INFO L609 BuchiCegarLoop]: Abstraction has 18 states and 36 transitions. [2020-06-22 07:29:27,639 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2020-06-22 07:29:27,639 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 36 transitions. [2020-06-22 07:29:27,640 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-06-22 07:29:27,640 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 07:29:27,641 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 07:29:27,641 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 07:29:27,641 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 07:29:27,641 INFO L794 eck$LassoCheckResult]: Stem: 132#ULTIMATE.startENTRY [26] ULTIMATE.startENTRY-->L21-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~b~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~b~0, ULTIMATE.start_main_~x~0] 133#L21-2 [36] L21-2-->L21: Formula: (and (= v_ULTIMATE.start_main_~b~0_7 |v_ULTIMATE.start_main_#t~nondet2_3|) (= v_ULTIMATE.start_main_~x~0_6 (+ v_ULTIMATE.start_main_~x~0_7 (- 1))) (> 0 v_ULTIMATE.start_main_~b~0_8)) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_3|} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~b~0, ULTIMATE.start_main_~x~0] 138#L21 [2020-06-22 07:29:27,642 INFO L796 eck$LassoCheckResult]: Loop: 138#L21 [34] L21-->L21-2: Formula: (and (= v_ULTIMATE.start_main_~b~0_10 0) (> 0 v_ULTIMATE.start_main_~x~0_9)) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~b~0] 139#L21-2 [36] L21-2-->L21: Formula: (and (= v_ULTIMATE.start_main_~b~0_7 |v_ULTIMATE.start_main_#t~nondet2_3|) (= v_ULTIMATE.start_main_~x~0_6 (+ v_ULTIMATE.start_main_~x~0_7 (- 1))) (> 0 v_ULTIMATE.start_main_~b~0_8)) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_3|} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~b~0, ULTIMATE.start_main_~x~0] 138#L21 [2020-06-22 07:29:27,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:29:27,642 INFO L82 PathProgramCache]: Analyzing trace with hash 1803, now seen corresponding path program 1 times [2020-06-22 07:29:27,642 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 07:29:27,642 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 07:29:27,644 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:29:27,644 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 07:29:27,644 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:29:27,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:29:27,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:29:27,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:29:27,651 INFO L82 PathProgramCache]: Analyzing trace with hash 2051, now seen corresponding path program 1 times [2020-06-22 07:29:27,651 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 07:29:27,651 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 07:29:27,652 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:29:27,653 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 07:29:27,653 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:29:27,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 07:29:27,685 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 07:29:27,688 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 07:29:27,688 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-06-22 07:29:27,690 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-06-22 07:29:27,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-06-22 07:29:27,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-06-22 07:29:27,694 INFO L87 Difference]: Start difference. First operand 18 states and 36 transitions. cyclomatic complexity: 23 Second operand 3 states. [2020-06-22 07:29:27,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 07:29:27,726 INFO L93 Difference]: Finished difference Result 17 states and 27 transitions. [2020-06-22 07:29:27,727 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-06-22 07:29:27,729 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 27 transitions. [2020-06-22 07:29:27,730 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 07:29:27,730 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 11 states and 17 transitions. [2020-06-22 07:29:27,730 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2020-06-22 07:29:27,731 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2020-06-22 07:29:27,731 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 17 transitions. [2020-06-22 07:29:27,731 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 07:29:27,731 INFO L706 BuchiCegarLoop]: Abstraction has 11 states and 17 transitions. [2020-06-22 07:29:27,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 17 transitions. [2020-06-22 07:29:27,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2020-06-22 07:29:27,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-06-22 07:29:27,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 17 transitions. [2020-06-22 07:29:27,733 INFO L729 BuchiCegarLoop]: Abstraction has 11 states and 17 transitions. [2020-06-22 07:29:27,733 INFO L609 BuchiCegarLoop]: Abstraction has 11 states and 17 transitions. [2020-06-22 07:29:27,733 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2020-06-22 07:29:27,733 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 17 transitions. [2020-06-22 07:29:27,734 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 07:29:27,734 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 07:29:27,734 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 07:29:27,734 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-06-22 07:29:27,734 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 07:29:27,735 INFO L794 eck$LassoCheckResult]: Stem: 173#ULTIMATE.startENTRY [26] ULTIMATE.startENTRY-->L21-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~b~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~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_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~b~0, ULTIMATE.start_main_~x~0] 174#L21-2 [36] L21-2-->L21: Formula: (and (= v_ULTIMATE.start_main_~b~0_7 |v_ULTIMATE.start_main_#t~nondet2_3|) (= v_ULTIMATE.start_main_~x~0_6 (+ v_ULTIMATE.start_main_~x~0_7 (- 1))) (> 0 v_ULTIMATE.start_main_~b~0_8)) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_3|} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~b~0, ULTIMATE.start_main_~x~0] 175#L21 [24] L21-->L21-2: Formula: (and (<= 0 v_ULTIMATE.start_main_~x~0_8) (= v_ULTIMATE.start_main_~b~0_9 1)) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~b~0] 177#L21-2 [35] L21-2-->L21: Formula: (and (= v_ULTIMATE.start_main_~b~0_7 |v_ULTIMATE.start_main_#t~nondet2_3|) (< 0 v_ULTIMATE.start_main_~b~0_8) (= v_ULTIMATE.start_main_~x~0_6 (+ v_ULTIMATE.start_main_~x~0_7 (- 1)))) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_3|} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~b~0, ULTIMATE.start_main_~x~0] 176#L21 [34] L21-->L21-2: Formula: (and (= v_ULTIMATE.start_main_~b~0_10 0) (> 0 v_ULTIMATE.start_main_~x~0_9)) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~b~0] 169#L21-2 [2020-06-22 07:29:27,735 INFO L796 eck$LassoCheckResult]: Loop: 169#L21-2 [35] L21-2-->L21: Formula: (and (= v_ULTIMATE.start_main_~b~0_7 |v_ULTIMATE.start_main_#t~nondet2_3|) (< 0 v_ULTIMATE.start_main_~b~0_8) (= v_ULTIMATE.start_main_~x~0_6 (+ v_ULTIMATE.start_main_~x~0_7 (- 1)))) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_3|} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~b~0, ULTIMATE.start_main_~x~0] 168#L21 [34] L21-->L21-2: Formula: (and (= v_ULTIMATE.start_main_~b~0_10 0) (> 0 v_ULTIMATE.start_main_~x~0_9)) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~b~0] 169#L21-2 [2020-06-22 07:29:27,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:29:27,736 INFO L82 PathProgramCache]: Analyzing trace with hash 53737356, now seen corresponding path program 1 times [2020-06-22 07:29:27,736 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 07:29:27,736 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 07:29:27,737 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:29:27,737 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 07:29:27,737 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:29:27,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:29:27,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:29:27,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:29:27,747 INFO L82 PathProgramCache]: Analyzing trace with hash 2080, now seen corresponding path program 2 times [2020-06-22 07:29:27,747 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 07:29:27,748 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 07:29:27,749 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:29:27,749 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 07:29:27,749 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:29:27,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:29:27,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:29:27,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:29:27,755 INFO L82 PathProgramCache]: Analyzing trace with hash 101992683, now seen corresponding path program 2 times [2020-06-22 07:29:27,755 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 07:29:27,755 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 07:29:27,756 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:29:27,756 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 07:29:27,756 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:29:27,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 07:29:27,772 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-06-22 07:29:27,772 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 07:29:27,772 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-06-22 07:29:27,796 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 07:29:27,797 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 07:29:27,797 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 07:29:27,797 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 07:29:27,797 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 07:29:27,797 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:29:27,797 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 07:29:27,797 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 07:29:27,798 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2020-06-22 07:29:27,798 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 07:29:27,798 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 07:29:27,799 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 07:29:27,808 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 07:29:27,811 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 07:29:27,822 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 07:29:27,825 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 07:29:27,879 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 07:29:27,879 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:29:27,885 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 07:29:27,885 INFO L163 nArgumentSynthesizer]: Using integer mode. 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 07:29:27,915 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 07:29:27,915 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 07:29:27,936 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 07:29:27,936 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=0} Honda state: {ULTIMATE.start_main_~x~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0=-1}, {ULTIMATE.start_main_~x~0=0}, {ULTIMATE.start_main_~x~0=0}] Lambdas: [1, 0, 15] Nus: [0, 0] 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 07:29:27,963 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 07:29:27,963 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 07:29:27,967 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 07:29:27,967 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2=0} Honda state: {ULTIMATE.start_main_#t~nondet2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:29:27,994 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 07:29:27,994 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:29:28,024 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 07:29:28,024 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 07:29:28,055 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 07:29:28,056 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 07:29:28,057 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 07:29:28,057 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 07:29:28,057 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 07:29:28,057 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 07:29:28,057 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 07:29:28,057 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 07:29:28,057 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 07:29:28,057 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2020-06-22 07:29:28,058 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 07:29:28,058 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 07:29:28,059 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 07:29:28,062 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 07:29:28,068 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 07:29:28,076 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 07:29:28,081 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 07:29:28,133 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 07:29:28,133 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 07:29:28,133 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 07:29:28,134 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 07:29:28,134 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 07:29:28,134 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 07:29:28,135 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 07:29:28,135 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 07:29:28,135 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 07:29:28,135 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 07:29:28,136 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 07:29:28,137 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 07:29:28,137 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 07:29:28,137 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 07:29:28,137 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 07:29:28,138 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 07:29:28,138 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 07:29:28,138 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 07:29:28,138 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 07:29:28,142 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 07:29:28,142 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 07:29:28,142 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 07:29:28,143 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 07:29:28,143 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 07:29:28,143 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 07:29:28,143 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 07:29:28,144 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 07:29:28,144 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 07:29:28,147 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 07:29:28,149 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 07:29:28,149 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 07:29:28,150 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 07:29:28,150 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 07:29:28,150 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 07:29:28,150 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~b~0) = 1*ULTIMATE.start_main_~b~0 Supporting invariants [] [2020-06-22 07:29:28,150 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 07:29:28,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:29:28,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 07:29:28,177 INFO L256 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 07:29:28,178 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 07:29:28,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 07:29:28,187 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 07:29:28,187 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 07:29:28,195 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 07:29:28,196 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-06-22 07:29:28,196 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-06-22 07:29:28,196 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 11 states and 17 transitions. cyclomatic complexity: 8 Second operand 3 states. [2020-06-22 07:29:28,233 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 11 states and 17 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 26 states and 43 transitions. Complement of second has 6 states. [2020-06-22 07:29:28,234 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 07:29:28,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-06-22 07:29:28,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2020-06-22 07:29:28,235 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 5 letters. Loop has 2 letters. [2020-06-22 07:29:28,235 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 07:29:28,235 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 7 letters. Loop has 2 letters. [2020-06-22 07:29:28,235 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 07:29:28,235 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 5 letters. Loop has 4 letters. [2020-06-22 07:29:28,236 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 07:29:28,237 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 43 transitions. [2020-06-22 07:29:28,239 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 07:29:28,239 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 0 states and 0 transitions. [2020-06-22 07:29:28,239 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-06-22 07:29:28,239 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-06-22 07:29:28,239 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-06-22 07:29:28,239 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 07:29:28,240 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 07:29:28,240 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 07:29:28,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-06-22 07:29:28,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-06-22 07:29:28,240 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 3 states. [2020-06-22 07:29:28,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 07:29:28,240 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-06-22 07:29:28,240 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-06-22 07:29:28,241 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2020-06-22 07:29:28,241 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 07:29:28,242 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2020-06-22 07:29:28,242 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-06-22 07:29:28,242 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-06-22 07:29:28,242 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-06-22 07:29:28,242 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 07:29:28,242 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 07:29:28,242 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 07:29:28,242 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 07:29:28,242 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2020-06-22 07:29:28,242 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-06-22 07:29:28,243 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 07:29:28,243 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-06-22 07:29:28,249 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 07:29:28 BasicIcfg [2020-06-22 07:29:28,249 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-22 07:29:28,249 INFO L168 Benchmark]: Toolchain (without parser) took 2910.04 ms. Allocated memory was 514.9 MB in the beginning and 595.1 MB in the end (delta: 80.2 MB). Free memory was 437.1 MB in the beginning and 444.0 MB in the end (delta: -6.8 MB). Peak memory consumption was 73.4 MB. Max. memory is 50.3 GB. [2020-06-22 07:29:28,251 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 514.9 MB. Free memory is still 456.9 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 07:29:28,251 INFO L168 Benchmark]: CACSL2BoogieTranslator took 288.80 ms. Allocated memory was 514.9 MB in the beginning and 564.7 MB in the end (delta: 49.8 MB). Free memory was 436.6 MB in the beginning and 536.2 MB in the end (delta: -99.6 MB). Peak memory consumption was 29.1 MB. Max. memory is 50.3 GB. [2020-06-22 07:29:28,252 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.61 ms. Allocated memory is still 564.7 MB. Free memory was 536.2 MB in the beginning and 534.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 50.3 GB. [2020-06-22 07:29:28,252 INFO L168 Benchmark]: Boogie Preprocessor took 18.91 ms. Allocated memory is still 564.7 MB. Free memory was 534.6 MB in the beginning and 533.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-06-22 07:29:28,253 INFO L168 Benchmark]: RCFGBuilder took 196.47 ms. Allocated memory is still 564.7 MB. Free memory was 532.5 MB in the beginning and 522.7 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 50.3 GB. [2020-06-22 07:29:28,254 INFO L168 Benchmark]: BlockEncodingV2 took 78.18 ms. Allocated memory is still 564.7 MB. Free memory was 522.7 MB in the beginning and 517.0 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 50.3 GB. [2020-06-22 07:29:28,254 INFO L168 Benchmark]: TraceAbstraction took 150.16 ms. Allocated memory is still 564.7 MB. Free memory was 517.0 MB in the beginning and 507.8 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 50.3 GB. [2020-06-22 07:29:28,255 INFO L168 Benchmark]: BuchiAutomizer took 2138.53 ms. Allocated memory was 564.7 MB in the beginning and 595.1 MB in the end (delta: 30.4 MB). Free memory was 507.8 MB in the beginning and 444.0 MB in the end (delta: 63.9 MB). Peak memory consumption was 94.3 MB. Max. memory is 50.3 GB. [2020-06-22 07:29:28,259 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 7 locations, 9 edges - StatisticsResult: Encoded RCFG 3 locations, 5 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 514.9 MB. Free memory is still 456.9 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 288.80 ms. Allocated memory was 514.9 MB in the beginning and 564.7 MB in the end (delta: 49.8 MB). Free memory was 436.6 MB in the beginning and 536.2 MB in the end (delta: -99.6 MB). Peak memory consumption was 29.1 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 33.61 ms. Allocated memory is still 564.7 MB. Free memory was 536.2 MB in the beginning and 534.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 18.91 ms. Allocated memory is still 564.7 MB. Free memory was 534.6 MB in the beginning and 533.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * RCFGBuilder took 196.47 ms. Allocated memory is still 564.7 MB. Free memory was 532.5 MB in the beginning and 522.7 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 78.18 ms. Allocated memory is still 564.7 MB. Free memory was 522.7 MB in the beginning and 517.0 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 50.3 GB. * TraceAbstraction took 150.16 ms. Allocated memory is still 564.7 MB. Free memory was 517.0 MB in the beginning and 507.8 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 2138.53 ms. Allocated memory was 564.7 MB in the beginning and 595.1 MB in the end (delta: 30.4 MB). Free memory was 507.8 MB in the beginning and 444.0 MB in the end (delta: 63.9 MB). Peak memory consumption was 94.3 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 3 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=3occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 1 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (2 trivial, 0 deterministic, 3 nondeterministic). One nondeterministic module has affine ranking function b and consists of 4 locations. One nondeterministic module has affine ranking function 2 * x + 1 and consists of 4 locations. One nondeterministic module has affine ranking function b and consists of 4 locations. 2 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.1s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 1.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 18 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 10 SDtfs, 19 SDslu, 0 SDs, 0 SdLazy, 52 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT2 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax180 hnf100 lsp37 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie107 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 17ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 7 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-06-22 07:29:22.047 ----------------------------------------------- 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 07:29:28.492 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check