NO Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-22 00:29:54,879 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-22 00:29:54,881 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-22 00:29:54,892 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-22 00:29:54,893 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-22 00:29:54,894 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-22 00:29:54,895 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-22 00:29:54,896 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-22 00:29:54,898 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-22 00:29:54,899 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-22 00:29:54,899 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-22 00:29:54,900 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-22 00:29:54,901 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-22 00:29:54,901 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-22 00:29:54,903 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-22 00:29:54,903 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-22 00:29:54,904 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-22 00:29:54,906 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-22 00:29:54,907 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-22 00:29:54,909 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-22 00:29:54,909 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-22 00:29:54,911 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-22 00:29:54,912 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-22 00:29:54,913 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-22 00:29:54,913 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-22 00:29:54,914 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-22 00:29:54,914 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-22 00:29:54,915 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-22 00:29:54,915 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-22 00:29:54,916 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-22 00:29:54,916 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-22 00:29:54,917 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-22 00:29:54,918 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-22 00:29:54,918 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-22 00:29:54,919 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-22 00:29:54,919 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-22 00:29:54,919 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-22 00:29:54,920 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-22 00:29:54,921 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-22 00:29:54,921 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-06-22 00:29:54,935 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-22 00:29:54,935 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-22 00:29:54,936 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-22 00:29:54,937 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-22 00:29:54,937 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-22 00:29:54,937 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-22 00:29:54,937 INFO L133 SettingsManager]: * Use SBE=true [2020-06-22 00:29:54,937 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-22 00:29:54,938 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-22 00:29:54,938 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-22 00:29:54,938 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-22 00:29:54,938 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-22 00:29:54,938 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-22 00:29:54,938 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-22 00:29:54,938 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 00:29:54,939 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-22 00:29:54,939 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-22 00:29:54,939 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-22 00:29:54,939 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-22 00:29:54,939 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-22 00:29:54,939 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-22 00:29:54,940 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-22 00:29:54,940 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-22 00:29:54,940 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-22 00:29:54,940 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 00:29:54,940 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-22 00:29:54,941 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-22 00:29:54,941 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-22 00:29:54,941 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-22 00:29:54,966 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-22 00:29:54,978 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-22 00:29:54,982 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-22 00:29:54,983 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-22 00:29:54,983 INFO L276 PluginConnector]: CDTParser initialized [2020-06-22 00:29:54,984 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 00:29:55,044 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/c185b3fa30ba42058470d630493febbb/FLAGe7baf83db [2020-06-22 00:29:55,376 INFO L307 CDTParser]: Found 1 translation units. [2020-06-22 00:29:55,377 INFO L161 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 00:29:55,383 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/c185b3fa30ba42058470d630493febbb/FLAGe7baf83db [2020-06-22 00:29:55,790 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/c185b3fa30ba42058470d630493febbb [2020-06-22 00:29:55,801 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-22 00:29:55,803 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-22 00:29:55,804 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-22 00:29:55,804 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-22 00:29:55,807 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-22 00:29:55,808 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 12:29:55" (1/1) ... [2020-06-22 00:29:55,811 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f2fe5a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 12:29:55, skipping insertion in model container [2020-06-22 00:29:55,812 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 12:29:55" (1/1) ... [2020-06-22 00:29:55,819 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-22 00:29:55,836 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-22 00:29:55,992 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 00:29:55,996 INFO L191 MainTranslator]: Completed pre-run [2020-06-22 00:29:56,013 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 00:29:56,087 INFO L195 MainTranslator]: Completed translation [2020-06-22 00:29:56,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 12:29:56 WrapperNode [2020-06-22 00:29:56,088 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-22 00:29:56,089 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-22 00:29:56,089 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-22 00:29:56,089 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-22 00:29:56,099 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 12:29:56" (1/1) ... [2020-06-22 00:29:56,104 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 12:29:56" (1/1) ... [2020-06-22 00:29:56,124 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-22 00:29:56,125 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-22 00:29:56,125 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-22 00:29:56,125 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-22 00:29:56,135 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 12:29:56" (1/1) ... [2020-06-22 00:29:56,135 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 12:29:56" (1/1) ... [2020-06-22 00:29:56,136 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 12:29:56" (1/1) ... [2020-06-22 00:29:56,136 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 12:29:56" (1/1) ... [2020-06-22 00:29:56,138 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 12:29:56" (1/1) ... [2020-06-22 00:29:56,143 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 12:29:56" (1/1) ... [2020-06-22 00:29:56,144 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 12:29:56" (1/1) ... [2020-06-22 00:29:56,145 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-22 00:29:56,145 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-22 00:29:56,146 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-22 00:29:56,146 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-22 00:29:56,147 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 12:29:56" (1/1) ... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 00:29:56,219 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-22 00:29:56,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-22 00:29:56,366 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-22 00:29:56,367 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. [2020-06-22 00:29:56,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 12:29:56 BoogieIcfgContainer [2020-06-22 00:29:56,368 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-22 00:29:56,369 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-22 00:29:56,369 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-22 00:29:56,371 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-22 00:29:56,372 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 12:29:56" (1/1) ... [2020-06-22 00:29:56,387 INFO L313 BlockEncoder]: Initial Icfg 8 locations, 11 edges [2020-06-22 00:29:56,389 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-22 00:29:56,390 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-22 00:29:56,390 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-22 00:29:56,391 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-22 00:29:56,392 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-22 00:29:56,393 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-22 00:29:56,393 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-22 00:29:56,410 INFO L185 BlockEncoder]: Using Use SBE [2020-06-22 00:29:56,424 INFO L200 BlockEncoder]: SBE split 1 edges [2020-06-22 00:29:56,429 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-06-22 00:29:56,431 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 00:29:56,442 INFO L100 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2020-06-22 00:29:56,444 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-06-22 00:29:56,445 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 00:29:56,445 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 00:29:56,445 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-22 00:29:56,446 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 00:29:56,446 INFO L313 BlockEncoder]: Encoded RCFG 4 locations, 7 edges [2020-06-22 00:29:56,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 12:29:56 BasicIcfg [2020-06-22 00:29:56,446 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-22 00:29:56,447 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-22 00:29:56,447 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-22 00:29:56,451 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-22 00:29:56,451 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.06 12:29:55" (1/4) ... [2020-06-22 00:29:56,452 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bfd823 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 12:29:56, skipping insertion in model container [2020-06-22 00:29:56,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 12:29:56" (2/4) ... [2020-06-22 00:29:56,452 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bfd823 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 12:29:56, skipping insertion in model container [2020-06-22 00:29:56,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 12:29:56" (3/4) ... [2020-06-22 00:29:56,453 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bfd823 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 12:29:56, skipping insertion in model container [2020-06-22 00:29:56,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 12:29:56" (4/4) ... [2020-06-22 00:29:56,454 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 00:29:56,464 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-22 00:29:56,471 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-06-22 00:29:56,489 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-06-22 00:29:56,518 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 00:29:56,519 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-22 00:29:56,519 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-22 00:29:56,519 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 00:29:56,519 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 00:29:56,520 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 00:29:56,520 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-22 00:29:56,520 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 00:29:56,520 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-22 00:29:56,534 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states. [2020-06-22 00:29:56,539 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-06-22 00:29:56,542 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-06-22 00:29:56,591 INFO L448 ceAbstractionStarter]: For program point L16(lines 16 21) no Hoare annotation was computed. [2020-06-22 00:29:56,591 INFO L451 ceAbstractionStarter]: At program point L16-2(lines 11 23) the Hoare annotation is: true [2020-06-22 00:29:56,591 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-06-22 00:29:56,591 INFO L448 ceAbstractionStarter]: For program point L12(lines 12 22) no Hoare annotation was computed. [2020-06-22 00:29:56,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 12:29:56 BasicIcfg [2020-06-22 00:29:56,599 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-22 00:29:56,600 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-22 00:29:56,600 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-22 00:29:56,603 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-22 00:29:56,604 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 00:29:56,604 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.06 12:29:55" (1/5) ... [2020-06-22 00:29:56,605 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2fa12503 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 12:29:56, skipping insertion in model container [2020-06-22 00:29:56,605 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 00:29:56,605 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 12:29:56" (2/5) ... [2020-06-22 00:29:56,605 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2fa12503 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 12:29:56, skipping insertion in model container [2020-06-22 00:29:56,606 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 00:29:56,606 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 12:29:56" (3/5) ... [2020-06-22 00:29:56,606 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2fa12503 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 12:29:56, skipping insertion in model container [2020-06-22 00:29:56,606 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 00:29:56,606 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 12:29:56" (4/5) ... [2020-06-22 00:29:56,607 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2fa12503 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 12:29:56, skipping insertion in model container [2020-06-22 00:29:56,607 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 00:29:56,607 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 12:29:56" (5/5) ... [2020-06-22 00:29:56,608 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 00:29:56,637 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 00:29:56,637 INFO L374 BuchiCegarLoop]: Interprodecural is true [2020-06-22 00:29:56,637 INFO L375 BuchiCegarLoop]: Hoare is true [2020-06-22 00:29:56,637 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 00:29:56,638 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 00:29:56,638 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 00:29:56,638 INFO L379 BuchiCegarLoop]: Difference is false [2020-06-22 00:29:56,638 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 00:29:56,638 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-06-22 00:29:56,641 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states. [2020-06-22 00:29:56,659 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 00:29:56,660 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 00:29:56,660 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 00:29:56,667 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 00:29:56,667 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 00:29:56,667 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2020-06-22 00:29:56,667 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states. [2020-06-22 00:29:56,668 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 00:29:56,668 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 00:29:56,668 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 00:29:56,668 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 00:29:56,669 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 00:29:56,674 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [29] ULTIMATE.startENTRY-->L16-2: Formula: (and (= v_ULTIMATE.start_main_~w~0_1 5) (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~w~0=v_ULTIMATE.start_main_~w~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~w~0] 6#L16-2true [2020-06-22 00:29:56,674 INFO L796 eck$LassoCheckResult]: Loop: 6#L16-2true [43] L16-2-->L12: Formula: (> 0 v_ULTIMATE.start_main_~i~0_12) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_12} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_12} AuxVars[] AssignedVars[] 5#L12true [32] L12-->L16-2: Formula: (and (= 1 (+ v_ULTIMATE.start_main_~i~0_15 v_ULTIMATE.start_main_~i~0_13)) (< (+ v_ULTIMATE.start_main_~i~0_15 v_ULTIMATE.start_main_~w~0_8) 0)) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_15, ULTIMATE.start_main_~w~0=v_ULTIMATE.start_main_~w~0_8} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_13, ULTIMATE.start_main_~w~0=v_ULTIMATE.start_main_~w~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 6#L16-2true [2020-06-22 00:29:56,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 00:29:56,680 INFO L82 PathProgramCache]: Analyzing trace with hash 60, now seen corresponding path program 1 times [2020-06-22 00:29:56,682 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 00:29:56,682 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 00:29:56,709 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:29:56,710 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 00:29:56,710 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:29:56,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 00:29:56,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 00:29:56,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 00:29:56,750 INFO L82 PathProgramCache]: Analyzing trace with hash 2326, now seen corresponding path program 1 times [2020-06-22 00:29:56,750 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 00:29:56,750 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 00:29:56,754 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:29:56,754 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 00:29:56,754 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:29:56,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 00:29:56,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 00:29:56,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 00:29:56,766 INFO L82 PathProgramCache]: Analyzing trace with hash 59025, now seen corresponding path program 1 times [2020-06-22 00:29:56,766 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 00:29:56,766 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 00:29:56,768 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:29:56,768 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 00:29:56,768 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:29:56,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 00:29:56,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 00:29:56,825 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 00:29:56,826 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 00:29:56,826 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 00:29:56,826 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 00:29:56,827 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 00:29:56,827 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 00:29:56,827 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 00:29:56,827 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 00:29:56,827 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 00:29:56,827 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 00:29:56,828 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 00:29:56,847 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 00:29:56,857 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 00:29:56,861 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 00:29:56,940 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 00:29:56,941 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 00:29:56,947 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 00:29:56,948 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 00:29:56,980 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 00:29:56,980 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 00:29:56,989 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 00:29:56,989 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 00:29:57,016 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 00:29:57,017 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 00:29:57,021 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 00:29:57,021 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 00:29:57,054 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 00:29:57,054 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 00:29:57,089 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 00:29:57,091 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 00:29:57,091 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 00:29:57,091 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 00:29:57,091 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 00:29:57,092 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 00:29:57,092 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 00:29:57,092 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 00:29:57,092 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 00:29:57,092 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 00:29:57,092 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 00:29:57,092 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 00:29:57,094 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 00:29:57,098 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 00:29:57,101 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 00:29:57,167 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 00:29:57,172 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 00:29:57,174 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 00:29:57,176 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 00:29:57,176 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 00:29:57,176 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 00:29:57,177 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 00:29:57,181 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 00:29:57,181 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 00:29:57,190 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 00:29:57,191 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 00:29:57,191 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 00:29:57,192 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 00:29:57,192 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 00:29:57,192 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 00:29:57,195 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 00:29:57,195 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 00:29:57,203 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 00:29:57,204 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 00:29:57,205 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 00:29:57,205 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 00:29:57,205 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 00:29:57,206 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 00:29:57,206 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 00:29:57,207 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 00:29:57,207 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 00:29:57,214 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 00:29:57,222 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 00:29:57,222 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 2 variables to zero. [2020-06-22 00:29:57,224 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 00:29:57,224 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 00:29:57,225 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 00:29:57,225 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2020-06-22 00:29:57,226 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 00:29:57,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 00:29:57,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 00:29:57,269 INFO L256 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 00:29:57,271 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 00:29:57,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 00:29:57,281 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 00:29:57,282 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 00:29:57,297 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 00:29:57,322 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-06-22 00:29:57,327 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 00:29:57,329 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 4 states. Second operand 3 states. [2020-06-22 00:29:57,386 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 4 states.. Second operand 3 states. Result 14 states and 25 transitions. Complement of second has 6 states. [2020-06-22 00:29:57,387 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 00:29:57,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-06-22 00:29:57,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2020-06-22 00:29:57,391 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 1 letters. Loop has 2 letters. [2020-06-22 00:29:57,392 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 00:29:57,392 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 3 letters. Loop has 2 letters. [2020-06-22 00:29:57,392 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 00:29:57,393 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 1 letters. Loop has 4 letters. [2020-06-22 00:29:57,393 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 00:29:57,399 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 25 transitions. [2020-06-22 00:29:57,400 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 00:29:57,404 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 10 states and 19 transitions. [2020-06-22 00:29:57,405 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2020-06-22 00:29:57,406 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2020-06-22 00:29:57,406 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 19 transitions. [2020-06-22 00:29:57,408 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 00:29:57,408 INFO L706 BuchiCegarLoop]: Abstraction has 10 states and 19 transitions. [2020-06-22 00:29:57,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 19 transitions. [2020-06-22 00:29:57,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 8. [2020-06-22 00:29:57,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-06-22 00:29:57,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 15 transitions. [2020-06-22 00:29:57,438 INFO L729 BuchiCegarLoop]: Abstraction has 8 states and 15 transitions. [2020-06-22 00:29:57,438 INFO L609 BuchiCegarLoop]: Abstraction has 8 states and 15 transitions. [2020-06-22 00:29:57,439 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2020-06-22 00:29:57,439 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 15 transitions. [2020-06-22 00:29:57,439 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 00:29:57,439 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 00:29:57,439 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 00:29:57,440 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 00:29:57,440 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 00:29:57,440 INFO L794 eck$LassoCheckResult]: Stem: 58#ULTIMATE.startENTRY [29] ULTIMATE.startENTRY-->L16-2: Formula: (and (= v_ULTIMATE.start_main_~w~0_1 5) (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~w~0=v_ULTIMATE.start_main_~w~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~w~0] 59#L16-2 [44] L16-2-->L12: Formula: (< 0 v_ULTIMATE.start_main_~i~0_12) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_12} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_12} AuxVars[] AssignedVars[] 60#L12 [2020-06-22 00:29:57,441 INFO L796 eck$LassoCheckResult]: Loop: 60#L12 [32] L12-->L16-2: Formula: (and (= 1 (+ v_ULTIMATE.start_main_~i~0_15 v_ULTIMATE.start_main_~i~0_13)) (< (+ v_ULTIMATE.start_main_~i~0_15 v_ULTIMATE.start_main_~w~0_8) 0)) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_15, ULTIMATE.start_main_~w~0=v_ULTIMATE.start_main_~w~0_8} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_13, ULTIMATE.start_main_~w~0=v_ULTIMATE.start_main_~w~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 55#L16-2 [43] L16-2-->L12: Formula: (> 0 v_ULTIMATE.start_main_~i~0_12) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_12} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_12} AuxVars[] AssignedVars[] 60#L12 [2020-06-22 00:29:57,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 00:29:57,441 INFO L82 PathProgramCache]: Analyzing trace with hash 1904, now seen corresponding path program 1 times [2020-06-22 00:29:57,441 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 00:29:57,441 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 00:29:57,444 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:29:57,444 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 00:29:57,444 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:29:57,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 00:29:57,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 00:29:57,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 00:29:57,449 INFO L82 PathProgramCache]: Analyzing trace with hash 1996, now seen corresponding path program 2 times [2020-06-22 00:29:57,449 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 00:29:57,449 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 00:29:57,450 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:29:57,450 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 00:29:57,450 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:29:57,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 00:29:57,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 00:29:57,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 00:29:57,456 INFO L82 PathProgramCache]: Analyzing trace with hash 1830779, now seen corresponding path program 1 times [2020-06-22 00:29:57,456 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 00:29:57,456 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 00:29:57,457 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:29:57,457 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 00:29:57,458 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:29:57,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 00:29:57,499 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 00:29:57,501 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 00:29:57,501 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-06-22 00:29:57,516 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 00:29:57,516 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 00:29:57,517 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 00:29:57,517 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 00:29:57,517 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 00:29:57,517 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 00:29:57,517 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 00:29:57,517 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 00:29:57,517 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 00:29:57,517 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 00:29:57,517 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 00:29:57,519 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 00:29:57,522 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 00:29:57,524 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 00:29:57,569 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 00:29:57,569 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 00:29:57,576 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 00:29:57,577 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 00:29:57,603 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 00:29:57,604 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 00:29:57,608 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 00:29:57,608 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 00:29:57,635 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 00:29:57,635 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 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 00:29:57,640 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 00:29:57,640 INFO L163 nArgumentSynthesizer]: Using integer mode. 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 00:29:57,673 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 00:29:57,673 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 00:29:57,843 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 00:29:57,845 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 00:29:57,845 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 00:29:57,845 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 00:29:57,845 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 00:29:57,846 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 00:29:57,846 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 00:29:57,846 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 00:29:57,846 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 00:29:57,846 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 00:29:57,846 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 00:29:57,846 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 00:29:57,848 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 00:29:57,851 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 00:29:57,855 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 00:29:57,914 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 00:29:57,915 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 00:29:57,916 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 00:29:57,917 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 00:29:57,917 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 00:29:57,917 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 00:29:57,917 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 00:29:57,919 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 00:29:57,919 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 00:29:57,923 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 00:29:57,924 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 00:29:57,924 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 00:29:57,925 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 00:29:57,925 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 00:29:57,925 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 00:29:57,927 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 00:29:57,927 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 00:29:57,933 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 00:29:57,933 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 00:29:57,934 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 00:29:57,934 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 00:29:57,934 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 00:29:57,935 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 00:29:57,935 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 00:29:57,935 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 00:29:57,936 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 00:29:57,941 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 00:29:57,945 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 00:29:57,945 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 00:29:57,946 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 00:29:57,946 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 00:29:57,946 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 00:29:57,946 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2020-06-22 00:29:57,947 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 00:29:57,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 00:29:57,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 00:29:57,968 INFO L256 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 00:29:57,968 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 00:29:57,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 00:29:57,972 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 00:29:57,973 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 00:29:57,987 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 00:29:57,988 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-06-22 00:29:57,988 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 00:29:57,989 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 8 states and 15 transitions. cyclomatic complexity: 9 Second operand 3 states. [2020-06-22 00:29:58,088 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 8 states and 15 transitions. cyclomatic complexity: 9. Second operand 3 states. Result 72 states and 118 transitions. Complement of second has 40 states. [2020-06-22 00:29:58,088 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2020-06-22 00:29:58,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-06-22 00:29:58,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 27 transitions. [2020-06-22 00:29:58,090 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 2 letters. Loop has 2 letters. [2020-06-22 00:29:58,091 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 00:29:58,091 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 4 letters. Loop has 2 letters. [2020-06-22 00:29:58,091 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 00:29:58,091 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 2 letters. Loop has 4 letters. [2020-06-22 00:29:58,091 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 00:29:58,093 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 72 states and 118 transitions. [2020-06-22 00:29:58,097 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 41 [2020-06-22 00:29:58,099 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 72 states to 51 states and 90 transitions. [2020-06-22 00:29:58,100 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2020-06-22 00:29:58,100 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 26 [2020-06-22 00:29:58,100 INFO L73 IsDeterministic]: Start isDeterministic. Operand 51 states and 90 transitions. [2020-06-22 00:29:58,100 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 00:29:58,101 INFO L706 BuchiCegarLoop]: Abstraction has 51 states and 90 transitions. [2020-06-22 00:29:58,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states and 90 transitions. [2020-06-22 00:29:58,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 30. [2020-06-22 00:29:58,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-06-22 00:29:58,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 59 transitions. [2020-06-22 00:29:58,105 INFO L729 BuchiCegarLoop]: Abstraction has 30 states and 59 transitions. [2020-06-22 00:29:58,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-06-22 00:29:58,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-06-22 00:29:58,110 INFO L87 Difference]: Start difference. First operand 30 states and 59 transitions. Second operand 4 states. [2020-06-22 00:29:58,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 00:29:58,150 INFO L93 Difference]: Finished difference Result 15 states and 26 transitions. [2020-06-22 00:29:58,150 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-06-22 00:29:58,152 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 26 transitions. [2020-06-22 00:29:58,153 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2020-06-22 00:29:58,153 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 15 states and 26 transitions. [2020-06-22 00:29:58,154 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2020-06-22 00:29:58,154 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2020-06-22 00:29:58,154 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 26 transitions. [2020-06-22 00:29:58,154 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 00:29:58,154 INFO L706 BuchiCegarLoop]: Abstraction has 15 states and 26 transitions. [2020-06-22 00:29:58,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 26 transitions. [2020-06-22 00:29:58,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 12. [2020-06-22 00:29:58,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-06-22 00:29:58,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 21 transitions. [2020-06-22 00:29:58,156 INFO L729 BuchiCegarLoop]: Abstraction has 12 states and 21 transitions. [2020-06-22 00:29:58,156 INFO L609 BuchiCegarLoop]: Abstraction has 12 states and 21 transitions. [2020-06-22 00:29:58,156 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2020-06-22 00:29:58,157 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 21 transitions. [2020-06-22 00:29:58,157 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-06-22 00:29:58,157 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 00:29:58,157 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 00:29:58,158 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 00:29:58,158 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 00:29:58,159 INFO L794 eck$LassoCheckResult]: Stem: 254#ULTIMATE.startENTRY [29] ULTIMATE.startENTRY-->L16-2: Formula: (and (= v_ULTIMATE.start_main_~w~0_1 5) (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~w~0=v_ULTIMATE.start_main_~w~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~w~0] 255#L16-2 [44] L16-2-->L12: Formula: (< 0 v_ULTIMATE.start_main_~i~0_12) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_12} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_12} AuxVars[] AssignedVars[] 260#L12 [2020-06-22 00:29:58,159 INFO L796 eck$LassoCheckResult]: Loop: 260#L12 [41] L12-->L16: Formula: (>= (+ v_ULTIMATE.start_main_~i~0_16 v_ULTIMATE.start_main_~w~0_9) 0) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_16, ULTIMATE.start_main_~w~0=v_ULTIMATE.start_main_~w~0_9} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_16, ULTIMATE.start_main_~w~0=v_ULTIMATE.start_main_~w~0_9} AuxVars[] AssignedVars[] 256#L16 [42] L16-->L16-2: Formula: (and (>= v_ULTIMATE.start_main_~w~0_7 v_ULTIMATE.start_main_~i~0_10) (= v_ULTIMATE.start_main_~i~0_9 0)) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10, ULTIMATE.start_main_~w~0=v_ULTIMATE.start_main_~w~0_7} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9, ULTIMATE.start_main_~w~0=v_ULTIMATE.start_main_~w~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 257#L16-2 [44] L16-2-->L12: Formula: (< 0 v_ULTIMATE.start_main_~i~0_12) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_12} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_12} AuxVars[] AssignedVars[] 260#L12 [2020-06-22 00:29:58,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 00:29:58,159 INFO L82 PathProgramCache]: Analyzing trace with hash 1904, now seen corresponding path program 2 times [2020-06-22 00:29:58,159 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 00:29:58,159 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 00:29:58,161 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:29:58,161 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 00:29:58,161 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:29:58,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 00:29:58,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 00:29:58,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 00:29:58,165 INFO L82 PathProgramCache]: Analyzing trace with hash 70538, now seen corresponding path program 1 times [2020-06-22 00:29:58,165 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 00:29:58,166 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 00:29:58,167 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:29:58,167 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 00:29:58,167 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:29:58,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 00:29:58,177 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 00:29:58,177 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 00:29:58,177 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-06-22 00:29:58,178 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-06-22 00:29:58,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-06-22 00:29:58,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-06-22 00:29:58,178 INFO L87 Difference]: Start difference. First operand 12 states and 21 transitions. cyclomatic complexity: 11 Second operand 3 states. [2020-06-22 00:29:58,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 00:29:58,194 INFO L93 Difference]: Finished difference Result 16 states and 26 transitions. [2020-06-22 00:29:58,195 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-06-22 00:29:58,196 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 26 transitions. [2020-06-22 00:29:58,197 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2020-06-22 00:29:58,197 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 16 states and 26 transitions. [2020-06-22 00:29:58,197 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2020-06-22 00:29:58,198 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2020-06-22 00:29:58,198 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 26 transitions. [2020-06-22 00:29:58,198 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 00:29:58,198 INFO L706 BuchiCegarLoop]: Abstraction has 16 states and 26 transitions. [2020-06-22 00:29:58,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 26 transitions. [2020-06-22 00:29:58,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 14. [2020-06-22 00:29:58,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-06-22 00:29:58,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 23 transitions. [2020-06-22 00:29:58,201 INFO L729 BuchiCegarLoop]: Abstraction has 14 states and 23 transitions. [2020-06-22 00:29:58,201 INFO L609 BuchiCegarLoop]: Abstraction has 14 states and 23 transitions. [2020-06-22 00:29:58,201 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2020-06-22 00:29:58,201 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 23 transitions. [2020-06-22 00:29:58,201 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-06-22 00:29:58,202 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 00:29:58,202 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 00:29:58,202 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 00:29:58,202 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 00:29:58,202 INFO L794 eck$LassoCheckResult]: Stem: 288#ULTIMATE.startENTRY [29] ULTIMATE.startENTRY-->L16-2: Formula: (and (= v_ULTIMATE.start_main_~w~0_1 5) (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~w~0=v_ULTIMATE.start_main_~w~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~w~0] 289#L16-2 [44] L16-2-->L12: Formula: (< 0 v_ULTIMATE.start_main_~i~0_12) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_12} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_12} AuxVars[] AssignedVars[] 296#L12 [2020-06-22 00:29:58,203 INFO L796 eck$LassoCheckResult]: Loop: 296#L12 [41] L12-->L16: Formula: (>= (+ v_ULTIMATE.start_main_~i~0_16 v_ULTIMATE.start_main_~w~0_9) 0) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_16, ULTIMATE.start_main_~w~0=v_ULTIMATE.start_main_~w~0_9} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_16, ULTIMATE.start_main_~w~0=v_ULTIMATE.start_main_~w~0_9} AuxVars[] AssignedVars[] 290#L16 [30] L16-->L16-2: Formula: (and (< v_ULTIMATE.start_main_~w~0_6 v_ULTIMATE.start_main_~i~0_8) (= 0 (+ v_ULTIMATE.start_main_~i~0_6 v_ULTIMATE.start_main_~i~0_8 1))) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8, ULTIMATE.start_main_~w~0=v_ULTIMATE.start_main_~w~0_6} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_6, ULTIMATE.start_main_~w~0=v_ULTIMATE.start_main_~w~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 292#L16-2 [44] L16-2-->L12: Formula: (< 0 v_ULTIMATE.start_main_~i~0_12) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_12} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_12} AuxVars[] AssignedVars[] 296#L12 [2020-06-22 00:29:58,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 00:29:58,203 INFO L82 PathProgramCache]: Analyzing trace with hash 1904, now seen corresponding path program 3 times [2020-06-22 00:29:58,203 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 00:29:58,203 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 00:29:58,204 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:29:58,204 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 00:29:58,205 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:29:58,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 00:29:58,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 00:29:58,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 00:29:58,208 INFO L82 PathProgramCache]: Analyzing trace with hash 70166, now seen corresponding path program 1 times [2020-06-22 00:29:58,209 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 00:29:58,209 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 00:29:58,210 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:29:58,210 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 00:29:58,211 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:29:58,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 00:29:58,230 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 00:29:58,230 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 00:29:58,230 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-06-22 00:29:58,230 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-06-22 00:29:58,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-06-22 00:29:58,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-06-22 00:29:58,231 INFO L87 Difference]: Start difference. First operand 14 states and 23 transitions. cyclomatic complexity: 11 Second operand 4 states. [2020-06-22 00:29:58,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 00:29:58,273 INFO L93 Difference]: Finished difference Result 19 states and 27 transitions. [2020-06-22 00:29:58,274 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-06-22 00:29:58,275 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 27 transitions. [2020-06-22 00:29:58,277 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2020-06-22 00:29:58,277 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 19 states and 27 transitions. [2020-06-22 00:29:58,277 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2020-06-22 00:29:58,277 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2020-06-22 00:29:58,278 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 27 transitions. [2020-06-22 00:29:58,278 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 00:29:58,278 INFO L706 BuchiCegarLoop]: Abstraction has 19 states and 27 transitions. [2020-06-22 00:29:58,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 27 transitions. [2020-06-22 00:29:58,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 17. [2020-06-22 00:29:58,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-06-22 00:29:58,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 25 transitions. [2020-06-22 00:29:58,280 INFO L729 BuchiCegarLoop]: Abstraction has 17 states and 25 transitions. [2020-06-22 00:29:58,280 INFO L609 BuchiCegarLoop]: Abstraction has 17 states and 25 transitions. [2020-06-22 00:29:58,281 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2020-06-22 00:29:58,281 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 25 transitions. [2020-06-22 00:29:58,281 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2020-06-22 00:29:58,281 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 00:29:58,281 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 00:29:58,282 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 00:29:58,282 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 00:29:58,282 INFO L794 eck$LassoCheckResult]: Stem: 334#ULTIMATE.startENTRY [29] ULTIMATE.startENTRY-->L16-2: Formula: (and (= v_ULTIMATE.start_main_~w~0_1 5) (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~w~0=v_ULTIMATE.start_main_~w~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~w~0] 335#L16-2 [44] L16-2-->L12: Formula: (< 0 v_ULTIMATE.start_main_~i~0_12) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_12} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_12} AuxVars[] AssignedVars[] 336#L12 [2020-06-22 00:29:58,282 INFO L796 eck$LassoCheckResult]: Loop: 336#L12 [41] L12-->L16: Formula: (>= (+ v_ULTIMATE.start_main_~i~0_16 v_ULTIMATE.start_main_~w~0_9) 0) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_16, ULTIMATE.start_main_~w~0=v_ULTIMATE.start_main_~w~0_9} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_16, ULTIMATE.start_main_~w~0=v_ULTIMATE.start_main_~w~0_9} AuxVars[] AssignedVars[] 337#L16 [42] L16-->L16-2: Formula: (and (>= v_ULTIMATE.start_main_~w~0_7 v_ULTIMATE.start_main_~i~0_10) (= v_ULTIMATE.start_main_~i~0_9 0)) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10, ULTIMATE.start_main_~w~0=v_ULTIMATE.start_main_~w~0_7} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9, ULTIMATE.start_main_~w~0=v_ULTIMATE.start_main_~w~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 331#L16-2 [43] L16-2-->L12: Formula: (> 0 v_ULTIMATE.start_main_~i~0_12) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_12} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_12} AuxVars[] AssignedVars[] 336#L12 [2020-06-22 00:29:58,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 00:29:58,283 INFO L82 PathProgramCache]: Analyzing trace with hash 1904, now seen corresponding path program 4 times [2020-06-22 00:29:58,283 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 00:29:58,283 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 00:29:58,284 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:29:58,284 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 00:29:58,284 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:29:58,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 00:29:58,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 00:29:58,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 00:29:58,289 INFO L82 PathProgramCache]: Analyzing trace with hash 70537, now seen corresponding path program 1 times [2020-06-22 00:29:58,289 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 00:29:58,289 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 00:29:58,290 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:29:58,290 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 00:29:58,290 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:29:58,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 00:29:58,300 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 00:29:58,300 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 00:29:58,300 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-06-22 00:29:58,301 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-06-22 00:29:58,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-06-22 00:29:58,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-06-22 00:29:58,302 INFO L87 Difference]: Start difference. First operand 17 states and 25 transitions. cyclomatic complexity: 10 Second operand 3 states. [2020-06-22 00:29:58,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 00:29:58,321 INFO L93 Difference]: Finished difference Result 19 states and 26 transitions. [2020-06-22 00:29:58,321 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-06-22 00:29:58,322 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 26 transitions. [2020-06-22 00:29:58,323 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2020-06-22 00:29:58,324 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 15 states and 19 transitions. [2020-06-22 00:29:58,324 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2020-06-22 00:29:58,324 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2020-06-22 00:29:58,324 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 19 transitions. [2020-06-22 00:29:58,324 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 00:29:58,324 INFO L706 BuchiCegarLoop]: Abstraction has 15 states and 19 transitions. [2020-06-22 00:29:58,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 19 transitions. [2020-06-22 00:29:58,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 13. [2020-06-22 00:29:58,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-06-22 00:29:58,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 17 transitions. [2020-06-22 00:29:58,326 INFO L729 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2020-06-22 00:29:58,326 INFO L609 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2020-06-22 00:29:58,326 INFO L442 BuchiCegarLoop]: ======== Iteration 6============ [2020-06-22 00:29:58,326 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 17 transitions. [2020-06-22 00:29:58,327 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-06-22 00:29:58,327 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 00:29:58,327 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 00:29:58,328 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 00:29:58,328 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1, 1] [2020-06-22 00:29:58,328 INFO L794 eck$LassoCheckResult]: Stem: 372#ULTIMATE.startENTRY [29] ULTIMATE.startENTRY-->L16-2: Formula: (and (= v_ULTIMATE.start_main_~w~0_1 5) (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~w~0=v_ULTIMATE.start_main_~w~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~w~0] 373#L16-2 [44] L16-2-->L12: Formula: (< 0 v_ULTIMATE.start_main_~i~0_12) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_12} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_12} AuxVars[] AssignedVars[] 383#L12 [2020-06-22 00:29:58,328 INFO L796 eck$LassoCheckResult]: Loop: 383#L12 [41] L12-->L16: Formula: (>= (+ v_ULTIMATE.start_main_~i~0_16 v_ULTIMATE.start_main_~w~0_9) 0) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_16, ULTIMATE.start_main_~w~0=v_ULTIMATE.start_main_~w~0_9} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_16, ULTIMATE.start_main_~w~0=v_ULTIMATE.start_main_~w~0_9} AuxVars[] AssignedVars[] 374#L16 [30] L16-->L16-2: Formula: (and (< v_ULTIMATE.start_main_~w~0_6 v_ULTIMATE.start_main_~i~0_8) (= 0 (+ v_ULTIMATE.start_main_~i~0_6 v_ULTIMATE.start_main_~i~0_8 1))) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8, ULTIMATE.start_main_~w~0=v_ULTIMATE.start_main_~w~0_6} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_6, ULTIMATE.start_main_~w~0=v_ULTIMATE.start_main_~w~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 375#L16-2 [43] L16-2-->L12: Formula: (> 0 v_ULTIMATE.start_main_~i~0_12) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_12} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_12} AuxVars[] AssignedVars[] 378#L12 [32] L12-->L16-2: Formula: (and (= 1 (+ v_ULTIMATE.start_main_~i~0_15 v_ULTIMATE.start_main_~i~0_13)) (< (+ v_ULTIMATE.start_main_~i~0_15 v_ULTIMATE.start_main_~w~0_8) 0)) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_15, ULTIMATE.start_main_~w~0=v_ULTIMATE.start_main_~w~0_8} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_13, ULTIMATE.start_main_~w~0=v_ULTIMATE.start_main_~w~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 379#L16-2 [43] L16-2-->L12: Formula: (> 0 v_ULTIMATE.start_main_~i~0_12) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_12} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_12} AuxVars[] AssignedVars[] 383#L12 [2020-06-22 00:29:58,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 00:29:58,329 INFO L82 PathProgramCache]: Analyzing trace with hash 1904, now seen corresponding path program 5 times [2020-06-22 00:29:58,329 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 00:29:58,329 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 00:29:58,330 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:29:58,330 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 00:29:58,331 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:29:58,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 00:29:58,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 00:29:58,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 00:29:58,335 INFO L82 PathProgramCache]: Analyzing trace with hash 67429600, now seen corresponding path program 1 times [2020-06-22 00:29:58,335 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 00:29:58,335 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 00:29:58,336 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:29:58,336 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 00:29:58,336 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:29:58,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 00:29:58,353 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 00:29:58,353 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 00:29:58,353 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-06-22 00:29:58,353 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-06-22 00:29:58,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-06-22 00:29:58,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-06-22 00:29:58,354 INFO L87 Difference]: Start difference. First operand 13 states and 17 transitions. cyclomatic complexity: 6 Second operand 4 states. [2020-06-22 00:29:58,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 00:29:58,395 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2020-06-22 00:29:58,395 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-06-22 00:29:58,396 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 17 transitions. [2020-06-22 00:29:58,397 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-06-22 00:29:58,397 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 15 states and 17 transitions. [2020-06-22 00:29:58,397 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2020-06-22 00:29:58,397 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2020-06-22 00:29:58,398 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 17 transitions. [2020-06-22 00:29:58,398 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 00:29:58,398 INFO L706 BuchiCegarLoop]: Abstraction has 15 states and 17 transitions. [2020-06-22 00:29:58,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 17 transitions. [2020-06-22 00:29:58,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 8. [2020-06-22 00:29:58,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-06-22 00:29:58,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 10 transitions. [2020-06-22 00:29:58,400 INFO L729 BuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2020-06-22 00:29:58,400 INFO L609 BuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2020-06-22 00:29:58,400 INFO L442 BuchiCegarLoop]: ======== Iteration 7============ [2020-06-22 00:29:58,400 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 10 transitions. [2020-06-22 00:29:58,400 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-06-22 00:29:58,401 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 00:29:58,401 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 00:29:58,401 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 00:29:58,401 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-06-22 00:29:58,401 INFO L794 eck$LassoCheckResult]: Stem: 407#ULTIMATE.startENTRY [29] ULTIMATE.startENTRY-->L16-2: Formula: (and (= v_ULTIMATE.start_main_~w~0_1 5) (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~w~0=v_ULTIMATE.start_main_~w~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~w~0] 408#L16-2 [44] L16-2-->L12: Formula: (< 0 v_ULTIMATE.start_main_~i~0_12) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_12} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_12} AuxVars[] AssignedVars[] 413#L12 [2020-06-22 00:29:58,402 INFO L796 eck$LassoCheckResult]: Loop: 413#L12 [41] L12-->L16: Formula: (>= (+ v_ULTIMATE.start_main_~i~0_16 v_ULTIMATE.start_main_~w~0_9) 0) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_16, ULTIMATE.start_main_~w~0=v_ULTIMATE.start_main_~w~0_9} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_16, ULTIMATE.start_main_~w~0=v_ULTIMATE.start_main_~w~0_9} AuxVars[] AssignedVars[] 409#L16 [30] L16-->L16-2: Formula: (and (< v_ULTIMATE.start_main_~w~0_6 v_ULTIMATE.start_main_~i~0_8) (= 0 (+ v_ULTIMATE.start_main_~i~0_6 v_ULTIMATE.start_main_~i~0_8 1))) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8, ULTIMATE.start_main_~w~0=v_ULTIMATE.start_main_~w~0_6} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_6, ULTIMATE.start_main_~w~0=v_ULTIMATE.start_main_~w~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 410#L16-2 [43] L16-2-->L12: Formula: (> 0 v_ULTIMATE.start_main_~i~0_12) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_12} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_12} AuxVars[] AssignedVars[] 411#L12 [32] L12-->L16-2: Formula: (and (= 1 (+ v_ULTIMATE.start_main_~i~0_15 v_ULTIMATE.start_main_~i~0_13)) (< (+ v_ULTIMATE.start_main_~i~0_15 v_ULTIMATE.start_main_~w~0_8) 0)) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_15, ULTIMATE.start_main_~w~0=v_ULTIMATE.start_main_~w~0_8} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_13, ULTIMATE.start_main_~w~0=v_ULTIMATE.start_main_~w~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 412#L16-2 [44] L16-2-->L12: Formula: (< 0 v_ULTIMATE.start_main_~i~0_12) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_12} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_12} AuxVars[] AssignedVars[] 413#L12 [2020-06-22 00:29:58,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 00:29:58,402 INFO L82 PathProgramCache]: Analyzing trace with hash 1904, now seen corresponding path program 6 times [2020-06-22 00:29:58,402 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 00:29:58,402 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 00:29:58,404 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:29:58,404 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 00:29:58,404 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:29:58,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 00:29:58,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 00:29:58,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 00:29:58,409 INFO L82 PathProgramCache]: Analyzing trace with hash 67429601, now seen corresponding path program 1 times [2020-06-22 00:29:58,409 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 00:29:58,409 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 00:29:58,410 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:29:58,410 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 00:29:58,410 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:29:58,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 00:29:58,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 00:29:58,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 00:29:58,422 INFO L82 PathProgramCache]: Analyzing trace with hash -1285870894, now seen corresponding path program 1 times [2020-06-22 00:29:58,422 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 00:29:58,422 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 00:29:58,424 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:29:58,424 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 00:29:58,424 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:29:58,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 00:29:58,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 00:29:58,466 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 00:29:58,467 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 00:29:58,467 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 00:29:58,467 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 00:29:58,467 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 00:29:58,467 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 00:29:58,467 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 00:29:58,467 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 00:29:58,467 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration7_Loop [2020-06-22 00:29:58,467 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 00:29:58,468 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 00:29:58,469 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 00:29:58,477 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 00:29:58,484 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 00:29:58,534 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 00:29:58,534 INFO L412 LassoAnalysis]: Checking for nontermination... 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 00:29:58,543 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 00:29:58,543 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 00:29:58,574 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 00:29:58,574 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 00:29:58,605 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 00:29:58,606 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~i~0=7, ULTIMATE.start_main_~w~0=-1} Honda state: {ULTIMATE.start_main_~i~0=7, ULTIMATE.start_main_~w~0=-1} Generalized eigenvectors: [{ULTIMATE.start_main_~i~0=2, ULTIMATE.start_main_~w~0=0}, {ULTIMATE.start_main_~i~0=0, ULTIMATE.start_main_~w~0=0}, {ULTIMATE.start_main_~i~0=0, ULTIMATE.start_main_~w~0=0}] Lambdas: [1, 0, 15] Nus: [0, 0] 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 00:29:58,633 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 00:29:58,633 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 00:29:58,660 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 00:29:58,660 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 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 00:29:58,664 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 00:29:58,664 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 00:29:58,691 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 00:29:58,691 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_5=0} Honda state: {v_rep~unnamed0~0~false_5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2020-06-22 00:29:58,705 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 00:29:58,705 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 00:29:58,705 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 00:29:58,706 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 00:29:58,706 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 00:29:58,706 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 00:29:58,706 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 00:29:58,706 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 00:29:58,706 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration7_Lasso [2020-06-22 00:29:58,706 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 00:29:58,706 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 00:29:58,710 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 00:29:58,714 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 00:29:58,716 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 00:29:58,723 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 00:29:58,736 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 00:29:58,828 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 00:29:58,828 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 00:29:58,831 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 00:29:58,832 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 00:29:58,835 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 00:29:58,835 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 00:29:58,862 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 00:29:58,863 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 00:29:58,869 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 00:29:58,869 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 00:29:58,896 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 00:29:58,897 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 00:29:58,923 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 00:29:58,924 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_6=1} Honda state: {v_rep~unnamed0~0~true_6=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 00:29:58,928 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 00:29:58,928 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 00:29:58,958 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 00:29:58,958 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 00:29:58,990 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 00:29:58,990 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~i~0=0, ULTIMATE.start_main_~w~0=0} Honda state: {ULTIMATE.start_main_~i~0=16, ULTIMATE.start_main_~w~0=5} Generalized eigenvectors: [{ULTIMATE.start_main_~i~0=2, ULTIMATE.start_main_~w~0=0}, {ULTIMATE.start_main_~i~0=0, ULTIMATE.start_main_~w~0=0}, {ULTIMATE.start_main_~i~0=0, ULTIMATE.start_main_~w~0=0}] Lambdas: [1, 4, 4] Nus: [0, 0] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 00:29:59,017 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 00:29:59,018 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 00:29:59,044 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 00:29:59,044 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_6=0} Honda state: {v_rep~unnamed0~0~false_6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2020-06-22 00:29:59,053 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 00:29:59,054 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 00:29:59,055 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 00:29:59,055 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 00:29:59,056 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 00:29:59,056 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 00:29:59,056 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 00:29:59,057 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 00:29:59,057 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 00:29:59,057 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 00:29:59,068 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 12:29:59 BasicIcfg [2020-06-22 00:29:59,068 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-22 00:29:59,069 INFO L168 Benchmark]: Toolchain (without parser) took 3266.80 ms. Allocated memory was 649.6 MB in the beginning and 764.9 MB in the end (delta: 115.3 MB). Free memory was 559.8 MB in the beginning and 688.3 MB in the end (delta: -128.5 MB). Peak memory consumption was 220.7 MB. Max. memory is 50.3 GB. [2020-06-22 00:29:59,070 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 649.6 MB. Free memory is still 580.4 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 00:29:59,070 INFO L168 Benchmark]: CACSL2BoogieTranslator took 284.40 ms. Allocated memory was 649.6 MB in the beginning and 703.1 MB in the end (delta: 53.5 MB). Free memory was 559.8 MB in the beginning and 669.7 MB in the end (delta: -109.9 MB). Peak memory consumption was 30.7 MB. Max. memory is 50.3 GB. [2020-06-22 00:29:59,071 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.94 ms. Allocated memory is still 703.1 MB. Free memory was 669.7 MB in the beginning and 668.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-06-22 00:29:59,072 INFO L168 Benchmark]: Boogie Preprocessor took 20.27 ms. Allocated memory is still 703.1 MB. Free memory was 668.6 MB in the beginning and 667.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-06-22 00:29:59,072 INFO L168 Benchmark]: RCFGBuilder took 222.99 ms. Allocated memory is still 703.1 MB. Free memory was 667.5 MB in the beginning and 652.0 MB in the end (delta: 15.5 MB). Peak memory consumption was 15.5 MB. Max. memory is 50.3 GB. [2020-06-22 00:29:59,073 INFO L168 Benchmark]: BlockEncodingV2 took 77.90 ms. Allocated memory is still 703.1 MB. Free memory was 652.0 MB in the beginning and 646.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. [2020-06-22 00:29:59,073 INFO L168 Benchmark]: TraceAbstraction took 151.89 ms. Allocated memory is still 703.1 MB. Free memory was 646.6 MB in the beginning and 638.0 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 50.3 GB. [2020-06-22 00:29:59,074 INFO L168 Benchmark]: BuchiAutomizer took 2468.42 ms. Allocated memory was 703.1 MB in the beginning and 764.9 MB in the end (delta: 61.9 MB). Free memory was 636.9 MB in the beginning and 688.3 MB in the end (delta: -51.4 MB). Peak memory consumption was 244.3 MB. Max. memory is 50.3 GB. [2020-06-22 00:29:59,078 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 8 locations, 11 edges - StatisticsResult: Encoded RCFG 4 locations, 7 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 649.6 MB. Free memory is still 580.4 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 284.40 ms. Allocated memory was 649.6 MB in the beginning and 703.1 MB in the end (delta: 53.5 MB). Free memory was 559.8 MB in the beginning and 669.7 MB in the end (delta: -109.9 MB). Peak memory consumption was 30.7 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 35.94 ms. Allocated memory is still 703.1 MB. Free memory was 669.7 MB in the beginning and 668.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 20.27 ms. Allocated memory is still 703.1 MB. Free memory was 668.6 MB in the beginning and 667.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * RCFGBuilder took 222.99 ms. Allocated memory is still 703.1 MB. Free memory was 667.5 MB in the beginning and 652.0 MB in the end (delta: 15.5 MB). Peak memory consumption was 15.5 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 77.90 ms. Allocated memory is still 703.1 MB. Free memory was 652.0 MB in the beginning and 646.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. * TraceAbstraction took 151.89 ms. Allocated memory is still 703.1 MB. Free memory was 646.6 MB in the beginning and 638.0 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 2468.42 ms. Allocated memory was 703.1 MB in the beginning and 764.9 MB in the end (delta: 61.9 MB). Free memory was 636.9 MB in the beginning and 688.3 MB in the end (delta: -51.4 MB). Peak memory consumption was 244.3 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false * 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: 11]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 4 locations, 0 error locations. SAFE Result, 0.0s OverallTime, 0 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 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 7 terminating modules (5 trivial, 0 deterministic, 2 nondeterministic) and one nonterminating remainder module.One nondeterministic module has affine ranking function -1 * i and consists of 4 locations. One nondeterministic module has affine ranking function i and consists of 5 locations. 5 modules have a trivial ranking function, the largest among these consists of 4 locations. The remainder module has 8 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.4s and 7 iterations. TraceHistogramMax:2. Analysis of lassos took 1.8s. Construction of modules took 0.1s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 6. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 39 StatesRemovedByMinimization, 7 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 17 states and ocurred in iteration 4. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 14 SDtfs, 40 SDslu, 0 SDs, 0 SdLazy, 168 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI4 SFLT1 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital16 mio100 ax176 hnf100 lsp56 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq141 hnf94 smp100 dnf100 smp100 tf108 neg100 sie115 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 16ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 10 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.6s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - GeometricNonTerminationArgumentResult [Line: 12]: Nontermination argument in form of an infinite program execution. [2020-06-22 00:29:59,087 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 00:29:59,087 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 00:29:59,087 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 00:29:59,088 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 00:29:59,088 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 00:29:59,088 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 00:29:59,089 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 00:29:59,089 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 00:29:59,089 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 00:29:59,090 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 00:29:59,090 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 00:29:59,090 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 00:29:59,091 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 00:29:59,091 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 00:29:59,091 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 00:29:59,092 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 00:29:59,092 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 00:29:59,092 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 00:29:59,092 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 00:29:59,093 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false Nontermination argument in form of an infinite execution {|ULTIMATE.start_main_#t~nondet0|=0, ~unnamed0~0~false=0, ULTIMATE.start_main_~i~0=0, ~unnamed0~0~true=1, |ULTIMATE.start_main_#res|=0, ULTIMATE.start_main_~w~0=0} {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1c8f041e=0, ~unnamed0~0~true=1, \result=0, w=5, ~unnamed0~0~false=0, i=16} {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1c8f041e=0, ~unnamed0~0~true=1, \result=0, w=5, ~unnamed0~0~false=0, i=18} {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1c8f041e=0, ~unnamed0~0~true=1, \result=0, w=5, ~unnamed0~0~false=0, i=20} {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1c8f041e=0, ~unnamed0~0~true=1, \result=0, w=5, ~unnamed0~0~false=0, i=22} {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1c8f041e=0, ~unnamed0~0~true=1, \result=0, w=5, ~unnamed0~0~false=0, i=24} - StatisticsResult: NonterminationArgumentStatistics Unbounded Execution 1GEVs Lambdas: [1, 4, 4] Mus: [0, 0] - NonterminatingLassoResult [Line: 12]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] int w; [L8] i = __VERIFIER_nondet_int() [L9] w = 5 [L11] COND TRUE i != 0 Loop: [L12] COND FALSE !(i < -w) [L16] COND TRUE i > w [L17] i = i+1 [L18] i = i*(-1) [L11] COND TRUE i != 0 [L12] COND TRUE i < -w [L13] i = i-1 [L14] i = i*(-1) [L11] COND TRUE i != 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! !SESSION 2020-06-22 00:29:52.615 ----------------------------------------------- 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 00:29:59.318 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check