YES Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-22 02:52:55,296 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-22 02:52:55,299 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-22 02:52:55,309 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-22 02:52:55,310 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-22 02:52:55,311 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-22 02:52:55,312 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-22 02:52:55,314 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-22 02:52:55,315 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-22 02:52:55,316 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-22 02:52:55,317 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-22 02:52:55,317 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-22 02:52:55,318 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-22 02:52:55,319 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-22 02:52:55,320 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-22 02:52:55,320 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-22 02:52:55,321 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-22 02:52:55,323 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-22 02:52:55,325 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-22 02:52:55,326 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-22 02:52:55,327 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-22 02:52:55,328 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-22 02:52:55,330 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-22 02:52:55,330 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-22 02:52:55,330 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-22 02:52:55,331 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-22 02:52:55,332 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-22 02:52:55,332 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-22 02:52:55,333 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-22 02:52:55,333 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-22 02:52:55,334 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-22 02:52:55,335 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-22 02:52:55,336 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-22 02:52:55,336 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-22 02:52:55,336 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-22 02:52:55,337 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-22 02:52:55,337 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-22 02:52:55,338 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-22 02:52:55,338 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-22 02:52:55,339 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-06-22 02:52:55,353 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-22 02:52:55,353 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-22 02:52:55,354 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-22 02:52:55,354 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-22 02:52:55,354 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-22 02:52:55,354 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-22 02:52:55,355 INFO L133 SettingsManager]: * Use SBE=true [2020-06-22 02:52:55,355 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-22 02:52:55,355 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-22 02:52:55,355 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-22 02:52:55,355 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-22 02:52:55,355 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-22 02:52:55,356 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-22 02:52:55,356 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-22 02:52:55,356 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:52:55,356 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-22 02:52:55,356 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-22 02:52:55,356 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-22 02:52:55,357 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-22 02:52:55,357 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-22 02:52:55,357 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-22 02:52:55,357 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-22 02:52:55,357 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-22 02:52:55,357 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-22 02:52:55,357 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 02:52:55,358 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-22 02:52:55,358 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-22 02:52:55,358 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-22 02:52:55,358 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-22 02:52:55,383 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-22 02:52:55,396 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-22 02:52:55,399 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-22 02:52:55,401 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-22 02:52:55,401 INFO L276 PluginConnector]: CDTParser initialized [2020-06-22 02:52:55,402 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-06-22 02:52:55,467 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/dc34b7eb342441c48ecc851900cb0a1b/FLAGc5d5a9de2 [2020-06-22 02:52:55,797 INFO L307 CDTParser]: Found 1 translation units. [2020-06-22 02:52:55,798 INFO L161 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-06-22 02:52:55,805 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/dc34b7eb342441c48ecc851900cb0a1b/FLAGc5d5a9de2 [2020-06-22 02:52:56,197 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/dc34b7eb342441c48ecc851900cb0a1b [2020-06-22 02:52:56,209 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-22 02:52:56,210 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-22 02:52:56,211 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-22 02:52:56,211 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-22 02:52:56,215 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-22 02:52:56,216 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 02:52:56" (1/1) ... [2020-06-22 02:52:56,220 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7139b21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:52:56, skipping insertion in model container [2020-06-22 02:52:56,220 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 02:52:56" (1/1) ... [2020-06-22 02:52:56,228 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-22 02:52:56,245 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-22 02:52:56,402 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 02:52:56,406 INFO L191 MainTranslator]: Completed pre-run [2020-06-22 02:52:56,423 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 02:52:56,498 INFO L195 MainTranslator]: Completed translation [2020-06-22 02:52:56,498 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:52:56 WrapperNode [2020-06-22 02:52:56,498 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-22 02:52:56,499 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-22 02:52:56,499 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-22 02:52:56,500 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-22 02:52:56,509 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:52:56" (1/1) ... [2020-06-22 02:52:56,514 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:52:56" (1/1) ... [2020-06-22 02:52:56,534 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-22 02:52:56,534 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-22 02:52:56,534 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-22 02:52:56,534 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-22 02:52:56,544 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:52:56" (1/1) ... [2020-06-22 02:52:56,544 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:52:56" (1/1) ... [2020-06-22 02:52:56,545 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:52:56" (1/1) ... [2020-06-22 02:52:56,545 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:52:56" (1/1) ... [2020-06-22 02:52:56,547 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:52:56" (1/1) ... [2020-06-22 02:52:56,552 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:52:56" (1/1) ... [2020-06-22 02:52:56,552 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:52:56" (1/1) ... [2020-06-22 02:52:56,553 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-22 02:52:56,554 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-22 02:52:56,554 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-22 02:52:56,554 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-22 02:52:56,555 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:52:56" (1/1) ... No working directory specified, using /export/starexec/sandbox/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 02:52:56,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-22 02:52:56,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-22 02:52:56,751 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-22 02:52:56,751 INFO L286 CfgBuilder]: Removed 6 assue(true) statements. [2020-06-22 02:52:56,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 02:52:56 BoogieIcfgContainer [2020-06-22 02:52:56,752 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-22 02:52:56,753 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-22 02:52:56,753 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-22 02:52:56,755 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-22 02:52:56,756 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 02:52:56" (1/1) ... [2020-06-22 02:52:56,770 INFO L313 BlockEncoder]: Initial Icfg 10 locations, 14 edges [2020-06-22 02:52:56,772 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-22 02:52:56,772 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-22 02:52:56,773 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-22 02:52:56,773 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-22 02:52:56,775 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-22 02:52:56,776 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-22 02:52:56,776 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-22 02:52:56,792 INFO L185 BlockEncoder]: Using Use SBE [2020-06-22 02:52:56,808 INFO L200 BlockEncoder]: SBE split 4 edges [2020-06-22 02:52:56,813 INFO L70 emoveInfeasibleEdges]: Removed 2 edges and 0 locations because of local infeasibility [2020-06-22 02:52:56,815 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 02:52:56,825 INFO L100 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2020-06-22 02:52:56,828 INFO L70 RemoveSinkStates]: Removed 3 edges and 2 locations by removing sink states [2020-06-22 02:52:56,829 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 02:52:56,829 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 02:52:56,829 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-22 02:52:56,830 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 02:52:56,830 INFO L313 BlockEncoder]: Encoded RCFG 6 locations, 11 edges [2020-06-22 02:52:56,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 02:52:56 BasicIcfg [2020-06-22 02:52:56,830 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-22 02:52:56,831 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-22 02:52:56,831 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-22 02:52:56,835 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-22 02:52:56,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.06 02:52:56" (1/4) ... [2020-06-22 02:52:56,836 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47c567 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 02:52:56, skipping insertion in model container [2020-06-22 02:52:56,836 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:52:56" (2/4) ... [2020-06-22 02:52:56,836 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47c567 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 02:52:56, skipping insertion in model container [2020-06-22 02:52:56,836 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 02:52:56" (3/4) ... [2020-06-22 02:52:56,837 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47c567 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 02:52:56, skipping insertion in model container [2020-06-22 02:52:56,837 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 02:52:56" (4/4) ... [2020-06-22 02:52:56,838 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 02:52:56,849 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-22 02:52:56,857 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-06-22 02:52:56,875 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-06-22 02:52:56,903 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 02:52:56,904 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-22 02:52:56,904 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-22 02:52:56,904 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 02:52:56,904 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 02:52:56,904 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 02:52:56,904 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-22 02:52:56,904 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 02:52:56,905 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-22 02:52:56,918 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2020-06-22 02:52:56,924 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-06-22 02:52:56,927 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 6 states. [2020-06-22 02:52:56,982 INFO L448 ceAbstractionStarter]: For program point L19-2(lines 19 24) no Hoare annotation was computed. [2020-06-22 02:52:56,982 INFO L448 ceAbstractionStarter]: For program point L20-3(lines 20 22) no Hoare annotation was computed. [2020-06-22 02:52:56,983 INFO L451 ceAbstractionStarter]: At program point L18-2(lines 18 26) the Hoare annotation is: true [2020-06-22 02:52:56,983 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-06-22 02:52:56,983 INFO L448 ceAbstractionStarter]: For program point L19(lines 19 24) no Hoare annotation was computed. [2020-06-22 02:52:56,983 INFO L451 ceAbstractionStarter]: At program point L20-2(lines 20 22) the Hoare annotation is: true [2020-06-22 02:52:56,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 02:52:56 BasicIcfg [2020-06-22 02:52:56,991 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-22 02:52:56,992 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-22 02:52:56,992 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-22 02:52:56,995 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-22 02:52:56,996 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 02:52:56,996 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.06 02:52:56" (1/5) ... [2020-06-22 02:52:56,997 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@561c6a64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 02:52:56, skipping insertion in model container [2020-06-22 02:52:56,997 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 02:52:56,997 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:52:56" (2/5) ... [2020-06-22 02:52:56,998 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@561c6a64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 02:52:56, skipping insertion in model container [2020-06-22 02:52:56,998 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 02:52:56,998 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 02:52:56" (3/5) ... [2020-06-22 02:52:56,998 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@561c6a64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 02:52:56, skipping insertion in model container [2020-06-22 02:52:56,999 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 02:52:56,999 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 02:52:56" (4/5) ... [2020-06-22 02:52:56,999 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@561c6a64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 02:52:56, skipping insertion in model container [2020-06-22 02:52:56,999 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 02:52:57,000 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 02:52:56" (5/5) ... [2020-06-22 02:52:57,001 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 02:52:57,028 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 02:52:57,028 INFO L374 BuchiCegarLoop]: Interprodecural is true [2020-06-22 02:52:57,028 INFO L375 BuchiCegarLoop]: Hoare is true [2020-06-22 02:52:57,028 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 02:52:57,029 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 02:52:57,029 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 02:52:57,029 INFO L379 BuchiCegarLoop]: Difference is false [2020-06-22 02:52:57,029 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 02:52:57,029 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-06-22 02:52:57,032 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2020-06-22 02:52:57,050 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-06-22 02:52:57,050 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 02:52:57,051 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 02:52:57,056 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 02:52:57,056 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 02:52:57,056 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2020-06-22 02:52:57,056 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2020-06-22 02:52:57,057 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-06-22 02:52:57,057 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 02:52:57,057 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 02:52:57,058 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 02:52:57,058 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 02:52:57,063 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [39] ULTIMATE.startENTRY-->L18-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 0) (= v_ULTIMATE.start_main_~m~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~x~0_1 v_ULTIMATE.start_main_~m~0_1)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_1, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~m~0, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 4#L18-2true [2020-06-22 02:52:57,063 INFO L796 eck$LassoCheckResult]: Loop: 4#L18-2true [42] L18-2-->L19: Formula: (and (<= 0 v_ULTIMATE.start_main_~y~0_7) (<= 0 v_ULTIMATE.start_main_~x~0_7)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 8#L19true [50] L19-->L19-2: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet1_5|) InVars {ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_5|} OutVars{ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet1] 5#L19-2true [44] L19-2-->L18-2: Formula: (= v_ULTIMATE.start_main_~y~0_11 (+ v_ULTIMATE.start_main_~y~0_12 (- 1))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0] 4#L18-2true [2020-06-22 02:52:57,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:52:57,069 INFO L82 PathProgramCache]: Analyzing trace with hash 70, now seen corresponding path program 1 times [2020-06-22 02:52:57,071 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 02:52:57,072 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 02:52:57,100 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:52:57,100 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 02:52:57,100 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:52:57,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:52:57,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:52:57,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:52:57,142 INFO L82 PathProgramCache]: Analyzing trace with hash 71747, now seen corresponding path program 1 times [2020-06-22 02:52:57,142 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 02:52:57,142 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 02:52:57,144 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:52:57,144 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 02:52:57,144 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:52:57,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:52:57,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:52:57,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:52:57,155 INFO L82 PathProgramCache]: Analyzing trace with hash 2127326, now seen corresponding path program 1 times [2020-06-22 02:52:57,156 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 02:52:57,156 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 02:52:57,157 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:52:57,157 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 02:52:57,158 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:52:57,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:52:57,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:52:57,218 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 02:52:57,219 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 02:52:57,219 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 02:52:57,220 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 02:52:57,220 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 02:52:57,220 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:52:57,220 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 02:52:57,220 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 02:52:57,220 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 02:52:57,221 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 02:52:57,221 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 02:52:57,240 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 02:52:57,251 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 02:52:57,258 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 02:52:57,262 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 02:52:57,269 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 02:52:57,361 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 02:52:57,362 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/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 02:52:57,368 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 02:52:57,368 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 02:52:57,401 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 02:52:57,402 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/sandbox/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 02:52:57,408 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 02:52:57,409 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 02:52:57,436 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 02:52:57,436 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/sandbox/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 02:52:57,440 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 02:52:57,441 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 02:52:57,467 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 02:52:57,468 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=0} Honda state: {ULTIMATE.start_main_~x~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/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 02:52:57,474 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 02:52:57,475 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 02:52:57,479 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 02:52:57,479 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1=0} Honda state: {ULTIMATE.start_main_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/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 02:52:57,508 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 02:52:57,508 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/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 02:52:57,540 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 02:52:57,540 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 02:52:57,571 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 02:52:57,573 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 02:52:57,573 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 02:52:57,573 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 02:52:57,573 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 02:52:57,574 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 02:52:57,574 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 02:52:57,574 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 02:52:57,574 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 02:52:57,574 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 02:52:57,574 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 02:52:57,574 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 02:52:57,576 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 02:52:57,581 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 02:52:57,596 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 02:52:57,602 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 02:52:57,605 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 02:52:57,664 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 02:52:57,670 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 02:52:57,672 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 02:52:57,673 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 02:52:57,673 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 02:52:57,674 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 02:52:57,674 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 02:52:57,678 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 02:52:57,678 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 02:52:57,685 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 02:52:57,686 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 02:52:57,686 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 02:52:57,687 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 02:52:57,687 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 02:52:57,687 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 02:52:57,689 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 02:52:57,689 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 02:52:57,698 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 02:52:57,698 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 02:52:57,699 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 02:52:57,699 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 02:52:57,700 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 02:52:57,700 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 02:52:57,700 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 02:52:57,700 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 02:52:57,701 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 02:52:57,702 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 02:52:57,702 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 02:52:57,703 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 02:52:57,703 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 02:52:57,703 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 02:52:57,703 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 02:52:57,703 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 02:52:57,704 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 02:52:57,704 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 02:52:57,706 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 02:52:57,706 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 02:52:57,707 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 02:52:57,707 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 02:52:57,707 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 02:52:57,707 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 02:52:57,707 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 02:52:57,708 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 02:52:57,708 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 02:52:57,713 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 02:52:57,718 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 02:52:57,718 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2020-06-22 02:52:57,720 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 02:52:57,721 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 02:52:57,721 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 02:52:57,721 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 2*ULTIMATE.start_main_~y~0 + 1 Supporting invariants [] [2020-06-22 02:52:57,723 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 02:52:57,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:52:57,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 02:52:57,759 INFO L256 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 02:52:57,760 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 02:52:57,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 02:52:57,770 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 02:52:57,771 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 02:52:57,787 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 02:52:57,825 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-06-22 02:52:57,830 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 02:52:57,831 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 6 states. Second operand 3 states. [2020-06-22 02:52:57,913 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 6 states.. Second operand 3 states. Result 22 states and 43 transitions. Complement of second has 7 states. [2020-06-22 02:52:57,914 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 2 accepting loop states [2020-06-22 02:52:57,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-06-22 02:52:57,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 28 transitions. [2020-06-22 02:52:57,938 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 1 letters. Loop has 3 letters. [2020-06-22 02:52:57,939 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 02:52:57,939 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 4 letters. Loop has 3 letters. [2020-06-22 02:52:57,940 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 02:52:57,940 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 1 letters. Loop has 6 letters. [2020-06-22 02:52:57,940 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 02:52:57,946 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 43 transitions. [2020-06-22 02:52:57,948 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-06-22 02:52:57,954 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 17 states and 32 transitions. [2020-06-22 02:52:57,955 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2020-06-22 02:52:57,955 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2020-06-22 02:52:57,956 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 32 transitions. [2020-06-22 02:52:57,956 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 02:52:57,956 INFO L706 BuchiCegarLoop]: Abstraction has 17 states and 32 transitions. [2020-06-22 02:52:57,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 32 transitions. [2020-06-22 02:52:57,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 14. [2020-06-22 02:52:57,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-06-22 02:52:57,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 26 transitions. [2020-06-22 02:52:57,988 INFO L729 BuchiCegarLoop]: Abstraction has 14 states and 26 transitions. [2020-06-22 02:52:57,988 INFO L609 BuchiCegarLoop]: Abstraction has 14 states and 26 transitions. [2020-06-22 02:52:57,988 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2020-06-22 02:52:57,989 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 26 transitions. [2020-06-22 02:52:57,989 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-06-22 02:52:57,990 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 02:52:57,990 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 02:52:57,990 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-06-22 02:52:57,990 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-06-22 02:52:57,992 INFO L794 eck$LassoCheckResult]: Stem: 72#ULTIMATE.startENTRY [39] ULTIMATE.startENTRY-->L18-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 0) (= v_ULTIMATE.start_main_~m~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~x~0_1 v_ULTIMATE.start_main_~m~0_1)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_1, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~m~0, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 73#L18-2 [42] L18-2-->L19: Formula: (and (<= 0 v_ULTIMATE.start_main_~y~0_7) (<= 0 v_ULTIMATE.start_main_~x~0_7)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 78#L19 [59] L19-->L20-2: Formula: (> 0 |v_ULTIMATE.start_main_#t~nondet1_3|) InVars {ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_3|} OutVars{ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet1] 83#L20-2 [63] L20-2-->L20-2: Formula: (and (< 0 |v_ULTIMATE.start_main_#t~nondet2_5|) (<= v_ULTIMATE.start_main_~y~0_10 v_ULTIMATE.start_main_~m~0_7) (= v_ULTIMATE.start_main_~y~0_9 (+ v_ULTIMATE.start_main_~y~0_10 1))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~y~0] 84#L20-2 [2020-06-22 02:52:57,992 INFO L796 eck$LassoCheckResult]: Loop: 84#L20-2 [62] L20-2-->L20-2: Formula: (and (<= v_ULTIMATE.start_main_~y~0_10 v_ULTIMATE.start_main_~m~0_7) (= v_ULTIMATE.start_main_~y~0_9 (+ v_ULTIMATE.start_main_~y~0_10 1)) (> 0 |v_ULTIMATE.start_main_#t~nondet2_5|)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~y~0] 84#L20-2 [2020-06-22 02:52:57,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:52:57,992 INFO L82 PathProgramCache]: Analyzing trace with hash 2127624, now seen corresponding path program 1 times [2020-06-22 02:52:57,992 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 02:52:57,992 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 02:52:57,994 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:52:57,994 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 02:52:57,994 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:52:57,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:52:58,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:52:58,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:52:58,006 INFO L82 PathProgramCache]: Analyzing trace with hash 93, now seen corresponding path program 1 times [2020-06-22 02:52:58,007 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 02:52:58,007 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 02:52:58,008 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:52:58,008 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 02:52:58,008 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:52:58,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:52:58,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:52:58,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:52:58,013 INFO L82 PathProgramCache]: Analyzing trace with hash 65956406, now seen corresponding path program 1 times [2020-06-22 02:52:58,013 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 02:52:58,013 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 02:52:58,014 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:52:58,014 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 02:52:58,015 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:52:58,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:52:58,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:52:58,041 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 02:52:58,042 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 02:52:58,042 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 02:52:58,042 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 02:52:58,042 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 02:52:58,042 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:52:58,042 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 02:52:58,042 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 02:52:58,042 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 02:52:58,042 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 02:52:58,043 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 02:52:58,044 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 02:52:58,047 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 02:52:58,051 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 02:52:58,054 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 02:52:58,106 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 02:52:58,106 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/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 02:52:58,111 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 02:52:58,112 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 02:52:58,139 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 02:52:58,139 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/sandbox/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 02:52:58,144 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 02:52:58,145 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 02:52:58,172 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 02:52:58,172 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/sandbox/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 02:52:58,178 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 02:52:58,178 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 02:52:58,206 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 02:52:58,206 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2=-1} Honda state: {ULTIMATE.start_main_#t~nondet2=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/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 02:52:58,212 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 02:52:58,212 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/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 02:52:58,251 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 02:52:58,251 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 02:52:58,430 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 02:52:58,433 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 02:52:58,433 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 02:52:58,433 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 02:52:58,433 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 02:52:58,433 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 02:52:58,433 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 02:52:58,433 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 02:52:58,434 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 02:52:58,434 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 02:52:58,434 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 02:52:58,434 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 02:52:58,435 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 02:52:58,439 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 02:52:58,443 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 02:52:58,448 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 02:52:58,492 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 02:52:58,493 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 02:52:58,494 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 02:52:58,494 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 02:52:58,495 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 02:52:58,495 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 02:52:58,495 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 02:52:58,497 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 02:52:58,497 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 02:52:58,501 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 02:52:58,501 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 02:52:58,502 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 02:52:58,502 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 02:52:58,502 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 02:52:58,502 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 02:52:58,504 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 02:52:58,504 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 02:52:58,510 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 02:52:58,511 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 02:52:58,511 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 02:52:58,511 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 02:52:58,512 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 02:52:58,512 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 02:52:58,512 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 02:52:58,512 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 02:52:58,513 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 02:52:58,515 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 02:52:58,516 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 02:52:58,516 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 02:52:58,516 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 02:52:58,517 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 02:52:58,517 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 02:52:58,517 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 02:52:58,517 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 02:52:58,518 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 02:52:58,522 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 02:52:58,526 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 02:52:58,527 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2020-06-22 02:52:58,527 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 02:52:58,527 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 02:52:58,527 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 02:52:58,528 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~m~0, ULTIMATE.start_main_~y~0) = 2*ULTIMATE.start_main_~m~0 - 2*ULTIMATE.start_main_~y~0 + 1 Supporting invariants [] [2020-06-22 02:52:58,528 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 02:52:58,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:52:58,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 02:52:58,553 INFO L256 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 02:52:58,553 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 02:52:58,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 02:52:58,559 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 02:52:58,560 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 02:52:58,560 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 02:52:58,560 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization [2020-06-22 02:52:58,560 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2020-06-22 02:52:58,561 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 14 states and 26 transitions. cyclomatic complexity: 14 Second operand 2 states. [2020-06-22 02:52:58,588 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 14 states and 26 transitions. cyclomatic complexity: 14. Second operand 2 states. Result 20 states and 41 transitions. Complement of second has 4 states. [2020-06-22 02:52:58,588 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-06-22 02:52:58,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-06-22 02:52:58,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 17 transitions. [2020-06-22 02:52:58,590 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 4 letters. Loop has 1 letters. [2020-06-22 02:52:58,590 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 02:52:58,590 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 5 letters. Loop has 1 letters. [2020-06-22 02:52:58,590 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 02:52:58,590 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 4 letters. Loop has 2 letters. [2020-06-22 02:52:58,591 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 02:52:58,592 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 41 transitions. [2020-06-22 02:52:58,593 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2020-06-22 02:52:58,594 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 18 states and 36 transitions. [2020-06-22 02:52:58,594 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2020-06-22 02:52:58,595 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2020-06-22 02:52:58,595 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 36 transitions. [2020-06-22 02:52:58,595 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 02:52:58,595 INFO L706 BuchiCegarLoop]: Abstraction has 18 states and 36 transitions. [2020-06-22 02:52:58,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 36 transitions. [2020-06-22 02:52:58,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 16. [2020-06-22 02:52:58,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-06-22 02:52:58,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 34 transitions. [2020-06-22 02:52:58,598 INFO L729 BuchiCegarLoop]: Abstraction has 16 states and 34 transitions. [2020-06-22 02:52:58,598 INFO L609 BuchiCegarLoop]: Abstraction has 16 states and 34 transitions. [2020-06-22 02:52:58,598 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2020-06-22 02:52:58,598 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 34 transitions. [2020-06-22 02:52:58,599 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2020-06-22 02:52:58,599 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 02:52:58,599 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 02:52:58,600 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-06-22 02:52:58,600 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-06-22 02:52:58,600 INFO L794 eck$LassoCheckResult]: Stem: 145#ULTIMATE.startENTRY [39] ULTIMATE.startENTRY-->L18-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 0) (= v_ULTIMATE.start_main_~m~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~x~0_1 v_ULTIMATE.start_main_~m~0_1)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_1, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~m~0, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 146#L18-2 [42] L18-2-->L19: Formula: (and (<= 0 v_ULTIMATE.start_main_~y~0_7) (<= 0 v_ULTIMATE.start_main_~x~0_7)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 144#L19 [59] L19-->L20-2: Formula: (> 0 |v_ULTIMATE.start_main_#t~nondet1_3|) InVars {ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_3|} OutVars{ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet1] 151#L20-2 [62] L20-2-->L20-2: Formula: (and (<= v_ULTIMATE.start_main_~y~0_10 v_ULTIMATE.start_main_~m~0_7) (= v_ULTIMATE.start_main_~y~0_9 (+ v_ULTIMATE.start_main_~y~0_10 1)) (> 0 |v_ULTIMATE.start_main_#t~nondet2_5|)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~y~0] 152#L20-2 [2020-06-22 02:52:58,600 INFO L796 eck$LassoCheckResult]: Loop: 152#L20-2 [62] L20-2-->L20-2: Formula: (and (<= v_ULTIMATE.start_main_~y~0_10 v_ULTIMATE.start_main_~m~0_7) (= v_ULTIMATE.start_main_~y~0_9 (+ v_ULTIMATE.start_main_~y~0_10 1)) (> 0 |v_ULTIMATE.start_main_#t~nondet2_5|)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~y~0] 152#L20-2 [2020-06-22 02:52:58,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:52:58,601 INFO L82 PathProgramCache]: Analyzing trace with hash 2127623, now seen corresponding path program 1 times [2020-06-22 02:52:58,601 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 02:52:58,601 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 02:52:58,602 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:52:58,602 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 02:52:58,603 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:52:58,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:52:58,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:52:58,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:52:58,612 INFO L82 PathProgramCache]: Analyzing trace with hash 93, now seen corresponding path program 2 times [2020-06-22 02:52:58,612 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 02:52:58,612 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 02:52:58,614 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:52:58,614 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 02:52:58,614 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:52:58,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:52:58,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:52:58,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:52:58,619 INFO L82 PathProgramCache]: Analyzing trace with hash 65956375, now seen corresponding path program 2 times [2020-06-22 02:52:58,619 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 02:52:58,619 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 02:52:58,620 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:52:58,620 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 02:52:58,620 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:52:58,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:52:58,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:52:58,646 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 02:52:58,646 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 02:52:58,646 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 02:52:58,646 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 02:52:58,646 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 02:52:58,647 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:52:58,647 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 02:52:58,647 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 02:52:58,647 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-06-22 02:52:58,647 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 02:52:58,647 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 02:52:58,648 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 02:52:58,652 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 02:52:58,659 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 02:52:58,662 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 02:52:58,715 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 02:52:58,716 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/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 02:52:58,719 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 02:52:58,720 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 02:52:58,747 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 02:52:58,748 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/sandbox/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 02:52:58,753 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 02:52:58,753 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/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 02:52:58,786 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 02:52:58,786 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 02:52:58,961 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 02:52:58,963 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 02:52:58,963 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 02:52:58,963 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 02:52:58,963 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 02:52:58,963 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 02:52:58,964 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 02:52:58,964 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 02:52:58,964 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 02:52:58,964 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-06-22 02:52:58,964 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 02:52:58,964 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 02:52:58,966 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 02:52:58,976 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 02:52:58,979 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 02:52:58,983 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 02:52:59,024 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 02:52:59,024 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 02:52:59,025 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 02:52:59,025 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 02:52:59,026 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 02:52:59,026 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 02:52:59,026 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 02:52:59,026 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 02:52:59,027 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 02:52:59,027 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 02:52:59,031 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 02:52:59,034 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 02:52:59,034 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2020-06-22 02:52:59,034 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 02:52:59,035 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 02:52:59,035 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 02:52:59,035 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~m~0) = -2*ULTIMATE.start_main_~y~0 + 2*ULTIMATE.start_main_~m~0 + 1 Supporting invariants [] [2020-06-22 02:52:59,035 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 02:52:59,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:52:59,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 02:52:59,062 INFO L256 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 02:52:59,062 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 02:52:59,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 02:52:59,066 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 02:52:59,066 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 02:52:59,066 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 02:52:59,067 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization [2020-06-22 02:52:59,067 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2020-06-22 02:52:59,067 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 16 states and 34 transitions. cyclomatic complexity: 20 Second operand 2 states. [2020-06-22 02:52:59,096 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 16 states and 34 transitions. cyclomatic complexity: 20. Second operand 2 states. Result 27 states and 69 transitions. Complement of second has 4 states. [2020-06-22 02:52:59,096 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-06-22 02:52:59,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-06-22 02:52:59,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 17 transitions. [2020-06-22 02:52:59,097 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 4 letters. Loop has 1 letters. [2020-06-22 02:52:59,097 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 02:52:59,098 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 5 letters. Loop has 1 letters. [2020-06-22 02:52:59,098 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 02:52:59,098 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 4 letters. Loop has 2 letters. [2020-06-22 02:52:59,099 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 02:52:59,100 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 69 transitions. [2020-06-22 02:52:59,102 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 15 [2020-06-22 02:52:59,103 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 24 states and 57 transitions. [2020-06-22 02:52:59,103 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2020-06-22 02:52:59,103 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2020-06-22 02:52:59,103 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 57 transitions. [2020-06-22 02:52:59,103 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 02:52:59,103 INFO L706 BuchiCegarLoop]: Abstraction has 24 states and 57 transitions. [2020-06-22 02:52:59,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 57 transitions. [2020-06-22 02:52:59,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 16. [2020-06-22 02:52:59,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-06-22 02:52:59,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 34 transitions. [2020-06-22 02:52:59,106 INFO L729 BuchiCegarLoop]: Abstraction has 16 states and 34 transitions. [2020-06-22 02:52:59,106 INFO L609 BuchiCegarLoop]: Abstraction has 16 states and 34 transitions. [2020-06-22 02:52:59,106 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2020-06-22 02:52:59,106 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 34 transitions. [2020-06-22 02:52:59,107 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2020-06-22 02:52:59,107 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 02:52:59,107 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 02:52:59,108 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-06-22 02:52:59,108 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2020-06-22 02:52:59,108 INFO L794 eck$LassoCheckResult]: Stem: 222#ULTIMATE.startENTRY [39] ULTIMATE.startENTRY-->L18-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 0) (= v_ULTIMATE.start_main_~m~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~x~0_1 v_ULTIMATE.start_main_~m~0_1)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_1, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~m~0, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 223#L18-2 [42] L18-2-->L19: Formula: (and (<= 0 v_ULTIMATE.start_main_~y~0_7) (<= 0 v_ULTIMATE.start_main_~x~0_7)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 220#L19 [59] L19-->L20-2: Formula: (> 0 |v_ULTIMATE.start_main_#t~nondet1_3|) InVars {ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_3|} OutVars{ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet1] 228#L20-2 [63] L20-2-->L20-2: Formula: (and (< 0 |v_ULTIMATE.start_main_#t~nondet2_5|) (<= v_ULTIMATE.start_main_~y~0_10 v_ULTIMATE.start_main_~m~0_7) (= v_ULTIMATE.start_main_~y~0_9 (+ v_ULTIMATE.start_main_~y~0_10 1))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~y~0] 229#L20-2 [2020-06-22 02:52:59,109 INFO L796 eck$LassoCheckResult]: Loop: 229#L20-2 [60] L20-2-->L20-3: Formula: (> v_ULTIMATE.start_main_~y~0_8 v_ULTIMATE.start_main_~m~0_6) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_6} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_2|, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2] 224#L20-3 [45] L20-3-->L19-2: Formula: (= v_ULTIMATE.start_main_~x~0_8 (+ v_ULTIMATE.start_main_~x~0_9 (- 1))) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 225#L19-2 [44] L19-2-->L18-2: Formula: (= v_ULTIMATE.start_main_~y~0_11 (+ v_ULTIMATE.start_main_~y~0_12 (- 1))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0] 217#L18-2 [42] L18-2-->L19: Formula: (and (<= 0 v_ULTIMATE.start_main_~y~0_7) (<= 0 v_ULTIMATE.start_main_~x~0_7)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 218#L19 [58] L19-->L20-2: Formula: (< 0 |v_ULTIMATE.start_main_#t~nondet1_3|) InVars {ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_3|} OutVars{ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet1] 232#L20-2 [62] L20-2-->L20-2: Formula: (and (<= v_ULTIMATE.start_main_~y~0_10 v_ULTIMATE.start_main_~m~0_7) (= v_ULTIMATE.start_main_~y~0_9 (+ v_ULTIMATE.start_main_~y~0_10 1)) (> 0 |v_ULTIMATE.start_main_#t~nondet2_5|)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~y~0] 229#L20-2 [2020-06-22 02:52:59,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:52:59,109 INFO L82 PathProgramCache]: Analyzing trace with hash 2127624, now seen corresponding path program 2 times [2020-06-22 02:52:59,109 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 02:52:59,109 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 02:52:59,111 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:52:59,111 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 02:52:59,111 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:52:59,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:52:59,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:52:59,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:52:59,118 INFO L82 PathProgramCache]: Analyzing trace with hash -1646803084, now seen corresponding path program 1 times [2020-06-22 02:52:59,118 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 02:52:59,119 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 02:52:59,120 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:52:59,120 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 02:52:59,120 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:52:59,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:52:59,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:52:59,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:52:59,127 INFO L82 PathProgramCache]: Analyzing trace with hash 2110692667, now seen corresponding path program 1 times [2020-06-22 02:52:59,127 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 02:52:59,127 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 02:52:59,128 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:52:59,128 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 02:52:59,128 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:52:59,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 02:52:59,206 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 02:52:59,208 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2020-06-22 02:52:59,208 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2020-06-22 02:52:59,220 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 02:52:59,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 02:52:59,226 INFO L256 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 6 conjunts are in the unsatisfiable core [2020-06-22 02:52:59,227 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 02:52:59,291 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 02:52:59,318 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-06-22 02:52:59,318 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2020-06-22 02:52:59,356 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 02:52:59,356 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 02:52:59,356 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 02:52:59,356 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 02:52:59,357 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 02:52:59,357 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:52:59,357 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 02:52:59,357 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 02:52:59,357 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2020-06-22 02:52:59,357 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 02:52:59,357 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 02:52:59,359 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 02:52:59,361 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 02:52:59,366 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 02:52:59,369 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 02:52:59,372 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 02:52:59,381 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 02:52:59,441 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 02:52:59,442 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/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 02:52:59,445 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 02:52:59,445 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 02:52:59,448 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 02:52:59,448 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2=0} Honda state: {ULTIMATE.start_main_#t~nondet2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/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 02:52:59,476 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 02:52:59,476 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/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 02:52:59,506 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 02:52:59,507 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 02:52:59,562 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 02:52:59,564 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 02:52:59,564 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 02:52:59,564 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 02:52:59,564 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 02:52:59,565 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 02:52:59,565 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 02:52:59,565 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 02:52:59,565 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 02:52:59,565 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2020-06-22 02:52:59,565 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 02:52:59,565 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 02:52:59,567 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 02:52:59,569 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 02:52:59,575 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 02:52:59,578 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 02:52:59,580 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 02:52:59,588 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 02:52:59,650 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 02:52:59,650 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 02:52:59,651 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 02:52:59,651 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 02:52:59,651 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 02:52:59,652 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 02:52:59,652 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 02:52:59,652 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 02:52:59,652 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 02:52:59,652 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 02:52:59,653 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 02:52:59,654 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 02:52:59,654 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 02:52:59,654 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 02:52:59,655 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 02:52:59,655 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 02:52:59,655 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 02:52:59,655 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 02:52:59,655 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 02:52:59,658 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 02:52:59,660 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 02:52:59,660 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 02:52:59,661 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 02:52:59,661 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 02:52:59,661 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 02:52:59,661 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2020-06-22 02:52:59,662 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 02:52:59,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:52:59,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 02:52:59,680 INFO L256 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 02:52:59,680 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 02:52:59,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 02:52:59,686 INFO L256 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 02:52:59,687 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 02:52:59,705 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 02:52:59,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 02:52:59,716 INFO L256 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 02:52:59,716 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 02:52:59,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 02:52:59,746 INFO L256 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 02:52:59,746 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 02:52:59,748 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-06-22 02:52:59,748 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-06-22 02:52:59,748 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 16 states and 34 transitions. cyclomatic complexity: 20 Second operand 5 states. [2020-06-22 02:52:59,827 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 16 states and 34 transitions. cyclomatic complexity: 20. Second operand 5 states. Result 86 states and 241 transitions. Complement of second has 31 states. [2020-06-22 02:52:59,827 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 2 accepting loop states [2020-06-22 02:52:59,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-06-22 02:52:59,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 38 transitions. [2020-06-22 02:52:59,828 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 38 transitions. Stem has 4 letters. Loop has 6 letters. [2020-06-22 02:52:59,828 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 02:52:59,829 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 38 transitions. Stem has 10 letters. Loop has 6 letters. [2020-06-22 02:52:59,829 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 02:52:59,829 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 38 transitions. Stem has 4 letters. Loop has 12 letters. [2020-06-22 02:52:59,830 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 02:52:59,831 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 86 states and 241 transitions. [2020-06-22 02:52:59,836 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2020-06-22 02:52:59,838 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 86 states to 51 states and 117 transitions. [2020-06-22 02:52:59,838 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2020-06-22 02:52:59,838 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2020-06-22 02:52:59,838 INFO L73 IsDeterministic]: Start isDeterministic. Operand 51 states and 117 transitions. [2020-06-22 02:52:59,839 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 02:52:59,839 INFO L706 BuchiCegarLoop]: Abstraction has 51 states and 117 transitions. [2020-06-22 02:52:59,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states and 117 transitions. [2020-06-22 02:52:59,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 33. [2020-06-22 02:52:59,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-06-22 02:52:59,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 69 transitions. [2020-06-22 02:52:59,843 INFO L729 BuchiCegarLoop]: Abstraction has 33 states and 69 transitions. [2020-06-22 02:52:59,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-06-22 02:52:59,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-06-22 02:52:59,847 INFO L87 Difference]: Start difference. First operand 33 states and 69 transitions. Second operand 9 states. [2020-06-22 02:52:59,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 02:52:59,995 INFO L93 Difference]: Finished difference Result 89 states and 158 transitions. [2020-06-22 02:52:59,996 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-06-22 02:52:59,997 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 89 states and 158 transitions. [2020-06-22 02:53:00,000 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 21 [2020-06-22 02:53:00,001 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 89 states to 69 states and 132 transitions. [2020-06-22 02:53:00,002 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 32 [2020-06-22 02:53:00,002 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 32 [2020-06-22 02:53:00,002 INFO L73 IsDeterministic]: Start isDeterministic. Operand 69 states and 132 transitions. [2020-06-22 02:53:00,002 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 02:53:00,002 INFO L706 BuchiCegarLoop]: Abstraction has 69 states and 132 transitions. [2020-06-22 02:53:00,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states and 132 transitions. [2020-06-22 02:53:00,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 51. [2020-06-22 02:53:00,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-06-22 02:53:00,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 104 transitions. [2020-06-22 02:53:00,008 INFO L729 BuchiCegarLoop]: Abstraction has 51 states and 104 transitions. [2020-06-22 02:53:00,008 INFO L609 BuchiCegarLoop]: Abstraction has 51 states and 104 transitions. [2020-06-22 02:53:00,008 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2020-06-22 02:53:00,008 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 51 states and 104 transitions. [2020-06-22 02:53:00,009 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 16 [2020-06-22 02:53:00,009 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 02:53:00,009 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 02:53:00,010 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-06-22 02:53:00,010 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2020-06-22 02:53:00,010 INFO L794 eck$LassoCheckResult]: Stem: 604#ULTIMATE.startENTRY [39] ULTIMATE.startENTRY-->L18-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 0) (= v_ULTIMATE.start_main_~m~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~x~0_1 v_ULTIMATE.start_main_~m~0_1)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_1, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~m~0, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 605#L18-2 [42] L18-2-->L19: Formula: (and (<= 0 v_ULTIMATE.start_main_~y~0_7) (<= 0 v_ULTIMATE.start_main_~x~0_7)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 636#L19 [59] L19-->L20-2: Formula: (> 0 |v_ULTIMATE.start_main_#t~nondet1_3|) InVars {ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_3|} OutVars{ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet1] 635#L20-2 [62] L20-2-->L20-2: Formula: (and (<= v_ULTIMATE.start_main_~y~0_10 v_ULTIMATE.start_main_~m~0_7) (= v_ULTIMATE.start_main_~y~0_9 (+ v_ULTIMATE.start_main_~y~0_10 1)) (> 0 |v_ULTIMATE.start_main_#t~nondet2_5|)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~y~0] 626#L20-2 [2020-06-22 02:53:00,010 INFO L796 eck$LassoCheckResult]: Loop: 626#L20-2 [61] L20-2-->L20-3: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet2_3|) InVars {ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_3|} OutVars{ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2] 625#L20-3 [45] L20-3-->L19-2: Formula: (= v_ULTIMATE.start_main_~x~0_8 (+ v_ULTIMATE.start_main_~x~0_9 (- 1))) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 633#L19-2 [44] L19-2-->L18-2: Formula: (= v_ULTIMATE.start_main_~y~0_11 (+ v_ULTIMATE.start_main_~y~0_12 (- 1))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0] 634#L18-2 [42] L18-2-->L19: Formula: (and (<= 0 v_ULTIMATE.start_main_~y~0_7) (<= 0 v_ULTIMATE.start_main_~x~0_7)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 632#L19 [58] L19-->L20-2: Formula: (< 0 |v_ULTIMATE.start_main_#t~nondet1_3|) InVars {ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_3|} OutVars{ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet1] 624#L20-2 [62] L20-2-->L20-2: Formula: (and (<= v_ULTIMATE.start_main_~y~0_10 v_ULTIMATE.start_main_~m~0_7) (= v_ULTIMATE.start_main_~y~0_9 (+ v_ULTIMATE.start_main_~y~0_10 1)) (> 0 |v_ULTIMATE.start_main_#t~nondet2_5|)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~y~0] 626#L20-2 [2020-06-22 02:53:00,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:53:00,011 INFO L82 PathProgramCache]: Analyzing trace with hash 2127623, now seen corresponding path program 3 times [2020-06-22 02:53:00,011 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 02:53:00,011 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 02:53:00,012 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:53:00,012 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 02:53:00,012 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:53:00,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:53:00,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:53:00,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:53:00,019 INFO L82 PathProgramCache]: Analyzing trace with hash -1618173933, now seen corresponding path program 1 times [2020-06-22 02:53:00,019 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 02:53:00,019 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 02:53:00,020 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:53:00,020 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 02:53:00,020 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:53:00,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:53:00,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:53:00,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:53:00,027 INFO L82 PathProgramCache]: Analyzing trace with hash 1251818137, now seen corresponding path program 1 times [2020-06-22 02:53:00,027 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 02:53:00,027 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 02:53:00,028 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:53:00,028 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 02:53:00,028 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:53:00,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:53:00,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:53:00,071 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 02:53:00,071 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 02:53:00,071 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 02:53:00,071 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 02:53:00,071 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 02:53:00,072 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:53:00,072 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 02:53:00,072 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 02:53:00,072 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration5_Loop [2020-06-22 02:53:00,072 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 02:53:00,072 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 02:53:00,073 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 02:53:00,076 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 02:53:00,083 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 02:53:00,086 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 02:53:00,089 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 02:53:00,092 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 02:53:00,152 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 02:53:00,152 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:53:00,155 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 02:53:00,155 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 02:53:00,181 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 02:53:00,181 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1=1} Honda state: {ULTIMATE.start_main_#t~nondet1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:53:00,187 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 02:53:00,187 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 02:53:00,214 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 02:53:00,214 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=1, ULTIMATE.start_main_~m~0=0} Honda state: {ULTIMATE.start_main_~y~0=1, ULTIMATE.start_main_~m~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:53:00,218 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 02:53:00,218 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 02:53:00,244 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 02:53:00,245 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_9=0} Honda state: {v_rep~unnamed0~0~false_9=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:53:00,248 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 02:53:00,249 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 02:53:00,275 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 02:53:00,275 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_9=1} Honda state: {v_rep~unnamed0~0~true_9=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:53:00,279 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 02:53:00,279 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 02:53:00,282 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 02:53:00,282 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2=0} Honda state: {ULTIMATE.start_main_#t~nondet2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 25 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 25 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:53:00,309 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 02:53:00,309 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 26 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 26 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:53:00,338 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 02:53:00,338 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 02:53:00,389 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 02:53:00,391 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 02:53:00,391 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 02:53:00,391 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 02:53:00,391 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 02:53:00,391 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 02:53:00,391 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 02:53:00,391 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 02:53:00,391 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 02:53:00,392 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration5_Loop [2020-06-22 02:53:00,392 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 02:53:00,392 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 02:53:00,393 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 02:53:00,396 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 02:53:00,402 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 02:53:00,404 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 02:53:00,406 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 02:53:00,408 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 02:53:00,460 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 02:53:00,461 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 02:53:00,461 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 02:53:00,462 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 02:53:00,462 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 02:53:00,462 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 02:53:00,462 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 02:53:00,462 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 02:53:00,463 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 02:53:00,463 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 02:53:00,465 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 02:53:00,465 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 02:53:00,465 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 02:53:00,465 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 02:53:00,465 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 02:53:00,466 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 02:53:00,466 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 02:53:00,466 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 02:53:00,466 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 02:53:00,469 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 02:53:00,469 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 02:53:00,469 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 02:53:00,469 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 02:53:00,470 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 02:53:00,470 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 02:53:00,471 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 02:53:00,471 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 02:53:00,473 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 02:53:00,474 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 02:53:00,474 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 02:53:00,474 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 02:53:00,474 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 02:53:00,474 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 02:53:00,475 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 02:53:00,476 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 02:53:00,479 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 02:53:00,479 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 02:53:00,479 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 02:53:00,480 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 02:53:00,480 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 02:53:00,480 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 02:53:00,480 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 02:53:00,480 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 02:53:00,480 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 02:53:00,481 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 02:53:00,482 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 02:53:00,482 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 02:53:00,482 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 02:53:00,482 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 02:53:00,482 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 02:53:00,482 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 02:53:00,483 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 02:53:00,483 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 02:53:00,485 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 02:53:00,487 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 02:53:00,487 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 02:53:00,487 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 02:53:00,487 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 02:53:00,488 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 02:53:00,488 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2020-06-22 02:53:00,488 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 02:53:00,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:53:00,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 02:53:00,506 INFO L256 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 02:53:00,506 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 02:53:00,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 02:53:00,511 INFO L256 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 02:53:00,512 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 02:53:00,532 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 02:53:00,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 02:53:00,543 INFO L256 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 02:53:00,544 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 02:53:00,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 02:53:00,571 INFO L256 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 02:53:00,572 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 02:53:00,573 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-06-22 02:53:00,574 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-06-22 02:53:00,574 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 51 states and 104 transitions. cyclomatic complexity: 61 Second operand 5 states. [2020-06-22 02:53:00,664 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 51 states and 104 transitions. cyclomatic complexity: 61. Second operand 5 states. Result 354 states and 811 transitions. Complement of second has 31 states. [2020-06-22 02:53:00,665 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 2 accepting loop states [2020-06-22 02:53:00,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-06-22 02:53:00,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 38 transitions. [2020-06-22 02:53:00,666 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 38 transitions. Stem has 4 letters. Loop has 6 letters. [2020-06-22 02:53:00,666 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 02:53:00,666 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 38 transitions. Stem has 10 letters. Loop has 6 letters. [2020-06-22 02:53:00,667 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 02:53:00,667 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 38 transitions. Stem has 4 letters. Loop has 12 letters. [2020-06-22 02:53:00,668 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 02:53:00,669 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 354 states and 811 transitions. [2020-06-22 02:53:00,678 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2020-06-22 02:53:00,682 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 354 states to 201 states and 397 transitions. [2020-06-22 02:53:00,682 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2020-06-22 02:53:00,682 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 40 [2020-06-22 02:53:00,682 INFO L73 IsDeterministic]: Start isDeterministic. Operand 201 states and 397 transitions. [2020-06-22 02:53:00,683 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 02:53:00,683 INFO L706 BuchiCegarLoop]: Abstraction has 201 states and 397 transitions. [2020-06-22 02:53:00,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states and 397 transitions. [2020-06-22 02:53:00,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 35. [2020-06-22 02:53:00,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-06-22 02:53:00,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 65 transitions. [2020-06-22 02:53:00,689 INFO L729 BuchiCegarLoop]: Abstraction has 35 states and 65 transitions. [2020-06-22 02:53:00,689 INFO L609 BuchiCegarLoop]: Abstraction has 35 states and 65 transitions. [2020-06-22 02:53:00,689 INFO L442 BuchiCegarLoop]: ======== Iteration 6============ [2020-06-22 02:53:00,689 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 35 states and 65 transitions. [2020-06-22 02:53:00,690 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 02:53:00,690 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 02:53:00,690 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 02:53:00,691 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1] [2020-06-22 02:53:00,691 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 02:53:00,691 INFO L794 eck$LassoCheckResult]: Stem: 1124#ULTIMATE.startENTRY [39] ULTIMATE.startENTRY-->L18-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 0) (= v_ULTIMATE.start_main_~m~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~x~0_1 v_ULTIMATE.start_main_~m~0_1)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_1, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~m~0, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 1125#L18-2 [42] L18-2-->L19: Formula: (and (<= 0 v_ULTIMATE.start_main_~y~0_7) (<= 0 v_ULTIMATE.start_main_~x~0_7)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 1136#L19 [59] L19-->L20-2: Formula: (> 0 |v_ULTIMATE.start_main_#t~nondet1_3|) InVars {ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_3|} OutVars{ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet1] 1137#L20-2 [63] L20-2-->L20-2: Formula: (and (< 0 |v_ULTIMATE.start_main_#t~nondet2_5|) (<= v_ULTIMATE.start_main_~y~0_10 v_ULTIMATE.start_main_~m~0_7) (= v_ULTIMATE.start_main_~y~0_9 (+ v_ULTIMATE.start_main_~y~0_10 1))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~y~0] 1130#L20-2 [61] L20-2-->L20-3: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet2_3|) InVars {ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_3|} OutVars{ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2] 1131#L20-3 [45] L20-3-->L19-2: Formula: (= v_ULTIMATE.start_main_~x~0_8 (+ v_ULTIMATE.start_main_~x~0_9 (- 1))) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 1152#L19-2 [44] L19-2-->L18-2: Formula: (= v_ULTIMATE.start_main_~y~0_11 (+ v_ULTIMATE.start_main_~y~0_12 (- 1))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0] 1151#L18-2 [42] L18-2-->L19: Formula: (and (<= 0 v_ULTIMATE.start_main_~y~0_7) (<= 0 v_ULTIMATE.start_main_~x~0_7)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 1150#L19 [50] L19-->L19-2: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet1_5|) InVars {ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_5|} OutVars{ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet1] 1126#L19-2 [2020-06-22 02:53:00,691 INFO L796 eck$LassoCheckResult]: Loop: 1126#L19-2 [44] L19-2-->L18-2: Formula: (= v_ULTIMATE.start_main_~y~0_11 (+ v_ULTIMATE.start_main_~y~0_12 (- 1))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0] 1120#L18-2 [42] L18-2-->L19: Formula: (and (<= 0 v_ULTIMATE.start_main_~y~0_7) (<= 0 v_ULTIMATE.start_main_~x~0_7)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 1121#L19 [50] L19-->L19-2: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet1_5|) InVars {ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_5|} OutVars{ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet1] 1126#L19-2 [2020-06-22 02:53:00,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:53:00,692 INFO L82 PathProgramCache]: Analyzing trace with hash 900294364, now seen corresponding path program 1 times [2020-06-22 02:53:00,692 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 02:53:00,692 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 02:53:00,693 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:53:00,693 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 02:53:00,693 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:53:00,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:53:00,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:53:00,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:53:00,702 INFO L82 PathProgramCache]: Analyzing trace with hash 73427, now seen corresponding path program 2 times [2020-06-22 02:53:00,702 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 02:53:00,702 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 02:53:00,703 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:53:00,703 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 02:53:00,703 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:53:00,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:53:00,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:53:00,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:53:00,707 INFO L82 PathProgramCache]: Analyzing trace with hash -1401321960, now seen corresponding path program 2 times [2020-06-22 02:53:00,707 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 02:53:00,707 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 02:53:00,708 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:53:00,708 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 02:53:00,708 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:53:00,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 02:53:00,732 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-06-22 02:53:00,732 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2020-06-22 02:53:00,732 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2020-06-22 02:53:00,743 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2020-06-22 02:53:00,751 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-06-22 02:53:00,751 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-06-22 02:53:00,752 INFO L256 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 5 conjunts are in the unsatisfiable core [2020-06-22 02:53:00,753 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 02:53:00,756 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-06-22 02:53:00,782 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-06-22 02:53:00,782 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2020-06-22 02:53:00,797 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 02:53:00,797 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 02:53:00,797 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 02:53:00,797 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 02:53:00,798 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 02:53:00,798 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:53:00,798 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 02:53:00,798 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 02:53:00,798 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration6_Loop [2020-06-22 02:53:00,798 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 02:53:00,798 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 02:53:00,800 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 02:53:00,803 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 02:53:00,807 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 02:53:00,810 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 02:53:00,813 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 02:53:00,859 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 02:53:00,859 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 28 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 28 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:53:00,863 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 02:53:00,863 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 02:53:00,890 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 02:53:00,890 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_11=0} Honda state: {v_rep~unnamed0~0~false_11=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 29 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 29 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:53:00,894 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 02:53:00,894 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 02:53:00,922 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 02:53:00,922 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_11=1} Honda state: {v_rep~unnamed0~0~true_11=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 30 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 30 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:53:00,927 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 02:53:00,927 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 02:53:00,932 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 02:53:00,932 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1=0} Honda state: {ULTIMATE.start_main_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 31 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 31 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:53:00,959 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 02:53:00,959 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 02:53:00,986 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 02:53:00,986 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=0} Honda state: {ULTIMATE.start_main_~x~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 32 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 32 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:53:00,992 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 02:53:00,992 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 33 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 33 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:53:01,022 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 02:53:01,022 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 02:53:01,079 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 02:53:01,080 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 02:53:01,080 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 02:53:01,081 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 02:53:01,081 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 02:53:01,081 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 02:53:01,081 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 02:53:01,081 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 02:53:01,081 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 02:53:01,081 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration6_Loop [2020-06-22 02:53:01,081 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 02:53:01,081 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 02:53:01,083 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 02:53:01,086 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 02:53:01,088 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 02:53:01,090 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 02:53:01,096 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 02:53:01,133 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 02:53:01,133 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 02:53:01,133 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 02:53:01,134 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 02:53:01,134 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 02:53:01,134 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 02:53:01,134 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 02:53:01,135 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 02:53:01,136 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 02:53:01,139 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 02:53:01,139 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 02:53:01,139 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 02:53:01,139 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 02:53:01,140 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 02:53:01,140 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 02:53:01,140 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 02:53:01,140 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 02:53:01,140 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 02:53:01,141 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 02:53:01,141 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 02:53:01,142 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 02:53:01,142 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 02:53:01,142 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 02:53:01,142 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 02:53:01,142 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 02:53:01,142 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 02:53:01,143 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 02:53:01,143 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 02:53:01,143 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 02:53:01,144 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 02:53:01,144 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 02:53:01,144 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 02:53:01,144 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 02:53:01,144 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 02:53:01,144 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 02:53:01,145 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 02:53:01,146 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 02:53:01,148 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 02:53:01,148 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 02:53:01,149 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 02:53:01,149 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 02:53:01,149 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 02:53:01,149 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2020-06-22 02:53:01,149 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 02:53:01,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:53:01,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 02:53:01,170 INFO L256 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 02:53:01,171 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 02:53:01,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 02:53:01,175 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 02:53:01,175 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 02:53:01,192 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 02:53:01,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 02:53:01,201 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 02:53:01,202 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 02:53:01,203 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-06-22 02:53:01,203 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-06-22 02:53:01,203 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 35 states and 65 transitions. cyclomatic complexity: 35 Second operand 4 states. [2020-06-22 02:53:01,269 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 35 states and 65 transitions. cyclomatic complexity: 35. Second operand 4 states. Result 138 states and 250 transitions. Complement of second has 16 states. [2020-06-22 02:53:01,269 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 2 accepting loop states [2020-06-22 02:53:01,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-06-22 02:53:01,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 32 transitions. [2020-06-22 02:53:01,270 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 32 transitions. Stem has 9 letters. Loop has 3 letters. [2020-06-22 02:53:01,270 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 02:53:01,270 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 32 transitions. Stem has 12 letters. Loop has 3 letters. [2020-06-22 02:53:01,271 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 02:53:01,271 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 32 transitions. Stem has 9 letters. Loop has 6 letters. [2020-06-22 02:53:01,271 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 02:53:01,274 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 138 states and 250 transitions. [2020-06-22 02:53:01,276 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 02:53:01,276 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 138 states to 0 states and 0 transitions. [2020-06-22 02:53:01,276 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-06-22 02:53:01,276 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-06-22 02:53:01,276 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-06-22 02:53:01,276 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 02:53:01,276 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 02:53:01,277 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 02:53:01,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-06-22 02:53:01,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-06-22 02:53:01,277 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 5 states. [2020-06-22 02:53:01,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 02:53:01,277 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-06-22 02:53:01,277 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-06-22 02:53:01,279 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2020-06-22 02:53:01,279 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 02:53:01,279 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2020-06-22 02:53:01,279 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-06-22 02:53:01,279 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-06-22 02:53:01,279 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-06-22 02:53:01,279 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 02:53:01,279 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 02:53:01,280 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 02:53:01,280 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 02:53:01,280 INFO L442 BuchiCegarLoop]: ======== Iteration 7============ [2020-06-22 02:53:01,280 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-06-22 02:53:01,280 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 02:53:01,280 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-06-22 02:53:01,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 02:53:01 BasicIcfg [2020-06-22 02:53:01,287 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-22 02:53:01,287 INFO L168 Benchmark]: Toolchain (without parser) took 5078.09 ms. Allocated memory was 649.6 MB in the beginning and 753.4 MB in the end (delta: 103.8 MB). Free memory was 564.2 MB in the beginning and 382.5 MB in the end (delta: 181.6 MB). Peak memory consumption was 285.4 MB. Max. memory is 50.3 GB. [2020-06-22 02:53:01,289 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 649.6 MB. Free memory is still 585.8 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 02:53:01,289 INFO L168 Benchmark]: CACSL2BoogieTranslator took 287.66 ms. Allocated memory was 649.6 MB in the beginning and 681.1 MB in the end (delta: 31.5 MB). Free memory was 564.2 MB in the beginning and 647.4 MB in the end (delta: -83.2 MB). Peak memory consumption was 30.5 MB. Max. memory is 50.3 GB. [2020-06-22 02:53:01,290 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.59 ms. Allocated memory is still 681.1 MB. Free memory was 647.4 MB in the beginning and 646.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-06-22 02:53:01,290 INFO L168 Benchmark]: Boogie Preprocessor took 19.46 ms. Allocated memory is still 681.1 MB. Free memory was 646.1 MB in the beginning and 644.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-06-22 02:53:01,291 INFO L168 Benchmark]: RCFGBuilder took 198.63 ms. Allocated memory is still 681.1 MB. Free memory was 644.7 MB in the beginning and 630.0 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 50.3 GB. [2020-06-22 02:53:01,293 INFO L168 Benchmark]: BlockEncodingV2 took 77.60 ms. Allocated memory is still 681.1 MB. Free memory was 630.0 MB in the beginning and 624.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. [2020-06-22 02:53:01,293 INFO L168 Benchmark]: TraceAbstraction took 160.34 ms. Allocated memory is still 681.1 MB. Free memory was 623.2 MB in the beginning and 615.2 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 50.3 GB. [2020-06-22 02:53:01,294 INFO L168 Benchmark]: BuchiAutomizer took 4294.80 ms. Allocated memory was 681.1 MB in the beginning and 753.4 MB in the end (delta: 72.4 MB). Free memory was 615.2 MB in the beginning and 382.5 MB in the end (delta: 232.6 MB). Peak memory consumption was 305.0 MB. Max. memory is 50.3 GB. [2020-06-22 02:53:01,298 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 10 locations, 14 edges - StatisticsResult: Encoded RCFG 6 locations, 11 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 585.8 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 287.66 ms. Allocated memory was 649.6 MB in the beginning and 681.1 MB in the end (delta: 31.5 MB). Free memory was 564.2 MB in the beginning and 647.4 MB in the end (delta: -83.2 MB). Peak memory consumption was 30.5 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 34.59 ms. Allocated memory is still 681.1 MB. Free memory was 647.4 MB in the beginning and 646.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 19.46 ms. Allocated memory is still 681.1 MB. Free memory was 646.1 MB in the beginning and 644.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * RCFGBuilder took 198.63 ms. Allocated memory is still 681.1 MB. Free memory was 644.7 MB in the beginning and 630.0 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 77.60 ms. Allocated memory is still 681.1 MB. Free memory was 630.0 MB in the beginning and 624.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. * TraceAbstraction took 160.34 ms. Allocated memory is still 681.1 MB. Free memory was 623.2 MB in the beginning and 615.2 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 4294.80 ms. Allocated memory was 681.1 MB in the beginning and 753.4 MB in the end (delta: 72.4 MB). Free memory was 615.2 MB in the beginning and 382.5 MB in the end (delta: 232.6 MB). Peak memory consumption was 305.0 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 0 error locations. SAFE Result, 0.0s OverallTime, 0 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 2 NumberOfFragments, 2 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 8 terminating modules (2 trivial, 0 deterministic, 6 nondeterministic). One nondeterministic module has affine ranking function 2 * y + 1 and consists of 5 locations. One nondeterministic module has affine ranking function 2 * m + -2 * y + 1 and consists of 3 locations. One nondeterministic module has affine ranking function -2 * y + 2 * m + 1 and consists of 3 locations. One nondeterministic module has affine ranking function x and consists of 6 locations. One nondeterministic module has affine ranking function x and consists of 6 locations. One nondeterministic module has affine ranking function y and consists of 6 locations. 2 modules have a trivial ranking function, the largest among these consists of 9 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.2s and 7 iterations. TraceHistogramMax:2. Analysis of lassos took 3.1s. Construction of modules took 0.2s. Büchi inclusion checks took 0.7s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 6. Automata minimization 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 215 StatesRemovedByMinimization, 6 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 51 states and ocurred in iteration 4. Nontrivial modules had stage [6, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 2/2 HoareTripleCheckerStatistics: 44 SDtfs, 169 SDslu, 114 SDs, 0 SdLazy, 276 SolverSat, 65 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT4 conc0 concLT2 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax170 hnf100 lsp37 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq149 hnf94 smp100 dnf100 smp100 tf112 neg100 sie101 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 14ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 18 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 6 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-06-22 02:52:53.054 ----------------------------------------------- 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/sandbox/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/sandbox/tmp -i /export/starexec/sandbox/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-06-22 02:53:01.532 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check