Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-22 08:12:25,191 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-22 08:12:25,193 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-22 08:12:25,204 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-22 08:12:25,205 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-22 08:12:25,206 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-22 08:12:25,207 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-22 08:12:25,209 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-22 08:12:25,210 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-22 08:12:25,211 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-22 08:12:25,212 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-22 08:12:25,212 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-22 08:12:25,213 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-22 08:12:25,214 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-22 08:12:25,215 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-22 08:12:25,216 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-22 08:12:25,216 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-22 08:12:25,218 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-22 08:12:25,220 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-22 08:12:25,221 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-22 08:12:25,222 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-22 08:12:25,223 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-22 08:12:25,225 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-22 08:12:25,226 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-22 08:12:25,226 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-22 08:12:25,227 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-22 08:12:25,227 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-22 08:12:25,228 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-22 08:12:25,228 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-22 08:12:25,229 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-22 08:12:25,230 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-22 08:12:25,231 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-22 08:12:25,231 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-22 08:12:25,232 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-22 08:12:25,232 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-22 08:12:25,232 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-22 08:12:25,233 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-22 08:12:25,234 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-22 08:12:25,234 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-22 08:12:25,235 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-06-22 08:12:25,249 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-22 08:12:25,249 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-22 08:12:25,250 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-22 08:12:25,250 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-22 08:12:25,251 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-22 08:12:25,251 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-22 08:12:25,251 INFO L133 SettingsManager]: * Use SBE=true [2020-06-22 08:12:25,251 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-22 08:12:25,251 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-22 08:12:25,251 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-22 08:12:25,251 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-22 08:12:25,252 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-22 08:12:25,252 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-22 08:12:25,252 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-22 08:12:25,252 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 08:12:25,252 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-22 08:12:25,252 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-22 08:12:25,253 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-22 08:12:25,253 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-22 08:12:25,253 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-22 08:12:25,253 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-22 08:12:25,253 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-22 08:12:25,253 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-22 08:12:25,254 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-22 08:12:25,254 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 08:12:25,254 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-22 08:12:25,254 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-22 08:12:25,254 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-22 08:12:25,254 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-22 08:12:25,279 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-22 08:12:25,293 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-22 08:12:25,296 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-22 08:12:25,298 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-22 08:12:25,298 INFO L276 PluginConnector]: CDTParser initialized [2020-06-22 08:12:25,299 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-06-22 08:12:25,362 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/642c6772c7b34a5d8dde92bdac00eebe/FLAGc82c15c89 [2020-06-22 08:12:25,705 INFO L307 CDTParser]: Found 1 translation units. [2020-06-22 08:12:25,705 INFO L161 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-06-22 08:12:25,712 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/642c6772c7b34a5d8dde92bdac00eebe/FLAGc82c15c89 [2020-06-22 08:12:26,125 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/642c6772c7b34a5d8dde92bdac00eebe [2020-06-22 08:12:26,136 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-22 08:12:26,138 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-22 08:12:26,139 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-22 08:12:26,139 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-22 08:12:26,143 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-22 08:12:26,144 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 08:12:26" (1/1) ... [2020-06-22 08:12:26,147 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@752a2fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:12:26, skipping insertion in model container [2020-06-22 08:12:26,147 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 08:12:26" (1/1) ... [2020-06-22 08:12:26,155 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-22 08:12:26,173 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-22 08:12:26,331 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 08:12:26,336 INFO L191 MainTranslator]: Completed pre-run [2020-06-22 08:12:26,413 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 08:12:26,428 INFO L195 MainTranslator]: Completed translation [2020-06-22 08:12:26,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:12:26 WrapperNode [2020-06-22 08:12:26,428 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-22 08:12:26,429 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-22 08:12:26,429 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-22 08:12:26,429 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-22 08:12:26,438 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:12:26" (1/1) ... [2020-06-22 08:12:26,444 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:12:26" (1/1) ... [2020-06-22 08:12:26,462 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-22 08:12:26,463 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-22 08:12:26,463 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-22 08:12:26,463 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-22 08:12:26,472 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:12:26" (1/1) ... [2020-06-22 08:12:26,472 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:12:26" (1/1) ... [2020-06-22 08:12:26,473 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:12:26" (1/1) ... [2020-06-22 08:12:26,473 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:12:26" (1/1) ... [2020-06-22 08:12:26,475 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:12:26" (1/1) ... [2020-06-22 08:12:26,479 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:12:26" (1/1) ... [2020-06-22 08:12:26,480 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:12:26" (1/1) ... [2020-06-22 08:12:26,481 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-22 08:12:26,482 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-22 08:12:26,482 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-22 08:12:26,482 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-22 08:12:26,483 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:12:26" (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 08:12:26,547 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-22 08:12:26,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-22 08:12:26,671 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-22 08:12:26,672 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. [2020-06-22 08:12:26,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 08:12:26 BoogieIcfgContainer [2020-06-22 08:12:26,673 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-22 08:12:26,674 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-22 08:12:26,674 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-22 08:12:26,676 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-22 08:12:26,677 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 08:12:26" (1/1) ... [2020-06-22 08:12:26,691 INFO L313 BlockEncoder]: Initial Icfg 8 locations, 10 edges [2020-06-22 08:12:26,693 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-22 08:12:26,693 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-22 08:12:26,694 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-22 08:12:26,694 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-22 08:12:26,696 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-22 08:12:26,697 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-22 08:12:26,697 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-22 08:12:26,713 INFO L185 BlockEncoder]: Using Use SBE [2020-06-22 08:12:26,727 INFO L200 BlockEncoder]: SBE split 1 edges [2020-06-22 08:12:26,732 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-06-22 08:12:26,734 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 08:12:26,746 INFO L100 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2020-06-22 08:12:26,748 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-06-22 08:12:26,749 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 08:12:26,749 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 08:12:26,750 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-22 08:12:26,750 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 08:12:26,750 INFO L313 BlockEncoder]: Encoded RCFG 4 locations, 6 edges [2020-06-22 08:12:26,751 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 08:12:26 BasicIcfg [2020-06-22 08:12:26,751 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-22 08:12:26,752 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-22 08:12:26,752 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-22 08:12:26,755 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-22 08:12:26,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.06 08:12:26" (1/4) ... [2020-06-22 08:12:26,756 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50965415 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 08:12:26, skipping insertion in model container [2020-06-22 08:12:26,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:12:26" (2/4) ... [2020-06-22 08:12:26,756 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50965415 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 08:12:26, skipping insertion in model container [2020-06-22 08:12:26,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 08:12:26" (3/4) ... [2020-06-22 08:12:26,757 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50965415 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 08:12:26, skipping insertion in model container [2020-06-22 08:12:26,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 08:12:26" (4/4) ... [2020-06-22 08:12:26,759 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 08:12:26,768 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-22 08:12:26,775 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-06-22 08:12:26,792 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-06-22 08:12:26,821 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 08:12:26,822 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-22 08:12:26,822 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-22 08:12:26,823 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 08:12:26,823 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 08:12:26,823 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 08:12:26,823 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-22 08:12:26,823 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 08:12:26,823 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-22 08:12:26,837 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states. [2020-06-22 08:12:26,842 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-06-22 08:12:26,845 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-06-22 08:12:26,894 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-06-22 08:12:26,894 INFO L448 ceAbstractionStarter]: For program point L24(lines 24 28) no Hoare annotation was computed. [2020-06-22 08:12:26,894 INFO L448 ceAbstractionStarter]: For program point L24-2(lines 24 28) no Hoare annotation was computed. [2020-06-22 08:12:26,895 INFO L451 ceAbstractionStarter]: At program point L23-2(lines 23 31) the Hoare annotation is: true [2020-06-22 08:12:26,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 08:12:26 BasicIcfg [2020-06-22 08:12:26,903 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-22 08:12:26,903 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-22 08:12:26,904 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-22 08:12:26,907 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-22 08:12:26,908 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 08:12:26,908 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.06 08:12:26" (1/5) ... [2020-06-22 08:12:26,909 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3c1e6e8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 08:12:26, skipping insertion in model container [2020-06-22 08:12:26,909 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 08:12:26,909 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:12:26" (2/5) ... [2020-06-22 08:12:26,909 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3c1e6e8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 08:12:26, skipping insertion in model container [2020-06-22 08:12:26,910 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 08:12:26,910 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 08:12:26" (3/5) ... [2020-06-22 08:12:26,910 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3c1e6e8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 08:12:26, skipping insertion in model container [2020-06-22 08:12:26,910 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 08:12:26,910 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 08:12:26" (4/5) ... [2020-06-22 08:12:26,911 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3c1e6e8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 08:12:26, skipping insertion in model container [2020-06-22 08:12:26,911 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 08:12:26,911 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 08:12:26" (5/5) ... [2020-06-22 08:12:26,912 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 08:12:26,940 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 08:12:26,940 INFO L374 BuchiCegarLoop]: Interprodecural is true [2020-06-22 08:12:26,940 INFO L375 BuchiCegarLoop]: Hoare is true [2020-06-22 08:12:26,940 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 08:12:26,941 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 08:12:26,941 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 08:12:26,941 INFO L379 BuchiCegarLoop]: Difference is false [2020-06-22 08:12:26,941 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 08:12:26,941 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-06-22 08:12:26,946 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states. [2020-06-22 08:12:26,962 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 08:12:26,963 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 08:12:26,963 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 08:12:26,968 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 08:12:26,968 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 08:12:26,968 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2020-06-22 08:12:26,968 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states. [2020-06-22 08:12:26,969 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 08:12:26,969 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 08:12:26,969 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 08:12:26,970 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 08:12:26,970 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 08:12:26,975 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [28] ULTIMATE.startENTRY-->L23-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~z~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 3#L23-2true [2020-06-22 08:12:26,975 INFO L796 eck$LassoCheckResult]: Loop: 3#L23-2true [27] L23-2-->L24: Formula: (<= 0 v_ULTIMATE.start_main_~x~0_7) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 6#L24true [32] L24-->L24-2: Formula: (and (= 0 |v_ULTIMATE.start_main_#t~nondet3_5|) (= v_ULTIMATE.start_main_~x~0_10 (+ v_ULTIMATE.start_main_~z~0_8 v_ULTIMATE.start_main_~x~0_11))) InVars {ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|} OutVars{ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~x~0] 5#L24-2true [30] L24-2-->L23-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_6 (+ v_ULTIMATE.start_main_~z~0_7 v_ULTIMATE.start_main_~y~0_7)) (= v_ULTIMATE.start_main_~z~0_6 (+ v_ULTIMATE.start_main_~z~0_7 (- 1)))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~z~0] 3#L23-2true [2020-06-22 08:12:26,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:12:26,981 INFO L82 PathProgramCache]: Analyzing trace with hash 59, now seen corresponding path program 1 times [2020-06-22 08:12:26,983 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 08:12:26,983 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 08:12:27,011 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:12:27,011 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 08:12:27,011 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:12:27,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:12:27,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:12:27,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:12:27,052 INFO L82 PathProgramCache]: Analyzing trace with hash 56760, now seen corresponding path program 1 times [2020-06-22 08:12:27,052 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 08:12:27,052 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 08:12:27,054 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:12:27,054 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 08:12:27,054 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:12:27,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:12:27,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:12:27,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:12:27,069 INFO L82 PathProgramCache]: Analyzing trace with hash 1784638, now seen corresponding path program 1 times [2020-06-22 08:12:27,069 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 08:12:27,070 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 08:12:27,071 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:12:27,071 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 08:12:27,071 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:12:27,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:12:27,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:12:27,140 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 08:12:27,141 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 08:12:27,142 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 08:12:27,142 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 08:12:27,142 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 08:12:27,142 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 08:12:27,142 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 08:12:27,142 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 08:12:27,143 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 08:12:27,143 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 08:12:27,143 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 08:12:27,162 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 08:12:27,172 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 08:12:27,177 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 08:12:27,195 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 08:12:27,349 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 08:12:27,350 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 08:12:27,357 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 08:12:27,357 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 08:12:27,390 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 08:12:27,391 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 08:12:27,398 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 08:12:27,398 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 08:12:27,427 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 08:12:27,427 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 08:12:27,433 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 08:12:27,434 INFO L163 nArgumentSynthesizer]: Using integer mode. 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 08:12:27,465 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 08:12:27,465 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 08:12:29,326 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 08:12:29,329 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 08:12:29,329 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 08:12:29,329 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 08:12:29,329 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 08:12:29,329 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 08:12:29,330 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 08:12:29,330 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 08:12:29,330 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 08:12:29,330 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 08:12:29,330 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 08:12:29,330 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 08:12:29,332 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 08:12:29,337 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 08:12:29,340 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 08:12:29,352 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 08:12:29,420 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 08:12:29,426 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 08:12:29,427 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 08:12:29,429 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 08:12:29,429 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 08:12:29,429 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 08:12:29,429 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 08:12:29,434 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 08:12:29,434 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 08:12:29,442 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 08:12:29,443 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 08:12:29,444 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 08:12:29,444 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 08:12:29,444 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 08:12:29,444 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 08:12:29,446 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 08:12:29,447 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 08:12:29,454 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 08:12:29,455 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 08:12:29,455 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 08:12:29,455 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 08:12:29,456 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 08:12:29,456 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 08:12:29,456 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 08:12:29,457 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 08:12:29,458 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 08:12:29,467 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 08:12:29,468 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 08:12:29,468 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 08:12:29,469 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 08:12:29,469 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 08:12:29,469 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 08:12:29,469 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 08:12:29,470 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 08:12:29,470 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 08:12:29,471 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 08:12:29,471 INFO L497 LassoAnalysis]: Using template '2-nested'. [2020-06-22 08:12:29,472 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 08:12:29,472 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 08:12:29,473 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 08:12:29,473 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 08:12:29,473 INFO L207 nArgumentSynthesizer]: 3 template conjuncts. [2020-06-22 08:12:29,476 INFO L402 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2020-06-22 08:12:29,476 INFO L403 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2020-06-22 08:12:29,481 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 08:12:29,481 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 08:12:29,482 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 08:12:29,482 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 08:12:29,482 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 08:12:29,482 INFO L207 nArgumentSynthesizer]: 3 template conjuncts. [2020-06-22 08:12:29,486 INFO L402 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2020-06-22 08:12:29,486 INFO L403 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2020-06-22 08:12:29,495 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 08:12:29,496 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 08:12:29,496 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 08:12:29,496 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 08:12:29,497 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 08:12:29,497 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 08:12:29,497 INFO L207 nArgumentSynthesizer]: 3 template conjuncts. [2020-06-22 08:12:29,499 INFO L402 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-06-22 08:12:29,499 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 08:12:29,510 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 08:12:29,521 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 08:12:29,521 INFO L444 ModelExtractionUtils]: 4 out of 9 variables were initially zero. Simplification set additionally 0 variables to zero. [2020-06-22 08:12:29,523 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 08:12:29,523 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 08:12:29,524 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 08:12:29,524 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = 2*ULTIMATE.start_main_~z~0 + 1 f1 = 2*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] [2020-06-22 08:12:29,526 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 08:12:29,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:12:29,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 08:12:29,574 INFO L256 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 08:12:29,575 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 08:12:29,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 08:12:29,588 WARN L254 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 6 conjunts are in the unsatisfiable core [2020-06-22 08:12:29,588 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 08:12:29,781 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 08:12:30,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 08:12:30,119 WARN L254 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 6 conjunts are in the unsatisfiable core [2020-06-22 08:12:30,119 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 08:12:30,478 INFO L98 LoopCannibalizer]: 14 predicates before loop cannibalization 19 predicates after loop cannibalization [2020-06-22 08:12:30,483 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 19 loop predicates [2020-06-22 08:12:30,484 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 4 states. Second operand 4 states. [2020-06-22 08:12:31,028 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 4 states.. Second operand 4 states. Result 15 states and 24 transitions. Complement of second has 12 states. [2020-06-22 08:12:31,029 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 5 non-accepting loop states 1 accepting loop states [2020-06-22 08:12:31,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-06-22 08:12:31,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 18 transitions. [2020-06-22 08:12:31,033 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 18 transitions. Stem has 1 letters. Loop has 3 letters. [2020-06-22 08:12:31,034 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 08:12:31,034 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 18 transitions. Stem has 4 letters. Loop has 3 letters. [2020-06-22 08:12:31,035 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 08:12:31,035 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 18 transitions. Stem has 1 letters. Loop has 6 letters. [2020-06-22 08:12:31,035 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 08:12:31,042 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 24 transitions. [2020-06-22 08:12:31,043 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 08:12:31,048 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 10 states and 15 transitions. [2020-06-22 08:12:31,049 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2020-06-22 08:12:31,049 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2020-06-22 08:12:31,050 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 15 transitions. [2020-06-22 08:12:31,050 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 08:12:31,050 INFO L706 BuchiCegarLoop]: Abstraction has 10 states and 15 transitions. [2020-06-22 08:12:31,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 15 transitions. [2020-06-22 08:12:31,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2020-06-22 08:12:31,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-06-22 08:12:31,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 14 transitions. [2020-06-22 08:12:31,079 INFO L729 BuchiCegarLoop]: Abstraction has 9 states and 14 transitions. [2020-06-22 08:12:31,079 INFO L609 BuchiCegarLoop]: Abstraction has 9 states and 14 transitions. [2020-06-22 08:12:31,079 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2020-06-22 08:12:31,079 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 14 transitions. [2020-06-22 08:12:31,080 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 08:12:31,080 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 08:12:31,080 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 08:12:31,082 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-06-22 08:12:31,082 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 08:12:31,082 INFO L794 eck$LassoCheckResult]: Stem: 104#ULTIMATE.startENTRY [28] ULTIMATE.startENTRY-->L23-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~z~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 105#L23-2 [27] L23-2-->L24: Formula: (<= 0 v_ULTIMATE.start_main_~x~0_7) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 103#L24 [38] L24-->L24-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_8 (+ v_ULTIMATE.start_main_~y~0_8 v_ULTIMATE.start_main_~x~0_9)) (> 0 |v_ULTIMATE.start_main_#t~nondet3_3|)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~x~0] 106#L24-2 [2020-06-22 08:12:31,083 INFO L796 eck$LassoCheckResult]: Loop: 106#L24-2 [30] L24-2-->L23-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_6 (+ v_ULTIMATE.start_main_~z~0_7 v_ULTIMATE.start_main_~y~0_7)) (= v_ULTIMATE.start_main_~z~0_6 (+ v_ULTIMATE.start_main_~z~0_7 (- 1)))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~z~0] 99#L23-2 [27] L23-2-->L24: Formula: (<= 0 v_ULTIMATE.start_main_~x~0_7) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 100#L24 [32] L24-->L24-2: Formula: (and (= 0 |v_ULTIMATE.start_main_#t~nondet3_5|) (= v_ULTIMATE.start_main_~x~0_10 (+ v_ULTIMATE.start_main_~z~0_8 v_ULTIMATE.start_main_~x~0_11))) InVars {ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|} OutVars{ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~x~0] 106#L24-2 [2020-06-22 08:12:31,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:12:31,083 INFO L82 PathProgramCache]: Analyzing trace with hash 57574, now seen corresponding path program 1 times [2020-06-22 08:12:31,083 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 08:12:31,083 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 08:12:31,085 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:12:31,085 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 08:12:31,085 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:12:31,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:12:31,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:12:31,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:12:31,093 INFO L82 PathProgramCache]: Analyzing trace with hash 59490, now seen corresponding path program 2 times [2020-06-22 08:12:31,093 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 08:12:31,093 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 08:12:31,094 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:12:31,094 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 08:12:31,095 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:12:31,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:12:31,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:12:31,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:12:31,101 INFO L82 PathProgramCache]: Analyzing trace with hash 1715216733, now seen corresponding path program 1 times [2020-06-22 08:12:31,101 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 08:12:31,101 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 08:12:31,102 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:12:31,102 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 08:12:31,102 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:12:31,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:12:31,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:12:31,132 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 08:12:31,132 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 08:12:31,132 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 08:12:31,132 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 08:12:31,133 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 08:12:31,133 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 08:12:31,133 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 08:12:31,133 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 08:12:31,133 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 08:12:31,133 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 08:12:31,133 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 08:12:31,135 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 08:12:31,137 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 08:12:31,140 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 08:12:31,142 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 08:12:31,206 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 08:12:31,206 INFO L412 LassoAnalysis]: Checking for nontermination... 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 08:12:31,209 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 08:12:31,209 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 08:12:31,236 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 08:12:31,236 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 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 08:12:31,241 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 08:12:31,241 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 08:12:31,244 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 08:12:31,244 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3=0} Honda state: {ULTIMATE.start_main_#t~nondet3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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 08:12:31,271 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 08:12:31,271 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 08:12:31,298 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 08:12:31,298 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 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 08:12:31,303 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 08:12:31,303 INFO L163 nArgumentSynthesizer]: Using integer mode. 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 08:12:31,334 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 08:12:31,334 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 08:12:31,963 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 08:12:31,966 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 08:12:31,966 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 08:12:31,966 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 08:12:31,966 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 08:12:31,966 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 08:12:31,967 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 08:12:31,967 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 08:12:31,967 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 08:12:31,967 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 08:12:31,967 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 08:12:31,967 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 08:12:31,968 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 08:12:31,972 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 08:12:31,974 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 08:12:31,977 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 08:12:32,049 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 08:12:32,049 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 08:12:32,049 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 08:12:32,050 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 08:12:32,050 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 08:12:32,050 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 08:12:32,051 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 08:12:32,052 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 08:12:32,052 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 08:12:32,055 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 08:12:32,055 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 08:12:32,056 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 08:12:32,056 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 08:12:32,056 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 08:12:32,056 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 08:12:32,056 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 08:12:32,057 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 08:12:32,057 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 08:12:32,058 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 08:12:32,058 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 08:12:32,059 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 08:12:32,059 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 08:12:32,059 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 08:12:32,059 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 08:12:32,060 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 08:12:32,061 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 08:12:32,065 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 08:12:32,065 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 08:12:32,066 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 08:12:32,066 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 08:12:32,066 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 08:12:32,066 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 08:12:32,066 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 08:12:32,067 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 08:12:32,067 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 08:12:32,072 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 08:12:32,072 INFO L497 LassoAnalysis]: Using template '2-nested'. [2020-06-22 08:12:32,073 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 08:12:32,073 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 08:12:32,074 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 08:12:32,074 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 08:12:32,074 INFO L207 nArgumentSynthesizer]: 3 template conjuncts. [2020-06-22 08:12:32,075 INFO L402 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2020-06-22 08:12:32,076 INFO L403 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2020-06-22 08:12:32,078 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 08:12:32,079 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 08:12:32,079 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 08:12:32,079 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 08:12:32,080 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 08:12:32,080 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 08:12:32,080 INFO L207 nArgumentSynthesizer]: 3 template conjuncts. [2020-06-22 08:12:32,080 INFO L402 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-06-22 08:12:32,080 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 08:12:32,081 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 08:12:32,082 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 08:12:32,082 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 08:12:32,082 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 08:12:32,083 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 08:12:32,083 INFO L207 nArgumentSynthesizer]: 3 template conjuncts. [2020-06-22 08:12:32,084 INFO L402 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2020-06-22 08:12:32,084 INFO L403 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2020-06-22 08:12:32,090 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 08:12:32,090 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 08:12:32,091 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 08:12:32,091 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 08:12:32,091 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 08:12:32,091 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 08:12:32,091 INFO L207 nArgumentSynthesizer]: 3 template conjuncts. [2020-06-22 08:12:32,092 INFO L402 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-06-22 08:12:32,092 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 08:12:32,100 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 08:12:32,109 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-06-22 08:12:32,109 INFO L444 ModelExtractionUtils]: 4 out of 9 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 08:12:32,109 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 08:12:32,109 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 08:12:32,110 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 08:12:32,110 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = 2*ULTIMATE.start_main_~z~0 f1 = 2*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] [2020-06-22 08:12:32,110 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 08:12:32,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:12:32,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 08:12:32,143 INFO L256 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 08:12:32,143 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 08:12:32,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 08:12:32,148 WARN L254 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 6 conjunts are in the unsatisfiable core [2020-06-22 08:12:32,149 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 08:12:32,209 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 08:12:32,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:12:32,368 INFO L137 LoopCannibalizer]: termination argument not suffcient for all loop shiftings [2020-06-22 08:12:32,368 INFO L98 LoopCannibalizer]: 9 predicates before loop cannibalization 9 predicates after loop cannibalization [2020-06-22 08:12:32,368 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 9 loop predicates [2020-06-22 08:12:32,368 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 9 states and 14 transitions. cyclomatic complexity: 7 Second operand 4 states. [2020-06-22 08:12:32,560 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 9 states and 14 transitions. cyclomatic complexity: 7. Second operand 4 states. Result 32 states and 51 transitions. Complement of second has 20 states. [2020-06-22 08:12:32,561 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2020-06-22 08:12:32,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-06-22 08:12:32,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 17 transitions. [2020-06-22 08:12:32,562 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 17 transitions. Stem has 3 letters. Loop has 3 letters. [2020-06-22 08:12:32,563 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 08:12:32,563 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 17 transitions. Stem has 6 letters. Loop has 3 letters. [2020-06-22 08:12:32,563 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 08:12:32,563 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 17 transitions. Stem has 3 letters. Loop has 6 letters. [2020-06-22 08:12:32,564 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 08:12:32,565 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 51 transitions. [2020-06-22 08:12:32,567 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2020-06-22 08:12:32,568 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 24 states and 37 transitions. [2020-06-22 08:12:32,568 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2020-06-22 08:12:32,568 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2020-06-22 08:12:32,568 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 37 transitions. [2020-06-22 08:12:32,568 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 08:12:32,568 INFO L706 BuchiCegarLoop]: Abstraction has 24 states and 37 transitions. [2020-06-22 08:12:32,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 37 transitions. [2020-06-22 08:12:32,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 14. [2020-06-22 08:12:32,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-06-22 08:12:32,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 21 transitions. [2020-06-22 08:12:32,572 INFO L729 BuchiCegarLoop]: Abstraction has 14 states and 21 transitions. [2020-06-22 08:12:32,572 INFO L609 BuchiCegarLoop]: Abstraction has 14 states and 21 transitions. [2020-06-22 08:12:32,572 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2020-06-22 08:12:32,572 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 21 transitions. [2020-06-22 08:12:32,573 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2020-06-22 08:12:32,573 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 08:12:32,573 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 08:12:32,573 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 08:12:32,573 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 08:12:32,574 INFO L794 eck$LassoCheckResult]: Stem: 216#ULTIMATE.startENTRY [28] ULTIMATE.startENTRY-->L23-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~z~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 217#L23-2 [27] L23-2-->L24: Formula: (<= 0 v_ULTIMATE.start_main_~x~0_7) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 213#L24 [2020-06-22 08:12:32,574 INFO L796 eck$LassoCheckResult]: Loop: 213#L24 [38] L24-->L24-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_8 (+ v_ULTIMATE.start_main_~y~0_8 v_ULTIMATE.start_main_~x~0_9)) (> 0 |v_ULTIMATE.start_main_#t~nondet3_3|)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~x~0] 222#L24-2 [30] L24-2-->L23-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_6 (+ v_ULTIMATE.start_main_~z~0_7 v_ULTIMATE.start_main_~y~0_7)) (= v_ULTIMATE.start_main_~z~0_6 (+ v_ULTIMATE.start_main_~z~0_7 (- 1)))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~z~0] 212#L23-2 [27] L23-2-->L24: Formula: (<= 0 v_ULTIMATE.start_main_~x~0_7) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 213#L24 [2020-06-22 08:12:32,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:12:32,574 INFO L82 PathProgramCache]: Analyzing trace with hash 1856, now seen corresponding path program 1 times [2020-06-22 08:12:32,574 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 08:12:32,575 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 08:12:32,576 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:12:32,576 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 08:12:32,576 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:12:32,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:12:32,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:12:32,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:12:32,580 INFO L82 PathProgramCache]: Analyzing trace with hash 67266, now seen corresponding path program 1 times [2020-06-22 08:12:32,580 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 08:12:32,580 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 08:12:32,581 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:12:32,581 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 08:12:32,581 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:12:32,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:12:32,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:12:32,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:12:32,586 INFO L82 PathProgramCache]: Analyzing trace with hash 55329571, now seen corresponding path program 1 times [2020-06-22 08:12:32,587 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 08:12:32,587 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 08:12:32,588 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:12:32,588 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 08:12:32,588 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:12:32,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:12:32,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:12:32,616 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 08:12:32,616 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 08:12:32,616 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 08:12:32,616 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 08:12:32,616 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 08:12:32,616 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 08:12:32,617 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 08:12:32,617 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 08:12:32,617 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-06-22 08:12:32,617 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 08:12:32,617 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 08:12:32,618 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 08:12:32,627 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 08:12:32,629 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 08:12:32,633 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 08:12:32,677 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 08:12:32,677 INFO L412 LassoAnalysis]: Checking for nontermination... 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 08:12:32,680 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 08:12:32,680 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 08:12:32,710 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 08:12:32,711 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 08:12:33,743 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 08:12:33,746 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 08:12:33,746 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 08:12:33,747 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 08:12:33,747 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 08:12:33,747 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 08:12:33,747 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 08:12:33,747 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 08:12:33,747 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 08:12:33,747 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-06-22 08:12:33,747 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 08:12:33,747 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 08:12:33,749 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 08:12:33,758 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 08:12:33,761 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 08:12:33,763 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 08:12:33,809 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 08:12:33,810 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 08:12:33,810 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 08:12:33,811 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 08:12:33,811 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 08:12:33,811 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 08:12:33,811 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 08:12:33,811 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 08:12:33,812 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 08:12:33,812 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 08:12:33,817 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 08:12:33,817 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 08:12:33,818 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 08:12:33,818 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 08:12:33,818 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 08:12:33,818 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 08:12:33,818 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 08:12:33,819 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 08:12:33,819 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 08:12:33,821 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 08:12:33,822 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 08:12:33,822 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 08:12:33,822 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 08:12:33,823 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 08:12:33,823 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 08:12:33,824 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 08:12:33,824 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 08:12:33,827 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 08:12:33,827 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 08:12:33,828 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 08:12:33,828 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 08:12:33,828 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 08:12:33,828 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 08:12:33,829 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 08:12:33,829 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 08:12:33,832 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 08:12:33,832 INFO L497 LassoAnalysis]: Using template '2-nested'. [2020-06-22 08:12:33,832 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 08:12:33,832 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 08:12:33,833 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 08:12:33,833 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 08:12:33,833 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 08:12:33,833 INFO L207 nArgumentSynthesizer]: 3 template conjuncts. [2020-06-22 08:12:33,834 INFO L402 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-06-22 08:12:33,834 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 08:12:33,840 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 08:12:33,840 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 08:12:33,840 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 08:12:33,841 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 08:12:33,841 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 08:12:33,841 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 08:12:33,841 INFO L207 nArgumentSynthesizer]: 3 template conjuncts. [2020-06-22 08:12:33,842 INFO L402 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-06-22 08:12:33,842 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 08:12:33,844 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 08:12:33,844 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 08:12:33,845 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 08:12:33,845 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 08:12:33,845 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 08:12:33,845 INFO L207 nArgumentSynthesizer]: 3 template conjuncts. [2020-06-22 08:12:33,847 INFO L402 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2020-06-22 08:12:33,847 INFO L403 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2020-06-22 08:12:33,851 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 08:12:33,852 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 08:12:33,852 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 08:12:33,852 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 08:12:33,852 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 08:12:33,852 INFO L207 nArgumentSynthesizer]: 3 template conjuncts. [2020-06-22 08:12:33,854 INFO L402 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2020-06-22 08:12:33,854 INFO L403 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2020-06-22 08:12:33,856 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 08:12:33,856 INFO L497 LassoAnalysis]: Using template '3-nested'. [2020-06-22 08:12:33,856 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 08:12:33,857 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 08:12:33,857 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 08:12:33,857 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 08:12:33,857 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 08:12:33,858 INFO L207 nArgumentSynthesizer]: 4 template conjuncts. [2020-06-22 08:12:33,858 INFO L402 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-06-22 08:12:33,858 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 08:12:33,866 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 08:12:33,877 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2020-06-22 08:12:33,877 INFO L444 ModelExtractionUtils]: 4 out of 13 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 08:12:33,877 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 08:12:33,877 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 08:12:33,878 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 08:12:33,878 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function 3-nested ranking function: f0 = 2*ULTIMATE.start_main_~z~0 f1 = 2*ULTIMATE.start_main_~z~0 + 2*ULTIMATE.start_main_~y~0 + 1 f2 = 2*ULTIMATE.start_main_~y~0 + 2*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] [2020-06-22 08:12:33,878 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 08:12:33,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:12:33,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 08:12:33,914 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 08:12:33,914 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 08:12:33,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 08:12:33,923 WARN L254 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 7 conjunts are in the unsatisfiable core [2020-06-22 08:12:33,923 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 08:12:34,064 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 08:12:36,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:12:36,773 INFO L137 LoopCannibalizer]: termination argument not suffcient for all loop shiftings [2020-06-22 08:12:36,773 INFO L98 LoopCannibalizer]: 36 predicates before loop cannibalization 36 predicates after loop cannibalization [2020-06-22 08:12:36,773 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 36 loop predicates [2020-06-22 08:12:36,773 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 14 states and 21 transitions. cyclomatic complexity: 9 Second operand 4 states. [2020-06-22 08:12:49,035 WARN L188 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 57 [2020-06-22 08:12:49,375 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 48 [2020-06-22 08:12:51,181 WARN L188 SmtUtils]: Spent 816.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 51 [2020-06-22 08:12:53,789 WARN L188 SmtUtils]: Spent 2.40 s on a formula simplification. DAG size of input: 82 DAG size of output: 43 [2020-06-22 08:12:58,243 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 14 states and 21 transitions. cyclomatic complexity: 9. Second operand 4 states. Result 1194 states and 1833 transitions. Complement of second has 490 states. [2020-06-22 08:12:58,244 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 1 stem states 7 non-accepting loop states 1 accepting loop states [2020-06-22 08:12:58,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-06-22 08:12:58,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 37 transitions. [2020-06-22 08:12:58,245 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 37 transitions. Stem has 2 letters. Loop has 3 letters. [2020-06-22 08:12:58,246 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 08:12:58,246 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-06-22 08:12:58,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:12:58,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 08:12:58,270 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 08:12:58,271 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 08:12:58,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 08:12:58,279 WARN L254 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 7 conjunts are in the unsatisfiable core [2020-06-22 08:12:58,279 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 08:12:58,431 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 08:12:58,432 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2020-06-22 08:12:58,444 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 14 states and 21 transitions. cyclomatic complexity: 9 Second operand 4 states. [2020-06-22 08:13:03,538 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 14 states and 21 transitions. cyclomatic complexity: 9. Second operand 4 states. Result 20 states and 29 transitions. Complement of second has 6 states. [2020-06-22 08:13:03,539 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-06-22 08:13:03,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-06-22 08:13:03,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2020-06-22 08:13:03,551 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 3 letters. [2020-06-22 08:13:03,551 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 08:13:03,551 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-06-22 08:13:03,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:13:03,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 08:13:03,571 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 08:13:03,572 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 08:13:03,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 08:13:03,577 WARN L254 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 7 conjunts are in the unsatisfiable core [2020-06-22 08:13:03,577 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 08:13:03,712 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 08:13:05,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:13:05,378 INFO L137 LoopCannibalizer]: termination argument not suffcient for all loop shiftings [2020-06-22 08:13:05,378 INFO L98 LoopCannibalizer]: 36 predicates before loop cannibalization 36 predicates after loop cannibalization [2020-06-22 08:13:05,378 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemin loopwithout honda bouncer for stem and without honda bouncer for loop.1 stem predicates 36 loop predicates [2020-06-22 08:13:05,379 INFO L104 BuchiDifferenceFKV]: Start buchiDifferenceFKV. First operand 14 states and 21 transitions. cyclomatic complexity: 9 Second operand 4 states. [2020-06-22 08:13:05,570 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 37 [2020-06-22 08:13:06,197 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 34 [2020-06-22 08:13:17,064 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 35 [2020-06-22 08:13:17,333 INFO L108 BuchiDifferenceFKV]: Finished buchiDifferenceFKV. First operand 14 states and 21 transitions. cyclomatic complexity: 9 Second operand 4 states. Result 621 states and 1016 transitions. Complement of second has 285 states 16 powerset states269 rank states. The highest rank that occured is 11 [2020-06-22 08:13:17,334 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 1 stem states 6 non-accepting loop states 1 accepting loop states [2020-06-22 08:13:17,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-06-22 08:13:17,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 38 transitions. [2020-06-22 08:13:17,335 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 38 transitions. Stem has 2 letters. Loop has 3 letters. [2020-06-22 08:13:17,336 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 08:13:17,336 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-06-22 08:13:17,337 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer has thrown an exception: java.lang.AssertionError: no settings was sufficient at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoop.refineBuchi(BuchiCegarLoop.java:810) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoop.iterate(BuchiCegarLoop.java:569) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.doTerminationAnalysis(BuchiAutomizerObserver.java:145) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.finish(BuchiAutomizerObserver.java:384) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-06-22 08:13:17,339 INFO L168 Benchmark]: Toolchain (without parser) took 51202.26 ms. Allocated memory was 649.6 MB in the beginning and 874.5 MB in the end (delta: 224.9 MB). Free memory was 565.3 MB in the beginning and 778.0 MB in the end (delta: -212.7 MB). Peak memory consumption was 12.2 MB. Max. memory is 50.3 GB. [2020-06-22 08:13:17,340 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 649.6 MB. Free memory is still 586.8 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 08:13:17,341 INFO L168 Benchmark]: CACSL2BoogieTranslator took 289.68 ms. Allocated memory was 649.6 MB in the beginning and 700.4 MB in the end (delta: 50.9 MB). Free memory was 565.3 MB in the beginning and 667.1 MB in the end (delta: -101.8 MB). Peak memory consumption was 29.8 MB. Max. memory is 50.3 GB. [2020-06-22 08:13:17,341 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.29 ms. Allocated memory is still 700.4 MB. Free memory was 667.1 MB in the beginning and 664.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 50.3 GB. [2020-06-22 08:13:17,342 INFO L168 Benchmark]: Boogie Preprocessor took 18.77 ms. Allocated memory is still 700.4 MB. Free memory was 664.4 MB in the beginning and 662.6 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 50.3 GB. [2020-06-22 08:13:17,342 INFO L168 Benchmark]: RCFGBuilder took 191.75 ms. Allocated memory is still 700.4 MB. Free memory was 661.3 MB in the beginning and 648.2 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 50.3 GB. [2020-06-22 08:13:17,343 INFO L168 Benchmark]: BlockEncodingV2 took 77.24 ms. Allocated memory is still 700.4 MB. Free memory was 648.2 MB in the beginning and 644.2 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 50.3 GB. [2020-06-22 08:13:17,343 INFO L168 Benchmark]: TraceAbstraction took 151.17 ms. Allocated memory is still 700.4 MB. Free memory was 642.8 MB in the beginning and 634.6 MB in the end (delta: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 50.3 GB. [2020-06-22 08:13:17,344 INFO L168 Benchmark]: BuchiAutomizer took 50435.37 ms. Allocated memory was 700.4 MB in the beginning and 874.5 MB in the end (delta: 174.1 MB). Free memory was 634.6 MB in the beginning and 778.0 MB in the end (delta: -143.4 MB). Peak memory consumption was 30.7 MB. Max. memory is 50.3 GB. [2020-06-22 08:13:17,349 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 8 locations, 10 edges - StatisticsResult: Encoded RCFG 4 locations, 6 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 586.8 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 289.68 ms. Allocated memory was 649.6 MB in the beginning and 700.4 MB in the end (delta: 50.9 MB). Free memory was 565.3 MB in the beginning and 667.1 MB in the end (delta: -101.8 MB). Peak memory consumption was 29.8 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 33.29 ms. Allocated memory is still 700.4 MB. Free memory was 667.1 MB in the beginning and 664.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 18.77 ms. Allocated memory is still 700.4 MB. Free memory was 664.4 MB in the beginning and 662.6 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 50.3 GB. * RCFGBuilder took 191.75 ms. Allocated memory is still 700.4 MB. Free memory was 661.3 MB in the beginning and 648.2 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 77.24 ms. Allocated memory is still 700.4 MB. Free memory was 648.2 MB in the beginning and 644.2 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 50.3 GB. * TraceAbstraction took 151.17 ms. Allocated memory is still 700.4 MB. Free memory was 642.8 MB in the beginning and 634.6 MB in the end (delta: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 50435.37 ms. Allocated memory was 700.4 MB in the beginning and 874.5 MB in the end (delta: 174.1 MB). Free memory was 634.6 MB in the beginning and 778.0 MB in the end (delta: -143.4 MB). Peak memory consumption was 30.7 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: 23]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 4 locations, 0 error locations. SAFE Result, 0.0s OverallTime, 0 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 1 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - ExceptionOrErrorResult: AssertionError: no settings was sufficient de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: AssertionError: no settings was sufficient: de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoop.refineBuchi(BuchiCegarLoop.java:810) RESULT: Ultimate could not prove your program: Toolchain returned no result. !SESSION 2020-06-22 08:12:22.904 ----------------------------------------------- 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 08:13:17.581 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check