YES Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-22 03:11:56,073 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-22 03:11:56,075 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-22 03:11:56,086 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-22 03:11:56,087 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-22 03:11:56,087 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-22 03:11:56,089 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-22 03:11:56,090 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-22 03:11:56,092 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-22 03:11:56,092 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-22 03:11:56,093 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-22 03:11:56,094 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-22 03:11:56,094 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-22 03:11:56,095 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-22 03:11:56,096 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-22 03:11:56,097 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-22 03:11:56,098 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-22 03:11:56,100 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-22 03:11:56,101 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-22 03:11:56,103 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-22 03:11:56,104 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-22 03:11:56,105 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-22 03:11:56,107 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-22 03:11:56,107 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-22 03:11:56,107 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-22 03:11:56,108 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-22 03:11:56,108 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-22 03:11:56,109 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-22 03:11:56,109 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-22 03:11:56,110 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-22 03:11:56,111 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-22 03:11:56,111 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-22 03:11:56,112 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-22 03:11:56,113 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-22 03:11:56,113 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-22 03:11:56,113 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-22 03:11:56,114 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-22 03:11:56,114 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-22 03:11:56,115 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-22 03:11:56,115 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-06-22 03:11:56,130 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-22 03:11:56,130 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-22 03:11:56,131 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-22 03:11:56,131 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-22 03:11:56,131 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-22 03:11:56,131 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-22 03:11:56,132 INFO L133 SettingsManager]: * Use SBE=true [2020-06-22 03:11:56,132 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-22 03:11:56,132 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-22 03:11:56,132 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-22 03:11:56,132 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-22 03:11:56,132 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-22 03:11:56,132 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-22 03:11:56,133 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-22 03:11:56,133 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 03:11:56,133 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-22 03:11:56,133 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-22 03:11:56,133 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-22 03:11:56,133 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-22 03:11:56,134 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-22 03:11:56,134 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-22 03:11:56,134 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-22 03:11:56,134 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-22 03:11:56,134 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-22 03:11:56,134 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 03:11:56,135 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-22 03:11:56,135 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-22 03:11:56,135 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-22 03:11:56,135 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-22 03:11:56,160 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-22 03:11:56,173 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-22 03:11:56,177 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-22 03:11:56,178 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-22 03:11:56,178 INFO L276 PluginConnector]: CDTParser initialized [2020-06-22 03:11:56,179 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-06-22 03:11:56,243 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/519321463090478aa1f4860e034699d2/FLAG493b801a7 [2020-06-22 03:11:56,578 INFO L307 CDTParser]: Found 1 translation units. [2020-06-22 03:11:56,579 INFO L161 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-06-22 03:11:56,585 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/519321463090478aa1f4860e034699d2/FLAG493b801a7 [2020-06-22 03:11:57,009 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/519321463090478aa1f4860e034699d2 [2020-06-22 03:11:57,021 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-22 03:11:57,022 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-22 03:11:57,023 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-22 03:11:57,024 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-22 03:11:57,027 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-22 03:11:57,028 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 03:11:57" (1/1) ... [2020-06-22 03:11:57,031 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@729f92bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 03:11:57, skipping insertion in model container [2020-06-22 03:11:57,032 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 03:11:57" (1/1) ... [2020-06-22 03:11:57,039 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-22 03:11:57,056 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-22 03:11:57,212 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 03:11:57,217 INFO L191 MainTranslator]: Completed pre-run [2020-06-22 03:11:57,284 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 03:11:57,299 INFO L195 MainTranslator]: Completed translation [2020-06-22 03:11:57,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 03:11:57 WrapperNode [2020-06-22 03:11:57,299 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-22 03:11:57,300 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-22 03:11:57,300 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-22 03:11:57,301 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-22 03:11:57,309 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 03:11:57" (1/1) ... [2020-06-22 03:11:57,315 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 03:11:57" (1/1) ... [2020-06-22 03:11:57,333 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-22 03:11:57,334 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-22 03:11:57,334 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-22 03:11:57,334 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-22 03:11:57,343 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 03:11:57" (1/1) ... [2020-06-22 03:11:57,343 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 03:11:57" (1/1) ... [2020-06-22 03:11:57,344 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 03:11:57" (1/1) ... [2020-06-22 03:11:57,344 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 03:11:57" (1/1) ... [2020-06-22 03:11:57,346 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 03:11:57" (1/1) ... [2020-06-22 03:11:57,351 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 03:11:57" (1/1) ... [2020-06-22 03:11:57,351 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 03:11:57" (1/1) ... [2020-06-22 03:11:57,352 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-22 03:11:57,353 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-22 03:11:57,353 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-22 03:11:57,353 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-22 03:11:57,354 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 03:11:57" (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 03:11:57,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-22 03:11:57,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-22 03:11:57,546 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-22 03:11:57,546 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. [2020-06-22 03:11:57,548 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 03:11:57 BoogieIcfgContainer [2020-06-22 03:11:57,548 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-22 03:11:57,548 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-22 03:11:57,548 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-22 03:11:57,550 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-22 03:11:57,551 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 03:11:57" (1/1) ... [2020-06-22 03:11:57,565 INFO L313 BlockEncoder]: Initial Icfg 8 locations, 11 edges [2020-06-22 03:11:57,566 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-22 03:11:57,567 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-22 03:11:57,568 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-22 03:11:57,568 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-22 03:11:57,570 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-22 03:11:57,571 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-22 03:11:57,571 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-22 03:11:57,584 INFO L185 BlockEncoder]: Using Use SBE [2020-06-22 03:11:57,592 INFO L200 BlockEncoder]: SBE split 0 edges [2020-06-22 03:11:57,597 INFO L70 emoveInfeasibleEdges]: Removed 2 edges and 0 locations because of local infeasibility [2020-06-22 03:11:57,598 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 03:11:57,612 INFO L100 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2020-06-22 03:11:57,614 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-06-22 03:11:57,615 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 03:11:57,615 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 03:11:57,616 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-22 03:11:57,616 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 03:11:57,616 INFO L313 BlockEncoder]: Encoded RCFG 4 locations, 5 edges [2020-06-22 03:11:57,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 03:11:57 BasicIcfg [2020-06-22 03:11:57,617 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-22 03:11:57,618 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-22 03:11:57,618 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-22 03:11:57,621 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-22 03:11:57,621 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.06 03:11:57" (1/4) ... [2020-06-22 03:11:57,622 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@499fb74f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 03:11:57, skipping insertion in model container [2020-06-22 03:11:57,622 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 03:11:57" (2/4) ... [2020-06-22 03:11:57,623 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@499fb74f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 03:11:57, skipping insertion in model container [2020-06-22 03:11:57,623 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 03:11:57" (3/4) ... [2020-06-22 03:11:57,623 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@499fb74f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 03:11:57, skipping insertion in model container [2020-06-22 03:11:57,623 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 03:11:57" (4/4) ... [2020-06-22 03:11:57,625 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 03:11:57,635 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-22 03:11:57,642 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-06-22 03:11:57,658 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-06-22 03:11:57,687 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 03:11:57,688 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-22 03:11:57,688 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-22 03:11:57,688 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 03:11:57,689 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 03:11:57,689 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 03:11:57,689 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-22 03:11:57,689 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 03:11:57,689 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-22 03:11:57,703 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states. [2020-06-22 03:11:57,708 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-06-22 03:11:57,711 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-06-22 03:11:57,759 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-06-22 03:11:57,760 INFO L448 ceAbstractionStarter]: For program point L13(lines 13 17) no Hoare annotation was computed. [2020-06-22 03:11:57,760 INFO L448 ceAbstractionStarter]: For program point L13-2(lines 12 22) no Hoare annotation was computed. [2020-06-22 03:11:57,760 INFO L451 ceAbstractionStarter]: At program point L12-2(lines 12 22) the Hoare annotation is: true [2020-06-22 03:11:57,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 03:11:57 BasicIcfg [2020-06-22 03:11:57,768 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-22 03:11:57,769 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-22 03:11:57,769 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-22 03:11:57,773 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-22 03:11:57,773 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 03:11:57,774 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.06 03:11:57" (1/5) ... [2020-06-22 03:11:57,774 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@75c4e503 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 03:11:57, skipping insertion in model container [2020-06-22 03:11:57,774 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 03:11:57,775 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 03:11:57" (2/5) ... [2020-06-22 03:11:57,775 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@75c4e503 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 03:11:57, skipping insertion in model container [2020-06-22 03:11:57,775 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 03:11:57,775 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 03:11:57" (3/5) ... [2020-06-22 03:11:57,776 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@75c4e503 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 03:11:57, skipping insertion in model container [2020-06-22 03:11:57,776 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 03:11:57,776 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 03:11:57" (4/5) ... [2020-06-22 03:11:57,776 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@75c4e503 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 03:11:57, skipping insertion in model container [2020-06-22 03:11:57,777 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 03:11:57,777 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 03:11:57" (5/5) ... [2020-06-22 03:11:57,778 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 03:11:57,807 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 03:11:57,807 INFO L374 BuchiCegarLoop]: Interprodecural is true [2020-06-22 03:11:57,807 INFO L375 BuchiCegarLoop]: Hoare is true [2020-06-22 03:11:57,808 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 03:11:57,808 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 03:11:57,808 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 03:11:57,808 INFO L379 BuchiCegarLoop]: Difference is false [2020-06-22 03:11:57,808 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 03:11:57,808 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-06-22 03:11:57,812 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states. [2020-06-22 03:11:57,830 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 03:11:57,830 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 03:11:57,830 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 03:11:57,837 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 03:11:57,837 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 03:11:57,837 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2020-06-22 03:11:57,837 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states. [2020-06-22 03:11:57,838 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 03:11:57,838 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 03:11:57,838 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 03:11:57,838 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 03:11:57,839 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 03:11:57,844 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [32] ULTIMATE.startENTRY-->L12-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 0) (= v_ULTIMATE.start_main_~x~0_1 0)) InVars {} OutVars{ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_1|, ULTIMATE.start_main_#t~post1=|v_ULTIMATE.start_main_#t~post1_1|, ULTIMATE.start_main_#t~post0=|v_ULTIMATE.start_main_#t~post0_1|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[] AssignedVars[ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_#t~post1, ULTIMATE.start_main_#t~post0, ULTIMATE.start_main_~x~0] 3#L12-2true [2020-06-22 03:11:57,844 INFO L796 eck$LassoCheckResult]: Loop: 3#L12-2true [31] L12-2-->L13: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 6#L13true [36] L13-->L13-2: Formula: (and (<= v_ULTIMATE.start_main_~x~0_6 50) (= (+ v_ULTIMATE.start_main_~y~0_7 1) v_ULTIMATE.start_main_~y~0_6)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_#t~post0=|v_ULTIMATE.start_main_#t~post0_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post0] 5#L13-2true [41] L13-2-->L12-2: Formula: (and (= (+ v_ULTIMATE.start_main_~x~0_5 1) v_ULTIMATE.start_main_~x~0_4) (>= v_ULTIMATE.start_main_~y~0_5 0)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5, ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_4} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_~x~0] 3#L12-2true [2020-06-22 03:11:57,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 03:11:57,850 INFO L82 PathProgramCache]: Analyzing trace with hash 63, now seen corresponding path program 1 times [2020-06-22 03:11:57,852 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 03:11:57,853 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 03:11:57,872 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 03:11:57,872 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 03:11:57,872 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 03:11:57,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 03:11:57,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 03:11:57,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 03:11:57,918 INFO L82 PathProgramCache]: Analyzing trace with hash 60739, now seen corresponding path program 1 times [2020-06-22 03:11:57,918 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 03:11:57,918 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 03:11:57,919 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 03:11:57,919 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 03:11:57,920 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 03:11:57,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 03:11:57,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 03:11:57,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 03:11:57,940 INFO L82 PathProgramCache]: Analyzing trace with hash 1907781, now seen corresponding path program 1 times [2020-06-22 03:11:57,940 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 03:11:57,940 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 03:11:57,941 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 03:11:57,941 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 03:11:57,942 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 03:11:57,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 03:11:57,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 03:11:58,000 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 03:11:58,001 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 03:11:58,001 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 03:11:58,001 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 03:11:58,001 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 03:11:58,002 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 03:11:58,002 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 03:11:58,002 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 03:11:58,002 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 03:11:58,002 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 03:11:58,002 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 03:11:58,021 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 03:11:58,035 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 03:11:58,050 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 03:11:58,054 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 03:11:58,127 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 03:11:58,127 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 03:11:58,135 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 03:11:58,135 INFO L163 nArgumentSynthesizer]: Using integer mode. 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 03:11:58,171 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 03:11:58,171 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 03:11:58,202 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 03:11:58,205 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 03:11:58,205 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 03:11:58,205 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 03:11:58,205 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 03:11:58,205 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 03:11:58,205 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 03:11:58,205 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 03:11:58,206 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 03:11:58,206 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 03:11:58,206 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 03:11:58,206 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 03:11:58,208 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 03:11:58,216 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 03:11:58,218 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 03:11:58,221 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 03:11:58,286 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 03:11:58,291 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 03:11:58,293 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 03:11:58,294 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 03:11:58,295 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 03:11:58,295 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 03:11:58,295 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 03:11:58,296 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 03:11:58,298 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 03:11:58,298 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 03:11:58,305 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 03:11:58,312 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 03:11:58,312 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2020-06-22 03:11:58,314 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 03:11:58,314 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 03:11:58,315 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 03:11:58,315 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~x~0 + 101 Supporting invariants [] [2020-06-22 03:11:58,317 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 03:11:58,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 03:11:58,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 03:11:58,375 INFO L256 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 03:11:58,376 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 03:11:58,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 03:11:58,386 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 03:11:58,387 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 03:11:58,401 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 03:11:58,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 03:11:58,430 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 03:11:58,431 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 03:11:58,460 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-06-22 03:11:58,465 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-06-22 03:11:58,467 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 4 states. Second operand 4 states. [2020-06-22 03:11:58,564 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 4 states.. Second operand 4 states. Result 21 states and 27 transitions. Complement of second has 10 states. [2020-06-22 03:11:58,565 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 3 non-accepting loop states 2 accepting loop states [2020-06-22 03:11:58,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-06-22 03:11:58,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 23 transitions. [2020-06-22 03:11:58,570 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 23 transitions. Stem has 1 letters. Loop has 3 letters. [2020-06-22 03:11:58,571 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 03:11:58,571 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 23 transitions. Stem has 4 letters. Loop has 3 letters. [2020-06-22 03:11:58,572 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 03:11:58,572 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 23 transitions. Stem has 1 letters. Loop has 6 letters. [2020-06-22 03:11:58,572 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 03:11:58,579 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 27 transitions. [2020-06-22 03:11:58,580 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 03:11:58,585 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 16 states and 19 transitions. [2020-06-22 03:11:58,586 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2020-06-22 03:11:58,586 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2020-06-22 03:11:58,587 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 19 transitions. [2020-06-22 03:11:58,587 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 03:11:58,587 INFO L706 BuchiCegarLoop]: Abstraction has 16 states and 19 transitions. [2020-06-22 03:11:58,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 19 transitions. [2020-06-22 03:11:58,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 11. [2020-06-22 03:11:58,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-06-22 03:11:58,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2020-06-22 03:11:58,616 INFO L729 BuchiCegarLoop]: Abstraction has 11 states and 13 transitions. [2020-06-22 03:11:58,616 INFO L609 BuchiCegarLoop]: Abstraction has 11 states and 13 transitions. [2020-06-22 03:11:58,616 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2020-06-22 03:11:58,617 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 13 transitions. [2020-06-22 03:11:58,617 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 03:11:58,617 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 03:11:58,617 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 03:11:58,618 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1] [2020-06-22 03:11:58,618 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 03:11:58,619 INFO L794 eck$LassoCheckResult]: Stem: 84#ULTIMATE.startENTRY [32] ULTIMATE.startENTRY-->L12-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 0) (= v_ULTIMATE.start_main_~x~0_1 0)) InVars {} OutVars{ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_1|, ULTIMATE.start_main_#t~post1=|v_ULTIMATE.start_main_#t~post1_1|, ULTIMATE.start_main_#t~post0=|v_ULTIMATE.start_main_#t~post0_1|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[] AssignedVars[ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_#t~post1, ULTIMATE.start_main_#t~post0, ULTIMATE.start_main_~x~0] 80#L12-2 [31] L12-2-->L13: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 81#L13 [36] L13-->L13-2: Formula: (and (<= v_ULTIMATE.start_main_~x~0_6 50) (= (+ v_ULTIMATE.start_main_~y~0_7 1) v_ULTIMATE.start_main_~y~0_6)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_#t~post0=|v_ULTIMATE.start_main_#t~post0_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post0] 89#L13-2 [41] L13-2-->L12-2: Formula: (and (= (+ v_ULTIMATE.start_main_~x~0_5 1) v_ULTIMATE.start_main_~x~0_4) (>= v_ULTIMATE.start_main_~y~0_5 0)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5, ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_4} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_~x~0] 90#L12-2 [31] L12-2-->L13: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 88#L13 [2020-06-22 03:11:58,619 INFO L796 eck$LassoCheckResult]: Loop: 88#L13 [40] L13-->L13-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_9 (+ v_ULTIMATE.start_main_~y~0_8 1)) (> v_ULTIMATE.start_main_~x~0_7 50)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_#t~post1=|v_ULTIMATE.start_main_#t~post1_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post1] 85#L13-2 [41] L13-2-->L12-2: Formula: (and (= (+ v_ULTIMATE.start_main_~x~0_5 1) v_ULTIMATE.start_main_~x~0_4) (>= v_ULTIMATE.start_main_~y~0_5 0)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5, ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_4} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_~x~0] 86#L12-2 [31] L12-2-->L13: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 88#L13 [2020-06-22 03:11:58,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 03:11:58,619 INFO L82 PathProgramCache]: Analyzing trace with hash 59141242, now seen corresponding path program 2 times [2020-06-22 03:11:58,619 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 03:11:58,620 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 03:11:58,621 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 03:11:58,621 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 03:11:58,621 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 03:11:58,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 03:11:58,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 03:11:58,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 03:11:58,629 INFO L82 PathProgramCache]: Analyzing trace with hash 69533, now seen corresponding path program 1 times [2020-06-22 03:11:58,629 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 03:11:58,629 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 03:11:58,630 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 03:11:58,630 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 03:11:58,630 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 03:11:58,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 03:11:58,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 03:11:58,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 03:11:58,636 INFO L82 PathProgramCache]: Analyzing trace with hash 940188804, now seen corresponding path program 1 times [2020-06-22 03:11:58,636 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 03:11:58,636 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 03:11:58,637 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 03:11:58,637 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 03:11:58,638 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 03:11:58,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 03:11:58,681 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 03:11:58,683 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2020-06-22 03:11:58,683 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2020-06-22 03:11:58,695 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 03:11:58,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 03:11:58,703 INFO L256 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 3 conjunts are in the unsatisfiable core [2020-06-22 03:11:58,704 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 03:11:58,709 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 03:11:58,737 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-06-22 03:11:58,738 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2020-06-22 03:11:58,760 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 03:11:58,760 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 03:11:58,760 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 03:11:58,760 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 03:11:58,760 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 03:11:58,761 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 03:11:58,761 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 03:11:58,761 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 03:11:58,761 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 03:11:58,761 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 03:11:58,761 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 03:11:58,762 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 03:11:58,766 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 03:11:58,774 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 03:11:58,777 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 03:11:58,827 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 03:11:58,827 INFO L412 LassoAnalysis]: Checking for nontermination... 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 03:11:58,832 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 03:11:58,832 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 03:11:58,839 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 03:11:58,839 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post2=0} Honda state: {ULTIMATE.start_main_#t~post2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 03:11:58,868 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 03:11:58,869 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 03:11:58,899 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 03:11:58,899 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 03:11:58,914 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 03:11:58,914 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=51} Honda state: {ULTIMATE.start_main_~x~0=51} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0=0}, {ULTIMATE.start_main_~x~0=1}, {ULTIMATE.start_main_~x~0=0}] Lambdas: [0, 1, 0] Nus: [0, 0] 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 03:11:58,943 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 03:11:58,943 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 03:11:58,947 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 03:11:58,947 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post1=0} Honda state: {ULTIMATE.start_main_#t~post1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 03:11:58,974 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 03:11:58,974 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 03:11:59,005 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 03:11:59,005 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 03:11:59,063 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 03:11:59,065 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 03:11:59,065 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 03:11:59,065 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 03:11:59,065 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 03:11:59,065 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 03:11:59,066 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 03:11:59,066 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 03:11:59,066 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 03:11:59,066 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 03:11:59,066 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 03:11:59,066 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 03:11:59,068 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 03:11:59,071 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 03:11:59,076 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 03:11:59,078 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 03:11:59,127 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 03:11:59,127 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 03:11:59,128 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 03:11:59,128 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 03:11:59,128 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 03:11:59,129 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 03:11:59,129 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 03:11:59,129 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 03:11:59,129 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 03:11:59,130 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 03:11:59,131 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 03:11:59,132 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 03:11:59,132 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 03:11:59,132 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 03:11:59,132 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 03:11:59,133 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 03:11:59,133 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 03:11:59,133 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 03:11:59,133 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 03:11:59,139 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 03:11:59,139 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 03:11:59,140 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 03:11:59,140 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 03:11:59,141 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 03:11:59,141 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 03:11:59,141 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 03:11:59,141 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 03:11:59,141 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 03:11:59,143 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 03:11:59,143 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 03:11:59,144 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 03:11:59,144 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 03:11:59,144 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 03:11:59,144 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 03:11:59,144 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 03:11:59,145 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 03:11:59,145 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 03:11:59,149 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 03:11:59,152 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 03:11:59,152 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 03:11:59,153 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 03:11:59,153 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 03:11:59,154 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 03:11:59,154 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2020-06-22 03:11:59,154 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 03:11:59,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 03:11:59,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 03:11:59,189 INFO L256 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 03:11:59,190 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 03:11:59,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 03:11:59,199 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 03:11:59,199 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 03:11:59,220 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 03:11:59,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 03:11:59,236 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 03:11:59,236 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 03:11:59,238 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-06-22 03:11:59,238 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-06-22 03:11:59,238 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 11 states and 13 transitions. cyclomatic complexity: 4 Second operand 4 states. [2020-06-22 03:11:59,329 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 11 states and 13 transitions. cyclomatic complexity: 4. Second operand 4 states. Result 35 states and 44 transitions. Complement of second has 16 states. [2020-06-22 03:11:59,330 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 2 accepting loop states [2020-06-22 03:11:59,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-06-22 03:11:59,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 16 transitions. [2020-06-22 03:11:59,331 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 16 transitions. Stem has 5 letters. Loop has 3 letters. [2020-06-22 03:11:59,332 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 03:11:59,332 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 16 transitions. Stem has 8 letters. Loop has 3 letters. [2020-06-22 03:11:59,332 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 03:11:59,332 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 16 transitions. Stem has 5 letters. Loop has 6 letters. [2020-06-22 03:11:59,333 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 03:11:59,334 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 44 transitions. [2020-06-22 03:11:59,336 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 03:11:59,336 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 0 states and 0 transitions. [2020-06-22 03:11:59,336 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-06-22 03:11:59,336 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-06-22 03:11:59,336 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-06-22 03:11:59,337 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 03:11:59,337 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 03:11:59,337 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 03:11:59,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-06-22 03:11:59,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-06-22 03:11:59,340 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 4 states. [2020-06-22 03:11:59,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 03:11:59,344 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-06-22 03:11:59,344 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-06-22 03:11:59,345 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2020-06-22 03:11:59,345 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 03:11:59,345 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2020-06-22 03:11:59,346 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-06-22 03:11:59,346 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-06-22 03:11:59,346 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-06-22 03:11:59,346 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 03:11:59,346 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 03:11:59,346 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 03:11:59,346 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 03:11:59,346 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2020-06-22 03:11:59,346 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-06-22 03:11:59,347 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 03:11:59,347 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-06-22 03:11:59,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 03:11:59 BasicIcfg [2020-06-22 03:11:59,353 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-22 03:11:59,353 INFO L168 Benchmark]: Toolchain (without parser) took 2331.98 ms. Allocated memory was 649.6 MB in the beginning and 693.6 MB in the end (delta: 44.0 MB). Free memory was 564.1 MB in the beginning and 465.1 MB in the end (delta: 99.0 MB). Peak memory consumption was 143.1 MB. Max. memory is 50.3 GB. [2020-06-22 03:11:59,355 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 649.6 MB. Free memory is still 585.7 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 03:11:59,355 INFO L168 Benchmark]: CACSL2BoogieTranslator took 276.40 ms. Allocated memory was 649.6 MB in the beginning and 693.6 MB in the end (delta: 44.0 MB). Free memory was 564.1 MB in the beginning and 660.3 MB in the end (delta: -96.2 MB). Peak memory consumption was 28.4 MB. Max. memory is 50.3 GB. [2020-06-22 03:11:59,356 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.12 ms. Allocated memory is still 693.6 MB. Free memory was 660.3 MB in the beginning and 657.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 50.3 GB. [2020-06-22 03:11:59,357 INFO L168 Benchmark]: Boogie Preprocessor took 18.90 ms. Allocated memory is still 693.6 MB. Free memory was 657.2 MB in the beginning and 655.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 50.3 GB. [2020-06-22 03:11:59,357 INFO L168 Benchmark]: RCFGBuilder took 195.15 ms. Allocated memory is still 693.6 MB. Free memory was 655.9 MB in the beginning and 641.6 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 50.3 GB. [2020-06-22 03:11:59,358 INFO L168 Benchmark]: BlockEncodingV2 took 68.66 ms. Allocated memory is still 693.6 MB. Free memory was 641.6 MB in the beginning and 637.5 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 50.3 GB. [2020-06-22 03:11:59,358 INFO L168 Benchmark]: TraceAbstraction took 150.67 ms. Allocated memory is still 693.6 MB. Free memory was 637.5 MB in the beginning and 628.1 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 50.3 GB. [2020-06-22 03:11:59,359 INFO L168 Benchmark]: BuchiAutomizer took 1583.70 ms. Allocated memory is still 693.6 MB. Free memory was 628.1 MB in the beginning and 465.1 MB in the end (delta: 163.0 MB). Peak memory consumption was 163.0 MB. Max. memory is 50.3 GB. [2020-06-22 03:11:59,364 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 8 locations, 11 edges - StatisticsResult: Encoded RCFG 4 locations, 5 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 649.6 MB. Free memory is still 585.7 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 276.40 ms. Allocated memory was 649.6 MB in the beginning and 693.6 MB in the end (delta: 44.0 MB). Free memory was 564.1 MB in the beginning and 660.3 MB in the end (delta: -96.2 MB). Peak memory consumption was 28.4 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 33.12 ms. Allocated memory is still 693.6 MB. Free memory was 660.3 MB in the beginning and 657.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 18.90 ms. Allocated memory is still 693.6 MB. Free memory was 657.2 MB in the beginning and 655.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 50.3 GB. * RCFGBuilder took 195.15 ms. Allocated memory is still 693.6 MB. Free memory was 655.9 MB in the beginning and 641.6 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 68.66 ms. Allocated memory is still 693.6 MB. Free memory was 641.6 MB in the beginning and 637.5 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 50.3 GB. * TraceAbstraction took 150.67 ms. Allocated memory is still 693.6 MB. Free memory was 637.5 MB in the beginning and 628.1 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 1583.70 ms. Allocated memory is still 693.6 MB. Free memory was 628.1 MB in the beginning and 465.1 MB in the end (delta: 163.0 MB). Peak memory consumption was 163.0 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - InvariantResult [Line: 12]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 4 locations, 0 error locations. SAFE Result, 0.0s OverallTime, 0 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 1 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 0 deterministic, 2 nondeterministic). One nondeterministic module has affine ranking function -2 * x + 101 and consists of 7 locations. One nondeterministic module has affine ranking function y and consists of 6 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.5s and 3 iterations. TraceHistogramMax:2. Analysis of lassos took 1.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 11 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 9 SDtfs, 24 SDslu, 9 SDs, 0 SdLazy, 45 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax100 hnf100 lsp55 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie105 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 22ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-06-22 03:11:53.769 ----------------------------------------------- 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 03:11:59.599 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check