YES Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-22 04:06:23,210 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-22 04:06:23,212 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-22 04:06:23,223 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-22 04:06:23,223 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-22 04:06:23,224 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-22 04:06:23,225 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-22 04:06:23,227 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-22 04:06:23,228 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-22 04:06:23,229 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-22 04:06:23,230 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-22 04:06:23,230 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-22 04:06:23,231 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-22 04:06:23,232 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-22 04:06:23,233 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-22 04:06:23,234 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-22 04:06:23,234 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-22 04:06:23,236 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-22 04:06:23,238 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-22 04:06:23,240 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-22 04:06:23,241 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-22 04:06:23,242 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-22 04:06:23,244 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-22 04:06:23,244 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-22 04:06:23,244 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-22 04:06:23,245 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-22 04:06:23,245 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-22 04:06:23,246 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-22 04:06:23,247 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-22 04:06:23,247 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-22 04:06:23,248 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-22 04:06:23,249 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-22 04:06:23,250 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-22 04:06:23,250 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-22 04:06:23,250 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-22 04:06:23,250 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-22 04:06:23,251 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-22 04:06:23,252 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-22 04:06:23,252 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-22 04:06:23,252 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-06-22 04:06:23,267 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-22 04:06:23,267 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-22 04:06:23,268 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-22 04:06:23,268 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-22 04:06:23,268 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-22 04:06:23,268 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-22 04:06:23,269 INFO L133 SettingsManager]: * Use SBE=true [2020-06-22 04:06:23,269 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-22 04:06:23,269 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-22 04:06:23,269 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-22 04:06:23,269 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-22 04:06:23,269 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-22 04:06:23,270 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-22 04:06:23,270 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-22 04:06:23,270 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 04:06:23,270 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-22 04:06:23,270 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-22 04:06:23,270 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-22 04:06:23,271 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-22 04:06:23,271 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-22 04:06:23,271 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-22 04:06:23,271 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-22 04:06:23,271 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-22 04:06:23,271 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-22 04:06:23,272 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 04:06:23,272 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-22 04:06:23,272 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-22 04:06:23,272 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-22 04:06:23,272 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-22 04:06:23,297 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-22 04:06:23,310 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-22 04:06:23,313 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-22 04:06:23,315 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-22 04:06:23,315 INFO L276 PluginConnector]: CDTParser initialized [2020-06-22 04:06:23,317 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-06-22 04:06:23,386 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/83f1dd3706e54e48a7c1bdabb496167c/FLAGab5800fd2 [2020-06-22 04:06:23,728 INFO L307 CDTParser]: Found 1 translation units. [2020-06-22 04:06:23,729 INFO L161 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-06-22 04:06:23,736 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/83f1dd3706e54e48a7c1bdabb496167c/FLAGab5800fd2 [2020-06-22 04:06:24,161 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/83f1dd3706e54e48a7c1bdabb496167c [2020-06-22 04:06:24,173 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-22 04:06:24,174 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-22 04:06:24,175 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-22 04:06:24,176 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-22 04:06:24,179 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-22 04:06:24,180 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 04:06:24" (1/1) ... [2020-06-22 04:06:24,183 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a8b4ff1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:06:24, skipping insertion in model container [2020-06-22 04:06:24,183 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 04:06:24" (1/1) ... [2020-06-22 04:06:24,191 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-22 04:06:24,207 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-22 04:06:24,360 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 04:06:24,365 INFO L191 MainTranslator]: Completed pre-run [2020-06-22 04:06:24,434 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 04:06:24,448 INFO L195 MainTranslator]: Completed translation [2020-06-22 04:06:24,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:06:24 WrapperNode [2020-06-22 04:06:24,449 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-22 04:06:24,450 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-22 04:06:24,450 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-22 04:06:24,450 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-22 04:06:24,459 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:06:24" (1/1) ... [2020-06-22 04:06:24,464 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:06:24" (1/1) ... [2020-06-22 04:06:24,482 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-22 04:06:24,483 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-22 04:06:24,483 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-22 04:06:24,483 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-22 04:06:24,492 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:06:24" (1/1) ... [2020-06-22 04:06:24,493 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:06:24" (1/1) ... [2020-06-22 04:06:24,493 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:06:24" (1/1) ... [2020-06-22 04:06:24,493 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:06:24" (1/1) ... [2020-06-22 04:06:24,495 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:06:24" (1/1) ... [2020-06-22 04:06:24,499 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:06:24" (1/1) ... [2020-06-22 04:06:24,500 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:06:24" (1/1) ... [2020-06-22 04:06:24,501 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-22 04:06:24,502 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-22 04:06:24,502 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-22 04:06:24,502 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-22 04:06:24,503 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:06:24" (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 04:06:24,569 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-22 04:06:24,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-22 04:06:24,690 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-22 04:06:24,690 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. [2020-06-22 04:06:24,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 04:06:24 BoogieIcfgContainer [2020-06-22 04:06:24,691 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-22 04:06:24,692 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-22 04:06:24,692 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-22 04:06:24,694 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-22 04:06:24,695 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 04:06:24" (1/1) ... [2020-06-22 04:06:24,709 INFO L313 BlockEncoder]: Initial Icfg 7 locations, 9 edges [2020-06-22 04:06:24,710 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-22 04:06:24,711 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-22 04:06:24,712 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-22 04:06:24,712 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-22 04:06:24,714 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-22 04:06:24,715 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-22 04:06:24,715 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-22 04:06:24,729 INFO L185 BlockEncoder]: Using Use SBE [2020-06-22 04:06:24,745 INFO L200 BlockEncoder]: SBE split 2 edges [2020-06-22 04:06:24,749 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-06-22 04:06:24,750 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 04:06:24,760 INFO L100 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2020-06-22 04:06:24,762 INFO L70 RemoveSinkStates]: Removed 3 edges and 2 locations by removing sink states [2020-06-22 04:06:24,763 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 04:06:24,764 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 04:06:24,764 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-22 04:06:24,764 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 04:06:24,764 INFO L313 BlockEncoder]: Encoded RCFG 3 locations, 5 edges [2020-06-22 04:06:24,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 04:06:24 BasicIcfg [2020-06-22 04:06:24,765 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-22 04:06:24,766 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-22 04:06:24,766 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-22 04:06:24,769 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-22 04:06:24,769 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.06 04:06:24" (1/4) ... [2020-06-22 04:06:24,770 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@358146b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 04:06:24, skipping insertion in model container [2020-06-22 04:06:24,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:06:24" (2/4) ... [2020-06-22 04:06:24,771 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@358146b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 04:06:24, skipping insertion in model container [2020-06-22 04:06:24,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 04:06:24" (3/4) ... [2020-06-22 04:06:24,771 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@358146b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 04:06:24, skipping insertion in model container [2020-06-22 04:06:24,772 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 04:06:24" (4/4) ... [2020-06-22 04:06:24,773 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 04:06:24,783 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-22 04:06:24,791 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-06-22 04:06:24,807 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-06-22 04:06:24,835 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 04:06:24,836 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-22 04:06:24,836 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-22 04:06:24,836 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 04:06:24,836 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 04:06:24,837 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 04:06:24,837 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-22 04:06:24,837 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 04:06:24,837 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-22 04:06:24,850 INFO L276 IsEmpty]: Start isEmpty. Operand 3 states. [2020-06-22 04:06:24,856 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-06-22 04:06:24,859 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. [2020-06-22 04:06:24,907 INFO L448 ceAbstractionStarter]: For program point L15(lines 15 20) no Hoare annotation was computed. [2020-06-22 04:06:24,907 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-06-22 04:06:24,908 INFO L451 ceAbstractionStarter]: At program point L15-2(lines 14 21) the Hoare annotation is: true [2020-06-22 04:06:24,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 04:06:24 BasicIcfg [2020-06-22 04:06:24,916 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-22 04:06:24,917 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-22 04:06:24,917 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-22 04:06:24,920 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-22 04:06:24,921 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 04:06:24,921 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.06 04:06:24" (1/5) ... [2020-06-22 04:06:24,922 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6a90a501 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 04:06:24, skipping insertion in model container [2020-06-22 04:06:24,922 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 04:06:24,922 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:06:24" (2/5) ... [2020-06-22 04:06:24,922 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6a90a501 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 04:06:24, skipping insertion in model container [2020-06-22 04:06:24,922 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 04:06:24,923 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 04:06:24" (3/5) ... [2020-06-22 04:06:24,923 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6a90a501 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 04:06:24, skipping insertion in model container [2020-06-22 04:06:24,923 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 04:06:24,923 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 04:06:24" (4/5) ... [2020-06-22 04:06:24,924 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6a90a501 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 04:06:24, skipping insertion in model container [2020-06-22 04:06:24,924 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 04:06:24,924 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 04:06:24" (5/5) ... [2020-06-22 04:06:24,925 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 04:06:24,951 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 04:06:24,952 INFO L374 BuchiCegarLoop]: Interprodecural is true [2020-06-22 04:06:24,952 INFO L375 BuchiCegarLoop]: Hoare is true [2020-06-22 04:06:24,952 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 04:06:24,952 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 04:06:24,952 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 04:06:24,953 INFO L379 BuchiCegarLoop]: Difference is false [2020-06-22 04:06:24,953 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 04:06:24,953 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-06-22 04:06:24,956 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-06-22 04:06:24,973 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 04:06:24,973 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 04:06:24,973 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 04:06:24,980 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 04:06:24,980 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 04:06:24,980 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2020-06-22 04:06:24,980 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-06-22 04:06:24,981 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 04:06:24,981 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 04:06:24,981 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 04:06:24,981 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 04:06:24,981 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 04:06:24,986 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [26] ULTIMATE.startENTRY-->L15-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 5#L15-2true [2020-06-22 04:06:24,987 INFO L796 eck$LassoCheckResult]: Loop: 5#L15-2true [31] L15-2-->L15: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_5) (< 0 v_ULTIMATE.start_main_~x~0_5)) 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_~x~0=v_ULTIMATE.start_main_~x~0_5} AuxVars[] AssignedVars[] 3#L15true [37] L15-->L15-2: Formula: (and (> 0 |v_ULTIMATE.start_main_#t~nondet2_3|) (= v_ULTIMATE.start_main_~x~0_6 (+ v_ULTIMATE.start_main_~x~0_7 (- 1))) (= v_ULTIMATE.start_main_~y~0_6 |v_ULTIMATE.start_main_#t~nondet3_3|)) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_3|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_2|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 5#L15-2true [2020-06-22 04:06:24,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 04:06:24,993 INFO L82 PathProgramCache]: Analyzing trace with hash 57, now seen corresponding path program 1 times [2020-06-22 04:06:24,995 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 04:06:24,995 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 04:06:25,015 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:06:25,015 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 04:06:25,015 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:06:25,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:06:25,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:06:25,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 04:06:25,055 INFO L82 PathProgramCache]: Analyzing trace with hash 1959, now seen corresponding path program 1 times [2020-06-22 04:06:25,055 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 04:06:25,055 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 04:06:25,056 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:06:25,057 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 04:06:25,057 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:06:25,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:06:25,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:06:25,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 04:06:25,075 INFO L82 PathProgramCache]: Analyzing trace with hash 55775, now seen corresponding path program 1 times [2020-06-22 04:06:25,076 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 04:06:25,076 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 04:06:25,077 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:06:25,077 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 04:06:25,077 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:06:25,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:06:25,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:06:25,141 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 04:06:25,142 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 04:06:25,142 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 04:06:25,142 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 04:06:25,143 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 04:06:25,143 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 04:06:25,143 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 04:06:25,143 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 04:06:25,143 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 04:06:25,143 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 04:06:25,144 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 04:06:25,162 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 04:06:25,177 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 04:06:25,182 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 04:06:25,267 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 04:06:25,269 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 04:06:25,276 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 04:06:25,277 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 04:06:25,310 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 04:06:25,310 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 04:06:25,341 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 04:06:25,344 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 04:06:25,344 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 04:06:25,344 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 04:06:25,344 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 04:06:25,344 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 04:06:25,344 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 04:06:25,345 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 04:06:25,345 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 04:06:25,345 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 04:06:25,345 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 04:06:25,345 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 04:06:25,347 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 04:06:25,361 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:06:25,365 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 04:06:25,421 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 04:06:25,427 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 04:06:25,429 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 04:06:25,430 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 04:06:25,430 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 04:06:25,432 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 04:06:25,432 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 04:06:25,432 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 04:06:25,435 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 04:06:25,435 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 04:06:25,443 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 04:06:25,449 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 04:06:25,449 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 04:06:25,451 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 04:06:25,452 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 04:06:25,452 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 04:06:25,453 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2020-06-22 04:06:25,454 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 04:06:25,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 04:06:25,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 04:06:25,488 INFO L256 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 04:06:25,490 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 04:06:25,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 04:06:25,502 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 04:06:25,502 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 04:06:25,525 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 04:06:25,550 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-06-22 04:06:25,555 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-06-22 04:06:25,556 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 3 states. Second operand 3 states. [2020-06-22 04:06:25,590 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 3 states.. Second operand 3 states. Result 8 states and 12 transitions. Complement of second has 4 states. [2020-06-22 04:06:25,590 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-06-22 04:06:25,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-06-22 04:06:25,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2020-06-22 04:06:25,594 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 1 letters. Loop has 2 letters. [2020-06-22 04:06:25,596 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 04:06:25,596 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 3 letters. Loop has 2 letters. [2020-06-22 04:06:25,596 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 04:06:25,596 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 1 letters. Loop has 4 letters. [2020-06-22 04:06:25,597 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 04:06:25,602 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 12 transitions. [2020-06-22 04:06:25,603 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 04:06:25,607 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 8 states and 12 transitions. [2020-06-22 04:06:25,608 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2020-06-22 04:06:25,608 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2020-06-22 04:06:25,609 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 12 transitions. [2020-06-22 04:06:25,609 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 04:06:25,609 INFO L706 BuchiCegarLoop]: Abstraction has 8 states and 12 transitions. [2020-06-22 04:06:25,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 12 transitions. [2020-06-22 04:06:25,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2020-06-22 04:06:25,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-06-22 04:06:25,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 11 transitions. [2020-06-22 04:06:25,637 INFO L729 BuchiCegarLoop]: Abstraction has 7 states and 11 transitions. [2020-06-22 04:06:25,637 INFO L609 BuchiCegarLoop]: Abstraction has 7 states and 11 transitions. [2020-06-22 04:06:25,637 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2020-06-22 04:06:25,637 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 11 transitions. [2020-06-22 04:06:25,638 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 04:06:25,638 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 04:06:25,638 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 04:06:25,638 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 04:06:25,638 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 04:06:25,639 INFO L794 eck$LassoCheckResult]: Stem: 49#ULTIMATE.startENTRY [26] ULTIMATE.startENTRY-->L15-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 50#L15-2 [31] L15-2-->L15: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_5) (< 0 v_ULTIMATE.start_main_~x~0_5)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} AuxVars[] AssignedVars[] 44#L15 [2020-06-22 04:06:25,639 INFO L796 eck$LassoCheckResult]: Loop: 44#L15 [25] L15-->L15-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_7 (+ v_ULTIMATE.start_main_~y~0_8 (- 1))) (= 0 |v_ULTIMATE.start_main_#t~nondet2_5|)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~y~0] 45#L15-2 [31] L15-2-->L15: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_5) (< 0 v_ULTIMATE.start_main_~x~0_5)) 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_~x~0=v_ULTIMATE.start_main_~x~0_5} AuxVars[] AssignedVars[] 44#L15 [2020-06-22 04:06:25,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 04:06:25,639 INFO L82 PathProgramCache]: Analyzing trace with hash 1798, now seen corresponding path program 1 times [2020-06-22 04:06:25,640 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 04:06:25,640 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 04:06:25,641 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:06:25,641 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 04:06:25,641 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:06:25,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:06:25,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:06:25,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 04:06:25,647 INFO L82 PathProgramCache]: Analyzing trace with hash 1767, now seen corresponding path program 1 times [2020-06-22 04:06:25,647 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 04:06:25,648 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 04:06:25,648 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:06:25,648 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 04:06:25,649 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:06:25,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:06:25,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:06:25,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 04:06:25,654 INFO L82 PathProgramCache]: Analyzing trace with hash 1728684, now seen corresponding path program 1 times [2020-06-22 04:06:25,654 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 04:06:25,654 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 04:06:25,655 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:06:25,655 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 04:06:25,655 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:06:25,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:06:25,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:06:25,683 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 04:06:25,683 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 04:06:25,683 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 04:06:25,683 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 04:06:25,683 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 04:06:25,684 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 04:06:25,684 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 04:06:25,684 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 04:06:25,684 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 04:06:25,684 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 04:06:25,684 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 04:06:25,686 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 04:06:25,691 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 04:06:25,699 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 04:06:25,740 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 04:06:25,740 INFO L412 LassoAnalysis]: Checking for nontermination... 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 04:06:25,746 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 04:06:25,746 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 04:06:25,776 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 04:06:25,776 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=1} Honda state: {ULTIMATE.start_main_~x~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 04:06:25,785 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 04:06:25,785 INFO L163 nArgumentSynthesizer]: Using integer mode. 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 04:06:25,818 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 04:06:25,819 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 04:06:25,891 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 04:06:25,893 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 04:06:25,894 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 04:06:25,894 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 04:06:25,894 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 04:06:25,894 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 04:06:25,894 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 04:06:25,894 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 04:06:25,894 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 04:06:25,894 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 04:06:25,895 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 04:06:25,895 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 04:06:25,896 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 04:06:25,900 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 04:06:25,906 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 04:06:25,941 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 04:06:25,941 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 04:06:25,942 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 04:06:25,943 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 04:06:25,943 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 04:06:25,943 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 04:06:25,943 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 04:06:25,944 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 04:06:25,944 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 04:06:25,944 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 04:06:25,947 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 04:06:25,947 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 04:06:25,948 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 04:06:25,948 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 04:06:25,948 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 04:06:25,948 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 04:06:25,949 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 04:06:25,949 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 04:06:25,949 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 04:06:25,955 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 04:06:25,958 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 04:06:25,958 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 04:06:25,958 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 04:06:25,958 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 04:06:25,959 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 04:06:25,959 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 04:06:25,959 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 04:06:25,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 04:06:25,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 04:06:25,976 INFO L256 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 04:06:25,977 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 04:06:25,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 04:06:25,982 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 04:06:25,983 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 04:06:26,000 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 04:06:26,000 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-06-22 04:06:26,001 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-06-22 04:06:26,001 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 7 states and 11 transitions. cyclomatic complexity: 6 Second operand 3 states. [2020-06-22 04:06:26,026 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 7 states and 11 transitions. cyclomatic complexity: 6. Second operand 3 states. Result 10 states and 15 transitions. Complement of second has 4 states. [2020-06-22 04:06:26,026 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-06-22 04:06:26,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-06-22 04:06:26,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2020-06-22 04:06:26,028 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 2 letters. Loop has 2 letters. [2020-06-22 04:06:26,028 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 04:06:26,028 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 4 letters. Loop has 2 letters. [2020-06-22 04:06:26,029 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 04:06:26,029 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 2 letters. Loop has 4 letters. [2020-06-22 04:06:26,029 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 04:06:26,030 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 15 transitions. [2020-06-22 04:06:26,031 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 04:06:26,031 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 0 states and 0 transitions. [2020-06-22 04:06:26,032 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-06-22 04:06:26,032 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-06-22 04:06:26,032 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-06-22 04:06:26,032 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 04:06:26,032 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 04:06:26,032 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 04:06:26,032 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 04:06:26,032 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2020-06-22 04:06:26,032 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-06-22 04:06:26,033 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 04:06:26,033 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-06-22 04:06:26,039 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 04:06:26 BasicIcfg [2020-06-22 04:06:26,039 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-22 04:06:26,039 INFO L168 Benchmark]: Toolchain (without parser) took 1866.08 ms. Allocated memory was 649.6 MB in the beginning and 685.8 MB in the end (delta: 36.2 MB). Free memory was 564.1 MB in the beginning and 511.2 MB in the end (delta: 52.9 MB). Peak memory consumption was 89.1 MB. Max. memory is 50.3 GB. [2020-06-22 04:06:26,041 INFO L168 Benchmark]: CDTParser took 0.17 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 04:06:26,042 INFO L168 Benchmark]: CACSL2BoogieTranslator took 273.90 ms. Allocated memory was 649.6 MB in the beginning and 685.8 MB in the end (delta: 36.2 MB). Free memory was 564.1 MB in the beginning and 653.6 MB in the end (delta: -89.4 MB). Peak memory consumption was 28.3 MB. Max. memory is 50.3 GB. [2020-06-22 04:06:26,043 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.94 ms. Allocated memory is still 685.8 MB. Free memory was 653.6 MB in the beginning and 649.1 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 50.3 GB. [2020-06-22 04:06:26,043 INFO L168 Benchmark]: Boogie Preprocessor took 18.45 ms. Allocated memory is still 685.8 MB. Free memory was 649.1 MB in the beginning and 647.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-06-22 04:06:26,044 INFO L168 Benchmark]: RCFGBuilder took 189.83 ms. Allocated memory is still 685.8 MB. Free memory was 647.8 MB in the beginning and 636.0 MB in the end (delta: 11.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 50.3 GB. [2020-06-22 04:06:26,045 INFO L168 Benchmark]: BlockEncodingV2 took 73.23 ms. Allocated memory is still 685.8 MB. Free memory was 636.0 MB in the beginning and 629.6 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 50.3 GB. [2020-06-22 04:06:26,046 INFO L168 Benchmark]: TraceAbstraction took 150.01 ms. Allocated memory is still 685.8 MB. Free memory was 629.6 MB in the beginning and 620.0 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 50.3 GB. [2020-06-22 04:06:26,046 INFO L168 Benchmark]: BuchiAutomizer took 1122.47 ms. Allocated memory is still 685.8 MB. Free memory was 620.0 MB in the beginning and 511.2 MB in the end (delta: 108.8 MB). Peak memory consumption was 108.8 MB. Max. memory is 50.3 GB. [2020-06-22 04:06:26,050 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 7 locations, 9 edges - StatisticsResult: Encoded RCFG 3 locations, 5 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 585.7 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 273.90 ms. Allocated memory was 649.6 MB in the beginning and 685.8 MB in the end (delta: 36.2 MB). Free memory was 564.1 MB in the beginning and 653.6 MB in the end (delta: -89.4 MB). Peak memory consumption was 28.3 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 32.94 ms. Allocated memory is still 685.8 MB. Free memory was 653.6 MB in the beginning and 649.1 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 18.45 ms. Allocated memory is still 685.8 MB. Free memory was 649.1 MB in the beginning and 647.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * RCFGBuilder took 189.83 ms. Allocated memory is still 685.8 MB. Free memory was 647.8 MB in the beginning and 636.0 MB in the end (delta: 11.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 73.23 ms. Allocated memory is still 685.8 MB. Free memory was 636.0 MB in the beginning and 629.6 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 50.3 GB. * TraceAbstraction took 150.01 ms. Allocated memory is still 685.8 MB. Free memory was 629.6 MB in the beginning and 620.0 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 1122.47 ms. Allocated memory is still 685.8 MB. Free memory was 620.0 MB in the beginning and 511.2 MB in the end (delta: 108.8 MB). Peak memory consumption was 108.8 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: 14]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 3 locations, 0 error locations. SAFE Result, 0.0s OverallTime, 0 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 1 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (0 trivial, 0 deterministic, 2 nondeterministic). One nondeterministic module has affine ranking function x and consists of 3 locations. One nondeterministic module has affine ranking function y and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.0s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 0.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 7 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 7 SDtfs, 13 SDslu, 1 SDs, 0 SdLazy, 24 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital17 mio100 ax100 hnf100 lsp57 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 24ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 0 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 04:06:20.886 ----------------------------------------------- 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 04:06:26.290 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check