YES Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-22 06:54:25,231 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-22 06:54:25,233 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-22 06:54:25,245 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-22 06:54:25,245 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-22 06:54:25,246 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-22 06:54:25,248 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-22 06:54:25,249 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-22 06:54:25,251 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-22 06:54:25,252 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-22 06:54:25,252 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-22 06:54:25,253 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-22 06:54:25,254 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-22 06:54:25,254 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-22 06:54:25,255 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-22 06:54:25,256 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-22 06:54:25,257 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-22 06:54:25,259 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-22 06:54:25,261 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-22 06:54:25,263 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-22 06:54:25,264 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-22 06:54:25,265 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-22 06:54:25,267 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-22 06:54:25,267 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-22 06:54:25,267 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-22 06:54:25,268 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-22 06:54:25,268 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-22 06:54:25,269 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-22 06:54:25,269 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-22 06:54:25,270 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-22 06:54:25,271 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-22 06:54:25,272 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-22 06:54:25,272 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-22 06:54:25,273 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-22 06:54:25,273 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-22 06:54:25,274 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-22 06:54:25,274 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-22 06:54:25,275 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-22 06:54:25,275 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-22 06:54:25,276 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-06-22 06:54:25,290 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-22 06:54:25,290 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-22 06:54:25,291 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-22 06:54:25,292 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-22 06:54:25,292 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-22 06:54:25,292 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-22 06:54:25,292 INFO L133 SettingsManager]: * Use SBE=true [2020-06-22 06:54:25,292 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-22 06:54:25,292 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-22 06:54:25,293 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-22 06:54:25,293 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-22 06:54:25,293 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-22 06:54:25,293 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-22 06:54:25,293 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-22 06:54:25,293 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 06:54:25,294 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-22 06:54:25,294 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-22 06:54:25,294 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-22 06:54:25,294 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-22 06:54:25,294 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-22 06:54:25,294 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-22 06:54:25,295 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-22 06:54:25,295 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-22 06:54:25,295 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-22 06:54:25,295 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 06:54:25,295 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-22 06:54:25,296 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-22 06:54:25,296 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-22 06:54:25,296 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-22 06:54:25,321 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-22 06:54:25,335 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-22 06:54:25,338 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-22 06:54:25,340 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-22 06:54:25,340 INFO L276 PluginConnector]: CDTParser initialized [2020-06-22 06:54:25,341 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 06:54:25,405 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/f4ad3810b7a84af89428e4340a26d488/FLAG8e0611083 [2020-06-22 06:54:25,751 INFO L307 CDTParser]: Found 1 translation units. [2020-06-22 06:54:25,751 INFO L161 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 06:54:25,757 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/f4ad3810b7a84af89428e4340a26d488/FLAG8e0611083 [2020-06-22 06:54:26,146 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/f4ad3810b7a84af89428e4340a26d488 [2020-06-22 06:54:26,158 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-22 06:54:26,159 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-22 06:54:26,160 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-22 06:54:26,161 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-22 06:54:26,164 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-22 06:54:26,165 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 06:54:26" (1/1) ... [2020-06-22 06:54:26,168 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43c7ebea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 06:54:26, skipping insertion in model container [2020-06-22 06:54:26,168 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 06:54:26" (1/1) ... [2020-06-22 06:54:26,176 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-22 06:54:26,192 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-22 06:54:26,346 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 06:54:26,351 INFO L191 MainTranslator]: Completed pre-run [2020-06-22 06:54:26,425 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 06:54:26,440 INFO L195 MainTranslator]: Completed translation [2020-06-22 06:54:26,441 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 06:54:26 WrapperNode [2020-06-22 06:54:26,441 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-22 06:54:26,442 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-22 06:54:26,442 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-22 06:54:26,442 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-22 06:54:26,452 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 06:54:26" (1/1) ... [2020-06-22 06:54:26,457 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 06:54:26" (1/1) ... [2020-06-22 06:54:26,477 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-22 06:54:26,477 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-22 06:54:26,478 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-22 06:54:26,478 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-22 06:54:26,489 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 06:54:26" (1/1) ... [2020-06-22 06:54:26,489 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 06:54:26" (1/1) ... [2020-06-22 06:54:26,489 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 06:54:26" (1/1) ... [2020-06-22 06:54:26,490 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 06:54:26" (1/1) ... [2020-06-22 06:54:26,491 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 06:54:26" (1/1) ... [2020-06-22 06:54:26,496 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 06:54:26" (1/1) ... [2020-06-22 06:54:26,497 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 06:54:26" (1/1) ... [2020-06-22 06:54:26,498 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-22 06:54:26,498 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-22 06:54:26,498 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-22 06:54:26,499 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-22 06:54:26,499 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 06:54:26" (1/1) ... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 06:54:26,572 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-22 06:54:26,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-22 06:54:26,710 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-22 06:54:26,710 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. [2020-06-22 06:54:26,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 06:54:26 BoogieIcfgContainer [2020-06-22 06:54:26,712 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-22 06:54:26,712 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-22 06:54:26,713 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-22 06:54:26,715 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-22 06:54:26,716 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 06:54:26" (1/1) ... [2020-06-22 06:54:26,730 INFO L313 BlockEncoder]: Initial Icfg 8 locations, 10 edges [2020-06-22 06:54:26,732 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-22 06:54:26,733 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-22 06:54:26,733 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-22 06:54:26,734 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-22 06:54:26,735 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-22 06:54:26,736 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-22 06:54:26,736 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-22 06:54:26,751 INFO L185 BlockEncoder]: Using Use SBE [2020-06-22 06:54:26,759 INFO L200 BlockEncoder]: SBE split 0 edges [2020-06-22 06:54:26,764 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-06-22 06:54:26,766 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 06:54:26,782 INFO L100 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2020-06-22 06:54:26,784 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-06-22 06:54:26,786 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 06:54:26,786 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 06:54:26,786 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-22 06:54:26,787 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 06:54:26,787 INFO L313 BlockEncoder]: Encoded RCFG 4 locations, 5 edges [2020-06-22 06:54:26,787 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 06:54:26 BasicIcfg [2020-06-22 06:54:26,787 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-22 06:54:26,788 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-22 06:54:26,789 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-22 06:54:26,792 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-22 06:54:26,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.06 06:54:26" (1/4) ... [2020-06-22 06:54:26,794 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15caa28c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 06:54:26, skipping insertion in model container [2020-06-22 06:54:26,794 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 06:54:26" (2/4) ... [2020-06-22 06:54:26,794 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15caa28c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 06:54:26, skipping insertion in model container [2020-06-22 06:54:26,795 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 06:54:26" (3/4) ... [2020-06-22 06:54:26,795 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15caa28c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 06:54:26, skipping insertion in model container [2020-06-22 06:54:26,795 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 06:54:26" (4/4) ... [2020-06-22 06:54:26,797 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 06:54:26,808 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-22 06:54:26,816 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-06-22 06:54:26,835 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-06-22 06:54:26,866 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 06:54:26,867 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-22 06:54:26,867 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-22 06:54:26,867 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 06:54:26,867 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 06:54:26,867 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 06:54:26,868 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-22 06:54:26,868 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 06:54:26,868 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-22 06:54:26,883 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states. [2020-06-22 06:54:26,889 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-06-22 06:54:26,892 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-06-22 06:54:26,944 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-06-22 06:54:26,944 INFO L448 ceAbstractionStarter]: For program point L6(line 6) no Hoare annotation was computed. [2020-06-22 06:54:26,944 INFO L451 ceAbstractionStarter]: At program point L6-1(lines 4 8) the Hoare annotation is: true [2020-06-22 06:54:26,944 INFO L451 ceAbstractionStarter]: At program point L4-2(lines 4 8) the Hoare annotation is: true [2020-06-22 06:54:26,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 06:54:26 BasicIcfg [2020-06-22 06:54:26,953 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-22 06:54:26,953 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-22 06:54:26,953 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-22 06:54:26,957 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-22 06:54:26,957 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 06:54:26,958 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.06 06:54:26" (1/5) ... [2020-06-22 06:54:26,958 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1aff59c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 06:54:26, skipping insertion in model container [2020-06-22 06:54:26,958 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 06:54:26,958 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 06:54:26" (2/5) ... [2020-06-22 06:54:26,959 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1aff59c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 06:54:26, skipping insertion in model container [2020-06-22 06:54:26,959 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 06:54:26,959 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 06:54:26" (3/5) ... [2020-06-22 06:54:26,960 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1aff59c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 06:54:26, skipping insertion in model container [2020-06-22 06:54:26,960 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 06:54:26,960 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 06:54:26" (4/5) ... [2020-06-22 06:54:26,960 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1aff59c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 06:54:26, skipping insertion in model container [2020-06-22 06:54:26,960 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 06:54:26,960 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 06:54:26" (5/5) ... [2020-06-22 06:54:26,962 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 06:54:26,989 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 06:54:26,990 INFO L374 BuchiCegarLoop]: Interprodecural is true [2020-06-22 06:54:26,990 INFO L375 BuchiCegarLoop]: Hoare is true [2020-06-22 06:54:26,990 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 06:54:26,990 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 06:54:26,990 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 06:54:26,990 INFO L379 BuchiCegarLoop]: Difference is false [2020-06-22 06:54:26,991 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 06:54:26,991 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-06-22 06:54:26,994 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states. [2020-06-22 06:54:27,012 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 06:54:27,012 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 06:54:27,012 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 06:54:27,018 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 06:54:27,018 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 06:54:27,018 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2020-06-22 06:54:27,018 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states. [2020-06-22 06:54:27,019 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 06:54:27,019 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 06:54:27,019 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 06:54:27,019 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 06:54:27,020 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 06:54:27,025 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [25] ULTIMATE.startENTRY-->L4-2: Formula: (and (= v_ULTIMATE.start_main_~i~0_1 0) (= v_ULTIMATE.start_main_~c~0_1 0)) InVars {} OutVars{ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_1, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_#t~post1=|v_ULTIMATE.start_main_#t~post1_1|, ULTIMATE.start_main_#t~post0=|v_ULTIMATE.start_main_#t~post0_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_#res, ULTIMATE.start_main_~c~0, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_#t~post1, ULTIMATE.start_main_#t~post0] 6#L4-2true [2020-06-22 06:54:27,025 INFO L796 eck$LassoCheckResult]: Loop: 6#L4-2true [29] L4-2-->L6-1: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 3#L6-1true [24] L6-1-->L6: Formula: (and (= (+ v_ULTIMATE.start_main_~i~0_6 1) v_ULTIMATE.start_main_~i~0_5) (< v_ULTIMATE.start_main_~i~0_6 20)) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_6} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_5, ULTIMATE.start_main_#t~post0=|v_ULTIMATE.start_main_#t~post0_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0, ULTIMATE.start_main_#t~post0] 5#L6true [34] L6-->L4-2: Formula: (and (> v_ULTIMATE.start_main_~i~0_8 10) (= v_ULTIMATE.start_main_~c~0_5 (+ v_ULTIMATE.start_main_~c~0_6 1))) InVars {ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_6, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8} OutVars{ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_5, ULTIMATE.start_main_#t~post1=|v_ULTIMATE.start_main_#t~post1_2|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~c~0, ULTIMATE.start_main_#t~post1] 6#L4-2true [2020-06-22 06:54:27,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 06:54:27,032 INFO L82 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 1 times [2020-06-22 06:54:27,034 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 06:54:27,034 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 06:54:27,054 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 06:54:27,055 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 06:54:27,055 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 06:54:27,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 06:54:27,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 06:54:27,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 06:54:27,100 INFO L82 PathProgramCache]: Analyzing trace with hash 58438, now seen corresponding path program 1 times [2020-06-22 06:54:27,100 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 06:54:27,100 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 06:54:27,101 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 06:54:27,102 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 06:54:27,102 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 06:54:27,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 06:54:27,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 06:54:27,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 06:54:27,117 INFO L82 PathProgramCache]: Analyzing trace with hash 1696943, now seen corresponding path program 1 times [2020-06-22 06:54:27,117 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 06:54:27,117 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 06:54:27,118 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 06:54:27,118 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 06:54:27,118 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 06:54:27,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 06:54:27,175 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 06:54:27,177 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 06:54:27,177 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-06-22 06:54:27,224 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 06:54:27,225 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 06:54:27,226 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 06:54:27,226 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 06:54:27,226 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 06:54:27,226 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 06:54:27,226 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 06:54:27,226 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 06:54:27,227 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 06:54:27,227 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 06:54:27,227 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 06:54:27,245 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 06:54:27,267 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 06:54:27,270 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 06:54:27,274 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 06:54:27,337 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 06:54:27,338 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 06:54:27,346 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 06:54:27,346 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 06:54:27,379 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 06:54:27,379 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 06:54:27,411 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 06:54:27,413 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 06:54:27,413 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 06:54:27,413 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 06:54:27,414 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 06:54:27,414 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 06:54:27,414 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 06:54:27,414 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 06:54:27,414 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 06:54:27,414 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 06:54:27,414 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 06:54:27,415 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 06:54:27,416 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 06:54:27,426 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 06:54:27,429 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 06:54:27,440 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 06:54:27,507 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 06:54:27,513 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 06:54:27,514 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 06:54:27,516 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 06:54:27,516 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 06:54:27,517 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 06:54:27,517 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 06:54:27,517 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 06:54:27,520 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 06:54:27,520 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 06:54:27,528 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 06:54:27,536 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 06:54:27,536 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2020-06-22 06:54:27,538 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 06:54:27,538 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 06:54:27,539 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 06:54:27,540 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 39 Supporting invariants [] [2020-06-22 06:54:27,541 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 06:54:27,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 06:54:27,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 06:54:27,579 INFO L256 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 06:54:27,580 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 06:54:27,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 06:54:27,590 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 06:54:27,591 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 06:54:27,619 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 06:54:27,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 06:54:27,636 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 06:54:27,636 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 06:54:27,637 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-06-22 06:54:27,642 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 06:54:27,643 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 4 states. Second operand 4 states. [2020-06-22 06:54:27,668 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 4 states.. Second operand 4 states. Result 8 states and 10 transitions. Complement of second has 4 states. [2020-06-22 06:54:27,668 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 06:54:27,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-06-22 06:54:27,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2020-06-22 06:54:27,672 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 1 letters. Loop has 3 letters. [2020-06-22 06:54:27,674 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 06:54:27,674 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 4 letters. Loop has 3 letters. [2020-06-22 06:54:27,674 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 06:54:27,674 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 1 letters. Loop has 6 letters. [2020-06-22 06:54:27,675 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 06:54:27,681 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 10 transitions. [2020-06-22 06:54:27,682 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 06:54:27,684 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 0 states and 0 transitions. [2020-06-22 06:54:27,685 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-06-22 06:54:27,686 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-06-22 06:54:27,686 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-06-22 06:54:27,686 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 06:54:27,686 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 06:54:27,687 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 06:54:27,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-06-22 06:54:27,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-06-22 06:54:27,690 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 4 states. [2020-06-22 06:54:27,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 06:54:27,693 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-06-22 06:54:27,693 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-06-22 06:54:27,694 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2020-06-22 06:54:27,694 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 06:54:27,694 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2020-06-22 06:54:27,695 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-06-22 06:54:27,695 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-06-22 06:54:27,695 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-06-22 06:54:27,695 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 06:54:27,695 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 06:54:27,695 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 06:54:27,695 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 06:54:27,696 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2020-06-22 06:54:27,696 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-06-22 06:54:27,696 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 06:54:27,696 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-06-22 06:54:27,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 06:54:27 BasicIcfg [2020-06-22 06:54:27,702 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-22 06:54:27,702 INFO L168 Benchmark]: Toolchain (without parser) took 1543.84 ms. Allocated memory was 649.6 MB in the beginning and 693.1 MB in the end (delta: 43.5 MB). Free memory was 560.9 MB in the beginning and 564.3 MB in the end (delta: -3.5 MB). Peak memory consumption was 40.1 MB. Max. memory is 50.3 GB. [2020-06-22 06:54:27,704 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 06:54:27,704 INFO L168 Benchmark]: CACSL2BoogieTranslator took 280.94 ms. Allocated memory was 649.6 MB in the beginning and 693.1 MB in the end (delta: 43.5 MB). Free memory was 559.8 MB in the beginning and 661.1 MB in the end (delta: -101.3 MB). Peak memory consumption was 28.9 MB. Max. memory is 50.3 GB. [2020-06-22 06:54:27,705 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.46 ms. Allocated memory is still 693.1 MB. Free memory was 661.1 MB in the beginning and 658.9 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 50.3 GB. [2020-06-22 06:54:27,706 INFO L168 Benchmark]: Boogie Preprocessor took 20.41 ms. Allocated memory is still 693.1 MB. Free memory was 658.9 MB in the beginning and 656.0 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 50.3 GB. [2020-06-22 06:54:27,707 INFO L168 Benchmark]: RCFGBuilder took 213.77 ms. Allocated memory is still 693.1 MB. Free memory was 656.0 MB in the beginning and 642.6 MB in the end (delta: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 50.3 GB. [2020-06-22 06:54:27,707 INFO L168 Benchmark]: BlockEncodingV2 took 75.25 ms. Allocated memory is still 693.1 MB. Free memory was 642.6 MB in the beginning and 638.3 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 50.3 GB. [2020-06-22 06:54:27,708 INFO L168 Benchmark]: TraceAbstraction took 164.33 ms. Allocated memory is still 693.1 MB. Free memory was 637.2 MB in the beginning and 627.5 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 50.3 GB. [2020-06-22 06:54:27,708 INFO L168 Benchmark]: BuchiAutomizer took 748.52 ms. Allocated memory is still 693.1 MB. Free memory was 627.5 MB in the beginning and 564.3 MB in the end (delta: 63.1 MB). Peak memory consumption was 63.1 MB. Max. memory is 50.3 GB. [2020-06-22 06:54:27,713 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 8 locations, 10 edges - StatisticsResult: Encoded RCFG 4 locations, 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 280.94 ms. Allocated memory was 649.6 MB in the beginning and 693.1 MB in the end (delta: 43.5 MB). Free memory was 559.8 MB in the beginning and 661.1 MB in the end (delta: -101.3 MB). Peak memory consumption was 28.9 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 35.46 ms. Allocated memory is still 693.1 MB. Free memory was 661.1 MB in the beginning and 658.9 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 20.41 ms. Allocated memory is still 693.1 MB. Free memory was 658.9 MB in the beginning and 656.0 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 50.3 GB. * RCFGBuilder took 213.77 ms. Allocated memory is still 693.1 MB. Free memory was 656.0 MB in the beginning and 642.6 MB in the end (delta: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 75.25 ms. Allocated memory is still 693.1 MB. Free memory was 642.6 MB in the beginning and 638.3 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 50.3 GB. * TraceAbstraction took 164.33 ms. Allocated memory is still 693.1 MB. Free memory was 637.2 MB in the beginning and 627.5 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 748.52 ms. Allocated memory is still 693.1 MB. Free memory was 627.5 MB in the beginning and 564.3 MB in the end (delta: 63.1 MB). Peak memory consumption was 63.1 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: 4]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 4]: 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, 2 LocationsWithAnnotation, 2 PreInvPairs, 2 NumberOfFragments, 2 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (1 trivial, 0 deterministic, 1 nondeterministic). One nondeterministic module has affine ranking function -2 * i + 39 and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.7s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 5 SDtfs, 8 SDslu, 1 SDs, 0 SdLazy, 6 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax100 hnf100 lsp72 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq146 hnf94 smp100 dnf100 smp100 tf111 neg100 sie120 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 25ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-06-22 06:54:22.800 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox2/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox2/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-06-22 06:54:27.945 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check