YES Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-22 04:51:53,754 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-22 04:51:53,756 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-22 04:51:53,767 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-22 04:51:53,768 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-22 04:51:53,768 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-22 04:51:53,770 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-22 04:51:53,771 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-22 04:51:53,773 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-22 04:51:53,774 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-22 04:51:53,775 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-22 04:51:53,775 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-22 04:51:53,776 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-22 04:51:53,777 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-22 04:51:53,778 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-22 04:51:53,778 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-22 04:51:53,779 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-22 04:51:53,781 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-22 04:51:53,783 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-22 04:51:53,784 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-22 04:51:53,785 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-22 04:51:53,786 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-22 04:51:53,788 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-22 04:51:53,788 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-22 04:51:53,789 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-22 04:51:53,789 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-22 04:51:53,790 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-22 04:51:53,791 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-22 04:51:53,791 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-22 04:51:53,792 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-22 04:51:53,792 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-22 04:51:53,793 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-22 04:51:53,794 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-22 04:51:53,794 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-22 04:51:53,795 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-22 04:51:53,795 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-22 04:51:53,795 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-22 04:51:53,796 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-22 04:51:53,797 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-22 04:51:53,797 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-06-22 04:51:53,812 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-22 04:51:53,812 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-22 04:51:53,813 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-22 04:51:53,813 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-22 04:51:53,813 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-22 04:51:53,813 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-22 04:51:53,814 INFO L133 SettingsManager]: * Use SBE=true [2020-06-22 04:51:53,814 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-22 04:51:53,814 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-22 04:51:53,814 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-22 04:51:53,814 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-22 04:51:53,814 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-22 04:51:53,815 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-22 04:51:53,815 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-22 04:51:53,815 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 04:51:53,815 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-22 04:51:53,815 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-22 04:51:53,815 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-22 04:51:53,816 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-22 04:51:53,816 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-22 04:51:53,816 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-22 04:51:53,816 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-22 04:51:53,816 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-22 04:51:53,816 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-22 04:51:53,817 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 04:51:53,817 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-22 04:51:53,817 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-22 04:51:53,817 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-22 04:51:53,817 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-22 04:51:53,842 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-22 04:51:53,856 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-22 04:51:53,859 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-22 04:51:53,861 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-22 04:51:53,861 INFO L276 PluginConnector]: CDTParser initialized [2020-06-22 04:51:53,862 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 04:51:53,964 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/0b7b5b366c2141eb9531d764cae08974/FLAG3b47a600a [2020-06-22 04:51:54,301 INFO L307 CDTParser]: Found 1 translation units. [2020-06-22 04:51:54,301 INFO L161 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 04:51:54,332 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/0b7b5b366c2141eb9531d764cae08974/FLAG3b47a600a [2020-06-22 04:51:54,714 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/0b7b5b366c2141eb9531d764cae08974 [2020-06-22 04:51:54,730 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-22 04:51:54,732 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-22 04:51:54,733 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-22 04:51:54,733 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-22 04:51:54,737 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-22 04:51:54,738 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 04:51:54" (1/1) ... [2020-06-22 04:51:54,742 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f4a0f35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:51:54, skipping insertion in model container [2020-06-22 04:51:54,742 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 04:51:54" (1/1) ... [2020-06-22 04:51:54,752 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-22 04:51:54,770 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-22 04:51:54,944 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 04:51:54,949 INFO L191 MainTranslator]: Completed pre-run [2020-06-22 04:51:55,019 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 04:51:55,034 INFO L195 MainTranslator]: Completed translation [2020-06-22 04:51:55,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:51:55 WrapperNode [2020-06-22 04:51:55,034 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-22 04:51:55,035 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-22 04:51:55,035 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-22 04:51:55,035 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-22 04:51:55,045 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:51:55" (1/1) ... [2020-06-22 04:51:55,050 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:51:55" (1/1) ... [2020-06-22 04:51:55,068 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-22 04:51:55,069 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-22 04:51:55,069 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-22 04:51:55,069 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-22 04:51:55,078 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:51:55" (1/1) ... [2020-06-22 04:51:55,078 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:51:55" (1/1) ... [2020-06-22 04:51:55,079 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:51:55" (1/1) ... [2020-06-22 04:51:55,079 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:51:55" (1/1) ... [2020-06-22 04:51:55,081 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:51:55" (1/1) ... [2020-06-22 04:51:55,086 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:51:55" (1/1) ... [2020-06-22 04:51:55,086 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:51:55" (1/1) ... [2020-06-22 04:51:55,087 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-22 04:51:55,088 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-22 04:51:55,088 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-22 04:51:55,088 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-22 04:51:55,089 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:51:55" (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 04:51:55,159 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-22 04:51:55,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-22 04:51:55,332 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-22 04:51:55,333 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. [2020-06-22 04:51:55,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 04:51:55 BoogieIcfgContainer [2020-06-22 04:51:55,334 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-22 04:51:55,335 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-22 04:51:55,335 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-22 04:51:55,337 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-22 04:51:55,338 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 04:51:55" (1/1) ... [2020-06-22 04:51:55,353 INFO L313 BlockEncoder]: Initial Icfg 8 locations, 11 edges [2020-06-22 04:51:55,355 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-22 04:51:55,356 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-22 04:51:55,356 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-22 04:51:55,357 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-22 04:51:55,359 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-22 04:51:55,360 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-22 04:51:55,360 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-22 04:51:55,375 INFO L185 BlockEncoder]: Using Use SBE [2020-06-22 04:51:55,389 INFO L200 BlockEncoder]: SBE split 1 edges [2020-06-22 04:51:55,393 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-06-22 04:51:55,395 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 04:51:55,405 INFO L100 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2020-06-22 04:51:55,408 INFO L70 RemoveSinkStates]: Removed 3 edges and 2 locations by removing sink states [2020-06-22 04:51:55,410 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 04:51:55,410 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 04:51:55,414 INFO L100 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2020-06-22 04:51:55,414 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 04:51:55,414 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 04:51:55,414 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 04:51:55,415 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-22 04:51:55,415 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 04:51:55,415 INFO L313 BlockEncoder]: Encoded RCFG 3 locations, 5 edges [2020-06-22 04:51:55,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 04:51:55 BasicIcfg [2020-06-22 04:51:55,416 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-22 04:51:55,417 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-22 04:51:55,417 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-22 04:51:55,420 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-22 04:51:55,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.06 04:51:54" (1/4) ... [2020-06-22 04:51:55,421 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2625d1d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 04:51:55, skipping insertion in model container [2020-06-22 04:51:55,422 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:51:55" (2/4) ... [2020-06-22 04:51:55,422 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2625d1d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 04:51:55, skipping insertion in model container [2020-06-22 04:51:55,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 04:51:55" (3/4) ... [2020-06-22 04:51:55,423 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2625d1d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 04:51:55, skipping insertion in model container [2020-06-22 04:51:55,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 04:51:55" (4/4) ... [2020-06-22 04:51:55,425 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 04:51:55,435 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-22 04:51:55,443 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-06-22 04:51:55,461 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-06-22 04:51:55,489 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 04:51:55,489 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-22 04:51:55,490 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-22 04:51:55,490 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 04:51:55,490 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 04:51:55,490 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 04:51:55,490 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-22 04:51:55,490 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 04:51:55,490 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-22 04:51:55,505 INFO L276 IsEmpty]: Start isEmpty. Operand 3 states. [2020-06-22 04:51:55,510 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-06-22 04:51:55,513 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. [2020-06-22 04:51:55,562 INFO L451 ceAbstractionStarter]: At program point L18-2(lines 17 25) the Hoare annotation is: true [2020-06-22 04:51:55,563 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-06-22 04:51:55,563 INFO L448 ceAbstractionStarter]: For program point L18(lines 18 24) no Hoare annotation was computed. [2020-06-22 04:51:55,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 04:51:55 BasicIcfg [2020-06-22 04:51:55,571 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-22 04:51:55,571 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-22 04:51:55,571 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-22 04:51:55,575 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-22 04:51:55,576 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 04:51:55,576 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.06 04:51:54" (1/5) ... [2020-06-22 04:51:55,576 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@729ece19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 04:51:55, skipping insertion in model container [2020-06-22 04:51:55,577 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 04:51:55,577 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:51:55" (2/5) ... [2020-06-22 04:51:55,577 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@729ece19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 04:51:55, skipping insertion in model container [2020-06-22 04:51:55,577 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 04:51:55,577 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 04:51:55" (3/5) ... [2020-06-22 04:51:55,578 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@729ece19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 04:51:55, skipping insertion in model container [2020-06-22 04:51:55,578 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 04:51:55,578 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 04:51:55" (4/5) ... [2020-06-22 04:51:55,579 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@729ece19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 04:51:55, skipping insertion in model container [2020-06-22 04:51:55,579 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 04:51:55,579 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 04:51:55" (5/5) ... [2020-06-22 04:51:55,580 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 04:51:55,611 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 04:51:55,611 INFO L374 BuchiCegarLoop]: Interprodecural is true [2020-06-22 04:51:55,611 INFO L375 BuchiCegarLoop]: Hoare is true [2020-06-22 04:51:55,611 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 04:51:55,612 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 04:51:55,612 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 04:51:55,612 INFO L379 BuchiCegarLoop]: Difference is false [2020-06-22 04:51:55,612 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 04:51:55,612 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-06-22 04:51:55,616 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-06-22 04:51:55,633 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 04:51:55,633 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 04:51:55,634 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 04:51:55,641 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 04:51:55,641 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 04:51:55,641 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2020-06-22 04:51:55,641 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-06-22 04:51:55,642 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 04:51:55,642 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 04:51:55,642 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 04:51:55,642 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 04:51:55,642 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 04:51:55,647 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [48] ULTIMATE.startENTRY-->L18-2: Formula: (let ((.cse0 (* 2 v_ULTIMATE.start_main_~r~0_8))) (and (= .cse0 v_ULTIMATE.start_main_~db~0_7) (= .cse0 v_ULTIMATE.start_main_~da~0_11) (<= 0 v_ULTIMATE.start_main_~r~0_8))) InVars {} OutVars{ULTIMATE.start_main_~da~0=v_ULTIMATE.start_main_~da~0_11, ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_6|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_6|, ULTIMATE.start_main_~db~0=v_ULTIMATE.start_main_~db~0_7, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_~temp~0=v_ULTIMATE.start_main_~temp~0_5, ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_4|, ULTIMATE.start_main_~r~0=v_ULTIMATE.start_main_~r~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~da~0, ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~db~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~temp~0, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_~r~0] 4#L18-2true [2020-06-22 04:51:55,648 INFO L796 eck$LassoCheckResult]: Loop: 4#L18-2true [33] L18-2-->L18: Formula: (<= v_ULTIMATE.start_main_~r~0_7 v_ULTIMATE.start_main_~da~0_10) InVars {ULTIMATE.start_main_~da~0=v_ULTIMATE.start_main_~da~0_10, ULTIMATE.start_main_~r~0=v_ULTIMATE.start_main_~r~0_7} OutVars{ULTIMATE.start_main_~da~0=v_ULTIMATE.start_main_~da~0_10, ULTIMATE.start_main_~r~0=v_ULTIMATE.start_main_~r~0_7} AuxVars[] AssignedVars[] 5#L18true [36] L18-->L18-2: Formula: (and (= v_ULTIMATE.start_main_~db~0_4 v_ULTIMATE.start_main_~da~0_6) (= 0 |v_ULTIMATE.start_main_#t~nondet1_5|) (= v_ULTIMATE.start_main_~da~0_6 (+ v_ULTIMATE.start_main_~db~0_5 (- 1))) (= v_ULTIMATE.start_main_~temp~0_4 v_ULTIMATE.start_main_~da~0_7)) InVars {ULTIMATE.start_main_~da~0=v_ULTIMATE.start_main_~da~0_7, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_5|, ULTIMATE.start_main_~db~0=v_ULTIMATE.start_main_~db~0_5} OutVars{ULTIMATE.start_main_~da~0=v_ULTIMATE.start_main_~da~0_6, ULTIMATE.start_main_~temp~0=v_ULTIMATE.start_main_~temp~0_4, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_4|, ULTIMATE.start_main_~db~0=v_ULTIMATE.start_main_~db~0_4} AuxVars[] AssignedVars[ULTIMATE.start_main_~da~0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~db~0, ULTIMATE.start_main_~temp~0] 4#L18-2true [2020-06-22 04:51:55,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 04:51:55,654 INFO L82 PathProgramCache]: Analyzing trace with hash 79, now seen corresponding path program 1 times [2020-06-22 04:51:55,655 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 04:51:55,656 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 04:51:55,675 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:51:55,676 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 04:51:55,676 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:51:55,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:51:55,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:51:55,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 04:51:55,729 INFO L82 PathProgramCache]: Analyzing trace with hash 2020, now seen corresponding path program 1 times [2020-06-22 04:51:55,729 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 04:51:55,729 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 04:51:55,730 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:51:55,730 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 04:51:55,731 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:51:55,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:51:55,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:51:55,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 04:51:55,741 INFO L82 PathProgramCache]: Analyzing trace with hash 76978, now seen corresponding path program 1 times [2020-06-22 04:51:55,741 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 04:51:55,741 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 04:51:55,742 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:51:55,742 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 04:51:55,742 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:51:55,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:51:55,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:51:55,816 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 04:51:55,817 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 04:51:55,817 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 04:51:55,817 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 04:51:55,818 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 04:51:55,818 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 04:51:55,818 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 04:51:55,818 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 04:51:55,818 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 04:51:55,818 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 04:51:55,819 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 04:51:55,837 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 04:51:55,866 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 04:51:55,943 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 04:51:55,944 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) [2020-06-22 04:51:55,958 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 04:51:55,958 INFO L163 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 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 04:51:56,003 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 04:51:56,003 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 04:52:08,017 INFO L450 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2020-06-22 04:52:08,021 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 04:52:08,021 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 04:52:08,021 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 04:52:08,021 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 04:52:08,022 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 04:52:08,022 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 04:52:08,022 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 04:52:08,022 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 04:52:08,022 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 04:52:08,022 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 04:52:08,022 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 04:52:08,024 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 04:52:08,044 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:52:08,127 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 04:52:08,132 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 04:52:08,134 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 04:52:08,136 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 04:52:08,136 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 04:52:08,137 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 04:52:08,137 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 04:52:08,137 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 04:52:08,140 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 04:52:08,140 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 04:52:08,154 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 04:52:08,155 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 04:52:08,156 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 04:52:08,156 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 04:52:08,156 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 04:52:08,156 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 04:52:08,156 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 04:52:08,157 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 04:52:08,157 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 04:52:08,159 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 04:52:08,159 INFO L497 LassoAnalysis]: Using template '2-nested'. [2020-06-22 04:52:08,159 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 04:52:08,160 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 04:52:08,160 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 04:52:08,160 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 04:52:08,161 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 04:52:08,161 INFO L207 nArgumentSynthesizer]: 3 template conjuncts. [2020-06-22 04:52:08,163 INFO L402 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-06-22 04:52:08,163 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 04:52:08,182 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 04:52:08,208 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2020-06-22 04:52:08,208 INFO L444 ModelExtractionUtils]: 4 out of 11 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 04:52:08,210 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 04:52:08,211 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 04:52:08,211 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 04:52:08,211 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = 2*ULTIMATE.start_main_~db~0 - 2*ULTIMATE.start_main_~r~0 f1 = 2*ULTIMATE.start_main_~da~0 - 2*ULTIMATE.start_main_~r~0 + 1 Supporting invariants [] [2020-06-22 04:52:08,214 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 04:52:08,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 04:52:08,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 04:52:08,273 INFO L256 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 04:52:08,274 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 04:52:08,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 04:52:08,288 WARN L254 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 6 conjunts are in the unsatisfiable core [2020-06-22 04:52:08,289 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 04:52:08,356 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 04:52:08,607 INFO L98 LoopCannibalizer]: 11 predicates before loop cannibalization 11 predicates after loop cannibalization [2020-06-22 04:52:08,612 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 11 loop predicates [2020-06-22 04:52:08,613 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 3 states. Second operand 3 states. [2020-06-22 04:52:08,754 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 3 states.. Second operand 3 states. Result 8 states and 14 transitions. Complement of second has 4 states. [2020-06-22 04:52:08,755 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 04:52:08,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-06-22 04:52:08,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2020-06-22 04:52:08,759 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 1 letters. Loop has 2 letters. [2020-06-22 04:52:08,760 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 04:52:08,760 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 3 letters. Loop has 2 letters. [2020-06-22 04:52:08,761 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 04:52:08,761 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 1 letters. Loop has 4 letters. [2020-06-22 04:52:08,761 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 04:52:08,768 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 14 transitions. [2020-06-22 04:52:08,769 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 04:52:08,773 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 8 states and 14 transitions. [2020-06-22 04:52:08,774 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2020-06-22 04:52:08,774 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2020-06-22 04:52:08,775 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 14 transitions. [2020-06-22 04:52:08,775 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 04:52:08,775 INFO L706 BuchiCegarLoop]: Abstraction has 8 states and 14 transitions. [2020-06-22 04:52:08,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 14 transitions. [2020-06-22 04:52:08,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2020-06-22 04:52:08,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-06-22 04:52:08,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 12 transitions. [2020-06-22 04:52:08,806 INFO L729 BuchiCegarLoop]: Abstraction has 7 states and 12 transitions. [2020-06-22 04:52:08,807 INFO L609 BuchiCegarLoop]: Abstraction has 7 states and 12 transitions. [2020-06-22 04:52:08,807 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2020-06-22 04:52:08,807 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 12 transitions. [2020-06-22 04:52:08,807 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 04:52:08,807 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 04:52:08,808 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 04:52:08,808 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 04:52:08,808 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 04:52:08,808 INFO L794 eck$LassoCheckResult]: Stem: 61#ULTIMATE.startENTRY [48] ULTIMATE.startENTRY-->L18-2: Formula: (let ((.cse0 (* 2 v_ULTIMATE.start_main_~r~0_8))) (and (= .cse0 v_ULTIMATE.start_main_~db~0_7) (= .cse0 v_ULTIMATE.start_main_~da~0_11) (<= 0 v_ULTIMATE.start_main_~r~0_8))) InVars {} OutVars{ULTIMATE.start_main_~da~0=v_ULTIMATE.start_main_~da~0_11, ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_6|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_6|, ULTIMATE.start_main_~db~0=v_ULTIMATE.start_main_~db~0_7, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_~temp~0=v_ULTIMATE.start_main_~temp~0_5, ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_4|, ULTIMATE.start_main_~r~0=v_ULTIMATE.start_main_~r~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~da~0, ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~db~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~temp~0, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_~r~0] 62#L18-2 [33] L18-2-->L18: Formula: (<= v_ULTIMATE.start_main_~r~0_7 v_ULTIMATE.start_main_~da~0_10) InVars {ULTIMATE.start_main_~da~0=v_ULTIMATE.start_main_~da~0_10, ULTIMATE.start_main_~r~0=v_ULTIMATE.start_main_~r~0_7} OutVars{ULTIMATE.start_main_~da~0=v_ULTIMATE.start_main_~da~0_10, ULTIMATE.start_main_~r~0=v_ULTIMATE.start_main_~r~0_7} AuxVars[] AssignedVars[] 58#L18 [2020-06-22 04:52:08,809 INFO L796 eck$LassoCheckResult]: Loop: 58#L18 [44] L18-->L18-2: Formula: (and (= (+ v_ULTIMATE.start_main_~da~0_1 1) v_ULTIMATE.start_main_~da~0_2) (< 0 |v_ULTIMATE.start_main_#t~nondet1_2|)) InVars {ULTIMATE.start_main_~da~0=v_ULTIMATE.start_main_~da~0_2, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_2|} OutVars{ULTIMATE.start_main_~da~0=v_ULTIMATE.start_main_~da~0_1, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_~da~0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~post2] 57#L18-2 [33] L18-2-->L18: Formula: (<= v_ULTIMATE.start_main_~r~0_7 v_ULTIMATE.start_main_~da~0_10) InVars {ULTIMATE.start_main_~da~0=v_ULTIMATE.start_main_~da~0_10, ULTIMATE.start_main_~r~0=v_ULTIMATE.start_main_~r~0_7} OutVars{ULTIMATE.start_main_~da~0=v_ULTIMATE.start_main_~da~0_10, ULTIMATE.start_main_~r~0=v_ULTIMATE.start_main_~r~0_7} AuxVars[] AssignedVars[] 58#L18 [2020-06-22 04:52:08,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 04:52:08,809 INFO L82 PathProgramCache]: Analyzing trace with hash 2482, now seen corresponding path program 1 times [2020-06-22 04:52:08,809 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 04:52:08,810 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 04:52:08,811 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:52:08,811 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 04:52:08,811 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:52:08,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:52:08,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:52:08,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 04:52:08,818 INFO L82 PathProgramCache]: Analyzing trace with hash 2358, now seen corresponding path program 1 times [2020-06-22 04:52:08,818 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 04:52:08,818 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 04:52:08,819 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:52:08,819 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 04:52:08,819 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:52:08,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:52:08,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:52:08,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 04:52:08,824 INFO L82 PathProgramCache]: Analyzing trace with hash 2386599, now seen corresponding path program 1 times [2020-06-22 04:52:08,824 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 04:52:08,825 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 04:52:08,826 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:52:08,826 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 04:52:08,826 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:52:08,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:52:08,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:52:08,850 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 04:52:08,850 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 04:52:08,850 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 04:52:08,850 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 04:52:08,850 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 04:52:08,850 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 04:52:08,851 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 04:52:08,851 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 04:52:08,851 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 04:52:08,851 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 04:52:08,851 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 04:52:08,852 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 04:52:08,859 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 04:52:08,863 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 04:52:08,892 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 04:52:08,893 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/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 04:52:08,897 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 04:52:08,897 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/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 04:52:08,929 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 04:52:08,929 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 04:52:09,399 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 04:52:09,402 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 04:52:09,402 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 04:52:09,402 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 04:52:09,402 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 04:52:09,403 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 04:52:09,403 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 04:52:09,403 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 04:52:09,403 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 04:52:09,404 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 04:52:09,404 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 04:52:09,404 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 04:52:09,406 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:52:09,416 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 04:52:09,420 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 04:52:09,447 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 04:52:09,447 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 04:52:09,447 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 04:52:09,449 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 04:52:09,449 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 04:52:09,449 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 04:52:09,449 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 04:52:09,449 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 04:52:09,450 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 04:52:09,451 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 04:52:09,458 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 04:52:09,463 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 04:52:09,463 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 04:52:09,464 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 04:52:09,464 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 04:52:09,464 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 04:52:09,465 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~r~0, ULTIMATE.start_main_~da~0) = -1*ULTIMATE.start_main_~r~0 + 1*ULTIMATE.start_main_~da~0 Supporting invariants [] [2020-06-22 04:52:09,465 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 04:52:09,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 04:52:09,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 04:52:09,491 INFO L256 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 04:52:09,491 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 04:52:09,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 04:52:09,495 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 04:52:09,496 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 04:52:09,516 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 04:52:09,517 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-06-22 04:52:09,517 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 04:52:09,517 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 7 states and 12 transitions. cyclomatic complexity: 7 Second operand 3 states. [2020-06-22 04:52:09,546 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 7 states and 12 transitions. cyclomatic complexity: 7. Second operand 3 states. Result 10 states and 20 transitions. Complement of second has 4 states. [2020-06-22 04:52:09,547 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 04:52:09,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-06-22 04:52:09,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2020-06-22 04:52:09,548 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 2 letters. Loop has 2 letters. [2020-06-22 04:52:09,549 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 04:52:09,549 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 4 letters. Loop has 2 letters. [2020-06-22 04:52:09,549 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 04:52:09,550 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 2 letters. Loop has 4 letters. [2020-06-22 04:52:09,550 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 04:52:09,551 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 20 transitions. [2020-06-22 04:52:09,553 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 04:52:09,553 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 0 states and 0 transitions. [2020-06-22 04:52:09,553 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-06-22 04:52:09,553 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-06-22 04:52:09,553 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-06-22 04:52:09,553 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 04:52:09,554 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 04:52:09,554 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 04:52:09,554 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 04:52:09,554 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2020-06-22 04:52:09,554 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-06-22 04:52:09,554 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 04:52:09,554 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-06-22 04:52:09,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 04:52:09 BasicIcfg [2020-06-22 04:52:09,561 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-22 04:52:09,562 INFO L168 Benchmark]: Toolchain (without parser) took 14831.18 ms. Allocated memory was 649.6 MB in the beginning and 691.5 MB in the end (delta: 41.9 MB). Free memory was 564.1 MB in the beginning and 466.2 MB in the end (delta: 97.9 MB). Peak memory consumption was 139.9 MB. Max. memory is 50.3 GB. [2020-06-22 04:52:09,564 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 649.6 MB. Free memory is still 585.7 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 04:52:09,565 INFO L168 Benchmark]: CACSL2BoogieTranslator took 301.82 ms. Allocated memory was 649.6 MB in the beginning and 691.5 MB in the end (delta: 41.9 MB). Free memory was 564.1 MB in the beginning and 659.3 MB in the end (delta: -95.2 MB). Peak memory consumption was 28.4 MB. Max. memory is 50.3 GB. [2020-06-22 04:52:09,565 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.36 ms. Allocated memory is still 691.5 MB. Free memory was 659.3 MB in the beginning and 656.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 50.3 GB. [2020-06-22 04:52:09,566 INFO L168 Benchmark]: Boogie Preprocessor took 18.77 ms. Allocated memory is still 691.5 MB. Free memory was 656.6 MB in the beginning and 654.9 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 50.3 GB. [2020-06-22 04:52:09,567 INFO L168 Benchmark]: RCFGBuilder took 246.49 ms. Allocated memory is still 691.5 MB. Free memory was 653.5 MB in the beginning and 639.4 MB in the end (delta: 14.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 50.3 GB. [2020-06-22 04:52:09,568 INFO L168 Benchmark]: BlockEncodingV2 took 81.41 ms. Allocated memory is still 691.5 MB. Free memory was 639.4 MB in the beginning and 634.0 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. [2020-06-22 04:52:09,568 INFO L168 Benchmark]: TraceAbstraction took 154.03 ms. Allocated memory is still 691.5 MB. Free memory was 634.0 MB in the beginning and 625.9 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 50.3 GB. [2020-06-22 04:52:09,569 INFO L168 Benchmark]: BuchiAutomizer took 13990.04 ms. Allocated memory is still 691.5 MB. Free memory was 624.6 MB in the beginning and 466.2 MB in the end (delta: 158.4 MB). Peak memory consumption was 158.4 MB. Max. memory is 50.3 GB. [2020-06-22 04:52:09,575 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 8 locations, 11 edges - StatisticsResult: Encoded RCFG 3 locations, 5 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 649.6 MB. Free memory is still 585.7 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 301.82 ms. Allocated memory was 649.6 MB in the beginning and 691.5 MB in the end (delta: 41.9 MB). Free memory was 564.1 MB in the beginning and 659.3 MB in the end (delta: -95.2 MB). Peak memory consumption was 28.4 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 33.36 ms. Allocated memory is still 691.5 MB. Free memory was 659.3 MB in the beginning and 656.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 18.77 ms. Allocated memory is still 691.5 MB. Free memory was 656.6 MB in the beginning and 654.9 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 50.3 GB. * RCFGBuilder took 246.49 ms. Allocated memory is still 691.5 MB. Free memory was 653.5 MB in the beginning and 639.4 MB in the end (delta: 14.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 81.41 ms. Allocated memory is still 691.5 MB. Free memory was 639.4 MB in the beginning and 634.0 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. * TraceAbstraction took 154.03 ms. Allocated memory is still 691.5 MB. Free memory was 634.0 MB in the beginning and 625.9 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 13990.04 ms. Allocated memory is still 691.5 MB. Free memory was 624.6 MB in the beginning and 466.2 MB in the end (delta: 158.4 MB). Peak memory consumption was 158.4 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: 17]: 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 2-nested ranking function (if 2 * db + -2 * r > 0 then 1 else 0), (if 2 * db + -2 * r > 0 then 2 * db + -2 * r else 2 * da + -2 * r + 1) and consists of 3 locations. One nondeterministic module has affine ranking function -1 * r + da and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 13.9s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 13.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.5s. 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: 6 SDtfs, 13 SDslu, 0 SDs, 0 SdLazy, 22 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital16 mio100 ax100 hnf100 lsp80 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq173 hnf91 smp100 dnf100 smp100 tf110 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 51ms VariablesStem: 0 VariablesLoop: 6 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 3 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 1 LassoNonterminationAnalysisTime: 12.5s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-06-22 04:51:51.437 ----------------------------------------------- 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 04:52:09.817 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check