YES Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-22 06:58:24,047 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-22 06:58:24,049 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-22 06:58:24,060 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-22 06:58:24,061 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-22 06:58:24,062 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-22 06:58:24,063 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-22 06:58:24,064 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-22 06:58:24,066 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-22 06:58:24,067 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-22 06:58:24,067 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-22 06:58:24,068 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-22 06:58:24,068 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-22 06:58:24,069 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-22 06:58:24,070 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-22 06:58:24,071 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-22 06:58:24,072 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-22 06:58:24,073 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-22 06:58:24,075 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-22 06:58:24,077 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-22 06:58:24,078 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-22 06:58:24,079 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-22 06:58:24,081 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-22 06:58:24,081 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-22 06:58:24,081 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-22 06:58:24,082 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-22 06:58:24,083 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-22 06:58:24,083 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-22 06:58:24,084 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-22 06:58:24,084 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-22 06:58:24,085 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-22 06:58:24,086 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-22 06:58:24,087 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-22 06:58:24,087 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-22 06:58:24,087 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-22 06:58:24,088 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-22 06:58:24,088 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-22 06:58:24,089 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-22 06:58:24,089 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-22 06:58:24,090 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-06-22 06:58:24,104 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-22 06:58:24,105 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-22 06:58:24,106 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-22 06:58:24,106 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-22 06:58:24,106 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-22 06:58:24,106 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-22 06:58:24,107 INFO L133 SettingsManager]: * Use SBE=true [2020-06-22 06:58:24,107 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-22 06:58:24,107 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-22 06:58:24,107 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-22 06:58:24,107 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-22 06:58:24,108 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-22 06:58:24,108 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-22 06:58:24,108 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-22 06:58:24,108 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 06:58:24,108 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-22 06:58:24,108 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-22 06:58:24,109 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-22 06:58:24,109 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-22 06:58:24,109 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-22 06:58:24,109 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-22 06:58:24,109 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-22 06:58:24,110 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-22 06:58:24,110 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-22 06:58:24,110 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 06:58:24,110 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-22 06:58:24,110 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-22 06:58:24,110 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-22 06:58:24,111 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-22 06:58:24,136 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-22 06:58:24,149 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-22 06:58:24,152 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-22 06:58:24,154 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-22 06:58:24,154 INFO L276 PluginConnector]: CDTParser initialized [2020-06-22 06:58:24,155 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 06:58:24,234 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/e435af6fdfa94b2baaf07a1b5044a22c/FLAG5ebc3c214 [2020-06-22 06:58:24,586 INFO L307 CDTParser]: Found 1 translation units. [2020-06-22 06:58:24,587 INFO L161 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 06:58:24,594 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/e435af6fdfa94b2baaf07a1b5044a22c/FLAG5ebc3c214 [2020-06-22 06:58:25,013 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/e435af6fdfa94b2baaf07a1b5044a22c [2020-06-22 06:58:25,024 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-22 06:58:25,025 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-22 06:58:25,026 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-22 06:58:25,026 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-22 06:58:25,030 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-22 06:58:25,031 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 06:58:25" (1/1) ... [2020-06-22 06:58:25,035 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@142e1aa9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 06:58:25, skipping insertion in model container [2020-06-22 06:58:25,035 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 06:58:25" (1/1) ... [2020-06-22 06:58:25,042 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-22 06:58:25,059 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-22 06:58:25,212 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 06:58:25,216 INFO L191 MainTranslator]: Completed pre-run [2020-06-22 06:58:25,283 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 06:58:25,298 INFO L195 MainTranslator]: Completed translation [2020-06-22 06:58:25,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 06:58:25 WrapperNode [2020-06-22 06:58:25,299 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-22 06:58:25,300 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-22 06:58:25,300 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-22 06:58:25,300 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-22 06:58:25,309 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 06:58:25" (1/1) ... [2020-06-22 06:58:25,315 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 06:58:25" (1/1) ... [2020-06-22 06:58:25,334 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-22 06:58:25,335 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-22 06:58:25,335 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-22 06:58:25,335 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-22 06:58:25,345 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 06:58:25" (1/1) ... [2020-06-22 06:58:25,345 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 06:58:25" (1/1) ... [2020-06-22 06:58:25,345 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 06:58:25" (1/1) ... [2020-06-22 06:58:25,345 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 06:58:25" (1/1) ... [2020-06-22 06:58:25,347 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 06:58:25" (1/1) ... [2020-06-22 06:58:25,352 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 06:58:25" (1/1) ... [2020-06-22 06:58:25,353 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 06:58:25" (1/1) ... [2020-06-22 06:58:25,354 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-22 06:58:25,354 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-22 06:58:25,354 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-22 06:58:25,355 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-22 06:58:25,355 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 06:58:25" (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 06:58:25,423 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-22 06:58:25,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-22 06:58:25,552 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-22 06:58:25,553 INFO L286 CfgBuilder]: Removed 8 assue(true) statements. [2020-06-22 06:58:25,554 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 06:58:25 BoogieIcfgContainer [2020-06-22 06:58:25,554 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-22 06:58:25,554 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-22 06:58:25,555 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-22 06:58:25,557 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-22 06:58:25,557 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 06:58:25" (1/1) ... [2020-06-22 06:58:25,571 INFO L313 BlockEncoder]: Initial Icfg 9 locations, 12 edges [2020-06-22 06:58:25,572 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-22 06:58:25,573 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-22 06:58:25,574 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-22 06:58:25,574 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-22 06:58:25,576 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-22 06:58:25,577 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-22 06:58:25,577 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-22 06:58:25,591 INFO L185 BlockEncoder]: Using Use SBE [2020-06-22 06:58:25,598 INFO L200 BlockEncoder]: SBE split 0 edges [2020-06-22 06:58:25,603 INFO L70 emoveInfeasibleEdges]: Removed 2 edges and 0 locations because of local infeasibility [2020-06-22 06:58:25,604 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 06:58:25,620 INFO L100 BaseMinimizeStates]: Removed 10 edges and 5 locations by large block encoding [2020-06-22 06:58:25,623 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-06-22 06:58:25,624 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 06:58:25,624 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 06:58:25,624 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-22 06:58:25,625 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 06:58:25,625 INFO L313 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2020-06-22 06:58:25,625 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 06:58:25 BasicIcfg [2020-06-22 06:58:25,626 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-22 06:58:25,626 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-22 06:58:25,627 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-22 06:58:25,630 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-22 06:58:25,630 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.06 06:58:25" (1/4) ... [2020-06-22 06:58:25,631 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d8620c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 06:58:25, skipping insertion in model container [2020-06-22 06:58:25,631 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 06:58:25" (2/4) ... [2020-06-22 06:58:25,631 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d8620c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 06:58:25, skipping insertion in model container [2020-06-22 06:58:25,631 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 06:58:25" (3/4) ... [2020-06-22 06:58:25,632 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d8620c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 06:58:25, skipping insertion in model container [2020-06-22 06:58:25,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 06:58:25" (4/4) ... [2020-06-22 06:58:25,634 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 06:58:25,644 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-22 06:58:25,653 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-06-22 06:58:25,670 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-06-22 06:58:25,699 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 06:58:25,699 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-22 06:58:25,700 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-22 06:58:25,700 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 06:58:25,700 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 06:58:25,700 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 06:58:25,700 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-22 06:58:25,700 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 06:58:25,701 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-22 06:58:25,714 INFO L276 IsEmpty]: Start isEmpty. Operand 3 states. [2020-06-22 06:58:25,720 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-06-22 06:58:25,723 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. [2020-06-22 06:58:25,776 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-06-22 06:58:25,777 INFO L451 ceAbstractionStarter]: At program point L8-2(lines 8 11) the Hoare annotation is: true [2020-06-22 06:58:25,777 INFO L451 ceAbstractionStarter]: At program point L6-2(lines 6 13) the Hoare annotation is: true [2020-06-22 06:58:25,785 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 06:58:25 BasicIcfg [2020-06-22 06:58:25,785 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-22 06:58:25,786 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-22 06:58:25,786 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-22 06:58:25,789 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-22 06:58:25,790 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 06:58:25,790 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.06 06:58:25" (1/5) ... [2020-06-22 06:58:25,791 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6c885a16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 06:58:25, skipping insertion in model container [2020-06-22 06:58:25,791 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 06:58:25,791 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 06:58:25" (2/5) ... [2020-06-22 06:58:25,792 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6c885a16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 06:58:25, skipping insertion in model container [2020-06-22 06:58:25,792 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 06:58:25,792 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 06:58:25" (3/5) ... [2020-06-22 06:58:25,792 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6c885a16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 06:58:25, skipping insertion in model container [2020-06-22 06:58:25,793 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 06:58:25,793 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 06:58:25" (4/5) ... [2020-06-22 06:58:25,793 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6c885a16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 06:58:25, skipping insertion in model container [2020-06-22 06:58:25,793 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 06:58:25,793 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 06:58:25" (5/5) ... [2020-06-22 06:58:25,795 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 06:58:25,822 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 06:58:25,822 INFO L374 BuchiCegarLoop]: Interprodecural is true [2020-06-22 06:58:25,823 INFO L375 BuchiCegarLoop]: Hoare is true [2020-06-22 06:58:25,823 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 06:58:25,823 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 06:58:25,823 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 06:58:25,823 INFO L379 BuchiCegarLoop]: Difference is false [2020-06-22 06:58:25,824 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 06:58:25,824 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-06-22 06:58:25,827 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-06-22 06:58:25,843 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 06:58:25,844 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 06:58:25,844 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 06:58:25,849 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 06:58:25,849 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 06:58:25,849 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2020-06-22 06:58:25,849 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-06-22 06:58:25,850 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 06:58:25,850 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 06:58:25,850 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 06:58:25,850 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 06:58:25,850 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 06:58:25,855 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [34] ULTIMATE.startENTRY-->L6-2: Formula: (and (= |v_ULTIMATE.start_test_fun_#in~i_1| |v_ULTIMATE.start_main_#t~nondet0_1|) (= v_ULTIMATE.start_test_fun_~j_1 |v_ULTIMATE.start_test_fun_#in~j_1|) (= v_ULTIMATE.start_test_fun_~i_1 |v_ULTIMATE.start_test_fun_#in~i_1|) (= |v_ULTIMATE.start_test_fun_#in~j_1| |v_ULTIMATE.start_main_#t~nondet1_1|) (= v_ULTIMATE.start_test_fun_~c~0_1 0)) InVars {} OutVars{ULTIMATE.start_test_fun_~i=v_ULTIMATE.start_test_fun_~i_1, ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~ret2=|v_ULTIMATE.start_main_#t~ret2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_test_fun_#res=|v_ULTIMATE.start_test_fun_#res_1|, ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_1, ULTIMATE.start_test_fun_#in~j=|v_ULTIMATE.start_test_fun_#in~j_1|, ULTIMATE.start_test_fun_#in~i=|v_ULTIMATE.start_test_fun_#in~i_1|, ULTIMATE.start_test_fun_~j=v_ULTIMATE.start_test_fun_~j_1} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~i, ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~ret2, ULTIMATE.start_main_#res, ULTIMATE.start_test_fun_#res, ULTIMATE.start_test_fun_~c~0, ULTIMATE.start_test_fun_#in~j, ULTIMATE.start_test_fun_#in~i, ULTIMATE.start_test_fun_~j] 5#L6-2true [2020-06-22 06:58:25,856 INFO L796 eck$LassoCheckResult]: Loop: 5#L6-2true [44] L6-2-->L8-2: Formula: (and (= v_ULTIMATE.start_test_fun_~j_6 0) (<= 0 v_ULTIMATE.start_test_fun_~i_8)) InVars {ULTIMATE.start_test_fun_~i=v_ULTIMATE.start_test_fun_~i_8} OutVars{ULTIMATE.start_test_fun_~i=v_ULTIMATE.start_test_fun_~i_8, ULTIMATE.start_test_fun_~j=v_ULTIMATE.start_test_fun_~j_6} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~j] 4#L8-2true [48] L8-2-->L6-2: Formula: (and (= (+ v_ULTIMATE.start_test_fun_~i_11 (- 1)) v_ULTIMATE.start_test_fun_~i_10) (< v_ULTIMATE.start_test_fun_~i_11 (+ v_ULTIMATE.start_test_fun_~j_7 1))) InVars {ULTIMATE.start_test_fun_~i=v_ULTIMATE.start_test_fun_~i_11, ULTIMATE.start_test_fun_~j=v_ULTIMATE.start_test_fun_~j_7} OutVars{ULTIMATE.start_test_fun_~i=v_ULTIMATE.start_test_fun_~i_10, ULTIMATE.start_test_fun_~j=v_ULTIMATE.start_test_fun_~j_7} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~i] 5#L6-2true [2020-06-22 06:58:25,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 06:58:25,863 INFO L82 PathProgramCache]: Analyzing trace with hash 65, now seen corresponding path program 1 times [2020-06-22 06:58:25,865 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 06:58:25,866 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 06:58:25,886 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 06:58:25,886 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 06:58:25,886 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 06:58:25,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 06:58:25,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 06:58:25,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 06:58:25,935 INFO L82 PathProgramCache]: Analyzing trace with hash 2373, now seen corresponding path program 1 times [2020-06-22 06:58:25,936 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 06:58:25,936 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 06:58:25,937 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 06:58:25,937 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 06:58:25,937 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 06:58:25,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 06:58:25,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 06:58:25,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 06:58:25,949 INFO L82 PathProgramCache]: Analyzing trace with hash 63877, now seen corresponding path program 1 times [2020-06-22 06:58:25,949 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 06:58:25,949 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 06:58:25,950 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 06:58:25,950 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 06:58:25,951 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 06:58:25,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 06:58:25,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 06:58:26,007 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 06:58:26,008 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 06:58:26,009 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 06:58:26,009 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 06:58:26,009 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 06:58:26,009 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 06:58:26,009 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 06:58:26,009 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 06:58:26,010 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 06:58:26,010 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 06:58:26,010 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 06:58:26,028 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 06:58:26,100 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 06:58:26,101 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 06:58:26,108 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 06:58:26,108 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 06:58:26,141 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 06:58:26,141 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 06:58:26,175 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 06:58:26,178 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 06:58:26,178 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 06:58:26,178 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 06:58:26,178 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 06:58:26,179 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 06:58:26,179 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 06:58:26,179 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 06:58:26,179 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 06:58:26,179 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 06:58:26,179 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 06:58:26,179 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 06:58:26,181 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 06:58:26,250 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 06:58:26,256 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 06:58:26,258 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 06:58:26,259 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 06:58:26,260 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 06:58:26,260 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 06:58:26,260 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 06:58:26,261 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 06:58:26,263 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 06:58:26,263 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 06:58:26,272 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 06:58:26,280 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 06:58:26,281 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2020-06-22 06:58:26,283 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 06:58:26,283 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 06:58:26,284 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 06:58:26,284 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_test_fun_~i) = 2*ULTIMATE.start_test_fun_~i + 1 Supporting invariants [] [2020-06-22 06:58:26,286 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 06:58:26,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 06:58:26,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 06:58:26,334 INFO L256 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 06:58:26,335 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 06:58:26,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 06:58:26,346 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 06:58:26,346 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 06:58:26,360 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 06:58:26,384 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-06-22 06:58:26,389 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 06:58:26,391 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 3 states. Second operand 3 states. [2020-06-22 06:58:26,419 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 3 states.. Second operand 3 states. Result 6 states and 9 transitions. Complement of second has 4 states. [2020-06-22 06:58:26,419 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 06:58:26,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-06-22 06:58:26,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2020-06-22 06:58:26,424 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 1 letters. Loop has 2 letters. [2020-06-22 06:58:26,425 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 06:58:26,425 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 3 letters. Loop has 2 letters. [2020-06-22 06:58:26,425 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 06:58:26,425 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 1 letters. Loop has 4 letters. [2020-06-22 06:58:26,426 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 06:58:26,431 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 6 states and 9 transitions. [2020-06-22 06:58:26,432 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-06-22 06:58:26,436 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 6 states to 6 states and 9 transitions. [2020-06-22 06:58:26,437 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2020-06-22 06:58:26,437 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2020-06-22 06:58:26,438 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 9 transitions. [2020-06-22 06:58:26,438 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 06:58:26,438 INFO L706 BuchiCegarLoop]: Abstraction has 6 states and 9 transitions. [2020-06-22 06:58:26,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 9 transitions. [2020-06-22 06:58:26,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 5. [2020-06-22 06:58:26,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-06-22 06:58:26,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 8 transitions. [2020-06-22 06:58:26,466 INFO L729 BuchiCegarLoop]: Abstraction has 5 states and 8 transitions. [2020-06-22 06:58:26,466 INFO L609 BuchiCegarLoop]: Abstraction has 5 states and 8 transitions. [2020-06-22 06:58:26,466 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2020-06-22 06:58:26,466 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 8 transitions. [2020-06-22 06:58:26,467 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-06-22 06:58:26,467 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 06:58:26,467 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 06:58:26,467 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 06:58:26,467 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-06-22 06:58:26,468 INFO L794 eck$LassoCheckResult]: Stem: 42#ULTIMATE.startENTRY [34] ULTIMATE.startENTRY-->L6-2: Formula: (and (= |v_ULTIMATE.start_test_fun_#in~i_1| |v_ULTIMATE.start_main_#t~nondet0_1|) (= v_ULTIMATE.start_test_fun_~j_1 |v_ULTIMATE.start_test_fun_#in~j_1|) (= v_ULTIMATE.start_test_fun_~i_1 |v_ULTIMATE.start_test_fun_#in~i_1|) (= |v_ULTIMATE.start_test_fun_#in~j_1| |v_ULTIMATE.start_main_#t~nondet1_1|) (= v_ULTIMATE.start_test_fun_~c~0_1 0)) InVars {} OutVars{ULTIMATE.start_test_fun_~i=v_ULTIMATE.start_test_fun_~i_1, ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~ret2=|v_ULTIMATE.start_main_#t~ret2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_test_fun_#res=|v_ULTIMATE.start_test_fun_#res_1|, ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_1, ULTIMATE.start_test_fun_#in~j=|v_ULTIMATE.start_test_fun_#in~j_1|, ULTIMATE.start_test_fun_#in~i=|v_ULTIMATE.start_test_fun_#in~i_1|, ULTIMATE.start_test_fun_~j=v_ULTIMATE.start_test_fun_~j_1} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~i, ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~ret2, ULTIMATE.start_main_#res, ULTIMATE.start_test_fun_#res, ULTIMATE.start_test_fun_~c~0, ULTIMATE.start_test_fun_#in~j, ULTIMATE.start_test_fun_#in~i, ULTIMATE.start_test_fun_~j] 43#L6-2 [44] L6-2-->L8-2: Formula: (and (= v_ULTIMATE.start_test_fun_~j_6 0) (<= 0 v_ULTIMATE.start_test_fun_~i_8)) InVars {ULTIMATE.start_test_fun_~i=v_ULTIMATE.start_test_fun_~i_8} OutVars{ULTIMATE.start_test_fun_~i=v_ULTIMATE.start_test_fun_~i_8, ULTIMATE.start_test_fun_~j=v_ULTIMATE.start_test_fun_~j_6} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~j] 44#L8-2 [2020-06-22 06:58:26,468 INFO L796 eck$LassoCheckResult]: Loop: 44#L8-2 [37] L8-2-->L8-2: Formula: (let ((.cse0 (+ v_ULTIMATE.start_test_fun_~j_5 1))) (and (= v_ULTIMATE.start_test_fun_~j_4 .cse0) (= v_ULTIMATE.start_test_fun_~c~0_3 (+ v_ULTIMATE.start_test_fun_~c~0_4 1)) (<= .cse0 v_ULTIMATE.start_test_fun_~i_4))) InVars {ULTIMATE.start_test_fun_~i=v_ULTIMATE.start_test_fun_~i_4, ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_4, ULTIMATE.start_test_fun_~j=v_ULTIMATE.start_test_fun_~j_5} OutVars{ULTIMATE.start_test_fun_~i=v_ULTIMATE.start_test_fun_~i_4, ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_3, ULTIMATE.start_test_fun_~j=v_ULTIMATE.start_test_fun_~j_4} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~c~0, ULTIMATE.start_test_fun_~j] 44#L8-2 [2020-06-22 06:58:26,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 06:58:26,468 INFO L82 PathProgramCache]: Analyzing trace with hash 2059, now seen corresponding path program 1 times [2020-06-22 06:58:26,469 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 06:58:26,469 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 06:58:26,470 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 06:58:26,470 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 06:58:26,470 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 06:58:26,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 06:58:26,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 06:58:26,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 06:58:26,477 INFO L82 PathProgramCache]: Analyzing trace with hash 68, now seen corresponding path program 1 times [2020-06-22 06:58:26,477 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 06:58:26,477 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 06:58:26,478 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 06:58:26,478 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 06:58:26,478 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 06:58:26,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 06:58:26,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 06:58:26,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 06:58:26,483 INFO L82 PathProgramCache]: Analyzing trace with hash 63866, now seen corresponding path program 1 times [2020-06-22 06:58:26,483 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 06:58:26,483 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 06:58:26,484 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 06:58:26,484 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 06:58:26,484 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 06:58:26,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 06:58:26,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 06:58:26,509 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 06:58:26,509 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 06:58:26,509 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 06:58:26,509 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 06:58:26,509 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 06:58:26,510 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 06:58:26,510 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 06:58:26,510 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 06:58:26,510 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 06:58:26,510 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 06:58:26,510 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 06:58:26,511 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 06:58:26,515 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 06:58:26,549 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 06:58:26,549 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 06:58:26,553 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 06:58:26,553 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 06:58:26,590 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 06:58:26,590 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 06:58:26,609 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 06:58:26,610 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_test_fun_~c~0=0} Honda state: {ULTIMATE.start_test_fun_~c~0=0} Generalized eigenvectors: [{ULTIMATE.start_test_fun_~c~0=-4}, {ULTIMATE.start_test_fun_~c~0=7}, {ULTIMATE.start_test_fun_~c~0=-2}] Lambdas: [1, 1, 1] Nus: [0, 0] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 06:58:26,637 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 06:58:26,637 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 06:58:26,671 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 06:58:26,671 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 06:58:26,846 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 06:58:26,848 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 06:58:26,848 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 06:58:26,849 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 06:58:26,849 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 06:58:26,849 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 06:58:26,849 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 06:58:26,849 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 06:58:26,849 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 06:58:26,849 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 06:58:26,849 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 06:58:26,849 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 06:58:26,851 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 06:58:26,854 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 06:58:26,891 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 06:58:26,892 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 06:58:26,892 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 06:58:26,893 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 06:58:26,893 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 06:58:26,893 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 06:58:26,893 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 06:58:26,893 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 06:58:26,894 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 06:58:26,894 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 06:58:26,899 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 06:58:26,899 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 06:58:26,900 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 06:58:26,900 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 06:58:26,900 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 06:58:26,900 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 06:58:26,900 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 06:58:26,901 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 06:58:26,901 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 06:58:26,907 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 06:58:26,913 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-06-22 06:58:26,913 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 06:58:26,913 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 06:58:26,914 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 06:58:26,914 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 06:58:26,914 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_test_fun_~i, ULTIMATE.start_test_fun_~j) = 1*ULTIMATE.start_test_fun_~i - 1*ULTIMATE.start_test_fun_~j Supporting invariants [] [2020-06-22 06:58:26,914 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 06:58:26,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 06:58:26,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 06:58:26,948 INFO L256 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 06:58:26,949 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 06:58:26,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 06:58:26,955 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 06:58:26,955 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 06:58:26,956 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 06:58:26,956 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization [2020-06-22 06:58:26,956 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 1 loop predicates [2020-06-22 06:58:26,957 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 5 states and 8 transitions. cyclomatic complexity: 5 Second operand 2 states. [2020-06-22 06:58:26,969 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 5 states and 8 transitions. cyclomatic complexity: 5. Second operand 2 states. Result 7 states and 10 transitions. Complement of second has 4 states. [2020-06-22 06:58:26,969 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 06:58:26,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-06-22 06:58:26,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2020-06-22 06:58:26,971 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 2 letters. Loop has 1 letters. [2020-06-22 06:58:26,971 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 06:58:26,971 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 3 letters. Loop has 1 letters. [2020-06-22 06:58:26,971 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 06:58:26,972 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 2 letters. Loop has 2 letters. [2020-06-22 06:58:26,972 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 06:58:26,973 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7 states and 10 transitions. [2020-06-22 06:58:26,973 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 06:58:26,974 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7 states to 0 states and 0 transitions. [2020-06-22 06:58:26,974 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-06-22 06:58:26,974 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-06-22 06:58:26,974 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-06-22 06:58:26,974 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 06:58:26,974 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 06:58:26,974 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 06:58:26,974 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 06:58:26,975 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2020-06-22 06:58:26,975 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-06-22 06:58:26,975 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 06:58:26,975 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-06-22 06:58:26,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 06:58:26 BasicIcfg [2020-06-22 06:58:26,981 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-22 06:58:26,981 INFO L168 Benchmark]: Toolchain (without parser) took 1957.12 ms. Allocated memory was 649.6 MB in the beginning and 679.5 MB in the end (delta: 29.9 MB). Free memory was 567.4 MB in the beginning and 507.6 MB in the end (delta: 59.8 MB). Peak memory consumption was 89.7 MB. Max. memory is 50.3 GB. [2020-06-22 06:58:26,983 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 649.6 MB. Free memory is still 585.8 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 06:58:26,984 INFO L168 Benchmark]: CACSL2BoogieTranslator took 272.72 ms. Allocated memory was 649.6 MB in the beginning and 679.5 MB in the end (delta: 29.9 MB). Free memory was 566.3 MB in the beginning and 646.3 MB in the end (delta: -80.0 MB). Peak memory consumption was 30.4 MB. Max. memory is 50.3 GB. [2020-06-22 06:58:26,985 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.14 ms. Allocated memory is still 679.5 MB. Free memory was 646.3 MB in the beginning and 645.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-06-22 06:58:26,985 INFO L168 Benchmark]: Boogie Preprocessor took 19.14 ms. Allocated memory is still 679.5 MB. Free memory was 645.2 MB in the beginning and 644.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-06-22 06:58:26,986 INFO L168 Benchmark]: RCFGBuilder took 199.84 ms. Allocated memory is still 679.5 MB. Free memory was 644.1 MB in the beginning and 628.8 MB in the end (delta: 15.3 MB). Peak memory consumption was 15.3 MB. Max. memory is 50.3 GB. [2020-06-22 06:58:26,987 INFO L168 Benchmark]: BlockEncodingV2 took 71.13 ms. Allocated memory is still 679.5 MB. Free memory was 628.8 MB in the beginning and 622.1 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 50.3 GB. [2020-06-22 06:58:26,987 INFO L168 Benchmark]: TraceAbstraction took 158.97 ms. Allocated memory is still 679.5 MB. Free memory was 621.0 MB in the beginning and 612.3 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.7 MB. Max. memory is 50.3 GB. [2020-06-22 06:58:26,988 INFO L168 Benchmark]: BuchiAutomizer took 1195.11 ms. Allocated memory is still 679.5 MB. Free memory was 612.3 MB in the beginning and 507.6 MB in the end (delta: 104.8 MB). Peak memory consumption was 104.8 MB. Max. memory is 50.3 GB. [2020-06-22 06:58:26,992 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 9 locations, 12 edges - StatisticsResult: Encoded RCFG 3 locations, 4 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 649.6 MB. Free memory is still 585.8 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 272.72 ms. Allocated memory was 649.6 MB in the beginning and 679.5 MB in the end (delta: 29.9 MB). Free memory was 566.3 MB in the beginning and 646.3 MB in the end (delta: -80.0 MB). Peak memory consumption was 30.4 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 35.14 ms. Allocated memory is still 679.5 MB. Free memory was 646.3 MB in the beginning and 645.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 19.14 ms. Allocated memory is still 679.5 MB. Free memory was 645.2 MB in the beginning and 644.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * RCFGBuilder took 199.84 ms. Allocated memory is still 679.5 MB. Free memory was 644.1 MB in the beginning and 628.8 MB in the end (delta: 15.3 MB). Peak memory consumption was 15.3 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 71.13 ms. Allocated memory is still 679.5 MB. Free memory was 628.8 MB in the beginning and 622.1 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 50.3 GB. * TraceAbstraction took 158.97 ms. Allocated memory is still 679.5 MB. Free memory was 621.0 MB in the beginning and 612.3 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.7 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 1195.11 ms. Allocated memory is still 679.5 MB. Free memory was 612.3 MB in the beginning and 507.6 MB in the end (delta: 104.8 MB). Peak memory consumption was 104.8 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - InvariantResult [Line: 8]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6]: 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, 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 (0 trivial, 0 deterministic, 2 nondeterministic). One nondeterministic module has affine ranking function 2 * i + 1 and consists of 3 locations. One nondeterministic module has affine ranking function i + -1 * j and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.1s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 0.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 5 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 8 SDtfs, 11 SDslu, 0 SDs, 0 SdLazy, 13 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital17 mio100 ax100 hnf100 lsp85 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq152 hnf93 smp94 dnf100 smp100 tf110 neg100 sie103 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 26ms VariablesStem: 0 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-06-22 06:58:21.758 ----------------------------------------------- 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 06:58:27.229 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check