YES Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-22 11:13:23,183 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-22 11:13:23,185 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-22 11:13:23,197 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-22 11:13:23,197 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-22 11:13:23,198 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-22 11:13:23,199 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-22 11:13:23,200 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-22 11:13:23,202 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-22 11:13:23,203 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-22 11:13:23,204 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-22 11:13:23,204 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-22 11:13:23,205 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-22 11:13:23,206 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-22 11:13:23,207 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-22 11:13:23,207 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-22 11:13:23,208 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-22 11:13:23,210 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-22 11:13:23,211 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-22 11:13:23,213 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-22 11:13:23,214 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-22 11:13:23,215 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-22 11:13:23,217 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-22 11:13:23,217 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-22 11:13:23,218 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-22 11:13:23,218 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-22 11:13:23,219 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-22 11:13:23,220 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-22 11:13:23,220 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-22 11:13:23,220 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-22 11:13:23,221 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-22 11:13:23,222 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-22 11:13:23,223 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-22 11:13:23,223 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-22 11:13:23,224 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-22 11:13:23,224 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-22 11:13:23,224 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-22 11:13:23,225 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-22 11:13:23,225 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-22 11:13:23,226 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-06-22 11:13:23,240 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-22 11:13:23,240 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-22 11:13:23,241 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-22 11:13:23,241 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-22 11:13:23,242 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-22 11:13:23,242 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-22 11:13:23,242 INFO L133 SettingsManager]: * Use SBE=true [2020-06-22 11:13:23,242 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-22 11:13:23,242 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-22 11:13:23,243 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-22 11:13:23,243 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-22 11:13:23,243 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-22 11:13:23,243 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-22 11:13:23,243 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-22 11:13:23,243 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 11:13:23,244 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-22 11:13:23,244 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-22 11:13:23,244 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-22 11:13:23,244 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-22 11:13:23,244 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-22 11:13:23,245 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-22 11:13:23,245 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-22 11:13:23,245 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-22 11:13:23,245 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-22 11:13:23,245 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 11:13:23,246 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-22 11:13:23,246 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-22 11:13:23,246 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-22 11:13:23,246 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-22 11:13:23,271 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-22 11:13:23,283 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-22 11:13:23,287 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-22 11:13:23,288 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-22 11:13:23,289 INFO L276 PluginConnector]: CDTParser initialized [2020-06-22 11:13:23,289 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-06-22 11:13:23,357 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/84802af103b54ebcad9533b41cdeddf0/FLAG05cd3699b [2020-06-22 11:13:23,684 INFO L307 CDTParser]: Found 1 translation units. [2020-06-22 11:13:23,684 INFO L161 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-06-22 11:13:23,691 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/84802af103b54ebcad9533b41cdeddf0/FLAG05cd3699b [2020-06-22 11:13:24,109 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/84802af103b54ebcad9533b41cdeddf0 [2020-06-22 11:13:24,121 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-22 11:13:24,123 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-22 11:13:24,124 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-22 11:13:24,124 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-22 11:13:24,127 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-22 11:13:24,128 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 11:13:24" (1/1) ... [2020-06-22 11:13:24,131 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b02bb50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:13:24, skipping insertion in model container [2020-06-22 11:13:24,132 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 11:13:24" (1/1) ... [2020-06-22 11:13:24,139 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-22 11:13:24,156 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-22 11:13:24,314 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 11:13:24,319 INFO L191 MainTranslator]: Completed pre-run [2020-06-22 11:13:24,394 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 11:13:24,409 INFO L195 MainTranslator]: Completed translation [2020-06-22 11:13:24,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:13:24 WrapperNode [2020-06-22 11:13:24,410 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-22 11:13:24,410 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-22 11:13:24,411 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-22 11:13:24,411 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-22 11:13:24,421 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:13:24" (1/1) ... [2020-06-22 11:13:24,426 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:13:24" (1/1) ... [2020-06-22 11:13:24,446 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-22 11:13:24,446 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-22 11:13:24,446 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-22 11:13:24,447 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-22 11:13:24,456 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:13:24" (1/1) ... [2020-06-22 11:13:24,457 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:13:24" (1/1) ... [2020-06-22 11:13:24,457 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:13:24" (1/1) ... [2020-06-22 11:13:24,457 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:13:24" (1/1) ... [2020-06-22 11:13:24,459 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:13:24" (1/1) ... [2020-06-22 11:13:24,464 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:13:24" (1/1) ... [2020-06-22 11:13:24,465 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:13:24" (1/1) ... [2020-06-22 11:13:24,466 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-22 11:13:24,466 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-22 11:13:24,466 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-22 11:13:24,467 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-22 11:13:24,468 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:13:24" (1/1) ... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 11:13:24,549 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-22 11:13:24,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-22 11:13:24,678 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-22 11:13:24,678 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. [2020-06-22 11:13:24,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:13:24 BoogieIcfgContainer [2020-06-22 11:13:24,679 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-22 11:13:24,680 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-22 11:13:24,680 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-22 11:13:24,682 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-22 11:13:24,683 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:13:24" (1/1) ... [2020-06-22 11:13:24,697 INFO L313 BlockEncoder]: Initial Icfg 7 locations, 9 edges [2020-06-22 11:13:24,698 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-22 11:13:24,699 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-22 11:13:24,700 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-22 11:13:24,700 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-22 11:13:24,702 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-22 11:13:24,703 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-22 11:13:24,703 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-22 11:13:24,718 INFO L185 BlockEncoder]: Using Use SBE [2020-06-22 11:13:24,732 INFO L200 BlockEncoder]: SBE split 1 edges [2020-06-22 11:13:24,736 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-06-22 11:13:24,738 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 11:13:24,750 INFO L100 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2020-06-22 11:13:24,752 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-06-22 11:13:24,754 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 11:13:24,754 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 11:13:24,754 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-22 11:13:24,754 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 11:13:24,755 INFO L313 BlockEncoder]: Encoded RCFG 3 locations, 5 edges [2020-06-22 11:13:24,755 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 11:13:24 BasicIcfg [2020-06-22 11:13:24,755 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-22 11:13:24,756 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-22 11:13:24,756 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-22 11:13:24,759 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-22 11:13:24,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.06 11:13:24" (1/4) ... [2020-06-22 11:13:24,760 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1abd10e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 11:13:24, skipping insertion in model container [2020-06-22 11:13:24,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:13:24" (2/4) ... [2020-06-22 11:13:24,761 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1abd10e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 11:13:24, skipping insertion in model container [2020-06-22 11:13:24,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:13:24" (3/4) ... [2020-06-22 11:13:24,761 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1abd10e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 11:13:24, skipping insertion in model container [2020-06-22 11:13:24,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 11:13:24" (4/4) ... [2020-06-22 11:13:24,763 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 11:13:24,773 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-22 11:13:24,780 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-06-22 11:13:24,796 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-06-22 11:13:24,825 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 11:13:24,826 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-22 11:13:24,826 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-22 11:13:24,826 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 11:13:24,827 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 11:13:24,827 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 11:13:24,827 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-22 11:13:24,827 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 11:13:24,827 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-22 11:13:24,841 INFO L276 IsEmpty]: Start isEmpty. Operand 3 states. [2020-06-22 11:13:24,846 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-06-22 11:13:24,849 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. [2020-06-22 11:13:24,898 INFO L451 ceAbstractionStarter]: At program point L18-2(lines 17 23) the Hoare annotation is: true [2020-06-22 11:13:24,898 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-06-22 11:13:24,899 INFO L448 ceAbstractionStarter]: For program point L18(lines 18 22) no Hoare annotation was computed. [2020-06-22 11:13:24,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 11:13:24 BasicIcfg [2020-06-22 11:13:24,907 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-22 11:13:24,908 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-22 11:13:24,908 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-22 11:13:24,911 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-22 11:13:24,912 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 11:13:24,912 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.06 11:13:24" (1/5) ... [2020-06-22 11:13:24,913 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@27075606 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 11:13:24, skipping insertion in model container [2020-06-22 11:13:24,913 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 11:13:24,913 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:13:24" (2/5) ... [2020-06-22 11:13:24,913 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@27075606 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 11:13:24, skipping insertion in model container [2020-06-22 11:13:24,913 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 11:13:24,914 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:13:24" (3/5) ... [2020-06-22 11:13:24,914 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@27075606 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 11:13:24, skipping insertion in model container [2020-06-22 11:13:24,914 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 11:13:24,914 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 11:13:24" (4/5) ... [2020-06-22 11:13:24,915 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@27075606 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 11:13:24, skipping insertion in model container [2020-06-22 11:13:24,915 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 11:13:24,915 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 11:13:24" (5/5) ... [2020-06-22 11:13:24,916 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 11:13:24,944 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 11:13:24,944 INFO L374 BuchiCegarLoop]: Interprodecural is true [2020-06-22 11:13:24,944 INFO L375 BuchiCegarLoop]: Hoare is true [2020-06-22 11:13:24,944 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 11:13:24,945 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 11:13:24,945 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 11:13:24,945 INFO L379 BuchiCegarLoop]: Difference is false [2020-06-22 11:13:24,945 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 11:13:24,945 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-06-22 11:13:24,949 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-06-22 11:13:24,966 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 11:13:24,967 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 11:13:24,984 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 11:13:24,989 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 11:13:24,989 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 11:13:24,990 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2020-06-22 11:13:24,990 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-06-22 11:13:24,990 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 11:13:24,990 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 11:13:24,991 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 11:13:24,991 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 11:13:24,991 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 11:13:24,996 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [25] ULTIMATE.startENTRY-->L18-2: Formula: (and (= v_ULTIMATE.start_main_~K~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~K~0=v_ULTIMATE.start_main_~K~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~K~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~x~0] 4#L18-2true [2020-06-22 11:13:24,996 INFO L796 eck$LassoCheckResult]: Loop: 4#L18-2true [35] L18-2-->L18: Formula: (< v_ULTIMATE.start_main_~K~0_7 v_ULTIMATE.start_main_~x~0_7) InVars {ULTIMATE.start_main_~K~0=v_ULTIMATE.start_main_~K~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~K~0=v_ULTIMATE.start_main_~K~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 5#L18true [34] L18-->L18-2: Formula: (and (>= v_ULTIMATE.start_main_~K~0_9 v_ULTIMATE.start_main_~x~0_11) (= v_ULTIMATE.start_main_~x~0_10 (+ v_ULTIMATE.start_main_~x~0_11 1))) InVars {ULTIMATE.start_main_~K~0=v_ULTIMATE.start_main_~K~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} OutVars{ULTIMATE.start_main_~K~0=v_ULTIMATE.start_main_~K~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 4#L18-2true [2020-06-22 11:13:25,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 11:13:25,002 INFO L82 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 1 times [2020-06-22 11:13:25,004 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 11:13:25,005 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 11:13:25,033 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:13:25,033 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 11:13:25,033 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:13:25,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:13:25,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:13:25,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 11:13:25,077 INFO L82 PathProgramCache]: Analyzing trace with hash 2080, now seen corresponding path program 1 times [2020-06-22 11:13:25,077 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 11:13:25,077 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 11:13:25,079 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:13:25,079 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 11:13:25,079 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:13:25,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 11:13:25,123 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 11:13:25,125 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 11:13:25,125 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-06-22 11:13:25,130 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-06-22 11:13:25,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-06-22 11:13:25,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-06-22 11:13:25,146 INFO L87 Difference]: Start difference. First operand 3 states. Second operand 3 states. [2020-06-22 11:13:25,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 11:13:25,170 INFO L93 Difference]: Finished difference Result 4 states and 6 transitions. [2020-06-22 11:13:25,171 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-06-22 11:13:25,175 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 4 states and 6 transitions. [2020-06-22 11:13:25,175 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 11:13:25,181 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 4 states to 4 states and 6 transitions. [2020-06-22 11:13:25,182 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2020-06-22 11:13:25,182 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2020-06-22 11:13:25,183 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 6 transitions. [2020-06-22 11:13:25,183 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 11:13:25,183 INFO L706 BuchiCegarLoop]: Abstraction has 4 states and 6 transitions. [2020-06-22 11:13:25,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4 states and 6 transitions. [2020-06-22 11:13:25,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4 to 4. [2020-06-22 11:13:25,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-06-22 11:13:25,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions. [2020-06-22 11:13:25,213 INFO L729 BuchiCegarLoop]: Abstraction has 4 states and 6 transitions. [2020-06-22 11:13:25,213 INFO L609 BuchiCegarLoop]: Abstraction has 4 states and 6 transitions. [2020-06-22 11:13:25,213 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2020-06-22 11:13:25,213 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states and 6 transitions. [2020-06-22 11:13:25,214 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 11:13:25,214 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 11:13:25,214 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 11:13:25,214 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 11:13:25,214 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 11:13:25,215 INFO L794 eck$LassoCheckResult]: Stem: 16#ULTIMATE.startENTRY [25] ULTIMATE.startENTRY-->L18-2: Formula: (and (= v_ULTIMATE.start_main_~K~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~K~0=v_ULTIMATE.start_main_~K~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~K~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~x~0] 17#L18-2 [2020-06-22 11:13:25,215 INFO L796 eck$LassoCheckResult]: Loop: 17#L18-2 [35] L18-2-->L18: Formula: (< v_ULTIMATE.start_main_~K~0_7 v_ULTIMATE.start_main_~x~0_7) InVars {ULTIMATE.start_main_~K~0=v_ULTIMATE.start_main_~K~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~K~0=v_ULTIMATE.start_main_~K~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 18#L18 [29] L18-->L18-2: Formula: (and (< v_ULTIMATE.start_main_~K~0_8 v_ULTIMATE.start_main_~x~0_9) (= v_ULTIMATE.start_main_~x~0_8 (+ v_ULTIMATE.start_main_~x~0_9 (- 1)))) InVars {ULTIMATE.start_main_~K~0=v_ULTIMATE.start_main_~K~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} OutVars{ULTIMATE.start_main_~K~0=v_ULTIMATE.start_main_~K~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 17#L18-2 [2020-06-22 11:13:25,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 11:13:25,215 INFO L82 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 2 times [2020-06-22 11:13:25,216 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 11:13:25,216 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 11:13:25,217 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:13:25,217 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 11:13:25,218 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:13:25,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:13:25,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:13:25,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 11:13:25,222 INFO L82 PathProgramCache]: Analyzing trace with hash 2075, now seen corresponding path program 1 times [2020-06-22 11:13:25,222 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 11:13:25,223 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 11:13:25,224 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:13:25,224 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 11:13:25,224 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:13:25,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:13:25,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:13:25,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 11:13:25,230 INFO L82 PathProgramCache]: Analyzing trace with hash 54930, now seen corresponding path program 1 times [2020-06-22 11:13:25,230 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 11:13:25,230 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 11:13:25,232 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:13:25,232 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 11:13:25,232 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:13:25,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:13:25,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:13:25,266 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 11:13:25,267 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 11:13:25,268 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 11:13:25,268 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 11:13:25,268 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 11:13:25,268 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 11:13:25,268 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 11:13:25,268 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 11:13:25,269 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 11:13:25,269 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 11:13:25,269 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 11:13:25,287 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 11:13:25,296 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 11:13:25,300 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 11:13:25,360 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 11:13:25,361 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 11:13:25,367 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 11:13:25,368 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 11:13:25,401 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 11:13:25,401 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 11:13:25,407 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 11:13:25,407 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 11:13:25,435 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 11:13:25,435 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 11:13:25,440 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 11:13:25,440 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 11:13:25,472 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 11:13:25,473 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 11:13:25,727 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 11:13:25,729 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 11:13:25,730 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 11:13:25,730 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 11:13:25,730 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 11:13:25,730 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 11:13:25,730 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 11:13:25,730 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 11:13:25,730 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 11:13:25,730 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 11:13:25,731 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 11:13:25,731 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 11:13:25,733 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 11:13:25,736 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 11:13:25,740 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 11:13:25,803 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 11:13:25,808 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 11:13:25,810 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 11:13:25,812 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 11:13:25,812 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 11:13:25,812 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 11:13:25,812 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 11:13:25,817 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 11:13:25,817 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 11:13:25,826 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 11:13:25,826 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 11:13:25,827 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 11:13:25,827 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 11:13:25,827 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 11:13:25,827 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 11:13:25,830 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 11:13:25,830 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 11:13:25,838 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 11:13:25,839 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 11:13:25,840 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 11:13:25,840 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 11:13:25,840 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 11:13:25,841 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 11:13:25,841 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 11:13:25,842 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 11:13:25,842 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 11:13:25,848 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 11:13:25,856 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-06-22 11:13:25,857 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 11:13:25,859 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 11:13:25,859 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 11:13:25,860 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 11:13:25,860 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~K~0) = 1*ULTIMATE.start_main_~x~0 - 1*ULTIMATE.start_main_~K~0 Supporting invariants [] [2020-06-22 11:13:25,862 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 11:13:25,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 11:13:25,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 11:13:25,917 INFO L256 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 11:13:25,919 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 11:13:25,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 11:13:25,928 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 11:13:25,929 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 11:13:25,941 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 11:13:25,962 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-06-22 11:13:25,965 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 11:13:25,966 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 4 states and 6 transitions. cyclomatic complexity: 3 Second operand 3 states. [2020-06-22 11:13:25,999 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 4 states and 6 transitions. cyclomatic complexity: 3. Second operand 3 states. Result 10 states and 17 transitions. Complement of second has 6 states. [2020-06-22 11:13:26,000 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-06-22 11:13:26,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-06-22 11:13:26,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2020-06-22 11:13:26,003 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 1 letters. Loop has 2 letters. [2020-06-22 11:13:26,004 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 11:13:26,004 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 3 letters. Loop has 2 letters. [2020-06-22 11:13:26,005 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 11:13:26,005 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 1 letters. Loop has 4 letters. [2020-06-22 11:13:26,005 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 11:13:26,009 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 17 transitions. [2020-06-22 11:13:26,010 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 11:13:26,011 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 9 states and 15 transitions. [2020-06-22 11:13:26,011 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2020-06-22 11:13:26,011 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2020-06-22 11:13:26,011 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 15 transitions. [2020-06-22 11:13:26,011 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 11:13:26,011 INFO L706 BuchiCegarLoop]: Abstraction has 9 states and 15 transitions. [2020-06-22 11:13:26,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 15 transitions. [2020-06-22 11:13:26,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2020-06-22 11:13:26,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-06-22 11:13:26,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 14 transitions. [2020-06-22 11:13:26,013 INFO L729 BuchiCegarLoop]: Abstraction has 8 states and 14 transitions. [2020-06-22 11:13:26,013 INFO L609 BuchiCegarLoop]: Abstraction has 8 states and 14 transitions. [2020-06-22 11:13:26,014 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2020-06-22 11:13:26,014 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 14 transitions. [2020-06-22 11:13:26,014 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 11:13:26,014 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 11:13:26,014 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 11:13:26,015 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-06-22 11:13:26,015 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 11:13:26,015 INFO L794 eck$LassoCheckResult]: Stem: 69#ULTIMATE.startENTRY [25] ULTIMATE.startENTRY-->L18-2: Formula: (and (= v_ULTIMATE.start_main_~K~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~K~0=v_ULTIMATE.start_main_~K~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~K~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~x~0] 70#L18-2 [36] L18-2-->L18: Formula: (> v_ULTIMATE.start_main_~K~0_7 v_ULTIMATE.start_main_~x~0_7) InVars {ULTIMATE.start_main_~K~0=v_ULTIMATE.start_main_~K~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~K~0=v_ULTIMATE.start_main_~K~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 68#L18 [34] L18-->L18-2: Formula: (and (>= v_ULTIMATE.start_main_~K~0_9 v_ULTIMATE.start_main_~x~0_11) (= v_ULTIMATE.start_main_~x~0_10 (+ v_ULTIMATE.start_main_~x~0_11 1))) InVars {ULTIMATE.start_main_~K~0=v_ULTIMATE.start_main_~K~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} OutVars{ULTIMATE.start_main_~K~0=v_ULTIMATE.start_main_~K~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 63#L18-2 [2020-06-22 11:13:26,016 INFO L796 eck$LassoCheckResult]: Loop: 63#L18-2 [35] L18-2-->L18: Formula: (< v_ULTIMATE.start_main_~K~0_7 v_ULTIMATE.start_main_~x~0_7) InVars {ULTIMATE.start_main_~K~0=v_ULTIMATE.start_main_~K~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~K~0=v_ULTIMATE.start_main_~K~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 64#L18 [29] L18-->L18-2: Formula: (and (< v_ULTIMATE.start_main_~K~0_8 v_ULTIMATE.start_main_~x~0_9) (= v_ULTIMATE.start_main_~x~0_8 (+ v_ULTIMATE.start_main_~x~0_9 (- 1)))) InVars {ULTIMATE.start_main_~K~0=v_ULTIMATE.start_main_~K~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} OutVars{ULTIMATE.start_main_~K~0=v_ULTIMATE.start_main_~K~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 63#L18-2 [2020-06-22 11:13:26,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 11:13:26,016 INFO L82 PathProgramCache]: Analyzing trace with hash 54966, now seen corresponding path program 1 times [2020-06-22 11:13:26,016 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 11:13:26,016 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 11:13:26,018 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:13:26,018 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 11:13:26,018 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:13:26,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:13:26,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:13:26,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 11:13:26,025 INFO L82 PathProgramCache]: Analyzing trace with hash 2075, now seen corresponding path program 2 times [2020-06-22 11:13:26,026 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 11:13:26,026 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 11:13:26,027 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:13:26,027 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 11:13:26,027 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:13:26,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:13:26,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:13:26,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 11:13:26,032 INFO L82 PathProgramCache]: Analyzing trace with hash 52823440, now seen corresponding path program 1 times [2020-06-22 11:13:26,032 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 11:13:26,032 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 11:13:26,033 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:13:26,034 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 11:13:26,034 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:13:26,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 11:13:26,056 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 11:13:26,056 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 11:13:26,057 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-06-22 11:13:26,074 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 11:13:26,074 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 11:13:26,074 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 11:13:26,074 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 11:13:26,075 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 11:13:26,075 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 11:13:26,075 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 11:13:26,075 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 11:13:26,075 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-06-22 11:13:26,075 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 11:13:26,075 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 11:13:26,077 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 11:13:26,081 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 11:13:26,089 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 11:13:26,130 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 11:13:26,130 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 11:13:26,139 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 11:13:26,139 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 11:13:26,166 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 11:13:26,166 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 11:13:26,171 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 11:13:26,171 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 11:13:26,202 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 11:13:26,202 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 11:13:26,442 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 11:13:26,444 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 11:13:26,445 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 11:13:26,445 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 11:13:26,445 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 11:13:26,446 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 11:13:26,446 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 11:13:26,446 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 11:13:26,446 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 11:13:26,446 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-06-22 11:13:26,446 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 11:13:26,446 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 11:13:26,448 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 11:13:26,454 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 11:13:26,457 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 11:13:26,498 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 11:13:26,499 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 11:13:26,499 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 11:13:26,500 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 11:13:26,500 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 11:13:26,500 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 11:13:26,500 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 11:13:26,500 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 11:13:26,501 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 11:13:26,501 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 11:13:26,506 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 11:13:26,510 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 11:13:26,510 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 11:13:26,511 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 11:13:26,511 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 11:13:26,511 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 11:13:26,511 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~K~0, ULTIMATE.start_main_~x~0) = -1*ULTIMATE.start_main_~K~0 + 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2020-06-22 11:13:26,512 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 11:13:26,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 11:13:26,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 11:13:26,547 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 11:13:26,548 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 11:13:26,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 11:13:26,556 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 11:13:26,557 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 11:13:26,573 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 11:13:26,595 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-06-22 11:13:26,595 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 11:13:26,595 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 8 states and 14 transitions. cyclomatic complexity: 8 Second operand 3 states. [2020-06-22 11:13:26,620 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 8 states and 14 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 11 states and 20 transitions. Complement of second has 6 states. [2020-06-22 11:13:26,621 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-06-22 11:13:26,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-06-22 11:13:26,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2020-06-22 11:13:26,621 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 3 letters. Loop has 2 letters. [2020-06-22 11:13:26,622 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 11:13:26,622 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 5 letters. Loop has 2 letters. [2020-06-22 11:13:26,622 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 11:13:26,622 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 3 letters. Loop has 4 letters. [2020-06-22 11:13:26,623 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 11:13:26,624 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 20 transitions. [2020-06-22 11:13:26,625 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-06-22 11:13:26,626 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 10 states and 18 transitions. [2020-06-22 11:13:26,626 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2020-06-22 11:13:26,626 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2020-06-22 11:13:26,626 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 18 transitions. [2020-06-22 11:13:26,626 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 11:13:26,626 INFO L706 BuchiCegarLoop]: Abstraction has 10 states and 18 transitions. [2020-06-22 11:13:26,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 18 transitions. [2020-06-22 11:13:26,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 5. [2020-06-22 11:13:26,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-06-22 11:13:26,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 9 transitions. [2020-06-22 11:13:26,628 INFO L729 BuchiCegarLoop]: Abstraction has 5 states and 9 transitions. [2020-06-22 11:13:26,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-06-22 11:13:26,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-06-22 11:13:26,628 INFO L87 Difference]: Start difference. First operand 5 states and 9 transitions. Second operand 4 states. [2020-06-22 11:13:26,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 11:13:26,654 INFO L93 Difference]: Finished difference Result 7 states and 11 transitions. [2020-06-22 11:13:26,654 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-06-22 11:13:26,655 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7 states and 11 transitions. [2020-06-22 11:13:26,656 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 11:13:26,656 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7 states to 6 states and 8 transitions. [2020-06-22 11:13:26,657 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2020-06-22 11:13:26,657 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2020-06-22 11:13:26,657 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 8 transitions. [2020-06-22 11:13:26,657 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 11:13:26,657 INFO L706 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2020-06-22 11:13:26,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 8 transitions. [2020-06-22 11:13:26,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2020-06-22 11:13:26,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-06-22 11:13:26,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 8 transitions. [2020-06-22 11:13:26,658 INFO L729 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2020-06-22 11:13:26,659 INFO L609 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2020-06-22 11:13:26,659 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2020-06-22 11:13:26,659 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 8 transitions. [2020-06-22 11:13:26,660 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 11:13:26,660 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 11:13:26,660 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 11:13:26,660 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 11:13:26,660 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 11:13:26,661 INFO L794 eck$LassoCheckResult]: Stem: 135#ULTIMATE.startENTRY [25] ULTIMATE.startENTRY-->L18-2: Formula: (and (= v_ULTIMATE.start_main_~K~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~K~0=v_ULTIMATE.start_main_~K~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~K~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~x~0] 136#L18-2 [36] L18-2-->L18: Formula: (> v_ULTIMATE.start_main_~K~0_7 v_ULTIMATE.start_main_~x~0_7) InVars {ULTIMATE.start_main_~K~0=v_ULTIMATE.start_main_~K~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~K~0=v_ULTIMATE.start_main_~K~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 138#L18 [2020-06-22 11:13:26,661 INFO L796 eck$LassoCheckResult]: Loop: 138#L18 [34] L18-->L18-2: Formula: (and (>= v_ULTIMATE.start_main_~K~0_9 v_ULTIMATE.start_main_~x~0_11) (= v_ULTIMATE.start_main_~x~0_10 (+ v_ULTIMATE.start_main_~x~0_11 1))) InVars {ULTIMATE.start_main_~K~0=v_ULTIMATE.start_main_~K~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} OutVars{ULTIMATE.start_main_~K~0=v_ULTIMATE.start_main_~K~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 137#L18-2 [36] L18-2-->L18: Formula: (> v_ULTIMATE.start_main_~K~0_7 v_ULTIMATE.start_main_~x~0_7) InVars {ULTIMATE.start_main_~K~0=v_ULTIMATE.start_main_~K~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~K~0=v_ULTIMATE.start_main_~K~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 138#L18 [2020-06-22 11:13:26,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 11:13:26,661 INFO L82 PathProgramCache]: Analyzing trace with hash 1772, now seen corresponding path program 1 times [2020-06-22 11:13:26,661 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 11:13:26,661 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 11:13:26,663 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:13:26,663 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 11:13:26,663 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:13:26,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:13:26,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:13:26,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 11:13:26,668 INFO L82 PathProgramCache]: Analyzing trace with hash 2051, now seen corresponding path program 1 times [2020-06-22 11:13:26,668 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 11:13:26,668 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 11:13:26,669 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:13:26,670 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 11:13:26,670 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:13:26,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:13:26,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:13:26,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 11:13:26,675 INFO L82 PathProgramCache]: Analyzing trace with hash 1703982, now seen corresponding path program 2 times [2020-06-22 11:13:26,675 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 11:13:26,675 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 11:13:26,676 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:13:26,676 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 11:13:26,677 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:13:26,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:13:26,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:13:26,711 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 11:13:26,711 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 11:13:26,711 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 11:13:26,711 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 11:13:26,711 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 11:13:26,711 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 11:13:26,712 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 11:13:26,712 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 11:13:26,712 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2020-06-22 11:13:26,712 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 11:13:26,712 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 11:13:26,714 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 11:13:26,717 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 11:13:26,725 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 11:13:26,764 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 11:13:26,765 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 11:13:26,769 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 11:13:26,769 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 11:13:26,797 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 11:13:26,797 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 11:13:26,803 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 11:13:26,804 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 11 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 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 11:13:26,838 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 11:13:26,838 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 11:13:27,245 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 11:13:27,248 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 11:13:27,248 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 11:13:27,248 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 11:13:27,249 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 11:13:27,249 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 11:13:27,249 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 11:13:27,249 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 11:13:27,249 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 11:13:27,249 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2020-06-22 11:13:27,249 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 11:13:27,249 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 11:13:27,251 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 11:13:27,255 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 11:13:27,260 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 11:13:27,294 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 11:13:27,295 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 11:13:27,295 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 11:13:27,296 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 11:13:27,296 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 11:13:27,296 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 11:13:27,296 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 11:13:27,298 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 11:13:27,299 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 11:13:27,304 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 11:13:27,304 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 11:13:27,304 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 11:13:27,305 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 11:13:27,305 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 11:13:27,305 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 11:13:27,305 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 11:13:27,306 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 11:13:27,306 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 11:13:27,310 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 11:13:27,315 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-06-22 11:13:27,315 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 11:13:27,315 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 11:13:27,316 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 11:13:27,316 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 11:13:27,316 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~K~0, ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~K~0 - 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2020-06-22 11:13:27,316 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 11:13:27,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 11:13:27,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 11:13:27,337 INFO L256 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 11:13:27,337 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 11:13:27,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 11:13:27,341 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 11:13:27,341 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 11:13:27,358 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 11:13:27,358 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-06-22 11:13:27,358 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 11:13:27,359 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 6 states and 8 transitions. cyclomatic complexity: 4 Second operand 3 states. [2020-06-22 11:13:27,373 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 6 states and 8 transitions. cyclomatic complexity: 4. Second operand 3 states. Result 8 states and 10 transitions. Complement of second has 4 states. [2020-06-22 11:13:27,374 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 11:13:27,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-06-22 11:13:27,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2020-06-22 11:13:27,374 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 2 letters. Loop has 2 letters. [2020-06-22 11:13:27,375 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 11:13:27,375 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 4 letters. Loop has 2 letters. [2020-06-22 11:13:27,375 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 11:13:27,375 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 2 letters. Loop has 4 letters. [2020-06-22 11:13:27,376 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 11:13:27,377 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 10 transitions. [2020-06-22 11:13:27,378 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 11:13:27,378 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 0 states and 0 transitions. [2020-06-22 11:13:27,378 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-06-22 11:13:27,378 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-06-22 11:13:27,378 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-06-22 11:13:27,379 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 11:13:27,379 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 11:13:27,379 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 11:13:27,379 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 11:13:27,379 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2020-06-22 11:13:27,379 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-06-22 11:13:27,379 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 11:13:27,379 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-06-22 11:13:27,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 11:13:27 BasicIcfg [2020-06-22 11:13:27,385 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-22 11:13:27,386 INFO L168 Benchmark]: Toolchain (without parser) took 3264.19 ms. Allocated memory was 649.6 MB in the beginning and 685.2 MB in the end (delta: 35.7 MB). Free memory was 564.3 MB in the beginning and 431.6 MB in the end (delta: 132.7 MB). Peak memory consumption was 168.3 MB. Max. memory is 50.3 GB. [2020-06-22 11:13:27,387 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 11:13:27,388 INFO L168 Benchmark]: CACSL2BoogieTranslator took 286.50 ms. Allocated memory was 649.6 MB in the beginning and 685.2 MB in the end (delta: 35.7 MB). Free memory was 564.3 MB in the beginning and 651.8 MB in the end (delta: -87.5 MB). Peak memory consumption was 28.7 MB. Max. memory is 50.3 GB. [2020-06-22 11:13:27,389 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.63 ms. Allocated memory is still 685.2 MB. Free memory was 651.8 MB in the beginning and 650.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 50.3 GB. [2020-06-22 11:13:27,389 INFO L168 Benchmark]: Boogie Preprocessor took 19.58 ms. Allocated memory is still 685.2 MB. Free memory was 650.4 MB in the beginning and 649.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 50.3 GB. [2020-06-22 11:13:27,390 INFO L168 Benchmark]: RCFGBuilder took 213.14 ms. Allocated memory is still 685.2 MB. Free memory was 649.1 MB in the beginning and 631.5 MB in the end (delta: 17.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 50.3 GB. [2020-06-22 11:13:27,390 INFO L168 Benchmark]: BlockEncodingV2 took 75.48 ms. Allocated memory is still 685.2 MB. Free memory was 631.5 MB in the beginning and 626.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. [2020-06-22 11:13:27,391 INFO L168 Benchmark]: TraceAbstraction took 150.90 ms. Allocated memory is still 685.2 MB. Free memory was 626.1 MB in the beginning and 616.6 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 50.3 GB. [2020-06-22 11:13:27,391 INFO L168 Benchmark]: BuchiAutomizer took 2477.91 ms. Allocated memory is still 685.2 MB. Free memory was 616.6 MB in the beginning and 431.6 MB in the end (delta: 185.0 MB). Peak memory consumption was 185.0 MB. Max. memory is 50.3 GB. [2020-06-22 11:13:27,396 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 7 locations, 9 edges - StatisticsResult: Encoded RCFG 3 locations, 5 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 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 286.50 ms. Allocated memory was 649.6 MB in the beginning and 685.2 MB in the end (delta: 35.7 MB). Free memory was 564.3 MB in the beginning and 651.8 MB in the end (delta: -87.5 MB). Peak memory consumption was 28.7 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 35.63 ms. Allocated memory is still 685.2 MB. Free memory was 651.8 MB in the beginning and 650.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 19.58 ms. Allocated memory is still 685.2 MB. Free memory was 650.4 MB in the beginning and 649.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 50.3 GB. * RCFGBuilder took 213.14 ms. Allocated memory is still 685.2 MB. Free memory was 649.1 MB in the beginning and 631.5 MB in the end (delta: 17.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 75.48 ms. Allocated memory is still 685.2 MB. Free memory was 631.5 MB in the beginning and 626.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. * TraceAbstraction took 150.90 ms. Allocated memory is still 685.2 MB. Free memory was 626.1 MB in the beginning and 616.6 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 2477.91 ms. Allocated memory is still 685.2 MB. Free memory was 616.6 MB in the beginning and 431.6 MB in the end (delta: 185.0 MB). Peak memory consumption was 185.0 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - InvariantResult [Line: 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 5 terminating modules (2 trivial, 0 deterministic, 3 nondeterministic). One nondeterministic module has affine ranking function x + -1 * K and consists of 4 locations. One nondeterministic module has affine ranking function -1 * K + x and consists of 4 locations. One nondeterministic module has affine ranking function K + -1 * x and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.4s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 1.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 8 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 9 SDtfs, 20 SDslu, 0 SDs, 0 SdLazy, 56 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT2 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital10 mio100 ax220 hnf100 lsp45 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 16ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-06-22 11:13:20.918 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox/tmp -i /export/starexec/sandbox/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-06-22 11:13:27.629 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check