YES Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-22 05:40:24,646 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-22 05:40:24,648 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-22 05:40:24,659 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-22 05:40:24,659 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-22 05:40:24,660 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-22 05:40:24,661 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-22 05:40:24,663 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-22 05:40:24,665 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-22 05:40:24,665 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-22 05:40:24,666 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-22 05:40:24,666 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-22 05:40:24,667 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-22 05:40:24,668 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-22 05:40:24,669 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-22 05:40:24,670 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-22 05:40:24,671 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-22 05:40:24,672 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-22 05:40:24,674 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-22 05:40:24,675 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-22 05:40:24,676 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-22 05:40:24,677 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-22 05:40:24,680 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-22 05:40:24,680 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-22 05:40:24,680 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-22 05:40:24,681 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-22 05:40:24,681 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-22 05:40:24,682 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-22 05:40:24,682 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-22 05:40:24,683 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-22 05:40:24,683 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-22 05:40:24,684 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-22 05:40:24,685 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-22 05:40:24,685 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-22 05:40:24,686 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-22 05:40:24,686 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-22 05:40:24,686 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-22 05:40:24,687 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-22 05:40:24,688 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-22 05:40:24,688 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-06-22 05:40:24,702 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-22 05:40:24,702 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-22 05:40:24,703 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-22 05:40:24,704 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-22 05:40:24,704 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-22 05:40:24,704 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-22 05:40:24,704 INFO L133 SettingsManager]: * Use SBE=true [2020-06-22 05:40:24,704 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-22 05:40:24,705 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-22 05:40:24,705 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-22 05:40:24,705 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-22 05:40:24,705 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-22 05:40:24,705 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-22 05:40:24,705 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-22 05:40:24,706 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:40:24,706 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-22 05:40:24,706 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-22 05:40:24,706 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-22 05:40:24,706 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-22 05:40:24,707 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-22 05:40:24,707 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-22 05:40:24,707 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-22 05:40:24,707 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-22 05:40:24,707 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-22 05:40:24,707 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 05:40:24,708 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-22 05:40:24,708 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-22 05:40:24,708 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-22 05:40:24,708 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-22 05:40:24,733 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-22 05:40:24,747 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-22 05:40:24,751 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-22 05:40:24,752 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-22 05:40:24,752 INFO L276 PluginConnector]: CDTParser initialized [2020-06-22 05:40:24,753 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 05:40:24,825 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/f917adf84754436caa5133d4eb662587/FLAG91b24a5ef [2020-06-22 05:40:25,156 INFO L307 CDTParser]: Found 1 translation units. [2020-06-22 05:40:25,157 INFO L161 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 05:40:25,163 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/f917adf84754436caa5133d4eb662587/FLAG91b24a5ef [2020-06-22 05:40:25,575 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/f917adf84754436caa5133d4eb662587 [2020-06-22 05:40:25,586 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-22 05:40:25,588 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-22 05:40:25,589 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-22 05:40:25,589 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-22 05:40:25,592 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-22 05:40:25,593 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 05:40:25" (1/1) ... [2020-06-22 05:40:25,597 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37b96273 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:40:25, skipping insertion in model container [2020-06-22 05:40:25,597 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 05:40:25" (1/1) ... [2020-06-22 05:40:25,605 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-22 05:40:25,622 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-22 05:40:25,780 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 05:40:25,785 INFO L191 MainTranslator]: Completed pre-run [2020-06-22 05:40:25,860 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 05:40:25,876 INFO L195 MainTranslator]: Completed translation [2020-06-22 05:40:25,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:40:25 WrapperNode [2020-06-22 05:40:25,876 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-22 05:40:25,877 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-22 05:40:25,877 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-22 05:40:25,877 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-22 05:40:25,888 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:40:25" (1/1) ... [2020-06-22 05:40:25,893 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:40:25" (1/1) ... [2020-06-22 05:40:25,913 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-22 05:40:25,914 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-22 05:40:25,914 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-22 05:40:25,914 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-22 05:40:25,924 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:40:25" (1/1) ... [2020-06-22 05:40:25,924 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:40:25" (1/1) ... [2020-06-22 05:40:25,924 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:40:25" (1/1) ... [2020-06-22 05:40:25,925 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:40:25" (1/1) ... [2020-06-22 05:40:25,927 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:40:25" (1/1) ... [2020-06-22 05:40:25,932 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:40:25" (1/1) ... [2020-06-22 05:40:25,932 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:40:25" (1/1) ... [2020-06-22 05:40:25,934 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-22 05:40:25,934 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-22 05:40:25,934 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-22 05:40:25,934 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-22 05:40:25,935 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:40:25" (1/1) ... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 05:40:26,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-22 05:40:26,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-22 05:40:26,139 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-22 05:40:26,140 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. [2020-06-22 05:40:26,141 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 05:40:26 BoogieIcfgContainer [2020-06-22 05:40:26,141 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-22 05:40:26,142 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-22 05:40:26,142 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-22 05:40:26,145 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-22 05:40:26,145 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 05:40:26" (1/1) ... [2020-06-22 05:40:26,161 INFO L313 BlockEncoder]: Initial Icfg 8 locations, 10 edges [2020-06-22 05:40:26,163 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-22 05:40:26,164 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-22 05:40:26,164 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-22 05:40:26,165 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-22 05:40:26,167 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-22 05:40:26,168 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-22 05:40:26,168 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-22 05:40:26,183 INFO L185 BlockEncoder]: Using Use SBE [2020-06-22 05:40:26,191 INFO L200 BlockEncoder]: SBE split 0 edges [2020-06-22 05:40:26,196 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-06-22 05:40:26,198 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 05:40:26,214 INFO L100 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2020-06-22 05:40:26,216 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-06-22 05:40:26,217 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 05:40:26,218 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 05:40:26,218 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-22 05:40:26,218 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 05:40:26,218 INFO L313 BlockEncoder]: Encoded RCFG 4 locations, 5 edges [2020-06-22 05:40:26,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 05:40:26 BasicIcfg [2020-06-22 05:40:26,219 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-22 05:40:26,220 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-22 05:40:26,220 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-22 05:40:26,223 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-22 05:40:26,224 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.06 05:40:25" (1/4) ... [2020-06-22 05:40:26,224 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dd96058 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 05:40:26, skipping insertion in model container [2020-06-22 05:40:26,225 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:40:25" (2/4) ... [2020-06-22 05:40:26,225 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dd96058 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 05:40:26, skipping insertion in model container [2020-06-22 05:40:26,225 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 05:40:26" (3/4) ... [2020-06-22 05:40:26,225 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dd96058 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 05:40:26, skipping insertion in model container [2020-06-22 05:40:26,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 05:40:26" (4/4) ... [2020-06-22 05:40:26,227 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 05:40:26,237 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-22 05:40:26,246 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-06-22 05:40:26,264 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-06-22 05:40:26,294 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 05:40:26,295 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-22 05:40:26,295 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-22 05:40:26,295 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 05:40:26,295 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 05:40:26,295 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 05:40:26,295 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-22 05:40:26,296 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 05:40:26,296 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-22 05:40:26,310 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states. [2020-06-22 05:40:26,315 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-06-22 05:40:26,318 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-06-22 05:40:26,371 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-06-22 05:40:26,371 INFO L448 ceAbstractionStarter]: For program point L12(lines 12 16) no Hoare annotation was computed. [2020-06-22 05:40:26,371 INFO L448 ceAbstractionStarter]: For program point L12-2(lines 12 16) no Hoare annotation was computed. [2020-06-22 05:40:26,372 INFO L451 ceAbstractionStarter]: At program point L11-2(lines 11 18) the Hoare annotation is: true [2020-06-22 05:40:26,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 05:40:26 BasicIcfg [2020-06-22 05:40:26,380 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-22 05:40:26,381 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-22 05:40:26,381 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-22 05:40:26,385 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-22 05:40:26,386 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 05:40:26,386 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.06 05:40:25" (1/5) ... [2020-06-22 05:40:26,387 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3fafe57d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 05:40:26, skipping insertion in model container [2020-06-22 05:40:26,387 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 05:40:26,387 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:40:25" (2/5) ... [2020-06-22 05:40:26,387 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3fafe57d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 05:40:26, skipping insertion in model container [2020-06-22 05:40:26,387 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 05:40:26,388 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 05:40:26" (3/5) ... [2020-06-22 05:40:26,388 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3fafe57d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 05:40:26, skipping insertion in model container [2020-06-22 05:40:26,388 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 05:40:26,388 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 05:40:26" (4/5) ... [2020-06-22 05:40:26,389 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3fafe57d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 05:40:26, skipping insertion in model container [2020-06-22 05:40:26,389 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 05:40:26,389 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 05:40:26" (5/5) ... [2020-06-22 05:40:26,391 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 05:40:26,418 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 05:40:26,418 INFO L374 BuchiCegarLoop]: Interprodecural is true [2020-06-22 05:40:26,419 INFO L375 BuchiCegarLoop]: Hoare is true [2020-06-22 05:40:26,419 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 05:40:26,419 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 05:40:26,419 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 05:40:26,419 INFO L379 BuchiCegarLoop]: Difference is false [2020-06-22 05:40:26,420 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 05:40:26,420 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-06-22 05:40:26,423 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states. [2020-06-22 05:40:26,440 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 05:40:26,440 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 05:40:26,441 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 05:40:26,446 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 05:40:26,446 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 05:40:26,446 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2020-06-22 05:40:26,446 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states. [2020-06-22 05:40:26,447 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 05:40:26,447 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 05:40:26,447 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 05:40:26,447 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 05:40:26,447 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 05:40:26,453 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [26] ULTIMATE.startENTRY-->L11-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~c~0_1 0) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~z~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_1, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~c~0, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 6#L11-2true [2020-06-22 05:40:26,453 INFO L796 eck$LassoCheckResult]: Loop: 6#L11-2true [34] L11-2-->L12: Formula: (< v_ULTIMATE.start_main_~x~0_7 v_ULTIMATE.start_main_~y~0_7) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 5#L12true [36] L12-->L12-2: Formula: (and (= v_ULTIMATE.start_main_~z~0_7 (+ v_ULTIMATE.start_main_~z~0_8 1)) (>= v_ULTIMATE.start_main_~x~0_10 v_ULTIMATE.start_main_~z~0_8)) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_8} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~z~0] 3#L12-2true [25] L12-2-->L11-2: Formula: (= v_ULTIMATE.start_main_~c~0_6 (+ v_ULTIMATE.start_main_~c~0_7 1)) InVars {ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_7} OutVars{ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~c~0] 6#L11-2true [2020-06-22 05:40:26,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:40:26,459 INFO L82 PathProgramCache]: Analyzing trace with hash 57, now seen corresponding path program 1 times [2020-06-22 05:40:26,461 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 05:40:26,462 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 05:40:26,489 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:40:26,490 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 05:40:26,490 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:40:26,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:40:26,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:40:26,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:40:26,531 INFO L82 PathProgramCache]: Analyzing trace with hash 63606, now seen corresponding path program 1 times [2020-06-22 05:40:26,531 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 05:40:26,531 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 05:40:26,533 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:40:26,533 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 05:40:26,533 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:40:26,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:40:26,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:40:26,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:40:26,546 INFO L82 PathProgramCache]: Analyzing trace with hash 1731902, now seen corresponding path program 1 times [2020-06-22 05:40:26,546 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 05:40:26,547 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 05:40:26,548 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:40:26,548 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 05:40:26,548 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:40:26,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:40:26,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:40:26,608 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 05:40:26,609 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 05:40:26,609 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 05:40:26,609 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 05:40:26,610 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 05:40:26,610 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:40:26,610 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 05:40:26,610 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 05:40:26,610 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 05:40:26,611 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 05:40:26,611 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 05:40:26,630 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 05:40:26,641 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 05:40:26,645 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 05:40:26,650 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 05:40:26,744 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 05:40:26,744 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:40:26,752 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 05:40:26,752 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 05:40:26,786 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 05:40:26,787 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/sandbox2/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:40:26,794 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 05:40:26,794 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 05:40:26,823 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 05:40:26,824 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/sandbox2/solver/bin/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:40:26,835 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 05:40:26,835 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:40:26,867 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 05:40:26,867 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 05:40:26,901 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 05:40:26,901 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0=0} Honda state: {ULTIMATE.start_main_~c~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~c~0=0}, {ULTIMATE.start_main_~c~0=-1}, {ULTIMATE.start_main_~c~0=2}] Lambdas: [4, 3, 1] Nus: [0, 1] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:40:26,930 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 05:40:26,930 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:40:26,963 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 05:40:26,964 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 05:40:27,241 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 05:40:27,245 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 05:40:27,245 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 05:40:27,245 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 05:40:27,245 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 05:40:27,245 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 05:40:27,245 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 05:40:27,245 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 05:40:27,246 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 05:40:27,246 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 05:40:27,246 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 05:40:27,246 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 05:40:27,248 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 05:40:27,252 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 05:40:27,255 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 05:40:27,259 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 05:40:27,328 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 05:40:27,334 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 05:40:27,336 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 05:40:27,337 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 05:40:27,338 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 05:40:27,338 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 05:40:27,338 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 05:40:27,342 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 05:40:27,342 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 05:40:27,350 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 05:40:27,352 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 05:40:27,353 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 05:40:27,353 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 05:40:27,353 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 05:40:27,353 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 05:40:27,356 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 05:40:27,356 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 05:40:27,364 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 05:40:27,364 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 05:40:27,365 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 05:40:27,365 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 05:40:27,365 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 05:40:27,366 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 05:40:27,366 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 05:40:27,366 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 05:40:27,367 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 05:40:27,371 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 05:40:27,371 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 05:40:27,372 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 05:40:27,372 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 05:40:27,372 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 05:40:27,372 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 05:40:27,373 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 05:40:27,373 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 05:40:27,373 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 05:40:27,379 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 05:40:27,386 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 05:40:27,386 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2020-06-22 05:40:27,388 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 05:40:27,388 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 05:40:27,389 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 05:40:27,389 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~z~0 + 2*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] [2020-06-22 05:40:27,392 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 05:40:27,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:40:27,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 05:40:27,434 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 05:40:27,435 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 05:40:27,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 05:40:27,446 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 05:40:27,446 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 05:40:27,481 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 05:40:27,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 05:40:27,500 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 05:40:27,500 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 05:40:27,501 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-06-22 05:40:27,506 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 05:40:27,508 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 4 states. Second operand 4 states. [2020-06-22 05:40:27,535 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 4 states.. Second operand 4 states. Result 11 states and 14 transitions. Complement of second has 4 states. [2020-06-22 05:40:27,536 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 05:40:27,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-06-22 05:40:27,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2020-06-22 05:40:27,540 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 1 letters. Loop has 3 letters. [2020-06-22 05:40:27,542 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 05:40:27,542 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 4 letters. Loop has 3 letters. [2020-06-22 05:40:27,542 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 05:40:27,542 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 1 letters. Loop has 6 letters. [2020-06-22 05:40:27,543 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 05:40:27,549 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 14 transitions. [2020-06-22 05:40:27,550 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 05:40:27,555 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 11 states and 14 transitions. [2020-06-22 05:40:27,556 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2020-06-22 05:40:27,556 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2020-06-22 05:40:27,557 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 14 transitions. [2020-06-22 05:40:27,557 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 05:40:27,557 INFO L706 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2020-06-22 05:40:27,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 14 transitions. [2020-06-22 05:40:27,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2020-06-22 05:40:27,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-06-22 05:40:27,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2020-06-22 05:40:27,588 INFO L729 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2020-06-22 05:40:27,588 INFO L609 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2020-06-22 05:40:27,588 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2020-06-22 05:40:27,588 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 13 transitions. [2020-06-22 05:40:27,589 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 05:40:27,589 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 05:40:27,589 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 05:40:27,589 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-06-22 05:40:27,589 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 05:40:27,590 INFO L794 eck$LassoCheckResult]: Stem: 61#ULTIMATE.startENTRY [26] ULTIMATE.startENTRY-->L11-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~c~0_1 0) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~z~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_1, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~c~0, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 62#L11-2 [34] L11-2-->L12: Formula: (< v_ULTIMATE.start_main_~x~0_7 v_ULTIMATE.start_main_~y~0_7) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 63#L12 [27] L12-->L12-2: Formula: (and (< v_ULTIMATE.start_main_~x~0_9 v_ULTIMATE.start_main_~z~0_6) (= v_ULTIMATE.start_main_~x~0_8 (+ v_ULTIMATE.start_main_~x~0_9 1))) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_6} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 56#L12-2 [2020-06-22 05:40:27,590 INFO L796 eck$LassoCheckResult]: Loop: 56#L12-2 [25] L12-2-->L11-2: Formula: (= v_ULTIMATE.start_main_~c~0_6 (+ v_ULTIMATE.start_main_~c~0_7 1)) InVars {ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_7} OutVars{ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~c~0] 57#L11-2 [34] L11-2-->L12: Formula: (< v_ULTIMATE.start_main_~x~0_7 v_ULTIMATE.start_main_~y~0_7) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 65#L12 [36] L12-->L12-2: Formula: (and (= v_ULTIMATE.start_main_~z~0_7 (+ v_ULTIMATE.start_main_~z~0_8 1)) (>= v_ULTIMATE.start_main_~x~0_10 v_ULTIMATE.start_main_~z~0_8)) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_8} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~z~0] 56#L12-2 [2020-06-22 05:40:27,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:40:27,591 INFO L82 PathProgramCache]: Analyzing trace with hash 55858, now seen corresponding path program 1 times [2020-06-22 05:40:27,591 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 05:40:27,591 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 05:40:27,593 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:40:27,593 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 05:40:27,593 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:40:27,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:40:27,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:40:27,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:40:27,602 INFO L82 PathProgramCache]: Analyzing trace with hash 54906, now seen corresponding path program 2 times [2020-06-22 05:40:27,602 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 05:40:27,602 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 05:40:27,603 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:40:27,603 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 05:40:27,603 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:40:27,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:40:27,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:40:27,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:40:27,610 INFO L82 PathProgramCache]: Analyzing trace with hash 1664090793, now seen corresponding path program 1 times [2020-06-22 05:40:27,610 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 05:40:27,610 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 05:40:27,611 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:40:27,611 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 05:40:27,611 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:40:27,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:40:27,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:40:27,649 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 05:40:27,649 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 05:40:27,649 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 05:40:27,649 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 05:40:27,649 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 05:40:27,649 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:40:27,650 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 05:40:27,650 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 05:40:27,650 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 05:40:27,650 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 05:40:27,650 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 05:40:27,652 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 05:40:27,656 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 05:40:27,659 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 05:40:27,666 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 05:40:27,718 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 05:40:27,718 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/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 05:40:27,724 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 05:40:27,724 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 05:40:27,753 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 05:40:27,753 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/sandbox2/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 05:40:27,760 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 05:40:27,760 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 05:40:27,788 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 05:40:27,788 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/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 05:40:27,794 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 05:40:27,794 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/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 05:40:27,827 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 05:40:27,827 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 05:40:28,129 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 05:40:28,132 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 05:40:28,133 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 05:40:28,133 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 05:40:28,134 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 05:40:28,134 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 05:40:28,134 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 05:40:28,134 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 05:40:28,134 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 05:40:28,134 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 05:40:28,134 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 05:40:28,134 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 05:40:28,136 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 05:40:28,139 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 05:40:28,148 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 05:40:28,150 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 05:40:28,215 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 05:40:28,215 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 05:40:28,216 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 05:40:28,217 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 05:40:28,218 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 05:40:28,218 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 05:40:28,218 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 05:40:28,220 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 05:40:28,220 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 05:40:28,224 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 05:40:28,225 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 05:40:28,225 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 05:40:28,226 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 05:40:28,226 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 05:40:28,226 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 05:40:28,226 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 05:40:28,227 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 05:40:28,227 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 05:40:28,232 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 05:40:28,236 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 05:40:28,237 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2020-06-22 05:40:28,237 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 05:40:28,237 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 05:40:28,237 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 05:40:28,238 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~z~0) = 2*ULTIMATE.start_main_~x~0 - 2*ULTIMATE.start_main_~z~0 + 1 Supporting invariants [] [2020-06-22 05:40:28,238 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 05:40:28,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:40:28,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 05:40:28,261 INFO L256 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 05:40:28,262 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 05:40:28,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 05:40:28,267 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 05:40:28,267 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 05:40:28,268 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 05:40:28,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 05:40:28,274 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 05:40:28,274 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 05:40:28,294 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-06-22 05:40:28,295 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 05:40:28,295 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 10 states and 13 transitions. cyclomatic complexity: 5 Second operand 3 states. [2020-06-22 05:40:28,309 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 10 states and 13 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 13 states and 17 transitions. Complement of second has 4 states. [2020-06-22 05:40:28,310 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 05:40:28,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-06-22 05:40:28,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2020-06-22 05:40:28,311 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 3 letters. Loop has 3 letters. [2020-06-22 05:40:28,311 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 05:40:28,312 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 6 letters. Loop has 3 letters. [2020-06-22 05:40:28,312 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 05:40:28,312 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 3 letters. Loop has 6 letters. [2020-06-22 05:40:28,312 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 05:40:28,313 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 17 transitions. [2020-06-22 05:40:28,315 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-06-22 05:40:28,316 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 13 states and 17 transitions. [2020-06-22 05:40:28,316 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2020-06-22 05:40:28,316 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2020-06-22 05:40:28,316 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 17 transitions. [2020-06-22 05:40:28,316 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 05:40:28,316 INFO L706 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2020-06-22 05:40:28,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 17 transitions. [2020-06-22 05:40:28,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 8. [2020-06-22 05:40:28,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-06-22 05:40:28,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2020-06-22 05:40:28,318 INFO L729 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2020-06-22 05:40:28,318 INFO L609 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2020-06-22 05:40:28,318 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2020-06-22 05:40:28,318 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 11 transitions. [2020-06-22 05:40:28,319 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-06-22 05:40:28,319 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 05:40:28,319 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 05:40:28,319 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 05:40:28,319 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 05:40:28,319 INFO L794 eck$LassoCheckResult]: Stem: 127#ULTIMATE.startENTRY [26] ULTIMATE.startENTRY-->L11-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~c~0_1 0) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~z~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_1, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~c~0, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 128#L11-2 [34] L11-2-->L12: Formula: (< v_ULTIMATE.start_main_~x~0_7 v_ULTIMATE.start_main_~y~0_7) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 129#L12 [2020-06-22 05:40:28,320 INFO L796 eck$LassoCheckResult]: Loop: 129#L12 [27] L12-->L12-2: Formula: (and (< v_ULTIMATE.start_main_~x~0_9 v_ULTIMATE.start_main_~z~0_6) (= v_ULTIMATE.start_main_~x~0_8 (+ v_ULTIMATE.start_main_~x~0_9 1))) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_6} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 123#L12-2 [25] L12-2-->L11-2: Formula: (= v_ULTIMATE.start_main_~c~0_6 (+ v_ULTIMATE.start_main_~c~0_7 1)) InVars {ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_7} OutVars{ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~c~0] 125#L11-2 [34] L11-2-->L12: Formula: (< v_ULTIMATE.start_main_~x~0_7 v_ULTIMATE.start_main_~y~0_7) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 129#L12 [2020-06-22 05:40:28,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:40:28,320 INFO L82 PathProgramCache]: Analyzing trace with hash 1801, now seen corresponding path program 1 times [2020-06-22 05:40:28,320 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 05:40:28,320 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 05:40:28,322 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:40:28,322 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 05:40:28,322 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:40:28,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:40:28,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:40:28,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:40:28,329 INFO L82 PathProgramCache]: Analyzing trace with hash 56547, now seen corresponding path program 1 times [2020-06-22 05:40:28,329 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 05:40:28,329 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 05:40:28,330 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:40:28,330 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 05:40:28,330 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:40:28,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:40:28,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:40:28,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:40:28,336 INFO L82 PathProgramCache]: Analyzing trace with hash 53680347, now seen corresponding path program 1 times [2020-06-22 05:40:28,336 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 05:40:28,336 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 05:40:28,337 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:40:28,337 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 05:40:28,337 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:40:28,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:40:28,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:40:28,369 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 05:40:28,369 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 05:40:28,369 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 05:40:28,369 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 05:40:28,370 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 05:40:28,370 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:40:28,370 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 05:40:28,370 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 05:40:28,370 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-06-22 05:40:28,370 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 05:40:28,370 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 05:40:28,372 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 05:40:28,381 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 05:40:28,384 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 05:40:28,387 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 05:40:28,449 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 05:40:28,449 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 12 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 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:40:28,453 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 05:40:28,453 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 13 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 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:40:28,485 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 05:40:28,486 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 05:40:29,004 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 05:40:29,007 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 05:40:29,008 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 05:40:29,008 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 05:40:29,008 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 05:40:29,008 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 05:40:29,008 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 05:40:29,008 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 05:40:29,008 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 05:40:29,009 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-06-22 05:40:29,009 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 05:40:29,009 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 05:40:29,010 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 05:40:29,024 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 05:40:29,027 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 05:40:29,030 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 05:40:29,084 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 05:40:29,084 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 05:40:29,085 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 05:40:29,086 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 05:40:29,086 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 05:40:29,086 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 05:40:29,086 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 05:40:29,086 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 05:40:29,087 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 05:40:29,087 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 05:40:29,091 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 05:40:29,097 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-06-22 05:40:29,097 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 05:40:29,097 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 05:40:29,098 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 05:40:29,098 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 05:40:29,098 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~z~0 - 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2020-06-22 05:40:29,098 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 05:40:29,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:40:29,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 05:40:29,122 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 05:40:29,123 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 05:40:29,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 05:40:29,127 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 05:40:29,128 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 05:40:29,141 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 05:40:29,165 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-06-22 05:40:29,165 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 3 loop predicates [2020-06-22 05:40:29,166 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 8 states and 11 transitions. cyclomatic complexity: 4 Second operand 3 states. [2020-06-22 05:40:29,180 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 8 states and 11 transitions. cyclomatic complexity: 4. Second operand 3 states. Result 16 states and 19 transitions. Complement of second has 6 states. [2020-06-22 05:40:29,181 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 05:40:29,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-06-22 05:40:29,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2020-06-22 05:40:29,181 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 2 letters. Loop has 3 letters. [2020-06-22 05:40:29,182 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 05:40:29,182 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 5 letters. Loop has 3 letters. [2020-06-22 05:40:29,182 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 05:40:29,182 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 2 letters. Loop has 6 letters. [2020-06-22 05:40:29,183 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 05:40:29,184 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 19 transitions. [2020-06-22 05:40:29,185 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2020-06-22 05:40:29,186 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 12 states and 15 transitions. [2020-06-22 05:40:29,186 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2020-06-22 05:40:29,186 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2020-06-22 05:40:29,187 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 15 transitions. [2020-06-22 05:40:29,187 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 05:40:29,187 INFO L706 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2020-06-22 05:40:29,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 15 transitions. [2020-06-22 05:40:29,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 10. [2020-06-22 05:40:29,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-06-22 05:40:29,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2020-06-22 05:40:29,188 INFO L729 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2020-06-22 05:40:29,189 INFO L609 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2020-06-22 05:40:29,189 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2020-06-22 05:40:29,189 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 13 transitions. [2020-06-22 05:40:29,189 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2020-06-22 05:40:29,189 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 05:40:29,190 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 05:40:29,190 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 05:40:29,190 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 1, 1] [2020-06-22 05:40:29,190 INFO L794 eck$LassoCheckResult]: Stem: 189#ULTIMATE.startENTRY [26] ULTIMATE.startENTRY-->L11-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~c~0_1 0) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~z~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_1, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~c~0, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 190#L11-2 [34] L11-2-->L12: Formula: (< v_ULTIMATE.start_main_~x~0_7 v_ULTIMATE.start_main_~y~0_7) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 191#L12 [2020-06-22 05:40:29,191 INFO L796 eck$LassoCheckResult]: Loop: 191#L12 [27] L12-->L12-2: Formula: (and (< v_ULTIMATE.start_main_~x~0_9 v_ULTIMATE.start_main_~z~0_6) (= v_ULTIMATE.start_main_~x~0_8 (+ v_ULTIMATE.start_main_~x~0_9 1))) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_6} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 186#L12-2 [25] L12-2-->L11-2: Formula: (= v_ULTIMATE.start_main_~c~0_6 (+ v_ULTIMATE.start_main_~c~0_7 1)) InVars {ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_7} OutVars{ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~c~0] 188#L11-2 [34] L11-2-->L12: Formula: (< v_ULTIMATE.start_main_~x~0_7 v_ULTIMATE.start_main_~y~0_7) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 192#L12 [36] L12-->L12-2: Formula: (and (= v_ULTIMATE.start_main_~z~0_7 (+ v_ULTIMATE.start_main_~z~0_8 1)) (>= v_ULTIMATE.start_main_~x~0_10 v_ULTIMATE.start_main_~z~0_8)) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_8} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~z~0] 193#L12-2 [25] L12-2-->L11-2: Formula: (= v_ULTIMATE.start_main_~c~0_6 (+ v_ULTIMATE.start_main_~c~0_7 1)) InVars {ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_7} OutVars{ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~c~0] 194#L11-2 [34] L11-2-->L12: Formula: (< v_ULTIMATE.start_main_~x~0_7 v_ULTIMATE.start_main_~y~0_7) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 191#L12 [2020-06-22 05:40:29,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:40:29,191 INFO L82 PathProgramCache]: Analyzing trace with hash 1801, now seen corresponding path program 2 times [2020-06-22 05:40:29,191 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 05:40:29,191 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 05:40:29,192 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:40:29,192 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 05:40:29,193 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:40:29,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:40:29,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:40:29,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:40:29,198 INFO L82 PathProgramCache]: Analyzing trace with hash 1684627082, now seen corresponding path program 1 times [2020-06-22 05:40:29,198 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 05:40:29,198 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 05:40:29,199 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:40:29,199 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 05:40:29,199 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:40:29,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:40:29,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:40:29,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:40:29,206 INFO L82 PathProgramCache]: Analyzing trace with hash 1463418770, now seen corresponding path program 2 times [2020-06-22 05:40:29,206 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 05:40:29,206 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 05:40:29,207 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:40:29,208 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 05:40:29,208 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:40:29,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:40:29,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:40:29,249 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 05:40:29,249 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 05:40:29,249 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 05:40:29,249 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 05:40:29,249 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 05:40:29,249 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:40:29,249 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 05:40:29,250 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 05:40:29,250 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2020-06-22 05:40:29,250 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 05:40:29,250 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 05:40:29,252 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 05:40:29,266 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 05:40:29,269 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 05:40:29,272 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 05:40:29,362 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 05:40:29,362 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 14 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 14 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:40:29,366 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 05:40:29,366 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 15 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 15 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:40:29,397 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 05:40:29,397 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 05:40:29,943 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 05:40:29,946 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 05:40:29,964 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 05:40:29,965 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 05:40:29,965 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 05:40:29,965 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 05:40:29,965 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 05:40:29,965 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 05:40:29,965 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 05:40:29,965 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2020-06-22 05:40:29,965 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 05:40:29,965 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 05:40:29,967 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 05:40:29,979 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 05:40:29,982 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 05:40:29,984 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 05:40:30,047 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 05:40:30,048 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 05:40:30,048 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 05:40:30,049 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 05:40:30,049 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 05:40:30,049 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 05:40:30,049 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 05:40:30,049 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 05:40:30,050 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 05:40:30,050 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 05:40:30,055 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 05:40:30,060 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-06-22 05:40:30,060 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 05:40:30,060 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 05:40:30,061 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 05:40:30,061 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 05:40:30,061 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~y~0) = -1*ULTIMATE.start_main_~z~0 + 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2020-06-22 05:40:30,061 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 05:40:30,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:40:30,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 05:40:30,078 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 05:40:30,078 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 05:40:30,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 05:40:30,082 INFO L256 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2020-06-22 05:40:30,083 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 05:40:30,104 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 05:40:30,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 05:40:30,134 INFO L256 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 6 conjunts are in the unsatisfiable core [2020-06-22 05:40:30,135 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 05:40:30,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 05:40:30,188 INFO L256 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2020-06-22 05:40:30,188 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 05:40:30,193 INFO L98 LoopCannibalizer]: 4 predicates before loop cannibalization 6 predicates after loop cannibalization [2020-06-22 05:40:30,194 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 6 loop predicates [2020-06-22 05:40:30,194 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 10 states and 13 transitions. cyclomatic complexity: 4 Second operand 5 states. [2020-06-22 05:40:30,229 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 10 states and 13 transitions. cyclomatic complexity: 4. Second operand 5 states. Result 28 states and 38 transitions. Complement of second has 8 states. [2020-06-22 05:40:30,229 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 05:40:30,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-06-22 05:40:30,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2020-06-22 05:40:30,230 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 2 letters. Loop has 6 letters. [2020-06-22 05:40:30,230 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 05:40:30,230 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 8 letters. Loop has 6 letters. [2020-06-22 05:40:30,231 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 05:40:30,231 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 2 letters. Loop has 12 letters. [2020-06-22 05:40:30,231 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 05:40:30,232 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 38 transitions. [2020-06-22 05:40:30,234 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 05:40:30,234 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 0 states and 0 transitions. [2020-06-22 05:40:30,235 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-06-22 05:40:30,235 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-06-22 05:40:30,235 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-06-22 05:40:30,235 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 05:40:30,235 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 05:40:30,236 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 05:40:30,236 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 05:40:30,236 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2020-06-22 05:40:30,236 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-06-22 05:40:30,236 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 05:40:30,236 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-06-22 05:40:30,242 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 05:40:30 BasicIcfg [2020-06-22 05:40:30,242 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-22 05:40:30,242 INFO L168 Benchmark]: Toolchain (without parser) took 4655.81 ms. Allocated memory was 649.6 MB in the beginning and 744.0 MB in the end (delta: 94.4 MB). Free memory was 558.8 MB in the beginning and 632.1 MB in the end (delta: -73.3 MB). Peak memory consumption was 21.0 MB. Max. memory is 50.3 GB. [2020-06-22 05:40:30,244 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 649.6 MB. Free memory is still 580.4 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 05:40:30,244 INFO L168 Benchmark]: CACSL2BoogieTranslator took 288.03 ms. Allocated memory was 649.6 MB in the beginning and 670.0 MB in the end (delta: 20.4 MB). Free memory was 558.8 MB in the beginning and 636.7 MB in the end (delta: -77.9 MB). Peak memory consumption was 28.6 MB. Max. memory is 50.3 GB. [2020-06-22 05:40:30,245 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.33 ms. Allocated memory is still 670.0 MB. Free memory was 636.7 MB in the beginning and 632.2 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 50.3 GB. [2020-06-22 05:40:30,246 INFO L168 Benchmark]: Boogie Preprocessor took 20.00 ms. Allocated memory is still 670.0 MB. Free memory is still 632.2 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 05:40:30,246 INFO L168 Benchmark]: RCFGBuilder took 207.44 ms. Allocated memory is still 670.0 MB. Free memory was 630.9 MB in the beginning and 617.8 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 50.3 GB. [2020-06-22 05:40:30,247 INFO L168 Benchmark]: BlockEncodingV2 took 77.26 ms. Allocated memory is still 670.0 MB. Free memory was 617.8 MB in the beginning and 613.8 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 50.3 GB. [2020-06-22 05:40:30,247 INFO L168 Benchmark]: TraceAbstraction took 160.48 ms. Allocated memory is still 670.0 MB. Free memory was 613.8 MB in the beginning and 604.3 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 50.3 GB. [2020-06-22 05:40:30,248 INFO L168 Benchmark]: BuchiAutomizer took 3861.07 ms. Allocated memory was 670.0 MB in the beginning and 744.0 MB in the end (delta: 73.9 MB). Free memory was 604.3 MB in the beginning and 632.1 MB in the end (delta: -27.8 MB). Peak memory consumption was 46.1 MB. Max. memory is 50.3 GB. [2020-06-22 05:40:30,252 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 8 locations, 10 edges - StatisticsResult: Encoded RCFG 4 locations, 5 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 649.6 MB. Free memory is still 580.4 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 288.03 ms. Allocated memory was 649.6 MB in the beginning and 670.0 MB in the end (delta: 20.4 MB). Free memory was 558.8 MB in the beginning and 636.7 MB in the end (delta: -77.9 MB). Peak memory consumption was 28.6 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 36.33 ms. Allocated memory is still 670.0 MB. Free memory was 636.7 MB in the beginning and 632.2 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 20.00 ms. Allocated memory is still 670.0 MB. Free memory is still 632.2 MB. There was no memory consumed. Max. memory is 50.3 GB. * RCFGBuilder took 207.44 ms. Allocated memory is still 670.0 MB. Free memory was 630.9 MB in the beginning and 617.8 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 77.26 ms. Allocated memory is still 670.0 MB. Free memory was 617.8 MB in the beginning and 613.8 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 50.3 GB. * TraceAbstraction took 160.48 ms. Allocated memory is still 670.0 MB. Free memory was 613.8 MB in the beginning and 604.3 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 3861.07 ms. Allocated memory was 670.0 MB in the beginning and 744.0 MB in the end (delta: 73.9 MB). Free memory was 604.3 MB in the beginning and 632.1 MB in the end (delta: -27.8 MB). Peak memory consumption was 46.1 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 4 locations, 0 error locations. SAFE Result, 0.0s OverallTime, 0 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 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 4 terminating modules (0 trivial, 0 deterministic, 4 nondeterministic). One nondeterministic module has affine ranking function -2 * z + 2 * x + 1 and consists of 3 locations. One nondeterministic module has affine ranking function 2 * x + -2 * z + 1 and consists of 3 locations. One nondeterministic module has affine ranking function z + -1 * x and consists of 3 locations. One nondeterministic module has affine ranking function -1 * z + y and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.8s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 3.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 8 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 10 states and ocurred in iteration 1. Nontrivial modules had stage [4, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 3/3 HoareTripleCheckerStatistics: 20 SDtfs, 32 SDslu, 10 SDs, 0 SdLazy, 37 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT4 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital20 mio100 ax161 hnf100 lsp46 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq148 hnf94 smp95 dnf100 smp100 tf110 neg100 sie113 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 15ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 2.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-06-22 05:40:22.383 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox2/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox2/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-06-22 05:40:30.483 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check