YES Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-22 11:39:39,625 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-22 11:39:39,627 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-22 11:39:39,638 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-22 11:39:39,639 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-22 11:39:39,640 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-22 11:39:39,641 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-22 11:39:39,642 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-22 11:39:39,644 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-22 11:39:39,644 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-22 11:39:39,645 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-22 11:39:39,646 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-22 11:39:39,646 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-22 11:39:39,647 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-22 11:39:39,648 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-22 11:39:39,649 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-22 11:39:39,650 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-22 11:39:39,651 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-22 11:39:39,653 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-22 11:39:39,655 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-22 11:39:39,655 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-22 11:39:39,657 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-22 11:39:39,659 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-22 11:39:39,659 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-22 11:39:39,659 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-22 11:39:39,660 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-22 11:39:39,660 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-22 11:39:39,661 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-22 11:39:39,661 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-22 11:39:39,662 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-22 11:39:39,663 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-22 11:39:39,663 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-22 11:39:39,664 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-22 11:39:39,665 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-22 11:39:39,665 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-22 11:39:39,665 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-22 11:39:39,665 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-22 11:39:39,666 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-22 11:39:39,667 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-22 11:39:39,667 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-06-22 11:39:39,682 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-22 11:39:39,682 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-22 11:39:39,683 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-22 11:39:39,683 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-22 11:39:39,684 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-22 11:39:39,684 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-22 11:39:39,684 INFO L133 SettingsManager]: * Use SBE=true [2020-06-22 11:39:39,684 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-22 11:39:39,684 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-22 11:39:39,684 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-22 11:39:39,684 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-22 11:39:39,685 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-22 11:39:39,685 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-22 11:39:39,685 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-22 11:39:39,685 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 11:39:39,685 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-22 11:39:39,685 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-22 11:39:39,686 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-22 11:39:39,686 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-22 11:39:39,686 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-22 11:39:39,686 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-22 11:39:39,686 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-22 11:39:39,686 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-22 11:39:39,686 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-22 11:39:39,687 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 11:39:39,687 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-22 11:39:39,687 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-22 11:39:39,687 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-22 11:39:39,687 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-22 11:39:39,712 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-22 11:39:39,725 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-22 11:39:39,729 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-22 11:39:39,730 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-22 11:39:39,730 INFO L276 PluginConnector]: CDTParser initialized [2020-06-22 11:39:39,731 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-06-22 11:39:39,795 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/c3f3114f9cc242e5b2360a8dc55226c7/FLAG732910acc [2020-06-22 11:39:40,127 INFO L307 CDTParser]: Found 1 translation units. [2020-06-22 11:39:40,127 INFO L161 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-06-22 11:39:40,134 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/c3f3114f9cc242e5b2360a8dc55226c7/FLAG732910acc [2020-06-22 11:39:40,548 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/c3f3114f9cc242e5b2360a8dc55226c7 [2020-06-22 11:39:40,560 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-22 11:39:40,562 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-22 11:39:40,563 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-22 11:39:40,563 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-22 11:39:40,567 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-22 11:39:40,568 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 11:39:40" (1/1) ... [2020-06-22 11:39:40,572 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62f82fb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:39:40, skipping insertion in model container [2020-06-22 11:39:40,572 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 11:39:40" (1/1) ... [2020-06-22 11:39:40,580 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-22 11:39:40,599 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-22 11:39:40,757 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 11:39:40,761 INFO L191 MainTranslator]: Completed pre-run [2020-06-22 11:39:40,778 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 11:39:40,847 INFO L195 MainTranslator]: Completed translation [2020-06-22 11:39:40,847 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:39:40 WrapperNode [2020-06-22 11:39:40,848 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-22 11:39:40,848 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-22 11:39:40,849 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-22 11:39:40,849 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-22 11:39:40,858 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:39:40" (1/1) ... [2020-06-22 11:39:40,863 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:39:40" (1/1) ... [2020-06-22 11:39:40,883 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-22 11:39:40,883 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-22 11:39:40,884 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-22 11:39:40,884 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-22 11:39:40,893 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:39:40" (1/1) ... [2020-06-22 11:39:40,893 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:39:40" (1/1) ... [2020-06-22 11:39:40,894 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:39:40" (1/1) ... [2020-06-22 11:39:40,894 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:39:40" (1/1) ... [2020-06-22 11:39:40,896 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:39:40" (1/1) ... [2020-06-22 11:39:40,900 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:39:40" (1/1) ... [2020-06-22 11:39:40,901 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:39:40" (1/1) ... [2020-06-22 11:39:40,902 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-22 11:39:40,903 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-22 11:39:40,903 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-22 11:39:40,903 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-22 11:39:40,904 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:39:40" (1/1) ... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 11:39:40,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-22 11:39:40,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-22 11:39:41,098 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-22 11:39:41,098 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. [2020-06-22 11:39:41,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:39:41 BoogieIcfgContainer [2020-06-22 11:39:41,100 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-22 11:39:41,100 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-22 11:39:41,100 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-22 11:39:41,102 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-22 11:39:41,103 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:39:41" (1/1) ... [2020-06-22 11:39:41,117 INFO L313 BlockEncoder]: Initial Icfg 8 locations, 11 edges [2020-06-22 11:39:41,119 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-22 11:39:41,120 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-22 11:39:41,121 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-22 11:39:41,121 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-22 11:39:41,123 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-22 11:39:41,124 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-22 11:39:41,124 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-22 11:39:41,140 INFO L185 BlockEncoder]: Using Use SBE [2020-06-22 11:39:41,154 INFO L200 BlockEncoder]: SBE split 1 edges [2020-06-22 11:39:41,158 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-06-22 11:39:41,160 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 11:39:41,171 INFO L100 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2020-06-22 11:39:41,172 INFO L70 RemoveSinkStates]: Removed 3 edges and 2 locations by removing sink states [2020-06-22 11:39:41,174 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 11:39:41,174 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 11:39:41,174 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-22 11:39:41,174 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 11:39:41,175 INFO L313 BlockEncoder]: Encoded RCFG 4 locations, 6 edges [2020-06-22 11:39:41,175 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 11:39:41 BasicIcfg [2020-06-22 11:39:41,175 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-22 11:39:41,176 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-22 11:39:41,176 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-22 11:39:41,179 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-22 11:39:41,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.06 11:39:40" (1/4) ... [2020-06-22 11:39:41,180 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fa953e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 11:39:41, skipping insertion in model container [2020-06-22 11:39:41,182 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:39:40" (2/4) ... [2020-06-22 11:39:41,182 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fa953e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 11:39:41, skipping insertion in model container [2020-06-22 11:39:41,182 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:39:41" (3/4) ... [2020-06-22 11:39:41,183 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fa953e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 11:39:41, skipping insertion in model container [2020-06-22 11:39:41,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 11:39:41" (4/4) ... [2020-06-22 11:39:41,184 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 11:39:41,194 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-22 11:39:41,202 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-06-22 11:39:41,219 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-06-22 11:39:41,246 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 11:39:41,247 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-22 11:39:41,247 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-22 11:39:41,247 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 11:39:41,247 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 11:39:41,248 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 11:39:41,248 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-22 11:39:41,248 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 11:39:41,248 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-22 11:39:41,262 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states. [2020-06-22 11:39:41,268 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-06-22 11:39:41,271 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-06-22 11:39:41,275 INFO L448 ceAbstractionStarter]: For program point L14(lines 14 15) no Hoare annotation was computed. [2020-06-22 11:39:41,275 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-06-22 11:39:41,275 INFO L448 ceAbstractionStarter]: For program point L20(lines 20 21) no Hoare annotation was computed. [2020-06-22 11:39:41,276 INFO L448 ceAbstractionStarter]: For program point L20-2(lines 5 25) no Hoare annotation was computed. [2020-06-22 11:39:41,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 11:39:41 BasicIcfg [2020-06-22 11:39:41,279 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-22 11:39:41,279 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-22 11:39:41,279 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-22 11:39:41,283 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-22 11:39:41,284 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 11:39:41,284 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.06 11:39:40" (1/5) ... [2020-06-22 11:39:41,284 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@21ad10e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 11:39:41, skipping insertion in model container [2020-06-22 11:39:41,285 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 11:39:41,285 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:39:40" (2/5) ... [2020-06-22 11:39:41,285 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@21ad10e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 11:39:41, skipping insertion in model container [2020-06-22 11:39:41,285 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 11:39:41,285 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:39:41" (3/5) ... [2020-06-22 11:39:41,286 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@21ad10e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 11:39:41, skipping insertion in model container [2020-06-22 11:39:41,286 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 11:39:41,286 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 11:39:41" (4/5) ... [2020-06-22 11:39:41,287 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@21ad10e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 11:39:41, skipping insertion in model container [2020-06-22 11:39:41,287 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 11:39:41,287 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 11:39:41" (5/5) ... [2020-06-22 11:39:41,288 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 11:39:41,316 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 11:39:41,316 INFO L374 BuchiCegarLoop]: Interprodecural is true [2020-06-22 11:39:41,316 INFO L375 BuchiCegarLoop]: Hoare is true [2020-06-22 11:39:41,316 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 11:39:41,317 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 11:39:41,317 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 11:39:41,317 INFO L379 BuchiCegarLoop]: Difference is false [2020-06-22 11:39:41,317 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 11:39:41,317 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-06-22 11:39:41,321 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states. [2020-06-22 11:39:41,338 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 11:39:41,339 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 11:39:41,339 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 11:39:41,346 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 11:39:41,346 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 11:39:41,347 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2020-06-22 11:39:41,347 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states. [2020-06-22 11:39:41,347 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 11:39:41,347 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 11:39:41,348 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 11:39:41,348 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 11:39:41,348 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 11:39:41,353 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [29] ULTIMATE.startENTRY-->L14: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~res~0_1 0) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~res~0=v_ULTIMATE.start_main_~res~0_1, ULTIMATE.start_main_~min~0=v_ULTIMATE.start_main_~min~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~res~0, ULTIMATE.start_main_~min~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 5#L14true [40] L14-->L20-2: Formula: (and (>= v_ULTIMATE.start_main_~x~0_9 v_ULTIMATE.start_main_~y~0_9) (= v_ULTIMATE.start_main_~min~0_7 v_ULTIMATE.start_main_~y~0_9)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~min~0=v_ULTIMATE.start_main_~min~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~min~0] 4#L20-2true [2020-06-22 11:39:41,354 INFO L796 eck$LassoCheckResult]: Loop: 4#L20-2true [33] L20-2-->L20: Formula: (and (= v_ULTIMATE.start_main_~y~0_11 (+ v_ULTIMATE.start_main_~y~0_12 1)) (= v_ULTIMATE.start_main_~min~0_9 v_ULTIMATE.start_main_~y~0_12) (= v_ULTIMATE.start_main_~res~0_6 (+ v_ULTIMATE.start_main_~res~0_7 1))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12, ULTIMATE.start_main_~res~0=v_ULTIMATE.start_main_~res~0_7, ULTIMATE.start_main_~min~0=v_ULTIMATE.start_main_~min~0_9} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~res~0=v_ULTIMATE.start_main_~res~0_6, ULTIMATE.start_main_~min~0=v_ULTIMATE.start_main_~min~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~res~0, ULTIMATE.start_main_~y~0] 6#L20true [38] L20-->L20-2: Formula: (and (< v_ULTIMATE.start_main_~x~0_6 v_ULTIMATE.start_main_~y~0_6) (= v_ULTIMATE.start_main_~min~0_4 v_ULTIMATE.start_main_~x~0_6)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_~min~0=v_ULTIMATE.start_main_~min~0_4, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~min~0] 4#L20-2true [2020-06-22 11:39:41,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 11:39:41,360 INFO L82 PathProgramCache]: Analyzing trace with hash 1900, now seen corresponding path program 1 times [2020-06-22 11:39:41,362 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 11:39:41,363 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 11:39:41,423 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:39:41,423 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 11:39:41,424 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:39:41,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:39:41,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:39:41,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 11:39:41,476 INFO L82 PathProgramCache]: Analyzing trace with hash 2022, now seen corresponding path program 1 times [2020-06-22 11:39:41,476 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 11:39:41,477 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 11:39:41,478 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:39:41,478 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 11:39:41,479 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:39:41,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:39:41,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:39:41,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 11:39:41,489 INFO L82 PathProgramCache]: Analyzing trace with hash 1826961, now seen corresponding path program 1 times [2020-06-22 11:39:41,490 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 11:39:41,490 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 11:39:41,491 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:39:41,491 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 11:39:41,491 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:39:41,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:39:41,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:39:41,578 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 11:39:41,579 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 11:39:41,579 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 11:39:41,579 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 11:39:41,580 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 11:39:41,580 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 11:39:41,580 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 11:39:41,580 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 11:39:41,580 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 11:39:41,580 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 11:39:41,581 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 11:39:41,601 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 11:39:41,611 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 11:39:41,617 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 11:39:41,631 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 11:39:41,748 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 11:39:41,749 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 11:39:41,757 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 11:39:41,757 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 11:39:41,791 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 11:39:41,791 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 11:39:41,798 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 11:39:41,798 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 11:39:41,826 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 11:39:41,826 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 11:39:41,832 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 11:39:41,832 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 11:39:41,865 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 11:39:41,865 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 11:39:42,526 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 11:39:42,529 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 11:39:42,529 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 11:39:42,530 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 11:39:42,530 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 11:39:42,530 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 11:39:42,530 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 11:39:42,530 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 11:39:42,530 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 11:39:42,530 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 11:39:42,531 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 11:39:42,531 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 11:39:42,533 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 11:39:42,537 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 11:39:42,540 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 11:39:42,551 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 11:39:42,621 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 11:39:42,627 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 11:39:42,630 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 11:39:42,631 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 11:39:42,632 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 11:39:42,632 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 11:39:42,632 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 11:39:42,636 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 11:39:42,636 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 11:39:42,645 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 11:39:42,645 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 11:39:42,646 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 11:39:42,646 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 11:39:42,646 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 11:39:42,646 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 11:39:42,649 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 11:39:42,649 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 11:39:42,656 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 11:39:42,657 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 11:39:42,658 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 11:39:42,658 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 11:39:42,658 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 11:39:42,659 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 11:39:42,659 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 11:39:42,660 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 11:39:42,660 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 11:39:42,669 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 11:39:42,680 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 11:39:42,680 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2020-06-22 11:39:42,682 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 11:39:42,682 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 11:39:42,683 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 11:39:42,683 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~min~0, ULTIMATE.start_main_~y~0) = 2*ULTIMATE.start_main_~min~0 - 2*ULTIMATE.start_main_~y~0 + 1 Supporting invariants [] [2020-06-22 11:39:42,685 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 11:39:42,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 11:39:42,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 11:39:42,729 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 11:39:42,730 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 11:39:42,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 11:39:42,743 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjunts are in the unsatisfiable core [2020-06-22 11:39:42,744 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 11:39:42,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 11:39:42,784 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-06-22 11:39:42,789 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-06-22 11:39:42,790 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 4 states. Second operand 3 states. [2020-06-22 11:39:42,822 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 4 states.. Second operand 3 states. Result 7 states and 10 transitions. Complement of second has 2 states. [2020-06-22 11:39:42,822 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2020-06-22 11:39:42,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-06-22 11:39:42,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 8 transitions. [2020-06-22 11:39:42,826 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 8 transitions. Stem has 2 letters. Loop has 2 letters. [2020-06-22 11:39:42,827 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 11:39:42,828 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-06-22 11:39:42,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 11:39:42,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 11:39:42,857 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 11:39:42,857 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 11:39:42,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 11:39:42,863 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjunts are in the unsatisfiable core [2020-06-22 11:39:42,864 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 11:39:42,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 11:39:42,879 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2020-06-22 11:39:42,879 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 4 states. Second operand 3 states. [2020-06-22 11:39:42,915 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 4 states.. Second operand 3 states. Result 11 states and 16 transitions. Complement of second has 4 states. [2020-06-22 11:39:42,916 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-06-22 11:39:42,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-06-22 11:39:42,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2020-06-22 11:39:42,917 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 2 letters. Loop has 2 letters. [2020-06-22 11:39:42,918 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 11:39:42,918 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 4 letters. Loop has 2 letters. [2020-06-22 11:39:42,918 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 11:39:42,918 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 2 letters. Loop has 4 letters. [2020-06-22 11:39:42,918 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 11:39:42,924 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 16 transitions. [2020-06-22 11:39:42,925 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-06-22 11:39:42,929 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 11 states and 16 transitions. [2020-06-22 11:39:42,930 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2020-06-22 11:39:42,931 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2020-06-22 11:39:42,931 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 16 transitions. [2020-06-22 11:39:42,931 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 11:39:42,932 INFO L706 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2020-06-22 11:39:42,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 16 transitions. [2020-06-22 11:39:42,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2020-06-22 11:39:42,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-06-22 11:39:42,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 15 transitions. [2020-06-22 11:39:42,961 INFO L729 BuchiCegarLoop]: Abstraction has 10 states and 15 transitions. [2020-06-22 11:39:42,961 INFO L609 BuchiCegarLoop]: Abstraction has 10 states and 15 transitions. [2020-06-22 11:39:42,961 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2020-06-22 11:39:42,961 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 15 transitions. [2020-06-22 11:39:42,962 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-06-22 11:39:42,962 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 11:39:42,962 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 11:39:42,963 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 11:39:42,963 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 11:39:42,963 INFO L794 eck$LassoCheckResult]: Stem: 72#ULTIMATE.startENTRY [29] ULTIMATE.startENTRY-->L14: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~res~0_1 0) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~res~0=v_ULTIMATE.start_main_~res~0_1, ULTIMATE.start_main_~min~0=v_ULTIMATE.start_main_~min~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~res~0, ULTIMATE.start_main_~min~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 73#L14 [36] L14-->L20-2: Formula: (and (< v_ULTIMATE.start_main_~x~0_7 v_ULTIMATE.start_main_~y~0_7) (= v_ULTIMATE.start_main_~min~0_5 v_ULTIMATE.start_main_~x~0_7)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~min~0=v_ULTIMATE.start_main_~min~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~min~0] 78#L20-2 [2020-06-22 11:39:42,963 INFO L796 eck$LassoCheckResult]: Loop: 78#L20-2 [33] L20-2-->L20: Formula: (and (= v_ULTIMATE.start_main_~y~0_11 (+ v_ULTIMATE.start_main_~y~0_12 1)) (= v_ULTIMATE.start_main_~min~0_9 v_ULTIMATE.start_main_~y~0_12) (= v_ULTIMATE.start_main_~res~0_6 (+ v_ULTIMATE.start_main_~res~0_7 1))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12, ULTIMATE.start_main_~res~0=v_ULTIMATE.start_main_~res~0_7, ULTIMATE.start_main_~min~0=v_ULTIMATE.start_main_~min~0_9} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~res~0=v_ULTIMATE.start_main_~res~0_6, ULTIMATE.start_main_~min~0=v_ULTIMATE.start_main_~min~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~res~0, ULTIMATE.start_main_~y~0] 81#L20 [38] L20-->L20-2: Formula: (and (< v_ULTIMATE.start_main_~x~0_6 v_ULTIMATE.start_main_~y~0_6) (= v_ULTIMATE.start_main_~min~0_4 v_ULTIMATE.start_main_~x~0_6)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_~min~0=v_ULTIMATE.start_main_~min~0_4, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~min~0] 78#L20-2 [2020-06-22 11:39:42,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 11:39:42,964 INFO L82 PathProgramCache]: Analyzing trace with hash 1896, now seen corresponding path program 1 times [2020-06-22 11:39:42,964 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 11:39:42,964 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 11:39:42,966 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:39:42,966 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 11:39:42,966 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:39:42,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:39:42,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:39:42,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 11:39:42,972 INFO L82 PathProgramCache]: Analyzing trace with hash 2022, now seen corresponding path program 2 times [2020-06-22 11:39:42,973 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 11:39:42,973 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 11:39:42,974 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:39:42,974 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 11:39:42,974 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:39:42,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:39:42,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:39:42,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 11:39:42,981 INFO L82 PathProgramCache]: Analyzing trace with hash 1823117, now seen corresponding path program 1 times [2020-06-22 11:39:42,981 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 11:39:42,981 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 11:39:42,982 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:39:42,982 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 11:39:42,982 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:39:42,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 11:39:43,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 11:39:43,053 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 11:39:43,053 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-06-22 11:39:43,078 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 11:39:43,078 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 11:39:43,078 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 11:39:43,078 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 11:39:43,078 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 11:39:43,079 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 11:39:43,079 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 11:39:43,079 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 11:39:43,079 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 11:39:43,079 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 11:39:43,079 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 11:39:43,081 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 11:39:43,085 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 11:39:43,088 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 11:39:43,123 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 11:39:43,199 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 11:39:43,199 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 11:39:43,207 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 11:39:43,207 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 11:39:43,235 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 11:39:43,236 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 11:39:43,242 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 11:39:43,242 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 11:39:43,271 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 11:39:43,271 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/sandbox/solver/bin/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 11:39:43,277 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 11:39:43,277 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 11:39:43,313 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 11:39:43,314 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 11:39:44,095 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 11:39:44,098 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 11:39:44,099 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 11:39:44,099 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 11:39:44,099 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 11:39:44,099 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 11:39:44,099 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 11:39:44,099 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 11:39:44,099 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 11:39:44,099 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 11:39:44,100 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 11:39:44,100 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 11:39:44,101 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 11:39:44,105 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 11:39:44,107 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 11:39:44,116 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 11:39:44,175 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 11:39:44,176 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 11:39:44,176 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 11:39:44,177 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 11:39:44,177 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 11:39:44,177 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 11:39:44,177 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 11:39:44,179 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 11:39:44,180 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 11:39:44,184 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 11:39:44,184 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 11:39:44,184 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 11:39:44,185 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 11:39:44,185 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 11:39:44,185 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 11:39:44,187 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 11:39:44,187 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 11:39:44,192 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 11:39:44,192 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 11:39:44,193 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 11:39:44,193 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 11:39:44,193 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 11:39:44,193 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 11:39:44,194 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 11:39:44,195 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 11:39:44,195 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 11:39:44,201 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 11:39:44,206 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 11:39:44,206 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2020-06-22 11:39:44,206 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 11:39:44,206 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 11:39:44,207 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 11:39:44,207 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~min~0) = -2*ULTIMATE.start_main_~y~0 + 2*ULTIMATE.start_main_~min~0 + 1 Supporting invariants [] [2020-06-22 11:39:44,207 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 11:39:44,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 11:39:44,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 11:39:44,228 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 11:39:44,229 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 11:39:44,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 11:39:44,234 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjunts are in the unsatisfiable core [2020-06-22 11:39:44,235 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 11:39:44,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 11:39:44,252 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-06-22 11:39:44,252 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-06-22 11:39:44,253 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 10 states and 15 transitions. cyclomatic complexity: 8 Second operand 3 states. [2020-06-22 11:39:44,274 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 10 states and 15 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 13 states and 19 transitions. Complement of second has 2 states. [2020-06-22 11:39:44,274 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2020-06-22 11:39:44,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-06-22 11:39:44,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 8 transitions. [2020-06-22 11:39:44,275 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 8 transitions. Stem has 2 letters. Loop has 2 letters. [2020-06-22 11:39:44,276 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 11:39:44,276 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-06-22 11:39:44,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 11:39:44,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 11:39:44,303 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 11:39:44,303 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 11:39:44,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 11:39:44,309 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjunts are in the unsatisfiable core [2020-06-22 11:39:44,310 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 11:39:44,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 11:39:44,336 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2020-06-22 11:39:44,336 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 10 states and 15 transitions. cyclomatic complexity: 8 Second operand 3 states. [2020-06-22 11:39:44,374 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 10 states and 15 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 15 states and 22 transitions. Complement of second has 4 states. [2020-06-22 11:39:44,374 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-06-22 11:39:44,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-06-22 11:39:44,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2020-06-22 11:39:44,375 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 2 letters. Loop has 2 letters. [2020-06-22 11:39:44,375 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 11:39:44,375 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 4 letters. Loop has 2 letters. [2020-06-22 11:39:44,376 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 11:39:44,376 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 2 letters. Loop has 4 letters. [2020-06-22 11:39:44,376 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 11:39:44,377 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 22 transitions. [2020-06-22 11:39:44,378 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-06-22 11:39:44,379 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 15 states and 22 transitions. [2020-06-22 11:39:44,379 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2020-06-22 11:39:44,379 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2020-06-22 11:39:44,379 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 22 transitions. [2020-06-22 11:39:44,379 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 11:39:44,379 INFO L706 BuchiCegarLoop]: Abstraction has 15 states and 22 transitions. [2020-06-22 11:39:44,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 22 transitions. [2020-06-22 11:39:44,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 8. [2020-06-22 11:39:44,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-06-22 11:39:44,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 12 transitions. [2020-06-22 11:39:44,381 INFO L729 BuchiCegarLoop]: Abstraction has 8 states and 12 transitions. [2020-06-22 11:39:44,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-06-22 11:39:44,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-06-22 11:39:44,384 INFO L87 Difference]: Start difference. First operand 8 states and 12 transitions. Second operand 3 states. [2020-06-22 11:39:44,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 11:39:44,396 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2020-06-22 11:39:44,397 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-06-22 11:39:44,398 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 10 transitions. [2020-06-22 11:39:44,398 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 11:39:44,399 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 5 states and 5 transitions. [2020-06-22 11:39:44,399 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2020-06-22 11:39:44,399 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2020-06-22 11:39:44,399 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 5 transitions. [2020-06-22 11:39:44,399 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 11:39:44,399 INFO L706 BuchiCegarLoop]: Abstraction has 5 states and 5 transitions. [2020-06-22 11:39:44,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states and 5 transitions. [2020-06-22 11:39:44,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 4. [2020-06-22 11:39:44,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-06-22 11:39:44,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 4 transitions. [2020-06-22 11:39:44,401 INFO L729 BuchiCegarLoop]: Abstraction has 4 states and 4 transitions. [2020-06-22 11:39:44,401 INFO L609 BuchiCegarLoop]: Abstraction has 4 states and 4 transitions. [2020-06-22 11:39:44,401 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2020-06-22 11:39:44,401 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states and 4 transitions. [2020-06-22 11:39:44,401 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 11:39:44,401 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 11:39:44,401 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 11:39:44,402 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 11:39:44,402 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 11:39:44,402 INFO L794 eck$LassoCheckResult]: Stem: 175#ULTIMATE.startENTRY [29] ULTIMATE.startENTRY-->L14: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~res~0_1 0) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~res~0=v_ULTIMATE.start_main_~res~0_1, ULTIMATE.start_main_~min~0=v_ULTIMATE.start_main_~min~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~res~0, ULTIMATE.start_main_~min~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 176#L14 [40] L14-->L20-2: Formula: (and (>= v_ULTIMATE.start_main_~x~0_9 v_ULTIMATE.start_main_~y~0_9) (= v_ULTIMATE.start_main_~min~0_7 v_ULTIMATE.start_main_~y~0_9)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~min~0=v_ULTIMATE.start_main_~min~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~min~0] 177#L20-2 [2020-06-22 11:39:44,402 INFO L796 eck$LassoCheckResult]: Loop: 177#L20-2 [33] L20-2-->L20: Formula: (and (= v_ULTIMATE.start_main_~y~0_11 (+ v_ULTIMATE.start_main_~y~0_12 1)) (= v_ULTIMATE.start_main_~min~0_9 v_ULTIMATE.start_main_~y~0_12) (= v_ULTIMATE.start_main_~res~0_6 (+ v_ULTIMATE.start_main_~res~0_7 1))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12, ULTIMATE.start_main_~res~0=v_ULTIMATE.start_main_~res~0_7, ULTIMATE.start_main_~min~0=v_ULTIMATE.start_main_~min~0_9} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~res~0=v_ULTIMATE.start_main_~res~0_6, ULTIMATE.start_main_~min~0=v_ULTIMATE.start_main_~min~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~res~0, ULTIMATE.start_main_~y~0] 178#L20 [42] L20-->L20-2: Formula: (and (= v_ULTIMATE.start_main_~min~0_6 v_ULTIMATE.start_main_~y~0_8) (>= v_ULTIMATE.start_main_~x~0_8 v_ULTIMATE.start_main_~y~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~min~0=v_ULTIMATE.start_main_~min~0_6, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~min~0] 177#L20-2 [2020-06-22 11:39:44,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 11:39:44,403 INFO L82 PathProgramCache]: Analyzing trace with hash 1900, now seen corresponding path program 2 times [2020-06-22 11:39:44,403 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 11:39:44,403 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 11:39:44,404 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:39:44,404 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 11:39:44,404 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:39:44,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:39:44,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:39:44,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 11:39:44,411 INFO L82 PathProgramCache]: Analyzing trace with hash 2026, now seen corresponding path program 1 times [2020-06-22 11:39:44,411 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 11:39:44,411 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 11:39:44,412 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:39:44,412 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 11:39:44,412 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:39:44,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:39:44,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:39:44,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 11:39:44,418 INFO L82 PathProgramCache]: Analyzing trace with hash 1826965, now seen corresponding path program 1 times [2020-06-22 11:39:44,418 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 11:39:44,418 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 11:39:44,419 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:39:44,419 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 11:39:44,419 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:39:44,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:39:44,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:39:44,446 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 11:39:44,446 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 11:39:44,446 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 11:39:44,446 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 11:39:44,446 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 11:39:44,447 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 11:39:44,447 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 11:39:44,447 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 11:39:44,447 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-06-22 11:39:44,447 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 11:39:44,447 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 11:39:44,448 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 11:39:44,452 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 11:39:44,462 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 11:39:44,464 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 11:39:44,528 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 11:39:44,528 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 11:39:44,534 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 11:39:44,534 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 11:39:44,564 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 11:39:44,565 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 11:39:44,582 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 11:39:44,582 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~res~0=0} Honda state: {ULTIMATE.start_main_~res~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~res~0=7}, {ULTIMATE.start_main_~res~0=-7}, {ULTIMATE.start_main_~res~0=1}] Lambdas: [2, 1, 1] Nus: [1, 0] No working directory specified, using /export/starexec/sandbox/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 11:39:44,628 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 11:39:44,628 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/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 11:39:44,658 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 11:39:44,658 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 11:39:45,184 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 11:39:45,187 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 11:39:45,187 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 11:39:45,187 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 11:39:45,187 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 11:39:45,187 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 11:39:45,187 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 11:39:45,187 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 11:39:45,188 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 11:39:45,188 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-06-22 11:39:45,188 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 11:39:45,188 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 11:39:45,189 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 11:39:45,193 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 11:39:45,202 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 11:39:45,204 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 11:39:45,254 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 11:39:45,254 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 11:39:45,255 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 11:39:45,255 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 11:39:45,256 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 11:39:45,256 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 11:39:45,256 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 11:39:45,256 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 11:39:45,256 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 11:39:45,257 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 11:39:45,259 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 11:39:45,260 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 11:39:45,260 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 11:39:45,260 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 11:39:45,260 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 11:39:45,260 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 11:39:45,260 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 11:39:45,261 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 11:39:45,261 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 11:39:45,266 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 11:39:45,273 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-06-22 11:39:45,273 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 11:39:45,273 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 11:39:45,273 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 11:39:45,274 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 11:39:45,274 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0) = -1*ULTIMATE.start_main_~y~0 + 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2020-06-22 11:39:45,274 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 11:39:45,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 11:39:45,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 11:39:45,290 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 11:39:45,290 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 11:39:45,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 11:39:45,294 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 11:39:45,295 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 11:39:45,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 11:39:45,303 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-06-22 11:39:45,303 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-06-22 11:39:45,303 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 4 states and 4 transitions. cyclomatic complexity: 1 Second operand 3 states. [2020-06-22 11:39:45,317 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 4 states and 4 transitions. cyclomatic complexity: 1. Second operand 3 states. Result 6 states and 7 transitions. Complement of second has 4 states. [2020-06-22 11:39:45,317 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-06-22 11:39:45,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-06-22 11:39:45,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2020-06-22 11:39:45,318 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 2 letters. Loop has 2 letters. [2020-06-22 11:39:45,318 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 11:39:45,318 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 2 letters. [2020-06-22 11:39:45,318 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 11:39:45,319 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 2 letters. Loop has 4 letters. [2020-06-22 11:39:45,319 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 11:39:45,320 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 6 states and 7 transitions. [2020-06-22 11:39:45,320 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 11:39:45,320 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 6 states to 0 states and 0 transitions. [2020-06-22 11:39:45,321 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-06-22 11:39:45,321 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-06-22 11:39:45,321 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-06-22 11:39:45,321 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 11:39:45,321 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 11:39:45,321 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 11:39:45,321 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 11:39:45,321 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2020-06-22 11:39:45,321 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-06-22 11:39:45,322 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 11:39:45,322 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-06-22 11:39:45,327 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 11:39:45 BasicIcfg [2020-06-22 11:39:45,328 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-22 11:39:45,328 INFO L168 Benchmark]: Toolchain (without parser) took 4767.71 ms. Allocated memory was 514.9 MB in the beginning and 589.3 MB in the end (delta: 74.4 MB). Free memory was 437.1 MB in the beginning and 420.2 MB in the end (delta: 16.9 MB). Peak memory consumption was 91.3 MB. Max. memory is 50.3 GB. [2020-06-22 11:39:45,330 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 514.9 MB. Free memory is still 457.0 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 11:39:45,330 INFO L168 Benchmark]: CACSL2BoogieTranslator took 285.31 ms. Allocated memory was 514.9 MB in the beginning and 562.6 MB in the end (delta: 47.7 MB). Free memory was 437.1 MB in the beginning and 534.6 MB in the end (delta: -97.5 MB). Peak memory consumption was 30.7 MB. Max. memory is 50.3 GB. [2020-06-22 11:39:45,331 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.81 ms. Allocated memory is still 562.6 MB. Free memory was 534.6 MB in the beginning and 532.2 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 50.3 GB. [2020-06-22 11:39:45,331 INFO L168 Benchmark]: Boogie Preprocessor took 18.83 ms. Allocated memory is still 562.6 MB. Free memory was 532.2 MB in the beginning and 531.4 MB in the end (delta: 846.8 kB). Peak memory consumption was 846.8 kB. Max. memory is 50.3 GB. [2020-06-22 11:39:45,332 INFO L168 Benchmark]: RCFGBuilder took 197.33 ms. Allocated memory is still 562.6 MB. Free memory was 531.4 MB in the beginning and 519.9 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 50.3 GB. [2020-06-22 11:39:45,332 INFO L168 Benchmark]: BlockEncodingV2 took 75.11 ms. Allocated memory is still 562.6 MB. Free memory was 519.9 MB in the beginning and 515.7 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 50.3 GB. [2020-06-22 11:39:45,333 INFO L168 Benchmark]: TraceAbstraction took 102.63 ms. Allocated memory is still 562.6 MB. Free memory was 514.8 MB in the beginning and 508.0 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 50.3 GB. [2020-06-22 11:39:45,333 INFO L168 Benchmark]: BuchiAutomizer took 4048.31 ms. Allocated memory was 562.6 MB in the beginning and 589.3 MB in the end (delta: 26.7 MB). Free memory was 508.0 MB in the beginning and 420.2 MB in the end (delta: 87.8 MB). Peak memory consumption was 114.6 MB. Max. memory is 50.3 GB. [2020-06-22 11:39:45,338 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 8 locations, 11 edges - StatisticsResult: Encoded RCFG 4 locations, 6 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 514.9 MB. Free memory is still 457.0 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 285.31 ms. Allocated memory was 514.9 MB in the beginning and 562.6 MB in the end (delta: 47.7 MB). Free memory was 437.1 MB in the beginning and 534.6 MB in the end (delta: -97.5 MB). Peak memory consumption was 30.7 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 34.81 ms. Allocated memory is still 562.6 MB. Free memory was 534.6 MB in the beginning and 532.2 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 18.83 ms. Allocated memory is still 562.6 MB. Free memory was 532.2 MB in the beginning and 531.4 MB in the end (delta: 846.8 kB). Peak memory consumption was 846.8 kB. Max. memory is 50.3 GB. * RCFGBuilder took 197.33 ms. Allocated memory is still 562.6 MB. Free memory was 531.4 MB in the beginning and 519.9 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 75.11 ms. Allocated memory is still 562.6 MB. Free memory was 519.9 MB in the beginning and 515.7 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 50.3 GB. * TraceAbstraction took 102.63 ms. Allocated memory is still 562.6 MB. Free memory was 514.8 MB in the beginning and 508.0 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 4048.31 ms. Allocated memory was 562.6 MB in the beginning and 589.3 MB in the end (delta: 26.7 MB). Free memory was 508.0 MB in the beginning and 420.2 MB in the end (delta: 87.8 MB). Peak memory consumption was 114.6 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. - 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, 0 LocationsWithAnnotation, 0 PreInvPairs, 0 NumberOfFragments, 0 HoareAnnotationTreeSize, 0 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 0 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 (1 trivial, 0 deterministic, 3 nondeterministic). One nondeterministic module has affine ranking function 2 * min + -2 * y + 1 and consists of 3 locations. One nondeterministic module has affine ranking function -2 * y + 2 * min + 1 and consists of 3 locations. One nondeterministic module has affine ranking function -1 * y + x and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.0s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 3.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 9 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 [1, 2, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 22 SDtfs, 28 SDslu, 0 SDs, 0 SdLazy, 45 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital21 mio100 ax157 hnf100 lsp48 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq187 hnf90 smp100 dnf100 smp100 tf107 neg100 sie104 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 17ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 2.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-06-22 11:39:37.373 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox/tmp -i /export/starexec/sandbox/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-06-22 11:39:45.569 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check