YES Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-22 10:22:08,619 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-22 10:22:08,621 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-22 10:22:08,633 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-22 10:22:08,633 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-22 10:22:08,634 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-22 10:22:08,636 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-22 10:22:08,637 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-22 10:22:08,639 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-22 10:22:08,640 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-22 10:22:08,640 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-22 10:22:08,641 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-22 10:22:08,642 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-22 10:22:08,642 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-22 10:22:08,643 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-22 10:22:08,644 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-22 10:22:08,645 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-22 10:22:08,647 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-22 10:22:08,649 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-22 10:22:08,650 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-22 10:22:08,651 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-22 10:22:08,652 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-22 10:22:08,654 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-22 10:22:08,655 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-22 10:22:08,655 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-22 10:22:08,655 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-22 10:22:08,656 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-22 10:22:08,657 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-22 10:22:08,657 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-22 10:22:08,658 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-22 10:22:08,658 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-22 10:22:08,660 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-22 10:22:08,661 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-22 10:22:08,662 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-22 10:22:08,662 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-22 10:22:08,662 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-22 10:22:08,663 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-22 10:22:08,663 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-22 10:22:08,664 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-22 10:22:08,664 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-06-22 10:22:08,679 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-22 10:22:08,679 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-22 10:22:08,680 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-22 10:22:08,680 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-22 10:22:08,681 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-22 10:22:08,681 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-22 10:22:08,681 INFO L133 SettingsManager]: * Use SBE=true [2020-06-22 10:22:08,681 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-22 10:22:08,681 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-22 10:22:08,682 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-22 10:22:08,682 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-22 10:22:08,682 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-22 10:22:08,682 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-22 10:22:08,682 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-22 10:22:08,682 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 10:22:08,683 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-22 10:22:08,683 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-22 10:22:08,683 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-22 10:22:08,683 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-22 10:22:08,683 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-22 10:22:08,683 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-22 10:22:08,684 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-22 10:22:08,684 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-22 10:22:08,684 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-22 10:22:08,684 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 10:22:08,684 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-22 10:22:08,685 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-22 10:22:08,685 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-22 10:22:08,685 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-22 10:22:08,711 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-22 10:22:08,724 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-22 10:22:08,728 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-22 10:22:08,729 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-22 10:22:08,730 INFO L276 PluginConnector]: CDTParser initialized [2020-06-22 10:22:08,731 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 10:22:08,800 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/0d7dcde91da0439a91daa9e16386e362/FLAG9a119c61e [2020-06-22 10:22:09,148 INFO L307 CDTParser]: Found 1 translation units. [2020-06-22 10:22:09,149 INFO L161 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 10:22:09,155 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/0d7dcde91da0439a91daa9e16386e362/FLAG9a119c61e [2020-06-22 10:22:09,540 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/0d7dcde91da0439a91daa9e16386e362 [2020-06-22 10:22:09,551 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-22 10:22:09,553 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-22 10:22:09,554 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-22 10:22:09,554 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-22 10:22:09,557 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-22 10:22:09,558 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 10:22:09" (1/1) ... [2020-06-22 10:22:09,562 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47069206 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 10:22:09, skipping insertion in model container [2020-06-22 10:22:09,562 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 10:22:09" (1/1) ... [2020-06-22 10:22:09,570 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-22 10:22:09,587 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-22 10:22:09,745 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 10:22:09,750 INFO L191 MainTranslator]: Completed pre-run [2020-06-22 10:22:09,768 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 10:22:09,849 INFO L195 MainTranslator]: Completed translation [2020-06-22 10:22:09,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 10:22:09 WrapperNode [2020-06-22 10:22:09,850 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-22 10:22:09,851 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-22 10:22:09,851 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-22 10:22:09,851 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-22 10:22:09,860 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 10:22:09" (1/1) ... [2020-06-22 10:22:09,866 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 10:22:09" (1/1) ... [2020-06-22 10:22:09,895 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-22 10:22:09,896 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-22 10:22:09,896 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-22 10:22:09,896 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-22 10:22:09,906 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 10:22:09" (1/1) ... [2020-06-22 10:22:09,906 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 10:22:09" (1/1) ... [2020-06-22 10:22:09,907 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 10:22:09" (1/1) ... [2020-06-22 10:22:09,907 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 10:22:09" (1/1) ... [2020-06-22 10:22:09,909 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 10:22:09" (1/1) ... [2020-06-22 10:22:09,914 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 10:22:09" (1/1) ... [2020-06-22 10:22:09,914 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 10:22:09" (1/1) ... [2020-06-22 10:22:09,916 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-22 10:22:09,916 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-22 10:22:09,916 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-22 10:22:09,916 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-22 10:22:09,918 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 10:22:09" (1/1) ... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 10:22:09,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-22 10:22:09,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-22 10:22:10,124 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-22 10:22:10,125 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. [2020-06-22 10:22:10,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 10:22:10 BoogieIcfgContainer [2020-06-22 10:22:10,126 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-22 10:22:10,127 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-22 10:22:10,127 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-22 10:22:10,129 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-22 10:22:10,130 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 10:22:10" (1/1) ... [2020-06-22 10:22:10,146 INFO L313 BlockEncoder]: Initial Icfg 8 locations, 11 edges [2020-06-22 10:22:10,148 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-22 10:22:10,148 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-22 10:22:10,149 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-22 10:22:10,149 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-22 10:22:10,151 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-22 10:22:10,152 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-22 10:22:10,152 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-22 10:22:10,169 INFO L185 BlockEncoder]: Using Use SBE [2020-06-22 10:22:10,185 INFO L200 BlockEncoder]: SBE split 2 edges [2020-06-22 10:22:10,190 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-06-22 10:22:10,192 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 10:22:10,203 INFO L100 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2020-06-22 10:22:10,206 INFO L70 RemoveSinkStates]: Removed 4 edges and 2 locations by removing sink states [2020-06-22 10:22:10,207 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 10:22:10,207 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 10:22:10,213 INFO L100 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2020-06-22 10:22:10,213 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 10:22:10,214 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 10:22:10,214 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 10:22:10,214 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-22 10:22:10,214 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 10:22:10,215 INFO L313 BlockEncoder]: Encoded RCFG 3 locations, 5 edges [2020-06-22 10:22:10,215 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 10:22:10 BasicIcfg [2020-06-22 10:22:10,215 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-22 10:22:10,216 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-22 10:22:10,216 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-22 10:22:10,220 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-22 10:22:10,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.06 10:22:09" (1/4) ... [2020-06-22 10:22:10,221 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47336b6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 10:22:10, skipping insertion in model container [2020-06-22 10:22:10,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 10:22:09" (2/4) ... [2020-06-22 10:22:10,222 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47336b6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 10:22:10, skipping insertion in model container [2020-06-22 10:22:10,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 10:22:10" (3/4) ... [2020-06-22 10:22:10,223 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47336b6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 10:22:10, skipping insertion in model container [2020-06-22 10:22:10,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 10:22:10" (4/4) ... [2020-06-22 10:22:10,225 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 10:22:10,235 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-22 10:22:10,243 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-06-22 10:22:10,260 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-06-22 10:22:10,288 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 10:22:10,289 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-22 10:22:10,289 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-22 10:22:10,289 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 10:22:10,289 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 10:22:10,290 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 10:22:10,290 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-22 10:22:10,290 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 10:22:10,290 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-22 10:22:10,304 INFO L276 IsEmpty]: Start isEmpty. Operand 3 states. [2020-06-22 10:22:10,310 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-06-22 10:22:10,313 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. [2020-06-22 10:22:10,362 INFO L451 ceAbstractionStarter]: At program point L19-2(lines 18 24) the Hoare annotation is: true [2020-06-22 10:22:10,362 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-06-22 10:22:10,362 INFO L448 ceAbstractionStarter]: For program point L19(lines 19 23) no Hoare annotation was computed. [2020-06-22 10:22:10,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 10:22:10 BasicIcfg [2020-06-22 10:22:10,370 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-22 10:22:10,371 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-22 10:22:10,371 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-22 10:22:10,374 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-22 10:22:10,375 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 10:22:10,375 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.06 10:22:09" (1/5) ... [2020-06-22 10:22:10,376 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3ba0777e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 10:22:10, skipping insertion in model container [2020-06-22 10:22:10,376 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 10:22:10,376 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 10:22:09" (2/5) ... [2020-06-22 10:22:10,377 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3ba0777e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 10:22:10, skipping insertion in model container [2020-06-22 10:22:10,377 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 10:22:10,377 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 10:22:10" (3/5) ... [2020-06-22 10:22:10,377 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3ba0777e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 10:22:10, skipping insertion in model container [2020-06-22 10:22:10,378 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 10:22:10,378 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 10:22:10" (4/5) ... [2020-06-22 10:22:10,378 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3ba0777e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 10:22:10, skipping insertion in model container [2020-06-22 10:22:10,378 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 10:22:10,378 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 10:22:10" (5/5) ... [2020-06-22 10:22:10,380 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 10:22:10,408 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 10:22:10,409 INFO L374 BuchiCegarLoop]: Interprodecural is true [2020-06-22 10:22:10,409 INFO L375 BuchiCegarLoop]: Hoare is true [2020-06-22 10:22:10,409 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 10:22:10,409 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 10:22:10,409 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 10:22:10,409 INFO L379 BuchiCegarLoop]: Difference is false [2020-06-22 10:22:10,409 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 10:22:10,410 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-06-22 10:22:10,413 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-06-22 10:22:10,431 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 10:22:10,432 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 10:22:10,432 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 10:22:10,437 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 10:22:10,438 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 10:22:10,438 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2020-06-22 10:22:10,438 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-06-22 10:22:10,438 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 10:22:10,439 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 10:22:10,439 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 10:22:10,439 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 10:22:10,439 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 10:22:10,444 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [50] ULTIMATE.startENTRY-->L19-2: Formula: (and (<= 0 v_ULTIMATE.start_main_~y~0_13) (<= 0 v_ULTIMATE.start_main_~x~0_13)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_6|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_13, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_13} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 4#L19-2true [2020-06-22 10:22:10,445 INFO L796 eck$LassoCheckResult]: Loop: 4#L19-2true [46] L19-2-->L19: Formula: (< (+ v_ULTIMATE.start_main_~x~0_12 2) v_ULTIMATE.start_main_~y~0_12) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12} AuxVars[] AssignedVars[] 5#L19true [38] L19-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_1 (+ v_ULTIMATE.start_main_~x~0_2 1)) (< v_ULTIMATE.start_main_~x~0_2 v_ULTIMATE.start_main_~y~0_1)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_2} OutVars{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[] AssignedVars[ULTIMATE.start_main_~x~0] 4#L19-2true [2020-06-22 10:22:10,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 10:22:10,451 INFO L82 PathProgramCache]: Analyzing trace with hash 81, now seen corresponding path program 1 times [2020-06-22 10:22:10,453 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 10:22:10,453 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 10:22:10,481 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 10:22:10,482 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 10:22:10,482 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 10:22:10,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 10:22:10,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 10:22:10,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 10:22:10,524 INFO L82 PathProgramCache]: Analyzing trace with hash 2425, now seen corresponding path program 1 times [2020-06-22 10:22:10,524 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 10:22:10,524 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 10:22:10,526 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 10:22:10,526 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 10:22:10,526 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 10:22:10,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 10:22:10,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 10:22:10,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 10:22:10,539 INFO L82 PathProgramCache]: Analyzing trace with hash 79305, now seen corresponding path program 1 times [2020-06-22 10:22:10,539 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 10:22:10,540 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 10:22:10,541 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 10:22:10,541 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 10:22:10,541 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 10:22:10,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 10:22:10,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 10:22:10,602 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 10:22:10,603 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 10:22:10,603 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 10:22:10,603 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 10:22:10,604 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 10:22:10,604 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 10:22:10,604 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 10:22:10,604 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 10:22:10,604 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 10:22:10,604 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 10:22:10,605 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 10:22:10,624 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 10:22:10,634 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 10:22:10,638 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 10:22:10,712 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 10:22:10,713 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 10:22:10,723 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 10:22:10,723 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 10:22:10,758 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 10:22:10,758 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 10:22:10,764 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 10:22:10,764 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 10:22:10,791 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 10:22:10,791 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 10:22:10,797 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 10:22:10,798 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 10:22:10,830 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 10:22:10,830 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 10:22:10,985 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 10:22:10,988 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 10:22:10,988 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 10:22:10,988 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 10:22:10,988 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 10:22:10,989 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 10:22:10,989 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 10:22:10,989 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 10:22:10,989 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 10:22:10,989 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 10:22:10,989 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 10:22:10,989 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 10:22:10,991 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 10:22:10,996 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 10:22:11,004 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 10:22:11,068 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 10:22:11,074 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 10:22:11,076 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 10:22:11,077 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 10:22:11,078 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 10:22:11,078 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 10:22:11,078 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 10:22:11,083 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 10:22:11,083 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 10:22:11,090 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 10:22:11,091 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 10:22:11,092 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 10:22:11,092 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 10:22:11,092 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 10:22:11,093 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 10:22:11,093 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 10:22:11,094 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 10:22:11,094 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 10:22:11,100 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 10:22:11,110 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-06-22 10:22:11,110 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 10:22:11,112 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 10:22:11,112 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 10:22:11,112 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 10:22:11,113 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 10:22:11,114 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 10:22:11,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 10:22:11,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 10:22:11,167 WARN L254 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 10:22:11,168 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 10:22:11,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 10:22:11,179 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 10:22:11,180 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 10:22:11,183 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 10:22:11,195 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization [2020-06-22 10:22:11,200 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2020-06-22 10:22:11,201 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 3 states. Second operand 3 states. [2020-06-22 10:22:11,239 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 3 states.. Second operand 3 states. Result 7 states and 15 transitions. Complement of second has 4 states. [2020-06-22 10:22:11,240 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 10:22:11,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-06-22 10:22:11,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2020-06-22 10:22:11,244 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 1 letters. Loop has 2 letters. [2020-06-22 10:22:11,245 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 10:22:11,246 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 3 letters. Loop has 2 letters. [2020-06-22 10:22:11,246 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 10:22:11,246 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 1 letters. Loop has 4 letters. [2020-06-22 10:22:11,246 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 10:22:11,252 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7 states and 15 transitions. [2020-06-22 10:22:11,253 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 10:22:11,258 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7 states to 7 states and 15 transitions. [2020-06-22 10:22:11,259 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2020-06-22 10:22:11,259 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2020-06-22 10:22:11,260 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 15 transitions. [2020-06-22 10:22:11,260 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 10:22:11,260 INFO L706 BuchiCegarLoop]: Abstraction has 7 states and 15 transitions. [2020-06-22 10:22:11,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 15 transitions. [2020-06-22 10:22:11,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2020-06-22 10:22:11,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-06-22 10:22:11,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 15 transitions. [2020-06-22 10:22:11,289 INFO L729 BuchiCegarLoop]: Abstraction has 7 states and 15 transitions. [2020-06-22 10:22:11,289 INFO L609 BuchiCegarLoop]: Abstraction has 7 states and 15 transitions. [2020-06-22 10:22:11,289 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2020-06-22 10:22:11,290 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 15 transitions. [2020-06-22 10:22:11,290 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 10:22:11,290 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 10:22:11,291 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 10:22:11,291 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-06-22 10:22:11,291 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 10:22:11,291 INFO L794 eck$LassoCheckResult]: Stem: 41#ULTIMATE.startENTRY [50] ULTIMATE.startENTRY-->L19-2: Formula: (and (<= 0 v_ULTIMATE.start_main_~y~0_13) (<= 0 v_ULTIMATE.start_main_~x~0_13)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_6|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_13, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_13} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 42#L19-2 [47] L19-2-->L19: Formula: (< (+ v_ULTIMATE.start_main_~y~0_12 2) v_ULTIMATE.start_main_~x~0_12) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12} AuxVars[] AssignedVars[] 47#L19 [43] L19-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_7 (+ v_ULTIMATE.start_main_~y~0_8 1)) (>= v_ULTIMATE.start_main_~x~0_8 v_ULTIMATE.start_main_~y~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0] 43#L19-2 [2020-06-22 10:22:11,292 INFO L796 eck$LassoCheckResult]: Loop: 43#L19-2 [46] L19-2-->L19: Formula: (< (+ v_ULTIMATE.start_main_~x~0_12 2) v_ULTIMATE.start_main_~y~0_12) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12} AuxVars[] AssignedVars[] 44#L19 [38] L19-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_1 (+ v_ULTIMATE.start_main_~x~0_2 1)) (< v_ULTIMATE.start_main_~x~0_2 v_ULTIMATE.start_main_~y~0_1)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_2} OutVars{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[] AssignedVars[ULTIMATE.start_main_~x~0] 43#L19-2 [2020-06-22 10:22:11,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 10:22:11,292 INFO L82 PathProgramCache]: Analyzing trace with hash 79341, now seen corresponding path program 1 times [2020-06-22 10:22:11,292 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 10:22:11,292 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 10:22:11,294 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 10:22:11,294 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 10:22:11,294 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 10:22:11,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 10:22:11,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 10:22:11,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 10:22:11,301 INFO L82 PathProgramCache]: Analyzing trace with hash 2425, now seen corresponding path program 2 times [2020-06-22 10:22:11,301 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 10:22:11,301 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 10:22:11,302 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 10:22:11,303 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 10:22:11,303 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 10:22:11,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 10:22:11,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 10:22:11,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 10:22:11,308 INFO L82 PathProgramCache]: Analyzing trace with hash 76248165, now seen corresponding path program 1 times [2020-06-22 10:22:11,308 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 10:22:11,308 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 10:22:11,309 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 10:22:11,309 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 10:22:11,309 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 10:22:11,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 10:22:11,353 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 10:22:11,355 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 10:22:11,355 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-06-22 10:22:11,374 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 10:22:11,374 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 10:22:11,374 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 10:22:11,375 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 10:22:11,375 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 10:22:11,375 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 10:22:11,375 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 10:22:11,375 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 10:22:11,375 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 10:22:11,375 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 10:22:11,375 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 10:22:11,377 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 10:22:11,380 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 10:22:11,383 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 10:22:11,427 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 10:22:11,427 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 10:22:11,430 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 10:22:11,430 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 10:22:11,458 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 10:22:11,459 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 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 10:22:11,463 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 10:22:11,464 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 10:22:11,491 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 10:22:11,491 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 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 10:22:11,496 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 10:22:11,497 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 10:22:11,527 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 10:22:11,527 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 10:22:11,715 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 10:22:11,717 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 10:22:11,717 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 10:22:11,718 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 10:22:11,718 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 10:22:11,718 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 10:22:11,718 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 10:22:11,718 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 10:22:11,718 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 10:22:11,718 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 10:22:11,718 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 10:22:11,718 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 10:22:11,720 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 10:22:11,724 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 10:22:11,730 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 10:22:11,786 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 10:22:11,786 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 10:22:11,787 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 10:22:11,788 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 10:22:11,788 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 10:22:11,788 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 10:22:11,788 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 10:22:11,790 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 10:22:11,791 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 10:22:11,795 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 10:22:11,796 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 10:22:11,796 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 10:22:11,797 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 10:22:11,797 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 10:22:11,797 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 10:22:11,797 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 10:22:11,798 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 10:22:11,798 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 10:22:11,803 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 10:22:11,807 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 10:22:11,807 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 10:22:11,808 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 10:22:11,808 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 10:22:11,808 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 10:22:11,808 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 10:22:11,808 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 10:22:11,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 10:22:11,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 10:22:11,832 INFO L256 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 10:22:11,832 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 10:22:11,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 10:22:11,842 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 10:22:11,842 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 10:22:11,843 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 10:22:11,843 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization [2020-06-22 10:22:11,843 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2020-06-22 10:22:11,844 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 7 states and 15 transitions. cyclomatic complexity: 10 Second operand 3 states. [2020-06-22 10:22:11,866 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 7 states and 15 transitions. cyclomatic complexity: 10. Second operand 3 states. Result 9 states and 21 transitions. Complement of second has 4 states. [2020-06-22 10:22:11,866 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 10:22:11,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-06-22 10:22:11,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2020-06-22 10:22:11,867 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 3 letters. Loop has 2 letters. [2020-06-22 10:22:11,868 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 10:22:11,868 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 2 letters. [2020-06-22 10:22:11,868 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 10:22:11,868 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 3 letters. Loop has 4 letters. [2020-06-22 10:22:11,869 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 10:22:11,870 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 21 transitions. [2020-06-22 10:22:11,871 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-06-22 10:22:11,872 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 9 states and 21 transitions. [2020-06-22 10:22:11,872 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2020-06-22 10:22:11,873 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2020-06-22 10:22:11,873 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 21 transitions. [2020-06-22 10:22:11,873 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 10:22:11,873 INFO L706 BuchiCegarLoop]: Abstraction has 9 states and 21 transitions. [2020-06-22 10:22:11,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 21 transitions. [2020-06-22 10:22:11,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 5. [2020-06-22 10:22:11,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-06-22 10:22:11,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 11 transitions. [2020-06-22 10:22:11,875 INFO L729 BuchiCegarLoop]: Abstraction has 5 states and 11 transitions. [2020-06-22 10:22:11,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-06-22 10:22:11,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-06-22 10:22:11,878 INFO L87 Difference]: Start difference. First operand 5 states and 11 transitions. Second operand 4 states. [2020-06-22 10:22:11,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 10:22:11,909 INFO L93 Difference]: Finished difference Result 8 states and 14 transitions. [2020-06-22 10:22:11,909 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-06-22 10:22:11,910 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 14 transitions. [2020-06-22 10:22:11,911 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-06-22 10:22:11,912 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 7 states and 11 transitions. [2020-06-22 10:22:11,912 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2020-06-22 10:22:11,912 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2020-06-22 10:22:11,913 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 11 transitions. [2020-06-22 10:22:11,913 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 10:22:11,913 INFO L706 BuchiCegarLoop]: Abstraction has 7 states and 11 transitions. [2020-06-22 10:22:11,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 11 transitions. [2020-06-22 10:22:11,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2020-06-22 10:22:11,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-06-22 10:22:11,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 11 transitions. [2020-06-22 10:22:11,915 INFO L729 BuchiCegarLoop]: Abstraction has 7 states and 11 transitions. [2020-06-22 10:22:11,915 INFO L609 BuchiCegarLoop]: Abstraction has 7 states and 11 transitions. [2020-06-22 10:22:11,915 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2020-06-22 10:22:11,915 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 11 transitions. [2020-06-22 10:22:11,916 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-06-22 10:22:11,916 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 10:22:11,916 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 10:22:11,916 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 10:22:11,916 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 10:22:11,916 INFO L794 eck$LassoCheckResult]: Stem: 106#ULTIMATE.startENTRY [50] ULTIMATE.startENTRY-->L19-2: Formula: (and (<= 0 v_ULTIMATE.start_main_~y~0_13) (<= 0 v_ULTIMATE.start_main_~x~0_13)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_6|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_13, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_13} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 107#L19-2 [2020-06-22 10:22:11,917 INFO L796 eck$LassoCheckResult]: Loop: 107#L19-2 [46] L19-2-->L19: Formula: (< (+ v_ULTIMATE.start_main_~x~0_12 2) v_ULTIMATE.start_main_~y~0_12) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12} AuxVars[] AssignedVars[] 111#L19 [43] L19-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_7 (+ v_ULTIMATE.start_main_~y~0_8 1)) (>= 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_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0] 107#L19-2 [2020-06-22 10:22:11,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 10:22:11,917 INFO L82 PathProgramCache]: Analyzing trace with hash 81, now seen corresponding path program 2 times [2020-06-22 10:22:11,917 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 10:22:11,917 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 10:22:11,919 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 10:22:11,919 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 10:22:11,919 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 10:22:11,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 10:22:11,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 10:22:11,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 10:22:11,923 INFO L82 PathProgramCache]: Analyzing trace with hash 2430, now seen corresponding path program 1 times [2020-06-22 10:22:11,923 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 10:22:11,923 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 10:22:11,925 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 10:22:11,925 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 10:22:11,925 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 10:22:11,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 10:22:11,934 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 10:22:11,934 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 10:22:11,935 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-06-22 10:22:11,935 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-06-22 10:22:11,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-06-22 10:22:11,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-06-22 10:22:11,935 INFO L87 Difference]: Start difference. First operand 7 states and 11 transitions. cyclomatic complexity: 6 Second operand 3 states. [2020-06-22 10:22:11,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 10:22:11,945 INFO L93 Difference]: Finished difference Result 7 states and 10 transitions. [2020-06-22 10:22:11,946 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-06-22 10:22:11,947 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7 states and 10 transitions. [2020-06-22 10:22:11,947 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 10:22:11,948 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7 states to 6 states and 8 transitions. [2020-06-22 10:22:11,948 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2020-06-22 10:22:11,948 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2020-06-22 10:22:11,948 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 8 transitions. [2020-06-22 10:22:11,948 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 10:22:11,949 INFO L706 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2020-06-22 10:22:11,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 8 transitions. [2020-06-22 10:22:11,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2020-06-22 10:22:11,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-06-22 10:22:11,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 8 transitions. [2020-06-22 10:22:11,950 INFO L729 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2020-06-22 10:22:11,951 INFO L609 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2020-06-22 10:22:11,951 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2020-06-22 10:22:11,951 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 8 transitions. [2020-06-22 10:22:11,951 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 10:22:11,951 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 10:22:11,951 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 10:22:11,952 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 10:22:11,952 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 10:22:11,952 INFO L794 eck$LassoCheckResult]: Stem: 126#ULTIMATE.startENTRY [50] ULTIMATE.startENTRY-->L19-2: Formula: (and (<= 0 v_ULTIMATE.start_main_~y~0_13) (<= 0 v_ULTIMATE.start_main_~x~0_13)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_6|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_13, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_13} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 127#L19-2 [47] L19-2-->L19: Formula: (< (+ v_ULTIMATE.start_main_~y~0_12 2) v_ULTIMATE.start_main_~x~0_12) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12} AuxVars[] AssignedVars[] 129#L19 [2020-06-22 10:22:11,952 INFO L796 eck$LassoCheckResult]: Loop: 129#L19 [43] L19-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_7 (+ v_ULTIMATE.start_main_~y~0_8 1)) (>= 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_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0] 128#L19-2 [47] L19-2-->L19: Formula: (< (+ v_ULTIMATE.start_main_~y~0_12 2) v_ULTIMATE.start_main_~x~0_12) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12} AuxVars[] AssignedVars[] 129#L19 [2020-06-22 10:22:11,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 10:22:11,952 INFO L82 PathProgramCache]: Analyzing trace with hash 2558, now seen corresponding path program 1 times [2020-06-22 10:22:11,953 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 10:22:11,953 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 10:22:11,954 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 10:22:11,954 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 10:22:11,954 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 10:22:11,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 10:22:11,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 10:22:11,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 10:22:11,959 INFO L82 PathProgramCache]: Analyzing trace with hash 2341, now seen corresponding path program 1 times [2020-06-22 10:22:11,959 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 10:22:11,959 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 10:22:11,960 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 10:22:11,960 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 10:22:11,961 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 10:22:11,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 10:22:11,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 10:22:11,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 10:22:11,966 INFO L82 PathProgramCache]: Analyzing trace with hash 2459618, now seen corresponding path program 2 times [2020-06-22 10:22:11,966 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 10:22:11,966 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 10:22:11,967 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 10:22:11,967 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 10:22:11,967 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 10:22:11,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 10:22:11,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 10:22:11,993 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 10:22:11,993 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 10:22:11,993 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 10:22:11,994 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 10:22:11,994 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 10:22:11,994 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 10:22:11,994 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 10:22:11,995 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 10:22:11,995 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2020-06-22 10:22:11,995 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 10:22:11,995 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 10:22:11,997 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 10:22:12,002 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 10:22:12,009 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 10:22:12,048 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 10:22:12,048 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 10:22:12,053 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 10:22:12,053 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 10:22:12,081 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 10:22:12,081 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 10:22:12,086 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 10:22:12,087 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 10:22:12,118 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 10:22:12,118 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 10:22:12,536 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 10:22:12,539 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 10:22:12,539 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 10:22:12,539 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 10:22:12,539 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 10:22:12,540 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 10:22:12,540 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 10:22:12,540 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 10:22:12,540 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 10:22:12,540 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2020-06-22 10:22:12,540 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 10:22:12,540 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 10:22:12,542 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 10:22:12,546 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 10:22:12,552 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 10:22:12,587 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 10:22:12,587 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 10:22:12,588 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 10:22:12,588 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 10:22:12,588 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 10:22:12,588 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 10:22:12,589 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 10:22:12,591 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 10:22:12,591 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 10:22:12,596 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 10:22:12,596 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 10:22:12,597 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 10:22:12,597 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 10:22:12,597 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 10:22:12,597 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 10:22:12,598 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 10:22:12,598 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 10:22:12,598 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 10:22:12,602 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 10:22:12,607 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-06-22 10:22:12,607 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 10:22:12,608 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 10:22:12,608 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 10:22:12,608 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 10:22:12,608 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 10:22:12,608 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 10:22:12,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 10:22:12,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 10:22:12,626 INFO L256 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 10:22:12,626 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 10:22:12,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 10:22:12,630 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 10:22:12,631 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 10:22:12,644 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 10:22:12,645 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-06-22 10:22:12,645 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 10:22:12,645 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 6 states and 8 transitions. cyclomatic complexity: 4 Second operand 3 states. [2020-06-22 10:22:12,656 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 6 states and 8 transitions. cyclomatic complexity: 4. Second operand 3 states. Result 8 states and 10 transitions. Complement of second has 4 states. [2020-06-22 10:22:12,656 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 10:22:12,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-06-22 10:22:12,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2020-06-22 10:22:12,657 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 2 letters. Loop has 2 letters. [2020-06-22 10:22:12,657 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 10:22:12,657 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 4 letters. Loop has 2 letters. [2020-06-22 10:22:12,658 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 10:22:12,658 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 2 letters. Loop has 4 letters. [2020-06-22 10:22:12,659 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 10:22:12,660 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 10 transitions. [2020-06-22 10:22:12,661 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 10:22:12,661 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 0 states and 0 transitions. [2020-06-22 10:22:12,661 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-06-22 10:22:12,661 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-06-22 10:22:12,661 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-06-22 10:22:12,661 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 10:22:12,661 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 10:22:12,661 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 10:22:12,661 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 10:22:12,662 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2020-06-22 10:22:12,662 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-06-22 10:22:12,662 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 10:22:12,662 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-06-22 10:22:12,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 10:22:12 BasicIcfg [2020-06-22 10:22:12,668 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-22 10:22:12,668 INFO L168 Benchmark]: Toolchain (without parser) took 3116.93 ms. Allocated memory was 649.6 MB in the beginning and 673.2 MB in the end (delta: 23.6 MB). Free memory was 565.2 MB in the beginning and 425.5 MB in the end (delta: 139.7 MB). Peak memory consumption was 163.3 MB. Max. memory is 50.3 GB. [2020-06-22 10:22:12,670 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 591.1 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 10:22:12,671 INFO L168 Benchmark]: CACSL2BoogieTranslator took 296.42 ms. Allocated memory was 649.6 MB in the beginning and 673.2 MB in the end (delta: 23.6 MB). Free memory was 565.2 MB in the beginning and 641.0 MB in the end (delta: -75.8 MB). Peak memory consumption was 30.4 MB. Max. memory is 50.3 GB. [2020-06-22 10:22:12,672 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.05 ms. Allocated memory is still 673.2 MB. Free memory was 641.0 MB in the beginning and 639.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-06-22 10:22:12,672 INFO L168 Benchmark]: Boogie Preprocessor took 19.96 ms. Allocated memory is still 673.2 MB. Free memory was 639.9 MB in the beginning and 638.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-06-22 10:22:12,673 INFO L168 Benchmark]: RCFGBuilder took 210.24 ms. Allocated memory is still 673.2 MB. Free memory was 638.8 MB in the beginning and 623.2 MB in the end (delta: 15.5 MB). Peak memory consumption was 15.5 MB. Max. memory is 50.3 GB. [2020-06-22 10:22:12,673 INFO L168 Benchmark]: BlockEncodingV2 took 88.65 ms. Allocated memory is still 673.2 MB. Free memory was 623.2 MB in the beginning and 616.8 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 50.3 GB. [2020-06-22 10:22:12,674 INFO L168 Benchmark]: TraceAbstraction took 154.37 ms. Allocated memory is still 673.2 MB. Free memory was 615.7 MB in the beginning and 607.1 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 50.3 GB. [2020-06-22 10:22:12,674 INFO L168 Benchmark]: BuchiAutomizer took 2296.83 ms. Allocated memory is still 673.2 MB. Free memory was 607.1 MB in the beginning and 425.5 MB in the end (delta: 181.6 MB). Peak memory consumption was 181.6 MB. Max. memory is 50.3 GB. [2020-06-22 10:22:12,679 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 8 locations, 11 edges - StatisticsResult: Encoded RCFG 3 locations, 5 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 591.1 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 296.42 ms. Allocated memory was 649.6 MB in the beginning and 673.2 MB in the end (delta: 23.6 MB). Free memory was 565.2 MB in the beginning and 641.0 MB in the end (delta: -75.8 MB). Peak memory consumption was 30.4 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 45.05 ms. Allocated memory is still 673.2 MB. Free memory was 641.0 MB in the beginning and 639.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 19.96 ms. Allocated memory is still 673.2 MB. Free memory was 639.9 MB in the beginning and 638.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * RCFGBuilder took 210.24 ms. Allocated memory is still 673.2 MB. Free memory was 638.8 MB in the beginning and 623.2 MB in the end (delta: 15.5 MB). Peak memory consumption was 15.5 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 88.65 ms. Allocated memory is still 673.2 MB. Free memory was 623.2 MB in the beginning and 616.8 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 50.3 GB. * TraceAbstraction took 154.37 ms. Allocated memory is still 673.2 MB. Free memory was 615.7 MB in the beginning and 607.1 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 2296.83 ms. Allocated memory is still 673.2 MB. Free memory was 607.1 MB in the beginning and 425.5 MB in the end (delta: 181.6 MB). Peak memory consumption was 181.6 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. - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 3 locations, 0 error locations. SAFE Result, 0.0s OverallTime, 0 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 1 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (2 trivial, 0 deterministic, 3 nondeterministic). One nondeterministic module has affine ranking function y + -1 * x and consists of 3 locations. One nondeterministic module has affine ranking function y + -1 * x and consists of 3 locations. One nondeterministic module has affine ranking function -1 * y + x and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.2s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 1.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 7 states and ocurred in iteration 1. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 9 SDtfs, 20 SDslu, 0 SDs, 0 SdLazy, 51 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT2 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital12 mio100 ax200 hnf100 lsp50 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq150 hnf94 smp100 dnf100 smp100 tf111 neg100 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 15ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-06-22 10:22:06.292 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox2/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox2/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-06-22 10:22:12.915 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check