YES Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-22 06:32:25,617 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-22 06:32:25,619 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-22 06:32:25,631 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-22 06:32:25,632 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-22 06:32:25,633 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-22 06:32:25,634 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-22 06:32:25,635 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-22 06:32:25,637 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-22 06:32:25,638 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-22 06:32:25,639 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-22 06:32:25,639 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-22 06:32:25,640 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-22 06:32:25,640 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-22 06:32:25,641 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-22 06:32:25,642 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-22 06:32:25,643 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-22 06:32:25,645 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-22 06:32:25,647 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-22 06:32:25,648 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-22 06:32:25,649 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-22 06:32:25,650 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-22 06:32:25,652 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-22 06:32:25,652 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-22 06:32:25,653 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-22 06:32:25,653 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-22 06:32:25,654 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-22 06:32:25,655 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-22 06:32:25,655 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-22 06:32:25,655 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-22 06:32:25,656 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-22 06:32:25,657 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-22 06:32:25,658 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-22 06:32:25,658 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-22 06:32:25,659 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-22 06:32:25,659 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-22 06:32:25,659 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-22 06:32:25,660 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-22 06:32:25,661 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-22 06:32:25,661 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-06-22 06:32:25,675 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-22 06:32:25,676 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-22 06:32:25,677 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-22 06:32:25,677 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-22 06:32:25,677 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-22 06:32:25,677 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-22 06:32:25,677 INFO L133 SettingsManager]: * Use SBE=true [2020-06-22 06:32:25,678 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-22 06:32:25,678 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-22 06:32:25,678 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-22 06:32:25,678 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-22 06:32:25,678 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-22 06:32:25,679 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-22 06:32:25,679 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-22 06:32:25,679 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 06:32:25,679 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-22 06:32:25,679 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-22 06:32:25,679 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-22 06:32:25,680 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-22 06:32:25,680 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-22 06:32:25,680 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-22 06:32:25,680 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-22 06:32:25,680 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-22 06:32:25,681 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-22 06:32:25,681 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 06:32:25,681 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-22 06:32:25,681 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-22 06:32:25,681 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-22 06:32:25,682 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-22 06:32:25,708 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-22 06:32:25,721 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-22 06:32:25,725 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-22 06:32:25,726 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-22 06:32:25,727 INFO L276 PluginConnector]: CDTParser initialized [2020-06-22 06:32:25,728 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-06-22 06:32:25,793 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/bccdd7aa71c544498b161f1ef83ffd85/FLAG5410110e0 [2020-06-22 06:32:26,140 INFO L307 CDTParser]: Found 1 translation units. [2020-06-22 06:32:26,141 INFO L161 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-06-22 06:32:26,147 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/bccdd7aa71c544498b161f1ef83ffd85/FLAG5410110e0 [2020-06-22 06:32:26,572 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/bccdd7aa71c544498b161f1ef83ffd85 [2020-06-22 06:32:26,584 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-22 06:32:26,585 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-22 06:32:26,587 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-22 06:32:26,587 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-22 06:32:26,591 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-22 06:32:26,592 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 06:32:26" (1/1) ... [2020-06-22 06:32:26,595 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30bc2399 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 06:32:26, skipping insertion in model container [2020-06-22 06:32:26,595 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 06:32:26" (1/1) ... [2020-06-22 06:32:26,604 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-22 06:32:26,621 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-22 06:32:26,777 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 06:32:26,782 INFO L191 MainTranslator]: Completed pre-run [2020-06-22 06:32:26,850 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 06:32:26,865 INFO L195 MainTranslator]: Completed translation [2020-06-22 06:32:26,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 06:32:26 WrapperNode [2020-06-22 06:32:26,866 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-22 06:32:26,866 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-22 06:32:26,867 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-22 06:32:26,867 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-22 06:32:26,876 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 06:32:26" (1/1) ... [2020-06-22 06:32:26,881 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 06:32:26" (1/1) ... [2020-06-22 06:32:26,901 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-22 06:32:26,901 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-22 06:32:26,901 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-22 06:32:26,901 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-22 06:32:26,911 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 06:32:26" (1/1) ... [2020-06-22 06:32:26,911 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 06:32:26" (1/1) ... [2020-06-22 06:32:26,911 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 06:32:26" (1/1) ... [2020-06-22 06:32:26,912 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 06:32:26" (1/1) ... [2020-06-22 06:32:26,914 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 06:32:26" (1/1) ... [2020-06-22 06:32:26,918 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 06:32:26" (1/1) ... [2020-06-22 06:32:26,919 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 06:32:26" (1/1) ... [2020-06-22 06:32:26,920 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-22 06:32:26,920 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-22 06:32:26,921 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-22 06:32:26,921 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-22 06:32:26,922 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 06:32:26" (1/1) ... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 06:32:26,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-22 06:32:26,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-22 06:32:27,122 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-22 06:32:27,123 INFO L286 CfgBuilder]: Removed 8 assue(true) statements. [2020-06-22 06:32:27,124 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 06:32:27 BoogieIcfgContainer [2020-06-22 06:32:27,124 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-22 06:32:27,125 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-22 06:32:27,125 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-22 06:32:27,127 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-22 06:32:27,127 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 06:32:27" (1/1) ... [2020-06-22 06:32:27,141 INFO L313 BlockEncoder]: Initial Icfg 8 locations, 11 edges [2020-06-22 06:32:27,143 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-22 06:32:27,143 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-22 06:32:27,144 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-22 06:32:27,144 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-22 06:32:27,146 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-22 06:32:27,147 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-22 06:32:27,147 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-22 06:32:27,161 INFO L185 BlockEncoder]: Using Use SBE [2020-06-22 06:32:27,175 INFO L200 BlockEncoder]: SBE split 1 edges [2020-06-22 06:32:27,179 INFO L70 emoveInfeasibleEdges]: Removed 2 edges and 0 locations because of local infeasibility [2020-06-22 06:32:27,181 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 06:32:27,192 INFO L100 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2020-06-22 06:32:27,194 INFO L70 RemoveSinkStates]: Removed 4 edges and 2 locations by removing sink states [2020-06-22 06:32:27,196 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 06:32:27,196 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 06:32:27,196 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-22 06:32:27,197 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 06:32:27,197 INFO L313 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2020-06-22 06:32:27,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 06:32:27 BasicIcfg [2020-06-22 06:32:27,197 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-22 06:32:27,198 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-22 06:32:27,198 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-22 06:32:27,202 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-22 06:32:27,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.06 06:32:26" (1/4) ... [2020-06-22 06:32:27,203 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bbd0a64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 06:32:27, skipping insertion in model container [2020-06-22 06:32:27,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 06:32:26" (2/4) ... [2020-06-22 06:32:27,203 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bbd0a64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 06:32:27, skipping insertion in model container [2020-06-22 06:32:27,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 06:32:27" (3/4) ... [2020-06-22 06:32:27,204 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bbd0a64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 06:32:27, skipping insertion in model container [2020-06-22 06:32:27,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 06:32:27" (4/4) ... [2020-06-22 06:32:27,205 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 06:32:27,215 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-22 06:32:27,223 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-06-22 06:32:27,240 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-06-22 06:32:27,268 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 06:32:27,269 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-22 06:32:27,269 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-22 06:32:27,269 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 06:32:27,269 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 06:32:27,269 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 06:32:27,269 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-22 06:32:27,270 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 06:32:27,270 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-22 06:32:27,284 INFO L276 IsEmpty]: Start isEmpty. Operand 3 states. [2020-06-22 06:32:27,289 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-06-22 06:32:27,292 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. [2020-06-22 06:32:27,343 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-06-22 06:32:27,343 INFO L451 ceAbstractionStarter]: At program point L7-2(lines 7 11) the Hoare annotation is: true [2020-06-22 06:32:27,343 INFO L451 ceAbstractionStarter]: At program point L7-3(lines 6 12) the Hoare annotation is: true [2020-06-22 06:32:27,351 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 06:32:27 BasicIcfg [2020-06-22 06:32:27,351 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-22 06:32:27,352 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-22 06:32:27,352 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-22 06:32:27,355 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-22 06:32:27,356 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 06:32:27,356 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.06 06:32:26" (1/5) ... [2020-06-22 06:32:27,357 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6a3d36e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 06:32:27, skipping insertion in model container [2020-06-22 06:32:27,357 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 06:32:27,357 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 06:32:26" (2/5) ... [2020-06-22 06:32:27,358 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6a3d36e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 06:32:27, skipping insertion in model container [2020-06-22 06:32:27,358 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 06:32:27,358 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 06:32:27" (3/5) ... [2020-06-22 06:32:27,358 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6a3d36e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 06:32:27, skipping insertion in model container [2020-06-22 06:32:27,359 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 06:32:27,359 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 06:32:27" (4/5) ... [2020-06-22 06:32:27,359 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6a3d36e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 06:32:27, skipping insertion in model container [2020-06-22 06:32:27,359 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 06:32:27,359 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 06:32:27" (5/5) ... [2020-06-22 06:32:27,361 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 06:32:27,386 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 06:32:27,386 INFO L374 BuchiCegarLoop]: Interprodecural is true [2020-06-22 06:32:27,386 INFO L375 BuchiCegarLoop]: Hoare is true [2020-06-22 06:32:27,387 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 06:32:27,387 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 06:32:27,387 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 06:32:27,387 INFO L379 BuchiCegarLoop]: Difference is false [2020-06-22 06:32:27,387 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 06:32:27,387 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-06-22 06:32:27,390 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-06-22 06:32:27,407 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 06:32:27,407 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 06:32:27,407 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 06:32:27,412 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 06:32:27,413 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 06:32:27,413 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2020-06-22 06:32:27,413 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-06-22 06:32:27,413 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 06:32:27,414 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 06:32:27,414 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 06:32:27,414 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 06:32:27,414 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 06:32:27,419 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [35] ULTIMATE.startENTRY-->L7-3: Formula: (and (= |v_ULTIMATE.start_test_fun_#in~z_1| |v_ULTIMATE.start_main_#t~nondet2_1|) (= v_ULTIMATE.start_test_fun_~x_1 |v_ULTIMATE.start_test_fun_#in~x_1|) (= v_ULTIMATE.start_test_fun_~z_1 |v_ULTIMATE.start_test_fun_#in~z_1|) (= |v_ULTIMATE.start_test_fun_#in~x_1| |v_ULTIMATE.start_main_#t~nondet0_1|) (= |v_ULTIMATE.start_test_fun_#in~y_1| |v_ULTIMATE.start_main_#t~nondet1_1|) (= v_ULTIMATE.start_test_fun_~y_1 |v_ULTIMATE.start_test_fun_#in~y_1|) (= v_ULTIMATE.start_test_fun_~c~0_1 0)) InVars {} OutVars{ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_1, ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_1, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_test_fun_#in~z=|v_ULTIMATE.start_test_fun_#in~z_1|, ULTIMATE.start_test_fun_#in~y=|v_ULTIMATE.start_test_fun_#in~y_1|, ULTIMATE.start_test_fun_~z=v_ULTIMATE.start_test_fun_~z_1, ULTIMATE.start_test_fun_#in~x=|v_ULTIMATE.start_test_fun_#in~x_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_test_fun_#res=|v_ULTIMATE.start_test_fun_#res_1|, ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_1, ULTIMATE.start_main_#t~ret3=|v_ULTIMATE.start_main_#t~ret3_1|} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~y, ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_test_fun_~x, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_test_fun_#in~z, ULTIMATE.start_test_fun_#in~y, ULTIMATE.start_test_fun_~z, ULTIMATE.start_test_fun_#in~x, ULTIMATE.start_main_#res, ULTIMATE.start_test_fun_#res, ULTIMATE.start_test_fun_~c~0, ULTIMATE.start_main_#t~ret3] 5#L7-3true [2020-06-22 06:32:27,420 INFO L796 eck$LassoCheckResult]: Loop: 5#L7-3true [41] L7-3-->L7-2: Formula: (and (< v_ULTIMATE.start_test_fun_~z_6 v_ULTIMATE.start_test_fun_~x_6) (= v_ULTIMATE.start_test_fun_~y_7 v_ULTIMATE.start_test_fun_~x_6)) InVars {ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_7, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_6, ULTIMATE.start_test_fun_~z=v_ULTIMATE.start_test_fun_~z_6} OutVars{ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_7, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_6, ULTIMATE.start_test_fun_~z=v_ULTIMATE.start_test_fun_~z_6} AuxVars[] AssignedVars[] 3#L7-2true [44] L7-2-->L7-3: Formula: (>= v_ULTIMATE.start_test_fun_~z_3 v_ULTIMATE.start_test_fun_~y_3) InVars {ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_3, ULTIMATE.start_test_fun_~z=v_ULTIMATE.start_test_fun_~z_3} OutVars{ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_3, ULTIMATE.start_test_fun_~z=v_ULTIMATE.start_test_fun_~z_3} AuxVars[] AssignedVars[] 5#L7-3true [2020-06-22 06:32:27,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 06:32:27,426 INFO L82 PathProgramCache]: Analyzing trace with hash 66, now seen corresponding path program 1 times [2020-06-22 06:32:27,428 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 06:32:27,428 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 06:32:27,448 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 06:32:27,448 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 06:32:27,448 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 06:32:27,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 06:32:27,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 06:32:27,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 06:32:27,498 INFO L82 PathProgramCache]: Analyzing trace with hash 2276, now seen corresponding path program 1 times [2020-06-22 06:32:27,498 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 06:32:27,498 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 06:32:27,499 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 06:32:27,499 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 06:32:27,499 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 06:32:27,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 06:32:27,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 06:32:27,551 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 06:32:27,551 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-06-22 06:32:27,556 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-06-22 06:32:27,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-06-22 06:32:27,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-06-22 06:32:27,575 INFO L87 Difference]: Start difference. First operand 3 states. Second operand 3 states. [2020-06-22 06:32:27,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 06:32:27,595 INFO L93 Difference]: Finished difference Result 4 states and 5 transitions. [2020-06-22 06:32:27,596 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-06-22 06:32:27,599 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 4 states and 5 transitions. [2020-06-22 06:32:27,600 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 06:32:27,604 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 4 states to 4 states and 5 transitions. [2020-06-22 06:32:27,605 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2020-06-22 06:32:27,605 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2020-06-22 06:32:27,607 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 5 transitions. [2020-06-22 06:32:27,607 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 06:32:27,607 INFO L706 BuchiCegarLoop]: Abstraction has 4 states and 5 transitions. [2020-06-22 06:32:27,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4 states and 5 transitions. [2020-06-22 06:32:27,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4 to 4. [2020-06-22 06:32:27,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-06-22 06:32:27,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 5 transitions. [2020-06-22 06:32:27,637 INFO L729 BuchiCegarLoop]: Abstraction has 4 states and 5 transitions. [2020-06-22 06:32:27,637 INFO L609 BuchiCegarLoop]: Abstraction has 4 states and 5 transitions. [2020-06-22 06:32:27,637 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2020-06-22 06:32:27,637 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states and 5 transitions. [2020-06-22 06:32:27,638 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 06:32:27,638 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 06:32:27,638 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 06:32:27,638 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 06:32:27,638 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 06:32:27,639 INFO L794 eck$LassoCheckResult]: Stem: 18#ULTIMATE.startENTRY [35] ULTIMATE.startENTRY-->L7-3: Formula: (and (= |v_ULTIMATE.start_test_fun_#in~z_1| |v_ULTIMATE.start_main_#t~nondet2_1|) (= v_ULTIMATE.start_test_fun_~x_1 |v_ULTIMATE.start_test_fun_#in~x_1|) (= v_ULTIMATE.start_test_fun_~z_1 |v_ULTIMATE.start_test_fun_#in~z_1|) (= |v_ULTIMATE.start_test_fun_#in~x_1| |v_ULTIMATE.start_main_#t~nondet0_1|) (= |v_ULTIMATE.start_test_fun_#in~y_1| |v_ULTIMATE.start_main_#t~nondet1_1|) (= v_ULTIMATE.start_test_fun_~y_1 |v_ULTIMATE.start_test_fun_#in~y_1|) (= v_ULTIMATE.start_test_fun_~c~0_1 0)) InVars {} OutVars{ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_1, ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_1, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_test_fun_#in~z=|v_ULTIMATE.start_test_fun_#in~z_1|, ULTIMATE.start_test_fun_#in~y=|v_ULTIMATE.start_test_fun_#in~y_1|, ULTIMATE.start_test_fun_~z=v_ULTIMATE.start_test_fun_~z_1, ULTIMATE.start_test_fun_#in~x=|v_ULTIMATE.start_test_fun_#in~x_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_test_fun_#res=|v_ULTIMATE.start_test_fun_#res_1|, ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_1, ULTIMATE.start_main_#t~ret3=|v_ULTIMATE.start_main_#t~ret3_1|} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~y, ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_test_fun_~x, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_test_fun_#in~z, ULTIMATE.start_test_fun_#in~y, ULTIMATE.start_test_fun_~z, ULTIMATE.start_test_fun_#in~x, ULTIMATE.start_main_#res, ULTIMATE.start_test_fun_#res, ULTIMATE.start_test_fun_~c~0, ULTIMATE.start_main_#t~ret3] 19#L7-3 [2020-06-22 06:32:27,639 INFO L796 eck$LassoCheckResult]: Loop: 19#L7-3 [41] L7-3-->L7-2: Formula: (and (< v_ULTIMATE.start_test_fun_~z_6 v_ULTIMATE.start_test_fun_~x_6) (= v_ULTIMATE.start_test_fun_~y_7 v_ULTIMATE.start_test_fun_~x_6)) InVars {ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_7, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_6, ULTIMATE.start_test_fun_~z=v_ULTIMATE.start_test_fun_~z_6} OutVars{ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_7, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_6, ULTIMATE.start_test_fun_~z=v_ULTIMATE.start_test_fun_~z_6} AuxVars[] AssignedVars[] 16#L7-2 [34] L7-2-->L7-2: Formula: (and (= v_ULTIMATE.start_test_fun_~y_4 (+ v_ULTIMATE.start_test_fun_~y_5 (- 1))) (= v_ULTIMATE.start_test_fun_~x_3 (+ v_ULTIMATE.start_test_fun_~x_4 (- 1))) (= v_ULTIMATE.start_test_fun_~c~0_3 (+ v_ULTIMATE.start_test_fun_~c~0_4 1)) (< v_ULTIMATE.start_test_fun_~z_4 v_ULTIMATE.start_test_fun_~y_5)) InVars {ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_5, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_4, ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_4, ULTIMATE.start_test_fun_~z=v_ULTIMATE.start_test_fun_~z_4} OutVars{ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_4, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_3, ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_3, ULTIMATE.start_test_fun_~z=v_ULTIMATE.start_test_fun_~z_4} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~y, ULTIMATE.start_test_fun_~x, ULTIMATE.start_test_fun_~c~0] 17#L7-2 [44] L7-2-->L7-3: Formula: (>= v_ULTIMATE.start_test_fun_~z_3 v_ULTIMATE.start_test_fun_~y_3) InVars {ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_3, ULTIMATE.start_test_fun_~z=v_ULTIMATE.start_test_fun_~z_3} OutVars{ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_3, ULTIMATE.start_test_fun_~z=v_ULTIMATE.start_test_fun_~z_3} AuxVars[] AssignedVars[] 19#L7-3 [2020-06-22 06:32:27,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 06:32:27,640 INFO L82 PathProgramCache]: Analyzing trace with hash 66, now seen corresponding path program 2 times [2020-06-22 06:32:27,640 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 06:32:27,640 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 06:32:27,641 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 06:32:27,641 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 06:32:27,641 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 06:32:27,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 06:32:27,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 06:32:27,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 06:32:27,649 INFO L82 PathProgramCache]: Analyzing trace with hash 70290, now seen corresponding path program 1 times [2020-06-22 06:32:27,649 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 06:32:27,649 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 06:32:27,650 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 06:32:27,650 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 06:32:27,650 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 06:32:27,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 06:32:27,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 06:32:27,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 06:32:27,663 INFO L82 PathProgramCache]: Analyzing trace with hash 2006705, now seen corresponding path program 1 times [2020-06-22 06:32:27,663 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 06:32:27,664 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 06:32:27,665 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 06:32:27,665 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 06:32:27,665 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 06:32:27,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 06:32:27,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 06:32:27,777 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 06:32:27,778 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 06:32:27,778 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 06:32:27,778 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 06:32:27,778 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 06:32:27,779 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 06:32:27,779 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 06:32:27,779 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 06:32:27,779 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 06:32:27,779 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 06:32:27,779 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 06:32:27,798 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 06:32:27,818 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 06:32:27,912 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 06:32:27,913 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 06:32:27,921 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 06:32:27,921 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 06:32:27,959 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 06:32:27,959 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 06:32:28,339 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 06:32:28,342 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 06:32:28,342 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 06:32:28,343 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 06:32:28,343 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 06:32:28,343 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 06:32:28,343 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 06:32:28,343 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 06:32:28,343 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 06:32:28,343 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 06:32:28,343 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 06:32:28,344 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 06:32:28,345 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 06:32:28,360 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 06:32:28,418 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 06:32:28,424 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 06:32:28,426 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 06:32:28,427 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 06:32:28,427 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 06:32:28,428 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 06:32:28,428 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 06:32:28,428 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 06:32:28,431 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 06:32:28,431 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 06:32:28,442 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 06:32:28,452 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 06:32:28,453 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 06:32:28,455 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 06:32:28,455 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 06:32:28,456 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 06:32:28,456 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_test_fun_~x, ULTIMATE.start_test_fun_~z) = 1*ULTIMATE.start_test_fun_~x - 1*ULTIMATE.start_test_fun_~z Supporting invariants [] [2020-06-22 06:32:28,458 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 06:32:28,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 06:32:28,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 06:32:28,505 INFO L256 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 06:32:28,506 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 06:32:28,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 06:32:28,520 INFO L256 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 06:32:28,521 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 06:32:28,571 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 06:32:28,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 06:32:28,622 INFO L256 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 06:32:28,622 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 06:32:28,635 INFO L98 LoopCannibalizer]: 4 predicates before loop cannibalization 5 predicates after loop cannibalization [2020-06-22 06:32:28,638 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 5 loop predicates [2020-06-22 06:32:28,639 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 4 states and 5 transitions. cyclomatic complexity: 2 Second operand 4 states. [2020-06-22 06:32:28,756 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 4 states and 5 transitions. cyclomatic complexity: 2. Second operand 4 states. Result 15 states and 20 transitions. Complement of second has 11 states. [2020-06-22 06:32:28,757 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2020-06-22 06:32:28,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-06-22 06:32:28,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 16 transitions. [2020-06-22 06:32:28,760 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 16 transitions. Stem has 1 letters. Loop has 3 letters. [2020-06-22 06:32:28,762 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 06:32:28,762 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 16 transitions. Stem has 4 letters. Loop has 3 letters. [2020-06-22 06:32:28,763 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 06:32:28,763 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 16 transitions. Stem has 1 letters. Loop has 6 letters. [2020-06-22 06:32:28,765 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 06:32:28,770 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 20 transitions. [2020-06-22 06:32:28,771 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-06-22 06:32:28,771 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 6 states and 6 transitions. [2020-06-22 06:32:28,772 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2020-06-22 06:32:28,772 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2020-06-22 06:32:28,772 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 6 transitions. [2020-06-22 06:32:28,772 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 06:32:28,772 INFO L706 BuchiCegarLoop]: Abstraction has 6 states and 6 transitions. [2020-06-22 06:32:28,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 6 transitions. [2020-06-22 06:32:28,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 3. [2020-06-22 06:32:28,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-06-22 06:32:28,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3 transitions. [2020-06-22 06:32:28,773 INFO L729 BuchiCegarLoop]: Abstraction has 3 states and 3 transitions. [2020-06-22 06:32:28,774 INFO L609 BuchiCegarLoop]: Abstraction has 3 states and 3 transitions. [2020-06-22 06:32:28,774 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2020-06-22 06:32:28,774 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states and 3 transitions. [2020-06-22 06:32:28,774 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-06-22 06:32:28,774 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 06:32:28,774 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 06:32:28,775 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 06:32:28,775 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-06-22 06:32:28,775 INFO L794 eck$LassoCheckResult]: Stem: 91#ULTIMATE.startENTRY [35] ULTIMATE.startENTRY-->L7-3: Formula: (and (= |v_ULTIMATE.start_test_fun_#in~z_1| |v_ULTIMATE.start_main_#t~nondet2_1|) (= v_ULTIMATE.start_test_fun_~x_1 |v_ULTIMATE.start_test_fun_#in~x_1|) (= v_ULTIMATE.start_test_fun_~z_1 |v_ULTIMATE.start_test_fun_#in~z_1|) (= |v_ULTIMATE.start_test_fun_#in~x_1| |v_ULTIMATE.start_main_#t~nondet0_1|) (= |v_ULTIMATE.start_test_fun_#in~y_1| |v_ULTIMATE.start_main_#t~nondet1_1|) (= v_ULTIMATE.start_test_fun_~y_1 |v_ULTIMATE.start_test_fun_#in~y_1|) (= v_ULTIMATE.start_test_fun_~c~0_1 0)) InVars {} OutVars{ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_1, ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_1, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_test_fun_#in~z=|v_ULTIMATE.start_test_fun_#in~z_1|, ULTIMATE.start_test_fun_#in~y=|v_ULTIMATE.start_test_fun_#in~y_1|, ULTIMATE.start_test_fun_~z=v_ULTIMATE.start_test_fun_~z_1, ULTIMATE.start_test_fun_#in~x=|v_ULTIMATE.start_test_fun_#in~x_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_test_fun_#res=|v_ULTIMATE.start_test_fun_#res_1|, ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_1, ULTIMATE.start_main_#t~ret3=|v_ULTIMATE.start_main_#t~ret3_1|} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~y, ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_test_fun_~x, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_test_fun_#in~z, ULTIMATE.start_test_fun_#in~y, ULTIMATE.start_test_fun_~z, ULTIMATE.start_test_fun_#in~x, ULTIMATE.start_main_#res, ULTIMATE.start_test_fun_#res, ULTIMATE.start_test_fun_~c~0, ULTIMATE.start_main_#t~ret3] 92#L7-3 [41] L7-3-->L7-2: Formula: (and (< v_ULTIMATE.start_test_fun_~z_6 v_ULTIMATE.start_test_fun_~x_6) (= v_ULTIMATE.start_test_fun_~y_7 v_ULTIMATE.start_test_fun_~x_6)) InVars {ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_7, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_6, ULTIMATE.start_test_fun_~z=v_ULTIMATE.start_test_fun_~z_6} OutVars{ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_7, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_6, ULTIMATE.start_test_fun_~z=v_ULTIMATE.start_test_fun_~z_6} AuxVars[] AssignedVars[] 90#L7-2 [2020-06-22 06:32:28,775 INFO L796 eck$LassoCheckResult]: Loop: 90#L7-2 [34] L7-2-->L7-2: Formula: (and (= v_ULTIMATE.start_test_fun_~y_4 (+ v_ULTIMATE.start_test_fun_~y_5 (- 1))) (= v_ULTIMATE.start_test_fun_~x_3 (+ v_ULTIMATE.start_test_fun_~x_4 (- 1))) (= v_ULTIMATE.start_test_fun_~c~0_3 (+ v_ULTIMATE.start_test_fun_~c~0_4 1)) (< v_ULTIMATE.start_test_fun_~z_4 v_ULTIMATE.start_test_fun_~y_5)) InVars {ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_5, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_4, ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_4, ULTIMATE.start_test_fun_~z=v_ULTIMATE.start_test_fun_~z_4} OutVars{ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_4, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_3, ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_3, ULTIMATE.start_test_fun_~z=v_ULTIMATE.start_test_fun_~z_4} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~y, ULTIMATE.start_test_fun_~x, ULTIMATE.start_test_fun_~c~0] 90#L7-2 [2020-06-22 06:32:28,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 06:32:28,777 INFO L82 PathProgramCache]: Analyzing trace with hash 2087, now seen corresponding path program 1 times [2020-06-22 06:32:28,777 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 06:32:28,777 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 06:32:28,778 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 06:32:28,779 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 06:32:28,779 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 06:32:28,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 06:32:28,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 06:32:28,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 06:32:28,787 INFO L82 PathProgramCache]: Analyzing trace with hash 65, now seen corresponding path program 1 times [2020-06-22 06:32:28,787 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 06:32:28,787 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 06:32:28,788 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 06:32:28,788 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 06:32:28,788 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 06:32:28,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 06:32:28,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 06:32:28,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 06:32:28,794 INFO L82 PathProgramCache]: Analyzing trace with hash 64731, now seen corresponding path program 1 times [2020-06-22 06:32:28,794 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 06:32:28,794 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 06:32:28,796 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 06:32:28,796 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 06:32:28,796 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 06:32:28,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 06:32:28,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 06:32:28,843 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 06:32:28,844 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 06:32:28,844 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 06:32:28,844 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 06:32:28,845 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 06:32:28,845 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 06:32:28,845 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 06:32:28,845 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 06:32:28,845 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-06-22 06:32:28,845 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 06:32:28,845 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 06:32:28,846 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 06:32:28,853 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 06:32:28,857 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 06:32:28,910 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 06:32:28,910 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 06:32:28,915 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 06:32:28,915 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 06:32:28,948 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 06:32:28,949 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 06:32:28,969 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 06:32:28,969 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_test_fun_~c~0=0} Honda state: {ULTIMATE.start_test_fun_~c~0=0} Generalized eigenvectors: [{ULTIMATE.start_test_fun_~c~0=-4}, {ULTIMATE.start_test_fun_~c~0=7}, {ULTIMATE.start_test_fun_~c~0=-2}] Lambdas: [1, 1, 1] Nus: [0, 0] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 06:32:29,000 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 06:32:29,001 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 06:32:29,035 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 06:32:29,035 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 06:32:29,053 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 06:32:29,053 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_test_fun_~x=0} Honda state: {ULTIMATE.start_test_fun_~x=0} Generalized eigenvectors: [{ULTIMATE.start_test_fun_~x=0}, {ULTIMATE.start_test_fun_~x=-1}, {ULTIMATE.start_test_fun_~x=0}] Lambdas: [2, 1, 0] Nus: [0, 0] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 06:32:29,087 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 06:32:29,088 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 06:32:29,130 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 06:32:29,130 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 06:32:29,377 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 06:32:29,380 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 06:32:29,380 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 06:32:29,380 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 06:32:29,380 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 06:32:29,381 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 06:32:29,381 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 06:32:29,381 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 06:32:29,381 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 06:32:29,381 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-06-22 06:32:29,381 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 06:32:29,381 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 06:32:29,383 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 06:32:29,387 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 06:32:29,390 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 06:32:29,433 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 06:32:29,434 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 06:32:29,434 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 06:32:29,435 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 06:32:29,435 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 06:32:29,435 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 06:32:29,435 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 06:32:29,436 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 06:32:29,436 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 06:32:29,436 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 06:32:29,441 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 06:32:29,441 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 06:32:29,442 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 06:32:29,442 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 06:32:29,443 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 06:32:29,443 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 06:32:29,443 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 06:32:29,443 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 06:32:29,444 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 06:32:29,447 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 06:32:29,447 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 06:32:29,448 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 06:32:29,448 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 06:32:29,448 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 06:32:29,448 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 06:32:29,448 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 06:32:29,449 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 06:32:29,449 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 06:32:29,453 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 06:32:29,459 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-06-22 06:32:29,459 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 06:32:29,460 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 06:32:29,460 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 06:32:29,460 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 06:32:29,460 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_test_fun_~z, ULTIMATE.start_test_fun_~y) = -1*ULTIMATE.start_test_fun_~z + 1*ULTIMATE.start_test_fun_~y Supporting invariants [] [2020-06-22 06:32:29,461 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 06:32:29,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 06:32:29,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 06:32:29,484 INFO L256 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 06:32:29,484 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 06:32:29,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 06:32:29,489 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 06:32:29,489 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 06:32:29,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 06:32:29,490 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization [2020-06-22 06:32:29,490 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2020-06-22 06:32:29,490 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 3 states and 3 transitions. cyclomatic complexity: 1 Second operand 2 states. [2020-06-22 06:32:29,497 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 3 states and 3 transitions. cyclomatic complexity: 1. Second operand 2 states. Result 4 states and 4 transitions. Complement of second has 2 states. [2020-06-22 06:32:29,497 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2020-06-22 06:32:29,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-06-22 06:32:29,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 5 transitions. [2020-06-22 06:32:29,498 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 5 transitions. Stem has 2 letters. Loop has 1 letters. [2020-06-22 06:32:29,499 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 06:32:29,499 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 5 transitions. Stem has 3 letters. Loop has 1 letters. [2020-06-22 06:32:29,499 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 06:32:29,499 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 5 transitions. Stem has 2 letters. Loop has 2 letters. [2020-06-22 06:32:29,499 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 06:32:29,500 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 4 states and 4 transitions. [2020-06-22 06:32:29,501 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 06:32:29,501 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 4 states to 0 states and 0 transitions. [2020-06-22 06:32:29,501 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-06-22 06:32:29,501 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-06-22 06:32:29,501 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-06-22 06:32:29,501 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 06:32:29,501 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 06:32:29,502 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 06:32:29,502 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 06:32:29,502 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2020-06-22 06:32:29,502 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-06-22 06:32:29,502 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 06:32:29,502 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-06-22 06:32:29,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 06:32:29 BasicIcfg [2020-06-22 06:32:29,508 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-22 06:32:29,509 INFO L168 Benchmark]: Toolchain (without parser) took 2924.18 ms. Allocated memory was 649.6 MB in the beginning and 696.3 MB in the end (delta: 46.7 MB). Free memory was 560.1 MB in the beginning and 465.1 MB in the end (delta: 95.0 MB). Peak memory consumption was 141.7 MB. Max. memory is 50.3 GB. [2020-06-22 06:32:29,511 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 649.6 MB. Free memory is still 585.7 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 06:32:29,511 INFO L168 Benchmark]: CACSL2BoogieTranslator took 279.12 ms. Allocated memory was 649.6 MB in the beginning and 696.3 MB in the end (delta: 46.7 MB). Free memory was 558.7 MB in the beginning and 664.0 MB in the end (delta: -105.2 MB). Peak memory consumption was 28.5 MB. Max. memory is 50.3 GB. [2020-06-22 06:32:29,512 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.38 ms. Allocated memory is still 696.3 MB. Free memory was 664.0 MB in the beginning and 659.5 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 50.3 GB. [2020-06-22 06:32:29,512 INFO L168 Benchmark]: Boogie Preprocessor took 19.06 ms. Allocated memory is still 696.3 MB. Free memory is still 659.5 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 06:32:29,513 INFO L168 Benchmark]: RCFGBuilder took 203.80 ms. Allocated memory is still 696.3 MB. Free memory was 658.2 MB in the beginning and 645.1 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 50.3 GB. [2020-06-22 06:32:29,513 INFO L168 Benchmark]: BlockEncodingV2 took 72.95 ms. Allocated memory is still 696.3 MB. Free memory was 645.1 MB in the beginning and 639.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. [2020-06-22 06:32:29,514 INFO L168 Benchmark]: TraceAbstraction took 153.10 ms. Allocated memory is still 696.3 MB. Free memory was 639.7 MB in the beginning and 630.3 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 50.3 GB. [2020-06-22 06:32:29,515 INFO L168 Benchmark]: BuchiAutomizer took 2156.26 ms. Allocated memory is still 696.3 MB. Free memory was 630.3 MB in the beginning and 465.1 MB in the end (delta: 165.2 MB). Peak memory consumption was 165.2 MB. Max. memory is 50.3 GB. [2020-06-22 06:32:29,519 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, 4 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 649.6 MB. Free memory is still 585.7 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 279.12 ms. Allocated memory was 649.6 MB in the beginning and 696.3 MB in the end (delta: 46.7 MB). Free memory was 558.7 MB in the beginning and 664.0 MB in the end (delta: -105.2 MB). Peak memory consumption was 28.5 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 34.38 ms. Allocated memory is still 696.3 MB. Free memory was 664.0 MB in the beginning and 659.5 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 19.06 ms. Allocated memory is still 696.3 MB. Free memory is still 659.5 MB. There was no memory consumed. Max. memory is 50.3 GB. * RCFGBuilder took 203.80 ms. Allocated memory is still 696.3 MB. Free memory was 658.2 MB in the beginning and 645.1 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 72.95 ms. Allocated memory is still 696.3 MB. Free memory was 645.1 MB in the beginning and 639.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. * TraceAbstraction took 153.10 ms. Allocated memory is still 696.3 MB. Free memory was 639.7 MB in the beginning and 630.3 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 2156.26 ms. Allocated memory is still 696.3 MB. Free memory was 630.3 MB in the beginning and 465.1 MB in the end (delta: 165.2 MB). Peak memory consumption was 165.2 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: 7]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 3 locations, 0 error locations. SAFE Result, 0.0s OverallTime, 0 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 2 NumberOfFragments, 2 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 0 deterministic, 2 nondeterministic). One nondeterministic module has affine ranking function x + -1 * z and consists of 7 locations. One nondeterministic module has affine ranking function -1 * z + y and consists of 2 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.1s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 1.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 4 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/1 HoareTripleCheckerStatistics: 8 SDtfs, 10 SDslu, 0 SDs, 0 SdLazy, 32 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital23 mio100 ax100 hnf100 lsp65 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq168 hnf92 smp88 dnf100 smp100 tf110 neg100 sie109 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 31ms VariablesStem: 0 VariablesLoop: 5 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.8s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-06-22 06:32:23.302 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox/tmp -i /export/starexec/sandbox/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-06-22 06:32:29.751 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check