NO Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-22 08:24:09,088 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-22 08:24:09,090 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-22 08:24:09,102 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-22 08:24:09,102 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-22 08:24:09,103 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-22 08:24:09,104 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-22 08:24:09,105 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-22 08:24:09,107 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-22 08:24:09,108 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-22 08:24:09,108 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-22 08:24:09,109 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-22 08:24:09,109 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-22 08:24:09,110 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-22 08:24:09,111 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-22 08:24:09,112 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-22 08:24:09,113 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-22 08:24:09,114 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-22 08:24:09,116 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-22 08:24:09,118 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-22 08:24:09,118 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-22 08:24:09,120 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-22 08:24:09,122 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-22 08:24:09,122 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-22 08:24:09,122 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-22 08:24:09,123 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-22 08:24:09,123 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-22 08:24:09,124 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-22 08:24:09,124 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-22 08:24:09,125 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-22 08:24:09,125 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-22 08:24:09,126 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-22 08:24:09,127 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-22 08:24:09,127 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-22 08:24:09,128 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-22 08:24:09,128 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-22 08:24:09,128 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-22 08:24:09,129 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-22 08:24:09,129 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-22 08:24:09,130 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-06-22 08:24:09,144 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-22 08:24:09,144 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-22 08:24:09,149 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-22 08:24:09,149 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-22 08:24:09,149 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-22 08:24:09,149 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-22 08:24:09,150 INFO L133 SettingsManager]: * Use SBE=true [2020-06-22 08:24:09,150 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-22 08:24:09,150 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-22 08:24:09,150 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-22 08:24:09,150 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-22 08:24:09,150 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-22 08:24:09,151 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-22 08:24:09,151 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-22 08:24:09,151 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 08:24:09,151 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-22 08:24:09,151 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-22 08:24:09,152 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-22 08:24:09,152 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-22 08:24:09,152 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-22 08:24:09,152 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-22 08:24:09,152 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-22 08:24:09,153 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-22 08:24:09,153 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-22 08:24:09,153 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 08:24:09,153 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-22 08:24:09,153 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-22 08:24:09,153 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-22 08:24:09,154 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-22 08:24:09,179 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-22 08:24:09,192 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-22 08:24:09,195 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-22 08:24:09,196 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-22 08:24:09,197 INFO L276 PluginConnector]: CDTParser initialized [2020-06-22 08:24:09,197 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 08:24:09,270 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/8fead0929a9c4da3a57b8bb329d7b608/FLAG62abc9cbb [2020-06-22 08:24:09,598 INFO L307 CDTParser]: Found 1 translation units. [2020-06-22 08:24:09,598 INFO L161 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 08:24:09,605 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/8fead0929a9c4da3a57b8bb329d7b608/FLAG62abc9cbb [2020-06-22 08:24:10,008 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/8fead0929a9c4da3a57b8bb329d7b608 [2020-06-22 08:24:10,020 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-22 08:24:10,021 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-22 08:24:10,023 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-22 08:24:10,023 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-22 08:24:10,026 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-22 08:24:10,027 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 08:24:10" (1/1) ... [2020-06-22 08:24:10,030 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45986616 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:24:10, skipping insertion in model container [2020-06-22 08:24:10,031 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 08:24:10" (1/1) ... [2020-06-22 08:24:10,038 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-22 08:24:10,056 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-22 08:24:10,212 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 08:24:10,216 INFO L191 MainTranslator]: Completed pre-run [2020-06-22 08:24:10,287 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 08:24:10,301 INFO L195 MainTranslator]: Completed translation [2020-06-22 08:24:10,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:24:10 WrapperNode [2020-06-22 08:24:10,302 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-22 08:24:10,303 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-22 08:24:10,303 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-22 08:24:10,303 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-22 08:24:10,313 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:24:10" (1/1) ... [2020-06-22 08:24:10,318 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:24:10" (1/1) ... [2020-06-22 08:24:10,337 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-22 08:24:10,337 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-22 08:24:10,337 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-22 08:24:10,337 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-22 08:24:10,347 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:24:10" (1/1) ... [2020-06-22 08:24:10,347 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:24:10" (1/1) ... [2020-06-22 08:24:10,347 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:24:10" (1/1) ... [2020-06-22 08:24:10,348 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:24:10" (1/1) ... [2020-06-22 08:24:10,350 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:24:10" (1/1) ... [2020-06-22 08:24:10,354 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:24:10" (1/1) ... [2020-06-22 08:24:10,355 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:24:10" (1/1) ... [2020-06-22 08:24:10,356 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-22 08:24:10,357 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-22 08:24:10,357 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-22 08:24:10,357 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-22 08:24:10,358 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:24:10" (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 08:24:10,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-22 08:24:10,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-22 08:24:10,560 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-22 08:24:10,561 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. [2020-06-22 08:24:10,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 08:24:10 BoogieIcfgContainer [2020-06-22 08:24:10,562 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-22 08:24:10,563 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-22 08:24:10,563 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-22 08:24:10,565 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-22 08:24:10,566 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 08:24:10" (1/1) ... [2020-06-22 08:24:10,582 INFO L313 BlockEncoder]: Initial Icfg 7 locations, 9 edges [2020-06-22 08:24:10,583 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-22 08:24:10,584 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-22 08:24:10,585 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-22 08:24:10,585 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-22 08:24:10,587 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-22 08:24:10,588 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-22 08:24:10,588 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-22 08:24:10,605 INFO L185 BlockEncoder]: Using Use SBE [2020-06-22 08:24:10,626 INFO L200 BlockEncoder]: SBE split 3 edges [2020-06-22 08:24:10,631 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-06-22 08:24:10,633 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 08:24:10,644 INFO L100 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2020-06-22 08:24:10,646 INFO L70 RemoveSinkStates]: Removed 6 edges and 2 locations by removing sink states [2020-06-22 08:24:10,648 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 08:24:10,648 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 08:24:10,648 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-22 08:24:10,648 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 08:24:10,649 INFO L313 BlockEncoder]: Encoded RCFG 3 locations, 6 edges [2020-06-22 08:24:10,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 08:24:10 BasicIcfg [2020-06-22 08:24:10,649 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-22 08:24:10,650 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-22 08:24:10,650 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-22 08:24:10,654 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-22 08:24:10,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.06 08:24:10" (1/4) ... [2020-06-22 08:24:10,655 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67408bf6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 08:24:10, skipping insertion in model container [2020-06-22 08:24:10,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:24:10" (2/4) ... [2020-06-22 08:24:10,656 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67408bf6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 08:24:10, skipping insertion in model container [2020-06-22 08:24:10,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 08:24:10" (3/4) ... [2020-06-22 08:24:10,656 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67408bf6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 08:24:10, skipping insertion in model container [2020-06-22 08:24:10,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 08:24:10" (4/4) ... [2020-06-22 08:24:10,658 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 08:24:10,668 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-22 08:24:10,677 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-06-22 08:24:10,695 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-06-22 08:24:10,725 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 08:24:10,727 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-22 08:24:10,727 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-22 08:24:10,727 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 08:24:10,728 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 08:24:10,728 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 08:24:10,728 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-22 08:24:10,728 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 08:24:10,728 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-22 08:24:10,743 INFO L276 IsEmpty]: Start isEmpty. Operand 3 states. [2020-06-22 08:24:10,749 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-06-22 08:24:10,752 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. [2020-06-22 08:24:10,803 INFO L448 ceAbstractionStarter]: For program point L17(lines 17 24) no Hoare annotation was computed. [2020-06-22 08:24:10,804 INFO L451 ceAbstractionStarter]: At program point L17-2(lines 15 25) the Hoare annotation is: true [2020-06-22 08:24:10,804 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-06-22 08:24:10,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 08:24:10 BasicIcfg [2020-06-22 08:24:10,813 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-22 08:24:10,813 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-22 08:24:10,814 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-22 08:24:10,817 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-22 08:24:10,818 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 08:24:10,819 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.06 08:24:10" (1/5) ... [2020-06-22 08:24:10,820 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6206fd45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 08:24:10, skipping insertion in model container [2020-06-22 08:24:10,820 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 08:24:10,820 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:24:10" (2/5) ... [2020-06-22 08:24:10,820 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6206fd45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 08:24:10, skipping insertion in model container [2020-06-22 08:24:10,821 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 08:24:10,821 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 08:24:10" (3/5) ... [2020-06-22 08:24:10,821 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6206fd45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 08:24:10, skipping insertion in model container [2020-06-22 08:24:10,821 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 08:24:10,821 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 08:24:10" (4/5) ... [2020-06-22 08:24:10,822 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6206fd45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 08:24:10, skipping insertion in model container [2020-06-22 08:24:10,822 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 08:24:10,822 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 08:24:10" (5/5) ... [2020-06-22 08:24:10,824 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 08:24:10,853 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 08:24:10,854 INFO L374 BuchiCegarLoop]: Interprodecural is true [2020-06-22 08:24:10,854 INFO L375 BuchiCegarLoop]: Hoare is true [2020-06-22 08:24:10,854 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 08:24:10,854 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 08:24:10,854 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 08:24:10,859 INFO L379 BuchiCegarLoop]: Difference is false [2020-06-22 08:24:10,859 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 08:24:10,860 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-06-22 08:24:10,864 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-06-22 08:24:10,882 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 08:24:10,883 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 08:24:10,883 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 08:24:10,890 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 08:24:10,890 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 08:24:10,891 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2020-06-22 08:24:10,891 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-06-22 08:24:10,891 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 08:24:10,891 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 08:24:10,892 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 08:24:10,892 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 08:24:10,892 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 08:24:10,898 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [27] ULTIMATE.startENTRY-->L17-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~res~0_1 0) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~z~0_1 v_ULTIMATE.start_main_~y~0_1)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~res~0=v_ULTIMATE.start_main_~res~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~res~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 3#L17-2true [2020-06-22 08:24:10,898 INFO L796 eck$LassoCheckResult]: Loop: 3#L17-2true [35] L17-2-->L17: Formula: (and (= 0 v_ULTIMATE.start_main_~y~0_7) (< 0 v_ULTIMATE.start_main_~z~0_7)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_7} AuxVars[] AssignedVars[] 5#L17true [42] L17-->L17-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_10 (+ v_ULTIMATE.start_main_~y~0_11 (- 1))) (> 0 v_ULTIMATE.start_main_~y~0_11) (= v_ULTIMATE.start_main_~x~0_8 (+ v_ULTIMATE.start_main_~x~0_9 1))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 3#L17-2true [2020-06-22 08:24:10,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:24:10,905 INFO L82 PathProgramCache]: Analyzing trace with hash 58, now seen corresponding path program 1 times [2020-06-22 08:24:10,907 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 08:24:10,907 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 08:24:10,936 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:24:10,936 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 08:24:10,937 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:24:10,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:24:10,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:24:10,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:24:10,983 INFO L82 PathProgramCache]: Analyzing trace with hash 2088, now seen corresponding path program 1 times [2020-06-22 08:24:10,983 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 08:24:10,983 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 08:24:10,985 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:24:10,985 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 08:24:10,985 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:24:10,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 08:24:11,035 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 08:24:11,037 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 08:24:11,055 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-06-22 08:24:11,060 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-06-22 08:24:11,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-06-22 08:24:11,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-06-22 08:24:11,077 INFO L87 Difference]: Start difference. First operand 3 states. Second operand 3 states. [2020-06-22 08:24:11,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 08:24:11,106 INFO L93 Difference]: Finished difference Result 4 states and 7 transitions. [2020-06-22 08:24:11,107 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-06-22 08:24:11,110 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 4 states and 7 transitions. [2020-06-22 08:24:11,111 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 08:24:11,115 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 4 states to 4 states and 7 transitions. [2020-06-22 08:24:11,116 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2020-06-22 08:24:11,117 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2020-06-22 08:24:11,117 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 7 transitions. [2020-06-22 08:24:11,118 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 08:24:11,118 INFO L706 BuchiCegarLoop]: Abstraction has 4 states and 7 transitions. [2020-06-22 08:24:11,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4 states and 7 transitions. [2020-06-22 08:24:11,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4 to 3. [2020-06-22 08:24:11,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-06-22 08:24:11,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2020-06-22 08:24:11,148 INFO L729 BuchiCegarLoop]: Abstraction has 3 states and 5 transitions. [2020-06-22 08:24:11,148 INFO L609 BuchiCegarLoop]: Abstraction has 3 states and 5 transitions. [2020-06-22 08:24:11,148 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2020-06-22 08:24:11,148 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states and 5 transitions. [2020-06-22 08:24:11,149 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 08:24:11,149 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 08:24:11,149 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 08:24:11,149 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 08:24:11,149 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 08:24:11,150 INFO L794 eck$LassoCheckResult]: Stem: 18#ULTIMATE.startENTRY [27] ULTIMATE.startENTRY-->L17-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~res~0_1 0) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~z~0_1 v_ULTIMATE.start_main_~y~0_1)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~res~0=v_ULTIMATE.start_main_~res~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~res~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 16#L17-2 [2020-06-22 08:24:11,150 INFO L796 eck$LassoCheckResult]: Loop: 16#L17-2 [35] L17-2-->L17: Formula: (and (= 0 v_ULTIMATE.start_main_~y~0_7) (< 0 v_ULTIMATE.start_main_~z~0_7)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_7} AuxVars[] AssignedVars[] 17#L17 [43] L17-->L17-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_10 (+ v_ULTIMATE.start_main_~y~0_11 (- 1))) (< 0 v_ULTIMATE.start_main_~y~0_11) (= v_ULTIMATE.start_main_~x~0_8 (+ v_ULTIMATE.start_main_~x~0_9 1))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 16#L17-2 [2020-06-22 08:24:11,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:24:11,150 INFO L82 PathProgramCache]: Analyzing trace with hash 58, now seen corresponding path program 2 times [2020-06-22 08:24:11,151 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 08:24:11,151 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 08:24:11,152 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:24:11,152 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 08:24:11,153 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:24:11,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:24:11,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:24:11,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:24:11,159 INFO L82 PathProgramCache]: Analyzing trace with hash 2089, now seen corresponding path program 1 times [2020-06-22 08:24:11,159 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 08:24:11,159 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 08:24:11,160 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:24:11,160 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 08:24:11,160 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:24:11,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 08:24:11,173 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 08:24:11,173 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 08:24:11,173 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-06-22 08:24:11,174 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-06-22 08:24:11,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-06-22 08:24:11,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-06-22 08:24:11,174 INFO L87 Difference]: Start difference. First operand 3 states and 5 transitions. cyclomatic complexity: 3 Second operand 3 states. [2020-06-22 08:24:11,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 08:24:11,187 INFO L93 Difference]: Finished difference Result 4 states and 6 transitions. [2020-06-22 08:24:11,188 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-06-22 08:24:11,188 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 4 states and 6 transitions. [2020-06-22 08:24:11,189 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 08:24:11,189 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 4 states to 4 states and 6 transitions. [2020-06-22 08:24:11,189 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2020-06-22 08:24:11,190 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2020-06-22 08:24:11,190 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 6 transitions. [2020-06-22 08:24:11,190 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 08:24:11,190 INFO L706 BuchiCegarLoop]: Abstraction has 4 states and 6 transitions. [2020-06-22 08:24:11,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4 states and 6 transitions. [2020-06-22 08:24:11,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4 to 4. [2020-06-22 08:24:11,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-06-22 08:24:11,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions. [2020-06-22 08:24:11,192 INFO L729 BuchiCegarLoop]: Abstraction has 4 states and 6 transitions. [2020-06-22 08:24:11,192 INFO L609 BuchiCegarLoop]: Abstraction has 4 states and 6 transitions. [2020-06-22 08:24:11,192 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2020-06-22 08:24:11,192 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states and 6 transitions. [2020-06-22 08:24:11,192 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 08:24:11,192 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 08:24:11,192 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 08:24:11,193 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 08:24:11,193 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 08:24:11,193 INFO L794 eck$LassoCheckResult]: Stem: 32#ULTIMATE.startENTRY [27] ULTIMATE.startENTRY-->L17-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~res~0_1 0) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~z~0_1 v_ULTIMATE.start_main_~y~0_1)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~res~0=v_ULTIMATE.start_main_~res~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~res~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 29#L17-2 [2020-06-22 08:24:11,194 INFO L796 eck$LassoCheckResult]: Loop: 29#L17-2 [35] L17-2-->L17: Formula: (and (= 0 v_ULTIMATE.start_main_~y~0_7) (< 0 v_ULTIMATE.start_main_~z~0_7)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_7} AuxVars[] AssignedVars[] 30#L17 [29] L17-->L17-2: Formula: (and (= v_ULTIMATE.start_main_~res~0_6 (+ v_ULTIMATE.start_main_~res~0_7 1)) (= 0 v_ULTIMATE.start_main_~y~0_9) (= v_ULTIMATE.start_main_~y~0_8 v_ULTIMATE.start_main_~z~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~res~0=v_ULTIMATE.start_main_~res~0_7, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~res~0=v_ULTIMATE.start_main_~res~0_6, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~res~0, ULTIMATE.start_main_~y~0] 29#L17-2 [2020-06-22 08:24:11,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:24:11,194 INFO L82 PathProgramCache]: Analyzing trace with hash 58, now seen corresponding path program 3 times [2020-06-22 08:24:11,194 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 08:24:11,194 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 08:24:11,196 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:24:11,196 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 08:24:11,196 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:24:11,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:24:11,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:24:11,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:24:11,202 INFO L82 PathProgramCache]: Analyzing trace with hash 2075, now seen corresponding path program 1 times [2020-06-22 08:24:11,202 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 08:24:11,202 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 08:24:11,203 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:24:11,203 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 08:24:11,203 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:24:11,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:24:11,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:24:11,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:24:11,211 INFO L82 PathProgramCache]: Analyzing trace with hash 56852, now seen corresponding path program 1 times [2020-06-22 08:24:11,211 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 08:24:11,211 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 08:24:11,212 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:24:11,212 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 08:24:11,213 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:24:11,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 08:24:11,258 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 08:24:11,258 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 08:24:11,259 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-06-22 08:24:11,292 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 08:24:11,293 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 08:24:11,293 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 08:24:11,294 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 08:24:11,294 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 08:24:11,294 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 08:24:11,294 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 08:24:11,294 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 08:24:11,294 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-06-22 08:24:11,295 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 08:24:11,295 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 08:24:11,313 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 08:24:11,322 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 08:24:11,326 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 08:24:11,330 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 08:24:11,432 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 08:24:11,433 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 08:24:11,442 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 08:24:11,443 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 08:24:11,477 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 08:24:11,477 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 08:24:11,483 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 08:24:11,484 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 08:24:11,512 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 08:24:11,512 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 08:24:11,520 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 08:24:11,520 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 08:24:11,550 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 08:24:11,551 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 08:24:11,569 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 08:24:11,569 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~res~0=0} Honda state: {ULTIMATE.start_main_~res~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~res~0=7}, {ULTIMATE.start_main_~res~0=-7}, {ULTIMATE.start_main_~res~0=1}] Lambdas: [2, 1, 1] Nus: [1, 0] No working directory specified, using /export/starexec/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 08:24:11,598 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 08:24:11,599 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 08:24:11,633 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 08:24:11,633 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 08:24:11,687 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 08:24:11,690 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 08:24:11,690 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 08:24:11,690 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 08:24:11,690 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 08:24:11,690 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 08:24:11,691 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 08:24:11,691 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 08:24:11,691 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 08:24:11,691 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-06-22 08:24:11,691 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 08:24:11,691 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 08:24:11,693 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 08:24:11,697 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 08:24:11,700 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 08:24:11,703 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 08:24:11,766 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 08:24:11,772 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 08:24:11,774 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 08:24:11,775 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 08:24:11,776 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 08:24:11,776 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 08:24:11,776 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 08:24:11,780 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 08:24:11,780 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 08:24:11,786 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 08:24:11,787 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 08:24:11,787 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 08:24:11,788 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 08:24:11,788 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 08:24:11,788 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 08:24:11,790 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 08:24:11,790 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 08:24:11,798 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 08:24:11,799 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 08:24:11,799 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 08:24:11,800 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 08:24:11,800 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 08:24:11,800 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 08:24:11,800 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 08:24:11,801 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 08:24:11,801 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 08:24:11,805 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 08:24:11,806 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 08:24:11,806 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 08:24:11,806 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 08:24:11,807 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 08:24:11,807 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 08:24:11,807 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 08:24:11,808 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 08:24:11,808 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 08:24:11,814 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 08:24:11,820 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 08:24:11,821 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2020-06-22 08:24:11,823 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 08:24:11,823 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 08:24:11,823 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 08:24:11,824 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = -2*ULTIMATE.start_main_~y~0 + 1 Supporting invariants [] [2020-06-22 08:24:11,825 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 08:24:11,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:24:11,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 08:24:11,865 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 08:24:11,866 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 08:24:11,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 08:24:11,876 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjunts are in the unsatisfiable core [2020-06-22 08:24:11,877 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 08:24:11,909 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 08:24:11,932 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-06-22 08:24:11,935 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-06-22 08:24:11,936 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 4 states and 6 transitions. cyclomatic complexity: 3 Second operand 3 states. [2020-06-22 08:24:12,077 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 4 states and 6 transitions. cyclomatic complexity: 3. Second operand 3 states. Result 13 states and 23 transitions. Complement of second has 9 states. [2020-06-22 08:24:12,078 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 2 accepting loop states [2020-06-22 08:24:12,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-06-22 08:24:12,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 17 transitions. [2020-06-22 08:24:12,081 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 17 transitions. Stem has 1 letters. Loop has 2 letters. [2020-06-22 08:24:12,082 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 08:24:12,082 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 17 transitions. Stem has 3 letters. Loop has 2 letters. [2020-06-22 08:24:12,083 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 08:24:12,083 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 17 transitions. Stem has 1 letters. Loop has 4 letters. [2020-06-22 08:24:12,083 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 08:24:12,088 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 23 transitions. [2020-06-22 08:24:12,089 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 08:24:12,090 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 9 states and 15 transitions. [2020-06-22 08:24:12,090 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2020-06-22 08:24:12,090 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2020-06-22 08:24:12,091 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 15 transitions. [2020-06-22 08:24:12,091 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 08:24:12,091 INFO L706 BuchiCegarLoop]: Abstraction has 9 states and 15 transitions. [2020-06-22 08:24:12,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 15 transitions. [2020-06-22 08:24:12,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2020-06-22 08:24:12,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-06-22 08:24:12,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 14 transitions. [2020-06-22 08:24:12,093 INFO L729 BuchiCegarLoop]: Abstraction has 8 states and 14 transitions. [2020-06-22 08:24:12,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-06-22 08:24:12,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-06-22 08:24:12,094 INFO L87 Difference]: Start difference. First operand 8 states and 14 transitions. Second operand 3 states. [2020-06-22 08:24:12,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 08:24:12,113 INFO L93 Difference]: Finished difference Result 10 states and 15 transitions. [2020-06-22 08:24:12,114 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-06-22 08:24:12,115 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 15 transitions. [2020-06-22 08:24:12,116 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-06-22 08:24:12,117 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 10 states and 15 transitions. [2020-06-22 08:24:12,117 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2020-06-22 08:24:12,117 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2020-06-22 08:24:12,117 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 15 transitions. [2020-06-22 08:24:12,118 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 08:24:12,118 INFO L706 BuchiCegarLoop]: Abstraction has 10 states and 15 transitions. [2020-06-22 08:24:12,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 15 transitions. [2020-06-22 08:24:12,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2020-06-22 08:24:12,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-06-22 08:24:12,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 13 transitions. [2020-06-22 08:24:12,119 INFO L729 BuchiCegarLoop]: Abstraction has 9 states and 13 transitions. [2020-06-22 08:24:12,120 INFO L609 BuchiCegarLoop]: Abstraction has 9 states and 13 transitions. [2020-06-22 08:24:12,120 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2020-06-22 08:24:12,120 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 13 transitions. [2020-06-22 08:24:12,120 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-06-22 08:24:12,120 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 08:24:12,121 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 08:24:12,121 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-06-22 08:24:12,121 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 08:24:12,121 INFO L794 eck$LassoCheckResult]: Stem: 114#ULTIMATE.startENTRY [27] ULTIMATE.startENTRY-->L17-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~res~0_1 0) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~z~0_1 v_ULTIMATE.start_main_~y~0_1)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~res~0=v_ULTIMATE.start_main_~res~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~res~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 115#L17-2 [36] L17-2-->L17: Formula: (and (< 0 v_ULTIMATE.start_main_~x~0_7) (< 0 v_ULTIMATE.start_main_~y~0_7) (< 0 v_ULTIMATE.start_main_~z~0_7)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 112#L17 [43] L17-->L17-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_10 (+ v_ULTIMATE.start_main_~y~0_11 (- 1))) (< 0 v_ULTIMATE.start_main_~y~0_11) (= v_ULTIMATE.start_main_~x~0_8 (+ v_ULTIMATE.start_main_~x~0_9 1))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 117#L17-2 [2020-06-22 08:24:12,122 INFO L796 eck$LassoCheckResult]: Loop: 117#L17-2 [36] L17-2-->L17: Formula: (and (< 0 v_ULTIMATE.start_main_~x~0_7) (< 0 v_ULTIMATE.start_main_~y~0_7) (< 0 v_ULTIMATE.start_main_~z~0_7)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 110#L17 [43] L17-->L17-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_10 (+ v_ULTIMATE.start_main_~y~0_11 (- 1))) (< 0 v_ULTIMATE.start_main_~y~0_11) (= v_ULTIMATE.start_main_~x~0_8 (+ v_ULTIMATE.start_main_~x~0_9 1))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 117#L17-2 [2020-06-22 08:24:12,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:24:12,122 INFO L82 PathProgramCache]: Analyzing trace with hash 56897, now seen corresponding path program 1 times [2020-06-22 08:24:12,123 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 08:24:12,123 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 08:24:12,124 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:24:12,124 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 08:24:12,125 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:24:12,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:24:12,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:24:12,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:24:12,136 INFO L82 PathProgramCache]: Analyzing trace with hash 2120, now seen corresponding path program 1 times [2020-06-22 08:24:12,136 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 08:24:12,136 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 08:24:12,137 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:24:12,137 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 08:24:12,138 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:24:12,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:24:12,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:24:12,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:24:12,144 INFO L82 PathProgramCache]: Analyzing trace with hash 54679176, now seen corresponding path program 2 times [2020-06-22 08:24:12,144 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 08:24:12,145 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 08:24:12,146 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:24:12,146 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 08:24:12,146 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:24:12,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:24:12,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:24:12,183 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 08:24:12,183 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 08:24:12,183 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 08:24:12,183 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 08:24:12,184 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 08:24:12,184 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 08:24:12,184 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 08:24:12,184 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 08:24:12,184 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2020-06-22 08:24:12,184 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 08:24:12,184 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 08:24:12,186 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 08:24:12,193 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 08:24:12,196 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 08:24:12,202 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 08:24:12,206 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 08:24:12,270 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 08:24:12,270 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 08:24:12,275 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 08:24:12,275 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 08:24:12,303 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 08:24:12,303 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 08:24:12,309 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 08:24:12,309 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 08:24:12,337 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 08:24:12,337 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 08:24:12,344 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 08:24:12,344 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 08:24:12,377 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 08:24:12,377 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 08:24:12,388 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 08:24:12,388 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=1} Honda state: {ULTIMATE.start_main_~x~0=1} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0=0}, {ULTIMATE.start_main_~x~0=1}, {ULTIMATE.start_main_~x~0=0}] Lambdas: [0, 1, 0] Nus: [0, 0] 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 08:24:12,419 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 08:24:12,420 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 08:24:12,449 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 08:24:12,449 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~z~0=1} Honda state: {ULTIMATE.start_main_~z~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 08:24:12,459 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 08:24:12,460 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 08:24:12,492 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 08:24:12,492 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 08:24:12,523 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 08:24:12,525 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 08:24:12,526 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 08:24:12,526 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 08:24:12,526 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 08:24:12,526 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 08:24:12,526 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 08:24:12,526 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 08:24:12,526 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 08:24:12,526 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2020-06-22 08:24:12,527 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 08:24:12,527 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 08:24:12,528 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 08:24:12,533 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 08:24:12,536 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 08:24:12,543 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 08:24:12,547 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 08:24:12,615 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 08:24:12,615 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 08:24:12,616 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 08:24:12,617 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 08:24:12,617 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 08:24:12,617 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 08:24:12,618 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 08:24:12,619 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 08:24:12,619 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 08:24:12,623 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 08:24:12,624 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 08:24:12,624 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 08:24:12,624 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 08:24:12,624 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 08:24:12,624 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 08:24:12,626 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 08:24:12,626 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 08:24:12,632 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 08:24:12,632 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 08:24:12,633 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 08:24:12,633 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 08:24:12,633 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 08:24:12,633 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 08:24:12,633 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 08:24:12,634 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 08:24:12,634 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 08:24:12,638 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 08:24:12,638 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 08:24:12,640 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 08:24:12,640 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 08:24:12,640 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 08:24:12,640 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 08:24:12,640 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 08:24:12,641 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 08:24:12,641 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 08:24:12,642 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 08:24:12,642 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 08:24:12,643 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 08:24:12,643 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 08:24:12,643 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 08:24:12,644 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 08:24:12,644 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 08:24:12,644 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 08:24:12,645 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 08:24:12,648 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 08:24:12,650 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 08:24:12,650 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 08:24:12,651 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 08:24:12,651 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 08:24:12,651 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 08:24:12,651 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2020-06-22 08:24:12,652 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 08:24:12,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:24:12,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 08:24:12,675 INFO L256 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 08:24:12,676 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 08:24:12,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 08:24:12,680 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 08:24:12,680 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 08:24:12,691 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 08:24:12,702 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-06-22 08:24:12,703 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 08:24:12,703 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 9 states and 13 transitions. cyclomatic complexity: 6 Second operand 3 states. [2020-06-22 08:24:12,726 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 9 states and 13 transitions. cyclomatic complexity: 6. Second operand 3 states. Result 20 states and 31 transitions. Complement of second has 12 states. [2020-06-22 08:24:12,727 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-06-22 08:24:12,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-06-22 08:24:12,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 14 transitions. [2020-06-22 08:24:12,728 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 3 letters. Loop has 2 letters. [2020-06-22 08:24:12,728 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 08:24:12,728 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 5 letters. Loop has 2 letters. [2020-06-22 08:24:12,729 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 08:24:12,729 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 3 letters. Loop has 4 letters. [2020-06-22 08:24:12,729 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 08:24:12,730 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 31 transitions. [2020-06-22 08:24:12,731 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-06-22 08:24:12,732 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 11 states and 16 transitions. [2020-06-22 08:24:12,732 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2020-06-22 08:24:12,732 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2020-06-22 08:24:12,732 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 16 transitions. [2020-06-22 08:24:12,733 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 08:24:12,733 INFO L706 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2020-06-22 08:24:12,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 16 transitions. [2020-06-22 08:24:12,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2020-06-22 08:24:12,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-06-22 08:24:12,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 16 transitions. [2020-06-22 08:24:12,735 INFO L729 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2020-06-22 08:24:12,735 INFO L609 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2020-06-22 08:24:12,735 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2020-06-22 08:24:12,735 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 16 transitions. [2020-06-22 08:24:12,735 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-06-22 08:24:12,735 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 08:24:12,736 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 08:24:12,736 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-06-22 08:24:12,736 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-06-22 08:24:12,737 INFO L794 eck$LassoCheckResult]: Stem: 188#ULTIMATE.startENTRY [27] ULTIMATE.startENTRY-->L17-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~res~0_1 0) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~z~0_1 v_ULTIMATE.start_main_~y~0_1)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~res~0=v_ULTIMATE.start_main_~res~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~res~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 189#L17-2 [36] L17-2-->L17: Formula: (and (< 0 v_ULTIMATE.start_main_~x~0_7) (< 0 v_ULTIMATE.start_main_~y~0_7) (< 0 v_ULTIMATE.start_main_~z~0_7)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 186#L17 [43] L17-->L17-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_10 (+ v_ULTIMATE.start_main_~y~0_11 (- 1))) (< 0 v_ULTIMATE.start_main_~y~0_11) (= v_ULTIMATE.start_main_~x~0_8 (+ v_ULTIMATE.start_main_~x~0_9 1))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 190#L17-2 [2020-06-22 08:24:12,737 INFO L796 eck$LassoCheckResult]: Loop: 190#L17-2 [35] L17-2-->L17: Formula: (and (= 0 v_ULTIMATE.start_main_~y~0_7) (< 0 v_ULTIMATE.start_main_~z~0_7)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_7} AuxVars[] AssignedVars[] 193#L17 [29] L17-->L17-2: Formula: (and (= v_ULTIMATE.start_main_~res~0_6 (+ v_ULTIMATE.start_main_~res~0_7 1)) (= 0 v_ULTIMATE.start_main_~y~0_9) (= v_ULTIMATE.start_main_~y~0_8 v_ULTIMATE.start_main_~z~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~res~0=v_ULTIMATE.start_main_~res~0_7, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~res~0=v_ULTIMATE.start_main_~res~0_6, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~res~0, ULTIMATE.start_main_~y~0] 183#L17-2 [36] L17-2-->L17: Formula: (and (< 0 v_ULTIMATE.start_main_~x~0_7) (< 0 v_ULTIMATE.start_main_~y~0_7) (< 0 v_ULTIMATE.start_main_~z~0_7)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 184#L17 [43] L17-->L17-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_10 (+ v_ULTIMATE.start_main_~y~0_11 (- 1))) (< 0 v_ULTIMATE.start_main_~y~0_11) (= v_ULTIMATE.start_main_~x~0_8 (+ v_ULTIMATE.start_main_~x~0_9 1))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 190#L17-2 [2020-06-22 08:24:12,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:24:12,737 INFO L82 PathProgramCache]: Analyzing trace with hash 56897, now seen corresponding path program 3 times [2020-06-22 08:24:12,737 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 08:24:12,738 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 08:24:12,739 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:24:12,739 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 08:24:12,739 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:24:12,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:24:12,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:24:12,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:24:12,748 INFO L82 PathProgramCache]: Analyzing trace with hash 1995234, now seen corresponding path program 1 times [2020-06-22 08:24:12,748 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 08:24:12,748 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 08:24:12,749 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:24:12,749 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 08:24:12,750 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:24:12,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:24:12,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:24:12,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:24:12,756 INFO L82 PathProgramCache]: Analyzing trace with hash 1007038498, now seen corresponding path program 1 times [2020-06-22 08:24:12,756 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 08:24:12,756 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 08:24:12,757 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:24:12,757 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 08:24:12,757 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:24:12,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:24:12,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:24:12,817 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 08:24:12,817 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 08:24:12,817 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 08:24:12,817 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 08:24:12,818 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 08:24:12,818 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 08:24:12,818 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 08:24:12,818 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 08:24:12,818 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration5_Loop [2020-06-22 08:24:12,819 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 08:24:12,819 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 08:24:12,820 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 08:24:12,826 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 08:24:12,829 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 08:24:12,836 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 08:24:12,839 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 08:24:12,925 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 08:24:12,926 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 08:24:12,929 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 08:24:12,929 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 16 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 16 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 08:24:12,958 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 08:24:12,958 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 08:24:12,968 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 08:24:12,968 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=1} Honda state: {ULTIMATE.start_main_~x~0=1} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0=0}, {ULTIMATE.start_main_~x~0=1}, {ULTIMATE.start_main_~x~0=0}] Lambdas: [0, 1, 0] Nus: [0, 0] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 17 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 17 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 08:24:12,996 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 08:24:12,996 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 08:24:13,023 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 08:24:13,023 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 18 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 18 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 08:24:13,028 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 08:24:13,028 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 08:24:13,032 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 08:24:13,033 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=0, ULTIMATE.start_main_~z~0=1} Honda state: {ULTIMATE.start_main_~y~0=0, ULTIMATE.start_main_~z~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 19 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 19 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 08:24:13,066 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 08:24:13,066 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 08:24:13,093 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 08:24:13,093 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_5=0} Honda state: {v_rep~unnamed0~0~false_5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 20 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 20 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 08:24:13,098 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 08:24:13,098 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 21 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 21 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 08:24:13,128 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 08:24:13,128 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 08:24:13,145 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 08:24:13,145 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~res~0=0} Honda state: {ULTIMATE.start_main_~res~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~res~0=7}, {ULTIMATE.start_main_~res~0=-7}, {ULTIMATE.start_main_~res~0=1}] Lambdas: [2, 1, 1] Nus: [1, 0] [2020-06-22 08:24:13,209 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 08:24:13,210 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 08:24:13,210 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 08:24:13,210 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 08:24:13,210 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 08:24:13,210 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 08:24:13,210 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 08:24:13,210 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 08:24:13,210 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration5_Lasso [2020-06-22 08:24:13,210 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 08:24:13,211 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 08:24:13,212 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 08:24:13,216 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 08:24:13,218 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 08:24:13,224 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 08:24:13,226 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 08:24:13,227 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 08:24:13,230 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 08:24:13,240 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 08:24:13,320 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 08:24:13,320 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 22 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 22 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 08:24:13,329 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 08:24:13,329 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 23 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 23 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 08:24:13,359 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 08:24:13,359 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 08:24:13,376 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 08:24:13,376 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~res~0=0} Honda state: {ULTIMATE.start_main_~res~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~res~0=7}, {ULTIMATE.start_main_~res~0=-7}, {ULTIMATE.start_main_~res~0=1}] Lambdas: [2, 1, 1] Nus: [1, 0] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 24 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 24 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 08:24:13,404 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 08:24:13,404 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 08:24:13,408 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 08:24:13,408 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 25 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 25 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 08:24:13,437 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 08:24:13,437 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 26 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 26 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 08:24:13,467 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 08:24:13,467 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 08:24:13,477 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 08:24:13,478 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=0} Honda state: {ULTIMATE.start_main_~x~0=17} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0=0}, {ULTIMATE.start_main_~x~0=0}, {ULTIMATE.start_main_~x~0=1}] Lambdas: [0, 0, 1] Nus: [0, 0] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 27 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 27 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 08:24:13,506 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 08:24:13,506 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 08:24:13,510 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 08:24:13,510 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1=0} Honda state: {ULTIMATE.start_main_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 28 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 28 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 08:24:13,536 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 08:24:13,536 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 08:24:13,539 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 08:24:13,540 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 29 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 29 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 08:24:13,565 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 08:24:13,566 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 08:24:13,592 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 08:24:13,592 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_6=0} Honda state: {v_rep~unnamed0~0~false_6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 30 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 30 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 08:24:13,596 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 08:24:13,596 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 08:24:13,601 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 08:24:13,601 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=0, ULTIMATE.start_main_~z~0=0} Honda state: {ULTIMATE.start_main_~y~0=0, ULTIMATE.start_main_~z~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 31 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 31 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 08:24:13,628 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 08:24:13,628 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 08:24:13,655 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 08:24:13,656 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_6=1} Honda state: {v_rep~unnamed0~0~true_6=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2020-06-22 08:24:13,665 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 08:24:13,666 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 08:24:13,667 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 08:24:13,667 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 08:24:13,667 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 08:24:13,668 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 08:24:13,668 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 08:24:13,669 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 08:24:13,669 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 08:24:13,669 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 08:24:13,681 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 08:24:13 BasicIcfg [2020-06-22 08:24:13,681 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-22 08:24:13,682 INFO L168 Benchmark]: Toolchain (without parser) took 3661.07 ms. Allocated memory was 649.6 MB in the beginning and 756.0 MB in the end (delta: 106.4 MB). Free memory was 564.3 MB in the beginning and 602.2 MB in the end (delta: -38.0 MB). Peak memory consumption was 225.8 MB. Max. memory is 50.3 GB. [2020-06-22 08:24:13,683 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 649.6 MB. Free memory is still 585.8 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 08:24:13,684 INFO L168 Benchmark]: CACSL2BoogieTranslator took 279.91 ms. Allocated memory was 649.6 MB in the beginning and 683.1 MB in the end (delta: 33.6 MB). Free memory was 564.3 MB in the beginning and 650.8 MB in the end (delta: -86.5 MB). Peak memory consumption was 28.9 MB. Max. memory is 50.3 GB. [2020-06-22 08:24:13,684 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.02 ms. Allocated memory is still 683.1 MB. Free memory was 650.8 MB in the beginning and 648.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 50.3 GB. [2020-06-22 08:24:13,685 INFO L168 Benchmark]: Boogie Preprocessor took 19.05 ms. Allocated memory is still 683.1 MB. Free memory was 648.1 MB in the beginning and 646.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-06-22 08:24:13,685 INFO L168 Benchmark]: RCFGBuilder took 205.95 ms. Allocated memory is still 683.1 MB. Free memory was 646.7 MB in the beginning and 631.9 MB in the end (delta: 14.8 MB). Peak memory consumption was 14.8 MB. Max. memory is 50.3 GB. [2020-06-22 08:24:13,686 INFO L168 Benchmark]: BlockEncodingV2 took 86.44 ms. Allocated memory is still 683.1 MB. Free memory was 631.9 MB in the beginning and 626.5 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. [2020-06-22 08:24:13,686 INFO L168 Benchmark]: TraceAbstraction took 162.82 ms. Allocated memory is still 683.1 MB. Free memory was 626.5 MB in the beginning and 618.4 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 50.3 GB. [2020-06-22 08:24:13,687 INFO L168 Benchmark]: BuchiAutomizer took 2867.66 ms. Allocated memory was 683.1 MB in the beginning and 756.0 MB in the end (delta: 72.9 MB). Free memory was 618.4 MB in the beginning and 602.2 MB in the end (delta: 16.1 MB). Peak memory consumption was 246.4 MB. Max. memory is 50.3 GB. [2020-06-22 08:24:13,690 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 7 locations, 9 edges - StatisticsResult: Encoded RCFG 3 locations, 6 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 649.6 MB. Free memory is still 585.8 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 279.91 ms. Allocated memory was 649.6 MB in the beginning and 683.1 MB in the end (delta: 33.6 MB). Free memory was 564.3 MB in the beginning and 650.8 MB in the end (delta: -86.5 MB). Peak memory consumption was 28.9 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 34.02 ms. Allocated memory is still 683.1 MB. Free memory was 650.8 MB in the beginning and 648.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 19.05 ms. Allocated memory is still 683.1 MB. Free memory was 648.1 MB in the beginning and 646.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * RCFGBuilder took 205.95 ms. Allocated memory is still 683.1 MB. Free memory was 646.7 MB in the beginning and 631.9 MB in the end (delta: 14.8 MB). Peak memory consumption was 14.8 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 86.44 ms. Allocated memory is still 683.1 MB. Free memory was 631.9 MB in the beginning and 626.5 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. * TraceAbstraction took 162.82 ms. Allocated memory is still 683.1 MB. Free memory was 626.5 MB in the beginning and 618.4 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 2867.66 ms. Allocated memory was 683.1 MB in the beginning and 756.0 MB in the end (delta: 72.9 MB). Free memory was 618.4 MB in the beginning and 602.2 MB in the end (delta: 16.1 MB). Peak memory consumption was 246.4 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false * 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: 15]: 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 (3 trivial, 0 deterministic, 2 nondeterministic) and one nonterminating remainder module.One nondeterministic module has affine ranking function -2 * y + 1 and consists of 6 locations. One nondeterministic module has affine ranking function y and consists of 5 locations. 3 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 11 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.8s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 2.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 3 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 11 states and ocurred in iteration 4. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 7 SDtfs, 19 SDslu, 0 SDs, 0 SdLazy, 63 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT1 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital23 mio100 ax156 hnf100 lsp35 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq169 hnf91 smp100 dnf100 smp100 tf109 neg100 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 13ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 14 LassoNonterminationAnalysisSatUnbounded: 6 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.7s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - GeometricNonTerminationArgumentResult [Line: 15]: Nontermination argument in form of an infinite program execution. [2020-06-22 08:24:13,702 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 08:24:13,702 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 08:24:13,703 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 08:24:13,703 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 08:24:13,704 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 08:24:13,704 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 08:24:13,704 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 08:24:13,705 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 08:24:13,705 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 08:24:13,705 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 08:24:13,706 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 08:24:13,706 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 08:24:13,707 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 08:24:13,707 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 08:24:13,707 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 08:24:13,708 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 08:24:13,708 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 08:24:13,708 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 08:24:13,709 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 08:24:13,709 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false Nontermination argument in form of an infinite execution {|ULTIMATE.start_main_#t~nondet0|=0, |ULTIMATE.start_main_#t~nondet1|=0, ULTIMATE.start_main_~res~0=0, |ULTIMATE.start_main_#res|=0, ULTIMATE.start_main_~y~0=0, ULTIMATE.start_main_~z~0=0, ~unnamed0~0~true=1, ~unnamed0~0~false=0, ULTIMATE.start_main_~x~0=0} {res=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@73ab3501=0, \result=0, ~unnamed0~0~true=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@b804025=0, z=1, ~unnamed0~0~false=0, x=17, y=0} {res=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@73ab3501=0, \result=0, ~unnamed0~0~true=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@b804025=0, z=1, ~unnamed0~0~false=0, x=18, y=0} {res=2, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@73ab3501=0, \result=0, ~unnamed0~0~true=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@b804025=0, z=1, ~unnamed0~0~false=0, x=19, y=0} {res=3, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@73ab3501=0, \result=0, ~unnamed0~0~true=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@b804025=0, z=1, ~unnamed0~0~false=0, x=20, y=0} {res=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@73ab3501=0, \result=0, ~unnamed0~0~true=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@b804025=0, z=1, ~unnamed0~0~false=0, x=21, y=0} - StatisticsResult: NonterminationArgumentStatistics Unbounded Execution 4GEVs Lambdas: [2, 1, 1, 0, 0, 1] Mus: [1, 0, 0, 0, 0] - NonterminatingLassoResult [Line: 15]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int x; [L7] int y; [L8] int z; [L9] int res; [L10] x = __VERIFIER_nondet_int() [L11] y = __VERIFIER_nondet_int() [L12] z = y [L13] res = 0 [L15] COND TRUE z > 0 && (y == 0 || y > 0 && x > 0) [L17] COND FALSE !(y == 0) [L22] x = x + 1 [L23] y = y - 1 Loop: [L15] COND TRUE z > 0 && (y == 0 || y > 0 && x > 0) [L17] COND TRUE y == 0 [L18] res = res + 1 [L19] y = z [L15] COND TRUE z > 0 && (y == 0 || y > 0 && x > 0) [L17] COND FALSE !(y == 0) [L22] x = x + 1 [L23] y = y - 1 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! !SESSION 2020-06-22 08:24:06.831 ----------------------------------------------- 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 08:24:13.935 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check