NO Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-21 23:52:55,804 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-21 23:52:55,806 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-21 23:52:55,817 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-21 23:52:55,817 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-21 23:52:55,818 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-21 23:52:55,819 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-21 23:52:55,821 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-21 23:52:55,822 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-21 23:52:55,823 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-21 23:52:55,824 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-21 23:52:55,824 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-21 23:52:55,825 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-21 23:52:55,826 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-21 23:52:55,827 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-21 23:52:55,828 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-21 23:52:55,828 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-21 23:52:55,830 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-21 23:52:55,832 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-21 23:52:55,833 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-21 23:52:55,834 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-21 23:52:55,835 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-21 23:52:55,837 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-21 23:52:55,837 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-21 23:52:55,838 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-21 23:52:55,838 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-21 23:52:55,839 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-21 23:52:55,840 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-21 23:52:55,840 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-21 23:52:55,840 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-21 23:52:55,841 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-21 23:52:55,842 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-21 23:52:55,843 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-21 23:52:55,843 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-21 23:52:55,844 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-21 23:52:55,844 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-21 23:52:55,844 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-21 23:52:55,845 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-21 23:52:55,845 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-21 23:52:55,846 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-06-21 23:52:55,860 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-21 23:52:55,860 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-21 23:52:55,861 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-21 23:52:55,861 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-21 23:52:55,862 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-21 23:52:55,862 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-21 23:52:55,862 INFO L133 SettingsManager]: * Use SBE=true [2020-06-21 23:52:55,862 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-21 23:52:55,862 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-21 23:52:55,863 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-21 23:52:55,863 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-21 23:52:55,863 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-21 23:52:55,863 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-21 23:52:55,863 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-21 23:52:55,863 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-21 23:52:55,864 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-21 23:52:55,864 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-21 23:52:55,864 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-21 23:52:55,864 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-21 23:52:55,864 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-21 23:52:55,865 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-21 23:52:55,865 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-21 23:52:55,865 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-21 23:52:55,865 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-21 23:52:55,865 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-21 23:52:55,865 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-21 23:52:55,866 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-21 23:52:55,866 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-21 23:52:55,866 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-21 23:52:55,895 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-21 23:52:55,908 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-21 23:52:55,912 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-21 23:52:55,913 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-21 23:52:55,914 INFO L276 PluginConnector]: CDTParser initialized [2020-06-21 23:52:55,914 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-21 23:52:55,984 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/1142f900e1eb4f34b3297e92a8c5e5e6/FLAG37ae70bad [2020-06-21 23:52:56,309 INFO L307 CDTParser]: Found 1 translation units. [2020-06-21 23:52:56,310 INFO L161 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-21 23:52:56,317 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/1142f900e1eb4f34b3297e92a8c5e5e6/FLAG37ae70bad [2020-06-21 23:52:56,724 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/1142f900e1eb4f34b3297e92a8c5e5e6 [2020-06-21 23:52:56,736 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-21 23:52:56,737 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-21 23:52:56,738 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-21 23:52:56,739 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-21 23:52:56,742 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-21 23:52:56,743 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.06 11:52:56" (1/1) ... [2020-06-21 23:52:56,746 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@319c7d51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 11:52:56, skipping insertion in model container [2020-06-21 23:52:56,746 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.06 11:52:56" (1/1) ... [2020-06-21 23:52:56,754 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-21 23:52:56,772 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-21 23:52:56,937 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-21 23:52:56,942 INFO L191 MainTranslator]: Completed pre-run [2020-06-21 23:52:56,959 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-21 23:52:57,042 INFO L195 MainTranslator]: Completed translation [2020-06-21 23:52:57,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 11:52:57 WrapperNode [2020-06-21 23:52:57,043 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-21 23:52:57,044 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-21 23:52:57,044 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-21 23:52:57,044 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-21 23:52:57,054 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 11:52:57" (1/1) ... [2020-06-21 23:52:57,060 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 11:52:57" (1/1) ... [2020-06-21 23:52:57,080 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-21 23:52:57,080 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-21 23:52:57,080 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-21 23:52:57,080 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-21 23:52:57,090 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 11:52:57" (1/1) ... [2020-06-21 23:52:57,091 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 11:52:57" (1/1) ... [2020-06-21 23:52:57,091 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 11:52:57" (1/1) ... [2020-06-21 23:52:57,092 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 11:52:57" (1/1) ... [2020-06-21 23:52:57,094 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 11:52:57" (1/1) ... [2020-06-21 23:52:57,096 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 11:52:57" (1/1) ... [2020-06-21 23:52:57,097 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 11:52:57" (1/1) ... [2020-06-21 23:52:57,098 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-21 23:52:57,099 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-21 23:52:57,099 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-21 23:52:57,099 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-21 23:52:57,100 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 11:52:57" (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 [2020-06-21 23:52:57,168 INFO L130 BoogieDeclarations]: Found specification of procedure id2 [2020-06-21 23:52:57,169 INFO L138 BoogieDeclarations]: Found implementation of procedure id2 [2020-06-21 23:52:57,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-21 23:52:57,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-21 23:52:57,169 INFO L130 BoogieDeclarations]: Found specification of procedure id [2020-06-21 23:52:57,169 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2020-06-21 23:52:57,329 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-21 23:52:57,329 INFO L286 CfgBuilder]: Removed 4 assue(true) statements. [2020-06-21 23:52:57,331 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.06 11:52:57 BoogieIcfgContainer [2020-06-21 23:52:57,331 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-21 23:52:57,331 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-21 23:52:57,332 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-21 23:52:57,334 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-21 23:52:57,335 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.06 11:52:57" (1/1) ... [2020-06-21 23:52:57,354 INFO L313 BlockEncoder]: Initial Icfg 22 locations, 27 edges [2020-06-21 23:52:57,356 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-21 23:52:57,357 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-21 23:52:57,358 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-21 23:52:57,358 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-21 23:52:57,360 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-21 23:52:57,361 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-21 23:52:57,361 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-21 23:52:57,378 INFO L185 BlockEncoder]: Using Use SBE [2020-06-21 23:52:57,395 INFO L200 BlockEncoder]: SBE split 3 edges [2020-06-21 23:52:57,399 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-06-21 23:52:57,401 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-21 23:52:57,410 INFO L100 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2020-06-21 23:52:57,412 INFO L70 RemoveSinkStates]: Removed 6 edges and 5 locations by removing sink states [2020-06-21 23:52:57,414 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-21 23:52:57,414 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-21 23:52:57,414 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-21 23:52:57,415 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-21 23:52:57,415 INFO L313 BlockEncoder]: Encoded RCFG 16 locations, 22 edges [2020-06-21 23:52:57,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 21.06 11:52:57 BasicIcfg [2020-06-21 23:52:57,416 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-21 23:52:57,417 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-21 23:52:57,417 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-21 23:52:57,420 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-21 23:52:57,420 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.06 11:52:56" (1/4) ... [2020-06-21 23:52:57,421 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a41ab45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.06 11:52:57, skipping insertion in model container [2020-06-21 23:52:57,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 11:52:57" (2/4) ... [2020-06-21 23:52:57,422 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a41ab45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.06 11:52:57, skipping insertion in model container [2020-06-21 23:52:57,422 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.06 11:52:57" (3/4) ... [2020-06-21 23:52:57,422 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a41ab45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.06 11:52:57, skipping insertion in model container [2020-06-21 23:52:57,422 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 21.06 11:52:57" (4/4) ... [2020-06-21 23:52:57,424 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-21 23:52:57,434 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-21 23:52:57,442 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-06-21 23:52:57,461 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-06-21 23:52:57,490 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-21 23:52:57,490 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-21 23:52:57,490 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-21 23:52:57,491 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-21 23:52:57,491 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-21 23:52:57,491 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-21 23:52:57,491 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-21 23:52:57,491 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-21 23:52:57,491 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-21 23:52:57,509 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2020-06-21 23:52:57,515 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-06-21 23:52:57,521 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 16 states. [2020-06-21 23:52:57,577 INFO L448 ceAbstractionStarter]: For program point L17(line 17) no Hoare annotation was computed. [2020-06-21 23:52:57,577 INFO L451 ceAbstractionStarter]: At program point L16(line 16) the Hoare annotation is: true [2020-06-21 23:52:57,577 INFO L448 ceAbstractionStarter]: For program point L15(line 15) no Hoare annotation was computed. [2020-06-21 23:52:57,577 INFO L448 ceAbstractionStarter]: For program point L16-1(line 16) no Hoare annotation was computed. [2020-06-21 23:52:57,578 INFO L448 ceAbstractionStarter]: For program point id2EXIT(lines 14 19) no Hoare annotation was computed. [2020-06-21 23:52:57,578 INFO L451 ceAbstractionStarter]: At program point id2ENTRY(lines 14 19) the Hoare annotation is: true [2020-06-21 23:52:57,578 INFO L448 ceAbstractionStarter]: For program point id2FINAL(lines 14 19) no Hoare annotation was computed. [2020-06-21 23:52:57,578 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-06-21 23:52:57,578 INFO L451 ceAbstractionStarter]: At program point L23(line 23) the Hoare annotation is: true [2020-06-21 23:52:57,578 INFO L448 ceAbstractionStarter]: For program point idFINAL(lines 7 12) no Hoare annotation was computed. [2020-06-21 23:52:57,579 INFO L448 ceAbstractionStarter]: For program point idEXIT(lines 7 12) no Hoare annotation was computed. [2020-06-21 23:52:57,579 INFO L448 ceAbstractionStarter]: For program point L10(line 10) no Hoare annotation was computed. [2020-06-21 23:52:57,579 INFO L451 ceAbstractionStarter]: At program point L9(line 9) the Hoare annotation is: true [2020-06-21 23:52:57,579 INFO L448 ceAbstractionStarter]: For program point L8(line 8) no Hoare annotation was computed. [2020-06-21 23:52:57,579 INFO L448 ceAbstractionStarter]: For program point L9-1(line 9) no Hoare annotation was computed. [2020-06-21 23:52:57,579 INFO L451 ceAbstractionStarter]: At program point idENTRY(lines 7 12) the Hoare annotation is: true [2020-06-21 23:52:57,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.06 11:52:57 BasicIcfg [2020-06-21 23:52:57,583 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-21 23:52:57,584 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-21 23:52:57,584 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-21 23:52:57,587 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-21 23:52:57,588 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-21 23:52:57,589 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.06 11:52:56" (1/5) ... [2020-06-21 23:52:57,589 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@df7f586 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.06 11:52:57, skipping insertion in model container [2020-06-21 23:52:57,589 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-21 23:52:57,590 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 11:52:57" (2/5) ... [2020-06-21 23:52:57,590 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@df7f586 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.06 11:52:57, skipping insertion in model container [2020-06-21 23:52:57,590 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-21 23:52:57,590 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.06 11:52:57" (3/5) ... [2020-06-21 23:52:57,591 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@df7f586 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.06 11:52:57, skipping insertion in model container [2020-06-21 23:52:57,591 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-21 23:52:57,591 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 21.06 11:52:57" (4/5) ... [2020-06-21 23:52:57,591 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@df7f586 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.06 11:52:57, skipping insertion in model container [2020-06-21 23:52:57,591 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-21 23:52:57,591 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.06 11:52:57" (5/5) ... [2020-06-21 23:52:57,593 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-21 23:52:57,627 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-21 23:52:57,628 INFO L374 BuchiCegarLoop]: Interprodecural is true [2020-06-21 23:52:57,628 INFO L375 BuchiCegarLoop]: Hoare is true [2020-06-21 23:52:57,628 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-21 23:52:57,628 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-21 23:52:57,628 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-21 23:52:57,628 INFO L379 BuchiCegarLoop]: Difference is false [2020-06-21 23:52:57,628 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-21 23:52:57,629 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-06-21 23:52:57,632 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2020-06-21 23:52:57,652 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-06-21 23:52:57,652 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-21 23:52:57,653 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-21 23:52:57,660 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-21 23:52:57,660 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2020-06-21 23:52:57,660 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2020-06-21 23:52:57,660 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2020-06-21 23:52:57,662 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-06-21 23:52:57,662 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-21 23:52:57,662 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-21 23:52:57,663 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-21 23:52:57,663 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2020-06-21 23:52:57,668 INFO L794 eck$LassoCheckResult]: Stem: 14#ULTIMATE.startENTRYtrue [60] ULTIMATE.startENTRY-->L23: Formula: (= v_ULTIMATE.start_main_~input~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|) InVars {} OutVars{ULTIMATE.start_main_~input~0=v_ULTIMATE.start_main_~input~0_1, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_2|, ULTIMATE.start_main_#t~ret3=|v_ULTIMATE.start_main_#t~ret3_1|, ULTIMATE.start_main_~result~0=v_ULTIMATE.start_main_~result~0_3} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~input~0, ULTIMATE.start_main_#t~ret3, ULTIMATE.start_main_~result~0] 18#L23true [63] L23-->idENTRY: Formula: (= |v_id_#in~xInParam_2| v_ULTIMATE.start_main_~input~0_5) InVars {ULTIMATE.start_main_~input~0=v_ULTIMATE.start_main_~input~0_5} OutVars{id_#in~x=|v_id_#in~xInParam_2|} AuxVars[] AssignedVars[id_#in~x]< 17#idENTRYtrue [2020-06-21 23:52:57,669 INFO L796 eck$LassoCheckResult]: Loop: 17#idENTRYtrue [62] idENTRY-->L8: Formula: (= v_id_~x_1 |v_id_#in~x_1|) InVars {id_#in~x=|v_id_#in~x_1|} OutVars{id_#in~x=|v_id_#in~x_1|, id_~x=v_id_~x_1} AuxVars[] AssignedVars[id_~x] 12#L8true [76] L8-->L9: Formula: (< 0 v_id_~x_3) InVars {id_~x=v_id_~x_3} OutVars{id_~x=v_id_~x_3} AuxVars[] AssignedVars[] 11#L9true [55] L9-->id2ENTRY: Formula: (= |v_id2_#in~xInParam_1| (+ v_id_~x_5 (- 1))) InVars {id_~x=v_id_~x_5} OutVars{id2_#in~x=|v_id2_#in~xInParam_1|} AuxVars[] AssignedVars[id2_#in~x]< 7#id2ENTRYtrue [49] id2ENTRY-->L15: Formula: (= v_id2_~x_1 |v_id2_#in~x_1|) InVars {id2_#in~x=|v_id2_#in~x_1|} OutVars{id2_#in~x=|v_id2_#in~x_1|, id2_~x=v_id2_~x_1} AuxVars[] AssignedVars[id2_~x] 5#L15true [78] L15-->L16: Formula: (< 0 v_id2_~x_3) InVars {id2_~x=v_id2_~x_3} OutVars{id2_~x=v_id2_~x_3} AuxVars[] AssignedVars[] 10#L16true [54] L16-->idENTRY: Formula: (= |v_id_#in~xInParam_1| (+ v_id2_~x_5 (- 1))) InVars {id2_~x=v_id2_~x_5} OutVars{id_#in~x=|v_id_#in~xInParam_1|} AuxVars[] AssignedVars[id_#in~x]< 17#idENTRYtrue [2020-06-21 23:52:57,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-21 23:52:57,675 INFO L82 PathProgramCache]: Analyzing trace with hash 2884, now seen corresponding path program 1 times [2020-06-21 23:52:57,677 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-21 23:52:57,678 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-21 23:52:57,697 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 23:52:57,697 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-21 23:52:57,698 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 23:52:57,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 23:52:57,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 23:52:57,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-21 23:52:57,739 INFO L82 PathProgramCache]: Analyzing trace with hash -1560580591, now seen corresponding path program 1 times [2020-06-21 23:52:57,739 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-21 23:52:57,739 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-21 23:52:57,740 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 23:52:57,740 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-21 23:52:57,741 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 23:52:57,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 23:52:57,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 23:52:57,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-21 23:52:57,763 INFO L82 PathProgramCache]: Analyzing trace with hash 1606990612, now seen corresponding path program 1 times [2020-06-21 23:52:57,764 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-21 23:52:57,764 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-21 23:52:57,765 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 23:52:57,765 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-21 23:52:57,765 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 23:52:57,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 23:52:57,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 23:52:57,906 INFO L216 LassoAnalysis]: Preferences: [2020-06-21 23:52:57,907 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-21 23:52:57,907 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-21 23:52:57,907 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-21 23:52:57,907 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-21 23:52:57,908 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-21 23:52:57,908 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-21 23:52:57,908 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-21 23:52:57,908 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-21 23:52:57,908 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-21 23:52:57,908 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-21 23:52:57,927 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 23:52:57,934 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 23:52:57,937 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 23:52:57,950 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 23:52:57,952 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 23:52:57,955 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 23:52:57,957 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 23:52:57,962 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 23:52:57,965 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 23:52:57,967 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 23:52:58,027 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-21 23:52:58,028 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 [2020-06-21 23:52:58,036 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-21 23:52:58,036 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-21 23:52:58,046 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-21 23:52:58,046 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {id_~ret~0=0} Honda state: {id_~ret~0=0} 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 [2020-06-21 23:52:58,078 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-21 23:52:58,078 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-21 23:52:58,082 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-21 23:52:58,082 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {id2_#res=0} Honda state: {id2_#res=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 [2020-06-21 23:52:58,112 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-21 23:52:58,112 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 [2020-06-21 23:52:58,143 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-21 23:52:58,143 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-21 23:52:58,213 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-21 23:52:58,215 INFO L216 LassoAnalysis]: Preferences: [2020-06-21 23:52:58,216 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-21 23:52:58,216 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-21 23:52:58,216 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-21 23:52:58,216 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-21 23:52:58,216 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-21 23:52:58,216 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-21 23:52:58,216 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-21 23:52:58,216 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-21 23:52:58,217 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-21 23:52:58,217 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-21 23:52:58,218 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 23:52:58,221 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 23:52:58,223 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 23:52:58,230 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 23:52:58,232 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 23:52:58,234 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 23:52:58,237 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 23:52:58,239 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 23:52:58,241 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 23:52:58,243 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 23:52:58,301 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-21 23:52:58,308 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-21 23:52:58,310 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 [2020-06-21 23:52:58,311 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-21 23:52:58,311 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-21 23:52:58,312 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-21 23:52:58,312 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-21 23:52:58,312 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-21 23:52:58,314 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-21 23:52:58,314 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-21 23:52:58,318 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-21 23:52:58,319 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 [2020-06-21 23:52:58,319 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-21 23:52:58,320 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-21 23:52:58,320 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-21 23:52:58,320 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-21 23:52:58,320 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-21 23:52:58,321 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-21 23:52:58,321 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-21 23:52:58,322 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-21 23:52:58,323 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 [2020-06-21 23:52:58,323 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-21 23:52:58,323 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-21 23:52:58,324 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-21 23:52:58,324 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-21 23:52:58,324 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-21 23:52:58,325 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-21 23:52:58,325 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-21 23:52:58,331 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-21 23:52:58,336 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-21 23:52:58,336 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-21 23:52:58,338 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-21 23:52:58,338 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-21 23:52:58,339 INFO L518 LassoAnalysis]: Proved termination. [2020-06-21 23:52:58,339 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(id_#in~x) = 1*id_#in~x Supporting invariants [] [2020-06-21 23:52:58,340 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-21 23:52:58,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-21 23:52:58,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-21 23:52:58,381 INFO L256 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-21 23:52:58,382 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-21 23:52:58,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-21 23:52:58,409 INFO L256 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 11 conjunts are in the unsatisfiable core [2020-06-21 23:52:58,410 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-21 23:52:58,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-21 23:52:58,504 INFO L98 LoopCannibalizer]: 5 predicates before loop cannibalization 5 predicates after loop cannibalization [2020-06-21 23:52:58,509 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 5 loop predicates [2020-06-21 23:52:58,511 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 16 states. Second operand 6 states. [2020-06-21 23:52:58,751 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 16 states.. Second operand 6 states. Result 82 states and 115 transitions. Complement of second has 26 states. [2020-06-21 23:52:58,752 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 1 stem states 7 non-accepting loop states 1 accepting loop states [2020-06-21 23:52:58,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-06-21 23:52:58,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 48 transitions. [2020-06-21 23:52:58,759 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 48 transitions. Stem has 2 letters. Loop has 6 letters. [2020-06-21 23:52:58,761 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-21 23:52:58,761 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 48 transitions. Stem has 8 letters. Loop has 6 letters. [2020-06-21 23:52:58,761 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-21 23:52:58,761 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 48 transitions. Stem has 2 letters. Loop has 12 letters. [2020-06-21 23:52:58,762 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-21 23:52:58,772 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 82 states and 115 transitions. [2020-06-21 23:52:58,779 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-06-21 23:52:58,785 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 82 states to 25 states and 34 transitions. [2020-06-21 23:52:58,787 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2020-06-21 23:52:58,787 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2020-06-21 23:52:58,788 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 34 transitions. [2020-06-21 23:52:58,788 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-21 23:52:58,788 INFO L706 BuchiCegarLoop]: Abstraction has 25 states and 34 transitions. [2020-06-21 23:52:58,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 34 transitions. [2020-06-21 23:52:58,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 17. [2020-06-21 23:52:58,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-06-21 23:52:58,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 22 transitions. [2020-06-21 23:52:58,821 INFO L729 BuchiCegarLoop]: Abstraction has 17 states and 22 transitions. [2020-06-21 23:52:58,822 INFO L609 BuchiCegarLoop]: Abstraction has 17 states and 22 transitions. [2020-06-21 23:52:58,822 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2020-06-21 23:52:58,822 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 22 transitions. [2020-06-21 23:52:58,822 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-06-21 23:52:58,823 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-21 23:52:58,823 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-21 23:52:58,823 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-06-21 23:52:58,823 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2020-06-21 23:52:58,824 INFO L794 eck$LassoCheckResult]: Stem: 190#ULTIMATE.startENTRY [60] ULTIMATE.startENTRY-->L23: Formula: (= v_ULTIMATE.start_main_~input~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|) InVars {} OutVars{ULTIMATE.start_main_~input~0=v_ULTIMATE.start_main_~input~0_1, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_2|, ULTIMATE.start_main_#t~ret3=|v_ULTIMATE.start_main_#t~ret3_1|, ULTIMATE.start_main_~result~0=v_ULTIMATE.start_main_~result~0_3} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~input~0, ULTIMATE.start_main_#t~ret3, ULTIMATE.start_main_~result~0] 188#L23 [63] L23-->idENTRY: Formula: (= |v_id_#in~xInParam_2| v_ULTIMATE.start_main_~input~0_5) InVars {ULTIMATE.start_main_~input~0=v_ULTIMATE.start_main_~input~0_5} OutVars{id_#in~x=|v_id_#in~xInParam_2|} AuxVars[] AssignedVars[id_#in~x]< 193#idENTRY [62] idENTRY-->L8: Formula: (= v_id_~x_1 |v_id_#in~x_1|) InVars {id_#in~x=|v_id_#in~x_1|} OutVars{id_#in~x=|v_id_#in~x_1|, id_~x=v_id_~x_1} AuxVars[] AssignedVars[id_~x] 187#L8 [2020-06-21 23:52:58,824 INFO L796 eck$LassoCheckResult]: Loop: 187#L8 [76] L8-->L9: Formula: (< 0 v_id_~x_3) InVars {id_~x=v_id_~x_3} OutVars{id_~x=v_id_~x_3} AuxVars[] AssignedVars[] 181#L9 [55] L9-->id2ENTRY: Formula: (= |v_id2_#in~xInParam_1| (+ v_id_~x_5 (- 1))) InVars {id_~x=v_id_~x_5} OutVars{id2_#in~x=|v_id2_#in~xInParam_1|} AuxVars[] AssignedVars[id2_#in~x]< 194#id2ENTRY [49] id2ENTRY-->L15: Formula: (= v_id2_~x_1 |v_id2_#in~x_1|) InVars {id2_#in~x=|v_id2_#in~x_1|} OutVars{id2_#in~x=|v_id2_#in~x_1|, id2_~x=v_id2_~x_1} AuxVars[] AssignedVars[id2_~x] 180#L15 [79] L15-->L16: Formula: (> 0 v_id2_~x_3) InVars {id2_~x=v_id2_~x_3} OutVars{id2_~x=v_id2_~x_3} AuxVars[] AssignedVars[] 182#L16 [54] L16-->idENTRY: Formula: (= |v_id_#in~xInParam_1| (+ v_id2_~x_5 (- 1))) InVars {id2_~x=v_id2_~x_5} OutVars{id_#in~x=|v_id_#in~xInParam_1|} AuxVars[] AssignedVars[id_#in~x]< 191#idENTRY [62] idENTRY-->L8: Formula: (= v_id_~x_1 |v_id_#in~x_1|) InVars {id_#in~x=|v_id_#in~x_1|} OutVars{id_#in~x=|v_id_#in~x_1|, id_~x=v_id_~x_1} AuxVars[] AssignedVars[id_~x] 187#L8 [2020-06-21 23:52:58,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-21 23:52:58,824 INFO L82 PathProgramCache]: Analyzing trace with hash 89466, now seen corresponding path program 1 times [2020-06-21 23:52:58,824 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-21 23:52:58,825 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-21 23:52:58,826 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 23:52:58,826 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-21 23:52:58,826 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 23:52:58,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 23:52:58,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 23:52:58,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-21 23:52:58,832 INFO L82 PathProgramCache]: Analyzing trace with hash -1179317070, now seen corresponding path program 1 times [2020-06-21 23:52:58,832 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-21 23:52:58,832 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-21 23:52:58,833 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 23:52:58,833 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-21 23:52:58,833 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 23:52:58,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-21 23:52:58,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-21 23:52:58,881 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-21 23:52:58,881 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-06-21 23:52:58,884 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-06-21 23:52:58,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-06-21 23:52:58,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-06-21 23:52:58,887 INFO L87 Difference]: Start difference. First operand 17 states and 22 transitions. cyclomatic complexity: 7 Second operand 5 states. [2020-06-21 23:52:58,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-21 23:52:58,927 INFO L93 Difference]: Finished difference Result 24 states and 28 transitions. [2020-06-21 23:52:58,927 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-06-21 23:52:58,930 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 28 transitions. [2020-06-21 23:52:58,932 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-06-21 23:52:58,933 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 21 states and 25 transitions. [2020-06-21 23:52:58,933 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2020-06-21 23:52:58,934 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2020-06-21 23:52:58,934 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 25 transitions. [2020-06-21 23:52:58,934 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-21 23:52:58,934 INFO L706 BuchiCegarLoop]: Abstraction has 21 states and 25 transitions. [2020-06-21 23:52:58,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 25 transitions. [2020-06-21 23:52:58,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2020-06-21 23:52:58,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-06-21 23:52:58,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 24 transitions. [2020-06-21 23:52:58,937 INFO L729 BuchiCegarLoop]: Abstraction has 20 states and 24 transitions. [2020-06-21 23:52:58,937 INFO L609 BuchiCegarLoop]: Abstraction has 20 states and 24 transitions. [2020-06-21 23:52:58,937 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2020-06-21 23:52:58,937 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 24 transitions. [2020-06-21 23:52:58,937 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-06-21 23:52:58,938 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-21 23:52:58,938 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-21 23:52:58,938 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-06-21 23:52:58,938 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2020-06-21 23:52:58,938 INFO L794 eck$LassoCheckResult]: Stem: 242#ULTIMATE.startENTRY [60] ULTIMATE.startENTRY-->L23: Formula: (= v_ULTIMATE.start_main_~input~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|) InVars {} OutVars{ULTIMATE.start_main_~input~0=v_ULTIMATE.start_main_~input~0_1, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_2|, ULTIMATE.start_main_#t~ret3=|v_ULTIMATE.start_main_#t~ret3_1|, ULTIMATE.start_main_~result~0=v_ULTIMATE.start_main_~result~0_3} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~input~0, ULTIMATE.start_main_#t~ret3, ULTIMATE.start_main_~result~0] 238#L23 [63] L23-->idENTRY: Formula: (= |v_id_#in~xInParam_2| v_ULTIMATE.start_main_~input~0_5) InVars {ULTIMATE.start_main_~input~0=v_ULTIMATE.start_main_~input~0_5} OutVars{id_#in~x=|v_id_#in~xInParam_2|} AuxVars[] AssignedVars[id_#in~x]< 245#idENTRY [62] idENTRY-->L8: Formula: (= v_id_~x_1 |v_id_#in~x_1|) InVars {id_#in~x=|v_id_#in~x_1|} OutVars{id_#in~x=|v_id_#in~x_1|, id_~x=v_id_~x_1} AuxVars[] AssignedVars[id_~x] 237#L8 [2020-06-21 23:52:58,939 INFO L796 eck$LassoCheckResult]: Loop: 237#L8 [77] L8-->L9: Formula: (> 0 v_id_~x_3) InVars {id_~x=v_id_~x_3} OutVars{id_~x=v_id_~x_3} AuxVars[] AssignedVars[] 232#L9 [55] L9-->id2ENTRY: Formula: (= |v_id2_#in~xInParam_1| (+ v_id_~x_5 (- 1))) InVars {id_~x=v_id_~x_5} OutVars{id2_#in~x=|v_id2_#in~xInParam_1|} AuxVars[] AssignedVars[id2_#in~x]< 246#id2ENTRY [49] id2ENTRY-->L15: Formula: (= v_id2_~x_1 |v_id2_#in~x_1|) InVars {id2_#in~x=|v_id2_#in~x_1|} OutVars{id2_#in~x=|v_id2_#in~x_1|, id2_~x=v_id2_~x_1} AuxVars[] AssignedVars[id2_~x] 231#L15 [79] L15-->L16: Formula: (> 0 v_id2_~x_3) InVars {id2_~x=v_id2_~x_3} OutVars{id2_~x=v_id2_~x_3} AuxVars[] AssignedVars[] 233#L16 [54] L16-->idENTRY: Formula: (= |v_id_#in~xInParam_1| (+ v_id2_~x_5 (- 1))) InVars {id2_~x=v_id2_~x_5} OutVars{id_#in~x=|v_id_#in~xInParam_1|} AuxVars[] AssignedVars[id_#in~x]< 243#idENTRY [62] idENTRY-->L8: Formula: (= v_id_~x_1 |v_id_#in~x_1|) InVars {id_#in~x=|v_id_#in~x_1|} OutVars{id_#in~x=|v_id_#in~x_1|, id_~x=v_id_~x_1} AuxVars[] AssignedVars[id_~x] 237#L8 [2020-06-21 23:52:58,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-21 23:52:58,939 INFO L82 PathProgramCache]: Analyzing trace with hash 89466, now seen corresponding path program 2 times [2020-06-21 23:52:58,939 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-21 23:52:58,939 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-21 23:52:58,940 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 23:52:58,940 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-21 23:52:58,941 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 23:52:58,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 23:52:58,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 23:52:58,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-21 23:52:58,946 INFO L82 PathProgramCache]: Analyzing trace with hash -1150687919, now seen corresponding path program 1 times [2020-06-21 23:52:58,946 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-21 23:52:58,946 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-21 23:52:58,947 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 23:52:58,947 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-21 23:52:58,947 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 23:52:58,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 23:52:58,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 23:52:58,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-21 23:52:58,955 INFO L82 PathProgramCache]: Analyzing trace with hash -1694268406, now seen corresponding path program 1 times [2020-06-21 23:52:58,956 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-21 23:52:58,956 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-21 23:52:58,957 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 23:52:58,957 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-21 23:52:58,957 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 23:52:58,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 23:52:58,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 23:52:59,057 INFO L216 LassoAnalysis]: Preferences: [2020-06-21 23:52:59,057 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-21 23:52:59,058 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-21 23:52:59,058 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-21 23:52:59,058 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-21 23:52:59,058 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-21 23:52:59,058 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-21 23:52:59,058 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-21 23:52:59,058 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-06-21 23:52:59,058 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-21 23:52:59,058 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-21 23:52:59,060 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 23:52:59,062 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 23:52:59,065 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 23:52:59,074 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 23:52:59,076 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 23:52:59,079 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 23:52:59,081 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 23:52:59,085 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 23:52:59,087 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 23:52:59,146 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-21 23:52:59,146 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-21 23:52:59,150 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-21 23:52:59,150 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-21 23:52:59,154 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-21 23:52:59,155 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {id2_~ret~1=0} Honda state: {id2_~ret~1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-21 23:52:59,182 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-21 23:52:59,183 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-21 23:52:59,186 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-21 23:52:59,187 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {id_#res=0} Honda state: {id_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-21 23:52:59,216 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-21 23:52:59,216 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-21 23:52:59,250 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-21 23:52:59,250 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-21 23:52:59,426 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-21 23:52:59,426 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {id_#in~x=-4, id_~x=-10} Honda state: {id_#in~x=-4, id_~x=-10} Generalized eigenvectors: [{id_#in~x=1, id_~x=0}, {id_#in~x=-7, id_~x=0}, {id_#in~x=-2, id_~x=-2}] Lambdas: [7, 0, 1] Nus: [1, 0] 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 [2020-06-21 23:52:59,468 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-21 23:52:59,469 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-21 23:52:59,472 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-21 23:52:59,472 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {id2_~x=0} Honda state: {id2_~x=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-21 23:52:59,500 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-21 23:52:59,500 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-21 23:52:59,503 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-21 23:52:59,503 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {id2_#res=0} Honda state: {id2_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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 [2020-06-21 23:52:59,533 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-21 23:52:59,534 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-21 23:52:59,537 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-21 23:52:59,537 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {id_~ret~0=0} Honda state: {id_~ret~0=0} 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) [2020-06-21 23:52:59,567 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-21 23:52:59,567 INFO L163 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-21 23:52:59,571 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-21 23:52:59,571 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {id_#t~ret0=0} Honda state: {id_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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 [2020-06-21 23:52:59,599 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-21 23:52:59,599 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-21 23:52:59,603 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-21 23:52:59,603 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {id2_#t~ret1=0} Honda state: {id2_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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 [2020-06-21 23:52:59,630 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-21 23:52:59,630 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-21 23:52:59,634 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-21 23:52:59,634 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {id2_#in~x=0} Honda state: {id2_#in~x=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2020-06-21 23:52:59,681 INFO L216 LassoAnalysis]: Preferences: [2020-06-21 23:52:59,681 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-21 23:52:59,681 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-21 23:52:59,681 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-21 23:52:59,681 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-21 23:52:59,682 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-21 23:52:59,682 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-21 23:52:59,682 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-21 23:52:59,682 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Lasso [2020-06-21 23:52:59,682 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-21 23:52:59,682 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-21 23:52:59,684 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 23:52:59,687 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 23:52:59,689 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 23:52:59,693 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 23:52:59,696 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 23:52:59,697 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 23:52:59,699 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 23:52:59,702 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 23:52:59,713 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 23:52:59,715 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 23:52:59,719 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 23:52:59,734 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 23:52:59,737 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 23:52:59,739 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 23:52:59,742 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 23:52:59,838 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-21 23:52:59,838 INFO L412 LassoAnalysis]: Checking for nontermination... 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 [2020-06-21 23:52:59,843 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-21 23:52:59,843 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-21 23:52:59,847 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-21 23:52:59,847 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 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 [2020-06-21 23:52:59,875 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-21 23:52:59,875 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-21 23:52:59,879 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-21 23:52:59,879 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {id_#res=0} Honda state: {id_#res=0} 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 [2020-06-21 23:52:59,908 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-21 23:52:59,908 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-21 23:52:59,912 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-21 23:52:59,912 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~ret3=0} Honda state: {ULTIMATE.start_main_#t~ret3=0} 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 [2020-06-21 23:52:59,941 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-21 23:52:59,941 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-21 23:52:59,945 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-21 23:52:59,945 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {id2_#t~ret1=0} Honda state: {id2_#t~ret1=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 [2020-06-21 23:52:59,975 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-21 23:52:59,975 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-21 23:52:59,978 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-21 23:52:59,979 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~input~0=0} Honda state: {ULTIMATE.start_main_~input~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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 [2020-06-21 23:53:00,007 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-21 23:53:00,008 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-21 23:53:00,011 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-21 23:53:00,011 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {id2_~ret~1=0} Honda state: {id2_~ret~1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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 [2020-06-21 23:53:00,039 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-21 23:53:00,039 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-21 23:53:00,043 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-21 23:53:00,043 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_#t~ret4=0} Honda state: {ULTIMATE.start_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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 [2020-06-21 23:53:00,068 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-21 23:53:00,069 INFO L163 nArgumentSynthesizer]: Using integer mode. 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 [2020-06-21 23:53:00,103 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-21 23:53:00,103 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-21 23:53:00,381 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-21 23:53:00,382 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {id_#in~x=0, id_~x=0} Honda state: {id_#in~x=-6, id_~x=-6} Generalized eigenvectors: [{id_#in~x=-2, id_~x=-2}, {id_#in~x=4, id_~x=0}, {id_#in~x=-4, id_~x=0}] Lambdas: [1, 0, 0] Nus: [0, 0] 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 [2020-06-21 23:53:00,408 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-21 23:53:00,409 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-21 23:53:00,412 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-21 23:53:00,412 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {id2_~x=0} Honda state: {id2_~x=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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 [2020-06-21 23:53:00,439 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-21 23:53:00,440 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-21 23:53:00,443 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-21 23:53:00,443 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~result~0=0} Honda state: {ULTIMATE.start_main_~result~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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 [2020-06-21 23:53:00,469 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-21 23:53:00,469 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-21 23:53:00,473 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-21 23:53:00,473 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {id2_#res=0} Honda state: {id2_#res=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 [2020-06-21 23:53:00,498 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-21 23:53:00,499 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-21 23:53:00,502 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-21 23:53:00,502 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2=0} Honda state: {ULTIMATE.start_main_#t~nondet2=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 [2020-06-21 23:53:00,528 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-21 23:53:00,528 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-21 23:53:00,531 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-21 23:53:00,532 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {id_~ret~0=0} Honda state: {id_~ret~0=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 [2020-06-21 23:53:00,559 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-21 23:53:00,559 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-21 23:53:00,562 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-21 23:53:00,562 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {id_#t~ret0=0} Honda state: {id_#t~ret0=0} 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 [2020-06-21 23:53:00,588 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-21 23:53:00,588 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-21 23:53:00,592 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-21 23:53:00,592 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {id2_#in~x=0} Honda state: {id2_#in~x=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2020-06-21 23:53:00,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.06 11:53:00 BasicIcfg [2020-06-21 23:53:00,638 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-21 23:53:00,639 INFO L168 Benchmark]: Toolchain (without parser) took 3902.50 ms. Allocated memory was 649.6 MB in the beginning and 736.1 MB in the end (delta: 86.5 MB). Free memory was 565.2 MB in the beginning and 616.9 MB in the end (delta: -51.7 MB). Peak memory consumption was 225.7 MB. Max. memory is 50.3 GB. [2020-06-21 23:53:00,640 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 649.6 MB. Free memory is still 585.7 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-06-21 23:53:00,641 INFO L168 Benchmark]: CACSL2BoogieTranslator took 305.55 ms. Allocated memory was 649.6 MB in the beginning and 667.4 MB in the end (delta: 17.8 MB). Free memory was 565.2 MB in the beginning and 634.8 MB in the end (delta: -69.6 MB). Peak memory consumption was 30.4 MB. Max. memory is 50.3 GB. [2020-06-21 23:53:00,641 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.69 ms. Allocated memory is still 667.4 MB. Free memory was 634.8 MB in the beginning and 633.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-06-21 23:53:00,642 INFO L168 Benchmark]: Boogie Preprocessor took 18.51 ms. Allocated memory is still 667.4 MB. Free memory was 633.5 MB in the beginning and 632.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-06-21 23:53:00,642 INFO L168 Benchmark]: RCFGBuilder took 232.14 ms. Allocated memory is still 667.4 MB. Free memory was 632.2 MB in the beginning and 616.1 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 50.3 GB. [2020-06-21 23:53:00,643 INFO L168 Benchmark]: BlockEncodingV2 took 84.67 ms. Allocated memory is still 667.4 MB. Free memory was 614.8 MB in the beginning and 609.7 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 50.3 GB. [2020-06-21 23:53:00,643 INFO L168 Benchmark]: TraceAbstraction took 166.48 ms. Allocated memory is still 667.4 MB. Free memory was 608.3 MB in the beginning and 597.5 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 50.3 GB. [2020-06-21 23:53:00,644 INFO L168 Benchmark]: BuchiAutomizer took 3054.46 ms. Allocated memory was 667.4 MB in the beginning and 736.1 MB in the end (delta: 68.7 MB). Free memory was 597.5 MB in the beginning and 616.9 MB in the end (delta: -19.3 MB). Peak memory consumption was 240.2 MB. Max. memory is 50.3 GB. [2020-06-21 23:53:00,648 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 22 locations, 27 edges - StatisticsResult: Encoded RCFG 16 locations, 22 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 585.7 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 305.55 ms. Allocated memory was 649.6 MB in the beginning and 667.4 MB in the end (delta: 17.8 MB). Free memory was 565.2 MB in the beginning and 634.8 MB in the end (delta: -69.6 MB). Peak memory consumption was 30.4 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 35.69 ms. Allocated memory is still 667.4 MB. Free memory was 634.8 MB in the beginning and 633.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 18.51 ms. Allocated memory is still 667.4 MB. Free memory was 633.5 MB in the beginning and 632.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * RCFGBuilder took 232.14 ms. Allocated memory is still 667.4 MB. Free memory was 632.2 MB in the beginning and 616.1 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 84.67 ms. Allocated memory is still 667.4 MB. Free memory was 614.8 MB in the beginning and 609.7 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 50.3 GB. * TraceAbstraction took 166.48 ms. Allocated memory is still 667.4 MB. Free memory was 608.3 MB in the beginning and 597.5 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 3054.46 ms. Allocated memory was 667.4 MB in the beginning and 736.1 MB in the end (delta: 68.7 MB). Free memory was 597.5 MB in the beginning and 616.9 MB in the end (delta: -19.3 MB). Peak memory consumption was 240.2 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 16 locations, 0 error locations. SAFE Result, 0.1s 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=16occurred 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, 5 LocationsWithAnnotation, 7 PreInvPairs, 7 NumberOfFragments, 5 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (1 trivial, 0 deterministic, 1 nondeterministic) and one nonterminating remainder module.One nondeterministic module has affine ranking function \old(x) and consists of 9 locations. 1 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 20 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.9s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.4s. Construction of modules took 0.1s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 9 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 20 states and ocurred in iteration 2. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 32 SDtfs, 51 SDslu, 73 SDs, 0 SdLazy, 107 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital13 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq167 hnf93 smp100 dnf100 smp100 tf108 neg100 sie109 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 9ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 24 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.8s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - GeometricNonTerminationArgumentResult [Line: 8]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution {id_~x=0, |id_#t~ret0|=0, id2_~ret~1=0, id2_~x=0, |ULTIMATE.start_main_#t~nondet2|=0, ULTIMATE.start_main_~input~0=0, id_~ret~0=0, |id2_#res|=0, ULTIMATE.start_main_~result~0=0, |ULTIMATE.start_#t~ret4|=0, |id2_#in~x|=0, |id_#res|=0, |ULTIMATE.start_main_#res|=0, |id_#in~x|=0, |id2_#t~ret1|=0, |ULTIMATE.start_main_#t~ret3|=0} {\result=0, \result=0, x=-6, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5721e518=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@22b6694b=0, x=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7a404534=0, \old(x)=0, ret=0, \result=0, input=0, result=0, \old(x)=-6, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@59d49536=0, ret=0, NULL=0} {\result=0, \result=0, x=-8, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5721e518=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@22b6694b=0, x=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7a404534=0, \old(x)=0, ret=0, \result=0, input=0, result=0, \old(x)=-8, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@59d49536=0, ret=0, NULL=0} {\result=0, \result=0, x=-10, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5721e518=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@22b6694b=0, x=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7a404534=0, \old(x)=0, ret=0, \result=0, input=0, result=0, \old(x)=-10, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@59d49536=0, ret=0, NULL=0} {\result=0, \result=0, x=-12, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5721e518=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@22b6694b=0, x=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7a404534=0, \old(x)=0, ret=0, \result=0, input=0, result=0, \old(x)=-12, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@59d49536=0, ret=0, NULL=0} {\result=0, \result=0, x=-14, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5721e518=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@22b6694b=0, x=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7a404534=0, \old(x)=0, ret=0, \result=0, input=0, result=0, \old(x)=-14, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@59d49536=0, ret=0, NULL=0} - StatisticsResult: NonterminationArgumentStatistics Unbounded Execution 3GEVs Lambdas: [1, 0, 0] Mus: [0, 0] - NonterminatingLassoResult [Line: 8]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L22] int input = __VERIFIER_nondet_int(); [L23] CALL id(input) Loop: [L8] COND FALSE !(x==0) [L9] CALL id2(x-1) [L15] COND FALSE !(x==0) [L16] CALL id(x-1) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! !SESSION 2020-06-21 23:52:52.868 ----------------------------------------------- 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 2020-06-21 23:53:00.886 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check