YES Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-22 04:22:09,939 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-22 04:22:09,942 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-22 04:22:09,954 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-22 04:22:09,954 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-22 04:22:09,955 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-22 04:22:09,956 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-22 04:22:09,958 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-22 04:22:09,960 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-22 04:22:09,961 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-22 04:22:09,962 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-22 04:22:09,962 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-22 04:22:09,963 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-22 04:22:09,964 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-22 04:22:09,965 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-22 04:22:09,966 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-22 04:22:09,966 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-22 04:22:09,968 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-22 04:22:09,970 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-22 04:22:09,972 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-22 04:22:09,973 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-22 04:22:09,974 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-22 04:22:09,977 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-22 04:22:09,977 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-22 04:22:09,979 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-22 04:22:09,980 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-22 04:22:09,981 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-22 04:22:09,982 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-22 04:22:09,982 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-22 04:22:09,983 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-22 04:22:09,983 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-22 04:22:09,987 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-22 04:22:09,988 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-22 04:22:09,988 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-22 04:22:09,989 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-22 04:22:09,989 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-22 04:22:09,989 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-22 04:22:09,990 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-22 04:22:09,991 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-22 04:22:09,991 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-06-22 04:22:10,022 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-22 04:22:10,022 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-22 04:22:10,023 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-22 04:22:10,023 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-22 04:22:10,024 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-22 04:22:10,024 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-22 04:22:10,024 INFO L133 SettingsManager]: * Use SBE=true [2020-06-22 04:22:10,025 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-22 04:22:10,025 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-22 04:22:10,025 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-22 04:22:10,025 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-22 04:22:10,025 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-22 04:22:10,027 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-22 04:22:10,027 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-22 04:22:10,028 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 04:22:10,028 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-22 04:22:10,028 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-22 04:22:10,028 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-22 04:22:10,028 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-22 04:22:10,029 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-22 04:22:10,029 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-22 04:22:10,029 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-22 04:22:10,029 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-22 04:22:10,029 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-22 04:22:10,029 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 04:22:10,030 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-22 04:22:10,030 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-22 04:22:10,030 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-22 04:22:10,030 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-22 04:22:10,088 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-22 04:22:10,107 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-22 04:22:10,113 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-22 04:22:10,115 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-22 04:22:10,115 INFO L276 PluginConnector]: CDTParser initialized [2020-06-22 04:22:10,116 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 04:22:10,189 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/5383c3a93ece425ab53bfb9b17c7d8e5/FLAG0d8ef2a7a [2020-06-22 04:22:10,549 INFO L307 CDTParser]: Found 1 translation units. [2020-06-22 04:22:10,550 INFO L161 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 04:22:10,557 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/5383c3a93ece425ab53bfb9b17c7d8e5/FLAG0d8ef2a7a [2020-06-22 04:22:10,961 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/5383c3a93ece425ab53bfb9b17c7d8e5 [2020-06-22 04:22:10,973 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-22 04:22:10,974 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-22 04:22:10,975 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-22 04:22:10,976 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-22 04:22:10,979 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-22 04:22:10,980 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 04:22:10" (1/1) ... [2020-06-22 04:22:10,983 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b760008 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:22:10, skipping insertion in model container [2020-06-22 04:22:10,984 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 04:22:10" (1/1) ... [2020-06-22 04:22:10,992 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-22 04:22:11,012 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-22 04:22:11,170 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 04:22:11,174 INFO L191 MainTranslator]: Completed pre-run [2020-06-22 04:22:11,191 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 04:22:11,279 INFO L195 MainTranslator]: Completed translation [2020-06-22 04:22:11,279 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:22:11 WrapperNode [2020-06-22 04:22:11,280 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-22 04:22:11,281 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-22 04:22:11,281 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-22 04:22:11,281 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-22 04:22:11,296 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:22:11" (1/1) ... [2020-06-22 04:22:11,302 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:22:11" (1/1) ... [2020-06-22 04:22:11,322 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-22 04:22:11,322 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-22 04:22:11,322 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-22 04:22:11,322 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-22 04:22:11,332 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:22:11" (1/1) ... [2020-06-22 04:22:11,333 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:22:11" (1/1) ... [2020-06-22 04:22:11,333 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:22:11" (1/1) ... [2020-06-22 04:22:11,334 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:22:11" (1/1) ... [2020-06-22 04:22:11,336 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:22:11" (1/1) ... [2020-06-22 04:22:11,338 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:22:11" (1/1) ... [2020-06-22 04:22:11,339 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:22:11" (1/1) ... [2020-06-22 04:22:11,340 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-22 04:22:11,341 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-22 04:22:11,341 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-22 04:22:11,341 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-22 04:22:11,342 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:22:11" (1/1) ... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 04:22:11,410 INFO L130 BoogieDeclarations]: Found specification of procedure f [2020-06-22 04:22:11,411 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2020-06-22 04:22:11,411 INFO L130 BoogieDeclarations]: Found specification of procedure g [2020-06-22 04:22:11,411 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2020-06-22 04:22:11,412 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-22 04:22:11,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-22 04:22:11,567 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-22 04:22:11,567 INFO L286 CfgBuilder]: Removed 4 assue(true) statements. [2020-06-22 04:22:11,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 04:22:11 BoogieIcfgContainer [2020-06-22 04:22:11,569 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-22 04:22:11,569 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-22 04:22:11,569 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-22 04:22:11,571 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-22 04:22:11,572 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 04:22:11" (1/1) ... [2020-06-22 04:22:11,589 INFO L313 BlockEncoder]: Initial Icfg 19 locations, 21 edges [2020-06-22 04:22:11,591 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-22 04:22:11,592 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-22 04:22:11,592 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-22 04:22:11,593 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-22 04:22:11,595 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-22 04:22:11,595 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-22 04:22:11,596 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-22 04:22:11,611 INFO L185 BlockEncoder]: Using Use SBE [2020-06-22 04:22:11,626 INFO L200 BlockEncoder]: SBE split 2 edges [2020-06-22 04:22:11,631 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 04:22:11,633 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 04:22:11,646 INFO L100 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2020-06-22 04:22:11,648 INFO L70 RemoveSinkStates]: Removed 5 edges and 3 locations by removing sink states [2020-06-22 04:22:11,650 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 04:22:11,650 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 04:22:11,655 INFO L100 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2020-06-22 04:22:11,656 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 04:22:11,656 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 04:22:11,657 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 04:22:11,657 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-22 04:22:11,657 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 04:22:11,658 INFO L313 BlockEncoder]: Encoded RCFG 12 locations, 14 edges [2020-06-22 04:22:11,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 04:22:11 BasicIcfg [2020-06-22 04:22:11,658 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-22 04:22:11,659 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-22 04:22:11,659 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-22 04:22:11,663 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-22 04:22:11,663 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.06 04:22:10" (1/4) ... [2020-06-22 04:22:11,664 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@610835e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 04:22:11, skipping insertion in model container [2020-06-22 04:22:11,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:22:11" (2/4) ... [2020-06-22 04:22:11,664 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@610835e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 04:22:11, skipping insertion in model container [2020-06-22 04:22:11,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 04:22:11" (3/4) ... [2020-06-22 04:22:11,665 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@610835e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 04:22:11, skipping insertion in model container [2020-06-22 04:22:11,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 04:22:11" (4/4) ... [2020-06-22 04:22:11,667 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 04:22:11,678 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-22 04:22:11,686 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-06-22 04:22:11,707 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-06-22 04:22:11,736 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 04:22:11,737 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-22 04:22:11,756 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-22 04:22:11,756 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 04:22:11,756 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 04:22:11,756 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 04:22:11,757 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-22 04:22:11,757 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 04:22:11,757 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-22 04:22:11,775 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2020-06-22 04:22:11,781 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-06-22 04:22:11,787 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 12 states. [2020-06-22 04:22:11,849 INFO L448 ceAbstractionStarter]: For program point fEXIT(lines 17 23) no Hoare annotation was computed. [2020-06-22 04:22:11,850 INFO L451 ceAbstractionStarter]: At program point fENTRY(lines 17 23) the Hoare annotation is: true [2020-06-22 04:22:11,850 INFO L451 ceAbstractionStarter]: At program point L21(line 21) the Hoare annotation is: true [2020-06-22 04:22:11,850 INFO L448 ceAbstractionStarter]: For program point fFINAL(lines 17 23) no Hoare annotation was computed. [2020-06-22 04:22:11,850 INFO L448 ceAbstractionStarter]: For program point L21-1(line 21) no Hoare annotation was computed. [2020-06-22 04:22:11,850 INFO L448 ceAbstractionStarter]: For program point L18(lines 18 22) no Hoare annotation was computed. [2020-06-22 04:22:11,851 INFO L451 ceAbstractionStarter]: At program point L26(line 26) the Hoare annotation is: true [2020-06-22 04:22:11,851 INFO L448 ceAbstractionStarter]: For program point L26-1(line 26) no Hoare annotation was computed. [2020-06-22 04:22:11,851 INFO L448 ceAbstractionStarter]: For program point gEXIT(lines 25 27) no Hoare annotation was computed. [2020-06-22 04:22:11,851 INFO L451 ceAbstractionStarter]: At program point gENTRY(lines 25 27) the Hoare annotation is: true [2020-06-22 04:22:11,851 INFO L451 ceAbstractionStarter]: At program point L33(line 33) the Hoare annotation is: true [2020-06-22 04:22:11,851 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-06-22 04:22:11,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 04:22:11 BasicIcfg [2020-06-22 04:22:11,855 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-22 04:22:11,856 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-22 04:22:11,856 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-22 04:22:11,859 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-22 04:22:11,860 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 04:22:11,861 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.06 04:22:10" (1/5) ... [2020-06-22 04:22:11,861 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7866e289 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 04:22:11, skipping insertion in model container [2020-06-22 04:22:11,861 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 04:22:11,861 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:22:11" (2/5) ... [2020-06-22 04:22:11,862 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7866e289 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 04:22:11, skipping insertion in model container [2020-06-22 04:22:11,862 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 04:22:11,862 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 04:22:11" (3/5) ... [2020-06-22 04:22:11,862 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7866e289 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 04:22:11, skipping insertion in model container [2020-06-22 04:22:11,863 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 04:22:11,863 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 04:22:11" (4/5) ... [2020-06-22 04:22:11,863 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7866e289 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 04:22:11, skipping insertion in model container [2020-06-22 04:22:11,863 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 04:22:11,863 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 04:22:11" (5/5) ... [2020-06-22 04:22:11,865 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 04:22:11,892 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 04:22:11,892 INFO L374 BuchiCegarLoop]: Interprodecural is true [2020-06-22 04:22:11,892 INFO L375 BuchiCegarLoop]: Hoare is true [2020-06-22 04:22:11,892 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 04:22:11,893 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 04:22:11,893 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 04:22:11,893 INFO L379 BuchiCegarLoop]: Difference is false [2020-06-22 04:22:11,893 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 04:22:11,893 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-06-22 04:22:11,897 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2020-06-22 04:22:11,915 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-06-22 04:22:11,915 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 04:22:11,916 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 04:22:11,923 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 04:22:11,923 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-06-22 04:22:11,923 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2020-06-22 04:22:11,923 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2020-06-22 04:22:11,925 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-06-22 04:22:11,925 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 04:22:11,925 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 04:22:11,925 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 04:22:11,926 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-06-22 04:22:11,931 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [62] ULTIMATE.startENTRY-->L33: Formula: (and (<= 0 v_ULTIMATE.start_main_~x~0_8) (<= 0 v_ULTIMATE.start_main_~i~0_8)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8, ULTIMATE.start_main_#t~ret4=|v_ULTIMATE.start_main_#t~ret4_5|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_#t~ret4] 7#L33true [45] L33-->fENTRY: Formula: (and (= |v_f_#in~iInParam_2| v_ULTIMATE.start_main_~i~0_7) (= |v_f_#in~xInParam_2| v_ULTIMATE.start_main_~x~0_7)) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} OutVars{f_#in~i=|v_f_#in~iInParam_2|, f_#in~x=|v_f_#in~xInParam_2|} AuxVars[] AssignedVars[f_#in~i, f_#in~x]< 8#fENTRYtrue [2020-06-22 04:22:11,932 INFO L796 eck$LassoCheckResult]: Loop: 8#fENTRYtrue [44] fENTRY-->L18: Formula: (and (= v_f_~x_1 |v_f_#in~x_1|) (= v_f_~i_1 |v_f_#in~i_1|)) InVars {f_#in~x=|v_f_#in~x_1|, f_#in~i=|v_f_#in~i_1|} OutVars{f_~i=v_f_~i_1, f_#in~x=|v_f_#in~x_1|, f_#in~i=|v_f_#in~i_1|, f_~x=v_f_~x_1} AuxVars[] AssignedVars[f_~i, f_~x] 12#L18true [57] L18-->L21: Formula: (> 0 v_f_~i_3) InVars {f_~i=v_f_~i_3} OutVars{f_~i=v_f_~i_3} AuxVars[] AssignedVars[] 3#L21true [32] L21-->gENTRY: Formula: (and (= |v_g_#in~cInParam_1| v_f_~i_5) (= |v_g_#in~bInParam_1| v_f_~x_4) (= |v_g_#in~aInParam_1| (+ v_f_~i_5 (- 1)))) InVars {f_~i=v_f_~i_5, f_~x=v_f_~x_4} OutVars{g_#in~a=|v_g_#in~aInParam_1|, g_#in~b=|v_g_#in~bInParam_1|, g_#in~c=|v_g_#in~cInParam_1|} AuxVars[] AssignedVars[g_#in~a, g_#in~b, g_#in~c]< 5#gENTRYtrue [43] gENTRY-->L26: Formula: (and (= v_g_~a_1 |v_g_#in~a_1|) (= v_g_~c_1 |v_g_#in~c_1|) (= v_g_~b_1 |v_g_#in~b_1|)) InVars {g_#in~a=|v_g_#in~a_1|, g_#in~b=|v_g_#in~b_1|, g_#in~c=|v_g_#in~c_1|} OutVars{g_#in~a=|v_g_#in~a_1|, g_~c=v_g_~c_1, g_#in~b=|v_g_#in~b_1|, g_#in~c=|v_g_#in~c_1|, g_~b=v_g_~b_1, g_~a=v_g_~a_1} AuxVars[] AssignedVars[g_~c, g_~b, g_~a] 10#L26true [46] L26-->fENTRY: Formula: (and (= |v_f_#in~xInParam_1| (+ v_g_~b_3 v_g_~c_3)) (= |v_f_#in~iInParam_1| v_g_~a_3)) InVars {g_~c=v_g_~c_3, g_~b=v_g_~b_3, g_~a=v_g_~a_3} OutVars{f_#in~i=|v_f_#in~iInParam_1|, f_#in~x=|v_f_#in~xInParam_1|} AuxVars[] AssignedVars[f_#in~i, f_#in~x]< 8#fENTRYtrue [2020-06-22 04:22:11,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 04:22:11,938 INFO L82 PathProgramCache]: Analyzing trace with hash 2928, now seen corresponding path program 1 times [2020-06-22 04:22:11,940 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 04:22:11,940 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 04:22:11,960 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:22:11,961 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 04:22:11,961 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:22:11,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:22:11,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:22:12,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 04:22:12,013 INFO L82 PathProgramCache]: Analyzing trace with hash 70994293, now seen corresponding path program 1 times [2020-06-22 04:22:12,013 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 04:22:12,013 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 04:22:12,017 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:22:12,017 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 04:22:12,017 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:22:12,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:22:12,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:22:12,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 04:22:12,057 INFO L82 PathProgramCache]: Analyzing trace with hash -2030826650, now seen corresponding path program 1 times [2020-06-22 04:22:12,057 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 04:22:12,057 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 04:22:12,058 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:22:12,058 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 04:22:12,059 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:22:12,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 04:22:12,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 04:22:12,137 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 04:22:12,137 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-06-22 04:22:12,412 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 04:22:12,413 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 04:22:12,414 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 04:22:12,414 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 04:22:12,414 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 04:22:12,414 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 04:22:12,414 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 04:22:12,414 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 04:22:12,415 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 04:22:12,415 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 04:22:12,415 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 04:22:12,434 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:22:12,441 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:22:12,444 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:22:12,447 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:22:12,449 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:22:12,460 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:22:12,463 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:22:12,466 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:22:12,468 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:22:12,471 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:22:12,473 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:22:12,475 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:22:12,478 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:22:12,587 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 04:22:12,588 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 04:22:12,599 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 04:22:12,599 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 04:22:12,609 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 04:22:12,610 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {g_#res=0} Honda state: {g_#res=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 [2020-06-22 04:22:12,640 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 04:22:12,640 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 04:22:12,644 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 04:22:12,644 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {g_~b=0} Honda state: {g_~b=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 04:22:12,673 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 04:22:12,673 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 04:22:12,676 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 04:22:12,677 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {g_~c=0} Honda state: {g_~c=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 04:22:12,707 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 04:22:12,707 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 04:22:12,711 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 04:22:12,712 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {g_~a=0} Honda state: {g_~a=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 04:22:12,742 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 04:22:12,742 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 04:22:12,779 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 04:22:12,780 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 04:22:12,864 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 04:22:12,864 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f_#in~x=0, f_#in~i=-16} Honda state: {f_#in~x=0, f_#in~i=-16} Generalized eigenvectors: [{f_#in~x=-7, f_#in~i=-1}, {f_#in~x=-1, f_#in~i=0}, {f_#in~x=-8, f_#in~i=0}] Lambdas: [1, 1, 1] Nus: [1, 0] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 04:22:12,892 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 04:22:12,893 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 04:22:12,896 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 04:22:12,897 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {g_#in~b=0} Honda state: {g_#in~b=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 04:22:12,925 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 04:22:12,926 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 04:22:12,929 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 04:22:12,930 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {g_#t~ret1=0} Honda state: {g_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 04:22:12,958 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 04:22:12,958 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 04:22:12,962 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 04:22:12,962 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f_#res=0} Honda state: {f_#res=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 [2020-06-22 04:22:12,995 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 04:22:12,996 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 04:22:12,999 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 04:22:13,000 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f_#t~ret0=0} Honda state: {f_#t~ret0=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 [2020-06-22 04:22:13,029 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 04:22:13,029 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 04:22:13,033 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 04:22:13,033 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f_~x=0} Honda state: {f_~x=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) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 04:22:13,061 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 04:22:13,062 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 04:22:13,065 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 04:22:13,065 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {g_#in~a=0} Honda state: {g_#in~a=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 [2020-06-22 04:22:13,095 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 04:22:13,095 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 04:22:13,099 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 04:22:13,099 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f_~i=0} Honda state: {f_~i=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 [2020-06-22 04:22:13,127 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 04:22:13,127 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 04:22:13,131 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 04:22:13,131 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {g_#in~c=0} Honda state: {g_#in~c=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2020-06-22 04:22:13,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-06-22 04:22:13,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-06-22 04:22:13,174 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 5 states. [2020-06-22 04:22:13,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 04:22:13,244 INFO L93 Difference]: Finished difference Result 22 states and 26 transitions. [2020-06-22 04:22:13,245 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-06-22 04:22:13,249 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 26 transitions. [2020-06-22 04:22:13,254 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-06-22 04:22:13,259 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 11 states and 12 transitions. [2020-06-22 04:22:13,260 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2020-06-22 04:22:13,261 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2020-06-22 04:22:13,261 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 12 transitions. [2020-06-22 04:22:13,262 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 04:22:13,262 INFO L706 BuchiCegarLoop]: Abstraction has 11 states and 12 transitions. [2020-06-22 04:22:13,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 12 transitions. [2020-06-22 04:22:13,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2020-06-22 04:22:13,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-06-22 04:22:13,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2020-06-22 04:22:13,294 INFO L729 BuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2020-06-22 04:22:13,294 INFO L609 BuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2020-06-22 04:22:13,294 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2020-06-22 04:22:13,294 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 10 transitions. [2020-06-22 04:22:13,295 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-06-22 04:22:13,295 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 04:22:13,295 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 04:22:13,295 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-06-22 04:22:13,295 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-06-22 04:22:13,296 INFO L794 eck$LassoCheckResult]: Stem: 53#ULTIMATE.startENTRY [62] ULTIMATE.startENTRY-->L33: Formula: (and (<= 0 v_ULTIMATE.start_main_~x~0_8) (<= 0 v_ULTIMATE.start_main_~i~0_8)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8, ULTIMATE.start_main_#t~ret4=|v_ULTIMATE.start_main_#t~ret4_5|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_#t~ret4] 50#L33 [45] L33-->fENTRY: Formula: (and (= |v_f_#in~iInParam_2| v_ULTIMATE.start_main_~i~0_7) (= |v_f_#in~xInParam_2| v_ULTIMATE.start_main_~x~0_7)) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} OutVars{f_#in~i=|v_f_#in~iInParam_2|, f_#in~x=|v_f_#in~xInParam_2|} AuxVars[] AssignedVars[f_#in~i, f_#in~x]< 56#fENTRY [44] fENTRY-->L18: Formula: (and (= v_f_~x_1 |v_f_#in~x_1|) (= v_f_~i_1 |v_f_#in~i_1|)) InVars {f_#in~x=|v_f_#in~x_1|, f_#in~i=|v_f_#in~i_1|} OutVars{f_~i=v_f_~i_1, f_#in~x=|v_f_#in~x_1|, f_#in~i=|v_f_#in~i_1|, f_~x=v_f_~x_1} AuxVars[] AssignedVars[f_~i, f_~x] 57#L18 [58] L18-->L21: Formula: (< 0 v_f_~i_3) InVars {f_~i=v_f_~i_3} OutVars{f_~i=v_f_~i_3} AuxVars[] AssignedVars[] 49#L21 [2020-06-22 04:22:13,296 INFO L796 eck$LassoCheckResult]: Loop: 49#L21 [32] L21-->gENTRY: Formula: (and (= |v_g_#in~cInParam_1| v_f_~i_5) (= |v_g_#in~bInParam_1| v_f_~x_4) (= |v_g_#in~aInParam_1| (+ v_f_~i_5 (- 1)))) InVars {f_~i=v_f_~i_5, f_~x=v_f_~x_4} OutVars{g_#in~a=|v_g_#in~aInParam_1|, g_#in~b=|v_g_#in~bInParam_1|, g_#in~c=|v_g_#in~cInParam_1|} AuxVars[] AssignedVars[g_#in~a, g_#in~b, g_#in~c]< 51#gENTRY [43] gENTRY-->L26: Formula: (and (= v_g_~a_1 |v_g_#in~a_1|) (= v_g_~c_1 |v_g_#in~c_1|) (= v_g_~b_1 |v_g_#in~b_1|)) InVars {g_#in~a=|v_g_#in~a_1|, g_#in~b=|v_g_#in~b_1|, g_#in~c=|v_g_#in~c_1|} OutVars{g_#in~a=|v_g_#in~a_1|, g_~c=v_g_~c_1, g_#in~b=|v_g_#in~b_1|, g_#in~c=|v_g_#in~c_1|, g_~b=v_g_~b_1, g_~a=v_g_~a_1} AuxVars[] AssignedVars[g_~c, g_~b, g_~a] 52#L26 [46] L26-->fENTRY: Formula: (and (= |v_f_#in~xInParam_1| (+ v_g_~b_3 v_g_~c_3)) (= |v_f_#in~iInParam_1| v_g_~a_3)) InVars {g_~c=v_g_~c_3, g_~b=v_g_~b_3, g_~a=v_g_~a_3} OutVars{f_#in~i=|v_f_#in~iInParam_1|, f_#in~x=|v_f_#in~xInParam_1|} AuxVars[] AssignedVars[f_#in~i, f_#in~x]< 54#fENTRY [44] fENTRY-->L18: Formula: (and (= v_f_~x_1 |v_f_#in~x_1|) (= v_f_~i_1 |v_f_#in~i_1|)) InVars {f_#in~x=|v_f_#in~x_1|, f_#in~i=|v_f_#in~i_1|} OutVars{f_~i=v_f_~i_1, f_#in~x=|v_f_#in~x_1|, f_#in~i=|v_f_#in~i_1|, f_~x=v_f_~x_1} AuxVars[] AssignedVars[f_~i, f_~x] 55#L18 [57] L18-->L21: Formula: (> 0 v_f_~i_3) InVars {f_~i=v_f_~i_3} OutVars{f_~i=v_f_~i_3} AuxVars[] AssignedVars[] 49#L21 [2020-06-22 04:22:13,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 04:22:13,297 INFO L82 PathProgramCache]: Analyzing trace with hash 2815230, now seen corresponding path program 1 times [2020-06-22 04:22:13,297 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 04:22:13,297 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 04:22:13,298 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:22:13,298 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 04:22:13,298 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:22:13,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:22:13,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:22:13,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 04:22:13,307 INFO L82 PathProgramCache]: Analyzing trace with hash 59508463, now seen corresponding path program 2 times [2020-06-22 04:22:13,307 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 04:22:13,307 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 04:22:13,308 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:22:13,308 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 04:22:13,308 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:22:13,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:22:13,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:22:13,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 04:22:13,320 INFO L82 PathProgramCache]: Analyzing trace with hash -1680627694, now seen corresponding path program 1 times [2020-06-22 04:22:13,320 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 04:22:13,320 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 04:22:13,321 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:22:13,321 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 04:22:13,321 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:22:13,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 04:22:13,419 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 04:22:13,419 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 04:22:13,419 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-06-22 04:22:13,659 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2020-06-22 04:22:13,815 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2020-06-22 04:22:14,043 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 04:22:14,044 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 04:22:14,044 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 04:22:14,044 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 04:22:14,044 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 04:22:14,044 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 04:22:14,044 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 04:22:14,044 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 04:22:14,045 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 04:22:14,045 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 04:22:14,045 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 04:22:14,047 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:22:14,054 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:22:14,068 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:22:14,070 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:22:14,072 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:22:14,075 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:22:14,077 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:22:14,078 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:22:14,080 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:22:14,082 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:22:14,084 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:22:14,161 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 04:22:14,162 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 [2020-06-22 04:22:14,165 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 04:22:14,165 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 04:22:14,169 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 04:22:14,169 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f_#res=0} Honda state: {f_#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 [2020-06-22 04:22:14,197 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 04:22:14,198 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 04:22:14,235 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 04:22:14,235 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 04:22:15,189 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 04:22:15,189 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f_~i=-1, f_#in~x=-8, f_#in~i=-1, f_~x=-8} Honda state: {f_~i=-1, f_#in~x=-8, f_#in~i=-1, f_~x=-8} Generalized eigenvectors: [{f_~i=-1, f_#in~x=0, f_#in~i=-1, f_~x=0}, {f_~i=0, f_#in~x=-1, f_#in~i=0, f_~x=-1}, {f_~i=0, f_#in~x=0, f_#in~i=0, f_~x=0}] Lambdas: [1, 1, 11] Nus: [1, 0] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 04:22:15,220 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 04:22:15,220 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 04:22:15,224 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 04:22:15,224 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f_#t~ret0=0} Honda state: {f_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 04:22:15,252 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 04:22:15,252 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 04:22:15,256 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 04:22:15,256 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {g_#res=0} Honda state: {g_#res=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 [2020-06-22 04:22:15,286 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 04:22:15,286 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 04:22:15,290 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 04:22:15,290 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {g_#in~c=0} Honda state: {g_#in~c=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 [2020-06-22 04:22:15,318 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 04:22:15,318 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 04:22:15,322 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 04:22:15,322 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {g_#t~ret1=0} Honda state: {g_#t~ret1=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 [2020-06-22 04:22:15,350 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 04:22:15,350 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 04:22:15,354 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 04:22:15,354 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {g_~b=0} Honda state: {g_~b=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 04:22:15,381 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 04:22:15,382 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 04:22:15,385 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 04:22:15,385 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {g_#in~b=0} Honda state: {g_#in~b=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 04:22:15,412 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 04:22:15,413 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 04:22:15,416 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 04:22:15,416 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {g_~c=0} Honda state: {g_~c=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 [2020-06-22 04:22:15,444 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 04:22:15,444 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 04:22:15,448 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 04:22:15,448 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {g_~a=0} Honda state: {g_~a=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 [2020-06-22 04:22:15,475 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 04:22:15,476 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 04:22:15,479 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 04:22:15,479 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {g_#in~a=0} Honda state: {g_#in~a=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2020-06-22 04:22:15,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-06-22 04:22:15,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-06-22 04:22:15,505 INFO L87 Difference]: Start difference. First operand 9 states and 10 transitions. cyclomatic complexity: 2 Second operand 7 states. [2020-06-22 04:22:15,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 04:22:15,557 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2020-06-22 04:22:15,557 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-06-22 04:22:15,558 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 10 transitions. [2020-06-22 04:22:15,559 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-06-22 04:22:15,560 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 10 states and 10 transitions. [2020-06-22 04:22:15,560 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2020-06-22 04:22:15,560 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2020-06-22 04:22:15,560 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 10 transitions. [2020-06-22 04:22:15,560 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 04:22:15,561 INFO L706 BuchiCegarLoop]: Abstraction has 10 states and 10 transitions. [2020-06-22 04:22:15,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 10 transitions. [2020-06-22 04:22:15,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 7. [2020-06-22 04:22:15,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-06-22 04:22:15,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2020-06-22 04:22:15,564 INFO L729 BuchiCegarLoop]: Abstraction has 7 states and 7 transitions. [2020-06-22 04:22:15,564 INFO L609 BuchiCegarLoop]: Abstraction has 7 states and 7 transitions. [2020-06-22 04:22:15,564 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2020-06-22 04:22:15,564 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 7 transitions. [2020-06-22 04:22:15,568 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-06-22 04:22:15,569 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 04:22:15,569 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 04:22:15,569 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 04:22:15,569 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-06-22 04:22:15,570 INFO L794 eck$LassoCheckResult]: Stem: 90#ULTIMATE.startENTRY [62] ULTIMATE.startENTRY-->L33: Formula: (and (<= 0 v_ULTIMATE.start_main_~x~0_8) (<= 0 v_ULTIMATE.start_main_~i~0_8)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8, ULTIMATE.start_main_#t~ret4=|v_ULTIMATE.start_main_#t~ret4_5|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_#t~ret4] 89#L33 [45] L33-->fENTRY: Formula: (and (= |v_f_#in~iInParam_2| v_ULTIMATE.start_main_~i~0_7) (= |v_f_#in~xInParam_2| v_ULTIMATE.start_main_~x~0_7)) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} OutVars{f_#in~i=|v_f_#in~iInParam_2|, f_#in~x=|v_f_#in~xInParam_2|} AuxVars[] AssignedVars[f_#in~i, f_#in~x]< 91#fENTRY [2020-06-22 04:22:15,570 INFO L796 eck$LassoCheckResult]: Loop: 91#fENTRY [44] fENTRY-->L18: Formula: (and (= v_f_~x_1 |v_f_#in~x_1|) (= v_f_~i_1 |v_f_#in~i_1|)) InVars {f_#in~x=|v_f_#in~x_1|, f_#in~i=|v_f_#in~i_1|} OutVars{f_~i=v_f_~i_1, f_#in~x=|v_f_#in~x_1|, f_#in~i=|v_f_#in~i_1|, f_~x=v_f_~x_1} AuxVars[] AssignedVars[f_~i, f_~x] 92#L18 [58] L18-->L21: Formula: (< 0 v_f_~i_3) InVars {f_~i=v_f_~i_3} OutVars{f_~i=v_f_~i_3} AuxVars[] AssignedVars[] 86#L21 [32] L21-->gENTRY: Formula: (and (= |v_g_#in~cInParam_1| v_f_~i_5) (= |v_g_#in~bInParam_1| v_f_~x_4) (= |v_g_#in~aInParam_1| (+ v_f_~i_5 (- 1)))) InVars {f_~i=v_f_~i_5, f_~x=v_f_~x_4} OutVars{g_#in~a=|v_g_#in~aInParam_1|, g_#in~b=|v_g_#in~bInParam_1|, g_#in~c=|v_g_#in~cInParam_1|} AuxVars[] AssignedVars[g_#in~a, g_#in~b, g_#in~c]< 88#gENTRY [43] gENTRY-->L26: Formula: (and (= v_g_~a_1 |v_g_#in~a_1|) (= v_g_~c_1 |v_g_#in~c_1|) (= v_g_~b_1 |v_g_#in~b_1|)) InVars {g_#in~a=|v_g_#in~a_1|, g_#in~b=|v_g_#in~b_1|, g_#in~c=|v_g_#in~c_1|} OutVars{g_#in~a=|v_g_#in~a_1|, g_~c=v_g_~c_1, g_#in~b=|v_g_#in~b_1|, g_#in~c=|v_g_#in~c_1|, g_~b=v_g_~b_1, g_~a=v_g_~a_1} AuxVars[] AssignedVars[g_~c, g_~b, g_~a] 87#L26 [46] L26-->fENTRY: Formula: (and (= |v_f_#in~xInParam_1| (+ v_g_~b_3 v_g_~c_3)) (= |v_f_#in~iInParam_1| v_g_~a_3)) InVars {g_~c=v_g_~c_3, g_~b=v_g_~b_3, g_~a=v_g_~a_3} OutVars{f_#in~i=|v_f_#in~iInParam_1|, f_#in~x=|v_f_#in~xInParam_1|} AuxVars[] AssignedVars[f_#in~i, f_#in~x]< 91#fENTRY [2020-06-22 04:22:15,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 04:22:15,571 INFO L82 PathProgramCache]: Analyzing trace with hash 2928, now seen corresponding path program 2 times [2020-06-22 04:22:15,571 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 04:22:15,571 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 04:22:15,574 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:22:15,574 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 04:22:15,575 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:22:15,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:22:15,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:22:15,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 04:22:15,580 INFO L82 PathProgramCache]: Analyzing trace with hash 71024084, now seen corresponding path program 1 times [2020-06-22 04:22:15,581 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 04:22:15,581 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 04:22:15,582 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:22:15,582 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 04:22:15,582 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:22:15,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:22:15,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:22:15,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 04:22:15,593 INFO L82 PathProgramCache]: Analyzing trace with hash -2030796859, now seen corresponding path program 1 times [2020-06-22 04:22:15,593 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 04:22:15,593 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 04:22:15,594 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:22:15,594 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 04:22:15,594 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:22:15,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:22:15,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:22:15,765 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 04:22:15,765 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 04:22:15,765 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 04:22:15,765 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 04:22:15,765 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 04:22:15,765 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 04:22:15,766 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 04:22:15,766 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 04:22:15,766 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-06-22 04:22:15,766 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 04:22:15,766 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 04:22:15,767 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:22:15,770 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:22:15,772 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:22:15,773 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:22:15,775 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:22:15,776 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:22:15,778 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:22:15,784 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:22:15,786 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:22:15,793 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:22:15,795 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:22:15,818 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:22:15,854 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:22:15,923 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 04:22:15,924 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 04:22:15,933 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 04:22:15,933 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 04:22:15,937 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 04:22:15,937 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {g_#t~ret1=0} Honda state: {g_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 04:22:15,968 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 04:22:15,968 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 04:22:15,972 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 04:22:15,972 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {g_~c=0} Honda state: {g_~c=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 04:22:15,999 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 04:22:15,999 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 04:22:16,003 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 04:22:16,003 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {g_~a=0} Honda state: {g_~a=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 [2020-06-22 04:22:16,030 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 04:22:16,030 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 04:22:16,034 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 04:22:16,034 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f_~i=0} Honda state: {f_~i=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 32 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 32 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 04:22:16,061 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 04:22:16,061 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 04:22:16,065 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 04:22:16,065 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {g_#res=0} Honda state: {g_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 33 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 33 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 04:22:16,092 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 04:22:16,092 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 04:22:16,095 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 04:22:16,096 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f_~x=0} Honda state: {f_~x=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 34 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 34 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 04:22:16,123 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 04:22:16,124 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 04:22:16,127 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 04:22:16,127 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {g_#in~c=0} Honda state: {g_#in~c=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 35 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 35 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 04:22:16,156 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 04:22:16,156 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 04:22:16,159 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 04:22:16,160 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {g_~b=0} Honda state: {g_~b=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 36 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 36 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 04:22:16,188 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 04:22:16,188 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 04:22:16,192 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 04:22:16,192 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f_#res=0} Honda state: {f_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 37 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 37 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 04:22:16,219 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 04:22:16,219 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 04:22:16,223 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 04:22:16,223 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {g_#in~b=0} Honda state: {g_#in~b=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 38 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 38 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 04:22:16,250 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 04:22:16,250 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 04:22:16,254 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 04:22:16,254 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {g_#in~a=0} Honda state: {g_#in~a=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 39 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 39 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 04:22:16,281 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 04:22:16,282 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 40 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 40 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 04:22:16,312 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 04:22:16,312 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 04:22:16,345 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 04:22:16,347 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 04:22:16,347 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 04:22:16,347 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 04:22:16,347 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 04:22:16,347 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 04:22:16,347 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 04:22:16,348 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 04:22:16,348 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 04:22:16,348 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-06-22 04:22:16,348 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 04:22:16,348 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 04:22:16,349 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:22:16,352 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:22:16,353 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:22:16,355 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:22:16,357 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:22:16,358 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:22:16,360 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:22:16,361 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:22:16,363 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:22:16,364 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:22:16,366 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:22:16,373 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:22:16,375 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:22:16,420 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 04:22:16,426 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 04:22:16,428 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 04:22:16,429 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 04:22:16,429 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 04:22:16,430 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 04:22:16,430 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 04:22:16,430 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 04:22:16,432 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 04:22:16,432 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 04:22:16,435 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 04:22:16,435 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 04:22:16,436 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 04:22:16,436 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 04:22:16,436 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 04:22:16,436 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 04:22:16,436 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 04:22:16,437 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 04:22:16,437 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 04:22:16,438 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 04:22:16,438 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 04:22:16,439 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 04:22:16,439 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 04:22:16,439 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 04:22:16,439 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 04:22:16,440 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 04:22:16,440 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 04:22:16,440 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 04:22:16,441 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 04:22:16,441 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 04:22:16,442 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 04:22:16,442 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 04:22:16,442 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 04:22:16,442 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 04:22:16,442 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 04:22:16,443 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 04:22:16,443 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 04:22:16,444 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 04:22:16,444 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 04:22:16,445 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 04:22:16,445 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 04:22:16,445 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 04:22:16,445 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 04:22:16,445 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 04:22:16,446 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 04:22:16,446 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 04:22:16,447 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 04:22:16,447 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 04:22:16,447 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 04:22:16,448 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 04:22:16,448 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 04:22:16,448 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 04:22:16,448 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 04:22:16,448 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 04:22:16,449 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 04:22:16,449 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 04:22:16,450 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 04:22:16,450 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 04:22:16,450 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 04:22:16,451 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 04:22:16,451 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 04:22:16,451 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 04:22:16,451 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 04:22:16,451 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 04:22:16,452 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 04:22:16,453 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 04:22:16,453 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 04:22:16,453 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 04:22:16,454 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 04:22:16,454 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 04:22:16,454 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 04:22:16,454 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 04:22:16,454 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 04:22:16,455 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 04:22:16,456 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 04:22:16,456 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 04:22:16,456 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 04:22:16,456 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 04:22:16,456 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 04:22:16,457 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 04:22:16,457 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 04:22:16,457 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 04:22:16,458 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 04:22:16,459 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 04:22:16,459 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 04:22:16,459 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 04:22:16,459 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 04:22:16,459 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 04:22:16,460 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 04:22:16,460 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 04:22:16,460 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 04:22:16,461 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 04:22:16,462 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 04:22:16,462 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 04:22:16,462 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 04:22:16,462 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 04:22:16,462 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 04:22:16,463 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 04:22:16,463 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 04:22:16,463 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 04:22:16,468 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 04:22:16,473 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 04:22:16,473 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 04:22:16,476 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 04:22:16,476 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 04:22:16,477 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 04:22:16,478 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(f_#in~i) = 1*f_#in~i Supporting invariants [] [2020-06-22 04:22:16,480 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 04:22:16,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 04:22:16,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 04:22:16,544 INFO L256 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 04:22:16,546 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 04:22:16,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 04:22:16,578 INFO L256 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 11 conjunts are in the unsatisfiable core [2020-06-22 04:22:16,579 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 04:22:16,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 04:22:16,695 INFO L98 LoopCannibalizer]: 6 predicates before loop cannibalization 6 predicates after loop cannibalization [2020-06-22 04:22:16,698 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 6 loop predicates [2020-06-22 04:22:16,699 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 7 states and 7 transitions. cyclomatic complexity: 1 Second operand 6 states. [2020-06-22 04:22:16,867 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 7 states and 7 transitions. cyclomatic complexity: 1. Second operand 6 states. Result 16 states and 17 transitions. Complement of second has 15 states. [2020-06-22 04:22:16,879 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2020-06-22 04:22:16,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-06-22 04:22:16,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 13 transitions. [2020-06-22 04:22:16,883 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 13 transitions. Stem has 2 letters. Loop has 5 letters. [2020-06-22 04:22:16,885 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 04:22:16,885 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 13 transitions. Stem has 7 letters. Loop has 5 letters. [2020-06-22 04:22:16,886 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 04:22:16,886 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 13 transitions. Stem has 2 letters. Loop has 10 letters. [2020-06-22 04:22:16,886 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 04:22:16,891 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 17 transitions. [2020-06-22 04:22:16,893 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 04:22:16,893 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 0 states and 0 transitions. [2020-06-22 04:22:16,893 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-06-22 04:22:16,893 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-06-22 04:22:16,893 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-06-22 04:22:16,893 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 04:22:16,893 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 04:22:16,893 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 04:22:16,893 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 04:22:16,894 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2020-06-22 04:22:16,894 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-06-22 04:22:16,894 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 04:22:16,894 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-06-22 04:22:16,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 04:22:16 BasicIcfg [2020-06-22 04:22:16,900 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-22 04:22:16,900 INFO L168 Benchmark]: Toolchain (without parser) took 5926.83 ms. Allocated memory was 649.6 MB in the beginning and 740.3 MB in the end (delta: 90.7 MB). Free memory was 560.6 MB in the beginning and 544.3 MB in the end (delta: 16.3 MB). Peak memory consumption was 107.0 MB. Max. memory is 50.3 GB. [2020-06-22 04:22:16,901 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 649.6 MB. Free memory is still 585.5 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 04:22:16,901 INFO L168 Benchmark]: CACSL2BoogieTranslator took 304.70 ms. Allocated memory is still 649.6 MB. Free memory was 559.6 MB in the beginning and 617.3 MB in the end (delta: -57.7 MB). Peak memory consumption was 31.6 MB. Max. memory is 50.3 GB. [2020-06-22 04:22:16,902 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.40 ms. Allocated memory is still 649.6 MB. Free memory was 617.3 MB in the beginning and 616.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-06-22 04:22:16,902 INFO L168 Benchmark]: Boogie Preprocessor took 18.39 ms. Allocated memory is still 649.6 MB. Free memory was 616.2 MB in the beginning and 615.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-06-22 04:22:16,903 INFO L168 Benchmark]: RCFGBuilder took 227.91 ms. Allocated memory is still 649.6 MB. Free memory was 615.1 MB in the beginning and 598.9 MB in the end (delta: 16.2 MB). Peak memory consumption was 16.2 MB. Max. memory is 50.3 GB. [2020-06-22 04:22:16,903 INFO L168 Benchmark]: BlockEncodingV2 took 89.16 ms. Allocated memory is still 649.6 MB. Free memory was 598.9 MB in the beginning and 592.4 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 50.3 GB. [2020-06-22 04:22:16,904 INFO L168 Benchmark]: TraceAbstraction took 195.91 ms. Allocated memory is still 649.6 MB. Free memory was 592.4 MB in the beginning and 581.6 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 50.3 GB. [2020-06-22 04:22:16,904 INFO L168 Benchmark]: BuchiAutomizer took 5044.08 ms. Allocated memory was 649.6 MB in the beginning and 740.3 MB in the end (delta: 90.7 MB). Free memory was 581.6 MB in the beginning and 544.3 MB in the end (delta: 37.3 MB). Peak memory consumption was 128.0 MB. Max. memory is 50.3 GB. [2020-06-22 04:22:16,908 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 19 locations, 21 edges - StatisticsResult: Encoded RCFG 12 locations, 14 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 585.5 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 304.70 ms. Allocated memory is still 649.6 MB. Free memory was 559.6 MB in the beginning and 617.3 MB in the end (delta: -57.7 MB). Peak memory consumption was 31.6 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 41.40 ms. Allocated memory is still 649.6 MB. Free memory was 617.3 MB in the beginning and 616.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 18.39 ms. Allocated memory is still 649.6 MB. Free memory was 616.2 MB in the beginning and 615.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * RCFGBuilder took 227.91 ms. Allocated memory is still 649.6 MB. Free memory was 615.1 MB in the beginning and 598.9 MB in the end (delta: 16.2 MB). Peak memory consumption was 16.2 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 89.16 ms. Allocated memory is still 649.6 MB. Free memory was 598.9 MB in the beginning and 592.4 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 50.3 GB. * TraceAbstraction took 195.91 ms. Allocated memory is still 649.6 MB. Free memory was 592.4 MB in the beginning and 581.6 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 5044.08 ms. Allocated memory was 649.6 MB in the beginning and 740.3 MB in the end (delta: 90.7 MB). Free memory was 581.6 MB in the beginning and 544.3 MB in the end (delta: 37.3 MB). Peak memory consumption was 128.0 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, 12 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=12occurred 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 3 terminating modules (2 trivial, 0 deterministic, 1 nondeterministic). One nondeterministic module has affine ranking function \old(i) and consists of 6 locations. 2 modules have a trivial ranking function, the largest among these consists of 7 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.0s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 4.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 9 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 26 SDtfs, 26 SDslu, 64 SDs, 0 SdLazy, 53 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital16 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq183 hnf92 smp100 dnf100 smp100 tf107 neg100 sie106 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 7ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 33 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.4s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-06-22 04:22:06.957 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox2/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox2/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-06-22 04:22:17.143 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check