YES This is Ultimate 0.2.2-dev-e7f90c1-m [2023-02-13 03:40:15,844 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-13 03:40:15,846 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-13 03:40:15,861 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-13 03:40:15,861 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-13 03:40:15,862 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-13 03:40:15,863 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-13 03:40:15,864 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-13 03:40:15,864 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-13 03:40:15,865 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-13 03:40:15,865 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-13 03:40:15,866 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-13 03:40:15,866 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-13 03:40:15,867 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-13 03:40:15,867 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-13 03:40:15,868 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-13 03:40:15,868 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-13 03:40:15,869 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-13 03:40:15,869 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-13 03:40:15,870 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-13 03:40:15,871 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2023-02-13 03:40:15,873 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-13 03:40:15,873 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-13 03:40:15,874 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-13 03:40:15,874 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-13 03:40:15,876 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-13 03:40:15,876 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-13 03:40:15,876 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-13 03:40:15,876 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-13 03:40:15,876 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-13 03:40:15,877 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-13 03:40:15,877 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-13 03:40:15,878 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-13 03:40:15,878 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-13 03:40:15,878 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-13 03:40:15,879 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-13 03:40:15,879 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-13 03:40:15,879 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-13 03:40:15,879 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-13 03:40:15,879 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-13 03:40:15,880 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-13 03:40:15,880 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-13 03:40:15,881 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/Ultimate/./../termcomp2017.epf [2023-02-13 03:40:15,892 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-13 03:40:15,892 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-13 03:40:15,893 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-13 03:40:15,893 INFO L138 SettingsManager]: * Rewrite not-equals=true [2023-02-13 03:40:15,893 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-13 03:40:15,893 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2023-02-13 03:40:15,893 INFO L138 SettingsManager]: * Use SBE=true [2023-02-13 03:40:15,893 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-02-13 03:40:15,893 INFO L138 SettingsManager]: * Use old map elimination=false [2023-02-13 03:40:15,893 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2023-02-13 03:40:15,893 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2023-02-13 03:40:15,894 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2023-02-13 03:40:15,894 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-02-13 03:40:15,894 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2023-02-13 03:40:15,894 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:15,894 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-13 03:40:15,894 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-13 03:40:15,894 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-13 03:40:15,894 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-13 03:40:15,894 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-02-13 03:40:15,894 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2023-02-13 03:40:15,894 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-13 03:40:15,895 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-13 03:40:15,895 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2023-02-13 03:40:15,895 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2023-02-13 03:40:15,895 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-13 03:40:15,895 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-13 03:40:15,895 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-13 03:40:15,895 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/export/starexec/sandbox/solver/Ultimate/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-02-13 03:40:16,025 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-13 03:40:16,044 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-13 03:40:16,045 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-13 03:40:16,046 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-13 03:40:16,047 INFO L275 PluginConnector]: CDTParser initialized [2023-02-13 03:40:16,047 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2023-02-13 03:40:16,084 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/7ea7a2a65d004dd790154e1605857550/FLAGe16d9a27a [2023-02-13 03:40:16,498 INFO L306 CDTParser]: Found 1 translation units. [2023-02-13 03:40:16,498 INFO L160 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2023-02-13 03:40:16,501 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/7ea7a2a65d004dd790154e1605857550/FLAGe16d9a27a [2023-02-13 03:40:16,509 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/7ea7a2a65d004dd790154e1605857550 [2023-02-13 03:40:16,511 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-13 03:40:16,511 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2023-02-13 03:40:16,512 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-13 03:40:16,512 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-13 03:40:16,515 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-13 03:40:16,515 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.02 03:40:16" (1/1) ... [2023-02-13 03:40:16,516 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@279d76e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:16, skipping insertion in model container [2023-02-13 03:40:16,516 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.02 03:40:16" (1/1) ... [2023-02-13 03:40:16,520 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-13 03:40:16,526 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-13 03:40:16,596 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-13 03:40:16,598 INFO L203 MainTranslator]: Completed pre-run [2023-02-13 03:40:16,605 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-13 03:40:16,612 INFO L208 MainTranslator]: Completed translation [2023-02-13 03:40:16,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:16 WrapperNode [2023-02-13 03:40:16,612 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-13 03:40:16,613 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-13 03:40:16,613 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-13 03:40:16,613 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-13 03:40:16,617 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:16" (1/1) ... [2023-02-13 03:40:16,620 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:16" (1/1) ... [2023-02-13 03:40:16,628 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 27 [2023-02-13 03:40:16,628 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-13 03:40:16,629 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-13 03:40:16,629 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-13 03:40:16,629 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-13 03:40:16,633 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:16" (1/1) ... [2023-02-13 03:40:16,633 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:16" (1/1) ... [2023-02-13 03:40:16,634 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:16" (1/1) ... [2023-02-13 03:40:16,634 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:16" (1/1) ... [2023-02-13 03:40:16,635 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:16" (1/1) ... [2023-02-13 03:40:16,637 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:16" (1/1) ... [2023-02-13 03:40:16,637 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:16" (1/1) ... [2023-02-13 03:40:16,638 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-13 03:40:16,638 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-13 03:40:16,638 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-13 03:40:16,638 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-13 03:40:16,639 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:16" (1/1) ... [2023-02-13 03:40:16,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2023-02-13 03:40:16,658 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:16,669 INFO L229 MonitoredProcess]: Starting monitored process 1 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:16,671 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (1)] Waiting until timeout for monitored process [2023-02-13 03:40:16,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-13 03:40:16,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-13 03:40:16,734 INFO L234 CfgBuilder]: Building ICFG [2023-02-13 03:40:16,735 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-13 03:40:16,821 INFO L275 CfgBuilder]: Performing block encoding [2023-02-13 03:40:16,829 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-13 03:40:16,830 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2023-02-13 03:40:16,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:40:16 BoogieIcfgContainer [2023-02-13 03:40:16,831 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-13 03:40:16,832 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2023-02-13 03:40:16,832 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2023-02-13 03:40:16,833 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2023-02-13 03:40:16,834 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:40:16" (1/1) ... [2023-02-13 03:40:16,843 INFO L313 BlockEncoder]: Initial Icfg 11 locations, 15 edges [2023-02-13 03:40:16,844 INFO L258 BlockEncoder]: Using Remove infeasible edges [2023-02-13 03:40:16,844 INFO L263 BlockEncoder]: Using Maximize final states [2023-02-13 03:40:16,845 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2023-02-13 03:40:16,845 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2023-02-13 03:40:16,846 INFO L296 BlockEncoder]: Using Remove sink states [2023-02-13 03:40:16,847 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2023-02-13 03:40:16,847 INFO L179 BlockEncoder]: Using Rewrite not-equals [2023-02-13 03:40:16,862 INFO L185 BlockEncoder]: Using Use SBE [2023-02-13 03:40:16,872 INFO L200 BlockEncoder]: SBE split 4 edges [2023-02-13 03:40:16,875 INFO L70 emoveInfeasibleEdges]: Removed 2 edges and 0 locations because of local infeasibility [2023-02-13 03:40:16,876 INFO L71 MaximizeFinalStates]: 0 new accepting states [2023-02-13 03:40:16,880 INFO L101 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2023-02-13 03:40:16,881 INFO L70 RemoveSinkStates]: Removed 3 edges and 2 locations by removing sink states [2023-02-13 03:40:16,882 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2023-02-13 03:40:16,882 INFO L71 MaximizeFinalStates]: 0 new accepting states [2023-02-13 03:40:16,882 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2023-02-13 03:40:16,882 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2023-02-13 03:40:16,882 INFO L313 BlockEncoder]: Encoded RCFG 6 locations, 11 edges [2023-02-13 03:40:16,883 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 13.02 03:40:16 BasicIcfg [2023-02-13 03:40:16,883 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2023-02-13 03:40:16,884 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-13 03:40:16,884 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-13 03:40:16,886 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-13 03:40:16,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.02 03:40:16" (1/4) ... [2023-02-13 03:40:16,886 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54d48010 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.02 03:40:16, skipping insertion in model container [2023-02-13 03:40:16,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:16" (2/4) ... [2023-02-13 03:40:16,886 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54d48010 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.02 03:40:16, skipping insertion in model container [2023-02-13 03:40:16,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:40:16" (3/4) ... [2023-02-13 03:40:16,887 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54d48010 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.02 03:40:16, skipping insertion in model container [2023-02-13 03:40:16,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 13.02 03:40:16" (4/4) ... [2023-02-13 03:40:16,887 INFO L111 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2023-02-13 03:40:16,897 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2023-02-13 03:40:16,897 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 0 error locations. [2023-02-13 03:40:16,897 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54d48010 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.02 03:40:16, skipping insertion in model container [2023-02-13 03:40:16,898 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-13 03:40:16,898 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-02-13 03:40:16,898 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2023-02-13 03:40:16,900 INFO L275 PluginConnector]: BuchiAutomizer initialized [2023-02-13 03:40:16,900 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:40:16,900 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.02 03:40:16" (1/4) ... [2023-02-13 03:40:16,901 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3f9e488c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.02 03:40:16, skipping insertion in model container [2023-02-13 03:40:16,901 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:40:16,901 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:16" (2/4) ... [2023-02-13 03:40:16,901 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3f9e488c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.02 03:40:16, skipping insertion in model container [2023-02-13 03:40:16,901 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:40:16,901 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:40:16" (3/4) ... [2023-02-13 03:40:16,901 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3f9e488c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.02 03:40:16, skipping insertion in model container [2023-02-13 03:40:16,901 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:40:16,902 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 13.02 03:40:16" (4/4) ... [2023-02-13 03:40:16,902 INFO L322 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2023-02-13 03:40:16,929 INFO L301 stractBuchiCegarLoop]: Interprodecural is true [2023-02-13 03:40:16,929 INFO L302 stractBuchiCegarLoop]: Hoare is true [2023-02-13 03:40:16,929 INFO L303 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-02-13 03:40:16,929 INFO L304 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-02-13 03:40:16,930 INFO L305 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-02-13 03:40:16,930 INFO L306 stractBuchiCegarLoop]: Difference is false [2023-02-13 03:40:16,930 INFO L307 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-02-13 03:40:16,930 INFO L311 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-02-13 03:40:16,933 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:16,955 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-02-13 03:40:16,955 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:40:16,955 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:40:16,959 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2023-02-13 03:40:16,959 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-02-13 03:40:16,960 INFO L333 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-02-13 03:40:16,960 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:16,960 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-02-13 03:40:16,961 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:40:16,961 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:40:16,961 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2023-02-13 03:40:16,961 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-02-13 03:40:16,964 INFO L733 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [66] ULTIMATE.startENTRY-->L18-2: Formula: (and (= |v_ULTIMATE.start_main_~y~0#1_11| 0) (= |v_ULTIMATE.start_main_~m~0#1_6| |v_ULTIMATE.start_main_~x~0#1_8|)) InVars {} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_8|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_11|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_4|, ULTIMATE.start_main_#t~nondet1#1=|v_ULTIMATE.start_main_#t~nondet1#1_6|, ULTIMATE.start_main_#t~nondet2#1=|v_ULTIMATE.start_main_#t~nondet2#1_6|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|, ULTIMATE.start_main_~m~0#1=|v_ULTIMATE.start_main_~m~0#1_6|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_#t~nondet1#1, ULTIMATE.start_main_#t~nondet2#1, ULTIMATE.start_main_#t~nondet0#1, ULTIMATE.start_main_~m~0#1] 4#L18-2true [2023-02-13 03:40:16,964 INFO L735 eck$LassoCheckResult]: Loop: 4#L18-2true [43] L18-2-->L19: Formula: (and (<= 0 |v_ULTIMATE.start_main_~y~0#1_5|) (<= 0 |v_ULTIMATE.start_main_~x~0#1_5|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_5|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_5|} AuxVars[] AssignedVars[] 7#L19true [52] L19-->L19-2: Formula: (= |v_ULTIMATE.start_main_#t~nondet1#1_5| 0) InVars {ULTIMATE.start_main_#t~nondet1#1=|v_ULTIMATE.start_main_#t~nondet1#1_5|} OutVars{} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet1#1] 2#L19-2true [39] L19-2-->L18-2: Formula: (= |v_ULTIMATE.start_main_~y~0#1_9| (+ (- 1) |v_ULTIMATE.start_main_~y~0#1_10|)) InVars {ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_10|} OutVars{ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_9|} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0#1] 4#L18-2true [2023-02-13 03:40:16,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:16,968 INFO L85 PathProgramCache]: Analyzing trace with hash 97, now seen corresponding path program 1 times [2023-02-13 03:40:16,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:16,974 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299040012] [2023-02-13 03:40:16,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:16,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:17,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:17,019 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:17,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:17,034 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:17,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:17,036 INFO L85 PathProgramCache]: Analyzing trace with hash 72765, now seen corresponding path program 1 times [2023-02-13 03:40:17,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:17,036 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904246267] [2023-02-13 03:40:17,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:17,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:17,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:17,042 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:17,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:17,045 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:17,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:17,046 INFO L85 PathProgramCache]: Analyzing trace with hash 2932701, now seen corresponding path program 1 times [2023-02-13 03:40:17,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:17,046 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647521108] [2023-02-13 03:40:17,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:17,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:17,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:17,051 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:17,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:17,054 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:17,090 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:17,090 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:17,091 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:17,091 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:17,091 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-13 03:40:17,091 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:17,091 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:17,091 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:17,091 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2023-02-13 03:40:17,091 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:17,091 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:17,099 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:17,107 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:17,109 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:17,111 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:17,114 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:17,143 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:17,143 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-13 03:40:17,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:17,145 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:17,146 INFO L229 MonitoredProcess]: Starting monitored process 2 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:17,147 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-02-13 03:40:17,147 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:17,148 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:17,158 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:17,158 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:17,177 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-02-13 03:40:17,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:17,178 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:17,178 INFO L229 MonitoredProcess]: Starting monitored process 3 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:17,179 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-02-13 03:40:17,181 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:17,181 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:17,193 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:17,194 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:17,210 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2023-02-13 03:40:17,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:17,211 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:17,211 INFO L229 MonitoredProcess]: Starting monitored process 4 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:17,213 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-02-13 03:40:17,214 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:17,214 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:17,225 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:17,226 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=0} Honda state: {ULTIMATE.start_main_~x~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:17,240 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-02-13 03:40:17,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:17,240 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:17,241 INFO L229 MonitoredProcess]: Starting monitored process 5 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:17,242 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-02-13 03:40:17,243 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:17,244 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:17,275 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2023-02-13 03:40:17,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:17,276 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:17,277 INFO L229 MonitoredProcess]: Starting monitored process 6 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:17,282 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-02-13 03:40:17,283 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-13 03:40:17,283 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:17,307 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-13 03:40:17,308 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2023-02-13 03:40:17,309 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:17,309 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:17,309 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:17,309 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:17,309 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-13 03:40:17,309 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:17,309 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:17,309 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:17,309 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2023-02-13 03:40:17,309 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:17,309 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:17,311 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:17,313 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:17,319 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:17,323 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:17,327 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:17,375 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:17,377 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-13 03:40:17,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:17,378 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:17,379 INFO L229 MonitoredProcess]: Starting monitored process 7 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:17,380 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-02-13 03:40:17,381 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:17,386 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:17,386 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:17,386 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:17,386 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:17,389 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:40:17,389 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:40:17,394 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:40:17,410 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-02-13 03:40:17,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:17,410 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:17,411 INFO L229 MonitoredProcess]: Starting monitored process 8 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:17,412 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-02-13 03:40:17,412 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:17,416 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:17,416 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:40:17,417 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:17,417 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:17,417 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:17,417 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:40:17,417 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:40:17,419 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:40:17,448 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2023-02-13 03:40:17,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:17,449 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:17,450 INFO L229 MonitoredProcess]: Starting monitored process 9 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:17,451 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-02-13 03:40:17,452 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:17,457 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:17,458 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:17,458 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:17,458 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:17,464 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:40:17,464 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:40:17,471 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:40:17,489 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2023-02-13 03:40:17,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:17,490 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:17,491 INFO L229 MonitoredProcess]: Starting monitored process 10 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:17,493 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-02-13 03:40:17,493 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:17,498 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:17,498 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:40:17,498 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:17,498 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:17,499 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:17,499 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:40:17,500 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:40:17,503 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:40:17,539 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2023-02-13 03:40:17,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:17,540 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:17,542 INFO L229 MonitoredProcess]: Starting monitored process 11 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:17,543 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-02-13 03:40:17,544 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:17,554 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:17,554 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:40:17,555 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:17,555 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:17,556 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:17,557 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:40:17,558 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:40:17,563 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-13 03:40:17,569 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-13 03:40:17,569 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-13 03:40:17,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:17,573 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:17,575 INFO L229 MonitoredProcess]: Starting monitored process 12 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:17,578 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-02-13 03:40:17,578 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-13 03:40:17,579 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-13 03:40:17,579 INFO L513 LassoAnalysis]: Proved termination. [2023-02-13 03:40:17,580 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 2*ULTIMATE.start_main_~y~0#1 + 1 Supporting invariants [] [2023-02-13 03:40:17,606 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2023-02-13 03:40:17,614 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-13 03:40:17,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:17,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:17,657 INFO L263 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-13 03:40:17,659 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:17,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:17,668 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-13 03:40:17,669 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:17,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 03:40:17,749 INFO L100 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2023-02-13 03:40:17,753 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-02-13 03:40:17,755 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:17,838 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 22 states and 43 transitions. Complement of second has 7 states. [2023-02-13 03:40:17,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 2 accepting loop states [2023-02-13 03:40:17,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:17,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 28 transitions. [2023-02-13 03:40:17,846 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 1 letters. Loop has 3 letters. [2023-02-13 03:40:17,847 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:17,847 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 4 letters. Loop has 3 letters. [2023-02-13 03:40:17,847 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:17,847 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 1 letters. Loop has 6 letters. [2023-02-13 03:40:17,848 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:17,852 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 43 transitions. [2023-02-13 03:40:17,853 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2023-02-13 03:40:17,855 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 17 states and 32 transitions. [2023-02-13 03:40:17,856 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2023-02-13 03:40:17,856 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2023-02-13 03:40:17,856 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 32 transitions. [2023-02-13 03:40:17,856 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-13 03:40:17,856 INFO L220 hiAutomatonCegarLoop]: Abstraction has 17 states and 32 transitions. [2023-02-13 03:40:17,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 32 transitions. [2023-02-13 03:40:17,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 14. [2023-02-13 03:40:17,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 14 states have (on average 1.8571428571428572) internal successors, (26), 13 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:17,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 26 transitions. [2023-02-13 03:40:17,871 INFO L242 hiAutomatonCegarLoop]: Abstraction has 14 states and 26 transitions. [2023-02-13 03:40:17,871 INFO L426 stractBuchiCegarLoop]: Abstraction has 14 states and 26 transitions. [2023-02-13 03:40:17,871 INFO L333 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-02-13 03:40:17,871 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 26 transitions. [2023-02-13 03:40:17,872 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-02-13 03:40:17,872 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:40:17,872 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:40:17,872 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-02-13 03:40:17,872 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-02-13 03:40:17,872 INFO L733 eck$LassoCheckResult]: Stem: 74#ULTIMATE.startENTRY [66] ULTIMATE.startENTRY-->L18-2: Formula: (and (= |v_ULTIMATE.start_main_~y~0#1_11| 0) (= |v_ULTIMATE.start_main_~m~0#1_6| |v_ULTIMATE.start_main_~x~0#1_8|)) InVars {} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_8|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_11|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_4|, ULTIMATE.start_main_#t~nondet1#1=|v_ULTIMATE.start_main_#t~nondet1#1_6|, ULTIMATE.start_main_#t~nondet2#1=|v_ULTIMATE.start_main_#t~nondet2#1_6|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|, ULTIMATE.start_main_~m~0#1=|v_ULTIMATE.start_main_~m~0#1_6|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_#t~nondet1#1, ULTIMATE.start_main_#t~nondet2#1, ULTIMATE.start_main_#t~nondet0#1, ULTIMATE.start_main_~m~0#1] 75#L18-2 [43] L18-2-->L19: Formula: (and (<= 0 |v_ULTIMATE.start_main_~y~0#1_5|) (<= 0 |v_ULTIMATE.start_main_~x~0#1_5|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_5|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_5|} AuxVars[] AssignedVars[] 78#L19 [61] L19-->L20-2: Formula: (> |v_ULTIMATE.start_main_#t~nondet1#1_3| 0) InVars {ULTIMATE.start_main_#t~nondet1#1=|v_ULTIMATE.start_main_#t~nondet1#1_3|} OutVars{} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet1#1] 79#L20-2 [65] L20-2-->L20-2: Formula: (and (> |v_ULTIMATE.start_main_#t~nondet2#1_5| 0) (= (+ |v_ULTIMATE.start_main_~y~0#1_8| 1) |v_ULTIMATE.start_main_~y~0#1_7|) (<= |v_ULTIMATE.start_main_~y~0#1_8| |v_ULTIMATE.start_main_~m~0#1_5|)) InVars {ULTIMATE.start_main_#t~nondet2#1=|v_ULTIMATE.start_main_#t~nondet2#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_8|, ULTIMATE.start_main_~m~0#1=|v_ULTIMATE.start_main_~m~0#1_5|} OutVars{ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_7|, ULTIMATE.start_main_~m~0#1=|v_ULTIMATE.start_main_~m~0#1_5|} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_#t~nondet2#1] 80#L20-2 [2023-02-13 03:40:17,872 INFO L735 eck$LassoCheckResult]: Loop: 80#L20-2 [64] L20-2-->L20-2: Formula: (and (< |v_ULTIMATE.start_main_#t~nondet2#1_5| 0) (= (+ |v_ULTIMATE.start_main_~y~0#1_8| 1) |v_ULTIMATE.start_main_~y~0#1_7|) (<= |v_ULTIMATE.start_main_~y~0#1_8| |v_ULTIMATE.start_main_~m~0#1_5|)) InVars {ULTIMATE.start_main_#t~nondet2#1=|v_ULTIMATE.start_main_#t~nondet2#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_8|, ULTIMATE.start_main_~m~0#1=|v_ULTIMATE.start_main_~m~0#1_5|} OutVars{ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_7|, ULTIMATE.start_main_~m~0#1=|v_ULTIMATE.start_main_~m~0#1_5|} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_#t~nondet2#1] 80#L20-2 [2023-02-13 03:40:17,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:17,873 INFO L85 PathProgramCache]: Analyzing trace with hash 2933006, now seen corresponding path program 1 times [2023-02-13 03:40:17,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:17,873 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285668856] [2023-02-13 03:40:17,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:17,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:17,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:17,877 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:17,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:17,880 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:17,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:17,881 INFO L85 PathProgramCache]: Analyzing trace with hash 95, now seen corresponding path program 1 times [2023-02-13 03:40:17,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:17,881 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984538729] [2023-02-13 03:40:17,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:17,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:17,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:17,883 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:17,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:17,885 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:17,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:17,885 INFO L85 PathProgramCache]: Analyzing trace with hash 90923250, now seen corresponding path program 1 times [2023-02-13 03:40:17,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:17,886 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013140639] [2023-02-13 03:40:17,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:17,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:17,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:17,890 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:17,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:17,893 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:17,901 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:17,901 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:17,901 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:17,901 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:17,902 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-13 03:40:17,902 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:17,902 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:17,902 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:17,902 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2023-02-13 03:40:17,902 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:17,902 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:17,903 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:17,904 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:17,905 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:17,909 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:17,925 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:17,926 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-13 03:40:17,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:17,926 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:17,929 INFO L229 MonitoredProcess]: Starting monitored process 13 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:17,930 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-02-13 03:40:17,931 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:17,931 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:17,939 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:17,939 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:17,953 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-02-13 03:40:17,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:17,953 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:17,954 INFO L229 MonitoredProcess]: Starting monitored process 14 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:17,957 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-02-13 03:40:17,957 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:17,957 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:17,965 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:17,965 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:17,982 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2023-02-13 03:40:17,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:17,982 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:17,983 INFO L229 MonitoredProcess]: Starting monitored process 15 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:17,988 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-02-13 03:40:17,991 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:17,991 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:18,012 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2023-02-13 03:40:18,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:18,013 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:18,013 INFO L229 MonitoredProcess]: Starting monitored process 16 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:18,014 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-02-13 03:40:18,015 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-13 03:40:18,015 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:18,126 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-13 03:40:18,130 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2023-02-13 03:40:18,130 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:18,130 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:18,130 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:18,130 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:18,130 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-13 03:40:18,130 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:18,131 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:18,131 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:18,131 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2023-02-13 03:40:18,131 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:18,131 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:18,131 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:18,135 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:18,139 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:18,144 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:18,167 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:18,168 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-13 03:40:18,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:18,168 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:18,170 INFO L229 MonitoredProcess]: Starting monitored process 17 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:18,173 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-02-13 03:40:18,174 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:18,178 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:18,178 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:18,178 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:18,178 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:18,180 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:40:18,180 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:40:18,186 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:40:18,200 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2023-02-13 03:40:18,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:18,201 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:18,201 INFO L229 MonitoredProcess]: Starting monitored process 18 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:18,202 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-02-13 03:40:18,202 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:18,206 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:18,206 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:18,206 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:18,207 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:18,209 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:40:18,209 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:40:18,211 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:40:18,228 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2023-02-13 03:40:18,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:18,228 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:18,229 INFO L229 MonitoredProcess]: Starting monitored process 19 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:18,230 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-02-13 03:40:18,231 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:18,235 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:18,236 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:40:18,236 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:18,236 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:18,236 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:18,237 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:40:18,237 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:40:18,238 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-13 03:40:18,241 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-13 03:40:18,241 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-13 03:40:18,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:18,241 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:18,242 INFO L229 MonitoredProcess]: Starting monitored process 20 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:18,246 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-13 03:40:18,246 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-13 03:40:18,246 INFO L513 LassoAnalysis]: Proved termination. [2023-02-13 03:40:18,246 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_~m~0#1) = -2*ULTIMATE.start_main_~y~0#1 + 2*ULTIMATE.start_main_~m~0#1 + 1 Supporting invariants [] [2023-02-13 03:40:18,247 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-02-13 03:40:18,271 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2023-02-13 03:40:18,272 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-13 03:40:18,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:18,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:18,290 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-13 03:40:18,291 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:18,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:18,301 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-13 03:40:18,302 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:18,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 03:40:18,303 INFO L100 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization [2023-02-13 03:40:18,304 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-02-13 03:40:18,304 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 14 states and 26 transitions. cyclomatic complexity: 14 Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:18,324 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 14 states and 26 transitions. cyclomatic complexity: 14. Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 20 states and 41 transitions. Complement of second has 4 states. [2023-02-13 03:40:18,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-02-13 03:40:18,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:18,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 17 transitions. [2023-02-13 03:40:18,325 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 4 letters. Loop has 1 letters. [2023-02-13 03:40:18,325 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:18,325 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 5 letters. Loop has 1 letters. [2023-02-13 03:40:18,326 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:18,326 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 4 letters. Loop has 2 letters. [2023-02-13 03:40:18,326 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:18,327 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 41 transitions. [2023-02-13 03:40:18,328 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2023-02-13 03:40:18,328 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 18 states and 36 transitions. [2023-02-13 03:40:18,328 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2023-02-13 03:40:18,328 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2023-02-13 03:40:18,328 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 36 transitions. [2023-02-13 03:40:18,329 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-13 03:40:18,329 INFO L220 hiAutomatonCegarLoop]: Abstraction has 18 states and 36 transitions. [2023-02-13 03:40:18,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 36 transitions. [2023-02-13 03:40:18,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 16. [2023-02-13 03:40:18,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 2.125) internal successors, (34), 15 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:18,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 34 transitions. [2023-02-13 03:40:18,330 INFO L242 hiAutomatonCegarLoop]: Abstraction has 16 states and 34 transitions. [2023-02-13 03:40:18,330 INFO L426 stractBuchiCegarLoop]: Abstraction has 16 states and 34 transitions. [2023-02-13 03:40:18,331 INFO L333 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-02-13 03:40:18,331 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 34 transitions. [2023-02-13 03:40:18,331 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2023-02-13 03:40:18,331 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:40:18,331 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:40:18,332 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-02-13 03:40:18,332 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-02-13 03:40:18,332 INFO L733 eck$LassoCheckResult]: Stem: 141#ULTIMATE.startENTRY [66] ULTIMATE.startENTRY-->L18-2: Formula: (and (= |v_ULTIMATE.start_main_~y~0#1_11| 0) (= |v_ULTIMATE.start_main_~m~0#1_6| |v_ULTIMATE.start_main_~x~0#1_8|)) InVars {} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_8|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_11|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_4|, ULTIMATE.start_main_#t~nondet1#1=|v_ULTIMATE.start_main_#t~nondet1#1_6|, ULTIMATE.start_main_#t~nondet2#1=|v_ULTIMATE.start_main_#t~nondet2#1_6|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|, ULTIMATE.start_main_~m~0#1=|v_ULTIMATE.start_main_~m~0#1_6|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_#t~nondet1#1, ULTIMATE.start_main_#t~nondet2#1, ULTIMATE.start_main_#t~nondet0#1, ULTIMATE.start_main_~m~0#1] 142#L18-2 [43] L18-2-->L19: Formula: (and (<= 0 |v_ULTIMATE.start_main_~y~0#1_5|) (<= 0 |v_ULTIMATE.start_main_~x~0#1_5|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_5|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_5|} AuxVars[] AssignedVars[] 145#L19 [61] L19-->L20-2: Formula: (> |v_ULTIMATE.start_main_#t~nondet1#1_3| 0) InVars {ULTIMATE.start_main_#t~nondet1#1=|v_ULTIMATE.start_main_#t~nondet1#1_3|} OutVars{} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet1#1] 148#L20-2 [64] L20-2-->L20-2: Formula: (and (< |v_ULTIMATE.start_main_#t~nondet2#1_5| 0) (= (+ |v_ULTIMATE.start_main_~y~0#1_8| 1) |v_ULTIMATE.start_main_~y~0#1_7|) (<= |v_ULTIMATE.start_main_~y~0#1_8| |v_ULTIMATE.start_main_~m~0#1_5|)) InVars {ULTIMATE.start_main_#t~nondet2#1=|v_ULTIMATE.start_main_#t~nondet2#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_8|, ULTIMATE.start_main_~m~0#1=|v_ULTIMATE.start_main_~m~0#1_5|} OutVars{ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_7|, ULTIMATE.start_main_~m~0#1=|v_ULTIMATE.start_main_~m~0#1_5|} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_#t~nondet2#1] 149#L20-2 [2023-02-13 03:40:18,332 INFO L735 eck$LassoCheckResult]: Loop: 149#L20-2 [64] L20-2-->L20-2: Formula: (and (< |v_ULTIMATE.start_main_#t~nondet2#1_5| 0) (= (+ |v_ULTIMATE.start_main_~y~0#1_8| 1) |v_ULTIMATE.start_main_~y~0#1_7|) (<= |v_ULTIMATE.start_main_~y~0#1_8| |v_ULTIMATE.start_main_~m~0#1_5|)) InVars {ULTIMATE.start_main_#t~nondet2#1=|v_ULTIMATE.start_main_#t~nondet2#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_8|, ULTIMATE.start_main_~m~0#1=|v_ULTIMATE.start_main_~m~0#1_5|} OutVars{ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_7|, ULTIMATE.start_main_~m~0#1=|v_ULTIMATE.start_main_~m~0#1_5|} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_#t~nondet2#1] 149#L20-2 [2023-02-13 03:40:18,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:18,332 INFO L85 PathProgramCache]: Analyzing trace with hash 2933005, now seen corresponding path program 1 times [2023-02-13 03:40:18,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:18,333 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096811493] [2023-02-13 03:40:18,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:18,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:18,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:18,336 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:18,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:18,339 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:18,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:18,339 INFO L85 PathProgramCache]: Analyzing trace with hash 95, now seen corresponding path program 2 times [2023-02-13 03:40:18,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:18,340 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408337735] [2023-02-13 03:40:18,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:18,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:18,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:18,342 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:18,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:18,344 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:18,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:18,344 INFO L85 PathProgramCache]: Analyzing trace with hash 90923219, now seen corresponding path program 2 times [2023-02-13 03:40:18,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:18,344 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586232750] [2023-02-13 03:40:18,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:18,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:18,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:18,348 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:18,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:18,351 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:18,360 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:18,360 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:18,360 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:18,360 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:18,360 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-13 03:40:18,360 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:18,360 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:18,360 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:18,360 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2023-02-13 03:40:18,361 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:18,361 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:18,361 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:18,363 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:18,364 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:18,365 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:18,381 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:18,381 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-13 03:40:18,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:18,381 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:18,382 INFO L229 MonitoredProcess]: Starting monitored process 21 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:18,383 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2023-02-13 03:40:18,384 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:18,384 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:18,391 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:18,392 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:18,406 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2023-02-13 03:40:18,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:18,407 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:18,407 INFO L229 MonitoredProcess]: Starting monitored process 22 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:18,408 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-02-13 03:40:18,408 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:18,409 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:18,416 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:18,416 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2#1=-1} Honda state: {ULTIMATE.start_main_#t~nondet2#1=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:18,430 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2023-02-13 03:40:18,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:18,430 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:18,431 INFO L229 MonitoredProcess]: Starting monitored process 23 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:18,432 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2023-02-13 03:40:18,432 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:18,433 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:18,449 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:18,449 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_5=0} Honda state: {v_rep~unnamed0~0~false_5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:18,475 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2023-02-13 03:40:18,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:18,476 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:18,478 INFO L229 MonitoredProcess]: Starting monitored process 24 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:18,479 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2023-02-13 03:40:18,479 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:18,480 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:18,532 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2023-02-13 03:40:18,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:18,533 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:18,534 INFO L229 MonitoredProcess]: Starting monitored process 25 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:18,536 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2023-02-13 03:40:18,536 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-13 03:40:18,536 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:18,664 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-13 03:40:18,666 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2023-02-13 03:40:18,666 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:18,666 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:18,666 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:18,666 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:18,666 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-13 03:40:18,666 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:18,667 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:18,667 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:18,667 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2023-02-13 03:40:18,667 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:18,667 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:18,667 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:18,672 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:18,676 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:18,684 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:18,718 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:18,718 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-13 03:40:18,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:18,719 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:18,720 INFO L229 MonitoredProcess]: Starting monitored process 26 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:18,723 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2023-02-13 03:40:18,724 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:18,732 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:18,732 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:40:18,733 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:18,733 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:18,733 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:18,734 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:40:18,735 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:40:18,737 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:40:18,766 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2023-02-13 03:40:18,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:18,767 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:18,767 INFO L229 MonitoredProcess]: Starting monitored process 27 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:18,769 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2023-02-13 03:40:18,770 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:18,779 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:18,780 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:18,780 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:18,780 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:18,784 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:40:18,784 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:40:18,790 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:40:18,827 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2023-02-13 03:40:18,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:18,828 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:18,830 INFO L229 MonitoredProcess]: Starting monitored process 28 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:18,831 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2023-02-13 03:40:18,832 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:18,836 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:18,837 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:40:18,837 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:18,837 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:18,837 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:18,839 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:40:18,839 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:40:18,841 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-13 03:40:18,847 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-13 03:40:18,847 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-13 03:40:18,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:18,847 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:18,848 INFO L229 MonitoredProcess]: Starting monitored process 29 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:18,851 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-13 03:40:18,851 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-13 03:40:18,851 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2023-02-13 03:40:18,851 INFO L513 LassoAnalysis]: Proved termination. [2023-02-13 03:40:18,851 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_~m~0#1) = -2*ULTIMATE.start_main_~y~0#1 + 2*ULTIMATE.start_main_~m~0#1 + 1 Supporting invariants [] [2023-02-13 03:40:18,889 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2023-02-13 03:40:18,891 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-13 03:40:18,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:18,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:18,914 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-13 03:40:18,915 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:18,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:18,925 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-13 03:40:18,925 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:18,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 03:40:18,927 INFO L100 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization [2023-02-13 03:40:18,927 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-02-13 03:40:18,927 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 16 states and 34 transitions. cyclomatic complexity: 20 Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:18,951 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 16 states and 34 transitions. cyclomatic complexity: 20. Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 27 states and 69 transitions. Complement of second has 4 states. [2023-02-13 03:40:18,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-02-13 03:40:18,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:18,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 17 transitions. [2023-02-13 03:40:18,953 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 4 letters. Loop has 1 letters. [2023-02-13 03:40:18,953 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:18,953 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 5 letters. Loop has 1 letters. [2023-02-13 03:40:18,953 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:18,953 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 4 letters. Loop has 2 letters. [2023-02-13 03:40:18,954 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:18,955 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 69 transitions. [2023-02-13 03:40:18,957 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 15 [2023-02-13 03:40:18,958 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 24 states and 57 transitions. [2023-02-13 03:40:18,958 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2023-02-13 03:40:18,958 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2023-02-13 03:40:18,958 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 57 transitions. [2023-02-13 03:40:18,958 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-13 03:40:18,959 INFO L220 hiAutomatonCegarLoop]: Abstraction has 24 states and 57 transitions. [2023-02-13 03:40:18,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 57 transitions. [2023-02-13 03:40:18,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 16. [2023-02-13 03:40:18,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 2.125) internal successors, (34), 15 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:18,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 34 transitions. [2023-02-13 03:40:18,961 INFO L242 hiAutomatonCegarLoop]: Abstraction has 16 states and 34 transitions. [2023-02-13 03:40:18,961 INFO L426 stractBuchiCegarLoop]: Abstraction has 16 states and 34 transitions. [2023-02-13 03:40:18,961 INFO L333 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-02-13 03:40:18,961 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 34 transitions. [2023-02-13 03:40:18,962 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2023-02-13 03:40:18,962 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:40:18,962 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:40:18,962 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-02-13 03:40:18,963 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2023-02-13 03:40:18,963 INFO L733 eck$LassoCheckResult]: Stem: 217#ULTIMATE.startENTRY [66] ULTIMATE.startENTRY-->L18-2: Formula: (and (= |v_ULTIMATE.start_main_~y~0#1_11| 0) (= |v_ULTIMATE.start_main_~m~0#1_6| |v_ULTIMATE.start_main_~x~0#1_8|)) InVars {} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_8|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_11|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_4|, ULTIMATE.start_main_#t~nondet1#1=|v_ULTIMATE.start_main_#t~nondet1#1_6|, ULTIMATE.start_main_#t~nondet2#1=|v_ULTIMATE.start_main_#t~nondet2#1_6|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|, ULTIMATE.start_main_~m~0#1=|v_ULTIMATE.start_main_~m~0#1_6|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_#t~nondet1#1, ULTIMATE.start_main_#t~nondet2#1, ULTIMATE.start_main_#t~nondet0#1, ULTIMATE.start_main_~m~0#1] 218#L18-2 [43] L18-2-->L19: Formula: (and (<= 0 |v_ULTIMATE.start_main_~y~0#1_5|) (<= 0 |v_ULTIMATE.start_main_~x~0#1_5|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_5|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_5|} AuxVars[] AssignedVars[] 221#L19 [61] L19-->L20-2: Formula: (> |v_ULTIMATE.start_main_#t~nondet1#1_3| 0) InVars {ULTIMATE.start_main_#t~nondet1#1=|v_ULTIMATE.start_main_#t~nondet1#1_3|} OutVars{} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet1#1] 222#L20-2 [65] L20-2-->L20-2: Formula: (and (> |v_ULTIMATE.start_main_#t~nondet2#1_5| 0) (= (+ |v_ULTIMATE.start_main_~y~0#1_8| 1) |v_ULTIMATE.start_main_~y~0#1_7|) (<= |v_ULTIMATE.start_main_~y~0#1_8| |v_ULTIMATE.start_main_~m~0#1_5|)) InVars {ULTIMATE.start_main_#t~nondet2#1=|v_ULTIMATE.start_main_#t~nondet2#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_8|, ULTIMATE.start_main_~m~0#1=|v_ULTIMATE.start_main_~m~0#1_5|} OutVars{ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_7|, ULTIMATE.start_main_~m~0#1=|v_ULTIMATE.start_main_~m~0#1_5|} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_#t~nondet2#1] 223#L20-2 [2023-02-13 03:40:18,963 INFO L735 eck$LassoCheckResult]: Loop: 223#L20-2 [62] L20-2-->L20-3: Formula: (= |v_ULTIMATE.start_main_#t~nondet2#1_3| 0) InVars {ULTIMATE.start_main_#t~nondet2#1=|v_ULTIMATE.start_main_#t~nondet2#1_3|} OutVars{} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2#1] 225#L20-3 [49] L20-3-->L19-2: Formula: (= |v_ULTIMATE.start_main_~x~0#1_6| (+ (- 1) |v_ULTIMATE.start_main_~x~0#1_7|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_7|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_6|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1] 213#L19-2 [39] L19-2-->L18-2: Formula: (= |v_ULTIMATE.start_main_~y~0#1_9| (+ (- 1) |v_ULTIMATE.start_main_~y~0#1_10|)) InVars {ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_10|} OutVars{ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_9|} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0#1] 214#L18-2 [43] L18-2-->L19: Formula: (and (<= 0 |v_ULTIMATE.start_main_~y~0#1_5|) (<= 0 |v_ULTIMATE.start_main_~x~0#1_5|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_5|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_5|} AuxVars[] AssignedVars[] 219#L19 [60] L19-->L20-2: Formula: (< |v_ULTIMATE.start_main_#t~nondet1#1_3| 0) InVars {ULTIMATE.start_main_#t~nondet1#1=|v_ULTIMATE.start_main_#t~nondet1#1_3|} OutVars{} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet1#1] 228#L20-2 [64] L20-2-->L20-2: Formula: (and (< |v_ULTIMATE.start_main_#t~nondet2#1_5| 0) (= (+ |v_ULTIMATE.start_main_~y~0#1_8| 1) |v_ULTIMATE.start_main_~y~0#1_7|) (<= |v_ULTIMATE.start_main_~y~0#1_8| |v_ULTIMATE.start_main_~m~0#1_5|)) InVars {ULTIMATE.start_main_#t~nondet2#1=|v_ULTIMATE.start_main_#t~nondet2#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_8|, ULTIMATE.start_main_~m~0#1=|v_ULTIMATE.start_main_~m~0#1_5|} OutVars{ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_7|, ULTIMATE.start_main_~m~0#1=|v_ULTIMATE.start_main_~m~0#1_5|} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_#t~nondet2#1] 223#L20-2 [2023-02-13 03:40:18,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:18,964 INFO L85 PathProgramCache]: Analyzing trace with hash 2933006, now seen corresponding path program 2 times [2023-02-13 03:40:18,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:18,964 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236699056] [2023-02-13 03:40:18,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:18,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:18,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:18,969 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:18,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:18,973 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:18,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:18,973 INFO L85 PathProgramCache]: Analyzing trace with hash -1585998628, now seen corresponding path program 1 times [2023-02-13 03:40:18,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:18,974 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974949660] [2023-02-13 03:40:18,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:18,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:18,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:18,978 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:18,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:18,981 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:18,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:18,981 INFO L85 PathProgramCache]: Analyzing trace with hash 318806057, now seen corresponding path program 1 times [2023-02-13 03:40:18,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:18,982 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494396585] [2023-02-13 03:40:18,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:18,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:18,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:18,986 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:18,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:18,990 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:19,058 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:19,058 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:19,058 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:19,058 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:19,058 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-13 03:40:19,058 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:19,058 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:19,058 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:19,058 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2023-02-13 03:40:19,059 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:19,059 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:19,060 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:19,062 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:19,065 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:19,067 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:19,072 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:19,074 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:19,076 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:19,080 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2023-02-13 03:40:19,107 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2023-02-13 03:40:19,133 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2023-02-13 03:40:19,136 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:19,136 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-13 03:40:19,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:19,136 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:19,138 INFO L229 MonitoredProcess]: Starting monitored process 30 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:19,139 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2023-02-13 03:40:19,139 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:19,145 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:19,145 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {} Honda state: {} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:19,168 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2023-02-13 03:40:19,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:19,169 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:19,169 INFO L229 MonitoredProcess]: Starting monitored process 31 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:19,171 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2023-02-13 03:40:19,171 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:19,171 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:19,178 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:19,178 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1#1=-1} Honda state: {ULTIMATE.start_main_#t~nondet1#1=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:19,192 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2023-02-13 03:40:19,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:19,193 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:19,194 INFO L229 MonitoredProcess]: Starting monitored process 32 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:19,197 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2023-02-13 03:40:19,197 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:19,197 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:19,215 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:19,215 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:19,237 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2023-02-13 03:40:19,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:19,238 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:19,239 INFO L229 MonitoredProcess]: Starting monitored process 33 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:19,240 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2023-02-13 03:40:19,241 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:19,241 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:19,259 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:19,260 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0#1=1, ULTIMATE.start_main_~m~0#1=0} Honda state: {ULTIMATE.start_main_~y~0#1=1, ULTIMATE.start_main_~m~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:19,288 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2023-02-13 03:40:19,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:19,288 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:19,290 INFO L229 MonitoredProcess]: Starting monitored process 34 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:19,292 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2023-02-13 03:40:19,292 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:19,293 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:19,305 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:19,306 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2#1=0} Honda state: {ULTIMATE.start_main_#t~nondet2#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:19,335 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2023-02-13 03:40:19,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:19,336 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:19,337 INFO L229 MonitoredProcess]: Starting monitored process 35 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:19,339 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2023-02-13 03:40:19,339 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:19,339 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:19,357 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:19,358 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_7=0} Honda state: {v_rep~unnamed0~0~false_7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:19,385 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2023-02-13 03:40:19,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:19,386 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:19,387 INFO L229 MonitoredProcess]: Starting monitored process 36 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:19,390 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2023-02-13 03:40:19,391 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:19,391 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:19,434 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2023-02-13 03:40:19,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:19,435 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:19,436 INFO L229 MonitoredProcess]: Starting monitored process 37 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:19,438 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2023-02-13 03:40:19,438 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-13 03:40:19,439 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:19,475 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-13 03:40:19,477 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2023-02-13 03:40:19,477 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:19,477 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:19,478 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:19,478 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:19,478 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-13 03:40:19,478 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:19,478 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:19,479 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:19,479 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2023-02-13 03:40:19,479 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:19,479 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:19,482 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:19,485 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:19,488 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:19,497 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:19,500 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:19,506 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:19,508 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:19,577 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:19,577 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-13 03:40:19,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:19,578 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:19,580 INFO L229 MonitoredProcess]: Starting monitored process 38 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:19,583 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2023-02-13 03:40:19,584 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:19,591 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:19,591 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:40:19,591 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:19,591 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:19,592 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:19,593 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:40:19,593 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:40:19,595 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:40:19,634 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2023-02-13 03:40:19,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:19,635 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:19,636 INFO L229 MonitoredProcess]: Starting monitored process 39 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:19,637 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2023-02-13 03:40:19,637 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:19,642 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:19,642 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:40:19,642 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:19,643 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:19,643 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:19,644 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:40:19,644 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:40:19,645 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:40:19,661 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2023-02-13 03:40:19,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:19,662 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:19,663 INFO L229 MonitoredProcess]: Starting monitored process 40 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:19,666 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2023-02-13 03:40:19,666 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:19,675 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:19,675 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:40:19,676 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:19,676 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:19,676 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:19,677 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:40:19,677 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:40:19,681 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:40:19,714 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2023-02-13 03:40:19,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:19,715 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:19,716 INFO L229 MonitoredProcess]: Starting monitored process 41 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:19,718 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2023-02-13 03:40:19,719 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:19,723 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:19,724 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:19,724 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:19,724 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:19,729 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:40:19,729 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:40:19,736 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:40:19,773 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2023-02-13 03:40:19,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:19,774 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:19,775 INFO L229 MonitoredProcess]: Starting monitored process 42 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:19,777 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2023-02-13 03:40:19,778 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:19,782 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:19,783 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:40:19,783 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:19,783 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:19,783 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:19,784 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:40:19,784 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:40:19,789 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-13 03:40:19,793 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-13 03:40:19,794 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-13 03:40:19,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:19,794 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:19,796 INFO L229 MonitoredProcess]: Starting monitored process 43 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:19,797 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2023-02-13 03:40:19,797 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-13 03:40:19,798 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-13 03:40:19,798 INFO L513 LassoAnalysis]: Proved termination. [2023-02-13 03:40:19,798 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2023-02-13 03:40:19,835 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2023-02-13 03:40:19,836 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-13 03:40:19,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:19,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:19,856 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-13 03:40:19,857 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:19,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:19,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-13 03:40:19,872 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:19,922 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 03:40:19,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:19,938 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-13 03:40:19,939 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:19,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:19,989 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-13 03:40:19,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:20,010 INFO L100 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2023-02-13 03:40:20,011 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2023-02-13 03:40:20,011 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 16 states and 34 transitions. cyclomatic complexity: 20 Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:20,114 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 16 states and 34 transitions. cyclomatic complexity: 20. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 86 states and 241 transitions. Complement of second has 31 states. [2023-02-13 03:40:20,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 2 accepting loop states [2023-02-13 03:40:20,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:20,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 38 transitions. [2023-02-13 03:40:20,116 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 38 transitions. Stem has 4 letters. Loop has 6 letters. [2023-02-13 03:40:20,117 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:20,117 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 38 transitions. Stem has 10 letters. Loop has 6 letters. [2023-02-13 03:40:20,117 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:20,118 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 38 transitions. Stem has 4 letters. Loop has 12 letters. [2023-02-13 03:40:20,118 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:20,120 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 86 states and 241 transitions. [2023-02-13 03:40:20,125 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2023-02-13 03:40:20,127 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 86 states to 51 states and 117 transitions. [2023-02-13 03:40:20,127 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2023-02-13 03:40:20,127 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2023-02-13 03:40:20,127 INFO L73 IsDeterministic]: Start isDeterministic. Operand 51 states and 117 transitions. [2023-02-13 03:40:20,128 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-13 03:40:20,128 INFO L220 hiAutomatonCegarLoop]: Abstraction has 51 states and 117 transitions. [2023-02-13 03:40:20,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states and 117 transitions. [2023-02-13 03:40:20,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 33. [2023-02-13 03:40:20,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 33 states have (on average 2.090909090909091) internal successors, (69), 32 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:20,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 69 transitions. [2023-02-13 03:40:20,132 INFO L242 hiAutomatonCegarLoop]: Abstraction has 33 states and 69 transitions. [2023-02-13 03:40:20,132 INFO L426 stractBuchiCegarLoop]: Abstraction has 33 states and 69 transitions. [2023-02-13 03:40:20,132 INFO L333 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-02-13 03:40:20,132 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 33 states and 69 transitions. [2023-02-13 03:40:20,133 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2023-02-13 03:40:20,133 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:40:20,133 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:40:20,133 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-02-13 03:40:20,133 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2023-02-13 03:40:20,134 INFO L733 eck$LassoCheckResult]: Stem: 432#ULTIMATE.startENTRY [66] ULTIMATE.startENTRY-->L18-2: Formula: (and (= |v_ULTIMATE.start_main_~y~0#1_11| 0) (= |v_ULTIMATE.start_main_~m~0#1_6| |v_ULTIMATE.start_main_~x~0#1_8|)) InVars {} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_8|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_11|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_4|, ULTIMATE.start_main_#t~nondet1#1=|v_ULTIMATE.start_main_#t~nondet1#1_6|, ULTIMATE.start_main_#t~nondet2#1=|v_ULTIMATE.start_main_#t~nondet2#1_6|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|, ULTIMATE.start_main_~m~0#1=|v_ULTIMATE.start_main_~m~0#1_6|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_#t~nondet1#1, ULTIMATE.start_main_#t~nondet2#1, ULTIMATE.start_main_#t~nondet0#1, ULTIMATE.start_main_~m~0#1] 433#L18-2 [43] L18-2-->L19: Formula: (and (<= 0 |v_ULTIMATE.start_main_~y~0#1_5|) (<= 0 |v_ULTIMATE.start_main_~x~0#1_5|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_5|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_5|} AuxVars[] AssignedVars[] 444#L19 [61] L19-->L20-2: Formula: (> |v_ULTIMATE.start_main_#t~nondet1#1_3| 0) InVars {ULTIMATE.start_main_#t~nondet1#1=|v_ULTIMATE.start_main_#t~nondet1#1_3|} OutVars{} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet1#1] 445#L20-2 [64] L20-2-->L20-2: Formula: (and (< |v_ULTIMATE.start_main_#t~nondet2#1_5| 0) (= (+ |v_ULTIMATE.start_main_~y~0#1_8| 1) |v_ULTIMATE.start_main_~y~0#1_7|) (<= |v_ULTIMATE.start_main_~y~0#1_8| |v_ULTIMATE.start_main_~m~0#1_5|)) InVars {ULTIMATE.start_main_#t~nondet2#1=|v_ULTIMATE.start_main_#t~nondet2#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_8|, ULTIMATE.start_main_~m~0#1=|v_ULTIMATE.start_main_~m~0#1_5|} OutVars{ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_7|, ULTIMATE.start_main_~m~0#1=|v_ULTIMATE.start_main_~m~0#1_5|} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_#t~nondet2#1] 450#L20-2 [2023-02-13 03:40:20,134 INFO L735 eck$LassoCheckResult]: Loop: 450#L20-2 [62] L20-2-->L20-3: Formula: (= |v_ULTIMATE.start_main_#t~nondet2#1_3| 0) InVars {ULTIMATE.start_main_#t~nondet2#1=|v_ULTIMATE.start_main_#t~nondet2#1_3|} OutVars{} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2#1] 448#L20-3 [49] L20-3-->L19-2: Formula: (= |v_ULTIMATE.start_main_~x~0#1_6| (+ (- 1) |v_ULTIMATE.start_main_~x~0#1_7|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_7|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_6|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1] 451#L19-2 [39] L19-2-->L18-2: Formula: (= |v_ULTIMATE.start_main_~y~0#1_9| (+ (- 1) |v_ULTIMATE.start_main_~y~0#1_10|)) InVars {ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_10|} OutVars{ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_9|} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0#1] 458#L18-2 [43] L18-2-->L19: Formula: (and (<= 0 |v_ULTIMATE.start_main_~y~0#1_5|) (<= 0 |v_ULTIMATE.start_main_~x~0#1_5|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_5|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_5|} AuxVars[] AssignedVars[] 456#L19 [60] L19-->L20-2: Formula: (< |v_ULTIMATE.start_main_#t~nondet1#1_3| 0) InVars {ULTIMATE.start_main_#t~nondet1#1=|v_ULTIMATE.start_main_#t~nondet1#1_3|} OutVars{} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet1#1] 449#L20-2 [64] L20-2-->L20-2: Formula: (and (< |v_ULTIMATE.start_main_#t~nondet2#1_5| 0) (= (+ |v_ULTIMATE.start_main_~y~0#1_8| 1) |v_ULTIMATE.start_main_~y~0#1_7|) (<= |v_ULTIMATE.start_main_~y~0#1_8| |v_ULTIMATE.start_main_~m~0#1_5|)) InVars {ULTIMATE.start_main_#t~nondet2#1=|v_ULTIMATE.start_main_#t~nondet2#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_8|, ULTIMATE.start_main_~m~0#1=|v_ULTIMATE.start_main_~m~0#1_5|} OutVars{ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_7|, ULTIMATE.start_main_~m~0#1=|v_ULTIMATE.start_main_~m~0#1_5|} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_#t~nondet2#1] 450#L20-2 [2023-02-13 03:40:20,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:20,134 INFO L85 PathProgramCache]: Analyzing trace with hash 2933005, now seen corresponding path program 3 times [2023-02-13 03:40:20,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:20,135 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882216171] [2023-02-13 03:40:20,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:20,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:20,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:20,140 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:20,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:20,143 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:20,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:20,143 INFO L85 PathProgramCache]: Analyzing trace with hash -1585998628, now seen corresponding path program 2 times [2023-02-13 03:40:20,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:20,143 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083968089] [2023-02-13 03:40:20,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:20,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:20,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:20,146 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:20,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:20,149 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:20,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:20,149 INFO L85 PathProgramCache]: Analyzing trace with hash -568697624, now seen corresponding path program 1 times [2023-02-13 03:40:20,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:20,149 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355166474] [2023-02-13 03:40:20,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:20,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:20,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:20,153 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:20,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:20,156 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:20,186 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:20,187 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:20,187 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:20,187 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:20,187 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-13 03:40:20,187 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:20,188 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:20,188 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:20,188 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration5_Loop [2023-02-13 03:40:20,188 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:20,188 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:20,190 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:20,196 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:20,199 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:20,201 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:20,204 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:20,206 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:20,213 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:20,293 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:20,293 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-13 03:40:20,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:20,294 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:20,295 INFO L229 MonitoredProcess]: Starting monitored process 44 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:20,297 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2023-02-13 03:40:20,298 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:20,298 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:20,343 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2023-02-13 03:40:20,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:20,344 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:20,345 INFO L229 MonitoredProcess]: Starting monitored process 45 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:20,347 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2023-02-13 03:40:20,347 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-13 03:40:20,347 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:20,403 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-13 03:40:20,405 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2023-02-13 03:40:20,405 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:20,405 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:20,405 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:20,406 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:20,406 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-13 03:40:20,406 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:20,406 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:20,406 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:20,407 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration5_Loop [2023-02-13 03:40:20,407 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:20,407 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:20,409 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:20,413 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:20,418 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:20,421 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:20,424 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:20,427 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:20,434 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:20,500 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:20,501 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-13 03:40:20,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:20,502 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:20,503 INFO L229 MonitoredProcess]: Starting monitored process 46 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:20,510 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2023-02-13 03:40:20,510 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:20,520 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:20,520 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:40:20,521 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:20,521 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:20,521 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:20,522 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:40:20,522 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:40:20,525 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:40:20,562 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2023-02-13 03:40:20,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:20,562 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:20,564 INFO L229 MonitoredProcess]: Starting monitored process 47 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:20,565 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2023-02-13 03:40:20,566 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:20,575 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:20,576 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:40:20,576 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:20,576 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:20,576 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:20,577 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:40:20,577 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:40:20,581 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-13 03:40:20,585 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-13 03:40:20,585 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-13 03:40:20,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:20,585 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:20,588 INFO L229 MonitoredProcess]: Starting monitored process 48 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:20,590 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-13 03:40:20,590 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2023-02-13 03:40:20,590 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-13 03:40:20,590 INFO L513 LassoAnalysis]: Proved termination. [2023-02-13 03:40:20,590 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2023-02-13 03:40:20,623 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2023-02-13 03:40:20,624 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-13 03:40:20,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:20,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:20,645 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-13 03:40:20,646 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:20,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:20,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-13 03:40:20,659 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:20,703 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 03:40:20,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:20,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-13 03:40:20,717 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:20,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:20,752 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-13 03:40:20,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:20,769 INFO L100 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2023-02-13 03:40:20,770 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2023-02-13 03:40:20,770 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 33 states and 69 transitions. cyclomatic complexity: 42 Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:20,874 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 33 states and 69 transitions. cyclomatic complexity: 42. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 243 states and 597 transitions. Complement of second has 31 states. [2023-02-13 03:40:20,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 2 accepting loop states [2023-02-13 03:40:20,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:20,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 38 transitions. [2023-02-13 03:40:20,877 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 38 transitions. Stem has 4 letters. Loop has 6 letters. [2023-02-13 03:40:20,878 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:20,878 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 38 transitions. Stem has 10 letters. Loop has 6 letters. [2023-02-13 03:40:20,878 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:20,879 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 38 transitions. Stem has 4 letters. Loop has 12 letters. [2023-02-13 03:40:20,879 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:20,881 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 243 states and 597 transitions. [2023-02-13 03:40:20,893 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2023-02-13 03:40:20,895 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 243 states to 129 states and 271 transitions. [2023-02-13 03:40:20,895 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2023-02-13 03:40:20,896 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 31 [2023-02-13 03:40:20,896 INFO L73 IsDeterministic]: Start isDeterministic. Operand 129 states and 271 transitions. [2023-02-13 03:40:20,896 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-13 03:40:20,896 INFO L220 hiAutomatonCegarLoop]: Abstraction has 129 states and 271 transitions. [2023-02-13 03:40:20,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states and 271 transitions. [2023-02-13 03:40:20,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 24. [2023-02-13 03:40:20,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 24 states have (on average 1.9166666666666667) internal successors, (46), 23 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:20,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 46 transitions. [2023-02-13 03:40:20,900 INFO L242 hiAutomatonCegarLoop]: Abstraction has 24 states and 46 transitions. [2023-02-13 03:40:20,901 INFO L426 stractBuchiCegarLoop]: Abstraction has 24 states and 46 transitions. [2023-02-13 03:40:20,901 INFO L333 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2023-02-13 03:40:20,901 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 46 transitions. [2023-02-13 03:40:20,902 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-02-13 03:40:20,902 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:40:20,902 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:40:20,902 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1] [2023-02-13 03:40:20,903 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-02-13 03:40:20,903 INFO L733 eck$LassoCheckResult]: Stem: 821#ULTIMATE.startENTRY [66] ULTIMATE.startENTRY-->L18-2: Formula: (and (= |v_ULTIMATE.start_main_~y~0#1_11| 0) (= |v_ULTIMATE.start_main_~m~0#1_6| |v_ULTIMATE.start_main_~x~0#1_8|)) InVars {} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_8|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_11|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_4|, ULTIMATE.start_main_#t~nondet1#1=|v_ULTIMATE.start_main_#t~nondet1#1_6|, ULTIMATE.start_main_#t~nondet2#1=|v_ULTIMATE.start_main_#t~nondet2#1_6|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|, ULTIMATE.start_main_~m~0#1=|v_ULTIMATE.start_main_~m~0#1_6|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_#t~nondet1#1, ULTIMATE.start_main_#t~nondet2#1, ULTIMATE.start_main_#t~nondet0#1, ULTIMATE.start_main_~m~0#1] 822#L18-2 [43] L18-2-->L19: Formula: (and (<= 0 |v_ULTIMATE.start_main_~y~0#1_5|) (<= 0 |v_ULTIMATE.start_main_~x~0#1_5|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_5|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_5|} AuxVars[] AssignedVars[] 832#L19 [61] L19-->L20-2: Formula: (> |v_ULTIMATE.start_main_#t~nondet1#1_3| 0) InVars {ULTIMATE.start_main_#t~nondet1#1=|v_ULTIMATE.start_main_#t~nondet1#1_3|} OutVars{} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet1#1] 831#L20-2 [65] L20-2-->L20-2: Formula: (and (> |v_ULTIMATE.start_main_#t~nondet2#1_5| 0) (= (+ |v_ULTIMATE.start_main_~y~0#1_8| 1) |v_ULTIMATE.start_main_~y~0#1_7|) (<= |v_ULTIMATE.start_main_~y~0#1_8| |v_ULTIMATE.start_main_~m~0#1_5|)) InVars {ULTIMATE.start_main_#t~nondet2#1=|v_ULTIMATE.start_main_#t~nondet2#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_8|, ULTIMATE.start_main_~m~0#1=|v_ULTIMATE.start_main_~m~0#1_5|} OutVars{ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_7|, ULTIMATE.start_main_~m~0#1=|v_ULTIMATE.start_main_~m~0#1_5|} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_#t~nondet2#1] 825#L20-2 [63] L20-2-->L20-3: Formula: (> |v_ULTIMATE.start_main_~y~0#1_6| |v_ULTIMATE.start_main_~m~0#1_4|) InVars {ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_6|, ULTIMATE.start_main_~m~0#1=|v_ULTIMATE.start_main_~m~0#1_4|} OutVars{ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_6|, ULTIMATE.start_main_~m~0#1=|v_ULTIMATE.start_main_~m~0#1_4|} AuxVars[] AssignedVars[] 827#L20-3 [49] L20-3-->L19-2: Formula: (= |v_ULTIMATE.start_main_~x~0#1_6| (+ (- 1) |v_ULTIMATE.start_main_~x~0#1_7|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_7|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_6|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1] 840#L19-2 [39] L19-2-->L18-2: Formula: (= |v_ULTIMATE.start_main_~y~0#1_9| (+ (- 1) |v_ULTIMATE.start_main_~y~0#1_10|)) InVars {ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_10|} OutVars{ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_9|} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0#1] 839#L18-2 [43] L18-2-->L19: Formula: (and (<= 0 |v_ULTIMATE.start_main_~y~0#1_5|) (<= 0 |v_ULTIMATE.start_main_~x~0#1_5|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_5|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_5|} AuxVars[] AssignedVars[] 838#L19 [52] L19-->L19-2: Formula: (= |v_ULTIMATE.start_main_#t~nondet1#1_5| 0) InVars {ULTIMATE.start_main_#t~nondet1#1=|v_ULTIMATE.start_main_#t~nondet1#1_5|} OutVars{} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet1#1] 817#L19-2 [2023-02-13 03:40:20,903 INFO L735 eck$LassoCheckResult]: Loop: 817#L19-2 [39] L19-2-->L18-2: Formula: (= |v_ULTIMATE.start_main_~y~0#1_9| (+ (- 1) |v_ULTIMATE.start_main_~y~0#1_10|)) InVars {ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_10|} OutVars{ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_9|} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0#1] 818#L18-2 [43] L18-2-->L19: Formula: (and (<= 0 |v_ULTIMATE.start_main_~y~0#1_5|) (<= 0 |v_ULTIMATE.start_main_~x~0#1_5|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_5|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_5|} AuxVars[] AssignedVars[] 823#L19 [52] L19-->L19-2: Formula: (= |v_ULTIMATE.start_main_#t~nondet1#1_5| 0) InVars {ULTIMATE.start_main_#t~nondet1#1=|v_ULTIMATE.start_main_#t~nondet1#1_5|} OutVars{} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet1#1] 817#L19-2 [2023-02-13 03:40:20,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:20,904 INFO L85 PathProgramCache]: Analyzing trace with hash -1374265744, now seen corresponding path program 1 times [2023-02-13 03:40:20,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:20,904 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054846144] [2023-02-13 03:40:20,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:20,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:20,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:20,954 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Ended with exit code 0 [2023-02-13 03:40:20,963 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 03:40:20,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-13 03:40:20,963 INFO L335 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054846144] [2023-02-13 03:40:20,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054846144] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-13 03:40:20,964 INFO L335 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1254680437] [2023-02-13 03:40:20,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:20,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-13 03:40:20,965 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:20,966 INFO L229 MonitoredProcess]: Starting monitored process 49 with /export/starexec/sandbox/solver/Ultimate/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-13 03:40:20,967 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2023-02-13 03:40:20,971 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2023-02-13 03:40:20,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:20,983 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-13 03:40:20,984 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:21,015 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 03:40:21,016 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-13 03:40:21,068 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 03:40:21,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1254680437] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-13 03:40:21,069 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-13 03:40:21,069 ERROR L197 FreeRefinementEngine]: {842#true} [844#(and (= (+ |ULTIMATE.start_main_~x~0#1| (* (- 1) |ULTIMATE.start_main_~m~0#1|)) 0) (<= |ULTIMATE.start_main_~y~0#1| 0)), 844#(and (= (+ |ULTIMATE.start_main_~x~0#1| (* (- 1) |ULTIMATE.start_main_~m~0#1|)) 0) (<= |ULTIMATE.start_main_~y~0#1| 0)), 844#(and (= (+ |ULTIMATE.start_main_~x~0#1| (* (- 1) |ULTIMATE.start_main_~m~0#1|)) 0) (<= |ULTIMATE.start_main_~y~0#1| 0)), 845#(and (= (+ |ULTIMATE.start_main_~x~0#1| (* (- 1) |ULTIMATE.start_main_~m~0#1|)) 0) (<= |ULTIMATE.start_main_~y~0#1| 1)), 846#(<= |ULTIMATE.start_main_~x~0#1| 0), 847#(<= (+ |ULTIMATE.start_main_~x~0#1| 1) 0), 847#(<= (+ |ULTIMATE.start_main_~x~0#1| 1) 0), 843#false] {843#false} [2023-02-13 03:40:21,069 ERROR L197 FreeRefinementEngine]: {842#true} [851#(and (<= |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~m~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 0)), 851#(and (<= |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~m~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 0)), 851#(and (<= |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~m~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 0)), 861#(and (<= |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~m~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 1)), 846#(<= |ULTIMATE.start_main_~x~0#1| 0), 847#(<= (+ |ULTIMATE.start_main_~x~0#1| 1) 0), 847#(<= (+ |ULTIMATE.start_main_~x~0#1| 1) 0), 843#false] {843#false} [2023-02-13 03:40:21,070 ERROR L197 FreeRefinementEngine]: {842#true} [893#(or (<= |ULTIMATE.start_main_~x~0#1| 0) (< |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~m~0#1|)), 893#(or (<= |ULTIMATE.start_main_~x~0#1| 0) (< |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~m~0#1|)), 893#(or (<= |ULTIMATE.start_main_~x~0#1| 0) (< |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~m~0#1|)), 889#(or (not (< |ULTIMATE.start_main_~m~0#1| |ULTIMATE.start_main_~y~0#1|)) (<= |ULTIMATE.start_main_~x~0#1| 0)), 846#(<= |ULTIMATE.start_main_~x~0#1| 0), 847#(<= (+ |ULTIMATE.start_main_~x~0#1| 1) 0), 847#(<= (+ |ULTIMATE.start_main_~x~0#1| 1) 0), 843#false] {843#false} [2023-02-13 03:40:21,070 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2023-02-13 03:40:21,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615343995] [2023-02-13 03:40:21,072 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-13 03:40:21,075 INFO L738 eck$LassoCheckResult]: stem already infeasible [2023-02-13 03:40:21,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:21,076 INFO L85 PathProgramCache]: Analyzing trace with hash 68655, now seen corresponding path program 2 times [2023-02-13 03:40:21,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:21,077 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434160699] [2023-02-13 03:40:21,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:21,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:21,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:21,082 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:21,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:21,085 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:21,107 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:21,108 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:21,108 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:21,108 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:21,108 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-13 03:40:21,108 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:21,108 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:21,109 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:21,109 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration6_Loop [2023-02-13 03:40:21,109 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:21,109 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:21,110 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:21,113 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:21,116 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:21,118 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:21,124 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:21,170 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:21,171 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-13 03:40:21,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:21,172 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:21,173 INFO L229 MonitoredProcess]: Starting monitored process 50 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:21,174 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2023-02-13 03:40:21,175 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:21,176 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:21,185 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:21,185 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_11=1} Honda state: {v_rep~unnamed0~0~true_11=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:21,223 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (50)] Ended with exit code 0 [2023-02-13 03:40:21,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:21,224 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:21,225 INFO L229 MonitoredProcess]: Starting monitored process 51 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:21,226 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2023-02-13 03:40:21,227 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:21,227 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:21,247 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:21,247 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_11=0} Honda state: {v_rep~unnamed0~0~false_11=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:21,278 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (51)] Ended with exit code 0 [2023-02-13 03:40:21,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:21,278 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:21,280 INFO L229 MonitoredProcess]: Starting monitored process 52 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:21,281 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2023-02-13 03:40:21,282 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:21,282 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:21,299 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:21,299 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=0} Honda state: {ULTIMATE.start_main_~x~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:21,327 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (52)] Ended with exit code 0 [2023-02-13 03:40:21,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:21,328 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:21,329 INFO L229 MonitoredProcess]: Starting monitored process 53 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:21,330 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2023-02-13 03:40:21,331 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:21,331 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:21,370 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2023-02-13 03:40:21,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:21,371 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:21,372 INFO L229 MonitoredProcess]: Starting monitored process 54 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:21,373 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2023-02-13 03:40:21,374 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-13 03:40:21,374 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:21,437 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-13 03:40:21,439 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (54)] Ended with exit code 0 [2023-02-13 03:40:21,439 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:21,439 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:21,439 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:21,439 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:21,439 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-13 03:40:21,439 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:21,439 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:21,439 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:21,439 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration6_Loop [2023-02-13 03:40:21,439 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:21,440 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:21,440 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:21,443 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:21,448 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:21,451 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:21,453 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:21,491 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:21,492 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-13 03:40:21,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:21,492 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:21,494 INFO L229 MonitoredProcess]: Starting monitored process 55 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:21,495 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2023-02-13 03:40:21,495 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:21,503 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:21,503 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:40:21,503 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:21,504 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:21,504 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:21,505 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:40:21,505 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:40:21,507 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:40:21,541 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Ended with exit code 0 [2023-02-13 03:40:21,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:21,542 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:21,543 INFO L229 MonitoredProcess]: Starting monitored process 56 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:21,544 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2023-02-13 03:40:21,545 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:21,555 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:21,555 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:40:21,555 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:21,556 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:21,556 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:21,557 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:40:21,557 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:40:21,561 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-13 03:40:21,565 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-13 03:40:21,566 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-13 03:40:21,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:21,566 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:21,567 INFO L229 MonitoredProcess]: Starting monitored process 57 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:21,575 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-13 03:40:21,575 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2023-02-13 03:40:21,575 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-13 03:40:21,576 INFO L513 LassoAnalysis]: Proved termination. [2023-02-13 03:40:21,576 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2023-02-13 03:40:21,613 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Ended with exit code 0 [2023-02-13 03:40:21,614 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-13 03:40:21,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:21,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:21,632 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-13 03:40:21,633 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:21,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:21,651 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-13 03:40:21,652 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:21,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 03:40:21,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:21,692 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-13 03:40:21,693 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:21,700 INFO L100 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2023-02-13 03:40:21,700 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2023-02-13 03:40:21,701 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 24 states and 46 transitions. cyclomatic complexity: 26 Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:21,784 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 24 states and 46 transitions. cyclomatic complexity: 26. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 98 states and 186 transitions. Complement of second has 16 states. [2023-02-13 03:40:21,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 2 accepting loop states [2023-02-13 03:40:21,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:21,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 32 transitions. [2023-02-13 03:40:21,787 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 32 transitions. Stem has 9 letters. Loop has 3 letters. [2023-02-13 03:40:21,788 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:21,788 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 32 transitions. Stem has 12 letters. Loop has 3 letters. [2023-02-13 03:40:21,789 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:21,789 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 32 transitions. Stem has 9 letters. Loop has 6 letters. [2023-02-13 03:40:21,792 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:21,794 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 98 states and 186 transitions. [2023-02-13 03:40:21,796 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-13 03:40:21,797 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 98 states to 0 states and 0 transitions. [2023-02-13 03:40:21,797 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-02-13 03:40:21,797 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-02-13 03:40:21,797 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-02-13 03:40:21,797 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-13 03:40:21,797 INFO L220 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-13 03:40:21,798 INFO L242 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-13 03:40:21,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-13 03:40:21,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-02-13 03:40:21,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-02-13 03:40:21,804 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 10 states, 10 states have (on average 1.9) internal successors, (19), 9 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:21,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-13 03:40:21,807 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2023-02-13 03:40:21,807 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2023-02-13 03:40:21,807 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-13 03:40:21,807 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2023-02-13 03:40:21,807 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-02-13 03:40:21,807 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-02-13 03:40:21,807 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-02-13 03:40:21,807 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-13 03:40:21,808 INFO L220 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-13 03:40:21,808 INFO L242 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-13 03:40:21,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-02-13 03:40:21,809 INFO L426 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-13 03:40:21,809 INFO L333 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2023-02-13 03:40:21,809 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-02-13 03:40:21,809 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-13 03:40:21,810 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-02-13 03:40:21,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.02 03:40:21 BasicIcfg [2023-02-13 03:40:21,816 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-02-13 03:40:21,817 INFO L158 Benchmark]: Toolchain (without parser) took 5305.15ms. Allocated memory was 2.1GB in the beginning and 2.6GB in the end (delta: 436.2MB). Free memory was 2.1GB in the beginning and 2.4GB in the end (delta: -302.1MB). Peak memory consumption was 138.3MB. Max. memory is 42.9GB. [2023-02-13 03:40:21,817 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 2.1GB. Free memory is still 2.1GB. There was no memory consumed. Max. memory is 42.9GB. [2023-02-13 03:40:21,817 INFO L158 Benchmark]: CACSL2BoogieTranslator took 100.02ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 11.9MB). Peak memory consumption was 16.8MB. Max. memory is 42.9GB. [2023-02-13 03:40:21,817 INFO L158 Benchmark]: Boogie Procedure Inliner took 15.61ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 42.9GB. [2023-02-13 03:40:21,817 INFO L158 Benchmark]: Boogie Preprocessor took 9.16ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 42.9GB. [2023-02-13 03:40:21,817 INFO L158 Benchmark]: RCFGBuilder took 193.12ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. [2023-02-13 03:40:21,818 INFO L158 Benchmark]: BlockEncodingV2 took 50.99ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 4.5MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. [2023-02-13 03:40:21,818 INFO L158 Benchmark]: TraceAbstraction took 13.85ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 42.9GB. [2023-02-13 03:40:21,818 INFO L158 Benchmark]: BuchiAutomizer took 4918.20ms. Allocated memory was 2.1GB in the beginning and 2.6GB in the end (delta: 436.2MB). Free memory was 2.1GB in the beginning and 2.4GB in the end (delta: -335.0MB). Peak memory consumption was 104.8MB. Max. memory is 42.9GB. [2023-02-13 03:40:21,819 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 11 locations, 15 edges - StatisticsResult: Encoded RCFG 6 locations, 11 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 2.1GB. Free memory is still 2.1GB. There was no memory consumed. Max. memory is 42.9GB. * CACSL2BoogieTranslator took 100.02ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 11.9MB). Peak memory consumption was 16.8MB. Max. memory is 42.9GB. * Boogie Procedure Inliner took 15.61ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 42.9GB. * Boogie Preprocessor took 9.16ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 42.9GB. * RCFGBuilder took 193.12ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. * BlockEncodingV2 took 50.99ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 4.5MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. * TraceAbstraction took 13.85ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 42.9GB. * BuchiAutomizer took 4918.20ms. Allocated memory was 2.1GB in the beginning and 2.6GB in the end (delta: 436.2MB). Free memory was 2.1GB in the beginning and 2.4GB in the end (delta: -335.0MB). Peak memory consumption was 104.8MB. Max. memory is 42.9GB. * 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: Constructed decomposition of program Your program was decomposed into 7 terminating modules (1 trivial, 0 deterministic, 6 nondeterministic). One nondeterministic module has affine ranking function 2 * y + 1 and consists of 5 locations. One nondeterministic module has affine ranking function 2 * m + -2 * y + 1 and consists of 3 locations. One nondeterministic module has affine ranking function 2 * m + -2 * y + 1 and consists of 3 locations. One nondeterministic module has affine ranking function x and consists of 6 locations. One nondeterministic module has affine ranking function x and consists of 6 locations. One nondeterministic module has affine ranking function y and consists of 6 locations. 1 modules have a trivial ranking function, the largest among these consists of 10 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.8s and 7 iterations. TraceHistogramMax:2. Analysis of lassos took 3.6s. Construction of modules took 0.1s. Büchi inclusion checks took 0.8s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 136 StatesRemovedByMinimization, 5 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [6, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 2/2 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 153 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 148 mSDsluCounter, 59 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 86 mSDsCounter, 30 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 203 IncrementalHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 30 mSolverCounterUnsat, 36 mSDtfsCounter, 203 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT5 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital20 mio100 ax168 hnf100 lsp36 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq152 hnf94 smp100 dnf100 smp100 tf112 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 16ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 17 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 6 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.9s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-02-13 03:40:21,859 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Forceful destruction successful, exit code 0 [2023-02-13 03:40:22,064 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Ended with exit code 0 [2023-02-13 03:40:22,262 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (1)] Ended with exit code 0 Received shutdown request...