YES This is Ultimate 0.2.2-dev-e7f90c1-m [2023-02-13 03:40:39,752 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-13 03:40:39,754 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-13 03:40:39,768 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-13 03:40:39,769 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-13 03:40:39,769 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-13 03:40:39,770 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-13 03:40:39,771 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-13 03:40:39,772 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-13 03:40:39,772 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-13 03:40:39,773 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-13 03:40:39,773 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-13 03:40:39,774 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-13 03:40:39,774 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-13 03:40:39,775 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-13 03:40:39,775 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-13 03:40:39,776 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-13 03:40:39,776 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-13 03:40:39,777 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-13 03:40:39,778 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-13 03:40:39,778 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2023-02-13 03:40:39,779 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-13 03:40:39,780 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-13 03:40:39,780 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-13 03:40:39,781 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-13 03:40:39,782 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-13 03:40:39,782 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-13 03:40:39,782 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-13 03:40:39,783 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-13 03:40:39,783 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-13 03:40:39,783 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-13 03:40:39,784 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-13 03:40:39,784 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-13 03:40:39,784 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-13 03:40:39,785 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-13 03:40:39,785 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-13 03:40:39,785 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-13 03:40:39,786 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-13 03:40:39,786 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-13 03:40:39,786 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-13 03:40:39,786 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-13 03:40:39,787 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-13 03:40:39,788 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/Ultimate/./../termcomp2017.epf [2023-02-13 03:40:39,798 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-13 03:40:39,798 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-13 03:40:39,799 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-13 03:40:39,799 INFO L138 SettingsManager]: * Rewrite not-equals=true [2023-02-13 03:40:39,799 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-13 03:40:39,799 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2023-02-13 03:40:39,799 INFO L138 SettingsManager]: * Use SBE=true [2023-02-13 03:40:39,800 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-02-13 03:40:39,800 INFO L138 SettingsManager]: * Use old map elimination=false [2023-02-13 03:40:39,800 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2023-02-13 03:40:39,800 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2023-02-13 03:40:39,800 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2023-02-13 03:40:39,800 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-02-13 03:40:39,800 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2023-02-13 03:40:39,800 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:39,800 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-13 03:40:39,800 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-13 03:40:39,800 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-13 03:40:39,801 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-13 03:40:39,801 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-02-13 03:40:39,801 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2023-02-13 03:40:39,801 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-13 03:40:39,801 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-13 03:40:39,801 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2023-02-13 03:40:39,801 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2023-02-13 03:40:39,801 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-13 03:40:39,801 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-13 03:40:39,801 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-13 03:40:39,801 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-02-13 03:40:39,926 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-13 03:40:39,939 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-13 03:40:39,941 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-13 03:40:39,942 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-13 03:40:39,942 INFO L275 PluginConnector]: CDTParser initialized [2023-02-13 03:40:39,943 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2023-02-13 03:40:39,984 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/c60e40ee0c3440f8a1ae82050d6e4397/FLAGd581f5746 [2023-02-13 03:40:40,332 INFO L306 CDTParser]: Found 1 translation units. [2023-02-13 03:40:40,333 INFO L160 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2023-02-13 03:40:40,336 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/c60e40ee0c3440f8a1ae82050d6e4397/FLAGd581f5746 [2023-02-13 03:40:40,784 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/c60e40ee0c3440f8a1ae82050d6e4397 [2023-02-13 03:40:40,789 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-13 03:40:40,791 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2023-02-13 03:40:40,794 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-13 03:40:40,794 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-13 03:40:40,801 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-13 03:40:40,803 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.02 03:40:40" (1/1) ... [2023-02-13 03:40:40,805 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e56b869 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:40, skipping insertion in model container [2023-02-13 03:40:40,805 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.02 03:40:40" (1/1) ... [2023-02-13 03:40:40,815 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-13 03:40:40,827 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-13 03:40:40,924 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-13 03:40:40,926 INFO L203 MainTranslator]: Completed pre-run [2023-02-13 03:40:40,932 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-13 03:40:40,939 INFO L208 MainTranslator]: Completed translation [2023-02-13 03:40:40,939 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:40 WrapperNode [2023-02-13 03:40:40,939 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-13 03:40:40,940 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-13 03:40:40,940 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-13 03:40:40,940 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-13 03:40:40,948 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:40" (1/1) ... [2023-02-13 03:40:40,956 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:40" (1/1) ... [2023-02-13 03:40:40,973 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 20 [2023-02-13 03:40:40,973 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-13 03:40:40,974 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-13 03:40:40,974 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-13 03:40:40,974 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-13 03:40:40,980 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:40" (1/1) ... [2023-02-13 03:40:40,980 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:40" (1/1) ... [2023-02-13 03:40:40,980 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:40" (1/1) ... [2023-02-13 03:40:40,981 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:40" (1/1) ... [2023-02-13 03:40:40,982 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:40" (1/1) ... [2023-02-13 03:40:40,984 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:40" (1/1) ... [2023-02-13 03:40:40,984 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:40" (1/1) ... [2023-02-13 03:40:40,985 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-13 03:40:40,985 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-13 03:40:40,985 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-13 03:40:40,985 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-13 03:40:40,986 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:40" (1/1) ... [2023-02-13 03:40:40,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2023-02-13 03:40:40,997 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:41,009 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 03:40:41,013 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 03:40:41,059 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-13 03:40:41,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-13 03:40:41,104 INFO L234 CfgBuilder]: Building ICFG [2023-02-13 03:40:41,105 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-13 03:40:41,161 INFO L275 CfgBuilder]: Performing block encoding [2023-02-13 03:40:41,166 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-13 03:40:41,167 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-13 03:40:41,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:40:41 BoogieIcfgContainer [2023-02-13 03:40:41,168 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-13 03:40:41,169 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2023-02-13 03:40:41,169 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2023-02-13 03:40:41,171 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2023-02-13 03:40:41,171 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:40:41" (1/1) ... [2023-02-13 03:40:41,179 INFO L313 BlockEncoder]: Initial Icfg 8 locations, 10 edges [2023-02-13 03:40:41,180 INFO L258 BlockEncoder]: Using Remove infeasible edges [2023-02-13 03:40:41,180 INFO L263 BlockEncoder]: Using Maximize final states [2023-02-13 03:40:41,181 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2023-02-13 03:40:41,181 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2023-02-13 03:40:41,181 INFO L296 BlockEncoder]: Using Remove sink states [2023-02-13 03:40:41,182 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2023-02-13 03:40:41,182 INFO L179 BlockEncoder]: Using Rewrite not-equals [2023-02-13 03:40:41,189 INFO L185 BlockEncoder]: Using Use SBE [2023-02-13 03:40:41,192 INFO L200 BlockEncoder]: SBE split 0 edges [2023-02-13 03:40:41,194 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2023-02-13 03:40:41,195 INFO L71 MaximizeFinalStates]: 0 new accepting states [2023-02-13 03:40:41,200 INFO L101 BaseMinimizeStates]: Removed 8 edges and 4 locations by large block encoding [2023-02-13 03:40:41,201 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2023-02-13 03:40:41,202 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2023-02-13 03:40:41,202 INFO L71 MaximizeFinalStates]: 0 new accepting states [2023-02-13 03:40:41,202 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2023-02-13 03:40:41,202 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2023-02-13 03:40:41,202 INFO L313 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2023-02-13 03:40:41,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 13.02 03:40:41 BasicIcfg [2023-02-13 03:40:41,203 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2023-02-13 03:40:41,204 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-13 03:40:41,204 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-13 03:40:41,205 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-13 03:40:41,206 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.02 03:40:40" (1/4) ... [2023-02-13 03:40:41,206 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a310afc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.02 03:40:41, skipping insertion in model container [2023-02-13 03:40:41,206 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:40" (2/4) ... [2023-02-13 03:40:41,206 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a310afc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.02 03:40:41, skipping insertion in model container [2023-02-13 03:40:41,206 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:40:41" (3/4) ... [2023-02-13 03:40:41,207 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a310afc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.02 03:40:41, skipping insertion in model container [2023-02-13 03:40:41,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 13.02 03:40:41" (4/4) ... [2023-02-13 03:40:41,207 INFO L111 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2023-02-13 03:40:41,217 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2023-02-13 03:40:41,217 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 0 error locations. [2023-02-13 03:40:41,218 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a310afc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.02 03:40:41, skipping insertion in model container [2023-02-13 03:40:41,218 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-13 03:40:41,218 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-02-13 03:40:41,218 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2023-02-13 03:40:41,221 INFO L275 PluginConnector]: BuchiAutomizer initialized [2023-02-13 03:40:41,221 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:40:41,221 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.02 03:40:40" (1/4) ... [2023-02-13 03:40:41,221 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1e0f3832 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.02 03:40:41, skipping insertion in model container [2023-02-13 03:40:41,222 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:40:41,222 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:40" (2/4) ... [2023-02-13 03:40:41,222 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1e0f3832 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.02 03:40:41, skipping insertion in model container [2023-02-13 03:40:41,222 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:40:41,222 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:40:41" (3/4) ... [2023-02-13 03:40:41,222 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1e0f3832 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.02 03:40:41, skipping insertion in model container [2023-02-13 03:40:41,222 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:40:41,222 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 13.02 03:40:41" (4/4) ... [2023-02-13 03:40:41,223 INFO L322 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2023-02-13 03:40:41,250 INFO L301 stractBuchiCegarLoop]: Interprodecural is true [2023-02-13 03:40:41,250 INFO L302 stractBuchiCegarLoop]: Hoare is true [2023-02-13 03:40:41,250 INFO L303 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-02-13 03:40:41,250 INFO L304 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-02-13 03:40:41,251 INFO L305 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-02-13 03:40:41,251 INFO L306 stractBuchiCegarLoop]: Difference is false [2023-02-13 03:40:41,251 INFO L307 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-02-13 03:40:41,251 INFO L311 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-02-13 03:40:41,253 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. 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 03:40:41,262 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-13 03:40:41,263 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:40:41,263 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:40:41,266 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2023-02-13 03:40:41,266 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-13 03:40:41,266 INFO L333 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-02-13 03:40:41,266 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. 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 03:40:41,266 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-13 03:40:41,266 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:40:41,266 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:40:41,267 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2023-02-13 03:40:41,267 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-13 03:40:41,269 INFO L733 eck$LassoCheckResult]: Stem: 2#ULTIMATE.startENTRYtrue [37] ULTIMATE.startENTRY-->L14-2: Formula: true InVars {} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_9|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_6|, 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_3|, ULTIMATE.start_main_#t~nondet2#1=|v_ULTIMATE.start_main_#t~nondet2#1_3|, ULTIMATE.start_main_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_7|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|} 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_~z~0#1, ULTIMATE.start_main_#t~nondet0#1] 4#L14-2true [2023-02-13 03:40:41,270 INFO L735 eck$LassoCheckResult]: Loop: 4#L14-2true [33] L14-2-->L14: Formula: (< |v_ULTIMATE.start_main_~x~0#1_6| |v_ULTIMATE.start_main_~y~0#1_5|) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_6|, 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_6|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_5|} AuxVars[] AssignedVars[] 3#L14true [36] L14-->L14-2: Formula: (and (= (+ |v_ULTIMATE.start_main_~z~0#1_2| 1) |v_ULTIMATE.start_main_~z~0#1_1|) (>= |v_ULTIMATE.start_main_~x~0#1_1| |v_ULTIMATE.start_main_~z~0#1_2|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_1|, ULTIMATE.start_main_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_2|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_1|, ULTIMATE.start_main_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_~z~0#1] 4#L14-2true [2023-02-13 03:40:41,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:41,273 INFO L85 PathProgramCache]: Analyzing trace with hash 68, now seen corresponding path program 1 times [2023-02-13 03:40:41,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:41,279 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347807671] [2023-02-13 03:40:41,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:41,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:41,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:41,324 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:41,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:41,334 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:41,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:41,336 INFO L85 PathProgramCache]: Analyzing trace with hash 2020, now seen corresponding path program 1 times [2023-02-13 03:40:41,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:41,336 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762855529] [2023-02-13 03:40:41,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:41,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:41,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:41,343 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:41,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:41,346 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:41,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:41,347 INFO L85 PathProgramCache]: Analyzing trace with hash 66407, now seen corresponding path program 1 times [2023-02-13 03:40:41,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:41,347 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45901007] [2023-02-13 03:40:41,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:41,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:41,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:41,351 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:41,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:41,355 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:41,388 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:41,389 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:41,389 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:41,389 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:41,389 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-13 03:40:41,389 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:41,389 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:41,389 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:41,389 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2023-02-13 03:40:41,389 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:41,389 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:41,398 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 03:40:41,405 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 03:40:41,407 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 03:40:41,438 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:41,438 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-13 03:40:41,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:41,440 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:41,445 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 03:40:41,462 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:41,463 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:41,468 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 03:40:41,479 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:41,479 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 03:40:41,497 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 03:40:41,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:41,498 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:41,499 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 03:40:41,500 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 03:40:41,500 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:41,500 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:41,510 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:41,510 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 03:40:41,530 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 03:40:41,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:41,531 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:41,532 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 03:40:41,533 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 03:40:41,533 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:41,534 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:41,562 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2023-02-13 03:40:41,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:41,563 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:41,563 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 03:40:41,565 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 03:40:41,565 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-13 03:40:41,566 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:41,732 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-13 03:40:41,736 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-02-13 03:40:41,736 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:41,737 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:41,737 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:41,737 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:41,738 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-13 03:40:41,738 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:41,738 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:41,739 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:41,739 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2023-02-13 03:40:41,739 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:41,739 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:41,743 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 03:40:41,763 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 03:40:41,768 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 03:40:41,803 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:41,808 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-13 03:40:41,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:41,809 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:41,811 INFO L229 MonitoredProcess]: Starting monitored process 6 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 03:40:41,812 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-02-13 03:40:41,813 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 03:40:41,818 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:41,818 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:40:41,820 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:41,820 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:41,820 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:41,825 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:40:41,826 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:40:41,829 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-13 03:40:41,833 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-13 03:40:41,833 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-13 03:40:41,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:41,835 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:41,836 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 03:40:41,838 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 03:40:41,838 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-13 03:40:41,838 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-13 03:40:41,839 INFO L513 LassoAnalysis]: Proved termination. [2023-02-13 03:40:41,839 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~z~0#1) = 2*ULTIMATE.start_main_~x~0#1 - 2*ULTIMATE.start_main_~z~0#1 + 1 Supporting invariants [] [2023-02-13 03:40:41,853 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2023-02-13 03:40:41,856 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-13 03:40:41,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:41,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:41,902 WARN L261 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-13 03:40:41,903 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:41,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:41,918 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-13 03:40:41,919 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:41,922 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 03:40:41,928 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2023-02-13 03:40:41,942 INFO L100 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization [2023-02-13 03:40:41,945 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 03:40:41,946 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First 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) Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 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 03:40:41,961 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First 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). Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 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 7 states and 10 transitions. Complement of second has 4 states. [2023-02-13 03:40:41,963 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 03:40:41,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 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 03:40:41,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2023-02-13 03:40:41,967 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 1 letters. Loop has 2 letters. [2023-02-13 03:40:41,968 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:41,968 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 3 letters. Loop has 2 letters. [2023-02-13 03:40:41,968 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:41,968 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 1 letters. Loop has 4 letters. [2023-02-13 03:40:41,968 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:41,972 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7 states and 10 transitions. [2023-02-13 03:40:41,972 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-13 03:40:41,974 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7 states to 7 states and 10 transitions. [2023-02-13 03:40:41,974 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2023-02-13 03:40:41,974 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2023-02-13 03:40:41,975 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2023-02-13 03:40:41,975 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-13 03:40:41,975 INFO L220 hiAutomatonCegarLoop]: Abstraction has 7 states and 10 transitions. [2023-02-13 03:40:41,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2023-02-13 03:40:41,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2023-02-13 03:40:41,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 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 03:40:41,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2023-02-13 03:40:41,988 INFO L242 hiAutomatonCegarLoop]: Abstraction has 7 states and 10 transitions. [2023-02-13 03:40:41,988 INFO L426 stractBuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2023-02-13 03:40:41,988 INFO L333 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-02-13 03:40:41,988 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2023-02-13 03:40:41,988 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-13 03:40:41,989 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:40:41,989 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:40:41,989 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-02-13 03:40:41,989 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-13 03:40:41,989 INFO L733 eck$LassoCheckResult]: Stem: 40#ULTIMATE.startENTRY [37] ULTIMATE.startENTRY-->L14-2: Formula: true InVars {} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_9|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_6|, 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_3|, ULTIMATE.start_main_#t~nondet2#1=|v_ULTIMATE.start_main_#t~nondet2#1_3|, ULTIMATE.start_main_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_7|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|} 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_~z~0#1, ULTIMATE.start_main_#t~nondet0#1] 41#L14-2 [33] L14-2-->L14: Formula: (< |v_ULTIMATE.start_main_~x~0#1_6| |v_ULTIMATE.start_main_~y~0#1_5|) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_6|, 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_6|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_5|} AuxVars[] AssignedVars[] 42#L14 [29] L14-->L14-2: Formula: (and (< |v_ULTIMATE.start_main_~x~0#1_8| |v_ULTIMATE.start_main_~z~0#1_6|) (= (+ |v_ULTIMATE.start_main_~x~0#1_8| 1) |v_ULTIMATE.start_main_~x~0#1_7|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_8|, ULTIMATE.start_main_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_6|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_7|, ULTIMATE.start_main_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_6|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1] 43#L14-2 [2023-02-13 03:40:41,989 INFO L735 eck$LassoCheckResult]: Loop: 43#L14-2 [33] L14-2-->L14: Formula: (< |v_ULTIMATE.start_main_~x~0#1_6| |v_ULTIMATE.start_main_~y~0#1_5|) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_6|, 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_6|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_5|} AuxVars[] AssignedVars[] 46#L14 [36] L14-->L14-2: Formula: (and (= (+ |v_ULTIMATE.start_main_~z~0#1_2| 1) |v_ULTIMATE.start_main_~z~0#1_1|) (>= |v_ULTIMATE.start_main_~x~0#1_1| |v_ULTIMATE.start_main_~z~0#1_2|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_1|, ULTIMATE.start_main_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_2|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_1|, ULTIMATE.start_main_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_~z~0#1] 43#L14-2 [2023-02-13 03:40:41,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:41,990 INFO L85 PathProgramCache]: Analyzing trace with hash 66400, now seen corresponding path program 1 times [2023-02-13 03:40:41,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:41,990 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120485304] [2023-02-13 03:40:41,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:41,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:41,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:41,993 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:41,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:41,995 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:41,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:41,996 INFO L85 PathProgramCache]: Analyzing trace with hash 2020, now seen corresponding path program 2 times [2023-02-13 03:40:41,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:41,996 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641231770] [2023-02-13 03:40:41,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:41,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:41,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:41,999 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:42,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:42,001 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:42,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:42,001 INFO L85 PathProgramCache]: Analyzing trace with hash 63811459, now seen corresponding path program 1 times [2023-02-13 03:40:42,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:42,001 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454488260] [2023-02-13 03:40:42,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:42,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:42,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:42,005 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:42,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:42,008 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:42,018 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:42,018 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:42,018 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:42,018 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:42,018 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-13 03:40:42,018 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:42,018 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:42,018 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:42,018 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2023-02-13 03:40:42,018 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:42,018 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:42,019 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 03:40:42,021 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 03:40:42,023 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 03:40:42,042 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:42,042 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-13 03:40:42,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:42,042 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:42,043 INFO L229 MonitoredProcess]: Starting monitored process 8 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 03:40:42,044 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-02-13 03:40:42,045 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:42,045 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:42,053 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:42,053 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 03:40:42,069 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-02-13 03:40:42,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:42,070 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:42,070 INFO L229 MonitoredProcess]: Starting monitored process 9 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 03:40:42,071 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-02-13 03:40:42,072 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:42,072 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:42,080 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:42,080 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 03:40:42,095 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2023-02-13 03:40:42,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:42,096 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:42,097 INFO L229 MonitoredProcess]: Starting monitored process 10 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 03:40:42,098 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-02-13 03:40:42,099 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:42,099 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:42,124 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2023-02-13 03:40:42,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:42,126 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:42,127 INFO L229 MonitoredProcess]: Starting monitored process 11 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 03:40:42,128 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-02-13 03:40:42,129 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-13 03:40:42,129 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:42,288 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-13 03:40:42,290 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-02-13 03:40:42,290 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:42,291 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:42,291 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:42,291 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:42,292 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-13 03:40:42,292 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:42,292 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:42,293 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:42,293 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2023-02-13 03:40:42,293 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:42,293 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:42,296 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 03:40:42,300 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 03:40:42,304 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 03:40:42,362 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:42,363 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-13 03:40:42,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:42,363 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:42,365 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 03:40:42,366 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 03:40:42,368 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 03:40:42,376 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:42,376 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:42,377 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:42,377 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:42,383 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:40:42,383 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:40:42,390 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:40:42,426 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 03:40:42,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:42,427 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:42,428 INFO L229 MonitoredProcess]: Starting monitored process 13 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 03:40:42,430 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-02-13 03:40:42,431 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 03:40:42,436 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:42,436 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:42,436 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:42,437 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:42,439 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:40:42,439 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:40:42,443 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:40:42,489 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2023-02-13 03:40:42,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:42,490 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:42,491 INFO L229 MonitoredProcess]: Starting monitored process 14 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 03:40:42,492 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-02-13 03:40:42,493 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 03:40:42,500 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:42,501 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:40:42,501 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:42,501 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:42,501 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:42,503 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:40:42,503 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:40:42,509 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-13 03:40:42,515 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-13 03:40:42,516 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-13 03:40:42,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:42,517 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:42,518 INFO L229 MonitoredProcess]: Starting monitored process 15 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 03:40:42,522 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-02-13 03:40:42,522 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-13 03:40:42,523 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-13 03:40:42,523 INFO L513 LassoAnalysis]: Proved termination. [2023-02-13 03:40:42,523 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~z~0#1) = 2*ULTIMATE.start_main_~x~0#1 - 2*ULTIMATE.start_main_~z~0#1 + 1 Supporting invariants [] [2023-02-13 03:40:42,560 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2023-02-13 03:40:42,563 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-13 03:40:42,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:42,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:42,589 INFO L263 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-13 03:40:42,590 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:42,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:42,600 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-13 03:40:42,601 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:42,606 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 03:40:42,607 INFO L100 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization [2023-02-13 03:40:42,608 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 03:40:42,608 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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 03:40:42,620 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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 9 states and 13 transitions. Complement of second has 4 states. [2023-02-13 03:40:42,621 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 03:40:42,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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 03:40:42,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2023-02-13 03:40:42,623 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 3 letters. Loop has 2 letters. [2023-02-13 03:40:42,623 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:42,623 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 2 letters. [2023-02-13 03:40:42,623 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:42,624 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 3 letters. Loop has 4 letters. [2023-02-13 03:40:42,624 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:42,625 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 13 transitions. [2023-02-13 03:40:42,626 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-13 03:40:42,626 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 9 states and 13 transitions. [2023-02-13 03:40:42,626 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2023-02-13 03:40:42,627 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2023-02-13 03:40:42,627 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 13 transitions. [2023-02-13 03:40:42,627 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-13 03:40:42,627 INFO L220 hiAutomatonCegarLoop]: Abstraction has 9 states and 13 transitions. [2023-02-13 03:40:42,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 13 transitions. [2023-02-13 03:40:42,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 5. [2023-02-13 03:40:42,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 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 03:40:42,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 7 transitions. [2023-02-13 03:40:42,629 INFO L242 hiAutomatonCegarLoop]: Abstraction has 5 states and 7 transitions. [2023-02-13 03:40:42,629 INFO L426 stractBuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2023-02-13 03:40:42,629 INFO L333 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-02-13 03:40:42,629 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 7 transitions. [2023-02-13 03:40:42,629 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-13 03:40:42,629 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:40:42,630 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:40:42,630 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2023-02-13 03:40:42,630 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-13 03:40:42,630 INFO L733 eck$LassoCheckResult]: Stem: 89#ULTIMATE.startENTRY [37] ULTIMATE.startENTRY-->L14-2: Formula: true InVars {} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_9|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_6|, 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_3|, ULTIMATE.start_main_#t~nondet2#1=|v_ULTIMATE.start_main_#t~nondet2#1_3|, ULTIMATE.start_main_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_7|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|} 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_~z~0#1, ULTIMATE.start_main_#t~nondet0#1] 90#L14-2 [2023-02-13 03:40:42,630 INFO L735 eck$LassoCheckResult]: Loop: 90#L14-2 [33] L14-2-->L14: Formula: (< |v_ULTIMATE.start_main_~x~0#1_6| |v_ULTIMATE.start_main_~y~0#1_5|) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_6|, 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_6|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_5|} AuxVars[] AssignedVars[] 91#L14 [29] L14-->L14-2: Formula: (and (< |v_ULTIMATE.start_main_~x~0#1_8| |v_ULTIMATE.start_main_~z~0#1_6|) (= (+ |v_ULTIMATE.start_main_~x~0#1_8| 1) |v_ULTIMATE.start_main_~x~0#1_7|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_8|, ULTIMATE.start_main_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_6|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_7|, ULTIMATE.start_main_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_6|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1] 90#L14-2 [2023-02-13 03:40:42,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:42,631 INFO L85 PathProgramCache]: Analyzing trace with hash 68, now seen corresponding path program 2 times [2023-02-13 03:40:42,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:42,631 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723904173] [2023-02-13 03:40:42,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:42,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:42,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:42,635 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:42,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:42,637 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:42,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:42,638 INFO L85 PathProgramCache]: Analyzing trace with hash 2013, now seen corresponding path program 1 times [2023-02-13 03:40:42,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:42,638 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018603586] [2023-02-13 03:40:42,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:42,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:42,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:42,641 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:42,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:42,644 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:42,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:42,644 INFO L85 PathProgramCache]: Analyzing trace with hash 66400, now seen corresponding path program 2 times [2023-02-13 03:40:42,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:42,644 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535926009] [2023-02-13 03:40:42,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:42,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:42,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:42,648 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:42,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:42,650 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:42,664 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:42,665 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:42,665 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:42,665 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:42,665 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-13 03:40:42,665 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:42,665 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:42,665 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:42,665 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2023-02-13 03:40:42,665 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:42,665 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:42,666 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 03:40:42,673 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 03:40:42,676 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 03:40:42,715 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:42,716 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-13 03:40:42,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:42,717 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:42,718 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 03:40:42,720 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 03:40:42,722 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:42,722 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:42,774 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 03:40:42,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:42,775 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:42,776 INFO L229 MonitoredProcess]: Starting monitored process 17 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 03:40:42,777 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-02-13 03:40:42,778 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-13 03:40:42,778 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:42,909 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-13 03:40:42,910 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2023-02-13 03:40:42,911 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:42,911 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:42,912 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:42,912 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:42,912 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-13 03:40:42,912 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:42,912 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:42,913 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:42,913 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2023-02-13 03:40:42,913 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:42,913 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:42,915 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 03:40:42,925 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 03:40:42,929 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 03:40:42,961 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:42,962 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-13 03:40:42,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:42,962 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:42,963 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 03:40:42,965 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 03:40:42,965 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 03:40:42,974 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:42,974 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:40:42,975 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:42,975 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:42,975 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:42,976 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:40:42,977 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:40:42,979 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-13 03:40:42,985 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-13 03:40:42,985 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-13 03:40:42,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:42,989 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:42,990 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 03:40:42,992 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 03:40:42,993 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-13 03:40:42,993 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-13 03:40:42,993 INFO L513 LassoAnalysis]: Proved termination. [2023-02-13 03:40:42,994 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0#1, ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~z~0#1 - 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2023-02-13 03:40:43,031 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 03:40:43,032 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-13 03:40:43,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:43,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:43,049 WARN L261 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-13 03:40:43,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:43,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:43,055 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-13 03:40:43,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:43,060 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 03:40:43,061 INFO L100 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization [2023-02-13 03:40:43,061 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 03:40:43,061 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 5 states and 7 transitions. cyclomatic complexity: 3 Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 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 03:40:43,078 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 5 states and 7 transitions. cyclomatic complexity: 3. Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 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 11 states and 17 transitions. Complement of second has 4 states. [2023-02-13 03:40:43,078 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 03:40:43,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 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 03:40:43,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2023-02-13 03:40:43,080 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 1 letters. Loop has 2 letters. [2023-02-13 03:40:43,080 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:43,080 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 3 letters. Loop has 2 letters. [2023-02-13 03:40:43,080 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:43,080 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 1 letters. Loop has 4 letters. [2023-02-13 03:40:43,080 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:43,081 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 17 transitions. [2023-02-13 03:40:43,082 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-13 03:40:43,082 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 9 states and 13 transitions. [2023-02-13 03:40:43,082 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2023-02-13 03:40:43,083 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2023-02-13 03:40:43,083 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 13 transitions. [2023-02-13 03:40:43,083 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-13 03:40:43,083 INFO L220 hiAutomatonCegarLoop]: Abstraction has 9 states and 13 transitions. [2023-02-13 03:40:43,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 13 transitions. [2023-02-13 03:40:43,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2023-02-13 03:40:43,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.5) internal successors, (12), 7 states have internal predecessors, (12), 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 03:40:43,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 12 transitions. [2023-02-13 03:40:43,084 INFO L242 hiAutomatonCegarLoop]: Abstraction has 8 states and 12 transitions. [2023-02-13 03:40:43,084 INFO L426 stractBuchiCegarLoop]: Abstraction has 8 states and 12 transitions. [2023-02-13 03:40:43,084 INFO L333 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-02-13 03:40:43,085 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 12 transitions. [2023-02-13 03:40:43,085 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-13 03:40:43,085 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:40:43,085 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:40:43,087 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1] [2023-02-13 03:40:43,087 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-13 03:40:43,087 INFO L733 eck$LassoCheckResult]: Stem: 132#ULTIMATE.startENTRY [37] ULTIMATE.startENTRY-->L14-2: Formula: true InVars {} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_9|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_6|, 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_3|, ULTIMATE.start_main_#t~nondet2#1=|v_ULTIMATE.start_main_#t~nondet2#1_3|, ULTIMATE.start_main_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_7|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|} 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_~z~0#1, ULTIMATE.start_main_#t~nondet0#1] 133#L14-2 [33] L14-2-->L14: Formula: (< |v_ULTIMATE.start_main_~x~0#1_6| |v_ULTIMATE.start_main_~y~0#1_5|) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_6|, 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_6|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_5|} AuxVars[] AssignedVars[] 138#L14 [36] L14-->L14-2: Formula: (and (= (+ |v_ULTIMATE.start_main_~z~0#1_2| 1) |v_ULTIMATE.start_main_~z~0#1_1|) (>= |v_ULTIMATE.start_main_~x~0#1_1| |v_ULTIMATE.start_main_~z~0#1_2|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_1|, ULTIMATE.start_main_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_2|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_1|, ULTIMATE.start_main_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_~z~0#1] 139#L14-2 [33] L14-2-->L14: Formula: (< |v_ULTIMATE.start_main_~x~0#1_6| |v_ULTIMATE.start_main_~y~0#1_5|) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_6|, 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_6|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_5|} AuxVars[] AssignedVars[] 134#L14 [2023-02-13 03:40:43,087 INFO L735 eck$LassoCheckResult]: Loop: 134#L14 [29] L14-->L14-2: Formula: (and (< |v_ULTIMATE.start_main_~x~0#1_8| |v_ULTIMATE.start_main_~z~0#1_6|) (= (+ |v_ULTIMATE.start_main_~x~0#1_8| 1) |v_ULTIMATE.start_main_~x~0#1_7|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_8|, ULTIMATE.start_main_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_6|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_7|, ULTIMATE.start_main_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_6|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1] 135#L14-2 [33] L14-2-->L14: Formula: (< |v_ULTIMATE.start_main_~x~0#1_6| |v_ULTIMATE.start_main_~y~0#1_5|) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_6|, 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_6|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_5|} AuxVars[] AssignedVars[] 134#L14 [2023-02-13 03:40:43,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:43,088 INFO L85 PathProgramCache]: Analyzing trace with hash 2058650, now seen corresponding path program 2 times [2023-02-13 03:40:43,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:43,088 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623937816] [2023-02-13 03:40:43,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:43,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:43,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:43,092 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:43,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:43,094 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:43,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:43,095 INFO L85 PathProgramCache]: Analyzing trace with hash 1893, now seen corresponding path program 2 times [2023-02-13 03:40:43,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:43,095 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491827497] [2023-02-13 03:40:43,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:43,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:43,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:43,098 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:43,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:43,099 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:43,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:43,100 INFO L85 PathProgramCache]: Analyzing trace with hash 1978363582, now seen corresponding path program 2 times [2023-02-13 03:40:43,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:43,100 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691507715] [2023-02-13 03:40:43,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:43,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:43,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:43,103 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:43,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:43,106 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:43,116 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:43,116 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:43,116 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:43,116 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:43,116 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-13 03:40:43,116 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:43,117 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:43,117 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:43,117 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2023-02-13 03:40:43,117 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:43,117 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:43,117 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 03:40:43,119 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 03:40:43,120 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 03:40:43,141 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:43,141 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-13 03:40:43,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:43,142 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:43,143 INFO L229 MonitoredProcess]: Starting monitored process 20 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 03:40:43,147 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-02-13 03:40:43,150 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:43,150 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:43,163 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:43,163 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 03:40:43,199 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2023-02-13 03:40:43,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:43,200 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:43,201 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 03:40:43,203 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 03:40:43,203 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:43,203 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:43,213 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:43,213 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 03:40:43,233 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 03:40:43,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:43,234 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:43,235 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 03:40:43,238 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 03:40:43,238 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:43,239 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:43,282 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 03:40:43,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:43,282 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:43,284 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 03:40:43,285 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 03:40:43,287 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-13 03:40:43,287 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:43,469 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-13 03:40:43,473 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 03:40:43,474 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:43,474 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:43,474 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:43,474 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:43,474 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-13 03:40:43,474 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:43,474 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:43,474 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:43,474 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2023-02-13 03:40:43,474 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:43,474 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:43,475 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 03:40:43,479 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 03:40:43,482 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 03:40:43,526 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:43,526 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-13 03:40:43,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:43,526 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:43,528 INFO L229 MonitoredProcess]: Starting monitored process 24 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 03:40:43,529 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2023-02-13 03:40:43,530 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 03:40:43,537 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:43,538 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:43,538 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:43,538 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:43,542 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:40:43,542 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:40:43,549 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:40:43,580 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2023-02-13 03:40:43,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:43,581 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:43,582 INFO L229 MonitoredProcess]: Starting monitored process 25 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 03:40:43,583 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2023-02-13 03:40:43,586 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 03:40:43,595 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:43,595 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:43,595 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:43,595 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:43,598 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:40:43,599 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:40:43,603 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:40:43,642 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2023-02-13 03:40:43,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:43,643 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:43,643 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 03:40:43,645 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 03:40:43,645 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 03:40:43,654 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:43,655 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:40:43,655 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:43,655 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:43,655 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:43,656 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:40:43,656 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:40:43,661 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-13 03:40:43,665 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-13 03:40:43,665 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-13 03:40:43,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:43,666 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:43,667 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 03:40:43,670 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 03:40:43,672 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-13 03:40:43,672 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-13 03:40:43,672 INFO L513 LassoAnalysis]: Proved termination. [2023-02-13 03:40:43,672 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0#1, ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~z~0#1 - 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2023-02-13 03:40:43,707 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 03:40:43,709 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-13 03:40:43,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:43,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:43,733 INFO L263 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-13 03:40:43,733 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:43,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:43,744 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-13 03:40:43,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:43,794 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 03:40:43,804 INFO L100 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2023-02-13 03:40:43,805 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 03:40:43,805 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 8 states and 12 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 03:40:43,825 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 8 states and 12 transitions. cyclomatic complexity: 6. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 16 states and 20 transitions. Complement of second has 4 states. [2023-02-13 03:40:43,826 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 03:40:43,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 03:40:43,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2023-02-13 03:40:43,828 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 4 letters. Loop has 2 letters. [2023-02-13 03:40:43,828 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:43,828 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 6 letters. Loop has 2 letters. [2023-02-13 03:40:43,829 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:43,829 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 4 letters. Loop has 4 letters. [2023-02-13 03:40:43,830 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:43,831 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 20 transitions. [2023-02-13 03:40:43,832 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2023-02-13 03:40:43,833 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 12 states and 16 transitions. [2023-02-13 03:40:43,833 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2023-02-13 03:40:43,834 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3 [2023-02-13 03:40:43,834 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 16 transitions. [2023-02-13 03:40:43,834 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-13 03:40:43,834 INFO L220 hiAutomatonCegarLoop]: Abstraction has 12 states and 16 transitions. [2023-02-13 03:40:43,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 16 transitions. [2023-02-13 03:40:43,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 7. [2023-02-13 03:40:43,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 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 03:40:43,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2023-02-13 03:40:43,836 INFO L242 hiAutomatonCegarLoop]: Abstraction has 7 states and 10 transitions. [2023-02-13 03:40:43,836 INFO L426 stractBuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2023-02-13 03:40:43,837 INFO L333 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-02-13 03:40:43,837 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2023-02-13 03:40:43,837 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-02-13 03:40:43,837 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:40:43,838 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:40:43,838 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1] [2023-02-13 03:40:43,838 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1] [2023-02-13 03:40:43,839 INFO L733 eck$LassoCheckResult]: Stem: 195#ULTIMATE.startENTRY [37] ULTIMATE.startENTRY-->L14-2: Formula: true InVars {} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_9|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_6|, 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_3|, ULTIMATE.start_main_#t~nondet2#1=|v_ULTIMATE.start_main_#t~nondet2#1_3|, ULTIMATE.start_main_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_7|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|} 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_~z~0#1, ULTIMATE.start_main_#t~nondet0#1] 196#L14-2 [33] L14-2-->L14: Formula: (< |v_ULTIMATE.start_main_~x~0#1_6| |v_ULTIMATE.start_main_~y~0#1_5|) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_6|, 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_6|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_5|} AuxVars[] AssignedVars[] 200#L14 [36] L14-->L14-2: Formula: (and (= (+ |v_ULTIMATE.start_main_~z~0#1_2| 1) |v_ULTIMATE.start_main_~z~0#1_1|) (>= |v_ULTIMATE.start_main_~x~0#1_1| |v_ULTIMATE.start_main_~z~0#1_2|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_1|, ULTIMATE.start_main_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_2|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_1|, ULTIMATE.start_main_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_~z~0#1] 201#L14-2 [33] L14-2-->L14: Formula: (< |v_ULTIMATE.start_main_~x~0#1_6| |v_ULTIMATE.start_main_~y~0#1_5|) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_6|, 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_6|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_5|} AuxVars[] AssignedVars[] 197#L14 [2023-02-13 03:40:43,839 INFO L735 eck$LassoCheckResult]: Loop: 197#L14 [29] L14-->L14-2: Formula: (and (< |v_ULTIMATE.start_main_~x~0#1_8| |v_ULTIMATE.start_main_~z~0#1_6|) (= (+ |v_ULTIMATE.start_main_~x~0#1_8| 1) |v_ULTIMATE.start_main_~x~0#1_7|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_8|, ULTIMATE.start_main_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_6|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_7|, ULTIMATE.start_main_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_6|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1] 198#L14-2 [33] L14-2-->L14: Formula: (< |v_ULTIMATE.start_main_~x~0#1_6| |v_ULTIMATE.start_main_~y~0#1_5|) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_6|, 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_6|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_5|} AuxVars[] AssignedVars[] 200#L14 [36] L14-->L14-2: Formula: (and (= (+ |v_ULTIMATE.start_main_~z~0#1_2| 1) |v_ULTIMATE.start_main_~z~0#1_1|) (>= |v_ULTIMATE.start_main_~x~0#1_1| |v_ULTIMATE.start_main_~z~0#1_2|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_1|, ULTIMATE.start_main_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_2|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_1|, ULTIMATE.start_main_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_~z~0#1] 201#L14-2 [33] L14-2-->L14: Formula: (< |v_ULTIMATE.start_main_~x~0#1_6| |v_ULTIMATE.start_main_~y~0#1_5|) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_6|, 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_6|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_5|} AuxVars[] AssignedVars[] 197#L14 [2023-02-13 03:40:43,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:43,839 INFO L85 PathProgramCache]: Analyzing trace with hash 2058650, now seen corresponding path program 3 times [2023-02-13 03:40:43,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:43,840 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435277441] [2023-02-13 03:40:43,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:43,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:43,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:43,845 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:43,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:43,849 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:43,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:43,849 INFO L85 PathProgramCache]: Analyzing trace with hash 1820322, now seen corresponding path program 1 times [2023-02-13 03:40:43,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:43,849 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750166768] [2023-02-13 03:40:43,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:43,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:43,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:43,853 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:43,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:43,856 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:43,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:43,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1463108677, now seen corresponding path program 3 times [2023-02-13 03:40:43,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:43,857 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854167454] [2023-02-13 03:40:43,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:43,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:43,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:43,861 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:43,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:43,864 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:43,895 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:43,895 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:43,895 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:43,895 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:43,895 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-13 03:40:43,895 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:43,895 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:43,895 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:43,896 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration5_Loop [2023-02-13 03:40:43,896 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:43,896 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:43,897 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 03:40:43,899 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 03:40:43,901 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 03:40:43,935 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2023-02-13 03:40:43,954 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:43,955 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-13 03:40:43,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:43,955 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:43,957 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 03:40:43,957 INFO L229 MonitoredProcess]: Starting monitored process 28 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 03:40:43,959 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2023-02-13 03:40:43,959 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:43,959 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:43,967 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:43,967 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_9=1} Honda state: {v_rep~unnamed0~0~true_9=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:43,971 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 03:40:43,981 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2023-02-13 03:40:43,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:43,981 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:43,982 INFO L229 MonitoredProcess]: Starting monitored process 29 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 03:40:43,983 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2023-02-13 03:40:43,984 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:43,984 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:43,992 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:43,992 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_9=0} Honda state: {v_rep~unnamed0~0~false_9=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:44,006 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2023-02-13 03:40:44,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:44,007 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:44,007 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 03:40:44,009 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 03:40:44,009 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:44,009 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:44,049 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 03:40:44,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:44,050 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:44,050 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 03:40:44,052 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 03:40:44,053 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-13 03:40:44,053 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:44,350 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-13 03:40:44,352 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2023-02-13 03:40:44,352 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:44,352 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:44,352 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:44,352 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:44,353 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-13 03:40:44,353 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:44,353 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:44,353 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:44,353 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration5_Loop [2023-02-13 03:40:44,353 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:44,353 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:44,353 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 03:40:44,356 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 03:40:44,359 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 03:40:44,424 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:44,425 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-13 03:40:44,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:44,425 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:44,427 INFO L229 MonitoredProcess]: Starting monitored process 32 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 03:40:44,429 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2023-02-13 03:40:44,430 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 03:40:44,439 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:44,439 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:44,440 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:44,440 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:44,443 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:40:44,444 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:40:44,450 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:40:44,497 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2023-02-13 03:40:44,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:44,498 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:44,499 INFO L229 MonitoredProcess]: Starting monitored process 33 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 03:40:44,501 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2023-02-13 03:40:44,501 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 03:40:44,510 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:44,511 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:44,511 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:44,511 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:44,514 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:40:44,515 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:40:44,521 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:40:44,567 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2023-02-13 03:40:44,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:44,568 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:44,569 INFO L229 MonitoredProcess]: Starting monitored process 34 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 03:40:44,572 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2023-02-13 03:40:44,572 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 03:40:44,579 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:44,579 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:40:44,580 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:44,580 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:44,580 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:44,582 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:40:44,583 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:40:44,588 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-13 03:40:44,596 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-02-13 03:40:44,596 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-13 03:40:44,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:44,596 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:44,597 INFO L229 MonitoredProcess]: Starting monitored process 35 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 03:40:44,599 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-13 03:40:44,599 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2023-02-13 03:40:44,599 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-13 03:40:44,600 INFO L513 LassoAnalysis]: Proved termination. [2023-02-13 03:40:44,600 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~y~0#1 - 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2023-02-13 03:40:44,638 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2023-02-13 03:40:44,640 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-13 03:40:44,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:44,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:44,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-13 03:40:44,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:44,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:44,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-13 03:40:44,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:44,715 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 03:40:44,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:44,729 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-13 03:40:44,730 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:44,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:44,748 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-13 03:40:44,749 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:44,765 INFO L100 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2023-02-13 03:40:44,766 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 03:40:44,766 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 7 states and 10 transitions. cyclomatic complexity: 4 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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 03:40:44,817 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 7 states and 10 transitions. cyclomatic complexity: 4. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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 21 states and 29 transitions. Complement of second has 8 states. [2023-02-13 03:40:44,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 2 accepting loop states [2023-02-13 03:40:44,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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 03:40:44,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2023-02-13 03:40:44,820 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 4 letters. Loop has 4 letters. [2023-02-13 03:40:44,820 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:44,821 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 8 letters. Loop has 4 letters. [2023-02-13 03:40:44,821 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:44,821 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 4 letters. Loop has 8 letters. [2023-02-13 03:40:44,822 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:44,824 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 29 transitions. [2023-02-13 03:40:44,825 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-13 03:40:44,825 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 0 states and 0 transitions. [2023-02-13 03:40:44,826 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-02-13 03:40:44,826 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-02-13 03:40:44,826 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-02-13 03:40:44,826 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-13 03:40:44,826 INFO L220 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-13 03:40:44,827 INFO L242 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-13 03:40:44,827 INFO L426 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-13 03:40:44,827 INFO L333 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2023-02-13 03:40:44,827 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-02-13 03:40:44,827 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-13 03:40:44,827 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-02-13 03:40:44,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.02 03:40:44 BasicIcfg [2023-02-13 03:40:44,837 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-02-13 03:40:44,838 INFO L158 Benchmark]: Toolchain (without parser) took 4046.81ms. 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 2.5GB in the end (delta: -399.7MB). Peak memory consumption was 36.5MB. Max. memory is 42.9GB. [2023-02-13 03:40:44,838 INFO L158 Benchmark]: CDTParser took 0.10ms. 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 03:40:44,839 INFO L158 Benchmark]: CACSL2BoogieTranslator took 146.04ms. 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 03:40:44,839 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.43ms. 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 03:40:44,839 INFO L158 Benchmark]: Boogie Preprocessor took 10.92ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 1.1MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. [2023-02-13 03:40:44,840 INFO L158 Benchmark]: RCFGBuilder took 183.15ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. [2023-02-13 03:40:44,840 INFO L158 Benchmark]: BlockEncodingV2 took 33.87ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 4.1MB). There was no memory consumed. Max. memory is 42.9GB. [2023-02-13 03:40:44,840 INFO L158 Benchmark]: TraceAbstraction took 14.10ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. [2023-02-13 03:40:44,841 INFO L158 Benchmark]: BuchiAutomizer took 3619.10ms. 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 2.5GB in the end (delta: -429.8MB). Peak memory consumption was 3.0MB. Max. memory is 42.9GB. [2023-02-13 03:40:44,842 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 8 locations, 10 edges - StatisticsResult: Encoded RCFG 3 locations, 4 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 2.1GB. Free memory is still 2.1GB. There was no memory consumed. Max. memory is 42.9GB. * CACSL2BoogieTranslator took 146.04ms. 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. * Boogie Procedure Inliner took 33.43ms. 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 10.92ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 1.1MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. * RCFGBuilder took 183.15ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. * BlockEncodingV2 took 33.87ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 4.1MB). There was no memory consumed. Max. memory is 42.9GB. * TraceAbstraction took 14.10ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. * BuchiAutomizer took 3619.10ms. 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 2.5GB in the end (delta: -429.8MB). Peak memory consumption was 3.0MB. 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 5 terminating modules (0 trivial, 0 deterministic, 5 nondeterministic). One nondeterministic module has affine ranking function 2 * x + -2 * z + 1 and consists of 3 locations. One nondeterministic module has affine ranking function 2 * x + -2 * z + 1 and consists of 3 locations. One nondeterministic module has affine ranking function z + -1 * x and consists of 3 locations. One nondeterministic module has affine ranking function z + -1 * x and consists of 3 locations. One nondeterministic module has affine ranking function y + -1 * x and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.5s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 3.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 10 StatesRemovedByMinimization, 3 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 [5, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 2/2 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 31 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 27 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 49 IncrementalHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 10 mSDtfsCounter, 49 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT5 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital14 mio100 ax185 hnf100 lsp54 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq148 hnf94 smp96 dnf100 smp100 tf110 neg100 sie114 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 27ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 8 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.2s 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 03:40:44,885 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2023-02-13 03:40:45,089 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...