YES This is Ultimate 0.2.2-dev-e7f90c1-m [2023-02-13 03:41:45,754 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-13 03:41:45,755 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-13 03:41:45,770 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-13 03:41:45,770 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-13 03:41:45,771 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-13 03:41:45,771 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-13 03:41:45,772 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-13 03:41:45,773 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-13 03:41:45,773 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-13 03:41:45,774 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-13 03:41:45,775 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-13 03:41:45,775 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-13 03:41:45,775 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-13 03:41:45,776 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-13 03:41:45,776 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-13 03:41:45,777 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-13 03:41:45,777 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-13 03:41:45,778 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-13 03:41:45,779 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-13 03:41:45,780 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2023-02-13 03:41:45,780 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-13 03:41:45,781 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-13 03:41:45,781 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-13 03:41:45,782 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-13 03:41:45,783 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-13 03:41:45,783 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-13 03:41:45,783 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-13 03:41:45,784 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-13 03:41:45,784 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-13 03:41:45,784 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-13 03:41:45,785 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-13 03:41:45,785 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-13 03:41:45,785 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-13 03:41:45,786 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-13 03:41:45,786 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-13 03:41:45,786 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-13 03:41:45,787 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-13 03:41:45,787 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-13 03:41:45,787 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-13 03:41:45,787 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-13 03:41:45,788 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-13 03:41:45,788 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/Ultimate/./../termcomp2017.epf [2023-02-13 03:41:45,798 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-13 03:41:45,799 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-13 03:41:45,799 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-13 03:41:45,799 INFO L138 SettingsManager]: * Rewrite not-equals=true [2023-02-13 03:41:45,799 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-13 03:41:45,800 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2023-02-13 03:41:45,800 INFO L138 SettingsManager]: * Use SBE=true [2023-02-13 03:41:45,800 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-02-13 03:41:45,800 INFO L138 SettingsManager]: * Use old map elimination=false [2023-02-13 03:41:45,800 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2023-02-13 03:41:45,800 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2023-02-13 03:41:45,800 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2023-02-13 03:41:45,800 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-02-13 03:41:45,800 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2023-02-13 03:41:45,800 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:45,800 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-13 03:41:45,801 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-13 03:41:45,801 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-13 03:41:45,801 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-13 03:41:45,801 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-02-13 03:41:45,801 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2023-02-13 03:41:45,801 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-13 03:41:45,801 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-13 03:41:45,801 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2023-02-13 03:41:45,801 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2023-02-13 03:41:45,801 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-13 03:41:45,801 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-13 03:41:45,802 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-13 03:41:45,802 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-02-13 03:41:45,921 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-13 03:41:45,936 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-13 03:41:45,939 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-13 03:41:45,941 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-13 03:41:45,941 INFO L275 PluginConnector]: CDTParser initialized [2023-02-13 03:41:45,942 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2023-02-13 03:41:45,973 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/64b9f407e68c40dfbb7ea2819741a403/FLAG574b4dbf7 [2023-02-13 03:41:46,323 INFO L306 CDTParser]: Found 1 translation units. [2023-02-13 03:41:46,323 INFO L160 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2023-02-13 03:41:46,328 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/64b9f407e68c40dfbb7ea2819741a403/FLAG574b4dbf7 [2023-02-13 03:41:46,774 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/64b9f407e68c40dfbb7ea2819741a403 [2023-02-13 03:41:46,777 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-13 03:41:46,778 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2023-02-13 03:41:46,780 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-13 03:41:46,780 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-13 03:41:46,783 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-13 03:41:46,784 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.02 03:41:46" (1/1) ... [2023-02-13 03:41:46,785 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39350528 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:46, skipping insertion in model container [2023-02-13 03:41:46,785 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.02 03:41:46" (1/1) ... [2023-02-13 03:41:46,798 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-13 03:41:46,814 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-13 03:41:46,910 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-13 03:41:46,912 INFO L203 MainTranslator]: Completed pre-run [2023-02-13 03:41:46,919 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-13 03:41:46,926 INFO L208 MainTranslator]: Completed translation [2023-02-13 03:41:46,926 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:46 WrapperNode [2023-02-13 03:41:46,926 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-13 03:41:46,927 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-13 03:41:46,927 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-13 03:41:46,927 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-13 03:41:46,933 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:46" (1/1) ... [2023-02-13 03:41:46,937 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:46" (1/1) ... [2023-02-13 03:41:46,950 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 27 [2023-02-13 03:41:46,951 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-13 03:41:46,951 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-13 03:41:46,951 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-13 03:41:46,951 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-13 03:41:46,956 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:46" (1/1) ... [2023-02-13 03:41:46,957 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:46" (1/1) ... [2023-02-13 03:41:46,957 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:46" (1/1) ... [2023-02-13 03:41:46,957 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:46" (1/1) ... [2023-02-13 03:41:46,958 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:46" (1/1) ... [2023-02-13 03:41:46,960 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:46" (1/1) ... [2023-02-13 03:41:46,960 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:46" (1/1) ... [2023-02-13 03:41:46,961 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-13 03:41:46,961 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-13 03:41:46,961 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-13 03:41:46,961 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-13 03:41:46,962 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:46" (1/1) ... [2023-02-13 03:41:46,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2023-02-13 03:41:46,972 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:46,984 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 03:41:46,991 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 03:41:47,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-13 03:41:47,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-13 03:41:47,062 INFO L234 CfgBuilder]: Building ICFG [2023-02-13 03:41:47,063 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-13 03:41:47,120 INFO L275 CfgBuilder]: Performing block encoding [2023-02-13 03:41:47,125 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-13 03:41:47,125 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-13 03:41:47,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:41:47 BoogieIcfgContainer [2023-02-13 03:41:47,126 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-13 03:41:47,127 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2023-02-13 03:41:47,127 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2023-02-13 03:41:47,128 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2023-02-13 03:41:47,129 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:41:47" (1/1) ... [2023-02-13 03:41:47,140 INFO L313 BlockEncoder]: Initial Icfg 9 locations, 12 edges [2023-02-13 03:41:47,141 INFO L258 BlockEncoder]: Using Remove infeasible edges [2023-02-13 03:41:47,141 INFO L263 BlockEncoder]: Using Maximize final states [2023-02-13 03:41:47,142 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2023-02-13 03:41:47,142 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2023-02-13 03:41:47,142 INFO L296 BlockEncoder]: Using Remove sink states [2023-02-13 03:41:47,143 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2023-02-13 03:41:47,143 INFO L179 BlockEncoder]: Using Rewrite not-equals [2023-02-13 03:41:47,151 INFO L185 BlockEncoder]: Using Use SBE [2023-02-13 03:41:47,157 INFO L200 BlockEncoder]: SBE split 2 edges [2023-02-13 03:41:47,159 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2023-02-13 03:41:47,160 INFO L71 MaximizeFinalStates]: 0 new accepting states [2023-02-13 03:41:47,163 INFO L101 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2023-02-13 03:41:47,164 INFO L70 RemoveSinkStates]: Removed 3 edges and 2 locations by removing sink states [2023-02-13 03:41:47,165 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2023-02-13 03:41:47,165 INFO L71 MaximizeFinalStates]: 0 new accepting states [2023-02-13 03:41:47,165 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2023-02-13 03:41:47,165 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2023-02-13 03:41:47,165 INFO L313 BlockEncoder]: Encoded RCFG 4 locations, 7 edges [2023-02-13 03:41:47,166 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 13.02 03:41:47 BasicIcfg [2023-02-13 03:41:47,166 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2023-02-13 03:41:47,166 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-13 03:41:47,166 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-13 03:41:47,168 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-13 03:41:47,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.02 03:41:46" (1/4) ... [2023-02-13 03:41:47,169 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bb9b4ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.02 03:41:47, skipping insertion in model container [2023-02-13 03:41:47,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:46" (2/4) ... [2023-02-13 03:41:47,169 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bb9b4ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.02 03:41:47, skipping insertion in model container [2023-02-13 03:41:47,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:41:47" (3/4) ... [2023-02-13 03:41:47,169 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bb9b4ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.02 03:41:47, skipping insertion in model container [2023-02-13 03:41:47,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 13.02 03:41:47" (4/4) ... [2023-02-13 03:41:47,170 INFO L111 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2023-02-13 03:41:47,179 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2023-02-13 03:41:47,179 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 0 error locations. [2023-02-13 03:41:47,180 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bb9b4ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.02 03:41:47, skipping insertion in model container [2023-02-13 03:41:47,180 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-13 03:41:47,180 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-02-13 03:41:47,180 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2023-02-13 03:41:47,182 INFO L275 PluginConnector]: BuchiAutomizer initialized [2023-02-13 03:41:47,182 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:41:47,182 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.02 03:41:46" (1/4) ... [2023-02-13 03:41:47,183 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@265d7788 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.02 03:41:47, skipping insertion in model container [2023-02-13 03:41:47,183 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:41:47,183 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:46" (2/4) ... [2023-02-13 03:41:47,183 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@265d7788 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.02 03:41:47, skipping insertion in model container [2023-02-13 03:41:47,183 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:41:47,183 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:41:47" (3/4) ... [2023-02-13 03:41:47,183 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@265d7788 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.02 03:41:47, skipping insertion in model container [2023-02-13 03:41:47,183 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:41:47,184 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 13.02 03:41:47" (4/4) ... [2023-02-13 03:41:47,184 INFO L322 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2023-02-13 03:41:47,213 INFO L301 stractBuchiCegarLoop]: Interprodecural is true [2023-02-13 03:41:47,213 INFO L302 stractBuchiCegarLoop]: Hoare is true [2023-02-13 03:41:47,213 INFO L303 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-02-13 03:41:47,213 INFO L304 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-02-13 03:41:47,213 INFO L305 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-02-13 03:41:47,213 INFO L306 stractBuchiCegarLoop]: Difference is false [2023-02-13 03:41:47,213 INFO L307 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-02-13 03:41:47,213 INFO L311 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-02-13 03:41:47,216 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 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 03:41:47,225 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-02-13 03:41:47,225 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:41:47,225 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:41:47,229 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2023-02-13 03:41:47,229 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-02-13 03:41:47,229 INFO L333 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-02-13 03:41:47,229 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 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 03:41:47,229 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-02-13 03:41:47,230 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:41:47,230 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:41:47,230 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2023-02-13 03:41:47,230 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-02-13 03:41:47,233 INFO L733 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [50] ULTIMATE.startENTRY-->L27-1: Formula: true InVars {} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_12|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_12|, 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_6|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|, ULTIMATE.start_main_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_9|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_#t~nondet1#1, ULTIMATE.start_main_#t~nondet2#1, ULTIMATE.start_main_#t~nondet0#1, ULTIMATE.start_main_~z~0#1] 4#L27-1true [2023-02-13 03:41:47,233 INFO L735 eck$LassoCheckResult]: Loop: 4#L27-1true [38] L27-1-->L22: Formula: (and (< 0 |v_ULTIMATE.start_main_~x~0#1_10|) (< 0 |v_ULTIMATE.start_main_~y~0#1_10|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_10|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_10|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_10|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_10|} AuxVars[] AssignedVars[] 2#L22true [44] L22-->L22-2: Formula: (and (= |v_ULTIMATE.start_main_~x~0#1_1| |v_ULTIMATE.start_main_~z~0#1_1|) (>= |v_ULTIMATE.start_main_~y~0#1_1| |v_ULTIMATE.start_main_~x~0#1_1|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_1|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_1|} 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|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_~z~0#1] 5#L22-2true [48] L22-2-->L27-1: Formula: (and (= (+ |v_ULTIMATE.start_main_~x~0#1_6| |v_ULTIMATE.start_main_~y~0#1_6|) |v_ULTIMATE.start_main_~y~0#1_5|) (= (+ |v_ULTIMATE.start_main_~y~0#1_5| |v_ULTIMATE.start_main_~z~0#1_5|) |v_ULTIMATE.start_main_~z~0#1_4|) (< |v_ULTIMATE.start_main_#t~nondet2#1_3| 0) (= |v_ULTIMATE.start_main_~x~0#1_5| (+ (- 1) |v_ULTIMATE.start_main_~z~0#1_5|))) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_6|, 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_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_6|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|, ULTIMATE.start_main_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_4|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_5|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_#t~nondet2#1, ULTIMATE.start_main_~z~0#1] 4#L27-1true [2023-02-13 03:41:47,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:47,236 INFO L85 PathProgramCache]: Analyzing trace with hash 81, now seen corresponding path program 1 times [2023-02-13 03:41:47,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:41:47,242 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511933940] [2023-02-13 03:41:47,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:41:47,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:41:47,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:47,286 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:41:47,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:47,295 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:41:47,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:47,297 INFO L85 PathProgramCache]: Analyzing trace with hash 67721, now seen corresponding path program 1 times [2023-02-13 03:41:47,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:41:47,297 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259938721] [2023-02-13 03:41:47,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:41:47,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:41:47,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:47,305 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:41:47,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:47,310 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:41:47,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:47,311 INFO L85 PathProgramCache]: Analyzing trace with hash 2451001, now seen corresponding path program 1 times [2023-02-13 03:41:47,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:41:47,311 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72311440] [2023-02-13 03:41:47,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:41:47,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:41:47,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:47,316 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:41:47,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:47,320 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:41:47,383 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:41:47,384 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:41:47,384 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:41:47,384 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:41:47,384 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-13 03:41:47,384 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:47,384 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:41:47,384 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:41:47,384 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2023-02-13 03:41:47,384 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:41:47,385 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:41:47,391 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 03:41:47,398 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 03:41:47,400 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 03:41:47,401 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 03:41:47,441 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:41:47,442 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-13 03:41:47,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:47,443 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:47,444 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 03:41:47,445 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 03:41:47,446 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:41:47,446 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:41:47,456 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:41:47,457 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 03:41:47,472 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 03:41:47,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:47,473 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:47,473 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 03:41:47,475 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 03:41:47,475 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:41:47,475 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:41:47,484 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:41:47,485 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 03:41:47,504 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 03:41:47,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:47,504 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:47,506 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 03:41:47,506 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 03:41:47,508 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:41:47,508 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:41:47,520 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:41:47,520 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2#1=-1} Honda state: {ULTIMATE.start_main_#t~nondet2#1=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:41:47,556 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-02-13 03:41:47,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:47,557 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:47,559 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 03:41:47,560 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 03:41:47,561 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:41:47,561 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:41:47,609 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2023-02-13 03:41:47,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:47,610 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:47,611 INFO L229 MonitoredProcess]: Starting monitored process 6 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:41:47,612 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-02-13 03:41:47,613 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-13 03:41:47,614 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:41:55,162 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-13 03:41:55,165 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2023-02-13 03:41:55,165 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:41:55,166 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:41:55,166 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:41:55,166 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:41:55,166 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-13 03:41:55,166 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:55,166 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:41:55,167 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:41:55,167 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2023-02-13 03:41:55,167 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:41:55,167 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:41:55,169 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 03:41:55,173 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 03:41:55,178 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 03:41:55,182 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 03:41:55,272 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:41:55,281 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-13 03:41:55,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:55,284 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:55,286 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 03:41:55,288 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 03:41:55,289 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 03:41:55,300 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:41:55,302 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:41:55,302 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:41:55,302 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:41:55,310 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:41:55,311 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:41:55,320 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:41:55,358 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 03:41:55,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:55,359 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:55,360 INFO L229 MonitoredProcess]: Starting monitored process 8 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:41:55,361 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-02-13 03:41:55,363 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 03:41:55,373 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:41:55,373 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:41:55,373 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:41:55,374 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:41:55,378 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:41:55,379 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:41:55,386 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:41:55,416 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2023-02-13 03:41:55,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:55,417 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:55,419 INFO L229 MonitoredProcess]: Starting monitored process 9 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:41:55,420 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-02-13 03:41:55,420 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 03:41:55,427 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:41:55,428 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:41:55,428 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:41:55,429 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:41:55,429 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:41:55,430 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:41:55,430 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:41:55,433 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:41:55,472 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2023-02-13 03:41:55,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:55,473 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:55,475 INFO L229 MonitoredProcess]: Starting monitored process 10 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:41:55,476 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-02-13 03:41:55,477 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 03:41:55,482 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:41:55,482 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:41:55,482 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:41:55,483 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:41:55,483 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:41:55,487 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:41:55,488 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:41:55,496 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-13 03:41:55,506 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-13 03:41:55,506 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-13 03:41:55,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:55,511 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:55,514 INFO L229 MonitoredProcess]: Starting monitored process 11 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:41:55,518 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-02-13 03:41:55,519 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-13 03:41:55,520 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-13 03:41:55,520 INFO L513 LassoAnalysis]: Proved termination. [2023-02-13 03:41:55,521 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2023-02-13 03:41:55,558 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-02-13 03:41:55,562 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-13 03:41:55,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:55,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:41:55,592 WARN L261 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-13 03:41:55,593 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:41:55,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:41:55,604 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-13 03:41:55,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:41:55,647 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 03:41:55,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:55,690 INFO L139 LoopCannibalizer]: termination argument not suffcient for all loop shiftings [2023-02-13 03:41:55,690 INFO L100 LoopCannibalizer]: 4 predicates before loop cannibalization 4 predicates after loop cannibalization [2023-02-13 03:41:55,696 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 4 loop predicates [2023-02-13 03:41:55,698 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 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) Second operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 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 03:41:55,811 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 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). Second operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 13 states and 25 transitions. Complement of second has 10 states. [2023-02-13 03:41:55,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2023-02-13 03:41:55,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 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 03:41:55,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 20 transitions. [2023-02-13 03:41:55,828 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 1 letters. Loop has 3 letters. [2023-02-13 03:41:55,830 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:41:55,830 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 4 letters. Loop has 3 letters. [2023-02-13 03:41:55,831 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:41:55,831 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 1 letters. Loop has 6 letters. [2023-02-13 03:41:55,831 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:41:55,839 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 25 transitions. [2023-02-13 03:41:55,840 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-02-13 03:41:55,844 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 10 states and 18 transitions. [2023-02-13 03:41:55,845 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2023-02-13 03:41:55,845 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2023-02-13 03:41:55,846 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 18 transitions. [2023-02-13 03:41:55,846 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-13 03:41:55,846 INFO L220 hiAutomatonCegarLoop]: Abstraction has 10 states and 18 transitions. [2023-02-13 03:41:55,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 18 transitions. [2023-02-13 03:41:55,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2023-02-13 03:41:55,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.8) internal successors, (18), 9 states have internal predecessors, (18), 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 03:41:55,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 18 transitions. [2023-02-13 03:41:55,864 INFO L242 hiAutomatonCegarLoop]: Abstraction has 10 states and 18 transitions. [2023-02-13 03:41:55,864 INFO L426 stractBuchiCegarLoop]: Abstraction has 10 states and 18 transitions. [2023-02-13 03:41:55,864 INFO L333 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-02-13 03:41:55,864 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 18 transitions. [2023-02-13 03:41:55,865 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-02-13 03:41:55,865 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:41:55,865 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:41:55,865 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-02-13 03:41:55,865 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-02-13 03:41:55,865 INFO L733 eck$LassoCheckResult]: Stem: 70#ULTIMATE.startENTRY [50] ULTIMATE.startENTRY-->L27-1: Formula: true InVars {} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_12|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_12|, 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_6|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|, ULTIMATE.start_main_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_9|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_#t~nondet1#1, ULTIMATE.start_main_#t~nondet2#1, ULTIMATE.start_main_#t~nondet0#1, ULTIMATE.start_main_~z~0#1] 71#L27-1 [38] L27-1-->L22: Formula: (and (< 0 |v_ULTIMATE.start_main_~x~0#1_10|) (< 0 |v_ULTIMATE.start_main_~y~0#1_10|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_10|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_10|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_10|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_10|} AuxVars[] AssignedVars[] 66#L22 [31] L22-->L22-2: Formula: (and (< |v_ULTIMATE.start_main_~y~0#1_11| |v_ULTIMATE.start_main_~x~0#1_11|) (= |v_ULTIMATE.start_main_~y~0#1_11| |v_ULTIMATE.start_main_~z~0#1_8|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_11|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_11|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_11|, ULTIMATE.start_main_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_8|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_11|} AuxVars[] AssignedVars[ULTIMATE.start_main_~z~0#1] 67#L22-2 [40] L22-2-->L27-1: Formula: (and (= |v_ULTIMATE.start_main_#t~nondet2#1_5| 0) (= (+ (- 1) |v_ULTIMATE.start_main_~z~0#1_7|) |v_ULTIMATE.start_main_~y~0#1_7|) (= (+ |v_ULTIMATE.start_main_~x~0#1_7| |v_ULTIMATE.start_main_~z~0#1_7|) |v_ULTIMATE.start_main_~z~0#1_6|) (= (+ |v_ULTIMATE.start_main_~x~0#1_8| |v_ULTIMATE.start_main_~y~0#1_8|) |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_#t~nondet2#1=|v_ULTIMATE.start_main_#t~nondet2#1_5|, ULTIMATE.start_main_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_7|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_8|} 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|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_7|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_#t~nondet2#1, ULTIMATE.start_main_~z~0#1] 72#L27-1 [2023-02-13 03:41:55,865 INFO L735 eck$LassoCheckResult]: Loop: 72#L27-1 [38] L27-1-->L22: Formula: (and (< 0 |v_ULTIMATE.start_main_~x~0#1_10|) (< 0 |v_ULTIMATE.start_main_~y~0#1_10|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_10|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_10|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_10|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_10|} AuxVars[] AssignedVars[] 74#L22 [44] L22-->L22-2: Formula: (and (= |v_ULTIMATE.start_main_~x~0#1_1| |v_ULTIMATE.start_main_~z~0#1_1|) (>= |v_ULTIMATE.start_main_~y~0#1_1| |v_ULTIMATE.start_main_~x~0#1_1|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_1|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_1|} 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|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_~z~0#1] 75#L22-2 [48] L22-2-->L27-1: Formula: (and (= (+ |v_ULTIMATE.start_main_~x~0#1_6| |v_ULTIMATE.start_main_~y~0#1_6|) |v_ULTIMATE.start_main_~y~0#1_5|) (= (+ |v_ULTIMATE.start_main_~y~0#1_5| |v_ULTIMATE.start_main_~z~0#1_5|) |v_ULTIMATE.start_main_~z~0#1_4|) (< |v_ULTIMATE.start_main_#t~nondet2#1_3| 0) (= |v_ULTIMATE.start_main_~x~0#1_5| (+ (- 1) |v_ULTIMATE.start_main_~z~0#1_5|))) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_6|, 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_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_6|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|, ULTIMATE.start_main_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_4|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_5|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_#t~nondet2#1, ULTIMATE.start_main_~z~0#1] 72#L27-1 [2023-02-13 03:41:55,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:55,866 INFO L85 PathProgramCache]: Analyzing trace with hash 2450590, now seen corresponding path program 1 times [2023-02-13 03:41:55,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:41:55,866 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255059238] [2023-02-13 03:41:55,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:41:55,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:41:55,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:55,870 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:41:55,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:55,873 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:41:55,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:55,874 INFO L85 PathProgramCache]: Analyzing trace with hash 67721, now seen corresponding path program 2 times [2023-02-13 03:41:55,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:41:55,874 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780628339] [2023-02-13 03:41:55,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:41:55,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:41:55,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:55,877 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:41:55,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:55,880 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:41:55,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:55,880 INFO L85 PathProgramCache]: Analyzing trace with hash -8879412, now seen corresponding path program 1 times [2023-02-13 03:41:55,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:41:55,880 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277748656] [2023-02-13 03:41:55,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:41:55,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:41:55,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:41:55,912 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 03:41:55,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-13 03:41:55,913 INFO L335 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277748656] [2023-02-13 03:41:55,913 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277748656] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-13 03:41:55,913 INFO L335 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [558876157] [2023-02-13 03:41:55,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:41:55,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-13 03:41:55,913 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:55,916 INFO L229 MonitoredProcess]: Starting monitored process 12 with /export/starexec/sandbox/solver/Ultimate/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-13 03:41:55,917 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-02-13 03:41:55,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:41:55,931 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-13 03:41:55,932 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:41:55,958 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 03:41:55,958 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-13 03:41:55,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [558876157] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-13 03:41:55,958 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-13 03:41:55,958 ERROR L191 FreeRefinementEngine]: {81#true} [81#true, 81#true, 95#(and (<= |ULTIMATE.start_main_~z~0#1| |ULTIMATE.start_main_~y~0#1|) (< |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~x~0#1|)), 99#(<= (+ (* 2 |ULTIMATE.start_main_~y~0#1|) 3) |ULTIMATE.start_main_~x~0#1|), 103#(and (< 0 |ULTIMATE.start_main_~y~0#1|) (<= (+ (* 2 |ULTIMATE.start_main_~y~0#1|) 3) |ULTIMATE.start_main_~x~0#1|)), 82#false] {82#false} [2023-02-13 03:41:55,958 ERROR L197 FreeRefinementEngine]: {81#true} [81#true, 83#(<= 1 |ULTIMATE.start_main_~x~0#1|), 84#(<= (+ |ULTIMATE.start_main_~z~0#1| 1) (+ |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|)), 85#(<= (+ 2 |ULTIMATE.start_main_~y~0#1|) |ULTIMATE.start_main_~x~0#1|), 85#(<= (+ 2 |ULTIMATE.start_main_~y~0#1|) |ULTIMATE.start_main_~x~0#1|), 82#false] {82#false} [2023-02-13 03:41:55,959 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2023-02-13 03:41:55,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485374778] [2023-02-13 03:41:55,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-13 03:41:55,989 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:41:55,989 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:41:55,989 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:41:55,989 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:41:55,989 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-13 03:41:55,989 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:55,989 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:41:55,989 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:41:55,989 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2023-02-13 03:41:55,989 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:41:55,989 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:41:55,990 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 03:41:55,992 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 03:41:55,997 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 03:41:55,998 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 03:41:56,027 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:41:56,027 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-13 03:41:56,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:56,027 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:56,028 INFO L229 MonitoredProcess]: Starting monitored process 13 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:41:56,029 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-02-13 03:41:56,030 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:41:56,030 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:41:56,037 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:41:56,037 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 03:41:56,055 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2023-02-13 03:41:56,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:56,055 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:56,056 INFO L229 MonitoredProcess]: Starting monitored process 14 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:41:56,056 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-02-13 03:41:56,057 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:41:56,057 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:41:56,077 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2023-02-13 03:41:56,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:56,077 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:56,079 INFO L229 MonitoredProcess]: Starting monitored process 15 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:41:56,079 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-02-13 03:41:56,080 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-13 03:41:56,080 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:41:56,133 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-13 03:41:56,135 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2023-02-13 03:41:56,135 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:41:56,136 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:41:56,136 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:41:56,136 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:41:56,136 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-13 03:41:56,137 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:56,137 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:41:56,137 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:41:56,137 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2023-02-13 03:41:56,137 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:41:56,138 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:41:56,140 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 03:41:56,144 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:41:56,158 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 03:41:56,161 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 03:41:56,240 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:41:56,241 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-13 03:41:56,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:56,241 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:56,243 INFO L229 MonitoredProcess]: Starting monitored process 16 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 03:41:56,244 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-02-13 03:41:56,245 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 03:41:56,250 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:41:56,250 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:41:56,250 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:41:56,251 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:41:56,254 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:41:56,254 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:41:56,260 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:41:56,293 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2023-02-13 03:41:56,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:56,293 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:56,294 INFO L229 MonitoredProcess]: Starting monitored process 17 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:41:56,295 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-02-13 03:41:56,297 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 03:41:56,307 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:41:56,307 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:41:56,307 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:41:56,308 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:41:56,308 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:41:56,310 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:41:56,310 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:41:56,314 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-13 03:41:56,320 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-13 03:41:56,320 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-13 03:41:56,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:56,321 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:56,322 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 03:41:56,323 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 03:41:56,325 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-13 03:41:56,325 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-13 03:41:56,325 INFO L513 LassoAnalysis]: Proved termination. [2023-02-13 03:41:56,325 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2023-02-13 03:41:56,356 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2023-02-13 03:41:56,357 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-13 03:41:56,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:56,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:41:56,380 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-13 03:41:56,381 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:41:56,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:41:56,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-13 03:41:56,393 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:41:56,429 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 03:41:56,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:56,462 INFO L139 LoopCannibalizer]: termination argument not suffcient for all loop shiftings [2023-02-13 03:41:56,462 INFO L100 LoopCannibalizer]: 4 predicates before loop cannibalization 4 predicates after loop cannibalization [2023-02-13 03:41:56,463 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 4 loop predicates [2023-02-13 03:41:56,463 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 10 states and 18 transitions. cyclomatic complexity: 10 Second operand has 4 states, 4 states have (on average 1.75) 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 03:41:56,572 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 10 states and 18 transitions. cyclomatic complexity: 10. Second operand has 4 states, 4 states have (on average 1.75) 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) Result 24 states and 44 transitions. Complement of second has 16 states. [2023-02-13 03:41:56,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2023-02-13 03:41:56,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.75) 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 03:41:56,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 20 transitions. [2023-02-13 03:41:56,576 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 4 letters. Loop has 3 letters. [2023-02-13 03:41:56,576 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:41:56,576 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 7 letters. Loop has 3 letters. [2023-02-13 03:41:56,577 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:41:56,577 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 4 letters. Loop has 6 letters. [2023-02-13 03:41:56,578 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:41:56,580 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 44 transitions. [2023-02-13 03:41:56,582 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2023-02-13 03:41:56,584 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 19 states and 34 transitions. [2023-02-13 03:41:56,584 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2023-02-13 03:41:56,585 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2023-02-13 03:41:56,585 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 34 transitions. [2023-02-13 03:41:56,585 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-13 03:41:56,585 INFO L220 hiAutomatonCegarLoop]: Abstraction has 19 states and 34 transitions. [2023-02-13 03:41:56,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 34 transitions. [2023-02-13 03:41:56,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 7. [2023-02-13 03:41:56,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 6 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 03:41:56,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 12 transitions. [2023-02-13 03:41:56,587 INFO L242 hiAutomatonCegarLoop]: Abstraction has 7 states and 12 transitions. [2023-02-13 03:41:56,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-13 03:41:56,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-13 03:41:56,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-02-13 03:41:56,593 INFO L87 Difference]: Start difference. First operand 7 states and 12 transitions. Second operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 5 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 03:41:56,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-13 03:41:56,668 INFO L93 Difference]: Finished difference Result 14 states and 22 transitions. [2023-02-13 03:41:56,668 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 22 transitions. [2023-02-13 03:41:56,670 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2023-02-13 03:41:56,671 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 14 states and 22 transitions. [2023-02-13 03:41:56,671 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2023-02-13 03:41:56,671 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2023-02-13 03:41:56,672 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 22 transitions. [2023-02-13 03:41:56,672 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-13 03:41:56,672 INFO L220 hiAutomatonCegarLoop]: Abstraction has 14 states and 22 transitions. [2023-02-13 03:41:56,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 22 transitions. [2023-02-13 03:41:56,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 11. [2023-02-13 03:41:56,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 10 states have internal predecessors, (17), 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 03:41:56,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 17 transitions. [2023-02-13 03:41:56,676 INFO L242 hiAutomatonCegarLoop]: Abstraction has 11 states and 17 transitions. [2023-02-13 03:41:56,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-13 03:41:56,678 INFO L426 stractBuchiCegarLoop]: Abstraction has 11 states and 17 transitions. [2023-02-13 03:41:56,678 INFO L333 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-02-13 03:41:56,679 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 17 transitions. [2023-02-13 03:41:56,679 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2023-02-13 03:41:56,679 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:41:56,680 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:41:56,680 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2023-02-13 03:41:56,680 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-02-13 03:41:56,680 INFO L733 eck$LassoCheckResult]: Stem: 212#ULTIMATE.startENTRY [50] ULTIMATE.startENTRY-->L27-1: Formula: true InVars {} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_12|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_12|, 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_6|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|, ULTIMATE.start_main_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_9|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_#t~nondet1#1, ULTIMATE.start_main_#t~nondet2#1, ULTIMATE.start_main_#t~nondet0#1, ULTIMATE.start_main_~z~0#1] 213#L27-1 [2023-02-13 03:41:56,681 INFO L735 eck$LassoCheckResult]: Loop: 213#L27-1 [38] L27-1-->L22: Formula: (and (< 0 |v_ULTIMATE.start_main_~x~0#1_10|) (< 0 |v_ULTIMATE.start_main_~y~0#1_10|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_10|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_10|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_10|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_10|} AuxVars[] AssignedVars[] 214#L22 [44] L22-->L22-2: Formula: (and (= |v_ULTIMATE.start_main_~x~0#1_1| |v_ULTIMATE.start_main_~z~0#1_1|) (>= |v_ULTIMATE.start_main_~y~0#1_1| |v_ULTIMATE.start_main_~x~0#1_1|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_1|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_1|} 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|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_~z~0#1] 217#L22-2 [40] L22-2-->L27-1: Formula: (and (= |v_ULTIMATE.start_main_#t~nondet2#1_5| 0) (= (+ (- 1) |v_ULTIMATE.start_main_~z~0#1_7|) |v_ULTIMATE.start_main_~y~0#1_7|) (= (+ |v_ULTIMATE.start_main_~x~0#1_7| |v_ULTIMATE.start_main_~z~0#1_7|) |v_ULTIMATE.start_main_~z~0#1_6|) (= (+ |v_ULTIMATE.start_main_~x~0#1_8| |v_ULTIMATE.start_main_~y~0#1_8|) |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_#t~nondet2#1=|v_ULTIMATE.start_main_#t~nondet2#1_5|, ULTIMATE.start_main_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_7|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_8|} 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|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_7|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_#t~nondet2#1, ULTIMATE.start_main_~z~0#1] 213#L27-1 [2023-02-13 03:41:56,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:56,681 INFO L85 PathProgramCache]: Analyzing trace with hash 81, now seen corresponding path program 2 times [2023-02-13 03:41:56,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:41:56,682 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668354103] [2023-02-13 03:41:56,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:41:56,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:41:56,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:56,687 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:41:56,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:56,689 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:41:56,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:56,689 INFO L85 PathProgramCache]: Analyzing trace with hash 67713, now seen corresponding path program 1 times [2023-02-13 03:41:56,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:41:56,690 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569324492] [2023-02-13 03:41:56,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:41:56,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:41:56,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:56,696 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:41:56,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:56,700 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:41:56,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:56,700 INFO L85 PathProgramCache]: Analyzing trace with hash 2450993, now seen corresponding path program 1 times [2023-02-13 03:41:56,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:41:56,701 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008612101] [2023-02-13 03:41:56,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:41:56,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:41:56,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:56,705 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:41:56,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:56,708 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:41:56,744 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:41:56,744 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:41:56,744 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:41:56,744 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:41:56,744 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-13 03:41:56,744 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:56,744 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:41:56,744 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:41:56,744 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2023-02-13 03:41:56,744 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:41:56,744 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:41:56,745 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 03:41:56,747 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2023-02-13 03:41:56,750 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 03:41:56,756 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 03:41:56,757 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 03:41:56,763 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 03:41:56,782 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:41:56,782 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-13 03:41:56,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:56,783 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:56,783 INFO L229 MonitoredProcess]: Starting monitored process 19 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 03:41:56,785 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-02-13 03:41:56,785 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:41:56,785 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:41:56,790 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:41:56,790 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2#1=0} Honda state: {ULTIMATE.start_main_#t~nondet2#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:41:56,804 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2023-02-13 03:41:56,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:56,804 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:56,805 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 03:41:56,807 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 03:41:56,807 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:41:56,807 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:41:56,838 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 03:41:56,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:56,839 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:56,840 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 03:41:56,842 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 03:41:56,844 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-13 03:41:56,844 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:41:58,997 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-13 03:41:59,000 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2023-02-13 03:41:59,000 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:41:59,001 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:41:59,001 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:41:59,001 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:41:59,001 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-13 03:41:59,002 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:59,002 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:41:59,002 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:41:59,002 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2023-02-13 03:41:59,002 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:41:59,003 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:41:59,005 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 03:41:59,009 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 03:41:59,012 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 03:41:59,026 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 03:41:59,090 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:41:59,091 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-13 03:41:59,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:59,092 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:59,093 INFO L229 MonitoredProcess]: Starting monitored process 22 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 03:41:59,096 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-02-13 03:41:59,097 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 03:41:59,106 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:41:59,106 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:41:59,107 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:41:59,107 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:41:59,107 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:41:59,109 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:41:59,109 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:41:59,112 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:41:59,146 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2023-02-13 03:41:59,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:59,147 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:59,148 INFO L229 MonitoredProcess]: Starting monitored process 23 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 03:41:59,150 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2023-02-13 03:41:59,150 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 03:41:59,155 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:41:59,155 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:41:59,156 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:41:59,156 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:41:59,159 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:41:59,160 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:41:59,165 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:41:59,201 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2023-02-13 03:41:59,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:59,202 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:59,203 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 03:41:59,205 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 03:41:59,205 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 03:41:59,213 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:41:59,213 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:41:59,214 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:41:59,214 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:41:59,214 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:41:59,216 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:41:59,216 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:41:59,220 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-13 03:41:59,228 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2023-02-13 03:41:59,228 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 2 variables to zero. [2023-02-13 03:41:59,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:59,228 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:59,230 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 03:41:59,231 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-13 03:41:59,231 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-13 03:41:59,231 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 03:41:59,231 INFO L513 LassoAnalysis]: Proved termination. [2023-02-13 03:41:59,231 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2023-02-13 03:41:59,269 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 03:41:59,270 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-13 03:41:59,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:59,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:41:59,282 WARN L261 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-13 03:41:59,283 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:41:59,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:41:59,290 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-13 03:41:59,291 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:41:59,326 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 03:41:59,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:59,358 INFO L139 LoopCannibalizer]: termination argument not suffcient for all loop shiftings [2023-02-13 03:41:59,358 INFO L100 LoopCannibalizer]: 4 predicates before loop cannibalization 4 predicates after loop cannibalization [2023-02-13 03:41:59,359 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 4 loop predicates [2023-02-13 03:41:59,359 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 11 states and 17 transitions. cyclomatic complexity: 7 Second operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 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 03:41:59,459 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 11 states and 17 transitions. cyclomatic complexity: 7. Second operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 38 states and 63 transitions. Complement of second has 10 states. [2023-02-13 03:41:59,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2023-02-13 03:41:59,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 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 03:41:59,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 20 transitions. [2023-02-13 03:41:59,464 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 1 letters. Loop has 3 letters. [2023-02-13 03:41:59,464 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:41:59,464 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 4 letters. Loop has 3 letters. [2023-02-13 03:41:59,465 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:41:59,465 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 1 letters. Loop has 6 letters. [2023-02-13 03:41:59,465 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:41:59,467 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 63 transitions. [2023-02-13 03:41:59,471 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2023-02-13 03:41:59,472 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 21 states and 33 transitions. [2023-02-13 03:41:59,472 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2023-02-13 03:41:59,473 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2023-02-13 03:41:59,473 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 33 transitions. [2023-02-13 03:41:59,473 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-13 03:41:59,473 INFO L220 hiAutomatonCegarLoop]: Abstraction has 21 states and 33 transitions. [2023-02-13 03:41:59,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 33 transitions. [2023-02-13 03:41:59,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 18. [2023-02-13 03:41:59,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 17 states have internal predecessors, (28), 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 03:41:59,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 28 transitions. [2023-02-13 03:41:59,476 INFO L242 hiAutomatonCegarLoop]: Abstraction has 18 states and 28 transitions. [2023-02-13 03:41:59,476 INFO L426 stractBuchiCegarLoop]: Abstraction has 18 states and 28 transitions. [2023-02-13 03:41:59,477 INFO L333 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-02-13 03:41:59,477 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 28 transitions. [2023-02-13 03:41:59,478 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2023-02-13 03:41:59,478 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:41:59,478 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:41:59,479 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1] [2023-02-13 03:41:59,479 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-02-13 03:41:59,479 INFO L733 eck$LassoCheckResult]: Stem: 307#ULTIMATE.startENTRY [50] ULTIMATE.startENTRY-->L27-1: Formula: true InVars {} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_12|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_12|, 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_6|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|, ULTIMATE.start_main_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_9|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_#t~nondet1#1, ULTIMATE.start_main_#t~nondet2#1, ULTIMATE.start_main_#t~nondet0#1, ULTIMATE.start_main_~z~0#1] 308#L27-1 [38] L27-1-->L22: Formula: (and (< 0 |v_ULTIMATE.start_main_~x~0#1_10|) (< 0 |v_ULTIMATE.start_main_~y~0#1_10|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_10|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_10|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_10|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_10|} AuxVars[] AssignedVars[] 313#L22 [31] L22-->L22-2: Formula: (and (< |v_ULTIMATE.start_main_~y~0#1_11| |v_ULTIMATE.start_main_~x~0#1_11|) (= |v_ULTIMATE.start_main_~y~0#1_11| |v_ULTIMATE.start_main_~z~0#1_8|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_11|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_11|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_11|, ULTIMATE.start_main_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_8|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_11|} AuxVars[] AssignedVars[ULTIMATE.start_main_~z~0#1] 319#L22-2 [49] L22-2-->L27-1: Formula: (and (= (+ |v_ULTIMATE.start_main_~x~0#1_6| |v_ULTIMATE.start_main_~y~0#1_6|) |v_ULTIMATE.start_main_~y~0#1_5|) (= (+ |v_ULTIMATE.start_main_~y~0#1_5| |v_ULTIMATE.start_main_~z~0#1_5|) |v_ULTIMATE.start_main_~z~0#1_4|) (> |v_ULTIMATE.start_main_#t~nondet2#1_3| 0) (= |v_ULTIMATE.start_main_~x~0#1_5| (+ (- 1) |v_ULTIMATE.start_main_~z~0#1_5|))) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_6|, 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_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_6|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|, ULTIMATE.start_main_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_4|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_5|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_#t~nondet2#1, ULTIMATE.start_main_~z~0#1] 318#L27-1 [38] L27-1-->L22: Formula: (and (< 0 |v_ULTIMATE.start_main_~x~0#1_10|) (< 0 |v_ULTIMATE.start_main_~y~0#1_10|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_10|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_10|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_10|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_10|} AuxVars[] AssignedVars[] 315#L22 [2023-02-13 03:41:59,480 INFO L735 eck$LassoCheckResult]: Loop: 315#L22 [44] L22-->L22-2: Formula: (and (= |v_ULTIMATE.start_main_~x~0#1_1| |v_ULTIMATE.start_main_~z~0#1_1|) (>= |v_ULTIMATE.start_main_~y~0#1_1| |v_ULTIMATE.start_main_~x~0#1_1|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_1|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_1|} 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|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_~z~0#1] 309#L22-2 [40] L22-2-->L27-1: Formula: (and (= |v_ULTIMATE.start_main_#t~nondet2#1_5| 0) (= (+ (- 1) |v_ULTIMATE.start_main_~z~0#1_7|) |v_ULTIMATE.start_main_~y~0#1_7|) (= (+ |v_ULTIMATE.start_main_~x~0#1_7| |v_ULTIMATE.start_main_~z~0#1_7|) |v_ULTIMATE.start_main_~z~0#1_6|) (= (+ |v_ULTIMATE.start_main_~x~0#1_8| |v_ULTIMATE.start_main_~y~0#1_8|) |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_#t~nondet2#1=|v_ULTIMATE.start_main_#t~nondet2#1_5|, ULTIMATE.start_main_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_7|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_8|} 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|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_7|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_#t~nondet2#1, ULTIMATE.start_main_~z~0#1] 310#L27-1 [38] L27-1-->L22: Formula: (and (< 0 |v_ULTIMATE.start_main_~x~0#1_10|) (< 0 |v_ULTIMATE.start_main_~y~0#1_10|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_10|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_10|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_10|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_10|} AuxVars[] AssignedVars[] 315#L22 [2023-02-13 03:41:59,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:59,480 INFO L85 PathProgramCache]: Analyzing trace with hash 75968607, now seen corresponding path program 1 times [2023-02-13 03:41:59,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:41:59,481 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255657089] [2023-02-13 03:41:59,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:41:59,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:41:59,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:59,489 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:41:59,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:59,494 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:41:59,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:59,494 INFO L85 PathProgramCache]: Analyzing trace with hash 73353, now seen corresponding path program 2 times [2023-02-13 03:41:59,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:41:59,494 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593723936] [2023-02-13 03:41:59,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:41:59,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:41:59,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:59,498 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:41:59,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:59,501 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:41:59,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:59,502 INFO L85 PathProgramCache]: Analyzing trace with hash -266950293, now seen corresponding path program 1 times [2023-02-13 03:41:59,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:41:59,502 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110600615] [2023-02-13 03:41:59,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:41:59,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:41:59,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:59,506 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:41:59,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:59,511 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:41:59,537 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:41:59,538 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:41:59,538 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:41:59,538 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:41:59,538 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-13 03:41:59,538 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:59,538 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:41:59,538 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:41:59,538 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2023-02-13 03:41:59,538 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:41:59,538 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:41:59,539 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 03:41:59,545 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 03:41:59,547 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 03:41:59,549 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 03:41:59,597 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:41:59,597 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-13 03:41:59,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:59,598 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:59,599 INFO L229 MonitoredProcess]: Starting monitored process 26 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 03:41:59,602 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2023-02-13 03:41:59,603 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:41:59,603 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:41:59,652 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2023-02-13 03:41:59,653 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:59,653 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:59,654 INFO L229 MonitoredProcess]: Starting monitored process 27 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 03:41:59,656 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-13 03:41:59,656 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:41:59,656 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2023-02-13 03:41:59,812 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-13 03:41:59,814 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2023-02-13 03:41:59,814 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:41:59,814 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:41:59,815 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:41:59,815 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:41:59,815 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-13 03:41:59,815 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:59,816 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:41:59,816 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:41:59,816 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2023-02-13 03:41:59,816 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:41:59,816 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:41:59,818 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 03:41:59,832 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 03:41:59,836 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 03:41:59,838 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 03:41:59,903 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:41:59,904 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-13 03:41:59,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:59,905 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:59,906 INFO L229 MonitoredProcess]: Starting monitored process 28 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:41:59,909 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2023-02-13 03:41:59,909 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 03:41:59,919 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:41:59,919 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:41:59,920 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:41:59,920 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:41:59,920 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:41:59,922 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:41:59,923 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:41:59,930 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-13 03:41:59,940 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-02-13 03:41:59,940 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 2 variables to zero. [2023-02-13 03:41:59,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:59,941 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:59,942 INFO L229 MonitoredProcess]: Starting monitored process 29 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:41:59,946 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2023-02-13 03:41:59,946 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-13 03:41:59,946 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-13 03:41:59,947 INFO L513 LassoAnalysis]: Proved termination. [2023-02-13 03:41:59,947 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2023-02-13 03:41:59,983 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2023-02-13 03:41:59,983 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-13 03:41:59,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:42:00,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:42:00,003 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-13 03:42:00,003 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:42:00,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:42:00,015 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-13 03:42:00,016 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:42:00,041 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 03:42:00,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:42:00,046 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-13 03:42:00,048 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:42:00,097 INFO L100 LoopCannibalizer]: 3 predicates before loop cannibalization 5 predicates after loop cannibalization [2023-02-13 03:42:00,098 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 5 loop predicates [2023-02-13 03:42:00,098 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 18 states and 28 transitions. cyclomatic complexity: 13 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 03:42:00,236 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 18 states and 28 transitions. cyclomatic complexity: 13. 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 66 states and 117 transitions. Complement of second has 21 states. [2023-02-13 03:42:00,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 4 non-accepting loop states 2 accepting loop states [2023-02-13 03:42:00,238 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 03:42:00,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 22 transitions. [2023-02-13 03:42:00,240 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 22 transitions. Stem has 5 letters. Loop has 3 letters. [2023-02-13 03:42:00,240 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:42:00,241 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 22 transitions. Stem has 8 letters. Loop has 3 letters. [2023-02-13 03:42:00,241 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:42:00,241 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 22 transitions. Stem has 5 letters. Loop has 6 letters. [2023-02-13 03:42:00,242 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:42:00,244 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 66 states and 117 transitions. [2023-02-13 03:42:00,248 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2023-02-13 03:42:00,249 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 66 states to 25 states and 41 transitions. [2023-02-13 03:42:00,249 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2023-02-13 03:42:00,249 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3 [2023-02-13 03:42:00,250 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 41 transitions. [2023-02-13 03:42:00,250 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-13 03:42:00,250 INFO L220 hiAutomatonCegarLoop]: Abstraction has 25 states and 41 transitions. [2023-02-13 03:42:00,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 41 transitions. [2023-02-13 03:42:00,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 13. [2023-02-13 03:42:00,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 12 states have internal predecessors, (21), 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 03:42:00,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 21 transitions. [2023-02-13 03:42:00,252 INFO L242 hiAutomatonCegarLoop]: Abstraction has 13 states and 21 transitions. [2023-02-13 03:42:00,253 INFO L426 stractBuchiCegarLoop]: Abstraction has 13 states and 21 transitions. [2023-02-13 03:42:00,253 INFO L333 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-02-13 03:42:00,253 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 21 transitions. [2023-02-13 03:42:00,253 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2023-02-13 03:42:00,253 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:42:00,253 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:42:00,254 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1] [2023-02-13 03:42:00,254 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1] [2023-02-13 03:42:00,254 INFO L733 eck$LassoCheckResult]: Stem: 470#ULTIMATE.startENTRY [50] ULTIMATE.startENTRY-->L27-1: Formula: true InVars {} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_12|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_12|, 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_6|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|, ULTIMATE.start_main_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_9|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_#t~nondet1#1, ULTIMATE.start_main_#t~nondet2#1, ULTIMATE.start_main_#t~nondet0#1, ULTIMATE.start_main_~z~0#1] 471#L27-1 [38] L27-1-->L22: Formula: (and (< 0 |v_ULTIMATE.start_main_~x~0#1_10|) (< 0 |v_ULTIMATE.start_main_~y~0#1_10|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_10|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_10|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_10|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_10|} AuxVars[] AssignedVars[] 474#L22 [31] L22-->L22-2: Formula: (and (< |v_ULTIMATE.start_main_~y~0#1_11| |v_ULTIMATE.start_main_~x~0#1_11|) (= |v_ULTIMATE.start_main_~y~0#1_11| |v_ULTIMATE.start_main_~z~0#1_8|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_11|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_11|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_11|, ULTIMATE.start_main_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_8|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_11|} AuxVars[] AssignedVars[ULTIMATE.start_main_~z~0#1] 476#L22-2 [49] L22-2-->L27-1: Formula: (and (= (+ |v_ULTIMATE.start_main_~x~0#1_6| |v_ULTIMATE.start_main_~y~0#1_6|) |v_ULTIMATE.start_main_~y~0#1_5|) (= (+ |v_ULTIMATE.start_main_~y~0#1_5| |v_ULTIMATE.start_main_~z~0#1_5|) |v_ULTIMATE.start_main_~z~0#1_4|) (> |v_ULTIMATE.start_main_#t~nondet2#1_3| 0) (= |v_ULTIMATE.start_main_~x~0#1_5| (+ (- 1) |v_ULTIMATE.start_main_~z~0#1_5|))) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_6|, 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_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_6|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|, ULTIMATE.start_main_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_4|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_5|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_#t~nondet2#1, ULTIMATE.start_main_~z~0#1] 475#L27-1 [38] L27-1-->L22: Formula: (and (< 0 |v_ULTIMATE.start_main_~x~0#1_10|) (< 0 |v_ULTIMATE.start_main_~y~0#1_10|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_10|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_10|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_10|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_10|} AuxVars[] AssignedVars[] 466#L22 [2023-02-13 03:42:00,255 INFO L735 eck$LassoCheckResult]: Loop: 466#L22 [44] L22-->L22-2: Formula: (and (= |v_ULTIMATE.start_main_~x~0#1_1| |v_ULTIMATE.start_main_~z~0#1_1|) (>= |v_ULTIMATE.start_main_~y~0#1_1| |v_ULTIMATE.start_main_~x~0#1_1|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_1|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_1|} 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|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_~z~0#1] 467#L22-2 [40] L22-2-->L27-1: Formula: (and (= |v_ULTIMATE.start_main_#t~nondet2#1_5| 0) (= (+ (- 1) |v_ULTIMATE.start_main_~z~0#1_7|) |v_ULTIMATE.start_main_~y~0#1_7|) (= (+ |v_ULTIMATE.start_main_~x~0#1_7| |v_ULTIMATE.start_main_~z~0#1_7|) |v_ULTIMATE.start_main_~z~0#1_6|) (= (+ |v_ULTIMATE.start_main_~x~0#1_8| |v_ULTIMATE.start_main_~y~0#1_8|) |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_#t~nondet2#1=|v_ULTIMATE.start_main_#t~nondet2#1_5|, ULTIMATE.start_main_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_7|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_8|} 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|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_7|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_#t~nondet2#1, ULTIMATE.start_main_~z~0#1] 472#L27-1 [38] L27-1-->L22: Formula: (and (< 0 |v_ULTIMATE.start_main_~x~0#1_10|) (< 0 |v_ULTIMATE.start_main_~y~0#1_10|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_10|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_10|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_10|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_10|} AuxVars[] AssignedVars[] 474#L22 [44] L22-->L22-2: Formula: (and (= |v_ULTIMATE.start_main_~x~0#1_1| |v_ULTIMATE.start_main_~z~0#1_1|) (>= |v_ULTIMATE.start_main_~y~0#1_1| |v_ULTIMATE.start_main_~x~0#1_1|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_1|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_1|} 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|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_~z~0#1] 476#L22-2 [48] L22-2-->L27-1: Formula: (and (= (+ |v_ULTIMATE.start_main_~x~0#1_6| |v_ULTIMATE.start_main_~y~0#1_6|) |v_ULTIMATE.start_main_~y~0#1_5|) (= (+ |v_ULTIMATE.start_main_~y~0#1_5| |v_ULTIMATE.start_main_~z~0#1_5|) |v_ULTIMATE.start_main_~z~0#1_4|) (< |v_ULTIMATE.start_main_#t~nondet2#1_3| 0) (= |v_ULTIMATE.start_main_~x~0#1_5| (+ (- 1) |v_ULTIMATE.start_main_~z~0#1_5|))) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_6|, 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_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_6|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|, ULTIMATE.start_main_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_4|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_5|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_#t~nondet2#1, ULTIMATE.start_main_~z~0#1] 475#L27-1 [38] L27-1-->L22: Formula: (and (< 0 |v_ULTIMATE.start_main_~x~0#1_10|) (< 0 |v_ULTIMATE.start_main_~y~0#1_10|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_10|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_10|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_10|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_10|} AuxVars[] AssignedVars[] 466#L22 [2023-02-13 03:42:00,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:42:00,255 INFO L85 PathProgramCache]: Analyzing trace with hash 75968607, now seen corresponding path program 2 times [2023-02-13 03:42:00,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:42:00,256 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547190838] [2023-02-13 03:42:00,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:42:00,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:42:00,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:42:00,262 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:42:00,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:42:00,266 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:42:00,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:42:00,266 INFO L85 PathProgramCache]: Analyzing trace with hash -2109664263, now seen corresponding path program 1 times [2023-02-13 03:42:00,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:42:00,267 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601321161] [2023-02-13 03:42:00,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:42:00,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:42:00,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:42:00,296 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 03:42:00,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-13 03:42:00,296 INFO L335 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601321161] [2023-02-13 03:42:00,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601321161] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-13 03:42:00,296 INFO L335 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [537926103] [2023-02-13 03:42:00,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:42:00,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-13 03:42:00,297 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:42:00,298 INFO L229 MonitoredProcess]: Starting monitored process 30 with /export/starexec/sandbox/solver/Ultimate/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-13 03:42:00,300 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2023-02-13 03:42:00,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:42:00,325 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-13 03:42:00,325 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:42:00,367 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 03:42:00,368 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-13 03:42:00,368 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [537926103] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-13 03:42:00,368 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-13 03:42:00,369 ERROR L191 FreeRefinementEngine]: {482#true} [491#(and (<= |ULTIMATE.start_main_~z~0#1| |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|)), 485#(<= (+ (* 2 |ULTIMATE.start_main_~y~0#1|) 2) |ULTIMATE.start_main_~x~0#1|), 498#(and (< 0 |ULTIMATE.start_main_~y~0#1|) (<= (+ (* 2 |ULTIMATE.start_main_~y~0#1|) 2) |ULTIMATE.start_main_~x~0#1|)), 483#false, 483#false] {483#false} [2023-02-13 03:42:00,369 ERROR L197 FreeRefinementEngine]: {482#true} [484#(<= (* 2 |ULTIMATE.start_main_~z~0#1|) (+ |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|)), 485#(<= (+ (* 2 |ULTIMATE.start_main_~y~0#1|) 2) |ULTIMATE.start_main_~x~0#1|), 485#(<= (+ (* 2 |ULTIMATE.start_main_~y~0#1|) 2) |ULTIMATE.start_main_~x~0#1|), 486#(<= (+ 2 |ULTIMATE.start_main_~z~0#1|) 0), 487#(<= (+ 3 |ULTIMATE.start_main_~x~0#1|) 0)] {483#false} [2023-02-13 03:42:00,369 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2023-02-13 03:42:00,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684996598] [2023-02-13 03:42:00,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-13 03:42:00,371 INFO L750 eck$LassoCheckResult]: loop already infeasible [2023-02-13 03:42:00,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-13 03:42:00,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-13 03:42:00,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-02-13 03:42:00,373 INFO L87 Difference]: Start difference. First operand 13 states and 21 transitions. cyclomatic complexity: 9 Second operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 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 03:42:00,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-13 03:42:00,402 INFO L93 Difference]: Finished difference Result 18 states and 28 transitions. [2023-02-13 03:42:00,402 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 28 transitions. [2023-02-13 03:42:00,404 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 15 [2023-02-13 03:42:00,405 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 18 states and 28 transitions. [2023-02-13 03:42:00,405 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2023-02-13 03:42:00,405 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3 [2023-02-13 03:42:00,406 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 28 transitions. [2023-02-13 03:42:00,406 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-13 03:42:00,406 INFO L220 hiAutomatonCegarLoop]: Abstraction has 18 states and 28 transitions. [2023-02-13 03:42:00,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 28 transitions. [2023-02-13 03:42:00,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 11. [2023-02-13 03:42:00,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 10 states have internal predecessors, (18), 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 03:42:00,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 18 transitions. [2023-02-13 03:42:00,409 INFO L242 hiAutomatonCegarLoop]: Abstraction has 11 states and 18 transitions. [2023-02-13 03:42:00,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-13 03:42:00,411 INFO L426 stractBuchiCegarLoop]: Abstraction has 11 states and 18 transitions. [2023-02-13 03:42:00,411 INFO L333 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2023-02-13 03:42:00,411 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 18 transitions. [2023-02-13 03:42:00,412 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2023-02-13 03:42:00,412 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:42:00,412 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:42:00,412 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1] [2023-02-13 03:42:00,412 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1] [2023-02-13 03:42:00,413 INFO L733 eck$LassoCheckResult]: Stem: 527#ULTIMATE.startENTRY [50] ULTIMATE.startENTRY-->L27-1: Formula: true InVars {} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_12|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_12|, 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_6|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|, ULTIMATE.start_main_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_9|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_#t~nondet1#1, ULTIMATE.start_main_#t~nondet2#1, ULTIMATE.start_main_#t~nondet0#1, ULTIMATE.start_main_~z~0#1] 528#L27-1 [38] L27-1-->L22: Formula: (and (< 0 |v_ULTIMATE.start_main_~x~0#1_10|) (< 0 |v_ULTIMATE.start_main_~y~0#1_10|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_10|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_10|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_10|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_10|} AuxVars[] AssignedVars[] 531#L22 [31] L22-->L22-2: Formula: (and (< |v_ULTIMATE.start_main_~y~0#1_11| |v_ULTIMATE.start_main_~x~0#1_11|) (= |v_ULTIMATE.start_main_~y~0#1_11| |v_ULTIMATE.start_main_~z~0#1_8|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_11|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_11|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_11|, ULTIMATE.start_main_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_8|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_11|} AuxVars[] AssignedVars[ULTIMATE.start_main_~z~0#1] 526#L22-2 [49] L22-2-->L27-1: Formula: (and (= (+ |v_ULTIMATE.start_main_~x~0#1_6| |v_ULTIMATE.start_main_~y~0#1_6|) |v_ULTIMATE.start_main_~y~0#1_5|) (= (+ |v_ULTIMATE.start_main_~y~0#1_5| |v_ULTIMATE.start_main_~z~0#1_5|) |v_ULTIMATE.start_main_~z~0#1_4|) (> |v_ULTIMATE.start_main_#t~nondet2#1_3| 0) (= |v_ULTIMATE.start_main_~x~0#1_5| (+ (- 1) |v_ULTIMATE.start_main_~z~0#1_5|))) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_6|, 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_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_6|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|, ULTIMATE.start_main_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_4|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_5|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_#t~nondet2#1, ULTIMATE.start_main_~z~0#1] 533#L27-1 [38] L27-1-->L22: Formula: (and (< 0 |v_ULTIMATE.start_main_~x~0#1_10|) (< 0 |v_ULTIMATE.start_main_~y~0#1_10|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_10|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_10|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_10|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_10|} AuxVars[] AssignedVars[] 523#L22 [2023-02-13 03:42:00,413 INFO L735 eck$LassoCheckResult]: Loop: 523#L22 [44] L22-->L22-2: Formula: (and (= |v_ULTIMATE.start_main_~x~0#1_1| |v_ULTIMATE.start_main_~z~0#1_1|) (>= |v_ULTIMATE.start_main_~y~0#1_1| |v_ULTIMATE.start_main_~x~0#1_1|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_1|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_1|} 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|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_~z~0#1] 524#L22-2 [40] L22-2-->L27-1: Formula: (and (= |v_ULTIMATE.start_main_#t~nondet2#1_5| 0) (= (+ (- 1) |v_ULTIMATE.start_main_~z~0#1_7|) |v_ULTIMATE.start_main_~y~0#1_7|) (= (+ |v_ULTIMATE.start_main_~x~0#1_7| |v_ULTIMATE.start_main_~z~0#1_7|) |v_ULTIMATE.start_main_~z~0#1_6|) (= (+ |v_ULTIMATE.start_main_~x~0#1_8| |v_ULTIMATE.start_main_~y~0#1_8|) |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_#t~nondet2#1=|v_ULTIMATE.start_main_#t~nondet2#1_5|, ULTIMATE.start_main_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_7|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_8|} 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|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_7|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_#t~nondet2#1, ULTIMATE.start_main_~z~0#1] 529#L27-1 [38] L27-1-->L22: Formula: (and (< 0 |v_ULTIMATE.start_main_~x~0#1_10|) (< 0 |v_ULTIMATE.start_main_~y~0#1_10|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_10|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_10|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_10|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_10|} AuxVars[] AssignedVars[] 525#L22 [31] L22-->L22-2: Formula: (and (< |v_ULTIMATE.start_main_~y~0#1_11| |v_ULTIMATE.start_main_~x~0#1_11|) (= |v_ULTIMATE.start_main_~y~0#1_11| |v_ULTIMATE.start_main_~z~0#1_8|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_11|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_11|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_11|, ULTIMATE.start_main_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_8|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_11|} AuxVars[] AssignedVars[ULTIMATE.start_main_~z~0#1] 526#L22-2 [48] L22-2-->L27-1: Formula: (and (= (+ |v_ULTIMATE.start_main_~x~0#1_6| |v_ULTIMATE.start_main_~y~0#1_6|) |v_ULTIMATE.start_main_~y~0#1_5|) (= (+ |v_ULTIMATE.start_main_~y~0#1_5| |v_ULTIMATE.start_main_~z~0#1_5|) |v_ULTIMATE.start_main_~z~0#1_4|) (< |v_ULTIMATE.start_main_#t~nondet2#1_3| 0) (= |v_ULTIMATE.start_main_~x~0#1_5| (+ (- 1) |v_ULTIMATE.start_main_~z~0#1_5|))) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_6|, 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_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_6|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|, ULTIMATE.start_main_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_4|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_5|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_#t~nondet2#1, ULTIMATE.start_main_~z~0#1] 533#L27-1 [38] L27-1-->L22: Formula: (and (< 0 |v_ULTIMATE.start_main_~x~0#1_10|) (< 0 |v_ULTIMATE.start_main_~y~0#1_10|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_10|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_10|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_10|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_10|} AuxVars[] AssignedVars[] 523#L22 [2023-02-13 03:42:00,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:42:00,413 INFO L85 PathProgramCache]: Analyzing trace with hash 75968607, now seen corresponding path program 3 times [2023-02-13 03:42:00,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:42:00,414 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466012041] [2023-02-13 03:42:00,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:42:00,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:42:00,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:42:00,419 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:42:00,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:42:00,423 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:42:00,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:42:00,424 INFO L85 PathProgramCache]: Analyzing trace with hash -2109676756, now seen corresponding path program 1 times [2023-02-13 03:42:00,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:42:00,424 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944004780] [2023-02-13 03:42:00,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:42:00,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:42:00,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:42:00,429 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:42:00,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:42:00,433 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:42:00,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:42:00,434 INFO L85 PathProgramCache]: Analyzing trace with hash 1563284746, now seen corresponding path program 1 times [2023-02-13 03:42:00,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:42:00,434 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884704569] [2023-02-13 03:42:00,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:42:00,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:42:00,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:42:00,454 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:42:00,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:42:00,458 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:42:00,482 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2023-02-13 03:42:00,496 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:42:00,496 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:42:00,496 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:42:00,496 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:42:00,496 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-13 03:42:00,496 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:42:00,496 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:42:00,496 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:42:00,496 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration6_Loop [2023-02-13 03:42:00,496 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:42:00,496 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:42:00,497 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:42:00,498 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2023-02-13 03:42:00,502 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 03:42:00,504 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 03:42:00,505 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 03:42:00,508 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:42:00,536 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:42:00,537 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-13 03:42:00,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:42:00,537 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:42:00,537 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 03:42:00,543 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 03:42:00,543 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:42:00,543 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:42:00,568 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 03:42:00,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:42:00,568 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:42:00,569 INFO L229 MonitoredProcess]: Starting monitored process 32 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:42:00,569 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2023-02-13 03:42:00,570 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-13 03:42:00,570 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:42:05,266 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-13 03:42:05,269 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2023-02-13 03:42:05,270 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:42:05,270 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:42:05,270 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:42:05,270 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:42:05,270 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-13 03:42:05,270 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:42:05,270 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:42:05,270 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:42:05,270 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration6_Loop [2023-02-13 03:42:05,270 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:42:05,270 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:42:05,271 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 03:42:05,274 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 03:42:05,277 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 03:42:05,280 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 03:42:05,291 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 03:42:05,345 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:42:05,345 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-13 03:42:05,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:42:05,346 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:42:05,347 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 03:42:05,350 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 03:42:05,351 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 03:42:05,358 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:42:05,358 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:42:05,358 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:42:05,359 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:42:05,359 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:42:05,360 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:42:05,360 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:42:05,362 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:42:05,390 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 03:42:05,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:42:05,390 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:42:05,392 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 03:42:05,392 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 03:42:05,393 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 03:42:05,402 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:42:05,402 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:42:05,402 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:42:05,403 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:42:05,404 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:42:05,404 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:42:05,408 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:42:05,428 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 03:42:05,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:42:05,429 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:42:05,430 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 03:42:05,431 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 03:42:05,431 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 03:42:05,436 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:42:05,437 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:42:05,437 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:42:05,437 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:42:05,437 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:42:05,437 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:42:05,437 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:42:05,439 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:42:05,459 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2023-02-13 03:42:05,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:42:05,459 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:42:05,460 INFO L229 MonitoredProcess]: Starting monitored process 36 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 03:42:05,460 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2023-02-13 03:42:05,461 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 03:42:05,465 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:42:05,465 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:42:05,465 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:42:05,465 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:42:05,465 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:42:05,466 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:42:05,466 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:42:05,468 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-13 03:42:05,470 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-13 03:42:05,470 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-13 03:42:05,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:42:05,470 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:42:05,471 INFO L229 MonitoredProcess]: Starting monitored process 37 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 03:42:05,472 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2023-02-13 03:42:05,472 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-13 03:42:05,472 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-13 03:42:05,472 INFO L513 LassoAnalysis]: Proved termination. [2023-02-13 03:42:05,472 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2023-02-13 03:42:05,505 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2023-02-13 03:42:05,505 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-13 03:42:05,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:42:05,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:42:05,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-13 03:42:05,521 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:42:05,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:42:05,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 7 conjunts are in the unsatisfiable core [2023-02-13 03:42:05,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:42:05,584 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 03:42:05,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:42:05,593 INFO L139 LoopCannibalizer]: termination argument not suffcient for all loop shiftings [2023-02-13 03:42:05,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:42:05,599 INFO L139 LoopCannibalizer]: termination argument not suffcient for all loop shiftings [2023-02-13 03:42:05,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:42:05,603 INFO L139 LoopCannibalizer]: termination argument not suffcient for all loop shiftings [2023-02-13 03:42:05,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:42:05,607 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 7 conjunts are in the unsatisfiable core [2023-02-13 03:42:05,608 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:42:05,657 INFO L100 LoopCannibalizer]: 5 predicates before loop cannibalization 7 predicates after loop cannibalization [2023-02-13 03:42:05,657 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 7 loop predicates [2023-02-13 03:42:05,658 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 11 states and 18 transitions. cyclomatic complexity: 8 Second operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:42:05,890 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 11 states and 18 transitions. cyclomatic complexity: 8. Second operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 57 states and 94 transitions. Complement of second has 22 states. [2023-02-13 03:42:05,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 11 states 1 stem states 8 non-accepting loop states 2 accepting loop states [2023-02-13 03:42:05,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:42:05,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 26 transitions. [2023-02-13 03:42:05,892 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 26 transitions. Stem has 5 letters. Loop has 6 letters. [2023-02-13 03:42:05,892 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:42:05,892 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 26 transitions. Stem has 11 letters. Loop has 6 letters. [2023-02-13 03:42:05,893 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:42:05,893 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 26 transitions. Stem has 5 letters. Loop has 12 letters. [2023-02-13 03:42:05,893 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:42:05,894 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 57 states and 94 transitions. [2023-02-13 03:42:05,895 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-13 03:42:05,896 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 57 states to 0 states and 0 transitions. [2023-02-13 03:42:05,896 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-02-13 03:42:05,896 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-02-13 03:42:05,896 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-02-13 03:42:05,896 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-13 03:42:05,896 INFO L220 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-13 03:42:05,896 INFO L242 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-13 03:42:05,896 INFO L426 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-13 03:42:05,896 INFO L333 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2023-02-13 03:42:05,896 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-02-13 03:42:05,897 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-13 03:42:05,897 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-02-13 03:42:05,904 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.02 03:42:05 BasicIcfg [2023-02-13 03:42:05,904 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-02-13 03:42:05,904 INFO L158 Benchmark]: Toolchain (without parser) took 19126.07ms. 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: -357.4MB). Peak memory consumption was 78.9MB. Max. memory is 42.9GB. [2023-02-13 03:42:05,905 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 03:42:05,905 INFO L158 Benchmark]: CACSL2BoogieTranslator took 146.32ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. [2023-02-13 03:42:05,905 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.16ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 42.9GB. [2023-02-13 03:42:05,905 INFO L158 Benchmark]: Boogie Preprocessor took 9.86ms. 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 03:42:05,906 INFO L158 Benchmark]: RCFGBuilder took 165.25ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. [2023-02-13 03:42:05,906 INFO L158 Benchmark]: BlockEncodingV2 took 38.71ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 4.5MB). There was no memory consumed. Max. memory is 42.9GB. [2023-02-13 03:42:05,906 INFO L158 Benchmark]: TraceAbstraction took 13.32ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 2.3MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. [2023-02-13 03:42:05,906 INFO L158 Benchmark]: BuchiAutomizer took 18723.78ms. 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: -388.3MB). Peak memory consumption was 45.4MB. Max. memory is 42.9GB. [2023-02-13 03:42:05,907 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 9 locations, 12 edges - StatisticsResult: Encoded RCFG 4 locations, 7 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 146.32ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. * Boogie Procedure Inliner took 24.16ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 42.9GB. * Boogie Preprocessor took 9.86ms. 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 165.25ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. * BlockEncodingV2 took 38.71ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 4.5MB). There was no memory consumed. Max. memory is 42.9GB. * TraceAbstraction took 13.32ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 2.3MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. * BuchiAutomizer took 18723.78ms. 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: -388.3MB). Peak memory consumption was 45.4MB. Max. memory is 42.9GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - StatisticsResult: Constructed decomposition of program Your program was decomposed into 7 terminating modules (2 trivial, 0 deterministic, 5 nondeterministic). One nondeterministic module has affine ranking function x and consists of 6 locations. One nondeterministic module has affine ranking function x and consists of 6 locations. One nondeterministic module has affine ranking function y and consists of 6 locations. One nondeterministic module has affine ranking function y and consists of 7 locations. One nondeterministic module has affine ranking function x and consists of 11 locations. 2 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 18.6s and 7 iterations. TraceHistogramMax:2. Analysis of lassos took 17.1s. Construction of modules took 0.2s. Büchi inclusion checks took 1.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 6. Automata minimization 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 37 StatesRemovedByMinimization, 5 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [5, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 1/3 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 101 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 98 mSDsluCounter, 28 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 66 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 267 IncrementalHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 66 mSolverCounterUnsat, 24 mSDtfsCounter, 267 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT4 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital31 mio100 ax139 hnf100 lsp63 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq181 hnf93 smp100 dnf100 smp100 tf104 neg100 sie104 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 37ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 14.8s 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 03:42:05,927 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2023-02-13 03:42:06,154 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2023-02-13 03:42:06,352 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-02-13 03:42:06,554 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...