YES This is Ultimate 0.2.2-dev-e7f90c1-m [2023-02-13 03:39:36,416 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-13 03:39:36,417 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-13 03:39:36,432 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-13 03:39:36,433 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-13 03:39:36,433 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-13 03:39:36,434 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-13 03:39:36,435 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-13 03:39:36,436 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-13 03:39:36,436 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-13 03:39:36,437 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-13 03:39:36,437 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-13 03:39:36,437 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-13 03:39:36,438 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-13 03:39:36,438 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-13 03:39:36,439 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-13 03:39:36,439 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-13 03:39:36,440 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-13 03:39:36,441 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-13 03:39:36,442 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-13 03:39:36,442 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2023-02-13 03:39:36,443 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-13 03:39:36,443 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-13 03:39:36,444 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-13 03:39:36,444 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-13 03:39:36,446 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-13 03:39:36,446 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-13 03:39:36,446 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-13 03:39:36,446 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-13 03:39:36,447 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-13 03:39:36,447 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-13 03:39:36,447 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-13 03:39:36,448 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-13 03:39:36,448 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-13 03:39:36,448 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-13 03:39:36,449 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-13 03:39:36,449 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-13 03:39:36,449 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-13 03:39:36,450 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-13 03:39:36,450 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-13 03:39:36,450 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-13 03:39:36,451 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-13 03:39:36,451 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/Ultimate/./../termcomp2017.epf [2023-02-13 03:39:36,462 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-13 03:39:36,462 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-13 03:39:36,462 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-13 03:39:36,463 INFO L138 SettingsManager]: * Rewrite not-equals=true [2023-02-13 03:39:36,463 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-13 03:39:36,463 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2023-02-13 03:39:36,463 INFO L138 SettingsManager]: * Use SBE=true [2023-02-13 03:39:36,463 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-02-13 03:39:36,463 INFO L138 SettingsManager]: * Use old map elimination=false [2023-02-13 03:39:36,463 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2023-02-13 03:39:36,463 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2023-02-13 03:39:36,463 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2023-02-13 03:39:36,463 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-02-13 03:39:36,463 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2023-02-13 03:39:36,464 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:39:36,464 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-13 03:39:36,464 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-13 03:39:36,464 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-13 03:39:36,464 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-13 03:39:36,464 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-02-13 03:39:36,464 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2023-02-13 03:39:36,464 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-13 03:39:36,464 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-13 03:39:36,464 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2023-02-13 03:39:36,465 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2023-02-13 03:39:36,465 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-13 03:39:36,465 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-13 03:39:36,465 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-13 03:39:36,465 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-02-13 03:39:36,607 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-13 03:39:36,622 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-13 03:39:36,623 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-13 03:39:36,624 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-13 03:39:36,624 INFO L275 PluginConnector]: CDTParser initialized [2023-02-13 03:39:36,625 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2023-02-13 03:39:36,669 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/fe97e1ed3e474233b0a9e8bb2e72c65a/FLAGc300b0383 [2023-02-13 03:39:37,018 INFO L306 CDTParser]: Found 1 translation units. [2023-02-13 03:39:37,018 INFO L160 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2023-02-13 03:39:37,024 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/fe97e1ed3e474233b0a9e8bb2e72c65a/FLAGc300b0383 [2023-02-13 03:39:37,464 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/fe97e1ed3e474233b0a9e8bb2e72c65a [2023-02-13 03:39:37,467 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-13 03:39:37,468 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2023-02-13 03:39:37,470 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-13 03:39:37,470 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-13 03:39:37,475 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-13 03:39:37,476 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.02 03:39:37" (1/1) ... [2023-02-13 03:39:37,478 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d9c4f2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:39:37, skipping insertion in model container [2023-02-13 03:39:37,478 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.02 03:39:37" (1/1) ... [2023-02-13 03:39:37,487 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-13 03:39:37,499 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-13 03:39:37,594 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-13 03:39:37,596 INFO L203 MainTranslator]: Completed pre-run [2023-02-13 03:39:37,605 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-13 03:39:37,611 INFO L208 MainTranslator]: Completed translation [2023-02-13 03:39:37,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:39:37 WrapperNode [2023-02-13 03:39:37,612 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-13 03:39:37,612 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-13 03:39:37,613 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-13 03:39:37,613 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-13 03:39:37,624 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:39:37" (1/1) ... [2023-02-13 03:39:37,633 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:39:37" (1/1) ... [2023-02-13 03:39:37,649 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 46 [2023-02-13 03:39:37,650 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-13 03:39:37,650 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-13 03:39:37,650 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-13 03:39:37,650 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-13 03:39:37,656 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:39:37" (1/1) ... [2023-02-13 03:39:37,657 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:39:37" (1/1) ... [2023-02-13 03:39:37,657 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:39:37" (1/1) ... [2023-02-13 03:39:37,657 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:39:37" (1/1) ... [2023-02-13 03:39:37,658 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:39:37" (1/1) ... [2023-02-13 03:39:37,660 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:39:37" (1/1) ... [2023-02-13 03:39:37,661 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:39:37" (1/1) ... [2023-02-13 03:39:37,661 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-13 03:39:37,662 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-13 03:39:37,662 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-13 03:39:37,662 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-13 03:39:37,662 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:39:37" (1/1) ... [2023-02-13 03:39:37,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2023-02-13 03:39:37,686 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:39:37,700 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 03:39:37,703 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 03:39:37,749 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-13 03:39:37,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-13 03:39:37,814 INFO L234 CfgBuilder]: Building ICFG [2023-02-13 03:39:37,816 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-13 03:39:37,910 INFO L275 CfgBuilder]: Performing block encoding [2023-02-13 03:39:37,921 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-13 03:39:37,922 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-13 03:39:37,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:39:37 BoogieIcfgContainer [2023-02-13 03:39:37,924 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-13 03:39:37,925 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2023-02-13 03:39:37,925 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2023-02-13 03:39:37,928 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2023-02-13 03:39:37,928 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:39:37" (1/1) ... [2023-02-13 03:39:37,943 INFO L313 BlockEncoder]: Initial Icfg 16 locations, 26 edges [2023-02-13 03:39:37,944 INFO L258 BlockEncoder]: Using Remove infeasible edges [2023-02-13 03:39:37,944 INFO L263 BlockEncoder]: Using Maximize final states [2023-02-13 03:39:37,945 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2023-02-13 03:39:37,945 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2023-02-13 03:39:37,945 INFO L296 BlockEncoder]: Using Remove sink states [2023-02-13 03:39:37,946 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2023-02-13 03:39:37,946 INFO L179 BlockEncoder]: Using Rewrite not-equals [2023-02-13 03:39:37,960 INFO L185 BlockEncoder]: Using Use SBE [2023-02-13 03:39:37,969 INFO L200 BlockEncoder]: SBE split 2 edges [2023-02-13 03:39:37,971 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2023-02-13 03:39:37,972 INFO L71 MaximizeFinalStates]: 0 new accepting states [2023-02-13 03:39:37,975 INFO L101 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2023-02-13 03:39:37,976 INFO L70 RemoveSinkStates]: Removed 3 edges and 2 locations by removing sink states [2023-02-13 03:39:37,977 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2023-02-13 03:39:37,977 INFO L71 MaximizeFinalStates]: 0 new accepting states [2023-02-13 03:39:37,977 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2023-02-13 03:39:37,978 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2023-02-13 03:39:37,978 INFO L313 BlockEncoder]: Encoded RCFG 11 locations, 21 edges [2023-02-13 03:39:37,978 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 13.02 03:39:37 BasicIcfg [2023-02-13 03:39:37,978 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2023-02-13 03:39:37,979 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-13 03:39:37,979 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-13 03:39:37,981 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-13 03:39:37,981 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.02 03:39:37" (1/4) ... [2023-02-13 03:39:37,981 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27ac3dec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.02 03:39:37, skipping insertion in model container [2023-02-13 03:39:37,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:39:37" (2/4) ... [2023-02-13 03:39:37,982 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27ac3dec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.02 03:39:37, skipping insertion in model container [2023-02-13 03:39:37,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:39:37" (3/4) ... [2023-02-13 03:39:37,982 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27ac3dec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.02 03:39:37, skipping insertion in model container [2023-02-13 03:39:37,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 13.02 03:39:37" (4/4) ... [2023-02-13 03:39:37,983 INFO L111 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2023-02-13 03:39:37,992 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2023-02-13 03:39:37,992 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 0 error locations. [2023-02-13 03:39:37,993 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27ac3dec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.02 03:39:37, skipping insertion in model container [2023-02-13 03:39:37,993 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-13 03:39:37,993 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-02-13 03:39:37,993 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2023-02-13 03:39:37,995 INFO L275 PluginConnector]: BuchiAutomizer initialized [2023-02-13 03:39:37,996 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:39:37,996 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.02 03:39:37" (1/4) ... [2023-02-13 03:39:37,996 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@c8c7f73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.02 03:39:37, skipping insertion in model container [2023-02-13 03:39:37,996 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:39:37,996 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:39:37" (2/4) ... [2023-02-13 03:39:37,996 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@c8c7f73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.02 03:39:37, skipping insertion in model container [2023-02-13 03:39:37,996 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:39:37,996 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:39:37" (3/4) ... [2023-02-13 03:39:37,997 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@c8c7f73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.02 03:39:37, skipping insertion in model container [2023-02-13 03:39:37,997 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:39:37,997 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 13.02 03:39:37" (4/4) ... [2023-02-13 03:39:37,997 INFO L322 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2023-02-13 03:39:38,025 INFO L301 stractBuchiCegarLoop]: Interprodecural is true [2023-02-13 03:39:38,025 INFO L302 stractBuchiCegarLoop]: Hoare is true [2023-02-13 03:39:38,025 INFO L303 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-02-13 03:39:38,025 INFO L304 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-02-13 03:39:38,025 INFO L305 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-02-13 03:39:38,025 INFO L306 stractBuchiCegarLoop]: Difference is false [2023-02-13 03:39:38,025 INFO L307 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-02-13 03:39:38,025 INFO L311 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-02-13 03:39:38,028 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 10 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 03:39:38,038 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-13 03:39:38,038 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:39:38,038 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:39:38,041 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-13 03:39:38,041 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-02-13 03:39:38,042 INFO L333 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-02-13 03:39:38,042 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 10 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 03:39:38,042 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-13 03:39:38,042 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:39:38,043 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:39:38,043 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-13 03:39:38,043 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-02-13 03:39:38,046 INFO L733 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue [112] ULTIMATE.startENTRY-->L19: Formula: true InVars {} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_38|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_7|, 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_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_7|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_#t~nondet1#1, ULTIMATE.start_main_#t~nondet2#1, ULTIMATE.start_main_~z~0#1, ULTIMATE.start_main_#t~nondet0#1] 10#L19true [95] L19-->L19-2: Formula: (and (= |v_ULTIMATE.start_main_#t~nondet2#1_5| 0) (= (- 1) |v_ULTIMATE.start_main_~x~0#1_5|)) InVars {ULTIMATE.start_main_#t~nondet2#1=|v_ULTIMATE.start_main_#t~nondet2#1_5|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_#t~nondet2#1] 2#L19-2true [72] L19-2-->L24-1: Formula: (and (= |v_ULTIMATE.start_main_~x~0#1_6| (+ |v_ULTIMATE.start_main_~x~0#1_7| 1)) (< 0 |v_ULTIMATE.start_main_~x~0#1_7|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_7|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_6|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1] 11#L24-1true [100] L24-1-->L29-1: Formula: (and (= |v_ULTIMATE.start_main_~x~0#1_12| (+ (- 1) |v_ULTIMATE.start_main_~x~0#1_13|)) (>= 0 |v_ULTIMATE.start_main_~x~0#1_13|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_13|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_12|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1] 7#L29-1true [75] L29-1-->L34-1: Formula: (and (= |v_ULTIMATE.start_main_~x~0#1_14| (+ |v_ULTIMATE.start_main_~x~0#1_15| 1)) (< 0 |v_ULTIMATE.start_main_~x~0#1_15|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_15|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_14|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1] 6#L34-1true [92] L34-1-->L39-1: Formula: (and (= |v_ULTIMATE.start_main_~x~0#1_18| (+ |v_ULTIMATE.start_main_~x~0#1_19| 1)) (< 0 |v_ULTIMATE.start_main_~x~0#1_19|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_19|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_18|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1] 8#L39-1true [77] L39-1-->L44-1: Formula: (and (= |v_ULTIMATE.start_main_~x~0#1_22| (+ |v_ULTIMATE.start_main_~x~0#1_23| 1)) (< 0 |v_ULTIMATE.start_main_~x~0#1_23|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_23|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_22|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1] 12#L44-1true [104] L44-1-->L49-1: Formula: (and (= |v_ULTIMATE.start_main_~x~0#1_28| (+ (- 1) |v_ULTIMATE.start_main_~x~0#1_29|)) (>= 0 |v_ULTIMATE.start_main_~x~0#1_29|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_29|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_28|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1] 4#L49-1true [90] L49-1-->L54-1: Formula: (and (< 0 |v_ULTIMATE.start_main_~x~0#1_31|) (= |v_ULTIMATE.start_main_~x~0#1_30| (+ |v_ULTIMATE.start_main_~x~0#1_31| 1))) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_31|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_30|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1] 9#L54-1true [79] L54-1-->L64-1: Formula: (and (< 0 |v_ULTIMATE.start_main_~x~0#1_35|) (= (+ |v_ULTIMATE.start_main_~x~0#1_35| 1) |v_ULTIMATE.start_main_~x~0#1_34|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_35|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_34|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1] 3#L64-1true [2023-02-13 03:39:38,046 INFO L735 eck$LassoCheckResult]: Loop: 3#L64-1true [89] L64-1-->L64-1: Formula: (and (= (+ |v_ULTIMATE.start_main_~x~0#1_1| |v_ULTIMATE.start_main_~y~0#1_2|) |v_ULTIMATE.start_main_~y~0#1_1|) (< |v_ULTIMATE.start_main_~y~0#1_2| 100) (< |v_ULTIMATE.start_main_~z~0#1_2| 100) (= |v_ULTIMATE.start_main_~z~0#1_1| (+ (* (- 1) |v_ULTIMATE.start_main_~x~0#1_1|) |v_ULTIMATE.start_main_~z~0#1_2|))) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_1|, ULTIMATE.start_main_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_2|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_2|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_1|, ULTIMATE.start_main_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_1|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_~z~0#1] 3#L64-1true [2023-02-13 03:39:38,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:39:38,050 INFO L85 PathProgramCache]: Analyzing trace with hash -522215187, now seen corresponding path program 1 times [2023-02-13 03:39:38,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:39:38,055 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852508010] [2023-02-13 03:39:38,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:39:38,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:39:38,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:39:38,137 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 03:39:38,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-13 03:39:38,137 INFO L335 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852508010] [2023-02-13 03:39:38,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852508010] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-13 03:39:38,138 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-13 03:39:38,138 ERROR L191 FreeRefinementEngine]: {15#true} [15#true, 17#(<= (+ |ULTIMATE.start_main_~x~0#1| 1) 0), 16#false, 16#false, 16#false, 16#false, 16#false, 16#false, 16#false] {16#false} [2023-02-13 03:39:38,138 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-13 03:39:38,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350395165] [2023-02-13 03:39:38,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-13 03:39:38,142 INFO L738 eck$LassoCheckResult]: stem already infeasible [2023-02-13 03:39:38,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:39:38,143 INFO L85 PathProgramCache]: Analyzing trace with hash 120, now seen corresponding path program 1 times [2023-02-13 03:39:38,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:39:38,143 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102853220] [2023-02-13 03:39:38,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:39:38,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:39:38,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:39:38,147 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:39:38,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:39:38,158 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:39:38,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-13 03:39:38,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-13 03:39:38,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-13 03:39:38,201 INFO L87 Difference]: Start difference. First operand has 11 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 10 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) Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:39:38,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-13 03:39:38,238 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2023-02-13 03:39:38,238 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 30 transitions. [2023-02-13 03:39:38,239 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2023-02-13 03:39:38,242 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 20 states and 30 transitions. [2023-02-13 03:39:38,242 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2023-02-13 03:39:38,242 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2023-02-13 03:39:38,243 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 30 transitions. [2023-02-13 03:39:38,243 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-13 03:39:38,243 INFO L220 hiAutomatonCegarLoop]: Abstraction has 20 states and 30 transitions. [2023-02-13 03:39:38,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 30 transitions. [2023-02-13 03:39:38,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2023-02-13 03:39:38,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 18 states have internal predecessors, (29), 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 03:39:38,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 29 transitions. [2023-02-13 03:39:38,259 INFO L242 hiAutomatonCegarLoop]: Abstraction has 19 states and 29 transitions. [2023-02-13 03:39:38,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-13 03:39:38,267 INFO L426 stractBuchiCegarLoop]: Abstraction has 19 states and 29 transitions. [2023-02-13 03:39:38,268 INFO L333 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-02-13 03:39:38,268 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 29 transitions. [2023-02-13 03:39:38,269 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-13 03:39:38,269 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:39:38,269 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:39:38,270 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-13 03:39:38,270 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-02-13 03:39:38,271 INFO L733 eck$LassoCheckResult]: Stem: 45#ULTIMATE.startENTRY [112] ULTIMATE.startENTRY-->L19: Formula: true InVars {} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_38|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_7|, 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_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_7|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_#t~nondet1#1, ULTIMATE.start_main_#t~nondet2#1, ULTIMATE.start_main_~z~0#1, ULTIMATE.start_main_#t~nondet0#1] 46#L19 [109] L19-->L19-2: Formula: (and (< |v_ULTIMATE.start_main_#t~nondet2#1_3| 0) (= |v_ULTIMATE.start_main_~x~0#1_4| 1)) InVars {ULTIMATE.start_main_#t~nondet2#1=|v_ULTIMATE.start_main_#t~nondet2#1_3|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_#t~nondet2#1] 51#L19-2 [99] L19-2-->L24-1: Formula: (and (= (+ (- 1) |v_ULTIMATE.start_main_~x~0#1_9|) |v_ULTIMATE.start_main_~x~0#1_8|) (>= 0 |v_ULTIMATE.start_main_~x~0#1_9|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_9|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_8|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1] 42#L24-1 [100] L24-1-->L29-1: Formula: (and (= |v_ULTIMATE.start_main_~x~0#1_12| (+ (- 1) |v_ULTIMATE.start_main_~x~0#1_13|)) (>= 0 |v_ULTIMATE.start_main_~x~0#1_13|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_13|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_12|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1] 49#L29-1 [101] L29-1-->L34-1: Formula: (and (>= 0 |v_ULTIMATE.start_main_~x~0#1_17|) (= |v_ULTIMATE.start_main_~x~0#1_16| (+ (- 1) |v_ULTIMATE.start_main_~x~0#1_17|))) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_17|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_16|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1] 47#L34-1 [102] L34-1-->L39-1: Formula: (and (= |v_ULTIMATE.start_main_~x~0#1_20| (+ (- 1) |v_ULTIMATE.start_main_~x~0#1_21|)) (>= 0 |v_ULTIMATE.start_main_~x~0#1_21|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_21|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_20|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1] 48#L39-1 [103] L39-1-->L44-1: Formula: (and (= (+ (- 1) |v_ULTIMATE.start_main_~x~0#1_25|) |v_ULTIMATE.start_main_~x~0#1_24|) (>= 0 |v_ULTIMATE.start_main_~x~0#1_25|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_25|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_24|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1] 50#L44-1 [104] L44-1-->L49-1: Formula: (and (= |v_ULTIMATE.start_main_~x~0#1_28| (+ (- 1) |v_ULTIMATE.start_main_~x~0#1_29|)) (>= 0 |v_ULTIMATE.start_main_~x~0#1_29|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_29|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_28|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1] 43#L49-1 [105] L49-1-->L54-1: Formula: (and (>= 0 |v_ULTIMATE.start_main_~x~0#1_33|) (= |v_ULTIMATE.start_main_~x~0#1_32| (+ (- 1) |v_ULTIMATE.start_main_~x~0#1_33|))) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_33|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_32|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1] 44#L54-1 [106] L54-1-->L64-1: Formula: (and (>= 0 |v_ULTIMATE.start_main_~x~0#1_37|) (= |v_ULTIMATE.start_main_~x~0#1_36| (+ (- 1) |v_ULTIMATE.start_main_~x~0#1_37|))) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_37|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_36|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1] 40#L64-1 [2023-02-13 03:39:38,271 INFO L735 eck$LassoCheckResult]: Loop: 40#L64-1 [89] L64-1-->L64-1: Formula: (and (= (+ |v_ULTIMATE.start_main_~x~0#1_1| |v_ULTIMATE.start_main_~y~0#1_2|) |v_ULTIMATE.start_main_~y~0#1_1|) (< |v_ULTIMATE.start_main_~y~0#1_2| 100) (< |v_ULTIMATE.start_main_~z~0#1_2| 100) (= |v_ULTIMATE.start_main_~z~0#1_1| (+ (* (- 1) |v_ULTIMATE.start_main_~x~0#1_1|) |v_ULTIMATE.start_main_~z~0#1_2|))) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_1|, ULTIMATE.start_main_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_2|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_2|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_1|, ULTIMATE.start_main_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_1|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_~z~0#1] 40#L64-1 [2023-02-13 03:39:38,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:39:38,271 INFO L85 PathProgramCache]: Analyzing trace with hash 508833090, now seen corresponding path program 1 times [2023-02-13 03:39:38,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:39:38,272 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584007078] [2023-02-13 03:39:38,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:39:38,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:39:38,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:39:38,285 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 03:39:38,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-13 03:39:38,286 INFO L335 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584007078] [2023-02-13 03:39:38,286 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584007078] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-13 03:39:38,286 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-13 03:39:38,286 ERROR L191 FreeRefinementEngine]: {60#true} [60#true, 62#(<= 1 |ULTIMATE.start_main_~x~0#1|), 61#false, 61#false, 61#false, 61#false, 61#false, 61#false, 61#false] {61#false} [2023-02-13 03:39:38,286 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-13 03:39:38,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200113387] [2023-02-13 03:39:38,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-13 03:39:38,286 INFO L738 eck$LassoCheckResult]: stem already infeasible [2023-02-13 03:39:38,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:39:38,287 INFO L85 PathProgramCache]: Analyzing trace with hash 120, now seen corresponding path program 2 times [2023-02-13 03:39:38,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:39:38,287 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226597609] [2023-02-13 03:39:38,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:39:38,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:39:38,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:39:38,290 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:39:38,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:39:38,292 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:39:38,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-13 03:39:38,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-13 03:39:38,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-13 03:39:38,306 INFO L87 Difference]: Start difference. First operand 19 states and 29 transitions. cyclomatic complexity: 11 Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:39:38,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-13 03:39:38,340 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2023-02-13 03:39:38,340 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 22 transitions. [2023-02-13 03:39:38,341 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2023-02-13 03:39:38,341 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 20 states and 22 transitions. [2023-02-13 03:39:38,341 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2023-02-13 03:39:38,342 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2023-02-13 03:39:38,342 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 22 transitions. [2023-02-13 03:39:38,342 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-13 03:39:38,342 INFO L220 hiAutomatonCegarLoop]: Abstraction has 20 states and 22 transitions. [2023-02-13 03:39:38,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 22 transitions. [2023-02-13 03:39:38,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2023-02-13 03:39:38,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 19 states have (on average 1.105263157894737) internal successors, (21), 18 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 03:39:38,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2023-02-13 03:39:38,343 INFO L242 hiAutomatonCegarLoop]: Abstraction has 19 states and 21 transitions. [2023-02-13 03:39:38,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-13 03:39:38,344 INFO L426 stractBuchiCegarLoop]: Abstraction has 19 states and 21 transitions. [2023-02-13 03:39:38,345 INFO L333 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-02-13 03:39:38,345 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 21 transitions. [2023-02-13 03:39:38,345 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-13 03:39:38,345 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:39:38,345 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:39:38,345 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-13 03:39:38,345 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-02-13 03:39:38,346 INFO L733 eck$LassoCheckResult]: Stem: 90#ULTIMATE.startENTRY [112] ULTIMATE.startENTRY-->L19: Formula: true InVars {} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_38|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_7|, 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_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_7|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_#t~nondet1#1, ULTIMATE.start_main_#t~nondet2#1, ULTIMATE.start_main_~z~0#1, ULTIMATE.start_main_#t~nondet0#1] 91#L19 [109] L19-->L19-2: Formula: (and (< |v_ULTIMATE.start_main_#t~nondet2#1_3| 0) (= |v_ULTIMATE.start_main_~x~0#1_4| 1)) InVars {ULTIMATE.start_main_#t~nondet2#1=|v_ULTIMATE.start_main_#t~nondet2#1_3|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_#t~nondet2#1] 85#L19-2 [72] L19-2-->L24-1: Formula: (and (= |v_ULTIMATE.start_main_~x~0#1_6| (+ |v_ULTIMATE.start_main_~x~0#1_7| 1)) (< 0 |v_ULTIMATE.start_main_~x~0#1_7|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_7|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_6|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1] 86#L24-1 [82] L24-1-->L29-1: Formula: (and (< 0 |v_ULTIMATE.start_main_~x~0#1_11|) (= |v_ULTIMATE.start_main_~x~0#1_10| (+ |v_ULTIMATE.start_main_~x~0#1_11| 1))) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_11|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_10|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1] 103#L29-1 [75] L29-1-->L34-1: Formula: (and (= |v_ULTIMATE.start_main_~x~0#1_14| (+ |v_ULTIMATE.start_main_~x~0#1_15| 1)) (< 0 |v_ULTIMATE.start_main_~x~0#1_15|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_15|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_14|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1] 102#L34-1 [92] L34-1-->L39-1: Formula: (and (= |v_ULTIMATE.start_main_~x~0#1_18| (+ |v_ULTIMATE.start_main_~x~0#1_19| 1)) (< 0 |v_ULTIMATE.start_main_~x~0#1_19|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_19|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_18|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1] 101#L39-1 [77] L39-1-->L44-1: Formula: (and (= |v_ULTIMATE.start_main_~x~0#1_22| (+ |v_ULTIMATE.start_main_~x~0#1_23| 1)) (< 0 |v_ULTIMATE.start_main_~x~0#1_23|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_23|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_22|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1] 98#L44-1 [84] L44-1-->L49-1: Formula: (and (< 0 |v_ULTIMATE.start_main_~x~0#1_27|) (= (+ |v_ULTIMATE.start_main_~x~0#1_27| 1) |v_ULTIMATE.start_main_~x~0#1_26|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_27|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_26|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1] 88#L49-1 [90] L49-1-->L54-1: Formula: (and (< 0 |v_ULTIMATE.start_main_~x~0#1_31|) (= |v_ULTIMATE.start_main_~x~0#1_30| (+ |v_ULTIMATE.start_main_~x~0#1_31| 1))) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_31|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_30|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1] 89#L54-1 [79] L54-1-->L64-1: Formula: (and (< 0 |v_ULTIMATE.start_main_~x~0#1_35|) (= (+ |v_ULTIMATE.start_main_~x~0#1_35| 1) |v_ULTIMATE.start_main_~x~0#1_34|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_35|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_34|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1] 87#L64-1 [2023-02-13 03:39:38,346 INFO L735 eck$LassoCheckResult]: Loop: 87#L64-1 [89] L64-1-->L64-1: Formula: (and (= (+ |v_ULTIMATE.start_main_~x~0#1_1| |v_ULTIMATE.start_main_~y~0#1_2|) |v_ULTIMATE.start_main_~y~0#1_1|) (< |v_ULTIMATE.start_main_~y~0#1_2| 100) (< |v_ULTIMATE.start_main_~z~0#1_2| 100) (= |v_ULTIMATE.start_main_~z~0#1_1| (+ (* (- 1) |v_ULTIMATE.start_main_~x~0#1_1|) |v_ULTIMATE.start_main_~z~0#1_2|))) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_1|, ULTIMATE.start_main_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_2|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_2|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_1|, ULTIMATE.start_main_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_1|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_~z~0#1] 87#L64-1 [2023-02-13 03:39:38,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:39:38,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1148009813, now seen corresponding path program 1 times [2023-02-13 03:39:38,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:39:38,346 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125368238] [2023-02-13 03:39:38,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:39:38,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:39:38,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:39:38,354 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:39:38,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:39:38,360 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:39:38,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:39:38,361 INFO L85 PathProgramCache]: Analyzing trace with hash 120, now seen corresponding path program 3 times [2023-02-13 03:39:38,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:39:38,361 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069106695] [2023-02-13 03:39:38,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:39:38,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:39:38,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:39:38,364 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:39:38,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:39:38,366 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:39:38,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:39:38,366 INFO L85 PathProgramCache]: Analyzing trace with hash 1228565924, now seen corresponding path program 1 times [2023-02-13 03:39:38,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:39:38,366 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567622689] [2023-02-13 03:39:38,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:39:38,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:39:38,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:39:38,373 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:39:38,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:39:38,379 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:39:38,440 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:39:38,440 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:39:38,440 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:39:38,440 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:39:38,440 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-13 03:39:38,440 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:39:38,440 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:39:38,440 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:39:38,440 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Lasso [2023-02-13 03:39:38,441 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:39:38,441 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:39:38,448 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:39:38,457 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 03:39:38,463 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 03:39:38,465 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 03:39:38,466 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 03:39:38,467 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 03:39:38,469 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 03:39:38,507 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:39:38,507 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-13 03:39:38,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:39:38,508 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:39:38,509 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 03:39:38,511 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 03:39:38,511 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:39:38,511 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:39:38,536 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 03:39:38,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:39:38,537 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:39:38,538 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 03:39:38,540 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 03:39:38,540 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-13 03:39:38,540 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:39:38,725 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-13 03:39:38,730 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 03:39:38,731 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:39:38,731 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:39:38,731 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:39:38,731 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:39:38,732 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-13 03:39:38,732 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:39:38,732 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:39:38,732 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:39:38,732 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Lasso [2023-02-13 03:39:38,732 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:39:38,732 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:39:38,733 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 03:39:38,737 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 03:39:38,748 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 03:39:38,750 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 03:39:38,752 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 03:39:38,754 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 03:39:38,757 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 03:39:38,829 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:39:38,837 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-13 03:39:38,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:39:38,840 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:39:38,841 INFO L229 MonitoredProcess]: Starting monitored process 4 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 03:39:38,842 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-02-13 03:39:38,845 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 03:39:38,853 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:39:38,854 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:39:38,854 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:39:38,854 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:39:38,862 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:39:38,862 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:39:38,868 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:39:38,893 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2023-02-13 03:39:38,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:39:38,895 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:39:38,896 INFO L229 MonitoredProcess]: Starting monitored process 5 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 03:39:38,897 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-02-13 03:39:38,898 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 03:39:38,903 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:39:38,903 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:39:38,904 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:39:38,904 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:39:38,914 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:39:38,914 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:39:38,924 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-13 03:39:38,937 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2023-02-13 03:39:38,937 INFO L444 ModelExtractionUtils]: 7 out of 13 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-13 03:39:38,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:39:38,939 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:39:38,941 INFO L229 MonitoredProcess]: Starting monitored process 6 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:39:38,946 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-02-13 03:39:38,947 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-13 03:39:38,954 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2023-02-13 03:39:38,955 INFO L513 LassoAnalysis]: Proved termination. [2023-02-13 03:39:38,955 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = -1*ULTIMATE.start_main_~y~0#1 + 100 Supporting invariants [1*ULTIMATE.start_main_~x~0#1 - 9 >= 0] [2023-02-13 03:39:38,972 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-02-13 03:39:38,980 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2023-02-13 03:39:39,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:39:39,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:39:39,034 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 11 conjunts are in the unsatisfiable core [2023-02-13 03:39:39,036 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:39:39,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:39:39,112 WARN L261 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-13 03:39:39,113 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:39:39,113 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 03:39:39,168 INFO L100 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2023-02-13 03:39:39,169 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.8 stem predicates 2 loop predicates [2023-02-13 03:39:39,171 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 19 states and 21 transitions. cyclomatic complexity: 3 Second operand has 9 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 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 03:39:39,316 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 19 states and 21 transitions. cyclomatic complexity: 3. Second operand has 9 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 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 21 states and 23 transitions. Complement of second has 9 states. [2023-02-13 03:39:39,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 8 stem states 0 non-accepting loop states 1 accepting loop states [2023-02-13 03:39:39,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 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 03:39:39,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 24 transitions. [2023-02-13 03:39:39,321 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 24 transitions. Stem has 10 letters. Loop has 1 letters. [2023-02-13 03:39:39,323 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:39:39,323 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 24 transitions. Stem has 11 letters. Loop has 1 letters. [2023-02-13 03:39:39,323 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:39:39,323 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 24 transitions. Stem has 10 letters. Loop has 2 letters. [2023-02-13 03:39:39,324 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:39:39,326 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 23 transitions. [2023-02-13 03:39:39,327 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-13 03:39:39,327 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 11 states and 11 transitions. [2023-02-13 03:39:39,327 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2023-02-13 03:39:39,327 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2023-02-13 03:39:39,328 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 11 transitions. [2023-02-13 03:39:39,328 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-13 03:39:39,328 INFO L220 hiAutomatonCegarLoop]: Abstraction has 11 states and 11 transitions. [2023-02-13 03:39:39,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 11 transitions. [2023-02-13 03:39:39,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2023-02-13 03:39:39,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.0) internal successors, (11), 10 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 03:39:39,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2023-02-13 03:39:39,329 INFO L242 hiAutomatonCegarLoop]: Abstraction has 11 states and 11 transitions. [2023-02-13 03:39:39,329 INFO L426 stractBuchiCegarLoop]: Abstraction has 11 states and 11 transitions. [2023-02-13 03:39:39,330 INFO L333 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-02-13 03:39:39,330 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 11 transitions. [2023-02-13 03:39:39,330 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-13 03:39:39,330 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:39:39,331 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:39:39,331 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-13 03:39:39,331 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-02-13 03:39:39,331 INFO L733 eck$LassoCheckResult]: Stem: 216#ULTIMATE.startENTRY [112] ULTIMATE.startENTRY-->L19: Formula: true InVars {} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_38|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_7|, 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_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_7|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_#t~nondet1#1, ULTIMATE.start_main_#t~nondet2#1, ULTIMATE.start_main_~z~0#1, ULTIMATE.start_main_#t~nondet0#1] 217#L19 [95] L19-->L19-2: Formula: (and (= |v_ULTIMATE.start_main_#t~nondet2#1_5| 0) (= (- 1) |v_ULTIMATE.start_main_~x~0#1_5|)) InVars {ULTIMATE.start_main_#t~nondet2#1=|v_ULTIMATE.start_main_#t~nondet2#1_5|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_#t~nondet2#1] 212#L19-2 [99] L19-2-->L24-1: Formula: (and (= (+ (- 1) |v_ULTIMATE.start_main_~x~0#1_9|) |v_ULTIMATE.start_main_~x~0#1_8|) (>= 0 |v_ULTIMATE.start_main_~x~0#1_9|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_9|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_8|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1] 213#L24-1 [100] L24-1-->L29-1: Formula: (and (= |v_ULTIMATE.start_main_~x~0#1_12| (+ (- 1) |v_ULTIMATE.start_main_~x~0#1_13|)) (>= 0 |v_ULTIMATE.start_main_~x~0#1_13|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_13|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_12|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1] 220#L29-1 [101] L29-1-->L34-1: Formula: (and (>= 0 |v_ULTIMATE.start_main_~x~0#1_17|) (= |v_ULTIMATE.start_main_~x~0#1_16| (+ (- 1) |v_ULTIMATE.start_main_~x~0#1_17|))) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_17|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_16|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1] 218#L34-1 [102] L34-1-->L39-1: Formula: (and (= |v_ULTIMATE.start_main_~x~0#1_20| (+ (- 1) |v_ULTIMATE.start_main_~x~0#1_21|)) (>= 0 |v_ULTIMATE.start_main_~x~0#1_21|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_21|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_20|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1] 219#L39-1 [103] L39-1-->L44-1: Formula: (and (= (+ (- 1) |v_ULTIMATE.start_main_~x~0#1_25|) |v_ULTIMATE.start_main_~x~0#1_24|) (>= 0 |v_ULTIMATE.start_main_~x~0#1_25|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_25|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_24|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1] 221#L44-1 [104] L44-1-->L49-1: Formula: (and (= |v_ULTIMATE.start_main_~x~0#1_28| (+ (- 1) |v_ULTIMATE.start_main_~x~0#1_29|)) (>= 0 |v_ULTIMATE.start_main_~x~0#1_29|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_29|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_28|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1] 214#L49-1 [105] L49-1-->L54-1: Formula: (and (>= 0 |v_ULTIMATE.start_main_~x~0#1_33|) (= |v_ULTIMATE.start_main_~x~0#1_32| (+ (- 1) |v_ULTIMATE.start_main_~x~0#1_33|))) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_33|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_32|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1] 215#L54-1 [106] L54-1-->L64-1: Formula: (and (>= 0 |v_ULTIMATE.start_main_~x~0#1_37|) (= |v_ULTIMATE.start_main_~x~0#1_36| (+ (- 1) |v_ULTIMATE.start_main_~x~0#1_37|))) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_37|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_36|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1] 211#L64-1 [2023-02-13 03:39:39,332 INFO L735 eck$LassoCheckResult]: Loop: 211#L64-1 [89] L64-1-->L64-1: Formula: (and (= (+ |v_ULTIMATE.start_main_~x~0#1_1| |v_ULTIMATE.start_main_~y~0#1_2|) |v_ULTIMATE.start_main_~y~0#1_1|) (< |v_ULTIMATE.start_main_~y~0#1_2| 100) (< |v_ULTIMATE.start_main_~z~0#1_2| 100) (= |v_ULTIMATE.start_main_~z~0#1_1| (+ (* (- 1) |v_ULTIMATE.start_main_~x~0#1_1|) |v_ULTIMATE.start_main_~z~0#1_2|))) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_1|, ULTIMATE.start_main_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_2|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_2|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_1|, ULTIMATE.start_main_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_1|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_~z~0#1] 211#L64-1 [2023-02-13 03:39:39,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:39:39,332 INFO L85 PathProgramCache]: Analyzing trace with hash 43391796, now seen corresponding path program 1 times [2023-02-13 03:39:39,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:39:39,333 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103715848] [2023-02-13 03:39:39,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:39:39,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:39:39,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:39:39,340 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:39:39,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:39:39,346 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:39:39,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:39:39,346 INFO L85 PathProgramCache]: Analyzing trace with hash 120, now seen corresponding path program 4 times [2023-02-13 03:39:39,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:39:39,346 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866435371] [2023-02-13 03:39:39,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:39:39,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:39:39,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:39:39,349 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:39:39,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:39:39,351 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:39:39,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:39:39,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1345145765, now seen corresponding path program 1 times [2023-02-13 03:39:39,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:39:39,351 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729795409] [2023-02-13 03:39:39,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:39:39,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:39:39,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:39:39,357 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:39:39,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:39:39,362 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:39:39,395 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-02-13 03:39:39,420 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:39:39,420 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:39:39,420 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:39:39,420 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:39:39,420 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-13 03:39:39,420 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:39:39,420 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:39:39,420 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:39:39,420 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Lasso [2023-02-13 03:39:39,420 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:39:39,420 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:39:39,421 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:39:39,423 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 03:39:39,424 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:39:39,426 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 03:39:39,427 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:39:39,428 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 03:39:39,430 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 03:39:39,465 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:39:39,465 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-13 03:39:39,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:39:39,465 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:39:39,466 INFO L229 MonitoredProcess]: Starting monitored process 7 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 03:39:39,469 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-02-13 03:39:39,471 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:39:39,472 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:39:39,479 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:39:39,480 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 03:39:39,496 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2023-02-13 03:39:39,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:39:39,497 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:39:39,497 INFO L229 MonitoredProcess]: Starting monitored process 8 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:39:39,501 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-02-13 03:39:39,501 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:39:39,501 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:39:39,506 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:39:39,506 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1#1=0} Honda state: {ULTIMATE.start_main_#t~nondet1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:39:39,533 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2023-02-13 03:39:39,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:39:39,534 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:39:39,535 INFO L229 MonitoredProcess]: Starting monitored process 9 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:39:39,537 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-02-13 03:39:39,537 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:39:39,538 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:39:39,549 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:39:39,549 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res#1=0} Honda state: {ULTIMATE.start_main_#res#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:39:39,580 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2023-02-13 03:39:39,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:39:39,581 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:39:39,583 INFO L229 MonitoredProcess]: Starting monitored process 10 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:39:39,585 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-02-13 03:39:39,586 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:39:39,586 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:39:39,593 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:39:39,593 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 03:39:39,612 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2023-02-13 03:39:39,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:39:39,613 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:39:39,614 INFO L229 MonitoredProcess]: Starting monitored process 11 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:39:39,616 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-02-13 03:39:39,617 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:39:39,617 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:39:39,624 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:39:39,624 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0#1=0} Honda state: {ULTIMATE.start_main_#t~nondet0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:39:39,639 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-02-13 03:39:39,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:39:39,640 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:39:39,641 INFO L229 MonitoredProcess]: Starting monitored process 12 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 03:39:39,643 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-02-13 03:39:39,643 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:39:39,644 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:39:39,654 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:39:39,654 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:39:39,674 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2023-02-13 03:39:39,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:39:39,674 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:39:39,675 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 03:39:39,677 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 03:39:39,677 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:39:39,677 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:39:39,720 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 03:39:39,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:39:39,721 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:39:39,722 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 03:39:39,723 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 03:39:39,724 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-13 03:39:39,724 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:39:39,783 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-13 03:39:39,785 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 03:39:39,785 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:39:39,786 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:39:39,786 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:39:39,786 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:39:39,787 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-13 03:39:39,787 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:39:39,787 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:39:39,787 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:39:39,788 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Lasso [2023-02-13 03:39:39,788 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:39:39,788 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:39:39,791 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 03:39:39,794 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 03:39:39,797 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 03:39:39,800 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 03:39:39,803 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 03:39:39,807 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 03:39:39,822 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 03:39:39,890 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:39:39,890 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-13 03:39:39,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:39:39,891 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:39:39,893 INFO L229 MonitoredProcess]: Starting monitored process 15 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:39:39,895 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-02-13 03:39:39,895 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 03:39:39,901 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:39:39,902 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:39:39,902 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:39:39,902 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:39:39,905 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:39:39,906 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:39:39,909 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:39:39,924 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2023-02-13 03:39:39,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:39:39,925 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:39:39,926 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 03:39:39,928 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 03:39:39,928 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 03:39:39,933 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:39:39,933 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:39:39,934 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:39:39,934 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:39:39,935 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:39:39,936 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:39:39,936 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:39:39,937 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:39:39,973 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 03:39:39,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:39:39,974 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:39:39,975 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 03:39:39,977 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 03:39:39,978 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 03:39:39,982 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:39:39,982 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:39:39,983 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:39:39,983 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:39:39,983 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:39:39,984 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:39:39,984 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:39:39,985 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:39:40,036 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 03:39:40,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:39:40,037 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:39:40,038 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 03:39:40,040 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 03:39:40,041 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 03:39:40,046 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:39:40,047 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:39:40,047 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:39:40,047 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:39:40,048 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:39:40,048 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:39:40,049 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:39:40,050 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:39:40,073 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 03:39:40,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:39:40,074 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:39:40,075 INFO L229 MonitoredProcess]: Starting monitored process 19 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:39:40,077 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-02-13 03:39:40,078 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 03:39:40,082 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:39:40,082 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:39:40,083 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:39:40,083 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:39:40,086 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:39:40,086 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:39:40,093 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:39:40,110 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2023-02-13 03:39:40,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:39:40,111 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:39:40,112 INFO L229 MonitoredProcess]: Starting monitored process 20 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:39:40,115 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-02-13 03:39:40,116 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 03:39:40,120 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:39:40,121 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:39:40,121 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:39:40,121 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:39:40,126 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:39:40,126 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:39:40,143 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-13 03:39:40,158 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2023-02-13 03:39:40,158 INFO L444 ModelExtractionUtils]: 5 out of 13 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-13 03:39:40,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:39:40,159 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:39:40,161 INFO L229 MonitoredProcess]: Starting monitored process 21 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 03:39:40,162 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2023-02-13 03:39:40,162 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-13 03:39:40,175 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2023-02-13 03:39:40,175 INFO L513 LassoAnalysis]: Proved termination. [2023-02-13 03:39:40,176 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0#1, ULTIMATE.start_main_~x~0#1) = -9*ULTIMATE.start_main_~z~0#1 - 100*ULTIMATE.start_main_~x~0#1 Supporting invariants [-1*ULTIMATE.start_main_~x~0#1 - 9 >= 0] [2023-02-13 03:39:40,202 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2023-02-13 03:39:40,206 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2023-02-13 03:39:40,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:39:40,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:39:40,244 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 11 conjunts are in the unsatisfiable core [2023-02-13 03:39:40,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:39:40,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:39:40,363 WARN L261 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-13 03:39:40,363 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:39:40,363 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 03:39:40,415 INFO L100 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2023-02-13 03:39:40,415 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.9 stem predicates 2 loop predicates [2023-02-13 03:39:40,415 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 11 states and 11 transitions. cyclomatic complexity: 1 Second operand has 10 states, 10 states have (on average 1.1) internal successors, (11), 10 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 03:39:40,523 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 11 states and 11 transitions. cyclomatic complexity: 1. Second operand has 10 states, 10 states have (on average 1.1) internal successors, (11), 10 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 12 states and 12 transitions. Complement of second has 10 states. [2023-02-13 03:39:40,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 10 states 9 stem states 0 non-accepting loop states 1 accepting loop states [2023-02-13 03:39:40,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.1) internal successors, (11), 10 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 03:39:40,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2023-02-13 03:39:40,524 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 13 transitions. Stem has 10 letters. Loop has 1 letters. [2023-02-13 03:39:40,524 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:39:40,524 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 13 transitions. Stem has 11 letters. Loop has 1 letters. [2023-02-13 03:39:40,524 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:39:40,524 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 13 transitions. Stem has 10 letters. Loop has 2 letters. [2023-02-13 03:39:40,524 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:39:40,525 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 12 transitions. [2023-02-13 03:39:40,526 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-13 03:39:40,526 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 0 states and 0 transitions. [2023-02-13 03:39:40,526 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-02-13 03:39:40,526 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-02-13 03:39:40,526 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-02-13 03:39:40,526 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-13 03:39:40,526 INFO L220 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-13 03:39:40,526 INFO L242 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-13 03:39:40,526 INFO L426 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-13 03:39:40,526 INFO L333 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-02-13 03:39:40,526 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-02-13 03:39:40,526 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-13 03:39:40,527 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-02-13 03:39:40,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.02 03:39:40 BasicIcfg [2023-02-13 03:39:40,532 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-02-13 03:39:40,533 INFO L158 Benchmark]: Toolchain (without parser) took 3064.34ms. 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: -350.5MB). Peak memory consumption was 97.6MB. Max. memory is 42.9GB. [2023-02-13 03:39:40,533 INFO L158 Benchmark]: CDTParser took 0.09ms. 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 03:39:40,533 INFO L158 Benchmark]: CACSL2BoogieTranslator took 141.98ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 10.5MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. [2023-02-13 03:39:40,533 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.43ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. [2023-02-13 03:39:40,534 INFO L158 Benchmark]: Boogie Preprocessor took 11.18ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 42.9GB. [2023-02-13 03:39:40,534 INFO L158 Benchmark]: RCFGBuilder took 262.66ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 11.4MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. [2023-02-13 03:39:40,534 INFO L158 Benchmark]: BlockEncodingV2 took 52.98ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 5.7MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. [2023-02-13 03:39:40,534 INFO L158 Benchmark]: TraceAbstraction took 13.92ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 42.9GB. [2023-02-13 03:39:40,534 INFO L158 Benchmark]: BuchiAutomizer took 2538.77ms. 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: -384.7MB). Peak memory consumption was 64.0MB. Max. memory is 42.9GB. [2023-02-13 03:39:40,536 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 16 locations, 26 edges - StatisticsResult: Encoded RCFG 11 locations, 21 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 2.1GB. Free memory is still 2.1GB. There was no memory consumed. Max. memory is 42.9GB. * CACSL2BoogieTranslator took 141.98ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 10.5MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. * Boogie Procedure Inliner took 37.43ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. * Boogie Preprocessor took 11.18ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 42.9GB. * RCFGBuilder took 262.66ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 11.4MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. * BlockEncodingV2 took 52.98ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 5.7MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. * TraceAbstraction took 13.92ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 42.9GB. * BuchiAutomizer took 2538.77ms. 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: -384.7MB). Peak memory consumption was 64.0MB. Max. memory is 42.9GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (2 trivial, 0 deterministic, 2 nondeterministic). One nondeterministic module has affine ranking function -1 * y + 100 and consists of 9 locations. One nondeterministic module has affine ranking function -9 * z + -100 * x and consists of 10 locations. 2 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.5s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 1.6s. Construction of modules took 0.1s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 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 [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 27 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 27 mSDsluCounter, 13 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 107 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 124 IncrementalHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 107 mSolverCounterUnsat, 13 mSDtfsCounter, 124 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN2 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital24 mio100 ax154 hnf100 lsp64 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq183 hnf95 smp100 dnf100 smp100 tf100 neg100 sie109 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 29ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s 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 03:39:40,555 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2023-02-13 03:39:40,786 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...