YES This is Ultimate 0.2.2-dev-e7f90c1-m [2023-02-13 03:40:36,712 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-13 03:40:36,713 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-13 03:40:36,729 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-13 03:40:36,729 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-13 03:40:36,729 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-13 03:40:36,730 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-13 03:40:36,731 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-13 03:40:36,732 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-13 03:40:36,732 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-13 03:40:36,733 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-13 03:40:36,733 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-13 03:40:36,734 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-13 03:40:36,734 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-13 03:40:36,735 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-13 03:40:36,735 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-13 03:40:36,736 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-13 03:40:36,736 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-13 03:40:36,737 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-13 03:40:36,738 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-13 03:40:36,739 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2023-02-13 03:40:36,740 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-13 03:40:36,741 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-13 03:40:36,742 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-13 03:40:36,742 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-13 03:40:36,744 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-13 03:40:36,744 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-13 03:40:36,745 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-13 03:40:36,745 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-13 03:40:36,746 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-13 03:40:36,746 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-13 03:40:36,746 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-13 03:40:36,747 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-13 03:40:36,747 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-13 03:40:36,748 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-13 03:40:36,748 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-13 03:40:36,748 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-13 03:40:36,749 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-13 03:40:36,749 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-13 03:40:36,749 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-13 03:40:36,749 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-13 03:40:36,750 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-13 03:40:36,750 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/Ultimate/./../termcomp2017.epf [2023-02-13 03:40:36,762 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-13 03:40:36,762 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-13 03:40:36,763 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-13 03:40:36,763 INFO L138 SettingsManager]: * Rewrite not-equals=true [2023-02-13 03:40:36,763 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-13 03:40:36,763 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2023-02-13 03:40:36,763 INFO L138 SettingsManager]: * Use SBE=true [2023-02-13 03:40:36,763 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-02-13 03:40:36,764 INFO L138 SettingsManager]: * Use old map elimination=false [2023-02-13 03:40:36,764 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2023-02-13 03:40:36,764 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2023-02-13 03:40:36,764 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2023-02-13 03:40:36,764 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-02-13 03:40:36,764 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2023-02-13 03:40:36,764 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:36,764 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-13 03:40:36,764 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-13 03:40:36,764 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-13 03:40:36,764 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-13 03:40:36,765 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-02-13 03:40:36,765 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2023-02-13 03:40:36,765 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-13 03:40:36,765 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-13 03:40:36,765 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2023-02-13 03:40:36,765 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2023-02-13 03:40:36,765 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-13 03:40:36,765 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-13 03:40:36,765 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-13 03:40:36,765 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/export/starexec/sandbox/solver/Ultimate/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-02-13 03:40:36,889 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-13 03:40:36,901 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-13 03:40:36,902 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-13 03:40:36,903 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-13 03:40:36,903 INFO L275 PluginConnector]: CDTParser initialized [2023-02-13 03:40:36,904 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2023-02-13 03:40:36,942 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/f17edc7b259748409be0e1762f03f008/FLAGf43ae9dd0 [2023-02-13 03:40:37,305 INFO L306 CDTParser]: Found 1 translation units. [2023-02-13 03:40:37,306 INFO L160 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2023-02-13 03:40:37,312 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/f17edc7b259748409be0e1762f03f008/FLAGf43ae9dd0 [2023-02-13 03:40:37,333 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/f17edc7b259748409be0e1762f03f008 [2023-02-13 03:40:37,336 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-13 03:40:37,337 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2023-02-13 03:40:37,338 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-13 03:40:37,339 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-13 03:40:37,343 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-13 03:40:37,345 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.02 03:40:37" (1/1) ... [2023-02-13 03:40:37,347 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1229a99d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:37, skipping insertion in model container [2023-02-13 03:40:37,347 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.02 03:40:37" (1/1) ... [2023-02-13 03:40:37,359 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-13 03:40:37,371 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-13 03:40:37,455 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-13 03:40:37,457 INFO L203 MainTranslator]: Completed pre-run [2023-02-13 03:40:37,467 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-13 03:40:37,476 INFO L208 MainTranslator]: Completed translation [2023-02-13 03:40:37,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:37 WrapperNode [2023-02-13 03:40:37,476 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-13 03:40:37,477 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-13 03:40:37,477 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-13 03:40:37,477 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-13 03:40:37,482 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:37" (1/1) ... [2023-02-13 03:40:37,485 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:37" (1/1) ... [2023-02-13 03:40:37,493 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 18 [2023-02-13 03:40:37,493 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-13 03:40:37,494 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-13 03:40:37,494 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-13 03:40:37,494 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-13 03:40:37,498 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:37" (1/1) ... [2023-02-13 03:40:37,498 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:37" (1/1) ... [2023-02-13 03:40:37,499 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:37" (1/1) ... [2023-02-13 03:40:37,499 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:37" (1/1) ... [2023-02-13 03:40:37,500 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:37" (1/1) ... [2023-02-13 03:40:37,501 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:37" (1/1) ... [2023-02-13 03:40:37,502 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:37" (1/1) ... [2023-02-13 03:40:37,502 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-13 03:40:37,503 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-13 03:40:37,503 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-13 03:40:37,503 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-13 03:40:37,504 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:37" (1/1) ... [2023-02-13 03:40:37,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2023-02-13 03:40:37,516 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:37,530 INFO L229 MonitoredProcess]: Starting monitored process 1 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:37,532 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (1)] Waiting until timeout for monitored process [2023-02-13 03:40:37,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-13 03:40:37,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-13 03:40:37,613 INFO L234 CfgBuilder]: Building ICFG [2023-02-13 03:40:37,614 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-13 03:40:37,663 INFO L275 CfgBuilder]: Performing block encoding [2023-02-13 03:40:37,669 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-13 03:40:37,670 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-13 03:40:37,671 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:40:37 BoogieIcfgContainer [2023-02-13 03:40:37,671 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-13 03:40:37,672 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2023-02-13 03:40:37,672 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2023-02-13 03:40:37,673 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2023-02-13 03:40:37,674 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:40:37" (1/1) ... [2023-02-13 03:40:37,691 INFO L313 BlockEncoder]: Initial Icfg 8 locations, 10 edges [2023-02-13 03:40:37,692 INFO L258 BlockEncoder]: Using Remove infeasible edges [2023-02-13 03:40:37,692 INFO L263 BlockEncoder]: Using Maximize final states [2023-02-13 03:40:37,693 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2023-02-13 03:40:37,693 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2023-02-13 03:40:37,694 INFO L296 BlockEncoder]: Using Remove sink states [2023-02-13 03:40:37,694 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2023-02-13 03:40:37,694 INFO L179 BlockEncoder]: Using Rewrite not-equals [2023-02-13 03:40:37,703 INFO L185 BlockEncoder]: Using Use SBE [2023-02-13 03:40:37,706 INFO L200 BlockEncoder]: SBE split 0 edges [2023-02-13 03:40:37,709 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2023-02-13 03:40:37,710 INFO L71 MaximizeFinalStates]: 0 new accepting states [2023-02-13 03:40:37,714 INFO L101 BaseMinimizeStates]: Removed 8 edges and 4 locations by large block encoding [2023-02-13 03:40:37,715 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2023-02-13 03:40:37,716 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2023-02-13 03:40:37,716 INFO L71 MaximizeFinalStates]: 0 new accepting states [2023-02-13 03:40:37,716 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2023-02-13 03:40:37,716 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2023-02-13 03:40:37,716 INFO L313 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2023-02-13 03:40:37,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 13.02 03:40:37 BasicIcfg [2023-02-13 03:40:37,716 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2023-02-13 03:40:37,717 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-13 03:40:37,717 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-13 03:40:37,719 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-13 03:40:37,719 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.02 03:40:37" (1/4) ... [2023-02-13 03:40:37,720 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49eebc85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.02 03:40:37, skipping insertion in model container [2023-02-13 03:40:37,720 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:37" (2/4) ... [2023-02-13 03:40:37,720 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49eebc85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.02 03:40:37, skipping insertion in model container [2023-02-13 03:40:37,720 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:40:37" (3/4) ... [2023-02-13 03:40:37,720 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49eebc85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.02 03:40:37, skipping insertion in model container [2023-02-13 03:40:37,720 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 13.02 03:40:37" (4/4) ... [2023-02-13 03:40:37,721 INFO L111 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2023-02-13 03:40:37,730 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2023-02-13 03:40:37,730 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 0 error locations. [2023-02-13 03:40:37,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49eebc85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.02 03:40:37, skipping insertion in model container [2023-02-13 03:40:37,730 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-13 03:40:37,731 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-02-13 03:40:37,731 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2023-02-13 03:40:37,733 INFO L275 PluginConnector]: BuchiAutomizer initialized [2023-02-13 03:40:37,733 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:40:37,733 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.02 03:40:37" (1/4) ... [2023-02-13 03:40:37,733 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@28ffea3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.02 03:40:37, skipping insertion in model container [2023-02-13 03:40:37,733 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:40:37,734 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:37" (2/4) ... [2023-02-13 03:40:37,734 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@28ffea3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.02 03:40:37, skipping insertion in model container [2023-02-13 03:40:37,734 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:40:37,734 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:40:37" (3/4) ... [2023-02-13 03:40:37,734 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@28ffea3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.02 03:40:37, skipping insertion in model container [2023-02-13 03:40:37,734 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:40:37,734 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 13.02 03:40:37" (4/4) ... [2023-02-13 03:40:37,735 INFO L322 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2023-02-13 03:40:37,764 INFO L301 stractBuchiCegarLoop]: Interprodecural is true [2023-02-13 03:40:37,764 INFO L302 stractBuchiCegarLoop]: Hoare is true [2023-02-13 03:40:37,764 INFO L303 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-02-13 03:40:37,765 INFO L304 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-02-13 03:40:37,765 INFO L305 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-02-13 03:40:37,765 INFO L306 stractBuchiCegarLoop]: Difference is false [2023-02-13 03:40:37,765 INFO L307 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-02-13 03:40:37,765 INFO L311 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-02-13 03:40:37,767 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:37,776 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-13 03:40:37,776 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:40:37,777 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:40:37,779 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2023-02-13 03:40:37,779 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-13 03:40:37,780 INFO L333 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-02-13 03:40:37,780 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:37,780 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-13 03:40:37,780 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:40:37,780 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:40:37,780 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2023-02-13 03:40:37,780 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-13 03:40:37,783 INFO L733 eck$LassoCheckResult]: Stem: 2#ULTIMATE.startENTRYtrue [37] ULTIMATE.startENTRY-->L15-2: Formula: (= |v_ULTIMATE.start_main_~c~0#1_10| 1) InVars {} OutVars{ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_8|, ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_10|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_4|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|} AuxVars[] AssignedVars[ULTIMATE.start_main_~n~0#1, ULTIMATE.start_main_~c~0#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_#t~nondet0#1] 4#L15-2true [2023-02-13 03:40:37,783 INFO L735 eck$LassoCheckResult]: Loop: 4#L15-2true [32] L15-2-->L15: Formula: (< 0 |v_ULTIMATE.start_main_~c~0#1_7|) InVars {ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_7|} OutVars{ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_7|} AuxVars[] AssignedVars[] 3#L15true [36] L15-->L15-2: Formula: (and (= |v_ULTIMATE.start_main_~c~0#1_1| (+ |v_ULTIMATE.start_main_~c~0#1_2| 1)) (= (+ |v_ULTIMATE.start_main_~n~0#1_2| 11) |v_ULTIMATE.start_main_~n~0#1_1|) (>= 100 |v_ULTIMATE.start_main_~n~0#1_2|)) InVars {ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_2|, ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_2|} OutVars{ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_1|, ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_~n~0#1, ULTIMATE.start_main_~c~0#1] 4#L15-2true [2023-02-13 03:40:37,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:37,787 INFO L85 PathProgramCache]: Analyzing trace with hash 68, now seen corresponding path program 1 times [2023-02-13 03:40:37,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:37,792 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223883625] [2023-02-13 03:40:37,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:37,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:37,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:37,836 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:37,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:37,846 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:37,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:37,848 INFO L85 PathProgramCache]: Analyzing trace with hash 1989, now seen corresponding path program 1 times [2023-02-13 03:40:37,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:37,849 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667999728] [2023-02-13 03:40:37,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:37,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:37,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:37,855 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:37,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:37,858 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:37,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:37,859 INFO L85 PathProgramCache]: Analyzing trace with hash 66376, now seen corresponding path program 1 times [2023-02-13 03:40:37,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:37,859 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579126573] [2023-02-13 03:40:37,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:37,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:37,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:37,864 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:37,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:37,867 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:37,903 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:37,904 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:37,904 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:37,904 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:37,904 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-13 03:40:37,904 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:37,904 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:37,904 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:37,904 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2023-02-13 03:40:37,905 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:37,905 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:37,914 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:37,921 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:37,923 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:37,927 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:37,959 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:37,959 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-13 03:40:37,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:37,961 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:37,968 INFO L229 MonitoredProcess]: Starting monitored process 2 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:37,971 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-02-13 03:40:37,971 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:37,972 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:37,992 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:37,992 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:38,009 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-02-13 03:40:38,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:38,010 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:38,011 INFO L229 MonitoredProcess]: Starting monitored process 3 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:38,020 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-02-13 03:40:38,020 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:38,020 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:38,038 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:38,039 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:38,055 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-02-13 03:40:38,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:38,056 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:38,057 INFO L229 MonitoredProcess]: Starting monitored process 4 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:38,059 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-02-13 03:40:38,061 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:38,061 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:38,100 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-02-13 03:40:38,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:38,101 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:38,103 INFO L229 MonitoredProcess]: Starting monitored process 5 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:38,105 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-02-13 03:40:38,106 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-13 03:40:38,107 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:38,139 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-13 03:40:38,140 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2023-02-13 03:40:38,141 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:38,141 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:38,142 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:38,142 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:38,142 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-13 03:40:38,142 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:38,143 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:38,143 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:38,143 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2023-02-13 03:40:38,143 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:38,144 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:38,148 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:38,152 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:38,155 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:38,159 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:38,184 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:38,186 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-13 03:40:38,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:38,187 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:38,188 INFO L229 MonitoredProcess]: Starting monitored process 6 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:38,191 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-02-13 03:40:38,192 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:38,196 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:38,197 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:38,197 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:38,197 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:38,200 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:40:38,201 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:40:38,212 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:40:38,227 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 03:40:38,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:38,228 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:38,228 INFO L229 MonitoredProcess]: Starting monitored process 7 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:38,240 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-02-13 03:40:38,241 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:38,247 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:38,247 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:38,247 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:38,248 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:38,250 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:40:38,256 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:40:38,260 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:40:38,278 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2023-02-13 03:40:38,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:38,279 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:38,279 INFO L229 MonitoredProcess]: Starting monitored process 8 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:38,280 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-02-13 03:40:38,281 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:38,285 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:38,285 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:40:38,285 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:38,285 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:38,286 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:38,286 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:40:38,287 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:40:38,289 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-13 03:40:38,295 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-13 03:40:38,295 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-13 03:40:38,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:38,296 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:38,297 INFO L229 MonitoredProcess]: Starting monitored process 9 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:38,298 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-02-13 03:40:38,299 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-13 03:40:38,299 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-13 03:40:38,299 INFO L513 LassoAnalysis]: Proved termination. [2023-02-13 03:40:38,300 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0#1) = -2*ULTIMATE.start_main_~n~0#1 + 211 Supporting invariants [] [2023-02-13 03:40:38,322 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2023-02-13 03:40:38,329 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-13 03:40:38,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:38,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:38,373 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-13 03:40:38,374 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:38,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:38,385 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-13 03:40:38,386 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:38,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 03:40:38,409 INFO L100 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization [2023-02-13 03:40:38,412 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-02-13 03:40:38,413 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:38,427 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 7 states and 10 transitions. Complement of second has 4 states. [2023-02-13 03:40:38,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-02-13 03:40:38,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:38,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2023-02-13 03:40:38,436 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 1 letters. Loop has 2 letters. [2023-02-13 03:40:38,437 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:38,437 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 3 letters. Loop has 2 letters. [2023-02-13 03:40:38,438 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:38,438 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 1 letters. Loop has 4 letters. [2023-02-13 03:40:38,438 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:38,443 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7 states and 10 transitions. [2023-02-13 03:40:38,443 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-13 03:40:38,446 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7 states to 7 states and 10 transitions. [2023-02-13 03:40:38,447 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2023-02-13 03:40:38,448 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2023-02-13 03:40:38,448 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2023-02-13 03:40:38,448 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-13 03:40:38,448 INFO L220 hiAutomatonCegarLoop]: Abstraction has 7 states and 10 transitions. [2023-02-13 03:40:38,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2023-02-13 03:40:38,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2023-02-13 03:40:38,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:38,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2023-02-13 03:40:38,464 INFO L242 hiAutomatonCegarLoop]: Abstraction has 7 states and 10 transitions. [2023-02-13 03:40:38,464 INFO L426 stractBuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2023-02-13 03:40:38,464 INFO L333 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-02-13 03:40:38,464 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2023-02-13 03:40:38,465 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-13 03:40:38,465 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:40:38,465 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:40:38,465 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-02-13 03:40:38,465 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-13 03:40:38,465 INFO L733 eck$LassoCheckResult]: Stem: 40#ULTIMATE.startENTRY [37] ULTIMATE.startENTRY-->L15-2: Formula: (= |v_ULTIMATE.start_main_~c~0#1_10| 1) InVars {} OutVars{ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_8|, ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_10|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_4|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|} AuxVars[] AssignedVars[ULTIMATE.start_main_~n~0#1, ULTIMATE.start_main_~c~0#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_#t~nondet0#1] 41#L15-2 [32] L15-2-->L15: Formula: (< 0 |v_ULTIMATE.start_main_~c~0#1_7|) InVars {ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_7|} OutVars{ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_7|} AuxVars[] AssignedVars[] 42#L15 [26] L15-->L15-2: Formula: (and (< 100 |v_ULTIMATE.start_main_~n~0#1_7|) (= (+ |v_ULTIMATE.start_main_~n~0#1_7| (- 10)) |v_ULTIMATE.start_main_~n~0#1_6|) (= |v_ULTIMATE.start_main_~c~0#1_8| (+ (- 1) |v_ULTIMATE.start_main_~c~0#1_9|))) InVars {ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_7|, ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_9|} OutVars{ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_6|, ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_8|} AuxVars[] AssignedVars[ULTIMATE.start_main_~n~0#1, ULTIMATE.start_main_~c~0#1] 43#L15-2 [2023-02-13 03:40:38,465 INFO L735 eck$LassoCheckResult]: Loop: 43#L15-2 [32] L15-2-->L15: Formula: (< 0 |v_ULTIMATE.start_main_~c~0#1_7|) InVars {ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_7|} OutVars{ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_7|} AuxVars[] AssignedVars[] 46#L15 [36] L15-->L15-2: Formula: (and (= |v_ULTIMATE.start_main_~c~0#1_1| (+ |v_ULTIMATE.start_main_~c~0#1_2| 1)) (= (+ |v_ULTIMATE.start_main_~n~0#1_2| 11) |v_ULTIMATE.start_main_~n~0#1_1|) (>= 100 |v_ULTIMATE.start_main_~n~0#1_2|)) InVars {ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_2|, ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_2|} OutVars{ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_1|, ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_~n~0#1, ULTIMATE.start_main_~c~0#1] 43#L15-2 [2023-02-13 03:40:38,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:38,466 INFO L85 PathProgramCache]: Analyzing trace with hash 66366, now seen corresponding path program 1 times [2023-02-13 03:40:38,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:38,466 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946017294] [2023-02-13 03:40:38,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:38,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:38,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:38,469 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:38,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:38,472 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:38,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:38,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1989, now seen corresponding path program 2 times [2023-02-13 03:40:38,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:38,472 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535348438] [2023-02-13 03:40:38,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:38,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:38,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:38,475 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:38,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:38,477 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:38,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:38,477 INFO L85 PathProgramCache]: Analyzing trace with hash 63778754, now seen corresponding path program 1 times [2023-02-13 03:40:38,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:38,477 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425258037] [2023-02-13 03:40:38,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:38,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:38,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:38,501 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 03:40:38,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-13 03:40:38,501 INFO L335 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425258037] [2023-02-13 03:40:38,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425258037] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-13 03:40:38,501 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-13 03:40:38,502 ERROR L191 FreeRefinementEngine]: {52#true} [54#(<= |ULTIMATE.start_main_~c~0#1| 1), 54#(<= |ULTIMATE.start_main_~c~0#1| 1), 55#(<= |ULTIMATE.start_main_~c~0#1| 0), 53#false] {53#false} [2023-02-13 03:40:38,502 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-13 03:40:38,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508225686] [2023-02-13 03:40:38,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-13 03:40:38,517 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:38,518 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:38,518 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:38,518 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:38,518 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-13 03:40:38,518 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:38,518 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:38,518 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:38,518 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2023-02-13 03:40:38,518 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:38,518 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:38,519 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:38,521 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:38,525 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:38,527 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:38,551 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:38,551 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-13 03:40:38,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:38,551 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:38,556 INFO L229 MonitoredProcess]: Starting monitored process 10 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:38,558 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:38,558 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:38,562 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-02-13 03:40:38,567 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:38,567 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:38,586 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2023-02-13 03:40:38,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:38,587 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:38,587 INFO L229 MonitoredProcess]: Starting monitored process 11 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:38,590 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-02-13 03:40:38,590 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:38,590 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:38,612 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2023-02-13 03:40:38,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:38,613 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:38,613 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 03:40:38,615 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 03:40:38,615 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-13 03:40:38,615 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:38,628 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:38,628 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0#1=1} Honda state: {ULTIMATE.start_main_~c~0#1=1} Generalized eigenvectors: [{ULTIMATE.start_main_~c~0#1=1}, {ULTIMATE.start_main_~c~0#1=0}, {ULTIMATE.start_main_~c~0#1=0}] Lambdas: [1, 0, 0] Nus: [0, 0] [2023-02-13 03:40:38,663 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 03:40:38,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:38,663 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:38,664 INFO L229 MonitoredProcess]: Starting monitored process 13 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:38,666 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-02-13 03:40:38,666 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:38,666 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:38,674 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:38,674 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:38,690 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 03:40:38,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:38,690 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:38,691 INFO L229 MonitoredProcess]: Starting monitored process 14 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:38,692 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-02-13 03:40:38,693 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:38,693 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:38,727 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2023-02-13 03:40:38,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:38,728 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:38,728 INFO L229 MonitoredProcess]: Starting monitored process 15 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:38,730 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-02-13 03:40:38,731 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-13 03:40:38,731 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:38,778 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-13 03:40:38,780 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2023-02-13 03:40:38,780 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:38,780 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:38,780 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:38,780 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:38,780 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-13 03:40:38,780 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:38,780 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:38,781 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:38,781 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2023-02-13 03:40:38,781 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:38,781 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:38,781 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:38,785 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:38,792 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:38,796 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:38,842 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:38,843 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-13 03:40:38,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:38,844 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:38,845 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 03:40:38,848 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 03:40:38,849 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:38,858 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:38,859 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:38,859 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:38,859 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:38,864 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:40:38,864 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:40:38,870 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:40:38,909 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 03:40:38,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:38,910 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:38,911 INFO L229 MonitoredProcess]: Starting monitored process 17 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:38,912 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-02-13 03:40:38,913 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:38,917 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:38,917 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:40:38,918 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:38,918 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:38,918 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:38,919 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:40:38,919 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:40:38,922 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:40:38,939 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2023-02-13 03:40:38,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:38,939 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:38,940 INFO L229 MonitoredProcess]: Starting monitored process 18 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:38,941 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-02-13 03:40:38,942 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:38,948 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:38,948 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:38,948 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:38,949 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:38,953 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:40:38,953 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:40:38,959 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:40:38,979 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2023-02-13 03:40:38,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:38,980 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:38,982 INFO L229 MonitoredProcess]: Starting monitored process 19 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:38,983 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-02-13 03:40:38,984 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:38,994 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:38,994 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:40:38,995 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:38,995 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:38,995 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:38,997 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:40:38,997 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:40:39,005 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-13 03:40:39,009 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-13 03:40:39,009 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-13 03:40:39,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:39,009 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:39,010 INFO L229 MonitoredProcess]: Starting monitored process 20 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:39,013 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-02-13 03:40:39,013 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-13 03:40:39,014 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-13 03:40:39,014 INFO L513 LassoAnalysis]: Proved termination. [2023-02-13 03:40:39,015 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0#1) = -2*ULTIMATE.start_main_~n~0#1 + 211 Supporting invariants [] [2023-02-13 03:40:39,046 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2023-02-13 03:40:39,048 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-13 03:40:39,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:39,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:39,069 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-13 03:40:39,069 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:39,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:39,078 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-13 03:40:39,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:39,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 03:40:39,086 INFO L100 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization [2023-02-13 03:40:39,086 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-02-13 03:40:39,087 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:39,100 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 9 states and 13 transitions. Complement of second has 4 states. [2023-02-13 03:40:39,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-02-13 03:40:39,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:39,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2023-02-13 03:40:39,103 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 3 letters. Loop has 2 letters. [2023-02-13 03:40:39,103 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:39,103 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 2 letters. [2023-02-13 03:40:39,103 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:39,103 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 3 letters. Loop has 4 letters. [2023-02-13 03:40:39,104 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:39,105 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 13 transitions. [2023-02-13 03:40:39,106 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-13 03:40:39,106 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 9 states and 13 transitions. [2023-02-13 03:40:39,106 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2023-02-13 03:40:39,107 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2023-02-13 03:40:39,107 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 13 transitions. [2023-02-13 03:40:39,107 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-13 03:40:39,107 INFO L220 hiAutomatonCegarLoop]: Abstraction has 9 states and 13 transitions. [2023-02-13 03:40:39,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 13 transitions. [2023-02-13 03:40:39,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 5. [2023-02-13 03:40:39,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:39,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 7 transitions. [2023-02-13 03:40:39,109 INFO L242 hiAutomatonCegarLoop]: Abstraction has 5 states and 7 transitions. [2023-02-13 03:40:39,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-13 03:40:39,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-13 03:40:39,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-02-13 03:40:39,114 INFO L87 Difference]: Start difference. First operand 5 states and 7 transitions. Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:39,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-13 03:40:39,132 INFO L93 Difference]: Finished difference Result 9 states and 11 transitions. [2023-02-13 03:40:39,132 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 11 transitions. [2023-02-13 03:40:39,132 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-13 03:40:39,132 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 7 states and 9 transitions. [2023-02-13 03:40:39,133 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2023-02-13 03:40:39,133 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2023-02-13 03:40:39,133 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 9 transitions. [2023-02-13 03:40:39,133 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-13 03:40:39,133 INFO L220 hiAutomatonCegarLoop]: Abstraction has 7 states and 9 transitions. [2023-02-13 03:40:39,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 9 transitions. [2023-02-13 03:40:39,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 6. [2023-02-13 03:40:39,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:39,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 8 transitions. [2023-02-13 03:40:39,134 INFO L242 hiAutomatonCegarLoop]: Abstraction has 6 states and 8 transitions. [2023-02-13 03:40:39,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-13 03:40:39,137 INFO L426 stractBuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2023-02-13 03:40:39,138 INFO L333 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-02-13 03:40:39,138 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 8 transitions. [2023-02-13 03:40:39,139 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-13 03:40:39,139 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:40:39,139 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:40:39,140 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1] [2023-02-13 03:40:39,140 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-13 03:40:39,141 INFO L733 eck$LassoCheckResult]: Stem: 105#ULTIMATE.startENTRY [37] ULTIMATE.startENTRY-->L15-2: Formula: (= |v_ULTIMATE.start_main_~c~0#1_10| 1) InVars {} OutVars{ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_8|, ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_10|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_4|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|} AuxVars[] AssignedVars[ULTIMATE.start_main_~n~0#1, ULTIMATE.start_main_~c~0#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_#t~nondet0#1] 106#L15-2 [32] L15-2-->L15: Formula: (< 0 |v_ULTIMATE.start_main_~c~0#1_7|) InVars {ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_7|} OutVars{ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_7|} AuxVars[] AssignedVars[] 109#L15 [36] L15-->L15-2: Formula: (and (= |v_ULTIMATE.start_main_~c~0#1_1| (+ |v_ULTIMATE.start_main_~c~0#1_2| 1)) (= (+ |v_ULTIMATE.start_main_~n~0#1_2| 11) |v_ULTIMATE.start_main_~n~0#1_1|) (>= 100 |v_ULTIMATE.start_main_~n~0#1_2|)) InVars {ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_2|, ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_2|} OutVars{ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_1|, ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_~n~0#1, ULTIMATE.start_main_~c~0#1] 110#L15-2 [32] L15-2-->L15: Formula: (< 0 |v_ULTIMATE.start_main_~c~0#1_7|) InVars {ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_7|} OutVars{ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_7|} AuxVars[] AssignedVars[] 107#L15 [2023-02-13 03:40:39,141 INFO L735 eck$LassoCheckResult]: Loop: 107#L15 [26] L15-->L15-2: Formula: (and (< 100 |v_ULTIMATE.start_main_~n~0#1_7|) (= (+ |v_ULTIMATE.start_main_~n~0#1_7| (- 10)) |v_ULTIMATE.start_main_~n~0#1_6|) (= |v_ULTIMATE.start_main_~c~0#1_8| (+ (- 1) |v_ULTIMATE.start_main_~c~0#1_9|))) InVars {ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_7|, ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_9|} OutVars{ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_6|, ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_8|} AuxVars[] AssignedVars[ULTIMATE.start_main_~n~0#1, ULTIMATE.start_main_~c~0#1] 108#L15-2 [32] L15-2-->L15: Formula: (< 0 |v_ULTIMATE.start_main_~c~0#1_7|) InVars {ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_7|} OutVars{ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_7|} AuxVars[] AssignedVars[] 107#L15 [2023-02-13 03:40:39,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:39,143 INFO L85 PathProgramCache]: Analyzing trace with hash 2057688, now seen corresponding path program 2 times [2023-02-13 03:40:39,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:39,143 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997924817] [2023-02-13 03:40:39,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:39,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:39,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:39,154 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:39,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:39,160 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:39,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:39,161 INFO L85 PathProgramCache]: Analyzing trace with hash 1799, now seen corresponding path program 1 times [2023-02-13 03:40:39,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:39,161 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804841508] [2023-02-13 03:40:39,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:39,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:39,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:39,166 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:39,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:39,169 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:39,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:39,170 INFO L85 PathProgramCache]: Analyzing trace with hash 1977439006, now seen corresponding path program 2 times [2023-02-13 03:40:39,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:39,170 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979490069] [2023-02-13 03:40:39,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:39,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:39,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:39,176 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:39,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:39,179 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:39,190 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:39,191 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:39,191 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:39,191 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:39,191 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-13 03:40:39,191 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:39,191 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:39,191 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:39,191 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2023-02-13 03:40:39,191 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:39,191 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:39,192 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:39,196 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:39,198 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:39,201 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:39,228 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:39,228 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-13 03:40:39,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:39,229 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:39,229 INFO L229 MonitoredProcess]: Starting monitored process 21 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:39,232 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2023-02-13 03:40:39,232 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:39,232 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:39,239 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:39,239 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:39,254 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2023-02-13 03:40:39,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:39,254 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:39,255 INFO L229 MonitoredProcess]: Starting monitored process 22 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:39,256 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-02-13 03:40:39,256 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:39,256 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:39,288 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2023-02-13 03:40:39,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:39,289 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:39,290 INFO L229 MonitoredProcess]: Starting monitored process 23 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:39,291 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2023-02-13 03:40:39,291 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-13 03:40:39,291 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:39,359 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-13 03:40:39,361 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2023-02-13 03:40:39,362 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:39,362 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:39,362 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:39,363 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:39,363 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-13 03:40:39,363 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:39,363 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:39,364 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:39,364 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2023-02-13 03:40:39,364 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:39,364 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:39,366 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:39,374 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:39,377 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:39,385 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:39,433 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:39,433 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-13 03:40:39,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:39,434 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:39,434 INFO L229 MonitoredProcess]: Starting monitored process 24 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:39,436 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2023-02-13 03:40:39,437 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:39,442 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:39,442 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:40:39,442 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:39,443 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:39,443 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:39,443 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:40:39,444 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:40:39,446 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-13 03:40:39,450 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-13 03:40:39,450 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-13 03:40:39,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:39,450 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:39,455 INFO L229 MonitoredProcess]: Starting monitored process 25 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:39,459 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2023-02-13 03:40:39,460 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-13 03:40:39,460 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-13 03:40:39,460 INFO L513 LassoAnalysis]: Proved termination. [2023-02-13 03:40:39,460 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~c~0#1) = 1*ULTIMATE.start_main_~c~0#1 Supporting invariants [] [2023-02-13 03:40:39,487 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2023-02-13 03:40:39,488 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-13 03:40:39,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:39,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:39,503 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-13 03:40:39,504 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:39,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:39,509 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-13 03:40:39,510 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:39,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 03:40:39,532 INFO L100 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2023-02-13 03:40:39,533 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-02-13 03:40:39,533 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 6 states and 8 transitions. cyclomatic complexity: 3 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:39,545 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 6 states and 8 transitions. cyclomatic complexity: 3. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 10 states and 14 transitions. Complement of second has 4 states. [2023-02-13 03:40:39,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-02-13 03:40:39,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:39,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2023-02-13 03:40:39,546 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 2 letters. [2023-02-13 03:40:39,546 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:39,546 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 6 letters. Loop has 2 letters. [2023-02-13 03:40:39,546 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:39,546 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 4 letters. [2023-02-13 03:40:39,546 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:39,547 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 14 transitions. [2023-02-13 03:40:39,547 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2023-02-13 03:40:39,547 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 9 states and 12 transitions. [2023-02-13 03:40:39,547 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2023-02-13 03:40:39,547 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3 [2023-02-13 03:40:39,547 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 12 transitions. [2023-02-13 03:40:39,547 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-13 03:40:39,548 INFO L220 hiAutomatonCegarLoop]: Abstraction has 9 states and 12 transitions. [2023-02-13 03:40:39,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 12 transitions. [2023-02-13 03:40:39,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 7. [2023-02-13 03:40:39,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:39,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2023-02-13 03:40:39,548 INFO L242 hiAutomatonCegarLoop]: Abstraction has 7 states and 9 transitions. [2023-02-13 03:40:39,548 INFO L426 stractBuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2023-02-13 03:40:39,548 INFO L333 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-02-13 03:40:39,549 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. [2023-02-13 03:40:39,549 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-02-13 03:40:39,549 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:40:39,549 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:40:39,549 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1] [2023-02-13 03:40:39,549 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1] [2023-02-13 03:40:39,549 INFO L733 eck$LassoCheckResult]: Stem: 158#ULTIMATE.startENTRY [37] ULTIMATE.startENTRY-->L15-2: Formula: (= |v_ULTIMATE.start_main_~c~0#1_10| 1) InVars {} OutVars{ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_8|, ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_10|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_4|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|} AuxVars[] AssignedVars[ULTIMATE.start_main_~n~0#1, ULTIMATE.start_main_~c~0#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_#t~nondet0#1] 159#L15-2 [32] L15-2-->L15: Formula: (< 0 |v_ULTIMATE.start_main_~c~0#1_7|) InVars {ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_7|} OutVars{ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_7|} AuxVars[] AssignedVars[] 162#L15 [36] L15-->L15-2: Formula: (and (= |v_ULTIMATE.start_main_~c~0#1_1| (+ |v_ULTIMATE.start_main_~c~0#1_2| 1)) (= (+ |v_ULTIMATE.start_main_~n~0#1_2| 11) |v_ULTIMATE.start_main_~n~0#1_1|) (>= 100 |v_ULTIMATE.start_main_~n~0#1_2|)) InVars {ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_2|, ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_2|} OutVars{ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_1|, ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_~n~0#1, ULTIMATE.start_main_~c~0#1] 163#L15-2 [32] L15-2-->L15: Formula: (< 0 |v_ULTIMATE.start_main_~c~0#1_7|) InVars {ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_7|} OutVars{ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_7|} AuxVars[] AssignedVars[] 160#L15 [2023-02-13 03:40:39,549 INFO L735 eck$LassoCheckResult]: Loop: 160#L15 [26] L15-->L15-2: Formula: (and (< 100 |v_ULTIMATE.start_main_~n~0#1_7|) (= (+ |v_ULTIMATE.start_main_~n~0#1_7| (- 10)) |v_ULTIMATE.start_main_~n~0#1_6|) (= |v_ULTIMATE.start_main_~c~0#1_8| (+ (- 1) |v_ULTIMATE.start_main_~c~0#1_9|))) InVars {ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_7|, ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_9|} OutVars{ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_6|, ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_8|} AuxVars[] AssignedVars[ULTIMATE.start_main_~n~0#1, ULTIMATE.start_main_~c~0#1] 161#L15-2 [32] L15-2-->L15: Formula: (< 0 |v_ULTIMATE.start_main_~c~0#1_7|) InVars {ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_7|} OutVars{ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_7|} AuxVars[] AssignedVars[] 162#L15 [36] L15-->L15-2: Formula: (and (= |v_ULTIMATE.start_main_~c~0#1_1| (+ |v_ULTIMATE.start_main_~c~0#1_2| 1)) (= (+ |v_ULTIMATE.start_main_~n~0#1_2| 11) |v_ULTIMATE.start_main_~n~0#1_1|) (>= 100 |v_ULTIMATE.start_main_~n~0#1_2|)) InVars {ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_2|, ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_2|} OutVars{ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_1|, ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_~n~0#1, ULTIMATE.start_main_~c~0#1] 163#L15-2 [32] L15-2-->L15: Formula: (< 0 |v_ULTIMATE.start_main_~c~0#1_7|) InVars {ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_7|} OutVars{ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_7|} AuxVars[] AssignedVars[] 160#L15 [2023-02-13 03:40:39,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:39,550 INFO L85 PathProgramCache]: Analyzing trace with hash 2057688, now seen corresponding path program 3 times [2023-02-13 03:40:39,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:39,550 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964736027] [2023-02-13 03:40:39,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:39,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:39,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:39,557 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:39,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:39,562 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:39,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:39,563 INFO L85 PathProgramCache]: Analyzing trace with hash 1729987, now seen corresponding path program 1 times [2023-02-13 03:40:39,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:39,563 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978740522] [2023-02-13 03:40:39,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:39,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:39,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:39,568 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:39,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:39,572 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:39,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:39,572 INFO L85 PathProgramCache]: Analyzing trace with hash 1943341082, now seen corresponding path program 3 times [2023-02-13 03:40:39,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:39,573 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517285227] [2023-02-13 03:40:39,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:39,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:39,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:39,577 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:39,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:39,581 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:39,606 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:39,606 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:39,606 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:39,606 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:39,606 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-13 03:40:39,607 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:39,607 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:39,607 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:39,607 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2023-02-13 03:40:39,607 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:39,607 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:39,608 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:39,611 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:39,613 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:39,614 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:39,633 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:39,633 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-13 03:40:39,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:39,633 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:39,634 INFO L229 MonitoredProcess]: Starting monitored process 26 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:39,636 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2023-02-13 03:40:39,638 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:39,638 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:39,658 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2023-02-13 03:40:39,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:39,658 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:39,659 INFO L229 MonitoredProcess]: Starting monitored process 27 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:39,660 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2023-02-13 03:40:39,660 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-13 03:40:39,660 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:39,715 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-13 03:40:39,717 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2023-02-13 03:40:39,717 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:39,717 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:39,718 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:39,718 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:39,718 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-13 03:40:39,718 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:39,718 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:39,718 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:39,718 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2023-02-13 03:40:39,718 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:39,718 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:39,719 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:39,729 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:39,732 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:39,737 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 03:40:39,787 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:39,787 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-13 03:40:39,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:39,787 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:39,787 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-02-13 03:40:39,789 INFO L229 MonitoredProcess]: Starting monitored process 28 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:39,790 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2023-02-13 03:40:39,791 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:39,794 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:39,794 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:40:39,795 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:39,795 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:39,795 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:39,795 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:40:39,795 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:40:39,805 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-13 03:40:39,805 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2023-02-13 03:40:39,807 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-13 03:40:39,807 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-13 03:40:39,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:39,807 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:39,807 INFO L229 MonitoredProcess]: Starting monitored process 29 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:39,810 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-13 03:40:39,810 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2023-02-13 03:40:39,810 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-13 03:40:39,810 INFO L513 LassoAnalysis]: Proved termination. [2023-02-13 03:40:39,811 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0#1) = -2*ULTIMATE.start_main_~n~0#1 + 221 Supporting invariants [] [2023-02-13 03:40:39,819 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2023-02-13 03:40:39,831 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2023-02-13 03:40:39,832 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-13 03:40:39,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:39,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:39,847 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-13 03:40:39,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:39,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:39,854 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-13 03:40:39,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:39,879 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 03:40:39,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:39,892 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-13 03:40:39,893 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:39,899 INFO L100 LoopCannibalizer]: 4 predicates before loop cannibalization 4 predicates after loop cannibalization [2023-02-13 03:40:39,899 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2023-02-13 03:40:39,899 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 7 states and 9 transitions. cyclomatic complexity: 3 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:39,911 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 7 states and 9 transitions. cyclomatic complexity: 3. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 22 states and 27 transitions. Complement of second has 8 states. [2023-02-13 03:40:39,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-02-13 03:40:39,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:39,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2023-02-13 03:40:39,912 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 4 letters. Loop has 4 letters. [2023-02-13 03:40:39,913 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:39,913 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 8 letters. Loop has 4 letters. [2023-02-13 03:40:39,913 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:39,913 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 4 letters. Loop has 8 letters. [2023-02-13 03:40:39,914 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:39,914 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 27 transitions. [2023-02-13 03:40:39,915 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 14 [2023-02-13 03:40:39,915 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 17 states and 22 transitions. [2023-02-13 03:40:39,915 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2023-02-13 03:40:39,916 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2023-02-13 03:40:39,916 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 22 transitions. [2023-02-13 03:40:39,916 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-13 03:40:39,916 INFO L220 hiAutomatonCegarLoop]: Abstraction has 17 states and 22 transitions. [2023-02-13 03:40:39,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 22 transitions. [2023-02-13 03:40:39,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 14. [2023-02-13 03:40:39,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 13 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:39,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 19 transitions. [2023-02-13 03:40:39,917 INFO L242 hiAutomatonCegarLoop]: Abstraction has 14 states and 19 transitions. [2023-02-13 03:40:39,917 INFO L426 stractBuchiCegarLoop]: Abstraction has 14 states and 19 transitions. [2023-02-13 03:40:39,917 INFO L333 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-02-13 03:40:39,917 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 19 transitions. [2023-02-13 03:40:39,918 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2023-02-13 03:40:39,918 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:40:39,918 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:40:39,918 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1] [2023-02-13 03:40:39,918 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [5, 3, 2] [2023-02-13 03:40:39,918 INFO L733 eck$LassoCheckResult]: Stem: 247#ULTIMATE.startENTRY [37] ULTIMATE.startENTRY-->L15-2: Formula: (= |v_ULTIMATE.start_main_~c~0#1_10| 1) InVars {} OutVars{ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_8|, ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_10|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_4|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|} AuxVars[] AssignedVars[ULTIMATE.start_main_~n~0#1, ULTIMATE.start_main_~c~0#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_#t~nondet0#1] 248#L15-2 [32] L15-2-->L15: Formula: (< 0 |v_ULTIMATE.start_main_~c~0#1_7|) InVars {ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_7|} OutVars{ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_7|} AuxVars[] AssignedVars[] 252#L15 [36] L15-->L15-2: Formula: (and (= |v_ULTIMATE.start_main_~c~0#1_1| (+ |v_ULTIMATE.start_main_~c~0#1_2| 1)) (= (+ |v_ULTIMATE.start_main_~n~0#1_2| 11) |v_ULTIMATE.start_main_~n~0#1_1|) (>= 100 |v_ULTIMATE.start_main_~n~0#1_2|)) InVars {ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_2|, ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_2|} OutVars{ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_1|, ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_~n~0#1, ULTIMATE.start_main_~c~0#1] 254#L15-2 [32] L15-2-->L15: Formula: (< 0 |v_ULTIMATE.start_main_~c~0#1_7|) InVars {ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_7|} OutVars{ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_7|} AuxVars[] AssignedVars[] 249#L15 [2023-02-13 03:40:39,919 INFO L735 eck$LassoCheckResult]: Loop: 249#L15 [26] L15-->L15-2: Formula: (and (< 100 |v_ULTIMATE.start_main_~n~0#1_7|) (= (+ |v_ULTIMATE.start_main_~n~0#1_7| (- 10)) |v_ULTIMATE.start_main_~n~0#1_6|) (= |v_ULTIMATE.start_main_~c~0#1_8| (+ (- 1) |v_ULTIMATE.start_main_~c~0#1_9|))) InVars {ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_7|, ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_9|} OutVars{ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_6|, ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_8|} AuxVars[] AssignedVars[ULTIMATE.start_main_~n~0#1, ULTIMATE.start_main_~c~0#1] 250#L15-2 [32] L15-2-->L15: Formula: (< 0 |v_ULTIMATE.start_main_~c~0#1_7|) InVars {ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_7|} OutVars{ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_7|} AuxVars[] AssignedVars[] 253#L15 [36] L15-->L15-2: Formula: (and (= |v_ULTIMATE.start_main_~c~0#1_1| (+ |v_ULTIMATE.start_main_~c~0#1_2| 1)) (= (+ |v_ULTIMATE.start_main_~n~0#1_2| 11) |v_ULTIMATE.start_main_~n~0#1_1|) (>= 100 |v_ULTIMATE.start_main_~n~0#1_2|)) InVars {ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_2|, ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_2|} OutVars{ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_1|, ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_~n~0#1, ULTIMATE.start_main_~c~0#1] 260#L15-2 [32] L15-2-->L15: Formula: (< 0 |v_ULTIMATE.start_main_~c~0#1_7|) InVars {ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_7|} OutVars{ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_7|} AuxVars[] AssignedVars[] 259#L15 [26] L15-->L15-2: Formula: (and (< 100 |v_ULTIMATE.start_main_~n~0#1_7|) (= (+ |v_ULTIMATE.start_main_~n~0#1_7| (- 10)) |v_ULTIMATE.start_main_~n~0#1_6|) (= |v_ULTIMATE.start_main_~c~0#1_8| (+ (- 1) |v_ULTIMATE.start_main_~c~0#1_9|))) InVars {ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_7|, ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_9|} OutVars{ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_6|, ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_8|} AuxVars[] AssignedVars[ULTIMATE.start_main_~n~0#1, ULTIMATE.start_main_~c~0#1] 258#L15-2 [32] L15-2-->L15: Formula: (< 0 |v_ULTIMATE.start_main_~c~0#1_7|) InVars {ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_7|} OutVars{ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_7|} AuxVars[] AssignedVars[] 257#L15 [26] L15-->L15-2: Formula: (and (< 100 |v_ULTIMATE.start_main_~n~0#1_7|) (= (+ |v_ULTIMATE.start_main_~n~0#1_7| (- 10)) |v_ULTIMATE.start_main_~n~0#1_6|) (= |v_ULTIMATE.start_main_~c~0#1_8| (+ (- 1) |v_ULTIMATE.start_main_~c~0#1_9|))) InVars {ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_7|, ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_9|} OutVars{ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_6|, ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_8|} AuxVars[] AssignedVars[ULTIMATE.start_main_~n~0#1, ULTIMATE.start_main_~c~0#1] 256#L15-2 [32] L15-2-->L15: Formula: (< 0 |v_ULTIMATE.start_main_~c~0#1_7|) InVars {ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_7|} OutVars{ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_7|} AuxVars[] AssignedVars[] 252#L15 [36] L15-->L15-2: Formula: (and (= |v_ULTIMATE.start_main_~c~0#1_1| (+ |v_ULTIMATE.start_main_~c~0#1_2| 1)) (= (+ |v_ULTIMATE.start_main_~n~0#1_2| 11) |v_ULTIMATE.start_main_~n~0#1_1|) (>= 100 |v_ULTIMATE.start_main_~n~0#1_2|)) InVars {ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_2|, ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_2|} OutVars{ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_1|, ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_~n~0#1, ULTIMATE.start_main_~c~0#1] 254#L15-2 [32] L15-2-->L15: Formula: (< 0 |v_ULTIMATE.start_main_~c~0#1_7|) InVars {ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_7|} OutVars{ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_7|} AuxVars[] AssignedVars[] 249#L15 [2023-02-13 03:40:39,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:39,919 INFO L85 PathProgramCache]: Analyzing trace with hash 2057688, now seen corresponding path program 4 times [2023-02-13 03:40:39,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:39,919 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187434425] [2023-02-13 03:40:39,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:39,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:39,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:39,923 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:39,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:39,927 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:39,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:39,927 INFO L85 PathProgramCache]: Analyzing trace with hash 1401357835, now seen corresponding path program 2 times [2023-02-13 03:40:39,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:39,928 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514700717] [2023-02-13 03:40:39,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:39,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:39,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:39,938 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:39,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:39,946 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:39,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:39,946 INFO L85 PathProgramCache]: Analyzing trace with hash 1065241378, now seen corresponding path program 4 times [2023-02-13 03:40:39,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:39,947 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442840438] [2023-02-13 03:40:39,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:39,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:39,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:39,967 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 22 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-02-13 03:40:39,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-13 03:40:39,968 INFO L335 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442840438] [2023-02-13 03:40:39,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442840438] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-13 03:40:39,968 INFO L335 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1221263393] [2023-02-13 03:40:39,968 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-13 03:40:39,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-13 03:40:39,968 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:39,969 INFO L229 MonitoredProcess]: Starting monitored process 30 with /export/starexec/sandbox/solver/Ultimate/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-13 03:40:39,970 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2023-02-13 03:40:39,985 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-13 03:40:39,985 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-13 03:40:39,985 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core [2023-02-13 03:40:39,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:39,999 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 22 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-02-13 03:40:39,999 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-13 03:40:40,017 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 22 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-02-13 03:40:40,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1221263393] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-13 03:40:40,018 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-13 03:40:40,018 ERROR L197 FreeRefinementEngine]: {266#true} [268#(<= |ULTIMATE.start_main_~c~0#1| 1), 268#(<= |ULTIMATE.start_main_~c~0#1| 1), 269#(<= |ULTIMATE.start_main_~c~0#1| 2), 269#(<= |ULTIMATE.start_main_~c~0#1| 2), 268#(<= |ULTIMATE.start_main_~c~0#1| 1), 268#(<= |ULTIMATE.start_main_~c~0#1| 1), 269#(<= |ULTIMATE.start_main_~c~0#1| 2), 269#(<= |ULTIMATE.start_main_~c~0#1| 2), 268#(<= |ULTIMATE.start_main_~c~0#1| 1), 268#(<= |ULTIMATE.start_main_~c~0#1| 1), 270#(<= |ULTIMATE.start_main_~c~0#1| 0), 267#false, 267#false] {267#false} [2023-02-13 03:40:40,018 ERROR L197 FreeRefinementEngine]: {266#true} [268#(<= |ULTIMATE.start_main_~c~0#1| 1), 268#(<= |ULTIMATE.start_main_~c~0#1| 1), 269#(<= |ULTIMATE.start_main_~c~0#1| 2), 269#(<= |ULTIMATE.start_main_~c~0#1| 2), 268#(<= |ULTIMATE.start_main_~c~0#1| 1), 268#(<= |ULTIMATE.start_main_~c~0#1| 1), 269#(<= |ULTIMATE.start_main_~c~0#1| 2), 269#(<= |ULTIMATE.start_main_~c~0#1| 2), 268#(<= |ULTIMATE.start_main_~c~0#1| 1), 268#(<= |ULTIMATE.start_main_~c~0#1| 1), 270#(<= |ULTIMATE.start_main_~c~0#1| 0), 267#false, 267#false] {267#false} [2023-02-13 03:40:40,018 ERROR L197 FreeRefinementEngine]: {266#true} [268#(<= |ULTIMATE.start_main_~c~0#1| 1), 268#(<= |ULTIMATE.start_main_~c~0#1| 1), 269#(<= |ULTIMATE.start_main_~c~0#1| 2), 269#(<= |ULTIMATE.start_main_~c~0#1| 2), 268#(<= |ULTIMATE.start_main_~c~0#1| 1), 268#(<= |ULTIMATE.start_main_~c~0#1| 1), 269#(<= |ULTIMATE.start_main_~c~0#1| 2), 269#(<= |ULTIMATE.start_main_~c~0#1| 2), 268#(<= |ULTIMATE.start_main_~c~0#1| 1), 268#(<= |ULTIMATE.start_main_~c~0#1| 1), 270#(<= |ULTIMATE.start_main_~c~0#1| 0), 267#false, 267#false] {267#false} [2023-02-13 03:40:40,018 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 4 [2023-02-13 03:40:40,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179514056] [2023-02-13 03:40:40,018 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-13 03:40:40,074 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:40,074 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:40,074 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:40,074 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:40,074 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-13 03:40:40,074 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:40,074 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:40,074 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:40,074 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration5_Loop [2023-02-13 03:40:40,075 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:40,075 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:40,075 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:40,078 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:40,080 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:40,084 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:40,122 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:40,122 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-13 03:40:40,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:40,122 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:40,123 INFO L229 MonitoredProcess]: Starting monitored process 31 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:40,123 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2023-02-13 03:40:40,124 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:40,124 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:40,136 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:40,136 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_9=1} Honda state: {v_rep~unnamed0~0~true_9=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:40,157 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2023-02-13 03:40:40,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:40,158 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:40,159 INFO L229 MonitoredProcess]: Starting monitored process 32 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:40,160 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2023-02-13 03:40:40,160 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:40,160 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:40,175 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:40,175 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_9=0} Honda state: {v_rep~unnamed0~0~false_9=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:40,199 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2023-02-13 03:40:40,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:40,200 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:40,201 INFO L229 MonitoredProcess]: Starting monitored process 33 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:40,202 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2023-02-13 03:40:40,203 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:40,203 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:40,235 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2023-02-13 03:40:40,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:40,236 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:40,237 INFO L229 MonitoredProcess]: Starting monitored process 34 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:40,238 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2023-02-13 03:40:40,239 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-13 03:40:40,240 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:40,288 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-13 03:40:40,290 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2023-02-13 03:40:40,290 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:40,290 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:40,291 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:40,291 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:40,291 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-13 03:40:40,291 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:40,291 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:40,292 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:40,292 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration5_Loop [2023-02-13 03:40:40,292 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:40,292 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:40,294 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:40,298 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:40,304 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:40,307 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:40,363 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:40,364 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-13 03:40:40,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:40,365 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:40,366 INFO L229 MonitoredProcess]: Starting monitored process 35 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:40,367 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2023-02-13 03:40:40,368 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:40,378 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:40,379 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:40,379 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:40,379 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:40,382 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:40:40,382 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:40:40,386 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:40:40,403 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2023-02-13 03:40:40,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:40,404 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:40,405 INFO L229 MonitoredProcess]: Starting monitored process 36 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:40,406 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2023-02-13 03:40:40,409 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:40,418 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:40,418 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:40:40,418 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:40,418 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:40,418 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:40,419 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:40:40,419 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:40:40,423 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-13 03:40:40,427 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-13 03:40:40,427 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-13 03:40:40,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:40,428 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:40,429 INFO L229 MonitoredProcess]: Starting monitored process 37 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:40,432 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2023-02-13 03:40:40,432 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-13 03:40:40,432 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-13 03:40:40,432 INFO L513 LassoAnalysis]: Proved termination. [2023-02-13 03:40:40,432 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~c~0#1) = 1*ULTIMATE.start_main_~c~0#1 Supporting invariants [] [2023-02-13 03:40:40,465 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2023-02-13 03:40:40,465 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-13 03:40:40,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:40,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:40,481 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-13 03:40:40,482 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:40,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:40,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 8 conjunts are in the unsatisfiable core [2023-02-13 03:40:40,496 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:40,580 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-02-13 03:40:40,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:40,607 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 8 conjunts are in the unsatisfiable core [2023-02-13 03:40:40,609 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:40,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:40,724 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 8 conjunts are in the unsatisfiable core [2023-02-13 03:40:40,726 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:40,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:40,799 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 8 conjunts are in the unsatisfiable core [2023-02-13 03:40:40,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:40,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:40,865 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 8 conjunts are in the unsatisfiable core [2023-02-13 03:40:40,866 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:40,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:40,934 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 8 conjunts are in the unsatisfiable core [2023-02-13 03:40:40,936 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:41,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:41,010 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 8 conjunts are in the unsatisfiable core [2023-02-13 03:40:41,010 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:41,058 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2023-02-13 03:40:41,092 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2023-02-13 03:40:41,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:41,121 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 8 conjunts are in the unsatisfiable core [2023-02-13 03:40:41,122 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:41,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:41,153 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 8 conjunts are in the unsatisfiable core [2023-02-13 03:40:41,155 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:41,174 INFO L100 LoopCannibalizer]: 5 predicates before loop cannibalization 8 predicates after loop cannibalization [2023-02-13 03:40:41,174 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 8 loop predicates [2023-02-13 03:40:41,175 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 14 states and 19 transitions. cyclomatic complexity: 6 Second operand has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:41,308 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 14 states and 19 transitions. cyclomatic complexity: 6. Second operand has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 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 123 states and 168 transitions. Complement of second has 29 states. [2023-02-13 03:40:41,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 1 stem states 5 non-accepting loop states 2 accepting loop states [2023-02-13 03:40:41,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:41,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 18 transitions. [2023-02-13 03:40:41,310 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 18 transitions. Stem has 4 letters. Loop has 10 letters. [2023-02-13 03:40:41,311 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:41,311 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 18 transitions. Stem has 14 letters. Loop has 10 letters. [2023-02-13 03:40:41,312 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:41,312 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 18 transitions. Stem has 4 letters. Loop has 20 letters. [2023-02-13 03:40:41,313 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:41,314 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 123 states and 168 transitions. [2023-02-13 03:40:41,317 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 38 [2023-02-13 03:40:41,318 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 123 states to 68 states and 90 transitions. [2023-02-13 03:40:41,319 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2023-02-13 03:40:41,319 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2023-02-13 03:40:41,319 INFO L73 IsDeterministic]: Start isDeterministic. Operand 68 states and 90 transitions. [2023-02-13 03:40:41,319 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-13 03:40:41,319 INFO L220 hiAutomatonCegarLoop]: Abstraction has 68 states and 90 transitions. [2023-02-13 03:40:41,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states and 90 transitions. [2023-02-13 03:40:41,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 31. [2023-02-13 03:40:41,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 30 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:41,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 42 transitions. [2023-02-13 03:40:41,322 INFO L242 hiAutomatonCegarLoop]: Abstraction has 31 states and 42 transitions. [2023-02-13 03:40:41,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-13 03:40:41,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-13 03:40:41,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-02-13 03:40:41,323 INFO L87 Difference]: Start difference. First operand 31 states and 42 transitions. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:41,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-13 03:40:41,338 INFO L93 Difference]: Finished difference Result 52 states and 69 transitions. [2023-02-13 03:40:41,338 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 52 states and 69 transitions. [2023-02-13 03:40:41,341 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 29 [2023-02-13 03:40:41,342 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 52 states to 40 states and 55 transitions. [2023-02-13 03:40:41,342 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2023-02-13 03:40:41,343 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2023-02-13 03:40:41,343 INFO L73 IsDeterministic]: Start isDeterministic. Operand 40 states and 55 transitions. [2023-02-13 03:40:41,343 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-13 03:40:41,343 INFO L220 hiAutomatonCegarLoop]: Abstraction has 40 states and 55 transitions. [2023-02-13 03:40:41,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states and 55 transitions. [2023-02-13 03:40:41,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 31. [2023-02-13 03:40:41,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 30 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:41,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 42 transitions. [2023-02-13 03:40:41,348 INFO L242 hiAutomatonCegarLoop]: Abstraction has 31 states and 42 transitions. [2023-02-13 03:40:41,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-13 03:40:41,350 INFO L426 stractBuchiCegarLoop]: Abstraction has 31 states and 42 transitions. [2023-02-13 03:40:41,351 INFO L333 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2023-02-13 03:40:41,351 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 42 transitions. [2023-02-13 03:40:41,352 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 29 [2023-02-13 03:40:41,352 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:40:41,352 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:40:41,353 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1] [2023-02-13 03:40:41,353 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [6, 3, 3] [2023-02-13 03:40:41,354 INFO L733 eck$LassoCheckResult]: Stem: 873#ULTIMATE.startENTRY [37] ULTIMATE.startENTRY-->L15-2: Formula: (= |v_ULTIMATE.start_main_~c~0#1_10| 1) InVars {} OutVars{ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_8|, ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_10|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_4|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|} AuxVars[] AssignedVars[ULTIMATE.start_main_~n~0#1, ULTIMATE.start_main_~c~0#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_#t~nondet0#1] 874#L15-2 [32] L15-2-->L15: Formula: (< 0 |v_ULTIMATE.start_main_~c~0#1_7|) InVars {ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_7|} OutVars{ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_7|} AuxVars[] AssignedVars[] 886#L15 [36] L15-->L15-2: Formula: (and (= |v_ULTIMATE.start_main_~c~0#1_1| (+ |v_ULTIMATE.start_main_~c~0#1_2| 1)) (= (+ |v_ULTIMATE.start_main_~n~0#1_2| 11) |v_ULTIMATE.start_main_~n~0#1_1|) (>= 100 |v_ULTIMATE.start_main_~n~0#1_2|)) InVars {ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_2|, ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_2|} OutVars{ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_1|, ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_~n~0#1, ULTIMATE.start_main_~c~0#1] 883#L15-2 [32] L15-2-->L15: Formula: (< 0 |v_ULTIMATE.start_main_~c~0#1_7|) InVars {ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_7|} OutVars{ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_7|} AuxVars[] AssignedVars[] 875#L15 [2023-02-13 03:40:41,354 INFO L735 eck$LassoCheckResult]: Loop: 875#L15 [26] L15-->L15-2: Formula: (and (< 100 |v_ULTIMATE.start_main_~n~0#1_7|) (= (+ |v_ULTIMATE.start_main_~n~0#1_7| (- 10)) |v_ULTIMATE.start_main_~n~0#1_6|) (= |v_ULTIMATE.start_main_~c~0#1_8| (+ (- 1) |v_ULTIMATE.start_main_~c~0#1_9|))) InVars {ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_7|, ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_9|} OutVars{ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_6|, ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_8|} AuxVars[] AssignedVars[ULTIMATE.start_main_~n~0#1, ULTIMATE.start_main_~c~0#1] 876#L15-2 [32] L15-2-->L15: Formula: (< 0 |v_ULTIMATE.start_main_~c~0#1_7|) InVars {ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_7|} OutVars{ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_7|} AuxVars[] AssignedVars[] 881#L15 [36] L15-->L15-2: Formula: (and (= |v_ULTIMATE.start_main_~c~0#1_1| (+ |v_ULTIMATE.start_main_~c~0#1_2| 1)) (= (+ |v_ULTIMATE.start_main_~n~0#1_2| 11) |v_ULTIMATE.start_main_~n~0#1_1|) (>= 100 |v_ULTIMATE.start_main_~n~0#1_2|)) InVars {ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_2|, ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_2|} OutVars{ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_1|, ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_~n~0#1, ULTIMATE.start_main_~c~0#1] 901#L15-2 [32] L15-2-->L15: Formula: (< 0 |v_ULTIMATE.start_main_~c~0#1_7|) InVars {ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_7|} OutVars{ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_7|} AuxVars[] AssignedVars[] 902#L15 [36] L15-->L15-2: Formula: (and (= |v_ULTIMATE.start_main_~c~0#1_1| (+ |v_ULTIMATE.start_main_~c~0#1_2| 1)) (= (+ |v_ULTIMATE.start_main_~n~0#1_2| 11) |v_ULTIMATE.start_main_~n~0#1_1|) (>= 100 |v_ULTIMATE.start_main_~n~0#1_2|)) InVars {ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_2|, ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_2|} OutVars{ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_1|, ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_~n~0#1, ULTIMATE.start_main_~c~0#1] 890#L15-2 [32] L15-2-->L15: Formula: (< 0 |v_ULTIMATE.start_main_~c~0#1_7|) InVars {ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_7|} OutVars{ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_7|} AuxVars[] AssignedVars[] 889#L15 [26] L15-->L15-2: Formula: (and (< 100 |v_ULTIMATE.start_main_~n~0#1_7|) (= (+ |v_ULTIMATE.start_main_~n~0#1_7| (- 10)) |v_ULTIMATE.start_main_~n~0#1_6|) (= |v_ULTIMATE.start_main_~c~0#1_8| (+ (- 1) |v_ULTIMATE.start_main_~c~0#1_9|))) InVars {ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_7|, ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_9|} OutVars{ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_6|, ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_8|} AuxVars[] AssignedVars[ULTIMATE.start_main_~n~0#1, ULTIMATE.start_main_~c~0#1] 888#L15-2 [32] L15-2-->L15: Formula: (< 0 |v_ULTIMATE.start_main_~c~0#1_7|) InVars {ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_7|} OutVars{ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_7|} AuxVars[] AssignedVars[] 887#L15 [26] L15-->L15-2: Formula: (and (< 100 |v_ULTIMATE.start_main_~n~0#1_7|) (= (+ |v_ULTIMATE.start_main_~n~0#1_7| (- 10)) |v_ULTIMATE.start_main_~n~0#1_6|) (= |v_ULTIMATE.start_main_~c~0#1_8| (+ (- 1) |v_ULTIMATE.start_main_~c~0#1_9|))) InVars {ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_7|, ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_9|} OutVars{ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_6|, ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_8|} AuxVars[] AssignedVars[ULTIMATE.start_main_~n~0#1, ULTIMATE.start_main_~c~0#1] 885#L15-2 [32] L15-2-->L15: Formula: (< 0 |v_ULTIMATE.start_main_~c~0#1_7|) InVars {ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_7|} OutVars{ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_7|} AuxVars[] AssignedVars[] 886#L15 [36] L15-->L15-2: Formula: (and (= |v_ULTIMATE.start_main_~c~0#1_1| (+ |v_ULTIMATE.start_main_~c~0#1_2| 1)) (= (+ |v_ULTIMATE.start_main_~n~0#1_2| 11) |v_ULTIMATE.start_main_~n~0#1_1|) (>= 100 |v_ULTIMATE.start_main_~n~0#1_2|)) InVars {ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_2|, ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_2|} OutVars{ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_1|, ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_~n~0#1, ULTIMATE.start_main_~c~0#1] 883#L15-2 [32] L15-2-->L15: Formula: (< 0 |v_ULTIMATE.start_main_~c~0#1_7|) InVars {ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_7|} OutVars{ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_7|} AuxVars[] AssignedVars[] 875#L15 [2023-02-13 03:40:41,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:41,355 INFO L85 PathProgramCache]: Analyzing trace with hash 2057688, now seen corresponding path program 5 times [2023-02-13 03:40:41,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:41,355 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541866085] [2023-02-13 03:40:41,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:41,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:41,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:41,361 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:41,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:41,364 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:41,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:41,365 INFO L85 PathProgramCache]: Analyzing trace with hash -1666914105, now seen corresponding path program 3 times [2023-02-13 03:40:41,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:41,365 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881085338] [2023-02-13 03:40:41,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:41,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:41,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:41,381 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-02-13 03:40:41,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-13 03:40:41,381 INFO L335 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881085338] [2023-02-13 03:40:41,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881085338] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-13 03:40:41,382 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-13 03:40:41,382 ERROR L191 FreeRefinementEngine]: {907#true} [909#(<= 91 |ULTIMATE.start_main_~n~0#1|), 909#(<= 91 |ULTIMATE.start_main_~n~0#1|), 910#(<= 102 |ULTIMATE.start_main_~n~0#1|), 910#(<= 102 |ULTIMATE.start_main_~n~0#1|), 908#false, 908#false, 908#false, 908#false, 908#false, 908#false, 908#false] {908#false} [2023-02-13 03:40:41,382 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-13 03:40:41,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607209833] [2023-02-13 03:40:41,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-13 03:40:41,382 INFO L750 eck$LassoCheckResult]: loop already infeasible [2023-02-13 03:40:41,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-13 03:40:41,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-13 03:40:41,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-02-13 03:40:41,383 INFO L87 Difference]: Start difference. First operand 31 states and 42 transitions. cyclomatic complexity: 12 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:41,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-13 03:40:41,389 INFO L93 Difference]: Finished difference Result 26 states and 32 transitions. [2023-02-13 03:40:41,390 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 32 transitions. [2023-02-13 03:40:41,390 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-13 03:40:41,390 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 0 states and 0 transitions. [2023-02-13 03:40:41,390 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-02-13 03:40:41,390 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-02-13 03:40:41,390 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-02-13 03:40:41,390 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-13 03:40:41,390 INFO L220 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-13 03:40:41,390 INFO L242 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-13 03:40:41,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-13 03:40:41,391 INFO L426 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-13 03:40:41,391 INFO L333 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2023-02-13 03:40:41,391 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-02-13 03:40:41,391 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-13 03:40:41,392 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-02-13 03:40:41,398 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.02 03:40:41 BasicIcfg [2023-02-13 03:40:41,398 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-02-13 03:40:41,399 INFO L158 Benchmark]: Toolchain (without parser) took 4061.83ms. 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: -380.6MB). Peak memory consumption was 60.9MB. Max. memory is 42.9GB. [2023-02-13 03:40:41,399 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 2.1GB. Free memory is still 2.1GB. There was no memory consumed. Max. memory is 42.9GB. [2023-02-13 03:40:41,399 INFO L158 Benchmark]: CACSL2BoogieTranslator took 138.01ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. [2023-02-13 03:40:41,399 INFO L158 Benchmark]: Boogie Procedure Inliner took 16.60ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. [2023-02-13 03:40:41,399 INFO L158 Benchmark]: Boogie Preprocessor took 8.47ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 967.6kB). There was no memory consumed. Max. memory is 42.9GB. [2023-02-13 03:40:41,400 INFO L158 Benchmark]: RCFGBuilder took 168.61ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. [2023-02-13 03:40:41,400 INFO L158 Benchmark]: BlockEncodingV2 took 44.63ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 4.1MB). There was no memory consumed. Max. memory is 42.9GB. [2023-02-13 03:40:41,400 INFO L158 Benchmark]: TraceAbstraction took 13.16ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. [2023-02-13 03:40:41,400 INFO L158 Benchmark]: BuchiAutomizer took 3667.56ms. 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: -410.6MB). Peak memory consumption was 27.4MB. Max. memory is 42.9GB. [2023-02-13 03:40:41,401 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 8 locations, 10 edges - StatisticsResult: Encoded RCFG 3 locations, 4 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 2.1GB. Free memory is still 2.1GB. There was no memory consumed. Max. memory is 42.9GB. * CACSL2BoogieTranslator took 138.01ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. * Boogie Procedure Inliner took 16.60ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. * Boogie Preprocessor took 8.47ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 967.6kB). There was no memory consumed. Max. memory is 42.9GB. * RCFGBuilder took 168.61ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. * BlockEncodingV2 took 44.63ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 4.1MB). There was no memory consumed. Max. memory is 42.9GB. * TraceAbstraction took 13.16ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. * BuchiAutomizer took 3667.56ms. 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: -410.6MB). Peak memory consumption was 27.4MB. Max. memory is 42.9GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - StatisticsResult: Constructed decomposition of program Your program was decomposed into 8 terminating modules (3 trivial, 0 deterministic, 5 nondeterministic). One nondeterministic module has affine ranking function 211 + -2 * n and consists of 3 locations. One nondeterministic module has affine ranking function 211 + -2 * n and consists of 3 locations. One nondeterministic module has affine ranking function c and consists of 3 locations. One nondeterministic module has affine ranking function -2 * n + 221 and consists of 4 locations. One nondeterministic module has affine ranking function c and consists of 8 locations. 3 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.6s and 7 iterations. TraceHistogramMax:6. Analysis of lassos took 2.3s. Construction of modules took 0.0s. Büchi inclusion checks took 1.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 7. Automata minimization 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 56 StatesRemovedByMinimization, 6 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [5, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 18/22 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 40 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 36 mSDsluCounter, 25 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 28 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 91 IncrementalHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 28 mSolverCounterUnsat, 17 mSDtfsCounter, 91 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT3 conc0 concLT2 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax164 hnf100 lsp36 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq154 hnf94 smp100 dnf100 smp100 tf112 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 25ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 7 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.6s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-02-13 03:40:41,422 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2023-02-13 03:40:41,644 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...