YES This is Ultimate 0.2.2-dev-e7f90c1-m [2023-02-13 03:40:33,330 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-13 03:40:33,331 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-13 03:40:33,345 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-13 03:40:33,346 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-13 03:40:33,346 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-13 03:40:33,347 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-13 03:40:33,348 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-13 03:40:33,349 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-13 03:40:33,349 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-13 03:40:33,350 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-13 03:40:33,350 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-13 03:40:33,350 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-13 03:40:33,351 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-13 03:40:33,351 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-13 03:40:33,352 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-13 03:40:33,352 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-13 03:40:33,353 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-13 03:40:33,354 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-13 03:40:33,354 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-13 03:40:33,355 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2023-02-13 03:40:33,356 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-13 03:40:33,356 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-13 03:40:33,357 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-13 03:40:33,357 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-13 03:40:33,359 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-13 03:40:33,359 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-13 03:40:33,359 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-13 03:40:33,359 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-13 03:40:33,360 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-13 03:40:33,360 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-13 03:40:33,360 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-13 03:40:33,361 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-13 03:40:33,361 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-13 03:40:33,361 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-13 03:40:33,362 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-13 03:40:33,362 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-13 03:40:33,362 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-13 03:40:33,363 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-13 03:40:33,363 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-13 03:40:33,363 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-13 03:40:33,363 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-13 03:40:33,364 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/Ultimate/./../termcomp2017.epf [2023-02-13 03:40:33,375 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-13 03:40:33,375 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-13 03:40:33,375 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-13 03:40:33,375 INFO L138 SettingsManager]: * Rewrite not-equals=true [2023-02-13 03:40:33,376 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-13 03:40:33,376 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2023-02-13 03:40:33,376 INFO L138 SettingsManager]: * Use SBE=true [2023-02-13 03:40:33,376 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-02-13 03:40:33,376 INFO L138 SettingsManager]: * Use old map elimination=false [2023-02-13 03:40:33,376 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2023-02-13 03:40:33,376 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2023-02-13 03:40:33,376 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2023-02-13 03:40:33,376 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-02-13 03:40:33,376 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2023-02-13 03:40:33,376 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:33,377 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-13 03:40:33,377 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-13 03:40:33,377 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-13 03:40:33,377 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-13 03:40:33,377 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-02-13 03:40:33,377 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2023-02-13 03:40:33,377 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-13 03:40:33,377 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-13 03:40:33,377 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2023-02-13 03:40:33,377 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2023-02-13 03:40:33,377 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-13 03:40:33,377 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-13 03:40:33,378 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-13 03:40:33,378 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-02-13 03:40:33,505 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-13 03:40:33,519 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-13 03:40:33,521 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-13 03:40:33,521 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-13 03:40:33,522 INFO L275 PluginConnector]: CDTParser initialized [2023-02-13 03:40:33,522 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2023-02-13 03:40:33,572 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/d31e5e2289444abc83a3c18fb5cbc8e1/FLAG5a93098f5 [2023-02-13 03:40:33,943 INFO L306 CDTParser]: Found 1 translation units. [2023-02-13 03:40:33,943 INFO L160 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2023-02-13 03:40:33,948 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/d31e5e2289444abc83a3c18fb5cbc8e1/FLAG5a93098f5 [2023-02-13 03:40:33,957 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/d31e5e2289444abc83a3c18fb5cbc8e1 [2023-02-13 03:40:33,958 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-13 03:40:33,959 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2023-02-13 03:40:33,960 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-13 03:40:33,960 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-13 03:40:33,962 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-13 03:40:33,963 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.02 03:40:33" (1/1) ... [2023-02-13 03:40:33,963 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@215446b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:33, skipping insertion in model container [2023-02-13 03:40:33,963 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.02 03:40:33" (1/1) ... [2023-02-13 03:40:33,967 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-13 03:40:33,973 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-13 03:40:34,063 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-13 03:40:34,065 INFO L203 MainTranslator]: Completed pre-run [2023-02-13 03:40:34,071 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-13 03:40:34,078 INFO L208 MainTranslator]: Completed translation [2023-02-13 03:40:34,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:34 WrapperNode [2023-02-13 03:40:34,078 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-13 03:40:34,079 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-13 03:40:34,079 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-13 03:40:34,079 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-13 03:40:34,083 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:34" (1/1) ... [2023-02-13 03:40:34,085 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:34" (1/1) ... [2023-02-13 03:40:34,093 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 22 [2023-02-13 03:40:34,094 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-13 03:40:34,094 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-13 03:40:34,094 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-13 03:40:34,094 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-13 03:40:34,098 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:34" (1/1) ... [2023-02-13 03:40:34,098 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:34" (1/1) ... [2023-02-13 03:40:34,099 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:34" (1/1) ... [2023-02-13 03:40:34,099 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:34" (1/1) ... [2023-02-13 03:40:34,100 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:34" (1/1) ... [2023-02-13 03:40:34,101 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:34" (1/1) ... [2023-02-13 03:40:34,102 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:34" (1/1) ... [2023-02-13 03:40:34,102 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-13 03:40:34,103 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-13 03:40:34,103 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-13 03:40:34,103 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-13 03:40:34,103 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:34" (1/1) ... [2023-02-13 03:40:34,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2023-02-13 03:40:34,117 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:34,126 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 03:40:34,131 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 03:40:34,163 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-13 03:40:34,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-13 03:40:34,204 INFO L234 CfgBuilder]: Building ICFG [2023-02-13 03:40:34,205 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-13 03:40:34,264 INFO L275 CfgBuilder]: Performing block encoding [2023-02-13 03:40:34,273 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-13 03:40:34,273 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-13 03:40:34,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:40:34 BoogieIcfgContainer [2023-02-13 03:40:34,275 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-13 03:40:34,276 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2023-02-13 03:40:34,276 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2023-02-13 03:40:34,279 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2023-02-13 03:40:34,279 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:40:34" (1/1) ... [2023-02-13 03:40:34,291 INFO L313 BlockEncoder]: Initial Icfg 9 locations, 12 edges [2023-02-13 03:40:34,292 INFO L258 BlockEncoder]: Using Remove infeasible edges [2023-02-13 03:40:34,292 INFO L263 BlockEncoder]: Using Maximize final states [2023-02-13 03:40:34,292 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2023-02-13 03:40:34,292 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2023-02-13 03:40:34,293 INFO L296 BlockEncoder]: Using Remove sink states [2023-02-13 03:40:34,295 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2023-02-13 03:40:34,295 INFO L179 BlockEncoder]: Using Rewrite not-equals [2023-02-13 03:40:34,317 INFO L185 BlockEncoder]: Using Use SBE [2023-02-13 03:40:34,328 INFO L200 BlockEncoder]: SBE split 2 edges [2023-02-13 03:40:34,332 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2023-02-13 03:40:34,333 INFO L71 MaximizeFinalStates]: 0 new accepting states [2023-02-13 03:40:34,336 INFO L101 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2023-02-13 03:40:34,337 INFO L70 RemoveSinkStates]: Removed 4 edges and 2 locations by removing sink states [2023-02-13 03:40:34,338 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2023-02-13 03:40:34,338 INFO L71 MaximizeFinalStates]: 0 new accepting states [2023-02-13 03:40:34,338 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2023-02-13 03:40:34,339 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2023-02-13 03:40:34,339 INFO L313 BlockEncoder]: Encoded RCFG 4 locations, 7 edges [2023-02-13 03:40:34,339 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 13.02 03:40:34 BasicIcfg [2023-02-13 03:40:34,339 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2023-02-13 03:40:34,341 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-13 03:40:34,341 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-13 03:40:34,342 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-13 03:40:34,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.02 03:40:33" (1/4) ... [2023-02-13 03:40:34,343 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a2fe783 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.02 03:40:34, skipping insertion in model container [2023-02-13 03:40:34,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:34" (2/4) ... [2023-02-13 03:40:34,343 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a2fe783 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.02 03:40:34, skipping insertion in model container [2023-02-13 03:40:34,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:40:34" (3/4) ... [2023-02-13 03:40:34,344 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a2fe783 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.02 03:40:34, skipping insertion in model container [2023-02-13 03:40:34,344 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 13.02 03:40:34" (4/4) ... [2023-02-13 03:40:34,344 INFO L111 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2023-02-13 03:40:34,353 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2023-02-13 03:40:34,353 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 0 error locations. [2023-02-13 03:40:34,354 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a2fe783 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.02 03:40:34, skipping insertion in model container [2023-02-13 03:40:34,354 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-13 03:40:34,354 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-02-13 03:40:34,354 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2023-02-13 03:40:34,356 INFO L275 PluginConnector]: BuchiAutomizer initialized [2023-02-13 03:40:34,356 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:40:34,357 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.02 03:40:33" (1/4) ... [2023-02-13 03:40:34,357 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@ee3ea00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.02 03:40:34, skipping insertion in model container [2023-02-13 03:40:34,357 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:40:34,357 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:34" (2/4) ... [2023-02-13 03:40:34,357 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@ee3ea00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.02 03:40:34, skipping insertion in model container [2023-02-13 03:40:34,357 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:40:34,357 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:40:34" (3/4) ... [2023-02-13 03:40:34,357 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@ee3ea00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.02 03:40:34, skipping insertion in model container [2023-02-13 03:40:34,357 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:40:34,358 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 13.02 03:40:34" (4/4) ... [2023-02-13 03:40:34,358 INFO L322 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2023-02-13 03:40:34,384 INFO L301 stractBuchiCegarLoop]: Interprodecural is true [2023-02-13 03:40:34,384 INFO L302 stractBuchiCegarLoop]: Hoare is true [2023-02-13 03:40:34,384 INFO L303 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-02-13 03:40:34,384 INFO L304 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-02-13 03:40:34,384 INFO L305 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-02-13 03:40:34,385 INFO L306 stractBuchiCegarLoop]: Difference is false [2023-02-13 03:40:34,385 INFO L307 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-02-13 03:40:34,385 INFO L311 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-02-13 03:40:34,388 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:34,407 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-02-13 03:40:34,408 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:40:34,408 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:40:34,413 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2023-02-13 03:40:34,414 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-13 03:40:34,414 INFO L333 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-02-13 03:40:34,414 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:34,414 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-02-13 03:40:34,414 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:40:34,414 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:40:34,415 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2023-02-13 03:40:34,415 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-13 03:40:34,418 INFO L733 eck$LassoCheckResult]: Stem: 2#ULTIMATE.startENTRYtrue [51] ULTIMATE.startENTRY-->L26-2: Formula: true InVars {} OutVars{ULTIMATE.start_main_#t~nondet3#1=|v_ULTIMATE.start_main_#t~nondet3#1_4|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_4|, ULTIMATE.start_main_#t~nondet1#1=|v_ULTIMATE.start_main_#t~nondet1#1_3|, ULTIMATE.start_main_~p~0#1=|v_ULTIMATE.start_main_~p~0#1_12|, ULTIMATE.start_main_#t~nondet2#1=|v_ULTIMATE.start_main_#t~nondet2#1_4|, ULTIMATE.start_main_~q~0#1=|v_ULTIMATE.start_main_~q~0#1_12|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_#t~nondet1#1, ULTIMATE.start_main_~p~0#1, ULTIMATE.start_main_#t~nondet2#1, ULTIMATE.start_main_~q~0#1, ULTIMATE.start_main_#t~nondet0#1] 3#L26-2true [2023-02-13 03:40:34,419 INFO L735 eck$LassoCheckResult]: Loop: 3#L26-2true [49] L26-2-->L23: Formula: (and (< |v_ULTIMATE.start_main_~q~0#1_9| |v_ULTIMATE.start_main_~p~0#1_9|) (< 0 |v_ULTIMATE.start_main_~q~0#1_9|) (< 0 |v_ULTIMATE.start_main_~p~0#1_9|)) InVars {ULTIMATE.start_main_~q~0#1=|v_ULTIMATE.start_main_~q~0#1_9|, ULTIMATE.start_main_~p~0#1=|v_ULTIMATE.start_main_~p~0#1_9|} OutVars{ULTIMATE.start_main_~q~0#1=|v_ULTIMATE.start_main_~q~0#1_9|, ULTIMATE.start_main_~p~0#1=|v_ULTIMATE.start_main_~p~0#1_9|} AuxVars[] AssignedVars[] 4#L23true [34] L23-->L26-2: Formula: (and (= |v_ULTIMATE.start_main_#t~nondet2#1_3| |v_ULTIMATE.start_main_~p~0#1_10|) (< |v_ULTIMATE.start_main_~q~0#1_11| |v_ULTIMATE.start_main_~p~0#1_11|) (= |v_ULTIMATE.start_main_~q~0#1_10| (+ (- 1) |v_ULTIMATE.start_main_~q~0#1_11|))) InVars {ULTIMATE.start_main_~p~0#1=|v_ULTIMATE.start_main_~p~0#1_11|, ULTIMATE.start_main_#t~nondet2#1=|v_ULTIMATE.start_main_#t~nondet2#1_3|, ULTIMATE.start_main_~q~0#1=|v_ULTIMATE.start_main_~q~0#1_11|} OutVars{ULTIMATE.start_main_~q~0#1=|v_ULTIMATE.start_main_~q~0#1_10|, ULTIMATE.start_main_~p~0#1=|v_ULTIMATE.start_main_~p~0#1_10|} AuxVars[] AssignedVars[ULTIMATE.start_main_~p~0#1, ULTIMATE.start_main_#t~nondet2#1, ULTIMATE.start_main_~q~0#1] 3#L26-2true [2023-02-13 03:40:34,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:34,423 INFO L85 PathProgramCache]: Analyzing trace with hash 82, now seen corresponding path program 1 times [2023-02-13 03:40:34,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:34,428 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882130035] [2023-02-13 03:40:34,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:34,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:34,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:34,472 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:34,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:34,482 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:34,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:34,484 INFO L85 PathProgramCache]: Analyzing trace with hash 2514, now seen corresponding path program 1 times [2023-02-13 03:40:34,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:34,484 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600080702] [2023-02-13 03:40:34,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:34,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:34,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:34,490 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:34,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:34,494 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:34,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:34,495 INFO L85 PathProgramCache]: Analyzing trace with hash 80355, now seen corresponding path program 1 times [2023-02-13 03:40:34,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:34,495 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236326688] [2023-02-13 03:40:34,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:34,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:34,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:34,499 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:34,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:34,502 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:34,543 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:34,543 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:34,544 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:34,544 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:34,544 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-13 03:40:34,544 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:34,544 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:34,544 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:34,544 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2023-02-13 03:40:34,544 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:34,544 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:34,552 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 03:40:34,559 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 03:40:34,561 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 03:40:34,596 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:34,596 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-13 03:40:34,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:34,597 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:34,603 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 03:40:34,605 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 03:40:34,605 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:34,605 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:34,617 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:34,617 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 03:40:34,638 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 03:40:34,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:34,639 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:34,639 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 03:40:34,640 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 03:40:34,641 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:34,641 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:34,649 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:34,649 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 03:40:34,678 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2023-02-13 03:40:34,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:34,679 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:34,681 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 03:40:34,682 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 03:40:34,683 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:34,683 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:34,720 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2023-02-13 03:40:34,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:34,721 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:34,722 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 03:40:34,722 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 03:40:34,724 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-13 03:40:34,724 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:34,766 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-13 03:40:34,767 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 03:40:34,768 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:34,768 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:34,768 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:34,769 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:34,769 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-13 03:40:34,769 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:34,769 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:34,770 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:34,770 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2023-02-13 03:40:34,770 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:34,770 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:34,774 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 03:40:34,778 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 03:40:34,782 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 03:40:34,813 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:34,816 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-13 03:40:34,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:34,817 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:34,818 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 03:40:34,822 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 03:40:34,822 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 03:40:34,829 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:34,829 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:34,829 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:34,829 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:34,847 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:40:34,847 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:40:34,858 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:40:34,874 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2023-02-13 03:40:34,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:34,875 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:34,876 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 03:40:34,876 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 03:40:34,877 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 03:40:34,881 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:34,881 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:34,881 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:34,881 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:34,884 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:40:34,884 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:40:34,886 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:40:34,900 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 03:40:34,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:34,901 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:34,902 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 03:40:34,902 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 03:40:34,903 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 03:40:34,909 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:34,909 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:40:34,910 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:34,910 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:34,910 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:34,911 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:40:34,912 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:40:34,917 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-13 03:40:34,922 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-02-13 03:40:34,922 INFO L444 ModelExtractionUtils]: 3 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-13 03:40:34,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:34,924 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:34,927 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 03:40:34,935 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-13 03:40:34,936 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-13 03:40:34,936 INFO L513 LassoAnalysis]: Proved termination. [2023-02-13 03:40:34,937 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 03:40:34,937 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~q~0#1) = 1*ULTIMATE.start_main_~q~0#1 Supporting invariants [] [2023-02-13 03:40:34,961 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 03:40:34,964 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-13 03:40:34,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:34,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:34,980 WARN L261 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-13 03:40:34,980 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:34,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:34,986 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-13 03:40:34,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:34,995 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 03:40:35,015 INFO L100 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2023-02-13 03:40:35,018 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 03:40:35,019 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 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 03:40:35,054 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 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 13 states and 26 transitions. Complement of second has 4 states. [2023-02-13 03:40:35,056 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 03:40:35,063 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 03:40:35,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 15 transitions. [2023-02-13 03:40:35,066 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 1 letters. Loop has 2 letters. [2023-02-13 03:40:35,068 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:35,068 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 3 letters. Loop has 2 letters. [2023-02-13 03:40:35,069 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:35,069 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 1 letters. Loop has 4 letters. [2023-02-13 03:40:35,069 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:35,075 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 26 transitions. [2023-02-13 03:40:35,076 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2023-02-13 03:40:35,079 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 13 states and 26 transitions. [2023-02-13 03:40:35,080 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2023-02-13 03:40:35,080 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2023-02-13 03:40:35,081 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 26 transitions. [2023-02-13 03:40:35,081 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-13 03:40:35,081 INFO L220 hiAutomatonCegarLoop]: Abstraction has 13 states and 26 transitions. [2023-02-13 03:40:35,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 26 transitions. [2023-02-13 03:40:35,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2023-02-13 03:40:35,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 11 states have internal predecessors, (25), 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 03:40:35,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 25 transitions. [2023-02-13 03:40:35,098 INFO L242 hiAutomatonCegarLoop]: Abstraction has 12 states and 25 transitions. [2023-02-13 03:40:35,098 INFO L426 stractBuchiCegarLoop]: Abstraction has 12 states and 25 transitions. [2023-02-13 03:40:35,098 INFO L333 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-02-13 03:40:35,098 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 25 transitions. [2023-02-13 03:40:35,099 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2023-02-13 03:40:35,099 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:40:35,099 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:40:35,099 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-13 03:40:35,099 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-02-13 03:40:35,099 INFO L733 eck$LassoCheckResult]: Stem: 49#ULTIMATE.startENTRY [51] ULTIMATE.startENTRY-->L26-2: Formula: true InVars {} OutVars{ULTIMATE.start_main_#t~nondet3#1=|v_ULTIMATE.start_main_#t~nondet3#1_4|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_4|, ULTIMATE.start_main_#t~nondet1#1=|v_ULTIMATE.start_main_#t~nondet1#1_3|, ULTIMATE.start_main_~p~0#1=|v_ULTIMATE.start_main_~p~0#1_12|, ULTIMATE.start_main_#t~nondet2#1=|v_ULTIMATE.start_main_#t~nondet2#1_4|, ULTIMATE.start_main_~q~0#1=|v_ULTIMATE.start_main_~q~0#1_12|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_#t~nondet1#1, ULTIMATE.start_main_~p~0#1, ULTIMATE.start_main_#t~nondet2#1, ULTIMATE.start_main_~q~0#1, ULTIMATE.start_main_#t~nondet0#1] 50#L26-2 [50] L26-2-->L23: Formula: (and (> |v_ULTIMATE.start_main_~q~0#1_9| |v_ULTIMATE.start_main_~p~0#1_9|) (< 0 |v_ULTIMATE.start_main_~q~0#1_9|) (< 0 |v_ULTIMATE.start_main_~p~0#1_9|)) InVars {ULTIMATE.start_main_~q~0#1=|v_ULTIMATE.start_main_~q~0#1_9|, ULTIMATE.start_main_~p~0#1=|v_ULTIMATE.start_main_~p~0#1_9|} OutVars{ULTIMATE.start_main_~q~0#1=|v_ULTIMATE.start_main_~q~0#1_9|, ULTIMATE.start_main_~p~0#1=|v_ULTIMATE.start_main_~p~0#1_9|} AuxVars[] AssignedVars[] 52#L23 [2023-02-13 03:40:35,099 INFO L735 eck$LassoCheckResult]: Loop: 52#L23 [44] L23-->L26: Formula: (>= |v_ULTIMATE.start_main_~q~0#1_1| |v_ULTIMATE.start_main_~p~0#1_1|) InVars {ULTIMATE.start_main_~q~0#1=|v_ULTIMATE.start_main_~q~0#1_1|, ULTIMATE.start_main_~p~0#1=|v_ULTIMATE.start_main_~p~0#1_1|} OutVars{ULTIMATE.start_main_~q~0#1=|v_ULTIMATE.start_main_~q~0#1_1|, ULTIMATE.start_main_~p~0#1=|v_ULTIMATE.start_main_~p~0#1_1|} AuxVars[] AssignedVars[] 55#L26 [45] L26-->L26-2: Formula: (>= |v_ULTIMATE.start_main_~p~0#1_7| |v_ULTIMATE.start_main_~q~0#1_7|) InVars {ULTIMATE.start_main_~q~0#1=|v_ULTIMATE.start_main_~q~0#1_7|, ULTIMATE.start_main_~p~0#1=|v_ULTIMATE.start_main_~p~0#1_7|} OutVars{ULTIMATE.start_main_~q~0#1=|v_ULTIMATE.start_main_~q~0#1_7|, ULTIMATE.start_main_~p~0#1=|v_ULTIMATE.start_main_~p~0#1_7|} AuxVars[] AssignedVars[] 51#L26-2 [49] L26-2-->L23: Formula: (and (< |v_ULTIMATE.start_main_~q~0#1_9| |v_ULTIMATE.start_main_~p~0#1_9|) (< 0 |v_ULTIMATE.start_main_~q~0#1_9|) (< 0 |v_ULTIMATE.start_main_~p~0#1_9|)) InVars {ULTIMATE.start_main_~q~0#1=|v_ULTIMATE.start_main_~q~0#1_9|, ULTIMATE.start_main_~p~0#1=|v_ULTIMATE.start_main_~p~0#1_9|} OutVars{ULTIMATE.start_main_~q~0#1=|v_ULTIMATE.start_main_~q~0#1_9|, ULTIMATE.start_main_~p~0#1=|v_ULTIMATE.start_main_~p~0#1_9|} AuxVars[] AssignedVars[] 52#L23 [2023-02-13 03:40:35,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:35,100 INFO L85 PathProgramCache]: Analyzing trace with hash 2592, now seen corresponding path program 1 times [2023-02-13 03:40:35,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:35,100 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627386409] [2023-02-13 03:40:35,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:35,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:35,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:35,103 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:35,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:35,105 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:35,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:35,105 INFO L85 PathProgramCache]: Analyzing trace with hash 73519, now seen corresponding path program 1 times [2023-02-13 03:40:35,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:35,105 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722832772] [2023-02-13 03:40:35,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:35,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:35,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:35,122 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 03:40:35,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-13 03:40:35,122 INFO L335 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722832772] [2023-02-13 03:40:35,122 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722832772] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-13 03:40:35,122 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-13 03:40:35,123 ERROR L191 FreeRefinementEngine]: {64#true} [66#(<= |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~q~0#1|), 66#(<= |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~q~0#1|)] {65#false} [2023-02-13 03:40:35,123 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-02-13 03:40:35,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85835194] [2023-02-13 03:40:35,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-13 03:40:35,124 INFO L750 eck$LassoCheckResult]: loop already infeasible [2023-02-13 03:40:35,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-13 03:40:35,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-13 03:40:35,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-13 03:40:35,127 INFO L87 Difference]: Start difference. First operand 12 states and 25 transitions. cyclomatic complexity: 16 Second operand has 3 states, 2 states have (on average 1.5) 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 03:40:35,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-13 03:40:35,139 INFO L93 Difference]: Finished difference Result 16 states and 27 transitions. [2023-02-13 03:40:35,139 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 27 transitions. [2023-02-13 03:40:35,139 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2023-02-13 03:40:35,140 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 13 states and 21 transitions. [2023-02-13 03:40:35,140 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2023-02-13 03:40:35,140 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2023-02-13 03:40:35,140 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 21 transitions. [2023-02-13 03:40:35,140 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-13 03:40:35,140 INFO L220 hiAutomatonCegarLoop]: Abstraction has 13 states and 21 transitions. [2023-02-13 03:40:35,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 21 transitions. [2023-02-13 03:40:35,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 9. [2023-02-13 03:40:35,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 8 states have internal predecessors, (16), 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 03:40:35,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 16 transitions. [2023-02-13 03:40:35,141 INFO L242 hiAutomatonCegarLoop]: Abstraction has 9 states and 16 transitions. [2023-02-13 03:40:35,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-13 03:40:35,142 INFO L426 stractBuchiCegarLoop]: Abstraction has 9 states and 16 transitions. [2023-02-13 03:40:35,142 INFO L333 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-02-13 03:40:35,142 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 16 transitions. [2023-02-13 03:40:35,143 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-02-13 03:40:35,143 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:40:35,143 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:40:35,143 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-13 03:40:35,143 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-02-13 03:40:35,143 INFO L733 eck$LassoCheckResult]: Stem: 83#ULTIMATE.startENTRY [51] ULTIMATE.startENTRY-->L26-2: Formula: true InVars {} OutVars{ULTIMATE.start_main_#t~nondet3#1=|v_ULTIMATE.start_main_#t~nondet3#1_4|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_4|, ULTIMATE.start_main_#t~nondet1#1=|v_ULTIMATE.start_main_#t~nondet1#1_3|, ULTIMATE.start_main_~p~0#1=|v_ULTIMATE.start_main_~p~0#1_12|, ULTIMATE.start_main_#t~nondet2#1=|v_ULTIMATE.start_main_#t~nondet2#1_4|, ULTIMATE.start_main_~q~0#1=|v_ULTIMATE.start_main_~q~0#1_12|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_#t~nondet1#1, ULTIMATE.start_main_~p~0#1, ULTIMATE.start_main_#t~nondet2#1, ULTIMATE.start_main_~q~0#1, ULTIMATE.start_main_#t~nondet0#1] 84#L26-2 [50] L26-2-->L23: Formula: (and (> |v_ULTIMATE.start_main_~q~0#1_9| |v_ULTIMATE.start_main_~p~0#1_9|) (< 0 |v_ULTIMATE.start_main_~q~0#1_9|) (< 0 |v_ULTIMATE.start_main_~p~0#1_9|)) InVars {ULTIMATE.start_main_~q~0#1=|v_ULTIMATE.start_main_~q~0#1_9|, ULTIMATE.start_main_~p~0#1=|v_ULTIMATE.start_main_~p~0#1_9|} OutVars{ULTIMATE.start_main_~q~0#1=|v_ULTIMATE.start_main_~q~0#1_9|, ULTIMATE.start_main_~p~0#1=|v_ULTIMATE.start_main_~p~0#1_9|} AuxVars[] AssignedVars[] 86#L23 [2023-02-13 03:40:35,143 INFO L735 eck$LassoCheckResult]: Loop: 86#L23 [44] L23-->L26: Formula: (>= |v_ULTIMATE.start_main_~q~0#1_1| |v_ULTIMATE.start_main_~p~0#1_1|) InVars {ULTIMATE.start_main_~q~0#1=|v_ULTIMATE.start_main_~q~0#1_1|, ULTIMATE.start_main_~p~0#1=|v_ULTIMATE.start_main_~p~0#1_1|} OutVars{ULTIMATE.start_main_~q~0#1=|v_ULTIMATE.start_main_~q~0#1_1|, ULTIMATE.start_main_~p~0#1=|v_ULTIMATE.start_main_~p~0#1_1|} AuxVars[] AssignedVars[] 89#L26 [45] L26-->L26-2: Formula: (>= |v_ULTIMATE.start_main_~p~0#1_7| |v_ULTIMATE.start_main_~q~0#1_7|) InVars {ULTIMATE.start_main_~q~0#1=|v_ULTIMATE.start_main_~q~0#1_7|, ULTIMATE.start_main_~p~0#1=|v_ULTIMATE.start_main_~p~0#1_7|} OutVars{ULTIMATE.start_main_~q~0#1=|v_ULTIMATE.start_main_~q~0#1_7|, ULTIMATE.start_main_~p~0#1=|v_ULTIMATE.start_main_~p~0#1_7|} AuxVars[] AssignedVars[] 85#L26-2 [50] L26-2-->L23: Formula: (and (> |v_ULTIMATE.start_main_~q~0#1_9| |v_ULTIMATE.start_main_~p~0#1_9|) (< 0 |v_ULTIMATE.start_main_~q~0#1_9|) (< 0 |v_ULTIMATE.start_main_~p~0#1_9|)) InVars {ULTIMATE.start_main_~q~0#1=|v_ULTIMATE.start_main_~q~0#1_9|, ULTIMATE.start_main_~p~0#1=|v_ULTIMATE.start_main_~p~0#1_9|} OutVars{ULTIMATE.start_main_~q~0#1=|v_ULTIMATE.start_main_~q~0#1_9|, ULTIMATE.start_main_~p~0#1=|v_ULTIMATE.start_main_~p~0#1_9|} AuxVars[] AssignedVars[] 86#L23 [2023-02-13 03:40:35,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:35,144 INFO L85 PathProgramCache]: Analyzing trace with hash 2592, now seen corresponding path program 2 times [2023-02-13 03:40:35,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:35,144 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98410180] [2023-02-13 03:40:35,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:35,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:35,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:35,147 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:35,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:35,149 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:35,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:35,149 INFO L85 PathProgramCache]: Analyzing trace with hash 73520, now seen corresponding path program 1 times [2023-02-13 03:40:35,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:35,149 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209758590] [2023-02-13 03:40:35,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:35,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:35,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:35,156 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 03:40:35,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-13 03:40:35,157 INFO L335 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209758590] [2023-02-13 03:40:35,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209758590] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-13 03:40:35,157 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-13 03:40:35,157 ERROR L191 FreeRefinementEngine]: {95#true} [95#true, 97#(not (<= (+ |ULTIMATE.start_main_~p~0#1| 1) |ULTIMATE.start_main_~q~0#1|))] {96#false} [2023-02-13 03:40:35,157 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-13 03:40:35,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326648620] [2023-02-13 03:40:35,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-13 03:40:35,157 INFO L750 eck$LassoCheckResult]: loop already infeasible [2023-02-13 03:40:35,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-13 03:40:35,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-13 03:40:35,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-13 03:40:35,158 INFO L87 Difference]: Start difference. First operand 9 states and 16 transitions. cyclomatic complexity: 9 Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 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 03:40:35,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-13 03:40:35,167 INFO L93 Difference]: Finished difference Result 11 states and 17 transitions. [2023-02-13 03:40:35,167 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 17 transitions. [2023-02-13 03:40:35,167 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-13 03:40:35,168 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 8 states and 11 transitions. [2023-02-13 03:40:35,168 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2023-02-13 03:40:35,168 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2023-02-13 03:40:35,168 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2023-02-13 03:40:35,168 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-13 03:40:35,168 INFO L220 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2023-02-13 03:40:35,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2023-02-13 03:40:35,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2023-02-13 03:40:35,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:35,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2023-02-13 03:40:35,169 INFO L242 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2023-02-13 03:40:35,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-13 03:40:35,170 INFO L426 stractBuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2023-02-13 03:40:35,170 INFO L333 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-02-13 03:40:35,170 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 11 transitions. [2023-02-13 03:40:35,170 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-13 03:40:35,170 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:40:35,170 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:40:35,171 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-13 03:40:35,171 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-02-13 03:40:35,171 INFO L733 eck$LassoCheckResult]: Stem: 109#ULTIMATE.startENTRY [51] ULTIMATE.startENTRY-->L26-2: Formula: true InVars {} OutVars{ULTIMATE.start_main_#t~nondet3#1=|v_ULTIMATE.start_main_#t~nondet3#1_4|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_4|, ULTIMATE.start_main_#t~nondet1#1=|v_ULTIMATE.start_main_#t~nondet1#1_3|, ULTIMATE.start_main_~p~0#1=|v_ULTIMATE.start_main_~p~0#1_12|, ULTIMATE.start_main_#t~nondet2#1=|v_ULTIMATE.start_main_#t~nondet2#1_4|, ULTIMATE.start_main_~q~0#1=|v_ULTIMATE.start_main_~q~0#1_12|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_#t~nondet1#1, ULTIMATE.start_main_~p~0#1, ULTIMATE.start_main_#t~nondet2#1, ULTIMATE.start_main_~q~0#1, ULTIMATE.start_main_#t~nondet0#1] 110#L26-2 [50] L26-2-->L23: Formula: (and (> |v_ULTIMATE.start_main_~q~0#1_9| |v_ULTIMATE.start_main_~p~0#1_9|) (< 0 |v_ULTIMATE.start_main_~q~0#1_9|) (< 0 |v_ULTIMATE.start_main_~p~0#1_9|)) InVars {ULTIMATE.start_main_~q~0#1=|v_ULTIMATE.start_main_~q~0#1_9|, ULTIMATE.start_main_~p~0#1=|v_ULTIMATE.start_main_~p~0#1_9|} OutVars{ULTIMATE.start_main_~q~0#1=|v_ULTIMATE.start_main_~q~0#1_9|, ULTIMATE.start_main_~p~0#1=|v_ULTIMATE.start_main_~p~0#1_9|} AuxVars[] AssignedVars[] 113#L23 [2023-02-13 03:40:35,171 INFO L735 eck$LassoCheckResult]: Loop: 113#L23 [44] L23-->L26: Formula: (>= |v_ULTIMATE.start_main_~q~0#1_1| |v_ULTIMATE.start_main_~p~0#1_1|) InVars {ULTIMATE.start_main_~q~0#1=|v_ULTIMATE.start_main_~q~0#1_1|, ULTIMATE.start_main_~p~0#1=|v_ULTIMATE.start_main_~p~0#1_1|} OutVars{ULTIMATE.start_main_~q~0#1=|v_ULTIMATE.start_main_~q~0#1_1|, ULTIMATE.start_main_~p~0#1=|v_ULTIMATE.start_main_~p~0#1_1|} AuxVars[] AssignedVars[] 116#L26 [37] L26-->L26-2: Formula: (and (< |v_ULTIMATE.start_main_~p~0#1_6| |v_ULTIMATE.start_main_~q~0#1_6|) (= |v_ULTIMATE.start_main_~q~0#1_5| |v_ULTIMATE.start_main_#t~nondet3#1_3|) (= (+ (- 1) |v_ULTIMATE.start_main_~p~0#1_6|) |v_ULTIMATE.start_main_~p~0#1_5|)) InVars {ULTIMATE.start_main_~p~0#1=|v_ULTIMATE.start_main_~p~0#1_6|, ULTIMATE.start_main_#t~nondet3#1=|v_ULTIMATE.start_main_#t~nondet3#1_3|, ULTIMATE.start_main_~q~0#1=|v_ULTIMATE.start_main_~q~0#1_6|} OutVars{ULTIMATE.start_main_~q~0#1=|v_ULTIMATE.start_main_~q~0#1_5|, ULTIMATE.start_main_~p~0#1=|v_ULTIMATE.start_main_~p~0#1_5|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3#1, ULTIMATE.start_main_~p~0#1, ULTIMATE.start_main_~q~0#1] 111#L26-2 [50] L26-2-->L23: Formula: (and (> |v_ULTIMATE.start_main_~q~0#1_9| |v_ULTIMATE.start_main_~p~0#1_9|) (< 0 |v_ULTIMATE.start_main_~q~0#1_9|) (< 0 |v_ULTIMATE.start_main_~p~0#1_9|)) InVars {ULTIMATE.start_main_~q~0#1=|v_ULTIMATE.start_main_~q~0#1_9|, ULTIMATE.start_main_~p~0#1=|v_ULTIMATE.start_main_~p~0#1_9|} OutVars{ULTIMATE.start_main_~q~0#1=|v_ULTIMATE.start_main_~q~0#1_9|, ULTIMATE.start_main_~p~0#1=|v_ULTIMATE.start_main_~p~0#1_9|} AuxVars[] AssignedVars[] 113#L23 [2023-02-13 03:40:35,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:35,171 INFO L85 PathProgramCache]: Analyzing trace with hash 2592, now seen corresponding path program 3 times [2023-02-13 03:40:35,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:35,172 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524539830] [2023-02-13 03:40:35,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:35,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:35,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:35,174 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:35,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:35,176 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:35,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:35,177 INFO L85 PathProgramCache]: Analyzing trace with hash 73272, now seen corresponding path program 1 times [2023-02-13 03:40:35,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:35,177 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032978955] [2023-02-13 03:40:35,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:35,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:35,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:35,180 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:35,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:35,183 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:35,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:35,183 INFO L85 PathProgramCache]: Analyzing trace with hash 77261753, now seen corresponding path program 1 times [2023-02-13 03:40:35,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:35,184 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520852495] [2023-02-13 03:40:35,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:35,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:35,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:35,188 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:35,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:35,191 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:35,212 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:35,212 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:35,212 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:35,212 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:35,213 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-13 03:40:35,213 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:35,213 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:35,213 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:35,213 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2023-02-13 03:40:35,213 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:35,213 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:35,213 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:35,215 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 03:40:35,216 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 03:40:35,247 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:35,247 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-13 03:40:35,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:35,247 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:35,249 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 03:40:35,251 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 03:40:35,251 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:35,251 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:35,261 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:35,261 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 03:40:35,276 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 03:40:35,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:35,277 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:35,278 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 03:40:35,282 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 03:40:35,282 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:35,283 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:35,292 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:35,292 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 03:40:35,322 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 03:40:35,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:35,322 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:35,323 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 03:40:35,326 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 03:40:35,326 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:35,327 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:35,346 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 03:40:35,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:35,347 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:35,348 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 03:40:35,349 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 03:40:35,349 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-13 03:40:35,349 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:35,434 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-13 03:40:35,436 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 03:40:35,437 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:35,437 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:35,437 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:35,437 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:35,437 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-13 03:40:35,437 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:35,437 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:35,437 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:35,437 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2023-02-13 03:40:35,437 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:35,437 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:35,438 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 03:40:35,441 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 03:40:35,444 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 03:40:35,499 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:35,500 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-13 03:40:35,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:35,500 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:35,501 INFO L229 MonitoredProcess]: Starting monitored process 14 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:35,503 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-02-13 03:40:35,503 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 03:40:35,508 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:35,508 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:35,508 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:35,508 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:35,511 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:40:35,511 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:40:35,514 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:40:35,529 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2023-02-13 03:40:35,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:35,529 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:35,530 INFO L229 MonitoredProcess]: Starting monitored process 15 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:35,531 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 03:40:35,534 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-02-13 03:40:35,535 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:35,535 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:35,535 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:35,535 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:35,538 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:40:35,538 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:40:35,541 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:40:35,555 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2023-02-13 03:40:35,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:35,555 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:35,556 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 03:40:35,558 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 03:40:35,563 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 03:40:35,567 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:35,567 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:40:35,568 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:35,568 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:35,568 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:35,572 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:40:35,573 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:40:35,576 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-13 03:40:35,583 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-13 03:40:35,583 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-13 03:40:35,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:35,584 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:35,585 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 03:40:35,590 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 03:40:35,590 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-13 03:40:35,590 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-13 03:40:35,590 INFO L513 LassoAnalysis]: Proved termination. [2023-02-13 03:40:35,590 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~p~0#1) = 1*ULTIMATE.start_main_~p~0#1 Supporting invariants [] [2023-02-13 03:40:35,611 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 03:40:35,611 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-13 03:40:35,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:35,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:35,630 INFO L263 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-13 03:40:35,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:35,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:35,636 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-13 03:40:35,636 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:35,653 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 03:40:35,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:35,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-13 03:40:35,658 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:35,671 INFO L100 LoopCannibalizer]: 2 predicates before loop cannibalization 3 predicates after loop cannibalization [2023-02-13 03:40:35,671 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2023-02-13 03:40:35,671 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 8 states and 11 transitions. cyclomatic complexity: 5 Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 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 03:40:35,688 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 8 states and 11 transitions. cyclomatic complexity: 5. Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 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 15 states and 19 transitions. Complement of second has 7 states. [2023-02-13 03:40:35,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 2 accepting loop states [2023-02-13 03:40:35,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 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 03:40:35,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2023-02-13 03:40:35,689 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 2 letters. Loop has 3 letters. [2023-02-13 03:40:35,689 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:35,689 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 5 letters. Loop has 3 letters. [2023-02-13 03:40:35,689 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:35,689 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 2 letters. Loop has 6 letters. [2023-02-13 03:40:35,689 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:35,690 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 19 transitions. [2023-02-13 03:40:35,690 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2023-02-13 03:40:35,690 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 11 states and 15 transitions. [2023-02-13 03:40:35,690 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2023-02-13 03:40:35,690 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2023-02-13 03:40:35,690 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 15 transitions. [2023-02-13 03:40:35,691 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-13 03:40:35,691 INFO L220 hiAutomatonCegarLoop]: Abstraction has 11 states and 15 transitions. [2023-02-13 03:40:35,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 15 transitions. [2023-02-13 03:40:35,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2023-02-13 03:40:35,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.4) internal successors, (14), 9 states have internal predecessors, (14), 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 03:40:35,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 14 transitions. [2023-02-13 03:40:35,691 INFO L242 hiAutomatonCegarLoop]: Abstraction has 10 states and 14 transitions. [2023-02-13 03:40:35,691 INFO L426 stractBuchiCegarLoop]: Abstraction has 10 states and 14 transitions. [2023-02-13 03:40:35,691 INFO L333 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-02-13 03:40:35,692 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 14 transitions. [2023-02-13 03:40:35,692 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2023-02-13 03:40:35,692 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:40:35,692 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:40:35,692 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-13 03:40:35,692 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2023-02-13 03:40:35,692 INFO L733 eck$LassoCheckResult]: Stem: 180#ULTIMATE.startENTRY [51] ULTIMATE.startENTRY-->L26-2: Formula: true InVars {} OutVars{ULTIMATE.start_main_#t~nondet3#1=|v_ULTIMATE.start_main_#t~nondet3#1_4|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_4|, ULTIMATE.start_main_#t~nondet1#1=|v_ULTIMATE.start_main_#t~nondet1#1_3|, ULTIMATE.start_main_~p~0#1=|v_ULTIMATE.start_main_~p~0#1_12|, ULTIMATE.start_main_#t~nondet2#1=|v_ULTIMATE.start_main_#t~nondet2#1_4|, ULTIMATE.start_main_~q~0#1=|v_ULTIMATE.start_main_~q~0#1_12|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_#t~nondet1#1, ULTIMATE.start_main_~p~0#1, ULTIMATE.start_main_#t~nondet2#1, ULTIMATE.start_main_~q~0#1, ULTIMATE.start_main_#t~nondet0#1] 181#L26-2 [50] L26-2-->L23: Formula: (and (> |v_ULTIMATE.start_main_~q~0#1_9| |v_ULTIMATE.start_main_~p~0#1_9|) (< 0 |v_ULTIMATE.start_main_~q~0#1_9|) (< 0 |v_ULTIMATE.start_main_~p~0#1_9|)) InVars {ULTIMATE.start_main_~q~0#1=|v_ULTIMATE.start_main_~q~0#1_9|, ULTIMATE.start_main_~p~0#1=|v_ULTIMATE.start_main_~p~0#1_9|} OutVars{ULTIMATE.start_main_~q~0#1=|v_ULTIMATE.start_main_~q~0#1_9|, ULTIMATE.start_main_~p~0#1=|v_ULTIMATE.start_main_~p~0#1_9|} AuxVars[] AssignedVars[] 184#L23 [2023-02-13 03:40:35,692 INFO L735 eck$LassoCheckResult]: Loop: 184#L23 [44] L23-->L26: Formula: (>= |v_ULTIMATE.start_main_~q~0#1_1| |v_ULTIMATE.start_main_~p~0#1_1|) InVars {ULTIMATE.start_main_~q~0#1=|v_ULTIMATE.start_main_~q~0#1_1|, ULTIMATE.start_main_~p~0#1=|v_ULTIMATE.start_main_~p~0#1_1|} OutVars{ULTIMATE.start_main_~q~0#1=|v_ULTIMATE.start_main_~q~0#1_1|, ULTIMATE.start_main_~p~0#1=|v_ULTIMATE.start_main_~p~0#1_1|} AuxVars[] AssignedVars[] 189#L26 [37] L26-->L26-2: Formula: (and (< |v_ULTIMATE.start_main_~p~0#1_6| |v_ULTIMATE.start_main_~q~0#1_6|) (= |v_ULTIMATE.start_main_~q~0#1_5| |v_ULTIMATE.start_main_#t~nondet3#1_3|) (= (+ (- 1) |v_ULTIMATE.start_main_~p~0#1_6|) |v_ULTIMATE.start_main_~p~0#1_5|)) InVars {ULTIMATE.start_main_~p~0#1=|v_ULTIMATE.start_main_~p~0#1_6|, ULTIMATE.start_main_#t~nondet3#1=|v_ULTIMATE.start_main_#t~nondet3#1_3|, ULTIMATE.start_main_~q~0#1=|v_ULTIMATE.start_main_~q~0#1_6|} OutVars{ULTIMATE.start_main_~q~0#1=|v_ULTIMATE.start_main_~q~0#1_5|, ULTIMATE.start_main_~p~0#1=|v_ULTIMATE.start_main_~p~0#1_5|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3#1, ULTIMATE.start_main_~p~0#1, ULTIMATE.start_main_~q~0#1] 185#L26-2 [49] L26-2-->L23: Formula: (and (< |v_ULTIMATE.start_main_~q~0#1_9| |v_ULTIMATE.start_main_~p~0#1_9|) (< 0 |v_ULTIMATE.start_main_~q~0#1_9|) (< 0 |v_ULTIMATE.start_main_~p~0#1_9|)) InVars {ULTIMATE.start_main_~q~0#1=|v_ULTIMATE.start_main_~q~0#1_9|, ULTIMATE.start_main_~p~0#1=|v_ULTIMATE.start_main_~p~0#1_9|} OutVars{ULTIMATE.start_main_~q~0#1=|v_ULTIMATE.start_main_~q~0#1_9|, ULTIMATE.start_main_~p~0#1=|v_ULTIMATE.start_main_~p~0#1_9|} AuxVars[] AssignedVars[] 183#L23 [34] L23-->L26-2: Formula: (and (= |v_ULTIMATE.start_main_#t~nondet2#1_3| |v_ULTIMATE.start_main_~p~0#1_10|) (< |v_ULTIMATE.start_main_~q~0#1_11| |v_ULTIMATE.start_main_~p~0#1_11|) (= |v_ULTIMATE.start_main_~q~0#1_10| (+ (- 1) |v_ULTIMATE.start_main_~q~0#1_11|))) InVars {ULTIMATE.start_main_~p~0#1=|v_ULTIMATE.start_main_~p~0#1_11|, ULTIMATE.start_main_#t~nondet2#1=|v_ULTIMATE.start_main_#t~nondet2#1_3|, ULTIMATE.start_main_~q~0#1=|v_ULTIMATE.start_main_~q~0#1_11|} OutVars{ULTIMATE.start_main_~q~0#1=|v_ULTIMATE.start_main_~q~0#1_10|, ULTIMATE.start_main_~p~0#1=|v_ULTIMATE.start_main_~p~0#1_10|} AuxVars[] AssignedVars[ULTIMATE.start_main_~p~0#1, ULTIMATE.start_main_#t~nondet2#1, ULTIMATE.start_main_~q~0#1] 182#L26-2 [50] L26-2-->L23: Formula: (and (> |v_ULTIMATE.start_main_~q~0#1_9| |v_ULTIMATE.start_main_~p~0#1_9|) (< 0 |v_ULTIMATE.start_main_~q~0#1_9|) (< 0 |v_ULTIMATE.start_main_~p~0#1_9|)) InVars {ULTIMATE.start_main_~q~0#1=|v_ULTIMATE.start_main_~q~0#1_9|, ULTIMATE.start_main_~p~0#1=|v_ULTIMATE.start_main_~p~0#1_9|} OutVars{ULTIMATE.start_main_~q~0#1=|v_ULTIMATE.start_main_~q~0#1_9|, ULTIMATE.start_main_~p~0#1=|v_ULTIMATE.start_main_~p~0#1_9|} AuxVars[] AssignedVars[] 184#L23 [2023-02-13 03:40:35,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:35,693 INFO L85 PathProgramCache]: Analyzing trace with hash 2592, now seen corresponding path program 4 times [2023-02-13 03:40:35,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:35,693 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419471737] [2023-02-13 03:40:35,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:35,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:35,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:35,695 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:35,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:35,697 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:35,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:35,697 INFO L85 PathProgramCache]: Analyzing trace with hash 70414535, now seen corresponding path program 1 times [2023-02-13 03:40:35,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:35,697 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134068770] [2023-02-13 03:40:35,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:35,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:35,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:35,700 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:35,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:35,704 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:35,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:35,704 INFO L85 PathProgramCache]: Analyzing trace with hash 1234100744, now seen corresponding path program 1 times [2023-02-13 03:40:35,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:35,704 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069102714] [2023-02-13 03:40:35,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:35,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:35,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:35,708 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:35,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:35,711 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:35,740 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:35,740 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:35,741 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:35,741 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:35,741 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-13 03:40:35,741 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:35,741 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:35,741 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:35,741 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration5_Loop [2023-02-13 03:40:35,741 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:35,741 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:35,742 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 03:40:35,743 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:35,749 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 03:40:35,773 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:35,773 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-13 03:40:35,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:35,773 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:35,775 INFO L229 MonitoredProcess]: Starting monitored process 18 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 03:40:35,775 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-02-13 03:40:35,778 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:35,778 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:35,785 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:35,785 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 03:40:35,799 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2023-02-13 03:40:35,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:35,800 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:35,800 INFO L229 MonitoredProcess]: Starting monitored process 19 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:35,801 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-02-13 03:40:35,802 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:35,802 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:35,843 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2023-02-13 03:40:35,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:35,844 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:35,845 INFO L229 MonitoredProcess]: Starting monitored process 20 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:35,847 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-02-13 03:40:35,848 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-13 03:40:35,848 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:35,978 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-13 03:40:35,981 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2023-02-13 03:40:35,981 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:35,981 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:35,981 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:35,982 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:35,982 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-13 03:40:35,982 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:35,982 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:35,982 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:35,982 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration5_Loop [2023-02-13 03:40:35,982 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:35,982 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:35,983 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 03:40:35,986 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 03:40:35,990 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:36,072 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:36,073 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-13 03:40:36,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:36,074 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:36,076 INFO L229 MonitoredProcess]: Starting monitored process 21 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:36,078 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2023-02-13 03:40:36,078 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:36,086 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:36,087 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:36,087 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:36,087 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:36,088 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:40:36,088 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:40:36,093 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:40:36,113 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2023-02-13 03:40:36,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:36,114 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:36,114 INFO L229 MonitoredProcess]: Starting monitored process 22 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:36,130 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-02-13 03:40:36,131 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 03:40:36,135 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:36,135 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:36,135 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:36,136 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:36,138 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:40:36,138 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:40:36,141 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:40:36,157 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2023-02-13 03:40:36,167 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2023-02-13 03:40:36,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:36,167 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:36,168 INFO L229 MonitoredProcess]: Starting monitored process 23 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:36,170 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2023-02-13 03:40:36,170 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 03:40:36,176 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:36,176 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:40:36,177 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:36,177 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:36,177 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:36,178 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:40:36,178 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:40:36,181 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-13 03:40:36,185 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-02-13 03:40:36,185 INFO L444 ModelExtractionUtils]: 4 out of 6 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-13 03:40:36,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:36,185 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:36,186 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 03:40:36,187 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-13 03:40:36,187 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-13 03:40:36,188 INFO L513 LassoAnalysis]: Proved termination. [2023-02-13 03:40:36,188 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~p~0#1) = 1*ULTIMATE.start_main_~p~0#1 Supporting invariants [] [2023-02-13 03:40:36,188 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 03:40:36,188 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 03:40:36,214 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2023-02-13 03:40:36,215 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-13 03:40:36,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:36,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:36,234 INFO L263 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-13 03:40:36,234 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:36,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:36,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 7 conjunts are in the unsatisfiable core [2023-02-13 03:40:36,251 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:36,298 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 03:40:36,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:36,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 7 conjunts are in the unsatisfiable core [2023-02-13 03:40:36,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:36,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:36,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 8 conjunts are in the unsatisfiable core [2023-02-13 03:40:36,372 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:36,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:36,406 INFO L139 LoopCannibalizer]: termination argument not suffcient for all loop shiftings [2023-02-13 03:40:36,406 INFO L100 LoopCannibalizer]: 4 predicates before loop cannibalization 8 predicates after loop cannibalization [2023-02-13 03:40:36,407 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 03:40:36,407 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 10 states and 14 transitions. cyclomatic complexity: 6 Second operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 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 03:40:36,601 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 10 states and 14 transitions. cyclomatic complexity: 6. Second operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 22 states and 29 transitions. Complement of second has 17 states. [2023-02-13 03:40:36,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 1 stem states 6 non-accepting loop states 2 accepting loop states [2023-02-13 03:40:36,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 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 03:40:36,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 19 transitions. [2023-02-13 03:40:36,604 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 19 transitions. Stem has 2 letters. Loop has 5 letters. [2023-02-13 03:40:36,605 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:36,605 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 19 transitions. Stem has 7 letters. Loop has 5 letters. [2023-02-13 03:40:36,606 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:36,606 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 19 transitions. Stem has 2 letters. Loop has 10 letters. [2023-02-13 03:40:36,606 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:36,608 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 29 transitions. [2023-02-13 03:40:36,609 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-13 03:40:36,610 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 19 states and 25 transitions. [2023-02-13 03:40:36,610 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2023-02-13 03:40:36,610 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2023-02-13 03:40:36,611 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 25 transitions. [2023-02-13 03:40:36,611 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-13 03:40:36,611 INFO L220 hiAutomatonCegarLoop]: Abstraction has 19 states and 25 transitions. [2023-02-13 03:40:36,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 25 transitions. [2023-02-13 03:40:36,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 12. [2023-02-13 03:40:36,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 11 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:36,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 17 transitions. [2023-02-13 03:40:36,615 INFO L242 hiAutomatonCegarLoop]: Abstraction has 12 states and 17 transitions. [2023-02-13 03:40:36,616 INFO L426 stractBuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2023-02-13 03:40:36,616 INFO L333 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2023-02-13 03:40:36,616 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 17 transitions. [2023-02-13 03:40:36,617 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-13 03:40:36,617 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:40:36,618 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:40:36,618 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2023-02-13 03:40:36,619 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-13 03:40:36,619 INFO L733 eck$LassoCheckResult]: Stem: 308#ULTIMATE.startENTRY [51] ULTIMATE.startENTRY-->L26-2: Formula: true InVars {} OutVars{ULTIMATE.start_main_#t~nondet3#1=|v_ULTIMATE.start_main_#t~nondet3#1_4|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_4|, ULTIMATE.start_main_#t~nondet1#1=|v_ULTIMATE.start_main_#t~nondet1#1_3|, ULTIMATE.start_main_~p~0#1=|v_ULTIMATE.start_main_~p~0#1_12|, ULTIMATE.start_main_#t~nondet2#1=|v_ULTIMATE.start_main_#t~nondet2#1_4|, ULTIMATE.start_main_~q~0#1=|v_ULTIMATE.start_main_~q~0#1_12|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_#t~nondet1#1, ULTIMATE.start_main_~p~0#1, ULTIMATE.start_main_#t~nondet2#1, ULTIMATE.start_main_~q~0#1, ULTIMATE.start_main_#t~nondet0#1] 309#L26-2 [50] L26-2-->L23: Formula: (and (> |v_ULTIMATE.start_main_~q~0#1_9| |v_ULTIMATE.start_main_~p~0#1_9|) (< 0 |v_ULTIMATE.start_main_~q~0#1_9|) (< 0 |v_ULTIMATE.start_main_~p~0#1_9|)) InVars {ULTIMATE.start_main_~q~0#1=|v_ULTIMATE.start_main_~q~0#1_9|, ULTIMATE.start_main_~p~0#1=|v_ULTIMATE.start_main_~p~0#1_9|} OutVars{ULTIMATE.start_main_~q~0#1=|v_ULTIMATE.start_main_~q~0#1_9|, ULTIMATE.start_main_~p~0#1=|v_ULTIMATE.start_main_~p~0#1_9|} AuxVars[] AssignedVars[] 317#L23 [44] L23-->L26: Formula: (>= |v_ULTIMATE.start_main_~q~0#1_1| |v_ULTIMATE.start_main_~p~0#1_1|) InVars {ULTIMATE.start_main_~q~0#1=|v_ULTIMATE.start_main_~q~0#1_1|, ULTIMATE.start_main_~p~0#1=|v_ULTIMATE.start_main_~p~0#1_1|} OutVars{ULTIMATE.start_main_~q~0#1=|v_ULTIMATE.start_main_~q~0#1_1|, ULTIMATE.start_main_~p~0#1=|v_ULTIMATE.start_main_~p~0#1_1|} AuxVars[] AssignedVars[] 315#L26 [37] L26-->L26-2: Formula: (and (< |v_ULTIMATE.start_main_~p~0#1_6| |v_ULTIMATE.start_main_~q~0#1_6|) (= |v_ULTIMATE.start_main_~q~0#1_5| |v_ULTIMATE.start_main_#t~nondet3#1_3|) (= (+ (- 1) |v_ULTIMATE.start_main_~p~0#1_6|) |v_ULTIMATE.start_main_~p~0#1_5|)) InVars {ULTIMATE.start_main_~p~0#1=|v_ULTIMATE.start_main_~p~0#1_6|, ULTIMATE.start_main_#t~nondet3#1=|v_ULTIMATE.start_main_#t~nondet3#1_3|, ULTIMATE.start_main_~q~0#1=|v_ULTIMATE.start_main_~q~0#1_6|} OutVars{ULTIMATE.start_main_~q~0#1=|v_ULTIMATE.start_main_~q~0#1_5|, ULTIMATE.start_main_~p~0#1=|v_ULTIMATE.start_main_~p~0#1_5|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3#1, ULTIMATE.start_main_~p~0#1, ULTIMATE.start_main_~q~0#1] 316#L26-2 [49] L26-2-->L23: Formula: (and (< |v_ULTIMATE.start_main_~q~0#1_9| |v_ULTIMATE.start_main_~p~0#1_9|) (< 0 |v_ULTIMATE.start_main_~q~0#1_9|) (< 0 |v_ULTIMATE.start_main_~p~0#1_9|)) InVars {ULTIMATE.start_main_~q~0#1=|v_ULTIMATE.start_main_~q~0#1_9|, ULTIMATE.start_main_~p~0#1=|v_ULTIMATE.start_main_~p~0#1_9|} OutVars{ULTIMATE.start_main_~q~0#1=|v_ULTIMATE.start_main_~q~0#1_9|, ULTIMATE.start_main_~p~0#1=|v_ULTIMATE.start_main_~p~0#1_9|} AuxVars[] AssignedVars[] 311#L23 [2023-02-13 03:40:36,620 INFO L735 eck$LassoCheckResult]: Loop: 311#L23 [34] L23-->L26-2: Formula: (and (= |v_ULTIMATE.start_main_#t~nondet2#1_3| |v_ULTIMATE.start_main_~p~0#1_10|) (< |v_ULTIMATE.start_main_~q~0#1_11| |v_ULTIMATE.start_main_~p~0#1_11|) (= |v_ULTIMATE.start_main_~q~0#1_10| (+ (- 1) |v_ULTIMATE.start_main_~q~0#1_11|))) InVars {ULTIMATE.start_main_~p~0#1=|v_ULTIMATE.start_main_~p~0#1_11|, ULTIMATE.start_main_#t~nondet2#1=|v_ULTIMATE.start_main_#t~nondet2#1_3|, ULTIMATE.start_main_~q~0#1=|v_ULTIMATE.start_main_~q~0#1_11|} OutVars{ULTIMATE.start_main_~q~0#1=|v_ULTIMATE.start_main_~q~0#1_10|, ULTIMATE.start_main_~p~0#1=|v_ULTIMATE.start_main_~p~0#1_10|} AuxVars[] AssignedVars[ULTIMATE.start_main_~p~0#1, ULTIMATE.start_main_#t~nondet2#1, ULTIMATE.start_main_~q~0#1] 310#L26-2 [49] L26-2-->L23: Formula: (and (< |v_ULTIMATE.start_main_~q~0#1_9| |v_ULTIMATE.start_main_~p~0#1_9|) (< 0 |v_ULTIMATE.start_main_~q~0#1_9|) (< 0 |v_ULTIMATE.start_main_~p~0#1_9|)) InVars {ULTIMATE.start_main_~q~0#1=|v_ULTIMATE.start_main_~q~0#1_9|, ULTIMATE.start_main_~p~0#1=|v_ULTIMATE.start_main_~p~0#1_9|} OutVars{ULTIMATE.start_main_~q~0#1=|v_ULTIMATE.start_main_~q~0#1_9|, ULTIMATE.start_main_~p~0#1=|v_ULTIMATE.start_main_~p~0#1_9|} AuxVars[] AssignedVars[] 311#L23 [2023-02-13 03:40:36,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:36,621 INFO L85 PathProgramCache]: Analyzing trace with hash 77261752, now seen corresponding path program 1 times [2023-02-13 03:40:36,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:36,621 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192600853] [2023-02-13 03:40:36,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:36,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:36,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:36,632 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:36,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:36,638 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:36,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:36,639 INFO L85 PathProgramCache]: Analyzing trace with hash 2064, now seen corresponding path program 2 times [2023-02-13 03:40:36,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:36,639 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347199726] [2023-02-13 03:40:36,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:36,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:36,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:36,643 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:36,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:36,646 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:36,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:36,647 INFO L85 PathProgramCache]: Analyzing trace with hash 1234100743, now seen corresponding path program 2 times [2023-02-13 03:40:36,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:36,647 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716650387] [2023-02-13 03:40:36,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:36,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:36,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:36,651 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:36,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:36,654 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:36,672 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:36,672 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:36,672 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:36,672 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:36,672 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-13 03:40:36,672 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:36,672 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:36,672 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:36,672 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration6_Loop [2023-02-13 03:40:36,672 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:36,672 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:36,673 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:36,674 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 03:40:36,679 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 03:40:36,697 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:36,697 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-13 03:40:36,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:36,697 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:36,698 INFO L229 MonitoredProcess]: Starting monitored process 25 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:36,699 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2023-02-13 03:40:36,699 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:36,699 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:36,708 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:36,708 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:36,722 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2023-02-13 03:40:36,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:36,723 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:36,723 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 03:40:36,724 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 03:40:36,724 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:36,724 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:36,753 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 03:40:36,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:36,754 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:36,755 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 03:40:36,756 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 03:40:36,757 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-13 03:40:36,757 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:36,848 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-13 03:40:36,850 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 03:40:36,850 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:36,850 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:36,851 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:36,851 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:36,851 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-13 03:40:36,851 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:36,851 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:36,851 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:36,851 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration6_Loop [2023-02-13 03:40:36,851 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:36,851 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:36,852 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 03:40:36,862 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 03:40:36,864 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 03:40:36,908 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:36,908 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-13 03:40:36,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:36,908 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:36,909 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 03:40:36,910 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 03:40:36,910 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 03:40:36,915 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:36,915 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:40:36,916 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:36,916 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:36,916 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:36,918 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:40:36,918 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:40:36,924 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-13 03:40:36,928 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-02-13 03:40:36,928 INFO L444 ModelExtractionUtils]: 3 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-13 03:40:36,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:36,928 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:36,930 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 03:40:36,932 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 03:40:36,932 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-13 03:40:36,932 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-13 03:40:36,933 INFO L513 LassoAnalysis]: Proved termination. [2023-02-13 03:40:36,933 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~q~0#1) = 1*ULTIMATE.start_main_~q~0#1 Supporting invariants [] [2023-02-13 03:40:36,953 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 03:40:36,954 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-13 03:40:36,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:36,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:36,975 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-13 03:40:36,976 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:36,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:36,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-13 03:40:36,988 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:37,000 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 03:40:37,002 INFO L100 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2023-02-13 03:40:37,002 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 03:40:37,003 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 12 states and 17 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:37,036 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 12 states and 17 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 22 states and 28 transitions. Complement of second has 6 states. [2023-02-13 03:40:37,036 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 03:40:37,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:37,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2023-02-13 03:40:37,038 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 5 letters. Loop has 2 letters. [2023-02-13 03:40:37,039 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:37,039 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 7 letters. Loop has 2 letters. [2023-02-13 03:40:37,040 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:37,040 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 5 letters. Loop has 4 letters. [2023-02-13 03:40:37,040 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:37,042 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 28 transitions. [2023-02-13 03:40:37,043 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-13 03:40:37,044 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 0 states and 0 transitions. [2023-02-13 03:40:37,044 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-02-13 03:40:37,044 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-02-13 03:40:37,045 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-02-13 03:40:37,045 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-13 03:40:37,045 INFO L220 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-13 03:40:37,045 INFO L242 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-13 03:40:37,046 INFO L426 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-13 03:40:37,046 INFO L333 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2023-02-13 03:40:37,046 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-02-13 03:40:37,046 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-13 03:40:37,046 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-02-13 03:40:37,057 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.02 03:40:37 BasicIcfg [2023-02-13 03:40:37,057 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-02-13 03:40:37,058 INFO L158 Benchmark]: Toolchain (without parser) took 3098.61ms. 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: -373.8MB). Peak memory consumption was 69.3MB. Max. memory is 42.9GB. [2023-02-13 03:40:37,058 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 2.1GB. Free memory is still 2.1GB. There was no memory consumed. Max. memory is 42.9GB. [2023-02-13 03:40:37,058 INFO L158 Benchmark]: CACSL2BoogieTranslator took 118.33ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 10.2MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. [2023-02-13 03:40:37,059 INFO L158 Benchmark]: Boogie Procedure Inliner took 14.87ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 42.9GB. [2023-02-13 03:40:37,059 INFO L158 Benchmark]: Boogie Preprocessor took 8.37ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 1.1MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. [2023-02-13 03:40:37,059 INFO L158 Benchmark]: RCFGBuilder took 172.91ms. 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 03:40:37,059 INFO L158 Benchmark]: BlockEncodingV2 took 63.03ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 4.6MB). There was no memory consumed. Max. memory is 42.9GB. [2023-02-13 03:40:37,059 INFO L158 Benchmark]: TraceAbstraction took 13.17ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 2.3MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. [2023-02-13 03:40:37,060 INFO L158 Benchmark]: BuchiAutomizer took 2703.05ms. 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: -404.9MB). Peak memory consumption was 35.8MB. Max. memory is 42.9GB. [2023-02-13 03:40:37,061 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 9 locations, 12 edges - StatisticsResult: Encoded RCFG 4 locations, 7 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 2.1GB. Free memory is still 2.1GB. There was no memory consumed. Max. memory is 42.9GB. * CACSL2BoogieTranslator took 118.33ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 10.2MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. * Boogie Procedure Inliner took 14.87ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 42.9GB. * Boogie Preprocessor took 8.37ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 1.1MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. * RCFGBuilder took 172.91ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. * BlockEncodingV2 took 63.03ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 4.6MB). There was no memory consumed. Max. memory is 42.9GB. * TraceAbstraction took 13.17ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 2.3MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. * BuchiAutomizer took 2703.05ms. 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: -404.9MB). Peak memory consumption was 35.8MB. Max. memory is 42.9GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (2 trivial, 0 deterministic, 4 nondeterministic). One nondeterministic module has affine ranking function q and consists of 3 locations. One nondeterministic module has affine ranking function p and consists of 4 locations. One nondeterministic module has affine ranking function p and consists of 9 locations. One nondeterministic module has affine ranking function q and consists of 4 locations. 2 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.6s and 7 iterations. TraceHistogramMax:1. Analysis of lassos took 1.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 13 StatesRemovedByMinimization, 4 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 [4, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/2 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 47 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 44 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 27 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 124 IncrementalHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 27 mSolverCounterUnsat, 10 mSDtfsCounter, 124 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI2 SFLT4 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital19 mio100 ax162 hnf100 lsp61 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq152 hnf93 smp100 dnf100 smp100 tf107 neg100 sie120 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 41ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s 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 03:40:37,105 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2023-02-13 03:40:37,307 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 03:40:37,508 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...