NO This is Ultimate 0.2.2-dev-e7f90c1-m [2023-02-13 03:39:41,035 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-13 03:39:41,036 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-13 03:39:41,051 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-13 03:39:41,052 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-13 03:39:41,052 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-13 03:39:41,053 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-13 03:39:41,054 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-13 03:39:41,055 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-13 03:39:41,055 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-13 03:39:41,056 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-13 03:39:41,056 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-13 03:39:41,057 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-13 03:39:41,057 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-13 03:39:41,058 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-13 03:39:41,058 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-13 03:39:41,059 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-13 03:39:41,059 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-13 03:39:41,060 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-13 03:39:41,061 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-13 03:39:41,062 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2023-02-13 03:39:41,062 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-13 03:39:41,063 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-13 03:39:41,063 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-13 03:39:41,064 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-13 03:39:41,065 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-13 03:39:41,065 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-13 03:39:41,065 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-13 03:39:41,066 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-13 03:39:41,066 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-13 03:39:41,066 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-13 03:39:41,067 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-13 03:39:41,067 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-13 03:39:41,067 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-13 03:39:41,068 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-13 03:39:41,068 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-13 03:39:41,068 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-13 03:39:41,069 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-13 03:39:41,069 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-13 03:39:41,069 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-13 03:39:41,069 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-13 03:39:41,070 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-13 03:39:41,070 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/Ultimate/./../termcomp2017.epf [2023-02-13 03:39:41,081 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-13 03:39:41,081 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-13 03:39:41,082 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-13 03:39:41,082 INFO L138 SettingsManager]: * Rewrite not-equals=true [2023-02-13 03:39:41,082 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-13 03:39:41,082 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2023-02-13 03:39:41,082 INFO L138 SettingsManager]: * Use SBE=true [2023-02-13 03:39:41,082 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-02-13 03:39:41,082 INFO L138 SettingsManager]: * Use old map elimination=false [2023-02-13 03:39:41,083 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2023-02-13 03:39:41,083 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2023-02-13 03:39:41,083 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2023-02-13 03:39:41,083 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-02-13 03:39:41,083 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2023-02-13 03:39:41,083 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:39:41,083 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-13 03:39:41,083 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-13 03:39:41,083 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-13 03:39:41,083 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-13 03:39:41,083 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-02-13 03:39:41,083 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2023-02-13 03:39:41,084 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-13 03:39:41,084 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-13 03:39:41,084 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2023-02-13 03:39:41,084 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2023-02-13 03:39:41,084 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-13 03:39:41,084 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-13 03:39:41,084 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-13 03:39:41,084 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/export/starexec/sandbox/solver/Ultimate/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-02-13 03:39:41,210 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-13 03:39:41,223 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-13 03:39:41,224 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-13 03:39:41,225 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-13 03:39:41,226 INFO L275 PluginConnector]: CDTParser initialized [2023-02-13 03:39:41,226 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2023-02-13 03:39:41,264 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/10e61e4f3fe94e888158aa7342b3450e/FLAG12254db7f [2023-02-13 03:39:41,618 INFO L306 CDTParser]: Found 1 translation units. [2023-02-13 03:39:41,618 INFO L160 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2023-02-13 03:39:41,623 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/10e61e4f3fe94e888158aa7342b3450e/FLAG12254db7f [2023-02-13 03:39:42,063 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/10e61e4f3fe94e888158aa7342b3450e [2023-02-13 03:39:42,066 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-13 03:39:42,067 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2023-02-13 03:39:42,069 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-13 03:39:42,069 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-13 03:39:42,072 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-13 03:39:42,072 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.02 03:39:42" (1/1) ... [2023-02-13 03:39:42,073 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74dae1ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:39:42, skipping insertion in model container [2023-02-13 03:39:42,073 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.02 03:39:42" (1/1) ... [2023-02-13 03:39:42,087 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-13 03:39:42,108 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-13 03:39:42,192 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-13 03:39:42,194 INFO L203 MainTranslator]: Completed pre-run [2023-02-13 03:39:42,201 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-13 03:39:42,208 INFO L208 MainTranslator]: Completed translation [2023-02-13 03:39:42,208 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:39:42 WrapperNode [2023-02-13 03:39:42,208 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-13 03:39:42,208 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-13 03:39:42,209 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-13 03:39:42,209 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-13 03:39:42,217 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:39:42" (1/1) ... [2023-02-13 03:39:42,221 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:39:42" (1/1) ... [2023-02-13 03:39:42,234 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 23 [2023-02-13 03:39:42,235 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-13 03:39:42,235 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-13 03:39:42,235 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-13 03:39:42,235 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-13 03:39:42,240 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:39:42" (1/1) ... [2023-02-13 03:39:42,240 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:39:42" (1/1) ... [2023-02-13 03:39:42,240 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:39:42" (1/1) ... [2023-02-13 03:39:42,240 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:39:42" (1/1) ... [2023-02-13 03:39:42,241 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:39:42" (1/1) ... [2023-02-13 03:39:42,243 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:39:42" (1/1) ... [2023-02-13 03:39:42,244 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:39:42" (1/1) ... [2023-02-13 03:39:42,244 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-13 03:39:42,245 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-13 03:39:42,245 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-13 03:39:42,245 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-13 03:39:42,245 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:39:42" (1/1) ... [2023-02-13 03:39:42,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2023-02-13 03:39:42,258 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:39:42,266 INFO L229 MonitoredProcess]: Starting monitored process 1 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) [2023-02-13 03:39:42,268 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (1)] Waiting until timeout for monitored process [2023-02-13 03:39:42,302 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-13 03:39:42,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-13 03:39:42,344 INFO L234 CfgBuilder]: Building ICFG [2023-02-13 03:39:42,346 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-13 03:39:42,403 INFO L275 CfgBuilder]: Performing block encoding [2023-02-13 03:39:42,408 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-13 03:39:42,408 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-13 03:39:42,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:39:42 BoogieIcfgContainer [2023-02-13 03:39:42,409 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-13 03:39:42,409 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2023-02-13 03:39:42,410 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2023-02-13 03:39:42,411 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2023-02-13 03:39:42,411 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:39:42" (1/1) ... [2023-02-13 03:39:42,420 INFO L313 BlockEncoder]: Initial Icfg 8 locations, 10 edges [2023-02-13 03:39:42,421 INFO L258 BlockEncoder]: Using Remove infeasible edges [2023-02-13 03:39:42,421 INFO L263 BlockEncoder]: Using Maximize final states [2023-02-13 03:39:42,421 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2023-02-13 03:39:42,421 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2023-02-13 03:39:42,422 INFO L296 BlockEncoder]: Using Remove sink states [2023-02-13 03:39:42,422 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2023-02-13 03:39:42,422 INFO L179 BlockEncoder]: Using Rewrite not-equals [2023-02-13 03:39:42,430 INFO L185 BlockEncoder]: Using Use SBE [2023-02-13 03:39:42,438 INFO L200 BlockEncoder]: SBE split 3 edges [2023-02-13 03:39:42,441 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2023-02-13 03:39:42,442 INFO L71 MaximizeFinalStates]: 0 new accepting states [2023-02-13 03:39:42,445 INFO L101 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2023-02-13 03:39:42,446 INFO L70 RemoveSinkStates]: Removed 6 edges and 2 locations by removing sink states [2023-02-13 03:39:42,447 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2023-02-13 03:39:42,447 INFO L71 MaximizeFinalStates]: 0 new accepting states [2023-02-13 03:39:42,447 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2023-02-13 03:39:42,447 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2023-02-13 03:39:42,447 INFO L313 BlockEncoder]: Encoded RCFG 3 locations, 6 edges [2023-02-13 03:39:42,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 13.02 03:39:42 BasicIcfg [2023-02-13 03:39:42,448 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2023-02-13 03:39:42,449 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-13 03:39:42,449 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-13 03:39:42,450 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-13 03:39:42,451 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.02 03:39:42" (1/4) ... [2023-02-13 03:39:42,451 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60011bdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.02 03:39:42, skipping insertion in model container [2023-02-13 03:39:42,451 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:39:42" (2/4) ... [2023-02-13 03:39:42,451 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60011bdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.02 03:39:42, skipping insertion in model container [2023-02-13 03:39:42,451 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:39:42" (3/4) ... [2023-02-13 03:39:42,452 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60011bdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.02 03:39:42, skipping insertion in model container [2023-02-13 03:39:42,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 13.02 03:39:42" (4/4) ... [2023-02-13 03:39:42,452 INFO L111 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2023-02-13 03:39:42,462 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2023-02-13 03:39:42,462 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 0 error locations. [2023-02-13 03:39:42,463 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60011bdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.02 03:39:42, skipping insertion in model container [2023-02-13 03:39:42,463 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-13 03:39:42,463 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-02-13 03:39:42,464 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2023-02-13 03:39:42,466 INFO L275 PluginConnector]: BuchiAutomizer initialized [2023-02-13 03:39:42,466 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:39:42,466 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.02 03:39:42" (1/4) ... [2023-02-13 03:39:42,466 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@321c1dd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.02 03:39:42, skipping insertion in model container [2023-02-13 03:39:42,466 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:39:42,467 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:39:42" (2/4) ... [2023-02-13 03:39:42,467 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@321c1dd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.02 03:39:42, skipping insertion in model container [2023-02-13 03:39:42,467 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:39:42,467 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:39:42" (3/4) ... [2023-02-13 03:39:42,467 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@321c1dd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.02 03:39:42, skipping insertion in model container [2023-02-13 03:39:42,467 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:39:42,467 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 13.02 03:39:42" (4/4) ... [2023-02-13 03:39:42,468 INFO L322 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2023-02-13 03:39:42,496 INFO L301 stractBuchiCegarLoop]: Interprodecural is true [2023-02-13 03:39:42,496 INFO L302 stractBuchiCegarLoop]: Hoare is true [2023-02-13 03:39:42,496 INFO L303 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-02-13 03:39:42,496 INFO L304 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-02-13 03:39:42,496 INFO L305 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-02-13 03:39:42,496 INFO L306 stractBuchiCegarLoop]: Difference is false [2023-02-13 03:39:42,496 INFO L307 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-02-13 03:39:42,496 INFO L311 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-02-13 03:39:42,500 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:39:42,511 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-13 03:39:42,511 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:39:42,511 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:39:42,514 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2023-02-13 03:39:42,514 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-13 03:39:42,514 INFO L333 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-02-13 03:39:42,515 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:39:42,515 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-13 03:39:42,515 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:39:42,515 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:39:42,515 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2023-02-13 03:39:42,515 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-13 03:39:42,518 INFO L733 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [46] ULTIMATE.startENTRY-->L17-2: Formula: (and (= |v_ULTIMATE.start_main_~res~0#1_6| 0) (= |v_ULTIMATE.start_main_~y~0#1_10| |v_ULTIMATE.start_main_~z~0#1_7|)) InVars {} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_8|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_10|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_4|, ULTIMATE.start_main_~res~0#1=|v_ULTIMATE.start_main_~res~0#1_6|, ULTIMATE.start_main_#t~nondet1#1=|v_ULTIMATE.start_main_#t~nondet1#1_3|, ULTIMATE.start_main_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_7|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_~res~0#1, ULTIMATE.start_main_#t~nondet1#1, ULTIMATE.start_main_~z~0#1, ULTIMATE.start_main_#t~nondet0#1] 2#L17-2true [2023-02-13 03:39:42,518 INFO L735 eck$LassoCheckResult]: Loop: 2#L17-2true [37] L17-2-->L17: Formula: (and (< 0 |v_ULTIMATE.start_main_~z~0#1_5|) (= |v_ULTIMATE.start_main_~y~0#1_7| 0)) InVars {ULTIMATE.start_main_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_7|} OutVars{ULTIMATE.start_main_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_7|} AuxVars[] AssignedVars[] 3#L17true [28] L17-->L17-2: Formula: (and (= |v_ULTIMATE.start_main_~y~0#1_9| 0) (= |v_ULTIMATE.start_main_~res~0#1_4| (+ |v_ULTIMATE.start_main_~res~0#1_5| 1)) (= |v_ULTIMATE.start_main_~y~0#1_8| |v_ULTIMATE.start_main_~z~0#1_6|)) InVars {ULTIMATE.start_main_~res~0#1=|v_ULTIMATE.start_main_~res~0#1_5|, ULTIMATE.start_main_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_6|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_9|} OutVars{ULTIMATE.start_main_~res~0#1=|v_ULTIMATE.start_main_~res~0#1_4|, ULTIMATE.start_main_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_6|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_8|} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_~res~0#1] 2#L17-2true [2023-02-13 03:39:42,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:39:42,522 INFO L85 PathProgramCache]: Analyzing trace with hash 77, now seen corresponding path program 1 times [2023-02-13 03:39:42,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:39:42,527 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301564885] [2023-02-13 03:39:42,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:39:42,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:39:42,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:39:42,571 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:39:42,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:39:42,582 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:39:42,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:39:42,584 INFO L85 PathProgramCache]: Analyzing trace with hash 2136, now seen corresponding path program 1 times [2023-02-13 03:39:42,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:39:42,584 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575942248] [2023-02-13 03:39:42,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:39:42,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:39:42,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:39:42,591 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:39:42,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:39:42,594 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:39:42,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:39:42,595 INFO L85 PathProgramCache]: Analyzing trace with hash 75172, now seen corresponding path program 1 times [2023-02-13 03:39:42,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:39:42,595 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875260101] [2023-02-13 03:39:42,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:39:42,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:39:42,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:39:42,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 03:39:42,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-13 03:39:42,641 INFO L335 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875260101] [2023-02-13 03:39:42,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875260101] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-13 03:39:42,641 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-13 03:39:42,642 ERROR L191 FreeRefinementEngine]: {11#true} [13#(or (= |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~z~0#1|) (= |ULTIMATE.start_main_~z~0#1| 0)), 12#false] {12#false} [2023-02-13 03:39:42,642 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-13 03:39:42,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496082631] [2023-02-13 03:39:42,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-13 03:39:42,668 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:39:42,669 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:39:42,669 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:39:42,669 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:39:42,669 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-13 03:39:42,669 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:39:42,669 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:39:42,669 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:39:42,669 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2023-02-13 03:39:42,669 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:39:42,670 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:39:42,677 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:39:42,686 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:39:42,688 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:39:42,690 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:39:42,725 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:39:42,725 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-13 03:39:42,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:39:42,727 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:39:42,727 INFO L229 MonitoredProcess]: Starting monitored process 2 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:39:42,729 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-02-13 03:39:42,729 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:39:42,729 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:39:42,754 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-02-13 03:39:42,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:39:42,754 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:39:42,755 INFO L229 MonitoredProcess]: Starting monitored process 3 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:39:42,756 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-02-13 03:39:42,756 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-13 03:39:42,756 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:39:42,792 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-13 03:39:42,794 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2023-02-13 03:39:42,794 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:39:42,794 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:39:42,794 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:39:42,794 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:39:42,794 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-13 03:39:42,794 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:39:42,794 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:39:42,795 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:39:42,795 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2023-02-13 03:39:42,795 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:39:42,795 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:39:42,796 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:39:42,808 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:39:42,813 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:39:42,816 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:39:42,842 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:39:42,844 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-13 03:39:42,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:39:42,845 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:39:42,846 INFO L229 MonitoredProcess]: Starting monitored process 4 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:39:42,847 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-02-13 03:39:42,849 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:39:42,853 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:39:42,853 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:39:42,854 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:39:42,854 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:39:42,854 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:39:42,855 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:39:42,856 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:39:42,857 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-13 03:39:42,879 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-13 03:39:42,879 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-13 03:39:42,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:39:42,881 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:39:42,886 INFO L229 MonitoredProcess]: Starting monitored process 5 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:39:42,887 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-02-13 03:39:42,888 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-13 03:39:42,888 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-13 03:39:42,888 INFO L513 LassoAnalysis]: Proved termination. [2023-02-13 03:39:42,889 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = -2*ULTIMATE.start_main_~y~0#1 + 1 Supporting invariants [] [2023-02-13 03:39:42,905 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2023-02-13 03:39:42,909 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-13 03:39:42,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:39:42,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:39:42,942 INFO L263 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-13 03:39:42,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:39:42,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:39:42,950 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-13 03:39:42,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:39:42,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 03:39:42,999 INFO L100 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2023-02-13 03:39:43,003 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 03:39:43,005 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) 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 03:39:43,064 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). 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 19 states and 45 transitions. Complement of second has 11 states. [2023-02-13 03:39:43,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 4 non-accepting loop states 2 accepting loop states [2023-02-13 03:39:43,068 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 03:39:43,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 29 transitions. [2023-02-13 03:39:43,070 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 29 transitions. Stem has 1 letters. Loop has 2 letters. [2023-02-13 03:39:43,070 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:39:43,070 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 29 transitions. Stem has 3 letters. Loop has 2 letters. [2023-02-13 03:39:43,070 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:39:43,070 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 29 transitions. Stem has 1 letters. Loop has 4 letters. [2023-02-13 03:39:43,070 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:39:43,074 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 45 transitions. [2023-02-13 03:39:43,075 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2023-02-13 03:39:43,077 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 17 states and 38 transitions. [2023-02-13 03:39:43,077 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2023-02-13 03:39:43,077 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2023-02-13 03:39:43,078 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 38 transitions. [2023-02-13 03:39:43,078 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-13 03:39:43,078 INFO L220 hiAutomatonCegarLoop]: Abstraction has 17 states and 38 transitions. [2023-02-13 03:39:43,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 38 transitions. [2023-02-13 03:39:43,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 12. [2023-02-13 03:39:43,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 2.5) internal successors, (30), 11 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:39:43,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 30 transitions. [2023-02-13 03:39:43,094 INFO L242 hiAutomatonCegarLoop]: Abstraction has 12 states and 30 transitions. [2023-02-13 03:39:43,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-13 03:39:43,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-13 03:39:43,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-13 03:39:43,096 INFO L87 Difference]: Start difference. First operand 12 states and 30 transitions. 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 03:39:43,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-13 03:39:43,107 INFO L93 Difference]: Finished difference Result 14 states and 30 transitions. [2023-02-13 03:39:43,107 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 30 transitions. [2023-02-13 03:39:43,108 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2023-02-13 03:39:43,109 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 14 states and 30 transitions. [2023-02-13 03:39:43,109 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2023-02-13 03:39:43,109 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2023-02-13 03:39:43,109 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 30 transitions. [2023-02-13 03:39:43,109 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-13 03:39:43,109 INFO L220 hiAutomatonCegarLoop]: Abstraction has 14 states and 30 transitions. [2023-02-13 03:39:43,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 30 transitions. [2023-02-13 03:39:43,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2023-02-13 03:39:43,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 2.076923076923077) internal successors, (27), 12 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:39:43,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 27 transitions. [2023-02-13 03:39:43,111 INFO L242 hiAutomatonCegarLoop]: Abstraction has 13 states and 27 transitions. [2023-02-13 03:39:43,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-13 03:39:43,113 INFO L426 stractBuchiCegarLoop]: Abstraction has 13 states and 27 transitions. [2023-02-13 03:39:43,113 INFO L333 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-02-13 03:39:43,113 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 27 transitions. [2023-02-13 03:39:43,114 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2023-02-13 03:39:43,114 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:39:43,114 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:39:43,114 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-02-13 03:39:43,114 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-13 03:39:43,114 INFO L733 eck$LassoCheckResult]: Stem: 103#ULTIMATE.startENTRY [46] ULTIMATE.startENTRY-->L17-2: Formula: (and (= |v_ULTIMATE.start_main_~res~0#1_6| 0) (= |v_ULTIMATE.start_main_~y~0#1_10| |v_ULTIMATE.start_main_~z~0#1_7|)) InVars {} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_8|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_10|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_4|, ULTIMATE.start_main_~res~0#1=|v_ULTIMATE.start_main_~res~0#1_6|, ULTIMATE.start_main_#t~nondet1#1=|v_ULTIMATE.start_main_#t~nondet1#1_3|, ULTIMATE.start_main_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_7|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_~res~0#1, ULTIMATE.start_main_#t~nondet1#1, ULTIMATE.start_main_~z~0#1, ULTIMATE.start_main_#t~nondet0#1] 104#L17-2 [38] L17-2-->L17: Formula: (and (< 0 |v_ULTIMATE.start_main_~z~0#1_5|) (< 0 |v_ULTIMATE.start_main_~y~0#1_7|) (< 0 |v_ULTIMATE.start_main_~x~0#1_7|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_7|, ULTIMATE.start_main_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_7|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_7|, ULTIMATE.start_main_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_7|} AuxVars[] AssignedVars[] 102#L17 [44] L17-->L17-2: Formula: (and (= |v_ULTIMATE.start_main_~y~0#1_1| (+ (- 1) |v_ULTIMATE.start_main_~y~0#1_2|)) (= |v_ULTIMATE.start_main_~x~0#1_1| (+ |v_ULTIMATE.start_main_~x~0#1_2| 1)) (< |v_ULTIMATE.start_main_~y~0#1_2| 0)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_2|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_2|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_1|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1] 98#L17-2 [2023-02-13 03:39:43,114 INFO L735 eck$LassoCheckResult]: Loop: 98#L17-2 [37] L17-2-->L17: Formula: (and (< 0 |v_ULTIMATE.start_main_~z~0#1_5|) (= |v_ULTIMATE.start_main_~y~0#1_7| 0)) InVars {ULTIMATE.start_main_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_7|} OutVars{ULTIMATE.start_main_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_7|} AuxVars[] AssignedVars[] 97#L17 [44] L17-->L17-2: Formula: (and (= |v_ULTIMATE.start_main_~y~0#1_1| (+ (- 1) |v_ULTIMATE.start_main_~y~0#1_2|)) (= |v_ULTIMATE.start_main_~x~0#1_1| (+ |v_ULTIMATE.start_main_~x~0#1_2| 1)) (< |v_ULTIMATE.start_main_~y~0#1_2| 0)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_2|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_2|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_1|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1] 98#L17-2 [2023-02-13 03:39:43,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:39:43,115 INFO L85 PathProgramCache]: Analyzing trace with hash 75219, now seen corresponding path program 1 times [2023-02-13 03:39:43,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:39:43,115 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828337317] [2023-02-13 03:39:43,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:39:43,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:39:43,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:39:43,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 03:39:43,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-13 03:39:43,126 INFO L335 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828337317] [2023-02-13 03:39:43,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828337317] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-13 03:39:43,126 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-13 03:39:43,126 ERROR L191 FreeRefinementEngine]: {111#true} [111#true, 113#(<= 1 |ULTIMATE.start_main_~y~0#1|)] {112#false} [2023-02-13 03:39:43,127 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-13 03:39:43,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877429168] [2023-02-13 03:39:43,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-13 03:39:43,127 INFO L738 eck$LassoCheckResult]: stem already infeasible [2023-02-13 03:39:43,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:39:43,127 INFO L85 PathProgramCache]: Analyzing trace with hash 2152, now seen corresponding path program 1 times [2023-02-13 03:39:43,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:39:43,127 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218845917] [2023-02-13 03:39:43,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:39:43,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:39:43,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:39:43,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 03:39:43,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-13 03:39:43,134 INFO L335 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218845917] [2023-02-13 03:39:43,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218845917] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-13 03:39:43,134 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-13 03:39:43,134 ERROR L191 FreeRefinementEngine]: {114#true} [116#(<= 0 |ULTIMATE.start_main_~y~0#1|)] {115#false} [2023-02-13 03:39:43,135 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-02-13 03:39:43,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136823931] [2023-02-13 03:39:43,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-13 03:39:43,135 INFO L750 eck$LassoCheckResult]: loop already infeasible [2023-02-13 03:39:43,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-13 03:39:43,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-13 03:39:43,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-13 03:39:43,136 INFO L87 Difference]: Start difference. First operand 13 states and 27 transitions. cyclomatic complexity: 17 Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:39:43,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-13 03:39:43,141 INFO L93 Difference]: Finished difference Result 8 states and 12 transitions. [2023-02-13 03:39:43,141 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 12 transitions. [2023-02-13 03:39:43,141 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-02-13 03:39:43,141 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 8 states and 12 transitions. [2023-02-13 03:39:43,141 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2023-02-13 03:39:43,141 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2023-02-13 03:39:43,141 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 12 transitions. [2023-02-13 03:39:43,142 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-13 03:39:43,142 INFO L220 hiAutomatonCegarLoop]: Abstraction has 8 states and 12 transitions. [2023-02-13 03:39:43,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 12 transitions. [2023-02-13 03:39:43,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2023-02-13 03:39:43,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.5) internal successors, (12), 7 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:39:43,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 12 transitions. [2023-02-13 03:39:43,142 INFO L242 hiAutomatonCegarLoop]: Abstraction has 8 states and 12 transitions. [2023-02-13 03:39:43,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-13 03:39:43,143 INFO L426 stractBuchiCegarLoop]: Abstraction has 8 states and 12 transitions. [2023-02-13 03:39:43,143 INFO L333 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-02-13 03:39:43,143 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 12 transitions. [2023-02-13 03:39:43,144 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-02-13 03:39:43,144 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:39:43,144 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:39:43,144 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-02-13 03:39:43,144 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-13 03:39:43,144 INFO L733 eck$LassoCheckResult]: Stem: 131#ULTIMATE.startENTRY [46] ULTIMATE.startENTRY-->L17-2: Formula: (and (= |v_ULTIMATE.start_main_~res~0#1_6| 0) (= |v_ULTIMATE.start_main_~y~0#1_10| |v_ULTIMATE.start_main_~z~0#1_7|)) InVars {} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_8|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_10|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_4|, ULTIMATE.start_main_~res~0#1=|v_ULTIMATE.start_main_~res~0#1_6|, ULTIMATE.start_main_#t~nondet1#1=|v_ULTIMATE.start_main_#t~nondet1#1_3|, ULTIMATE.start_main_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_7|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_~res~0#1, ULTIMATE.start_main_#t~nondet1#1, ULTIMATE.start_main_~z~0#1, ULTIMATE.start_main_#t~nondet0#1] 132#L17-2 [38] L17-2-->L17: Formula: (and (< 0 |v_ULTIMATE.start_main_~z~0#1_5|) (< 0 |v_ULTIMATE.start_main_~y~0#1_7|) (< 0 |v_ULTIMATE.start_main_~x~0#1_7|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_7|, ULTIMATE.start_main_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_7|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_7|, ULTIMATE.start_main_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_7|} AuxVars[] AssignedVars[] 129#L17 [45] L17-->L17-2: Formula: (and (= |v_ULTIMATE.start_main_~y~0#1_1| (+ (- 1) |v_ULTIMATE.start_main_~y~0#1_2|)) (> |v_ULTIMATE.start_main_~y~0#1_2| 0) (= |v_ULTIMATE.start_main_~x~0#1_1| (+ |v_ULTIMATE.start_main_~x~0#1_2| 1))) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_2|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_2|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_1|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1] 130#L17-2 [2023-02-13 03:39:43,144 INFO L735 eck$LassoCheckResult]: Loop: 130#L17-2 [37] L17-2-->L17: Formula: (and (< 0 |v_ULTIMATE.start_main_~z~0#1_5|) (= |v_ULTIMATE.start_main_~y~0#1_7| 0)) InVars {ULTIMATE.start_main_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_7|} OutVars{ULTIMATE.start_main_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_7|} AuxVars[] AssignedVars[] 126#L17 [45] L17-->L17-2: Formula: (and (= |v_ULTIMATE.start_main_~y~0#1_1| (+ (- 1) |v_ULTIMATE.start_main_~y~0#1_2|)) (> |v_ULTIMATE.start_main_~y~0#1_2| 0) (= |v_ULTIMATE.start_main_~x~0#1_1| (+ |v_ULTIMATE.start_main_~x~0#1_2| 1))) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_2|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_2|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_1|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1] 130#L17-2 [2023-02-13 03:39:43,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:39:43,145 INFO L85 PathProgramCache]: Analyzing trace with hash 75220, now seen corresponding path program 1 times [2023-02-13 03:39:43,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:39:43,145 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120875357] [2023-02-13 03:39:43,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:39:43,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:39:43,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:39:43,148 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:39:43,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:39:43,151 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:39:43,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:39:43,151 INFO L85 PathProgramCache]: Analyzing trace with hash 2153, now seen corresponding path program 1 times [2023-02-13 03:39:43,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:39:43,152 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419142325] [2023-02-13 03:39:43,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:39:43,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:39:43,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:39:43,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 03:39:43,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-13 03:39:43,159 INFO L335 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419142325] [2023-02-13 03:39:43,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419142325] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-13 03:39:43,159 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-13 03:39:43,159 ERROR L191 FreeRefinementEngine]: {136#true} [138#(<= |ULTIMATE.start_main_~y~0#1| 0)] {137#false} [2023-02-13 03:39:43,159 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-02-13 03:39:43,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717309134] [2023-02-13 03:39:43,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-13 03:39:43,160 INFO L750 eck$LassoCheckResult]: loop already infeasible [2023-02-13 03:39:43,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-13 03:39:43,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-13 03:39:43,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-13 03:39:43,160 INFO L87 Difference]: Start difference. First operand 8 states and 12 transitions. cyclomatic complexity: 6 Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:39:43,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-13 03:39:43,165 INFO L93 Difference]: Finished difference Result 9 states and 13 transitions. [2023-02-13 03:39:43,166 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 13 transitions. [2023-02-13 03:39:43,166 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-13 03:39:43,166 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 9 states and 13 transitions. [2023-02-13 03:39:43,166 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2023-02-13 03:39:43,166 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2023-02-13 03:39:43,166 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 13 transitions. [2023-02-13 03:39:43,166 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-13 03:39:43,166 INFO L220 hiAutomatonCegarLoop]: Abstraction has 9 states and 13 transitions. [2023-02-13 03:39:43,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 13 transitions. [2023-02-13 03:39:43,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2023-02-13 03:39:43,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 8 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:39:43,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 13 transitions. [2023-02-13 03:39:43,167 INFO L242 hiAutomatonCegarLoop]: Abstraction has 9 states and 13 transitions. [2023-02-13 03:39:43,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-13 03:39:43,168 INFO L426 stractBuchiCegarLoop]: Abstraction has 9 states and 13 transitions. [2023-02-13 03:39:43,168 INFO L333 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-02-13 03:39:43,168 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 13 transitions. [2023-02-13 03:39:43,169 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-13 03:39:43,169 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:39:43,169 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:39:43,169 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-02-13 03:39:43,169 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-13 03:39:43,169 INFO L733 eck$LassoCheckResult]: Stem: 154#ULTIMATE.startENTRY [46] ULTIMATE.startENTRY-->L17-2: Formula: (and (= |v_ULTIMATE.start_main_~res~0#1_6| 0) (= |v_ULTIMATE.start_main_~y~0#1_10| |v_ULTIMATE.start_main_~z~0#1_7|)) InVars {} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_8|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_10|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_4|, ULTIMATE.start_main_~res~0#1=|v_ULTIMATE.start_main_~res~0#1_6|, ULTIMATE.start_main_#t~nondet1#1=|v_ULTIMATE.start_main_#t~nondet1#1_3|, ULTIMATE.start_main_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_7|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_~res~0#1, ULTIMATE.start_main_#t~nondet1#1, ULTIMATE.start_main_~z~0#1, ULTIMATE.start_main_#t~nondet0#1] 155#L17-2 [38] L17-2-->L17: Formula: (and (< 0 |v_ULTIMATE.start_main_~z~0#1_5|) (< 0 |v_ULTIMATE.start_main_~y~0#1_7|) (< 0 |v_ULTIMATE.start_main_~x~0#1_7|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_7|, ULTIMATE.start_main_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_7|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_7|, ULTIMATE.start_main_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_7|} AuxVars[] AssignedVars[] 152#L17 [45] L17-->L17-2: Formula: (and (= |v_ULTIMATE.start_main_~y~0#1_1| (+ (- 1) |v_ULTIMATE.start_main_~y~0#1_2|)) (> |v_ULTIMATE.start_main_~y~0#1_2| 0) (= |v_ULTIMATE.start_main_~x~0#1_1| (+ |v_ULTIMATE.start_main_~x~0#1_2| 1))) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_2|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_2|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_1|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1] 153#L17-2 [2023-02-13 03:39:43,169 INFO L735 eck$LassoCheckResult]: Loop: 153#L17-2 [38] L17-2-->L17: Formula: (and (< 0 |v_ULTIMATE.start_main_~z~0#1_5|) (< 0 |v_ULTIMATE.start_main_~y~0#1_7|) (< 0 |v_ULTIMATE.start_main_~x~0#1_7|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_7|, ULTIMATE.start_main_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_7|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_7|, ULTIMATE.start_main_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_7|} AuxVars[] AssignedVars[] 149#L17 [45] L17-->L17-2: Formula: (and (= |v_ULTIMATE.start_main_~y~0#1_1| (+ (- 1) |v_ULTIMATE.start_main_~y~0#1_2|)) (> |v_ULTIMATE.start_main_~y~0#1_2| 0) (= |v_ULTIMATE.start_main_~x~0#1_1| (+ |v_ULTIMATE.start_main_~x~0#1_2| 1))) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_2|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_2|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_1|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1] 153#L17-2 [2023-02-13 03:39:43,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:39:43,169 INFO L85 PathProgramCache]: Analyzing trace with hash 75220, now seen corresponding path program 2 times [2023-02-13 03:39:43,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:39:43,170 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191392298] [2023-02-13 03:39:43,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:39:43,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:39:43,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:39:43,173 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:39:43,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:39:43,176 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:39:43,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:39:43,176 INFO L85 PathProgramCache]: Analyzing trace with hash 2184, now seen corresponding path program 1 times [2023-02-13 03:39:43,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:39:43,176 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040715439] [2023-02-13 03:39:43,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:39:43,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:39:43,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:39:43,179 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:39:43,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:39:43,181 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:39:43,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:39:43,181 INFO L85 PathProgramCache]: Analyzing trace with hash 72287643, now seen corresponding path program 3 times [2023-02-13 03:39:43,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:39:43,182 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545854947] [2023-02-13 03:39:43,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:39:43,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:39:43,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:39:43,186 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:39:43,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:39:43,189 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:39:43,204 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:39:43,204 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:39:43,204 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:39:43,204 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:39:43,204 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-13 03:39:43,204 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:39:43,205 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:39:43,205 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:39:43,205 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2023-02-13 03:39:43,205 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:39:43,205 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:39:43,205 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:39:43,207 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:39:43,209 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:39:43,210 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:39:43,213 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 03:39:43,240 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:39:43,240 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-13 03:39:43,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:39:43,240 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:39:43,241 INFO L229 MonitoredProcess]: Starting monitored process 6 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:39:43,242 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-02-13 03:39:43,245 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:39:43,245 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:39:43,253 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:39:43,253 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:39:43,267 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2023-02-13 03:39:43,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:39:43,268 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:39:43,269 INFO L229 MonitoredProcess]: Starting monitored process 7 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:39:43,270 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-02-13 03:39:43,270 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:39:43,271 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:39:43,292 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2023-02-13 03:39:43,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:39:43,292 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:39:43,293 INFO L229 MonitoredProcess]: Starting monitored process 8 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:39:43,294 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-02-13 03:39:43,294 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-13 03:39:43,294 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:39:43,328 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-13 03:39:43,332 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2023-02-13 03:39:43,332 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:39:43,332 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:39:43,332 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:39:43,333 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:39:43,333 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-13 03:39:43,333 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:39:43,333 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:39:43,333 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:39:43,333 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2023-02-13 03:39:43,333 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:39:43,333 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:39:43,334 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:39:43,338 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:39:43,348 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:39:43,353 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:39:43,361 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:39:43,387 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:39:43,387 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-13 03:39:43,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:39:43,388 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:39:43,389 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 03:39:43,398 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 03:39:43,399 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:39:43,403 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:39:43,403 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:39:43,403 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:39:43,403 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:39:43,405 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:39:43,405 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:39:43,410 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:39:43,424 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 03:39:43,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:39:43,424 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:39:43,425 INFO L229 MonitoredProcess]: Starting monitored process 10 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:39:43,426 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-02-13 03:39:43,426 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:39:43,430 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:39:43,431 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:39:43,431 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:39:43,431 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:39:43,431 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:39:43,432 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:39:43,432 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:39:43,433 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-13 03:39:43,435 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-13 03:39:43,435 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-13 03:39:43,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:39:43,436 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:39:43,436 INFO L229 MonitoredProcess]: Starting monitored process 11 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:39:43,438 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-02-13 03:39:43,438 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-13 03:39:43,438 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-13 03:39:43,438 INFO L513 LassoAnalysis]: Proved termination. [2023-02-13 03:39:43,438 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2023-02-13 03:39:43,466 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2023-02-13 03:39:43,467 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-13 03:39:43,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:39:43,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:39:43,488 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-13 03:39:43,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:39:43,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:39:43,501 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-13 03:39:43,501 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:39:43,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 03:39:43,520 INFO L100 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2023-02-13 03:39:43,520 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 03:39:43,520 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 9 states and 13 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:39:43,536 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 9 states and 13 transitions. cyclomatic complexity: 6. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 20 states and 31 transitions. Complement of second has 12 states. [2023-02-13 03:39:43,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-02-13 03:39:43,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:39:43,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 14 transitions. [2023-02-13 03:39:43,538 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 3 letters. Loop has 2 letters. [2023-02-13 03:39:43,538 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:39:43,538 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 5 letters. Loop has 2 letters. [2023-02-13 03:39:43,538 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:39:43,538 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 3 letters. Loop has 4 letters. [2023-02-13 03:39:43,539 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:39:43,539 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 31 transitions. [2023-02-13 03:39:43,540 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2023-02-13 03:39:43,540 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 11 states and 16 transitions. [2023-02-13 03:39:43,540 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2023-02-13 03:39:43,540 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2023-02-13 03:39:43,540 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 16 transitions. [2023-02-13 03:39:43,541 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-13 03:39:43,541 INFO L220 hiAutomatonCegarLoop]: Abstraction has 11 states and 16 transitions. [2023-02-13 03:39:43,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 16 transitions. [2023-02-13 03:39:43,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2023-02-13 03:39:43,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 10 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 03:39:43,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 16 transitions. [2023-02-13 03:39:43,542 INFO L242 hiAutomatonCegarLoop]: Abstraction has 11 states and 16 transitions. [2023-02-13 03:39:43,542 INFO L426 stractBuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2023-02-13 03:39:43,542 INFO L333 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-02-13 03:39:43,542 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 16 transitions. [2023-02-13 03:39:43,542 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2023-02-13 03:39:43,542 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:39:43,542 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:39:43,543 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-02-13 03:39:43,543 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-02-13 03:39:43,543 INFO L733 eck$LassoCheckResult]: Stem: 228#ULTIMATE.startENTRY [46] ULTIMATE.startENTRY-->L17-2: Formula: (and (= |v_ULTIMATE.start_main_~res~0#1_6| 0) (= |v_ULTIMATE.start_main_~y~0#1_10| |v_ULTIMATE.start_main_~z~0#1_7|)) InVars {} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_8|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_10|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_4|, ULTIMATE.start_main_~res~0#1=|v_ULTIMATE.start_main_~res~0#1_6|, ULTIMATE.start_main_#t~nondet1#1=|v_ULTIMATE.start_main_#t~nondet1#1_3|, ULTIMATE.start_main_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_7|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_~res~0#1, ULTIMATE.start_main_#t~nondet1#1, ULTIMATE.start_main_~z~0#1, ULTIMATE.start_main_#t~nondet0#1] 229#L17-2 [38] L17-2-->L17: Formula: (and (< 0 |v_ULTIMATE.start_main_~z~0#1_5|) (< 0 |v_ULTIMATE.start_main_~y~0#1_7|) (< 0 |v_ULTIMATE.start_main_~x~0#1_7|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_7|, ULTIMATE.start_main_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_7|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_7|, ULTIMATE.start_main_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_7|} AuxVars[] AssignedVars[] 226#L17 [45] L17-->L17-2: Formula: (and (= |v_ULTIMATE.start_main_~y~0#1_1| (+ (- 1) |v_ULTIMATE.start_main_~y~0#1_2|)) (> |v_ULTIMATE.start_main_~y~0#1_2| 0) (= |v_ULTIMATE.start_main_~x~0#1_1| (+ |v_ULTIMATE.start_main_~x~0#1_2| 1))) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_2|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_2|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_1|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1] 227#L17-2 [2023-02-13 03:39:43,543 INFO L735 eck$LassoCheckResult]: Loop: 227#L17-2 [37] L17-2-->L17: Formula: (and (< 0 |v_ULTIMATE.start_main_~z~0#1_5|) (= |v_ULTIMATE.start_main_~y~0#1_7| 0)) InVars {ULTIMATE.start_main_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_7|} OutVars{ULTIMATE.start_main_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_7|} AuxVars[] AssignedVars[] 224#L17 [28] L17-->L17-2: Formula: (and (= |v_ULTIMATE.start_main_~y~0#1_9| 0) (= |v_ULTIMATE.start_main_~res~0#1_4| (+ |v_ULTIMATE.start_main_~res~0#1_5| 1)) (= |v_ULTIMATE.start_main_~y~0#1_8| |v_ULTIMATE.start_main_~z~0#1_6|)) InVars {ULTIMATE.start_main_~res~0#1=|v_ULTIMATE.start_main_~res~0#1_5|, ULTIMATE.start_main_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_6|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_9|} OutVars{ULTIMATE.start_main_~res~0#1=|v_ULTIMATE.start_main_~res~0#1_4|, ULTIMATE.start_main_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_6|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_8|} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_~res~0#1] 221#L17-2 [38] L17-2-->L17: Formula: (and (< 0 |v_ULTIMATE.start_main_~z~0#1_5|) (< 0 |v_ULTIMATE.start_main_~y~0#1_7|) (< 0 |v_ULTIMATE.start_main_~x~0#1_7|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_7|, ULTIMATE.start_main_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_7|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_7|, ULTIMATE.start_main_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_7|} AuxVars[] AssignedVars[] 222#L17 [45] L17-->L17-2: Formula: (and (= |v_ULTIMATE.start_main_~y~0#1_1| (+ (- 1) |v_ULTIMATE.start_main_~y~0#1_2|)) (> |v_ULTIMATE.start_main_~y~0#1_2| 0) (= |v_ULTIMATE.start_main_~x~0#1_1| (+ |v_ULTIMATE.start_main_~x~0#1_2| 1))) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_2|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_2|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_1|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1] 227#L17-2 [2023-02-13 03:39:43,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:39:43,543 INFO L85 PathProgramCache]: Analyzing trace with hash 75220, now seen corresponding path program 4 times [2023-02-13 03:39:43,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:39:43,544 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654039005] [2023-02-13 03:39:43,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:39:43,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:39:43,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:39:43,548 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:39:43,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:39:43,550 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:39:43,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:39:43,550 INFO L85 PathProgramCache]: Analyzing trace with hash 2053919, now seen corresponding path program 1 times [2023-02-13 03:39:43,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:39:43,551 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358113036] [2023-02-13 03:39:43,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:39:43,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:39:43,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:39:43,553 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:39:43,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:39:43,556 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:39:43,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:39:43,556 INFO L85 PathProgramCache]: Analyzing trace with hash 748903282, now seen corresponding path program 1 times [2023-02-13 03:39:43,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:39:43,556 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838477] [2023-02-13 03:39:43,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:39:43,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:39:43,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:39:43,560 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:39:43,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:39:43,563 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:39:43,587 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:39:43,587 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:39:43,587 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:39:43,587 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:39:43,587 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-13 03:39:43,587 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:39:43,587 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:39:43,587 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:39:43,587 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration5_Loop [2023-02-13 03:39:43,587 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:39:43,587 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:39:43,588 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:39:43,589 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:39:43,592 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:39:43,593 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:39:43,594 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:39:43,626 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:39:43,626 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-13 03:39:43,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:39:43,626 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:39:43,627 INFO L229 MonitoredProcess]: Starting monitored process 12 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:39:43,630 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-02-13 03:39:43,631 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:39:43,631 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:39:43,649 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-02-13 03:39:43,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:39:43,649 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:39:43,650 INFO L229 MonitoredProcess]: Starting monitored process 13 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:39:43,651 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-02-13 03:39:43,651 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-13 03:39:43,652 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:39:43,681 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:39:43,681 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~res~0#1=0} Honda state: {ULTIMATE.start_main_~res~0#1=0} Generalized eigenvectors: [{ULTIMATE.start_main_~res~0#1=-6}, {ULTIMATE.start_main_~res~0#1=7}, {ULTIMATE.start_main_~res~0#1=0}] Lambdas: [1, 1, 13] Nus: [0, 0] [2023-02-13 03:39:43,718 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2023-02-13 03:39:43,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:39:43,719 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:39:43,720 INFO L229 MonitoredProcess]: Starting monitored process 14 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:39:43,722 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-02-13 03:39:43,722 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:39:43,723 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:39:43,734 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:39:43,734 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~z~0#1=1, ULTIMATE.start_main_~y~0#1=0} Honda state: {ULTIMATE.start_main_~z~0#1=1, ULTIMATE.start_main_~y~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:39:43,755 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2023-02-13 03:39:43,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:39:43,756 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:39:43,757 INFO L229 MonitoredProcess]: Starting monitored process 15 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:39:43,758 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-02-13 03:39:43,759 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:39:43,759 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:39:43,773 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:39:43,773 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 03:39:43,791 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2023-02-13 03:39:43,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:39:43,791 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:39:43,792 INFO L229 MonitoredProcess]: Starting monitored process 16 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:39:43,794 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-02-13 03:39:43,794 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:39:43,795 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:39:43,813 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:39:43,813 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_5=0} Honda state: {v_rep~unnamed0~0~false_5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:39:43,842 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2023-02-13 03:39:43,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:39:43,842 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:39:43,844 INFO L229 MonitoredProcess]: Starting monitored process 17 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:39:43,845 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-02-13 03:39:43,846 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:39:43,846 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:39:43,886 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2023-02-13 03:39:43,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:39:43,887 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:39:43,888 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 03:39:43,890 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 03:39:43,891 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-13 03:39:43,891 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:39:43,914 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:39:43,914 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=1} Honda state: {ULTIMATE.start_main_~x~0#1=1} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0#1=0}, {ULTIMATE.start_main_~x~0#1=1}, {ULTIMATE.start_main_~x~0#1=0}] Lambdas: [14, 1, 0] Nus: [0, 1] [2023-02-13 03:39:43,942 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2023-02-13 03:39:43,987 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:39:43,988 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:39:43,988 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:39:43,988 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:39:43,988 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-13 03:39:43,989 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:39:43,989 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:39:43,989 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:39:43,989 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration5_Lasso [2023-02-13 03:39:43,989 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:39:43,989 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:39:43,992 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:39:44,001 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:39:44,013 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:39:44,025 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:39:44,032 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:39:44,035 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:39:44,039 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:39:44,042 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:39:44,092 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2023-02-13 03:39:44,106 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2023-02-13 03:39:44,175 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:39:44,176 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-13 03:39:44,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:39:44,176 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:39:44,178 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 03:39:44,179 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 03:39:44,180 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:39:44,181 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:39:44,227 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2023-02-13 03:39:44,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:39:44,228 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:39:44,229 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 03:39:44,232 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-13 03:39:44,232 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:39:44,234 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 03:39:44,244 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:39:44,244 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=0} Honda state: {ULTIMATE.start_main_~x~0#1=2} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0#1=0}, {ULTIMATE.start_main_~x~0#1=1}, {ULTIMATE.start_main_~x~0#1=0}] Lambdas: [8, 1, 0] Nus: [0, 0] [2023-02-13 03:39:44,283 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 03:39:44,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:39:44,284 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:39:44,285 INFO L229 MonitoredProcess]: Starting monitored process 21 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:39:44,287 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2023-02-13 03:39:44,288 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:39:44,288 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:39:44,306 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:39:44,307 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~z~0#1=0, ULTIMATE.start_main_~y~0#1=0} Honda state: {ULTIMATE.start_main_~z~0#1=1, ULTIMATE.start_main_~y~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:39:44,333 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2023-02-13 03:39:44,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:39:44,334 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:39:44,335 INFO L229 MonitoredProcess]: Starting monitored process 22 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:39:44,335 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-02-13 03:39:44,337 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:39:44,337 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:39:44,349 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:39:44,350 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0#1=0} Honda state: {ULTIMATE.start_main_#t~nondet0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:39:44,381 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2023-02-13 03:39:44,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:39:44,381 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:39:44,382 INFO L229 MonitoredProcess]: Starting monitored process 23 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:39:44,383 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2023-02-13 03:39:44,384 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:39:44,384 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:39:44,415 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2023-02-13 03:39:44,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:39:44,416 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:39:44,417 INFO L229 MonitoredProcess]: Starting monitored process 24 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:39:44,419 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-13 03:39:44,419 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:39:44,419 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2023-02-13 03:39:44,455 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:39:44,455 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~res~0#1=0} Honda state: {ULTIMATE.start_main_~res~0#1=0} Generalized eigenvectors: [{ULTIMATE.start_main_~res~0#1=-6}, {ULTIMATE.start_main_~res~0#1=7}, {ULTIMATE.start_main_~res~0#1=0}] Lambdas: [1, 1, 13] Nus: [0, 0] [2023-02-13 03:39:44,471 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2023-02-13 03:39:44,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:39:44,472 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:39:44,473 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 03:39:44,474 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 03:39:44,475 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:39:44,475 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:39:44,486 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:39:44,487 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1#1=0} Honda state: {ULTIMATE.start_main_#t~nondet1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:39:44,520 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2023-02-13 03:39:44,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:39:44,520 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:39:44,522 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 03:39:44,523 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 03:39:44,524 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:39:44,524 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:39:44,542 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:39:44,542 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_6=0} Honda state: {v_rep~unnamed0~0~false_6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:39:44,569 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 03:39:44,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:39:44,569 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:39:44,570 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 03:39:44,571 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 03:39:44,572 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:39:44,572 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:39:44,584 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:39:44,585 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res#1=0} Honda state: {ULTIMATE.start_main_#res#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:39:44,616 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 03:39:44,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:39:44,617 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:39:44,618 INFO L229 MonitoredProcess]: Starting monitored process 28 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:39:44,619 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2023-02-13 03:39:44,619 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:39:44,620 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:39:44,637 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:39:44,638 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_6=1} Honda state: {v_rep~unnamed0~0~true_6=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:39:44,665 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2023-02-13 03:39:44,672 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2023-02-13 03:39:44,673 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2023-02-13 03:39:44,673 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2023-02-13 03:39:44,673 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2023-02-13 03:39:44,673 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2023-02-13 03:39:44,674 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2023-02-13 03:39:44,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.02 03:39:44 BasicIcfg [2023-02-13 03:39:44,679 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-02-13 03:39:44,679 INFO L158 Benchmark]: Toolchain (without parser) took 2612.48ms. 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: -420.2MB). Peak memory consumption was 111.1MB. Max. memory is 42.9GB. [2023-02-13 03:39:44,679 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 2.1GB. Free memory is still 2.1GB. There was no memory consumed. Max. memory is 42.9GB. [2023-02-13 03:39:44,680 INFO L158 Benchmark]: CACSL2BoogieTranslator took 139.48ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 10.0MB). There was no memory consumed. Max. memory is 42.9GB. [2023-02-13 03:39:44,680 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.20ms. 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 03:39:44,680 INFO L158 Benchmark]: Boogie Preprocessor took 9.31ms. 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 16.8MB. Max. memory is 42.9GB. [2023-02-13 03:39:44,680 INFO L158 Benchmark]: RCFGBuilder took 164.45ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. [2023-02-13 03:39:44,680 INFO L158 Benchmark]: BlockEncodingV2 took 38.31ms. 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 03:39:44,680 INFO L158 Benchmark]: TraceAbstraction took 14.37ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. [2023-02-13 03:39:44,681 INFO L158 Benchmark]: BuchiAutomizer took 2215.55ms. 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: -451.1MB). Peak memory consumption was 77.5MB. Max. memory is 42.9GB. [2023-02-13 03:39:44,682 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 8 locations, 10 edges - StatisticsResult: Encoded RCFG 3 locations, 6 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 2.1GB. Free memory is still 2.1GB. There was no memory consumed. Max. memory is 42.9GB. * CACSL2BoogieTranslator took 139.48ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 10.0MB). There was no memory consumed. Max. memory is 42.9GB. * Boogie Procedure Inliner took 26.20ms. 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 9.31ms. 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 16.8MB. Max. memory is 42.9GB. * RCFGBuilder took 164.45ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. * BlockEncodingV2 took 38.31ms. 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 14.37ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. * BuchiAutomizer took 2215.55ms. 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: -451.1MB). Peak memory consumption was 77.5MB. Max. memory is 42.9GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (3 trivial, 0 deterministic, 2 nondeterministic) and one nonterminating remainder module.One nondeterministic module has affine ranking function -2 * y + 1 and consists of 7 locations. One nondeterministic module has affine ranking function y and consists of 5 locations. 3 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 11 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.1s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 1.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 26 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 24 mSDsluCounter, 3 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 81 IncrementalHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 3 mSDtfsCounter, 81 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT1 conc0 concLT1 SILN0 SILU0 SILI1 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital24 mio100 ax155 hnf100 lsp36 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq166 hnf91 smp100 dnf100 smp100 tf109 neg100 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 22ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 10 LassoNonterminationAnalysisSatUnbounded: 4 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - GeometricNonTerminationArgumentResult [Line: 15]: Nontermination argument in form of an infinite program execution. [2023-02-13 03:39:44,685 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2023-02-13 03:39:44,685 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2023-02-13 03:39:44,686 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2023-02-13 03:39:44,686 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2023-02-13 03:39:44,686 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2023-02-13 03:39:44,686 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2023-02-13 03:39:44,686 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2023-02-13 03:39:44,686 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2023-02-13 03:39:44,686 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2023-02-13 03:39:44,687 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2023-02-13 03:39:44,687 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2023-02-13 03:39:44,687 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false Nontermination argument in form of an infinite execution State at position 0 is {y=0, x=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3001af65=0, ~unnamed0~0~true=1, \result=0, ~unnamed0~0~false=0, res=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@546ca833=0, z=0} State at position 1 is {y=0, x=2, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3001af65=0, ~unnamed0~0~true=1, \result=0, ~unnamed0~0~false=0, res=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@546ca833=0, z=1} For i>1, the state at position i is {y=0 + sum_{k=0}^i 0, x=2 + sum_{k=0}^i 1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3001af65=0 + sum_{k=0}^i 0, ~unnamed0~0~true=1 + sum_{k=0}^i 0, \result=0 + sum_{k=0}^i 0, ~unnamed0~0~false=0 + sum_{k=0}^i 0, res=0 + sum_{k=0}^i -6 + 7, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@546ca833=0 + sum_{k=0}^i 0, z=1 + sum_{k=0}^i 0} - StatisticsResult: NonterminationArgumentStatistics Unbounded Execution 3GEVs Lambdas: [8, 1, 0, 1, 1, 13] Mus: [0, 0, 0, 0, 0] - NonterminatingLassoResult [Line: 15]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int x; [L7] int y; [L8] int z; [L9] int res; [L10] x = __VERIFIER_nondet_int() [L11] y = __VERIFIER_nondet_int() [L12] z = y [L13] res = 0 [L15] COND TRUE z > 0 && (y == 0 || y > 0 && x > 0) [L17] COND FALSE !(y == 0) [L22] x = x + 1 [L23] y = y - 1 Loop: [L15] COND TRUE z > 0 && (y == 0 || y > 0 && x > 0) [L17] COND TRUE y == 0 [L18] res = res + 1 [L19] y = z [L15] COND TRUE z > 0 && (y == 0 || y > 0 && x > 0) [L17] COND FALSE !(y == 0) [L22] x = x + 1 [L23] y = y - 1 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2023-02-13 03:39:44,725 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...