YES This is Ultimate 0.2.2-dev-e7f90c1-m [2023-02-13 03:41:15,924 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-13 03:41:15,925 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-13 03:41:15,940 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-13 03:41:15,940 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-13 03:41:15,941 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-13 03:41:15,942 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-13 03:41:15,943 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-13 03:41:15,944 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-13 03:41:15,944 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-13 03:41:15,945 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-13 03:41:15,945 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-13 03:41:15,945 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-13 03:41:15,946 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-13 03:41:15,946 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-13 03:41:15,947 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-13 03:41:15,947 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-13 03:41:15,948 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-13 03:41:15,949 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-13 03:41:15,950 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-13 03:41:15,950 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2023-02-13 03:41:15,951 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-13 03:41:15,952 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-13 03:41:15,952 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-13 03:41:15,953 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-13 03:41:15,954 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-13 03:41:15,955 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-13 03:41:15,955 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-13 03:41:15,955 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-13 03:41:15,956 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-13 03:41:15,956 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-13 03:41:15,956 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-13 03:41:15,957 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-13 03:41:15,957 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-13 03:41:15,957 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-13 03:41:15,958 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-13 03:41:15,958 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-13 03:41:15,958 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-13 03:41:15,958 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-13 03:41:15,959 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-13 03:41:15,959 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-13 03:41:15,959 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-13 03:41:15,960 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/Ultimate/./../termcomp2017.epf [2023-02-13 03:41:15,971 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-13 03:41:15,971 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-13 03:41:15,972 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-13 03:41:15,972 INFO L138 SettingsManager]: * Rewrite not-equals=true [2023-02-13 03:41:15,972 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-13 03:41:15,972 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2023-02-13 03:41:15,972 INFO L138 SettingsManager]: * Use SBE=true [2023-02-13 03:41:15,973 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-02-13 03:41:15,973 INFO L138 SettingsManager]: * Use old map elimination=false [2023-02-13 03:41:15,973 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2023-02-13 03:41:15,973 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2023-02-13 03:41:15,973 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2023-02-13 03:41:15,973 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-02-13 03:41:15,973 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2023-02-13 03:41:15,973 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:15,973 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-13 03:41:15,973 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-13 03:41:15,973 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-13 03:41:15,974 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-13 03:41:15,974 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-02-13 03:41:15,974 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2023-02-13 03:41:15,974 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-13 03:41:15,974 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-13 03:41:15,974 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2023-02-13 03:41:15,974 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2023-02-13 03:41:15,974 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-13 03:41:15,974 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-13 03:41:15,974 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-13 03:41:15,974 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/export/starexec/sandbox/solver/Ultimate/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-02-13 03:41:16,104 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-13 03:41:16,129 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-13 03:41:16,131 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-13 03:41:16,132 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-13 03:41:16,133 INFO L275 PluginConnector]: CDTParser initialized [2023-02-13 03:41:16,134 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2023-02-13 03:41:16,185 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/a70b6594388e4af1bf3ed48a99fa4674/FLAG60c792568 [2023-02-13 03:41:16,533 INFO L306 CDTParser]: Found 1 translation units. [2023-02-13 03:41:16,533 INFO L160 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2023-02-13 03:41:16,537 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/a70b6594388e4af1bf3ed48a99fa4674/FLAG60c792568 [2023-02-13 03:41:16,980 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/a70b6594388e4af1bf3ed48a99fa4674 [2023-02-13 03:41:16,984 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-13 03:41:16,985 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2023-02-13 03:41:16,988 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-13 03:41:16,988 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-13 03:41:16,992 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-13 03:41:16,992 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.02 03:41:16" (1/1) ... [2023-02-13 03:41:16,994 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46a87f26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:16, skipping insertion in model container [2023-02-13 03:41:16,994 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.02 03:41:16" (1/1) ... [2023-02-13 03:41:17,000 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-13 03:41:17,008 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-13 03:41:17,076 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-13 03:41:17,078 INFO L203 MainTranslator]: Completed pre-run [2023-02-13 03:41:17,084 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-13 03:41:17,091 INFO L208 MainTranslator]: Completed translation [2023-02-13 03:41:17,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:17 WrapperNode [2023-02-13 03:41:17,091 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-13 03:41:17,092 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-13 03:41:17,092 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-13 03:41:17,092 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-13 03:41:17,097 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:17" (1/1) ... [2023-02-13 03:41:17,099 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:17" (1/1) ... [2023-02-13 03:41:17,108 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 17 [2023-02-13 03:41:17,108 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-13 03:41:17,108 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-13 03:41:17,109 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-13 03:41:17,109 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-13 03:41:17,113 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:17" (1/1) ... [2023-02-13 03:41:17,113 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:17" (1/1) ... [2023-02-13 03:41:17,113 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:17" (1/1) ... [2023-02-13 03:41:17,114 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:17" (1/1) ... [2023-02-13 03:41:17,114 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:17" (1/1) ... [2023-02-13 03:41:17,117 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:17" (1/1) ... [2023-02-13 03:41:17,117 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:17" (1/1) ... [2023-02-13 03:41:17,117 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-13 03:41:17,118 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-13 03:41:17,118 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-13 03:41:17,118 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-13 03:41:17,119 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:17" (1/1) ... [2023-02-13 03:41:17,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2023-02-13 03:41:17,141 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:17,155 INFO L229 MonitoredProcess]: Starting monitored process 1 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) [2023-02-13 03:41:17,159 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (1)] Waiting until timeout for monitored process [2023-02-13 03:41:17,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-13 03:41:17,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-13 03:41:17,234 INFO L234 CfgBuilder]: Building ICFG [2023-02-13 03:41:17,235 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-13 03:41:17,277 INFO L275 CfgBuilder]: Performing block encoding [2023-02-13 03:41:17,283 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-13 03:41:17,283 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-13 03:41:17,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:41:17 BoogieIcfgContainer [2023-02-13 03:41:17,285 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-13 03:41:17,285 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2023-02-13 03:41:17,285 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2023-02-13 03:41:17,287 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2023-02-13 03:41:17,287 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:41:17" (1/1) ... [2023-02-13 03:41:17,299 INFO L313 BlockEncoder]: Initial Icfg 8 locations, 10 edges [2023-02-13 03:41:17,299 INFO L258 BlockEncoder]: Using Remove infeasible edges [2023-02-13 03:41:17,300 INFO L263 BlockEncoder]: Using Maximize final states [2023-02-13 03:41:17,300 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2023-02-13 03:41:17,301 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2023-02-13 03:41:17,301 INFO L296 BlockEncoder]: Using Remove sink states [2023-02-13 03:41:17,302 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2023-02-13 03:41:17,302 INFO L179 BlockEncoder]: Using Rewrite not-equals [2023-02-13 03:41:17,310 INFO L185 BlockEncoder]: Using Use SBE [2023-02-13 03:41:17,316 INFO L200 BlockEncoder]: SBE split 1 edges [2023-02-13 03:41:17,319 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2023-02-13 03:41:17,319 INFO L71 MaximizeFinalStates]: 0 new accepting states [2023-02-13 03:41:17,324 INFO L101 BaseMinimizeStates]: Removed 8 edges and 4 locations by large block encoding [2023-02-13 03:41:17,326 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2023-02-13 03:41:17,326 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2023-02-13 03:41:17,326 INFO L71 MaximizeFinalStates]: 0 new accepting states [2023-02-13 03:41:17,327 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2023-02-13 03:41:17,327 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2023-02-13 03:41:17,327 INFO L313 BlockEncoder]: Encoded RCFG 3 locations, 5 edges [2023-02-13 03:41:17,327 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 13.02 03:41:17 BasicIcfg [2023-02-13 03:41:17,327 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2023-02-13 03:41:17,328 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-13 03:41:17,328 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-13 03:41:17,330 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-13 03:41:17,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.02 03:41:16" (1/4) ... [2023-02-13 03:41:17,330 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@147d16bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.02 03:41:17, skipping insertion in model container [2023-02-13 03:41:17,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:17" (2/4) ... [2023-02-13 03:41:17,331 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@147d16bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.02 03:41:17, skipping insertion in model container [2023-02-13 03:41:17,331 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:41:17" (3/4) ... [2023-02-13 03:41:17,331 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@147d16bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.02 03:41:17, skipping insertion in model container [2023-02-13 03:41:17,331 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 13.02 03:41:17" (4/4) ... [2023-02-13 03:41:17,332 INFO L111 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2023-02-13 03:41:17,341 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2023-02-13 03:41:17,341 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 0 error locations. [2023-02-13 03:41:17,341 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@147d16bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.02 03:41:17, skipping insertion in model container [2023-02-13 03:41:17,342 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-13 03:41:17,342 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-02-13 03:41:17,342 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2023-02-13 03:41:17,344 INFO L275 PluginConnector]: BuchiAutomizer initialized [2023-02-13 03:41:17,344 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:41:17,345 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.02 03:41:16" (1/4) ... [2023-02-13 03:41:17,345 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4b2a8785 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.02 03:41:17, skipping insertion in model container [2023-02-13 03:41:17,345 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:41:17,345 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:17" (2/4) ... [2023-02-13 03:41:17,345 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4b2a8785 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.02 03:41:17, skipping insertion in model container [2023-02-13 03:41:17,345 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:41:17,345 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:41:17" (3/4) ... [2023-02-13 03:41:17,346 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4b2a8785 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.02 03:41:17, skipping insertion in model container [2023-02-13 03:41:17,346 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:41:17,346 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 13.02 03:41:17" (4/4) ... [2023-02-13 03:41:17,346 INFO L322 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2023-02-13 03:41:17,376 INFO L301 stractBuchiCegarLoop]: Interprodecural is true [2023-02-13 03:41:17,376 INFO L302 stractBuchiCegarLoop]: Hoare is true [2023-02-13 03:41:17,376 INFO L303 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-02-13 03:41:17,376 INFO L304 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-02-13 03:41:17,376 INFO L305 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-02-13 03:41:17,376 INFO L306 stractBuchiCegarLoop]: Difference is false [2023-02-13 03:41:17,376 INFO L307 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-02-13 03:41:17,376 INFO L311 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-02-13 03:41:17,379 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 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 03:41:17,388 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-13 03:41:17,389 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:41:17,389 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:41:17,392 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2023-02-13 03:41:17,392 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-13 03:41:17,392 INFO L333 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-02-13 03:41:17,392 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 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 03:41:17,392 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-13 03:41:17,393 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:41:17,393 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:41:17,393 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2023-02-13 03:41:17,393 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-13 03:41:17,396 INFO L733 eck$LassoCheckResult]: Stem: 2#ULTIMATE.startENTRYtrue [39] ULTIMATE.startENTRY-->L23-2: Formula: true InVars {} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_9|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_8|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_4|, ULTIMATE.start_main_#t~nondet1#1=|v_ULTIMATE.start_main_#t~nondet1#1_3|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_#t~nondet1#1, ULTIMATE.start_main_#t~nondet0#1] 3#L23-2true [2023-02-13 03:41:17,396 INFO L735 eck$LassoCheckResult]: Loop: 3#L23-2true [37] L23-2-->L23: Formula: (<= 0 |v_ULTIMATE.start_main_~y~0#1_7|) InVars {ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_7|} OutVars{ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_7|} AuxVars[] AssignedVars[] 4#L23true [36] L23-->L23-2: Formula: (and (> 0 |v_ULTIMATE.start_main_~x~0#1_1|) (= |v_ULTIMATE.start_main_~y~0#1_1| (+ (- 1) |v_ULTIMATE.start_main_~y~0#1_2|))) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_1|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_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_~y~0#1] 3#L23-2true [2023-02-13 03:41:17,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:17,399 INFO L85 PathProgramCache]: Analyzing trace with hash 70, now seen corresponding path program 1 times [2023-02-13 03:41:17,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:41:17,405 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145859203] [2023-02-13 03:41:17,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:41:17,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:41:17,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:17,449 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:41:17,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:17,459 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:41:17,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:17,461 INFO L85 PathProgramCache]: Analyzing trace with hash 2144, now seen corresponding path program 1 times [2023-02-13 03:41:17,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:41:17,461 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610775873] [2023-02-13 03:41:17,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:41:17,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:41:17,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:17,467 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:41:17,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:17,470 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:41:17,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:17,471 INFO L85 PathProgramCache]: Analyzing trace with hash 68453, now seen corresponding path program 1 times [2023-02-13 03:41:17,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:41:17,471 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728677140] [2023-02-13 03:41:17,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:41:17,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:41:17,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:17,474 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:41:17,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:17,477 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:41:17,509 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:41:17,509 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:41:17,509 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:41:17,509 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:41:17,510 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-13 03:41:17,510 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:17,510 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:41:17,510 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:41:17,510 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2023-02-13 03:41:17,510 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:41:17,510 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:41:17,518 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:41:17,525 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:41:17,527 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:41:17,529 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:41:17,558 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:41:17,559 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-13 03:41:17,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:17,560 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:17,568 INFO L229 MonitoredProcess]: Starting monitored process 2 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:41:17,571 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:41:17,571 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:41:17,580 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-02-13 03:41:17,586 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:41:17,587 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:41:17,602 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-02-13 03:41:17,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:17,603 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:17,604 INFO L229 MonitoredProcess]: Starting monitored process 3 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:41:17,608 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-02-13 03:41:17,609 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:41:17,609 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:41:17,622 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:41:17,622 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:41:17,637 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-02-13 03:41:17,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:17,637 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:17,638 INFO L229 MonitoredProcess]: Starting monitored process 4 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:41:17,639 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-02-13 03:41:17,640 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:41:17,640 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:41:17,648 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:41:17,648 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: [] Lambdas: [] Nus: [] [2023-02-13 03:41:17,685 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2023-02-13 03:41:17,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:17,686 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:17,688 INFO L229 MonitoredProcess]: Starting monitored process 5 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:41:17,689 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-02-13 03:41:17,689 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:41:17,689 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:41:17,740 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2023-02-13 03:41:17,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:17,741 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:17,742 INFO L229 MonitoredProcess]: Starting monitored process 6 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:41:17,743 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-02-13 03:41:17,744 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-13 03:41:17,745 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:41:17,797 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-13 03:41:17,799 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2023-02-13 03:41:17,799 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:41:17,800 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:41:17,800 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:41:17,800 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:41:17,800 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-13 03:41:17,800 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:17,800 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:41:17,800 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:41:17,800 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2023-02-13 03:41:17,800 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:41:17,800 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:41:17,801 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:41:17,806 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:41:17,810 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:41:17,812 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:41:17,850 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:41:17,852 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-13 03:41:17,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:17,853 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:17,854 INFO L229 MonitoredProcess]: Starting monitored process 7 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:41:17,855 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-02-13 03:41:17,855 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:41:17,861 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:41:17,862 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:41:17,862 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:41:17,862 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:41:17,868 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:41:17,869 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:41:17,876 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:41:17,894 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2023-02-13 03:41:17,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:17,895 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:17,896 INFO L229 MonitoredProcess]: Starting monitored process 8 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:41:17,913 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-02-13 03:41:17,915 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:41:17,919 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:41:17,920 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:41:17,920 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:41:17,920 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:41:17,920 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:41:17,921 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:41:17,921 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:41:17,923 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:41:17,947 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2023-02-13 03:41:17,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:17,947 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:17,948 INFO L229 MonitoredProcess]: Starting monitored process 9 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:41:17,949 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-02-13 03:41:17,950 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:41:17,956 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:41:17,957 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:41:17,957 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:41:17,957 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:41:17,960 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:41:17,961 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:41:17,964 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:41:17,980 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2023-02-13 03:41:17,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:17,981 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:17,982 INFO L229 MonitoredProcess]: Starting monitored process 10 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:41:17,984 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-02-13 03:41:17,984 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:41:17,988 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:41:17,989 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:41:17,989 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:41:17,989 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:41:17,989 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:41:17,991 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:41:17,992 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:41:17,995 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-13 03:41:17,998 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-13 03:41:17,998 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-13 03:41:18,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:18,002 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:18,004 INFO L229 MonitoredProcess]: Starting monitored process 11 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:41:18,006 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-02-13 03:41:18,007 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-13 03:41:18,007 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-13 03:41:18,007 INFO L513 LassoAnalysis]: Proved termination. [2023-02-13 03:41:18,008 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 03:41:18,029 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 03:41:18,037 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-13 03:41:18,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:18,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:41:18,079 WARN L261 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-13 03:41:18,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:41:18,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:41:18,091 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-13 03:41:18,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:41:18,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 03:41:18,135 INFO L100 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2023-02-13 03:41:18,139 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 03:41:18,141 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 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) 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 03:41:18,165 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 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). Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 13 states and 27 transitions. Complement of second has 6 states. [2023-02-13 03:41:18,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-02-13 03:41:18,171 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 03:41:18,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2023-02-13 03:41:18,173 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 1 letters. Loop has 2 letters. [2023-02-13 03:41:18,174 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:41:18,174 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 3 letters. Loop has 2 letters. [2023-02-13 03:41:18,174 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:41:18,174 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 1 letters. Loop has 4 letters. [2023-02-13 03:41:18,174 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:41:18,179 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 27 transitions. [2023-02-13 03:41:18,180 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2023-02-13 03:41:18,183 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 13 states and 27 transitions. [2023-02-13 03:41:18,184 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2023-02-13 03:41:18,184 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2023-02-13 03:41:18,184 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 27 transitions. [2023-02-13 03:41:18,185 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-13 03:41:18,185 INFO L220 hiAutomatonCegarLoop]: Abstraction has 13 states and 27 transitions. [2023-02-13 03:41:18,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 27 transitions. [2023-02-13 03:41:18,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 11. [2023-02-13 03:41:18,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:41:18,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 24 transitions. [2023-02-13 03:41:18,201 INFO L242 hiAutomatonCegarLoop]: Abstraction has 11 states and 24 transitions. [2023-02-13 03:41:18,201 INFO L426 stractBuchiCegarLoop]: Abstraction has 11 states and 24 transitions. [2023-02-13 03:41:18,201 INFO L333 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-02-13 03:41:18,201 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 24 transitions. [2023-02-13 03:41:18,201 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2023-02-13 03:41:18,201 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:41:18,201 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:41:18,201 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-13 03:41:18,201 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-13 03:41:18,202 INFO L733 eck$LassoCheckResult]: Stem: 51#ULTIMATE.startENTRY [39] ULTIMATE.startENTRY-->L23-2: Formula: true InVars {} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_9|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_8|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_4|, ULTIMATE.start_main_#t~nondet1#1=|v_ULTIMATE.start_main_#t~nondet1#1_3|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_#t~nondet1#1, ULTIMATE.start_main_#t~nondet0#1] 52#L23-2 [37] L23-2-->L23: Formula: (<= 0 |v_ULTIMATE.start_main_~y~0#1_7|) InVars {ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_7|} OutVars{ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_7|} AuxVars[] AssignedVars[] 54#L23 [2023-02-13 03:41:18,202 INFO L735 eck$LassoCheckResult]: Loop: 54#L23 [29] L23-->L23-2: Formula: (and (= (+ (- 1) |v_ULTIMATE.start_main_~x~0#1_8|) |v_ULTIMATE.start_main_~x~0#1_7|) (<= 0 |v_ULTIMATE.start_main_~x~0#1_8|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_8|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_7|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1] 53#L23-2 [37] L23-2-->L23: Formula: (<= 0 |v_ULTIMATE.start_main_~y~0#1_7|) InVars {ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_7|} OutVars{ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_7|} AuxVars[] AssignedVars[] 54#L23 [2023-02-13 03:41:18,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:18,202 INFO L85 PathProgramCache]: Analyzing trace with hash 2207, now seen corresponding path program 1 times [2023-02-13 03:41:18,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:41:18,202 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750701378] [2023-02-13 03:41:18,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:41:18,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:41:18,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:18,205 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:41:18,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:18,206 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:41:18,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:18,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1897, now seen corresponding path program 1 times [2023-02-13 03:41:18,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:41:18,207 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574267673] [2023-02-13 03:41:18,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:41:18,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:41:18,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:18,210 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:41:18,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:18,211 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:41:18,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:18,212 INFO L85 PathProgramCache]: Analyzing trace with hash 2121863, now seen corresponding path program 1 times [2023-02-13 03:41:18,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:41:18,212 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433894281] [2023-02-13 03:41:18,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:41:18,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:41:18,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:18,215 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:41:18,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:18,216 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:41:18,228 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:41:18,228 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:41:18,228 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:41:18,228 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:41:18,228 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-13 03:41:18,228 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:18,228 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:41:18,228 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:41:18,228 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2023-02-13 03:41:18,228 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:41:18,228 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:41:18,229 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:41:18,230 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:41:18,232 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:41:18,235 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:41:18,257 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:41:18,257 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-13 03:41:18,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:18,257 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:18,258 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 03:41:18,259 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 03:41:18,259 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:41:18,259 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:41:18,267 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:41:18,267 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:41:18,282 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2023-02-13 03:41:18,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:18,282 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:18,283 INFO L229 MonitoredProcess]: Starting monitored process 13 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:41:18,284 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-02-13 03:41:18,284 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:41:18,284 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:41:18,292 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:41:18,292 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0#1=0} Honda state: {ULTIMATE.start_main_~y~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:41:18,308 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2023-02-13 03:41:18,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:18,309 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:18,310 INFO L229 MonitoredProcess]: Starting monitored process 14 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:41:18,311 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-02-13 03:41:18,312 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:41:18,312 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:41:18,326 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:41:18,326 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:41:18,355 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2023-02-13 03:41:18,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:18,355 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:18,356 INFO L229 MonitoredProcess]: Starting monitored process 15 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:41:18,358 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-02-13 03:41:18,358 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:41:18,358 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:41:18,398 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2023-02-13 03:41:18,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:18,399 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:18,400 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 03:41:18,401 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 03:41:18,402 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-13 03:41:18,402 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:41:18,455 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-13 03:41:18,459 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 03:41:18,460 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:41:18,460 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:41:18,460 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:41:18,460 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:41:18,461 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-13 03:41:18,461 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:18,461 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:41:18,461 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:41:18,462 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2023-02-13 03:41:18,462 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:41:18,462 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:41:18,464 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:41:18,468 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:41:18,471 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:41:18,473 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:41:18,497 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:41:18,497 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-13 03:41:18,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:18,497 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:18,498 INFO L229 MonitoredProcess]: Starting monitored process 17 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:41:18,499 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-02-13 03:41:18,500 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:41:18,505 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:41:18,505 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:41:18,505 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:41:18,505 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:41:18,507 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:41:18,507 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:41:18,510 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:41:18,529 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2023-02-13 03:41:18,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:18,530 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:18,531 INFO L229 MonitoredProcess]: Starting monitored process 18 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:41:18,532 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-02-13 03:41:18,533 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:41:18,537 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:41:18,537 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:41:18,538 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:41:18,538 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:41:18,538 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:41:18,539 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:41:18,539 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:41:18,540 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:41:18,577 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2023-02-13 03:41:18,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:18,578 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:18,578 INFO L229 MonitoredProcess]: Starting monitored process 19 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:41:18,579 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-02-13 03:41:18,581 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:41:18,589 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:41:18,589 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:41:18,590 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:41:18,590 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:41:18,593 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:41:18,593 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:41:18,599 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:41:18,629 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2023-02-13 03:41:18,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:18,630 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:18,631 INFO L229 MonitoredProcess]: Starting monitored process 20 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:41:18,633 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-02-13 03:41:18,634 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:41:18,644 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:41:18,644 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:41:18,644 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:41:18,645 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:41:18,645 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:41:18,647 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:41:18,647 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:41:18,651 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-13 03:41:18,654 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-13 03:41:18,654 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-13 03:41:18,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:18,654 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:18,656 INFO L229 MonitoredProcess]: Starting monitored process 21 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:41:18,659 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2023-02-13 03:41:18,660 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-13 03:41:18,660 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-13 03:41:18,661 INFO L513 LassoAnalysis]: Proved termination. [2023-02-13 03:41:18,661 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 2*ULTIMATE.start_main_~x~0#1 + 1 Supporting invariants [] [2023-02-13 03:41:18,698 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2023-02-13 03:41:18,701 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-13 03:41:18,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:18,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:41:18,727 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-13 03:41:18,727 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:41:18,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:41:18,735 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-13 03:41:18,736 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:41:18,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 03:41:18,792 INFO L100 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2023-02-13 03:41:18,792 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 03:41:18,792 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 11 states and 24 transitions. cyclomatic complexity: 16 Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:41:18,836 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 11 states and 24 transitions. cyclomatic complexity: 16. Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 33 states and 64 transitions. Complement of second has 9 states. [2023-02-13 03:41:18,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-02-13 03:41:18,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:41:18,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2023-02-13 03:41:18,838 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 2 letters. Loop has 2 letters. [2023-02-13 03:41:18,838 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:41:18,838 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 4 letters. Loop has 2 letters. [2023-02-13 03:41:18,838 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:41:18,838 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 2 letters. Loop has 4 letters. [2023-02-13 03:41:18,838 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:41:18,839 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 64 transitions. [2023-02-13 03:41:18,840 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-13 03:41:18,841 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 4 states and 5 transitions. [2023-02-13 03:41:18,841 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2023-02-13 03:41:18,841 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2023-02-13 03:41:18,841 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 5 transitions. [2023-02-13 03:41:18,841 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-13 03:41:18,841 INFO L220 hiAutomatonCegarLoop]: Abstraction has 4 states and 5 transitions. [2023-02-13 03:41:18,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4 states and 5 transitions. [2023-02-13 03:41:18,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4 to 3. [2023-02-13 03:41:18,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:41:18,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4 transitions. [2023-02-13 03:41:18,842 INFO L242 hiAutomatonCegarLoop]: Abstraction has 3 states and 4 transitions. [2023-02-13 03:41:18,842 INFO L426 stractBuchiCegarLoop]: Abstraction has 3 states and 4 transitions. [2023-02-13 03:41:18,842 INFO L333 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-02-13 03:41:18,842 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states and 4 transitions. [2023-02-13 03:41:18,842 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-13 03:41:18,842 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:41:18,843 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:41:18,843 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2023-02-13 03:41:18,843 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-13 03:41:18,843 INFO L733 eck$LassoCheckResult]: Stem: 135#ULTIMATE.startENTRY [39] ULTIMATE.startENTRY-->L23-2: Formula: true InVars {} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_9|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_8|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_4|, ULTIMATE.start_main_#t~nondet1#1=|v_ULTIMATE.start_main_#t~nondet1#1_3|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_#t~nondet1#1, ULTIMATE.start_main_#t~nondet0#1] 136#L23-2 [2023-02-13 03:41:18,843 INFO L735 eck$LassoCheckResult]: Loop: 136#L23-2 [38] L23-2-->L23: Formula: (<= 0 |v_ULTIMATE.start_main_~x~0#1_6|) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_6|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_6|} AuxVars[] AssignedVars[] 137#L23 [36] L23-->L23-2: Formula: (and (> 0 |v_ULTIMATE.start_main_~x~0#1_1|) (= |v_ULTIMATE.start_main_~y~0#1_1| (+ (- 1) |v_ULTIMATE.start_main_~y~0#1_2|))) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_1|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_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_~y~0#1] 136#L23-2 [2023-02-13 03:41:18,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:18,844 INFO L85 PathProgramCache]: Analyzing trace with hash 70, now seen corresponding path program 2 times [2023-02-13 03:41:18,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:41:18,844 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629173495] [2023-02-13 03:41:18,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:41:18,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:41:18,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:18,846 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:41:18,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:18,848 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:41:18,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:18,848 INFO L85 PathProgramCache]: Analyzing trace with hash 2175, now seen corresponding path program 1 times [2023-02-13 03:41:18,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:41:18,848 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266950097] [2023-02-13 03:41:18,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:41:18,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:41:18,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:41:18,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 03:41:18,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-13 03:41:18,866 INFO L335 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266950097] [2023-02-13 03:41:18,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266950097] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-13 03:41:18,866 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-13 03:41:18,866 ERROR L191 FreeRefinementEngine]: {141#true} [143#(not (<= (+ |ULTIMATE.start_main_~x~0#1| 1) 0))] {142#false} [2023-02-13 03:41:18,867 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-02-13 03:41:18,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111295052] [2023-02-13 03:41:18,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-13 03:41:18,868 INFO L750 eck$LassoCheckResult]: loop already infeasible [2023-02-13 03:41:18,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-13 03:41:18,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-13 03:41:18,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-13 03:41:18,871 INFO L87 Difference]: Start difference. First operand 3 states and 4 transitions. cyclomatic complexity: 2 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 03:41:18,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-13 03:41:18,876 INFO L93 Difference]: Finished difference Result 3 states and 3 transitions. [2023-02-13 03:41:18,876 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 3 states and 3 transitions. [2023-02-13 03:41:18,876 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-13 03:41:18,876 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 3 states to 3 states and 3 transitions. [2023-02-13 03:41:18,876 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2023-02-13 03:41:18,876 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3 [2023-02-13 03:41:18,877 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3 transitions. [2023-02-13 03:41:18,877 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-13 03:41:18,877 INFO L220 hiAutomatonCegarLoop]: Abstraction has 3 states and 3 transitions. [2023-02-13 03:41:18,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3 states and 3 transitions. [2023-02-13 03:41:18,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3 to 3. [2023-02-13 03:41:18,877 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 03:41:18,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3 transitions. [2023-02-13 03:41:18,877 INFO L242 hiAutomatonCegarLoop]: Abstraction has 3 states and 3 transitions. [2023-02-13 03:41:18,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-13 03:41:18,880 INFO L426 stractBuchiCegarLoop]: Abstraction has 3 states and 3 transitions. [2023-02-13 03:41:18,881 INFO L333 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-02-13 03:41:18,881 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states and 3 transitions. [2023-02-13 03:41:18,881 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-13 03:41:18,882 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:41:18,882 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:41:18,882 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2023-02-13 03:41:18,883 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-13 03:41:18,883 INFO L733 eck$LassoCheckResult]: Stem: 147#ULTIMATE.startENTRY [39] ULTIMATE.startENTRY-->L23-2: Formula: true InVars {} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_9|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_8|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_4|, ULTIMATE.start_main_#t~nondet1#1=|v_ULTIMATE.start_main_#t~nondet1#1_3|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_#t~nondet1#1, ULTIMATE.start_main_#t~nondet0#1] 148#L23-2 [2023-02-13 03:41:18,883 INFO L735 eck$LassoCheckResult]: Loop: 148#L23-2 [38] L23-2-->L23: Formula: (<= 0 |v_ULTIMATE.start_main_~x~0#1_6|) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_6|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_6|} AuxVars[] AssignedVars[] 149#L23 [29] L23-->L23-2: Formula: (and (= (+ (- 1) |v_ULTIMATE.start_main_~x~0#1_8|) |v_ULTIMATE.start_main_~x~0#1_7|) (<= 0 |v_ULTIMATE.start_main_~x~0#1_8|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_8|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_7|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1] 148#L23-2 [2023-02-13 03:41:18,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:18,884 INFO L85 PathProgramCache]: Analyzing trace with hash 70, now seen corresponding path program 3 times [2023-02-13 03:41:18,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:41:18,885 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593554243] [2023-02-13 03:41:18,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:41:18,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:41:18,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:18,891 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:41:18,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:18,894 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:41:18,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:18,895 INFO L85 PathProgramCache]: Analyzing trace with hash 2168, now seen corresponding path program 1 times [2023-02-13 03:41:18,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:41:18,896 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556505546] [2023-02-13 03:41:18,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:41:18,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:41:18,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:18,901 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:41:18,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:18,904 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:41:18,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:18,904 INFO L85 PathProgramCache]: Analyzing trace with hash 68477, now seen corresponding path program 1 times [2023-02-13 03:41:18,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:41:18,905 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243167121] [2023-02-13 03:41:18,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:41:18,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:41:18,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:18,908 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:41:18,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:18,911 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:41:18,919 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:41:18,919 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:41:18,919 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:41:18,919 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:41:18,919 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-13 03:41:18,919 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:18,920 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:41:18,920 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:41:18,920 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2023-02-13 03:41:18,920 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:41:18,920 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:41:18,921 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:41:18,923 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:41:18,927 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:41:18,957 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:41:18,957 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-13 03:41:18,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:18,958 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:18,960 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 03:41:18,962 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 03:41:18,963 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:41:18,964 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:41:18,982 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:41:18,982 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 03:41:19,018 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 03:41:19,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:19,019 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:19,020 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 03:41:19,021 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 03:41:19,022 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:41:19,022 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:41:19,063 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 03:41:19,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:19,065 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:19,066 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 03:41:19,068 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 03:41:19,068 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-13 03:41:19,068 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:41:19,111 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-13 03:41:19,113 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 03:41:19,113 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:41:19,113 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:41:19,114 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:41:19,114 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:41:19,114 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-13 03:41:19,114 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:19,115 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:41:19,115 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:41:19,115 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2023-02-13 03:41:19,115 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:41:19,116 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:41:19,117 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:41:19,122 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:41:19,127 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:41:19,159 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:41:19,159 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-13 03:41:19,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:19,160 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:19,162 INFO L229 MonitoredProcess]: Starting monitored process 25 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:41:19,163 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2023-02-13 03:41:19,164 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:41:19,173 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:41:19,173 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:41:19,174 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:41:19,174 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:41:19,178 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:41:19,179 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:41:19,185 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:41:19,221 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2023-02-13 03:41:19,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:19,222 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:19,223 INFO L229 MonitoredProcess]: Starting monitored process 26 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:41:19,224 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2023-02-13 03:41:19,225 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:41:19,231 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:41:19,231 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:41:19,232 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:41:19,232 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:41:19,232 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:41:19,233 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:41:19,233 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:41:19,236 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-13 03:41:19,239 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-13 03:41:19,239 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-13 03:41:19,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:19,239 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:19,240 INFO L229 MonitoredProcess]: Starting monitored process 27 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:41:19,242 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2023-02-13 03:41:19,242 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-13 03:41:19,243 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-13 03:41:19,243 INFO L513 LassoAnalysis]: Proved termination. [2023-02-13 03:41:19,243 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 2*ULTIMATE.start_main_~x~0#1 + 1 Supporting invariants [] [2023-02-13 03:41:19,268 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2023-02-13 03:41:19,270 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-13 03:41:19,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:19,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:41:19,288 WARN L261 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-13 03:41:19,288 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:41:19,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:41:19,292 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-13 03:41:19,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:41:19,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 03:41:19,318 INFO L100 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2023-02-13 03:41:19,318 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 03:41:19,319 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 3 states and 3 transitions. cyclomatic complexity: 1 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 03:41:19,329 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 3 states and 3 transitions. cyclomatic complexity: 1. 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 5 states and 6 transitions. Complement of second has 4 states. [2023-02-13 03:41:19,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-02-13 03:41:19,330 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 03:41:19,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2023-02-13 03:41:19,331 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 1 letters. Loop has 2 letters. [2023-02-13 03:41:19,331 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:41:19,331 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 2 letters. [2023-02-13 03:41:19,331 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:41:19,331 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 1 letters. Loop has 4 letters. [2023-02-13 03:41:19,332 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:41:19,332 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 5 states and 6 transitions. [2023-02-13 03:41:19,333 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-13 03:41:19,333 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 5 states to 0 states and 0 transitions. [2023-02-13 03:41:19,333 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-02-13 03:41:19,333 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-02-13 03:41:19,334 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-02-13 03:41:19,334 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-13 03:41:19,334 INFO L220 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-13 03:41:19,334 INFO L242 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-13 03:41:19,334 INFO L426 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-13 03:41:19,334 INFO L333 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-02-13 03:41:19,334 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-02-13 03:41:19,335 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-13 03:41:19,335 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-02-13 03:41:19,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.02 03:41:19 BasicIcfg [2023-02-13 03:41:19,343 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-02-13 03:41:19,344 INFO L158 Benchmark]: Toolchain (without parser) took 2358.77ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.0GB in the end (delta: 92.1MB). Peak memory consumption was 91.2MB. Max. memory is 42.9GB. [2023-02-13 03:41:19,344 INFO L158 Benchmark]: CDTParser took 0.15ms. 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 03:41:19,344 INFO L158 Benchmark]: CACSL2BoogieTranslator took 103.58ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. [2023-02-13 03:41:19,345 INFO L158 Benchmark]: Boogie Procedure Inliner took 16.22ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. [2023-02-13 03:41:19,345 INFO L158 Benchmark]: Boogie Preprocessor took 9.13ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 892.2kB). There was no memory consumed. Max. memory is 42.9GB. [2023-02-13 03:41:19,345 INFO L158 Benchmark]: RCFGBuilder took 166.76ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. [2023-02-13 03:41:19,346 INFO L158 Benchmark]: BlockEncodingV2 took 42.05ms. 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 03:41:19,346 INFO L158 Benchmark]: TraceAbstraction took 13.52ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 42.9GB. [2023-02-13 03:41:19,346 INFO L158 Benchmark]: BuchiAutomizer took 2001.37ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.0GB in the end (delta: 60.3MB). Peak memory consumption was 57.7MB. Max. memory is 42.9GB. [2023-02-13 03:41:19,348 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, 5 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 2.1GB. Free memory is still 2.1GB. There was no memory consumed. Max. memory is 42.9GB. * CACSL2BoogieTranslator took 103.58ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. * Boogie Procedure Inliner took 16.22ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. * Boogie Preprocessor took 9.13ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 892.2kB). There was no memory consumed. Max. memory is 42.9GB. * RCFGBuilder took 166.76ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. * BlockEncodingV2 took 42.05ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 4.6MB). There was no memory consumed. Max. memory is 42.9GB. * TraceAbstraction took 13.52ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 42.9GB. * BuchiAutomizer took 2001.37ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.0GB in the end (delta: 60.3MB). Peak memory consumption was 57.7MB. Max. memory is 42.9GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (1 trivial, 0 deterministic, 3 nondeterministic). One nondeterministic module has affine ranking function 2 * y + 1 and consists of 4 locations. One nondeterministic module has affine ranking function 2 * x + 1 and consists of 4 locations. One nondeterministic module has affine ranking function 2 * x + 1 and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.9s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 1.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 3 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 [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 26 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 23 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 47 IncrementalHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 4 mSDtfsCounter, 47 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT3 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital12 mio100 ax201 hnf100 lsp41 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 22ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 7 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-02-13 03:41:19,392 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2023-02-13 03:41:19,589 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2023-02-13 03:41:19,792 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-02-13 03:41:19,992 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...