YES This is Ultimate 0.2.2-dev-e7f90c1-m [2023-02-13 03:40:00,856 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-13 03:40:00,857 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-13 03:40:00,872 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-13 03:40:00,873 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-13 03:40:00,873 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-13 03:40:00,874 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-13 03:40:00,875 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-13 03:40:00,876 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-13 03:40:00,876 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-13 03:40:00,877 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-13 03:40:00,877 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-13 03:40:00,877 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-13 03:40:00,878 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-13 03:40:00,878 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-13 03:40:00,879 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-13 03:40:00,879 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-13 03:40:00,880 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-13 03:40:00,881 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-13 03:40:00,881 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-13 03:40:00,882 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2023-02-13 03:40:00,883 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-13 03:40:00,883 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-13 03:40:00,884 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-13 03:40:00,884 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-13 03:40:00,886 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-13 03:40:00,886 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-13 03:40:00,886 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-13 03:40:00,886 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-13 03:40:00,886 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-13 03:40:00,887 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-13 03:40:00,887 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-13 03:40:00,887 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-13 03:40:00,888 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-13 03:40:00,888 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-13 03:40:00,889 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-13 03:40:00,889 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-13 03:40:00,889 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-13 03:40:00,889 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-13 03:40:00,889 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-13 03:40:00,890 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-13 03:40:00,890 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-13 03:40:00,890 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/Ultimate/./../termcomp2017.epf [2023-02-13 03:40:00,901 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-13 03:40:00,902 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-13 03:40:00,902 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-13 03:40:00,902 INFO L138 SettingsManager]: * Rewrite not-equals=true [2023-02-13 03:40:00,902 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-13 03:40:00,903 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2023-02-13 03:40:00,903 INFO L138 SettingsManager]: * Use SBE=true [2023-02-13 03:40:00,903 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-02-13 03:40:00,903 INFO L138 SettingsManager]: * Use old map elimination=false [2023-02-13 03:40:00,903 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2023-02-13 03:40:00,903 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2023-02-13 03:40:00,903 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2023-02-13 03:40:00,903 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-02-13 03:40:00,903 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2023-02-13 03:40:00,903 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:00,903 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-13 03:40:00,904 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-13 03:40:00,904 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-13 03:40:00,904 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-13 03:40:00,904 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-02-13 03:40:00,904 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2023-02-13 03:40:00,904 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-13 03:40:00,904 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-13 03:40:00,904 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2023-02-13 03:40:00,904 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2023-02-13 03:40:00,904 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-13 03:40:00,904 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-13 03:40:00,905 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-13 03:40:00,905 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/export/starexec/sandbox/solver/Ultimate/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-02-13 03:40:01,038 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-13 03:40:01,054 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-13 03:40:01,055 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-13 03:40:01,056 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-13 03:40:01,056 INFO L275 PluginConnector]: CDTParser initialized [2023-02-13 03:40:01,057 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2023-02-13 03:40:01,107 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/ed9198b7ce8e4641a12ff99e010196c0/FLAG21bc974a0 [2023-02-13 03:40:01,453 INFO L306 CDTParser]: Found 1 translation units. [2023-02-13 03:40:01,453 INFO L160 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2023-02-13 03:40:01,456 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/ed9198b7ce8e4641a12ff99e010196c0/FLAG21bc974a0 [2023-02-13 03:40:01,903 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/ed9198b7ce8e4641a12ff99e010196c0 [2023-02-13 03:40:01,907 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-13 03:40:01,908 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2023-02-13 03:40:01,910 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-13 03:40:01,910 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-13 03:40:01,916 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-13 03:40:01,918 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.02 03:40:01" (1/1) ... [2023-02-13 03:40:01,920 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@741a9ee5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:01, skipping insertion in model container [2023-02-13 03:40:01,920 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.02 03:40:01" (1/1) ... [2023-02-13 03:40:01,930 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-13 03:40:01,942 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-13 03:40:02,044 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-13 03:40:02,046 INFO L203 MainTranslator]: Completed pre-run [2023-02-13 03:40:02,054 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-13 03:40:02,060 INFO L208 MainTranslator]: Completed translation [2023-02-13 03:40:02,060 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:02 WrapperNode [2023-02-13 03:40:02,060 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-13 03:40:02,061 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-13 03:40:02,061 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-13 03:40:02,061 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-13 03:40:02,071 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:02" (1/1) ... [2023-02-13 03:40:02,078 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:02" (1/1) ... [2023-02-13 03:40:02,096 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 34 [2023-02-13 03:40:02,097 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-13 03:40:02,097 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-13 03:40:02,097 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-13 03:40:02,098 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-13 03:40:02,103 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:02" (1/1) ... [2023-02-13 03:40:02,104 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:02" (1/1) ... [2023-02-13 03:40:02,104 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:02" (1/1) ... [2023-02-13 03:40:02,104 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:02" (1/1) ... [2023-02-13 03:40:02,105 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:02" (1/1) ... [2023-02-13 03:40:02,108 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:02" (1/1) ... [2023-02-13 03:40:02,108 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:02" (1/1) ... [2023-02-13 03:40:02,109 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-13 03:40:02,109 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-13 03:40:02,109 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-13 03:40:02,109 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-13 03:40:02,110 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:02" (1/1) ... [2023-02-13 03:40:02,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2023-02-13 03:40:02,137 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:02,149 INFO L229 MonitoredProcess]: Starting monitored process 1 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:02,153 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (1)] Waiting until timeout for monitored process [2023-02-13 03:40:02,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-13 03:40:02,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-13 03:40:02,265 INFO L234 CfgBuilder]: Building ICFG [2023-02-13 03:40:02,266 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-13 03:40:02,339 INFO L275 CfgBuilder]: Performing block encoding [2023-02-13 03:40:02,349 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-13 03:40:02,349 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2023-02-13 03:40:02,351 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:40:02 BoogieIcfgContainer [2023-02-13 03:40:02,352 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-13 03:40:02,352 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2023-02-13 03:40:02,352 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2023-02-13 03:40:02,354 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2023-02-13 03:40:02,355 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:40:02" (1/1) ... [2023-02-13 03:40:02,367 INFO L313 BlockEncoder]: Initial Icfg 11 locations, 16 edges [2023-02-13 03:40:02,368 INFO L258 BlockEncoder]: Using Remove infeasible edges [2023-02-13 03:40:02,368 INFO L263 BlockEncoder]: Using Maximize final states [2023-02-13 03:40:02,368 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2023-02-13 03:40:02,368 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2023-02-13 03:40:02,369 INFO L296 BlockEncoder]: Using Remove sink states [2023-02-13 03:40:02,369 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2023-02-13 03:40:02,370 INFO L179 BlockEncoder]: Using Rewrite not-equals [2023-02-13 03:40:02,386 INFO L185 BlockEncoder]: Using Use SBE [2023-02-13 03:40:02,396 INFO L200 BlockEncoder]: SBE split 4 edges [2023-02-13 03:40:02,399 INFO L70 emoveInfeasibleEdges]: Removed 3 edges and 0 locations because of local infeasibility [2023-02-13 03:40:02,400 INFO L71 MaximizeFinalStates]: 0 new accepting states [2023-02-13 03:40:02,404 INFO L101 BaseMinimizeStates]: Removed 8 edges and 4 locations by large block encoding [2023-02-13 03:40:02,405 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2023-02-13 03:40:02,406 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2023-02-13 03:40:02,406 INFO L71 MaximizeFinalStates]: 0 new accepting states [2023-02-13 03:40:02,406 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2023-02-13 03:40:02,406 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2023-02-13 03:40:02,406 INFO L313 BlockEncoder]: Encoded RCFG 6 locations, 12 edges [2023-02-13 03:40:02,407 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 13.02 03:40:02 BasicIcfg [2023-02-13 03:40:02,407 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2023-02-13 03:40:02,408 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-13 03:40:02,408 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-13 03:40:02,410 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-13 03:40:02,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.02 03:40:01" (1/4) ... [2023-02-13 03:40:02,410 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fb60a49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.02 03:40:02, skipping insertion in model container [2023-02-13 03:40:02,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:02" (2/4) ... [2023-02-13 03:40:02,411 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fb60a49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.02 03:40:02, skipping insertion in model container [2023-02-13 03:40:02,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:40:02" (3/4) ... [2023-02-13 03:40:02,411 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fb60a49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.02 03:40:02, skipping insertion in model container [2023-02-13 03:40:02,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 13.02 03:40:02" (4/4) ... [2023-02-13 03:40:02,411 INFO L111 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2023-02-13 03:40:02,420 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2023-02-13 03:40:02,421 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 0 error locations. [2023-02-13 03:40:02,421 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fb60a49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.02 03:40:02, skipping insertion in model container [2023-02-13 03:40:02,421 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-13 03:40:02,422 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-02-13 03:40:02,422 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2023-02-13 03:40:02,423 INFO L275 PluginConnector]: BuchiAutomizer initialized [2023-02-13 03:40:02,424 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:40:02,424 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.02 03:40:01" (1/4) ... [2023-02-13 03:40:02,424 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2404dd97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.02 03:40:02, skipping insertion in model container [2023-02-13 03:40:02,424 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:40:02,424 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:02" (2/4) ... [2023-02-13 03:40:02,425 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2404dd97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.02 03:40:02, skipping insertion in model container [2023-02-13 03:40:02,425 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:40:02,425 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:40:02" (3/4) ... [2023-02-13 03:40:02,425 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2404dd97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.02 03:40:02, skipping insertion in model container [2023-02-13 03:40:02,425 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:40:02,425 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 13.02 03:40:02" (4/4) ... [2023-02-13 03:40:02,426 INFO L322 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2023-02-13 03:40:02,454 INFO L301 stractBuchiCegarLoop]: Interprodecural is true [2023-02-13 03:40:02,454 INFO L302 stractBuchiCegarLoop]: Hoare is true [2023-02-13 03:40:02,454 INFO L303 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-02-13 03:40:02,454 INFO L304 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-02-13 03:40:02,454 INFO L305 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-02-13 03:40:02,454 INFO L306 stractBuchiCegarLoop]: Difference is false [2023-02-13 03:40:02,454 INFO L307 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-02-13 03:40:02,454 INFO L311 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-02-13 03:40:02,457 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:02,467 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-02-13 03:40:02,467 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:40:02,467 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:40:02,470 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2023-02-13 03:40:02,470 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-02-13 03:40:02,470 INFO L333 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-02-13 03:40:02,470 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:02,471 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-02-13 03:40:02,471 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:40:02,471 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:40:02,471 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2023-02-13 03:40:02,471 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-02-13 03:40:02,474 INFO L733 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [74] ULTIMATE.startENTRY-->L17-2: Formula: true InVars {} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_14|, ULTIMATE.start_main_#t~nondet3#1=|v_ULTIMATE.start_main_#t~nondet3#1_6|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_16|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_4|, ULTIMATE.start_main_#t~nondet1#1=|v_ULTIMATE.start_main_#t~nondet1#1_3|, ULTIMATE.start_main_#t~nondet2#1=|v_ULTIMATE.start_main_#t~nondet2#1_6|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_#t~nondet3#1, ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_#t~nondet1#1, ULTIMATE.start_main_#t~nondet2#1, ULTIMATE.start_main_#t~nondet0#1] 2#L17-2true [2023-02-13 03:40:02,474 INFO L735 eck$LassoCheckResult]: Loop: 2#L17-2true [47] L17-2-->L20-2: Formula: (and (= (+ (- 1) |v_ULTIMATE.start_main_~x~0#1_8|) |v_ULTIMATE.start_main_~x~0#1_7|) (<= 2 |v_ULTIMATE.start_main_~x~0#1_8|) (= (+ |v_ULTIMATE.start_main_~x~0#1_7| |v_ULTIMATE.start_main_~y~0#1_9|) |v_ULTIMATE.start_main_~y~0#1_8|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_8|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_9|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_7|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_8|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1] 4#L20-2true [66] L20-2-->L20-3: Formula: (> (+ |v_ULTIMATE.start_main_~x~0#1_9| 1) |v_ULTIMATE.start_main_~y~0#1_10|) InVars {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_10|} 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_10|} AuxVars[] AssignedVars[] 5#L20-3true [52] L20-3-->L17-2: Formula: (and (= |v_ULTIMATE.start_main_~x~0#1_4| (+ (- 1) |v_ULTIMATE.start_main_~x~0#1_5|)) (= (+ (* (- 1) |v_ULTIMATE.start_main_~x~0#1_4|) |v_ULTIMATE.start_main_~y~0#1_7|) |v_ULTIMATE.start_main_~y~0#1_6|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_7|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_4|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_6|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1] 2#L17-2true [2023-02-13 03:40:02,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:02,477 INFO L85 PathProgramCache]: Analyzing trace with hash 105, now seen corresponding path program 1 times [2023-02-13 03:40:02,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:02,483 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35789758] [2023-02-13 03:40:02,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:02,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:02,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:02,527 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:02,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:02,537 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:02,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:02,539 INFO L85 PathProgramCache]: Analyzing trace with hash 77056, now seen corresponding path program 1 times [2023-02-13 03:40:02,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:02,539 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295530385] [2023-02-13 03:40:02,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:02,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:02,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:02,546 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:02,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:02,550 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:02,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:02,551 INFO L85 PathProgramCache]: Analyzing trace with hash 3175320, now seen corresponding path program 1 times [2023-02-13 03:40:02,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:02,552 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817183157] [2023-02-13 03:40:02,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:02,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:02,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:02,556 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:02,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:02,560 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:02,611 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:02,612 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:02,612 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:02,612 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:02,612 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-13 03:40:02,612 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:02,612 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:02,612 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:02,612 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2023-02-13 03:40:02,612 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:02,612 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:02,620 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:02,627 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:02,629 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:02,664 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:02,664 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-13 03:40:02,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:02,666 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:02,667 INFO L229 MonitoredProcess]: Starting monitored process 2 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:02,668 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-02-13 03:40:02,669 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:02,669 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:02,681 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:02,681 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:02,696 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-02-13 03:40:02,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:02,697 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:02,698 INFO L229 MonitoredProcess]: Starting monitored process 3 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:02,701 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-02-13 03:40:02,701 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:02,701 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:02,710 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:02,710 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:02,732 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2023-02-13 03:40:02,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:02,733 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:02,734 INFO L229 MonitoredProcess]: Starting monitored process 4 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:02,735 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-02-13 03:40:02,735 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:02,735 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:02,755 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2023-02-13 03:40:02,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:02,756 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:02,756 INFO L229 MonitoredProcess]: Starting monitored process 5 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:02,757 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-02-13 03:40:02,758 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-13 03:40:02,758 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:02,799 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-13 03:40:02,802 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2023-02-13 03:40:02,803 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:02,803 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:02,804 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:02,804 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:02,804 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-13 03:40:02,804 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:02,805 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:02,805 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:02,805 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2023-02-13 03:40:02,805 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:02,806 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:02,809 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:02,815 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:02,818 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:02,872 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:02,877 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-13 03:40:02,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:02,888 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:02,889 INFO L229 MonitoredProcess]: Starting monitored process 6 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:02,891 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-02-13 03:40:02,892 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:02,897 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:02,897 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:02,897 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:02,898 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:02,900 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:40:02,900 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:40:02,903 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:40:02,920 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2023-02-13 03:40:02,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:02,921 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:02,922 INFO L229 MonitoredProcess]: Starting monitored process 7 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:02,922 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-02-13 03:40:02,923 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:02,927 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:02,927 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:02,927 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:02,927 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:02,929 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:40:02,929 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:40:02,932 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:40:02,949 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2023-02-13 03:40:02,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:02,949 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:02,950 INFO L229 MonitoredProcess]: Starting monitored process 8 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:02,951 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-02-13 03:40:02,956 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:02,961 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:02,961 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:40:02,962 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:02,962 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:02,962 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:02,964 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:40:02,965 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:40:02,968 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-13 03:40:02,973 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-13 03:40:02,974 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-13 03:40:02,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:02,976 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:02,977 INFO L229 MonitoredProcess]: Starting monitored process 9 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:02,979 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-02-13 03:40:02,980 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-13 03:40:02,980 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-13 03:40:02,981 INFO L513 LassoAnalysis]: Proved termination. [2023-02-13 03:40:02,982 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2023-02-13 03:40:03,003 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2023-02-13 03:40:03,006 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-13 03:40:03,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:03,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:03,031 WARN L261 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-13 03:40:03,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:03,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:03,048 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-13 03:40:03,050 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:03,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 03:40:03,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:03,131 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-13 03:40:03,131 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:03,151 INFO L100 LoopCannibalizer]: 3 predicates before loop cannibalization 5 predicates after loop cannibalization [2023-02-13 03:40:03,154 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 5 loop predicates [2023-02-13 03:40:03,155 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:03,195 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second 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) Result 20 states and 45 transitions. Complement of second has 6 states. [2023-02-13 03:40:03,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-02-13 03:40:03,199 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 03:40:03,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 27 transitions. [2023-02-13 03:40:03,200 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 1 letters. Loop has 3 letters. [2023-02-13 03:40:03,201 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:03,201 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 4 letters. Loop has 3 letters. [2023-02-13 03:40:03,201 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:03,201 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 1 letters. Loop has 6 letters. [2023-02-13 03:40:03,201 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:03,204 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 45 transitions. [2023-02-13 03:40:03,205 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2023-02-13 03:40:03,208 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 17 states and 39 transitions. [2023-02-13 03:40:03,208 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2023-02-13 03:40:03,208 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2023-02-13 03:40:03,209 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 39 transitions. [2023-02-13 03:40:03,209 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-13 03:40:03,209 INFO L220 hiAutomatonCegarLoop]: Abstraction has 17 states and 39 transitions. [2023-02-13 03:40:03,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 39 transitions. [2023-02-13 03:40:03,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2023-02-13 03:40:03,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 2.1875) internal successors, (35), 15 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:03,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 35 transitions. [2023-02-13 03:40:03,224 INFO L242 hiAutomatonCegarLoop]: Abstraction has 16 states and 35 transitions. [2023-02-13 03:40:03,224 INFO L426 stractBuchiCegarLoop]: Abstraction has 16 states and 35 transitions. [2023-02-13 03:40:03,224 INFO L333 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-02-13 03:40:03,224 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 35 transitions. [2023-02-13 03:40:03,224 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2023-02-13 03:40:03,224 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:40:03,225 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:40:03,225 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-02-13 03:40:03,225 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-02-13 03:40:03,225 INFO L733 eck$LassoCheckResult]: Stem: 77#ULTIMATE.startENTRY [74] ULTIMATE.startENTRY-->L17-2: Formula: true InVars {} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_14|, ULTIMATE.start_main_#t~nondet3#1=|v_ULTIMATE.start_main_#t~nondet3#1_6|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_16|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_4|, ULTIMATE.start_main_#t~nondet1#1=|v_ULTIMATE.start_main_#t~nondet1#1_3|, ULTIMATE.start_main_#t~nondet2#1=|v_ULTIMATE.start_main_#t~nondet2#1_6|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_#t~nondet3#1, ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_#t~nondet1#1, ULTIMATE.start_main_#t~nondet2#1, ULTIMATE.start_main_#t~nondet0#1] 74#L17-2 [47] L17-2-->L20-2: Formula: (and (= (+ (- 1) |v_ULTIMATE.start_main_~x~0#1_8|) |v_ULTIMATE.start_main_~x~0#1_7|) (<= 2 |v_ULTIMATE.start_main_~x~0#1_8|) (= (+ |v_ULTIMATE.start_main_~x~0#1_7| |v_ULTIMATE.start_main_~y~0#1_9|) |v_ULTIMATE.start_main_~y~0#1_8|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_8|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_9|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_7|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_8|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1] 75#L20-2 [69] L20-2-->L22-2: Formula: (and (> |v_ULTIMATE.start_main_#t~nondet2#1_5| 0) (= |v_ULTIMATE.start_main_~y~0#1_11| (+ (- 1) |v_ULTIMATE.start_main_~y~0#1_12|)) (<= (+ |v_ULTIMATE.start_main_~x~0#1_10| 1) |v_ULTIMATE.start_main_~y~0#1_12|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_10|, ULTIMATE.start_main_#t~nondet2#1=|v_ULTIMATE.start_main_#t~nondet2#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_12|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_10|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_11|} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_#t~nondet2#1] 79#L22-2 [2023-02-13 03:40:03,225 INFO L735 eck$LassoCheckResult]: Loop: 79#L22-2 [70] L22-2-->L22-3: Formula: (= |v_ULTIMATE.start_main_#t~nondet3#1_3| 0) InVars {ULTIMATE.start_main_#t~nondet3#1=|v_ULTIMATE.start_main_#t~nondet3#1_3|} OutVars{} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3#1] 85#L22-3 [53] L22-3-->L20-2: Formula: (= |v_ULTIMATE.start_main_~y~0#1_1| (+ (- 1) |v_ULTIMATE.start_main_~y~0#1_2|)) InVars {ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_2|} OutVars{ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0#1] 78#L20-2 [68] L20-2-->L22-2: Formula: (and (< |v_ULTIMATE.start_main_#t~nondet2#1_5| 0) (= |v_ULTIMATE.start_main_~y~0#1_11| (+ (- 1) |v_ULTIMATE.start_main_~y~0#1_12|)) (<= (+ |v_ULTIMATE.start_main_~x~0#1_10| 1) |v_ULTIMATE.start_main_~y~0#1_12|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_10|, ULTIMATE.start_main_#t~nondet2#1=|v_ULTIMATE.start_main_#t~nondet2#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_12|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_10|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_11|} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_#t~nondet2#1] 79#L22-2 [2023-02-13 03:40:03,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:03,226 INFO L85 PathProgramCache]: Analyzing trace with hash 102431, now seen corresponding path program 1 times [2023-02-13 03:40:03,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:03,226 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121253371] [2023-02-13 03:40:03,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:03,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:03,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:03,229 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:03,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:03,232 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:03,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:03,233 INFO L85 PathProgramCache]: Analyzing trace with hash 98772, now seen corresponding path program 1 times [2023-02-13 03:40:03,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:03,233 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326274504] [2023-02-13 03:40:03,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:03,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:03,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:03,236 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:03,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:03,238 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:03,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:03,239 INFO L85 PathProgramCache]: Analyzing trace with hash -1243376394, now seen corresponding path program 1 times [2023-02-13 03:40:03,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:03,239 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867919431] [2023-02-13 03:40:03,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:03,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:03,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:03,244 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:03,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:03,248 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:03,261 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:03,262 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:03,262 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:03,262 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:03,262 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-13 03:40:03,262 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:03,262 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:03,262 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:03,262 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2023-02-13 03:40:03,262 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:03,262 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:03,263 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:03,264 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:03,266 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:03,269 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:03,271 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:03,295 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:03,295 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-13 03:40:03,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:03,295 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:03,296 INFO L229 MonitoredProcess]: Starting monitored process 10 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:03,298 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-02-13 03:40:03,299 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:03,299 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:03,307 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:03,307 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:03,322 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-02-13 03:40:03,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:03,322 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:03,323 INFO L229 MonitoredProcess]: Starting monitored process 11 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:03,324 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-02-13 03:40:03,324 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:03,324 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:03,332 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:03,332 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:03,356 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2023-02-13 03:40:03,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:03,357 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:03,358 INFO L229 MonitoredProcess]: Starting monitored process 12 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:03,359 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-02-13 03:40:03,360 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:03,360 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:03,390 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2023-02-13 03:40:03,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:03,391 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:03,392 INFO L229 MonitoredProcess]: Starting monitored process 13 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:03,393 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-02-13 03:40:03,394 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-13 03:40:03,394 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:03,579 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-13 03:40:03,583 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-02-13 03:40:03,583 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:03,584 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:03,584 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:03,584 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:03,585 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-13 03:40:03,585 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:03,585 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:03,585 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:03,586 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2023-02-13 03:40:03,586 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:03,586 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:03,588 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:03,591 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:03,593 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:03,597 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:03,599 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:03,634 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:03,634 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-13 03:40:03,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:03,635 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:03,636 INFO L229 MonitoredProcess]: Starting monitored process 14 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:03,640 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-02-13 03:40:03,641 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:03,649 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:03,650 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:03,650 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:03,650 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:03,654 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:40:03,655 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:40:03,661 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:40:03,708 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2023-02-13 03:40:03,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:03,709 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:03,711 INFO L229 MonitoredProcess]: Starting monitored process 15 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:03,712 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-02-13 03:40:03,713 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:03,718 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:03,719 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:03,719 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:03,719 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:03,724 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:40:03,724 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:40:03,732 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:40:03,767 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2023-02-13 03:40:03,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:03,768 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:03,769 INFO L229 MonitoredProcess]: Starting monitored process 16 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:03,770 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-02-13 03:40:03,771 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:03,781 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:03,781 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:40:03,782 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:03,782 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:03,782 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:03,784 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:40:03,785 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:40:03,789 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-13 03:40:03,797 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-02-13 03:40:03,798 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-13 03:40:03,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:03,798 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:03,803 INFO L229 MonitoredProcess]: Starting monitored process 17 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:03,805 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-02-13 03:40:03,806 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-13 03:40:03,806 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-13 03:40:03,806 INFO L513 LassoAnalysis]: Proved termination. [2023-02-13 03:40:03,807 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1) = -1*ULTIMATE.start_main_~x~0#1 + 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2023-02-13 03:40:03,844 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2023-02-13 03:40:03,845 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-13 03:40:03,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:03,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:03,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-13 03:40:03,868 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:03,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:03,877 WARN L261 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-13 03:40:03,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:03,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 03:40:03,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:03,897 WARN L261 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-13 03:40:03,898 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:03,926 INFO L100 LoopCannibalizer]: 2 predicates before loop cannibalization 3 predicates after loop cannibalization [2023-02-13 03:40:03,926 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2023-02-13 03:40:03,927 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 16 states and 35 transitions. cyclomatic complexity: 22 Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:03,984 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 16 states and 35 transitions. cyclomatic complexity: 22. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 37 states and 85 transitions. Complement of second has 6 states. [2023-02-13 03:40:03,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-02-13 03:40:03,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:03,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2023-02-13 03:40:03,987 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 3 letters. Loop has 3 letters. [2023-02-13 03:40:03,987 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:03,988 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 6 letters. Loop has 3 letters. [2023-02-13 03:40:03,988 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:03,988 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 3 letters. Loop has 6 letters. [2023-02-13 03:40:03,989 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:03,990 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 85 transitions. [2023-02-13 03:40:03,994 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 15 [2023-02-13 03:40:03,997 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 33 states and 76 transitions. [2023-02-13 03:40:03,997 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2023-02-13 03:40:03,997 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2023-02-13 03:40:03,998 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 76 transitions. [2023-02-13 03:40:03,998 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-13 03:40:03,998 INFO L220 hiAutomatonCegarLoop]: Abstraction has 33 states and 76 transitions. [2023-02-13 03:40:03,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 76 transitions. [2023-02-13 03:40:04,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 31. [2023-02-13 03:40:04,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 31 states have (on average 2.3870967741935485) internal successors, (74), 30 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:04,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 74 transitions. [2023-02-13 03:40:04,004 INFO L242 hiAutomatonCegarLoop]: Abstraction has 31 states and 74 transitions. [2023-02-13 03:40:04,004 INFO L426 stractBuchiCegarLoop]: Abstraction has 31 states and 74 transitions. [2023-02-13 03:40:04,004 INFO L333 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-02-13 03:40:04,004 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 74 transitions. [2023-02-13 03:40:04,006 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 14 [2023-02-13 03:40:04,006 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:40:04,006 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:40:04,007 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-02-13 03:40:04,007 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-02-13 03:40:04,007 INFO L733 eck$LassoCheckResult]: Stem: 179#ULTIMATE.startENTRY [74] ULTIMATE.startENTRY-->L17-2: Formula: true InVars {} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_14|, ULTIMATE.start_main_#t~nondet3#1=|v_ULTIMATE.start_main_#t~nondet3#1_6|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_16|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_4|, ULTIMATE.start_main_#t~nondet1#1=|v_ULTIMATE.start_main_#t~nondet1#1_3|, ULTIMATE.start_main_#t~nondet2#1=|v_ULTIMATE.start_main_#t~nondet2#1_6|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_#t~nondet3#1, ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_#t~nondet1#1, ULTIMATE.start_main_#t~nondet2#1, ULTIMATE.start_main_#t~nondet0#1] 180#L17-2 [47] L17-2-->L20-2: Formula: (and (= (+ (- 1) |v_ULTIMATE.start_main_~x~0#1_8|) |v_ULTIMATE.start_main_~x~0#1_7|) (<= 2 |v_ULTIMATE.start_main_~x~0#1_8|) (= (+ |v_ULTIMATE.start_main_~x~0#1_7| |v_ULTIMATE.start_main_~y~0#1_9|) |v_ULTIMATE.start_main_~y~0#1_8|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_8|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_9|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_7|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_8|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1] 178#L20-2 [68] L20-2-->L22-2: Formula: (and (< |v_ULTIMATE.start_main_#t~nondet2#1_5| 0) (= |v_ULTIMATE.start_main_~y~0#1_11| (+ (- 1) |v_ULTIMATE.start_main_~y~0#1_12|)) (<= (+ |v_ULTIMATE.start_main_~x~0#1_10| 1) |v_ULTIMATE.start_main_~y~0#1_12|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_10|, ULTIMATE.start_main_#t~nondet2#1=|v_ULTIMATE.start_main_#t~nondet2#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_12|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_10|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_11|} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_#t~nondet2#1] 182#L22-2 [2023-02-13 03:40:04,007 INFO L735 eck$LassoCheckResult]: Loop: 182#L22-2 [70] L22-2-->L22-3: Formula: (= |v_ULTIMATE.start_main_#t~nondet3#1_3| 0) InVars {ULTIMATE.start_main_#t~nondet3#1=|v_ULTIMATE.start_main_#t~nondet3#1_3|} OutVars{} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3#1] 196#L22-3 [53] L22-3-->L20-2: Formula: (= |v_ULTIMATE.start_main_~y~0#1_1| (+ (- 1) |v_ULTIMATE.start_main_~y~0#1_2|)) InVars {ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_2|} OutVars{ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0#1] 181#L20-2 [68] L20-2-->L22-2: Formula: (and (< |v_ULTIMATE.start_main_#t~nondet2#1_5| 0) (= |v_ULTIMATE.start_main_~y~0#1_11| (+ (- 1) |v_ULTIMATE.start_main_~y~0#1_12|)) (<= (+ |v_ULTIMATE.start_main_~x~0#1_10| 1) |v_ULTIMATE.start_main_~y~0#1_12|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_10|, ULTIMATE.start_main_#t~nondet2#1=|v_ULTIMATE.start_main_#t~nondet2#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_12|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_10|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_11|} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_#t~nondet2#1] 182#L22-2 [2023-02-13 03:40:04,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:04,008 INFO L85 PathProgramCache]: Analyzing trace with hash 102430, now seen corresponding path program 1 times [2023-02-13 03:40:04,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:04,009 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307199269] [2023-02-13 03:40:04,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:04,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:04,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:04,015 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:04,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:04,019 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:04,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:04,020 INFO L85 PathProgramCache]: Analyzing trace with hash 98772, now seen corresponding path program 2 times [2023-02-13 03:40:04,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:04,020 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667099142] [2023-02-13 03:40:04,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:04,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:04,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:04,023 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:04,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:04,026 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:04,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:04,026 INFO L85 PathProgramCache]: Analyzing trace with hash -1243406185, now seen corresponding path program 1 times [2023-02-13 03:40:04,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:04,027 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080881090] [2023-02-13 03:40:04,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:04,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:04,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:04,031 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:04,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:04,034 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:04,060 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:04,060 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:04,060 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:04,060 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:04,060 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-13 03:40:04,060 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:04,061 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:04,061 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:04,061 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2023-02-13 03:40:04,061 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:04,061 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:04,062 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:04,064 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:04,067 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:04,072 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:04,074 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:04,117 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:04,118 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-13 03:40:04,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:04,118 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:04,120 INFO L229 MonitoredProcess]: Starting monitored process 18 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:04,122 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-02-13 03:40:04,122 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:04,123 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:04,135 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:04,135 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:04,174 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2023-02-13 03:40:04,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:04,175 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:04,176 INFO L229 MonitoredProcess]: Starting monitored process 19 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:04,177 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-02-13 03:40:04,178 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:04,178 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:04,196 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:04,196 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2#1=-1} Honda state: {ULTIMATE.start_main_#t~nondet2#1=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:04,223 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2023-02-13 03:40:04,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:04,224 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:04,225 INFO L229 MonitoredProcess]: Starting monitored process 20 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:04,229 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-02-13 03:40:04,229 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:04,230 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:04,263 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2023-02-13 03:40:04,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:04,264 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:04,265 INFO L229 MonitoredProcess]: Starting monitored process 21 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:04,266 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2023-02-13 03:40:04,267 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-13 03:40:04,267 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:04,435 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-13 03:40:04,437 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2023-02-13 03:40:04,437 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:04,437 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:04,438 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:04,438 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:04,438 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-13 03:40:04,438 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:04,438 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:04,439 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:04,439 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2023-02-13 03:40:04,439 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:04,439 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:04,441 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:04,445 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:04,448 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:04,454 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:04,458 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:04,506 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:04,506 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-13 03:40:04,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:04,507 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:04,508 INFO L229 MonitoredProcess]: Starting monitored process 22 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:04,510 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-02-13 03:40:04,512 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:04,522 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:04,523 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:40:04,523 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:04,523 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:04,524 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:04,525 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:40:04,525 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:40:04,527 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:40:04,558 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2023-02-13 03:40:04,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:04,558 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:04,559 INFO L229 MonitoredProcess]: Starting monitored process 23 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:04,560 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2023-02-13 03:40:04,561 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:04,570 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:04,571 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:04,571 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:04,571 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:04,573 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:40:04,574 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:40:04,581 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:40:04,623 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2023-02-13 03:40:04,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:04,623 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:04,625 INFO L229 MonitoredProcess]: Starting monitored process 24 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:04,626 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2023-02-13 03:40:04,626 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:04,632 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:04,632 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:40:04,632 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:04,632 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:04,633 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:04,633 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:40:04,634 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:40:04,638 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-13 03:40:04,664 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-02-13 03:40:04,664 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-13 03:40:04,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:04,665 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:04,668 INFO L229 MonitoredProcess]: Starting monitored process 25 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:04,674 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2023-02-13 03:40:04,675 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-13 03:40:04,675 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-13 03:40:04,676 INFO L513 LassoAnalysis]: Proved termination. [2023-02-13 03:40:04,676 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~y~0#1 - 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2023-02-13 03:40:04,690 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2023-02-13 03:40:04,698 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2023-02-13 03:40:04,700 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-13 03:40:04,707 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2023-02-13 03:40:04,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:04,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:04,715 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-13 03:40:04,716 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:04,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:04,721 WARN L261 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-13 03:40:04,722 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:04,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 03:40:04,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:04,735 WARN L261 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-13 03:40:04,735 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:04,756 INFO L100 LoopCannibalizer]: 2 predicates before loop cannibalization 3 predicates after loop cannibalization [2023-02-13 03:40:04,756 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2023-02-13 03:40:04,756 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 31 states and 74 transitions. cyclomatic complexity: 47 Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:04,820 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 31 states and 74 transitions. cyclomatic complexity: 47. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 79 states and 195 transitions. Complement of second has 6 states. [2023-02-13 03:40:04,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-02-13 03:40:04,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:04,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2023-02-13 03:40:04,823 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 3 letters. Loop has 3 letters. [2023-02-13 03:40:04,823 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:04,823 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 6 letters. Loop has 3 letters. [2023-02-13 03:40:04,824 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:04,824 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 3 letters. Loop has 6 letters. [2023-02-13 03:40:04,824 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:04,826 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 79 states and 195 transitions. [2023-02-13 03:40:04,831 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 26 [2023-02-13 03:40:04,832 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 79 states to 62 states and 152 transitions. [2023-02-13 03:40:04,832 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2023-02-13 03:40:04,833 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2023-02-13 03:40:04,833 INFO L73 IsDeterministic]: Start isDeterministic. Operand 62 states and 152 transitions. [2023-02-13 03:40:04,833 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-13 03:40:04,833 INFO L220 hiAutomatonCegarLoop]: Abstraction has 62 states and 152 transitions. [2023-02-13 03:40:04,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states and 152 transitions. [2023-02-13 03:40:04,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 23. [2023-02-13 03:40:04,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 23 states have (on average 2.391304347826087) internal successors, (55), 22 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:04,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 55 transitions. [2023-02-13 03:40:04,837 INFO L242 hiAutomatonCegarLoop]: Abstraction has 23 states and 55 transitions. [2023-02-13 03:40:04,837 INFO L426 stractBuchiCegarLoop]: Abstraction has 23 states and 55 transitions. [2023-02-13 03:40:04,837 INFO L333 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-02-13 03:40:04,837 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 55 transitions. [2023-02-13 03:40:04,838 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2023-02-13 03:40:04,838 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:40:04,838 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:40:04,838 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2023-02-13 03:40:04,838 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2023-02-13 03:40:04,839 INFO L733 eck$LassoCheckResult]: Stem: 336#ULTIMATE.startENTRY [74] ULTIMATE.startENTRY-->L17-2: Formula: true InVars {} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_14|, ULTIMATE.start_main_#t~nondet3#1=|v_ULTIMATE.start_main_#t~nondet3#1_6|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_16|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_4|, ULTIMATE.start_main_#t~nondet1#1=|v_ULTIMATE.start_main_#t~nondet1#1_3|, ULTIMATE.start_main_#t~nondet2#1=|v_ULTIMATE.start_main_#t~nondet2#1_6|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_#t~nondet3#1, ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_#t~nondet1#1, ULTIMATE.start_main_#t~nondet2#1, ULTIMATE.start_main_#t~nondet0#1] 333#L17-2 [47] L17-2-->L20-2: Formula: (and (= (+ (- 1) |v_ULTIMATE.start_main_~x~0#1_8|) |v_ULTIMATE.start_main_~x~0#1_7|) (<= 2 |v_ULTIMATE.start_main_~x~0#1_8|) (= (+ |v_ULTIMATE.start_main_~x~0#1_7| |v_ULTIMATE.start_main_~y~0#1_9|) |v_ULTIMATE.start_main_~y~0#1_8|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_8|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_9|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_7|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_8|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1] 334#L20-2 [69] L20-2-->L22-2: Formula: (and (> |v_ULTIMATE.start_main_#t~nondet2#1_5| 0) (= |v_ULTIMATE.start_main_~y~0#1_11| (+ (- 1) |v_ULTIMATE.start_main_~y~0#1_12|)) (<= (+ |v_ULTIMATE.start_main_~x~0#1_10| 1) |v_ULTIMATE.start_main_~y~0#1_12|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_10|, ULTIMATE.start_main_#t~nondet2#1=|v_ULTIMATE.start_main_#t~nondet2#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_12|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_10|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_11|} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_#t~nondet2#1] 345#L22-2 [73] L22-2-->L22-2: Formula: (and (<= (+ |v_ULTIMATE.start_main_~x~0#1_13| 3) |v_ULTIMATE.start_main_~y~0#1_15|) (= (+ (- 2) |v_ULTIMATE.start_main_~y~0#1_15|) |v_ULTIMATE.start_main_~y~0#1_14|) (< |v_ULTIMATE.start_main_#t~nondet3#1_5| 0) (= |v_ULTIMATE.start_main_~x~0#1_12| (+ |v_ULTIMATE.start_main_~x~0#1_13| 1))) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_13|, ULTIMATE.start_main_#t~nondet3#1=|v_ULTIMATE.start_main_#t~nondet3#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_15|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_12|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_14|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_#t~nondet3#1, ULTIMATE.start_main_~y~0#1] 346#L22-2 [71] L22-2-->L22-3: Formula: (> (+ |v_ULTIMATE.start_main_~x~0#1_11| 3) |v_ULTIMATE.start_main_~y~0#1_13|) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_11|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_13|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_11|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_13|} AuxVars[] AssignedVars[] 343#L22-3 [2023-02-13 03:40:04,839 INFO L735 eck$LassoCheckResult]: Loop: 343#L22-3 [53] L22-3-->L20-2: Formula: (= |v_ULTIMATE.start_main_~y~0#1_1| (+ (- 1) |v_ULTIMATE.start_main_~y~0#1_2|)) InVars {ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_2|} OutVars{ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0#1] 337#L20-2 [66] L20-2-->L20-3: Formula: (> (+ |v_ULTIMATE.start_main_~x~0#1_9| 1) |v_ULTIMATE.start_main_~y~0#1_10|) InVars {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_10|} 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_10|} AuxVars[] AssignedVars[] 338#L20-3 [52] L20-3-->L17-2: Formula: (and (= |v_ULTIMATE.start_main_~x~0#1_4| (+ (- 1) |v_ULTIMATE.start_main_~x~0#1_5|)) (= (+ (* (- 1) |v_ULTIMATE.start_main_~x~0#1_4|) |v_ULTIMATE.start_main_~y~0#1_7|) |v_ULTIMATE.start_main_~y~0#1_6|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_7|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_4|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_6|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1] 341#L17-2 [47] L17-2-->L20-2: Formula: (and (= (+ (- 1) |v_ULTIMATE.start_main_~x~0#1_8|) |v_ULTIMATE.start_main_~x~0#1_7|) (<= 2 |v_ULTIMATE.start_main_~x~0#1_8|) (= (+ |v_ULTIMATE.start_main_~x~0#1_7| |v_ULTIMATE.start_main_~y~0#1_9|) |v_ULTIMATE.start_main_~y~0#1_8|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_8|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_9|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_7|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_8|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1] 348#L20-2 [68] L20-2-->L22-2: Formula: (and (< |v_ULTIMATE.start_main_#t~nondet2#1_5| 0) (= |v_ULTIMATE.start_main_~y~0#1_11| (+ (- 1) |v_ULTIMATE.start_main_~y~0#1_12|)) (<= (+ |v_ULTIMATE.start_main_~x~0#1_10| 1) |v_ULTIMATE.start_main_~y~0#1_12|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_10|, ULTIMATE.start_main_#t~nondet2#1=|v_ULTIMATE.start_main_#t~nondet2#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_12|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_10|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_11|} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_#t~nondet2#1] 354#L22-2 [70] L22-2-->L22-3: Formula: (= |v_ULTIMATE.start_main_#t~nondet3#1_3| 0) InVars {ULTIMATE.start_main_#t~nondet3#1=|v_ULTIMATE.start_main_#t~nondet3#1_3|} OutVars{} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3#1] 343#L22-3 [2023-02-13 03:40:04,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:04,839 INFO L85 PathProgramCache]: Analyzing trace with hash 98438525, now seen corresponding path program 1 times [2023-02-13 03:40:04,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:04,840 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462300670] [2023-02-13 03:40:04,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:04,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:04,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:04,846 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:04,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:04,850 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:04,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:04,850 INFO L85 PathProgramCache]: Analyzing trace with hash -1827569749, now seen corresponding path program 1 times [2023-02-13 03:40:04,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:04,850 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923790297] [2023-02-13 03:40:04,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:04,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:04,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:04,854 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:04,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:04,857 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:04,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:04,858 INFO L85 PathProgramCache]: Analyzing trace with hash -1963556825, now seen corresponding path program 1 times [2023-02-13 03:40:04,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:04,858 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192902951] [2023-02-13 03:40:04,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:04,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:04,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:04,864 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:04,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:04,871 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:04,911 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:04,911 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:04,911 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:04,911 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:04,911 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-13 03:40:04,911 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:04,911 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:04,911 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:04,912 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2023-02-13 03:40:04,912 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:04,912 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:04,912 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:04,914 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:04,922 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:04,923 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:04,925 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:04,985 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:04,986 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-13 03:40:04,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:04,986 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:04,988 INFO L229 MonitoredProcess]: Starting monitored process 26 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:04,990 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2023-02-13 03:40:04,991 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:04,991 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:05,007 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:05,007 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2#1=-1} Honda state: {ULTIMATE.start_main_#t~nondet2#1=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:05,046 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2023-02-13 03:40:05,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:05,047 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:05,048 INFO L229 MonitoredProcess]: Starting monitored process 27 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:05,050 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2023-02-13 03:40:05,051 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:05,051 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:05,096 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2023-02-13 03:40:05,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:05,097 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:05,097 INFO L229 MonitoredProcess]: Starting monitored process 28 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:05,099 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2023-02-13 03:40:05,099 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-13 03:40:05,099 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:05,174 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-13 03:40:05,175 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2023-02-13 03:40:05,175 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:05,175 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:05,175 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:05,175 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:05,176 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-13 03:40:05,176 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:05,176 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:05,176 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:05,176 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2023-02-13 03:40:05,176 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:05,176 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:05,177 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:05,179 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:05,187 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:05,190 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:05,192 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:05,261 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:05,262 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-13 03:40:05,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:05,262 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:05,264 INFO L229 MonitoredProcess]: Starting monitored process 29 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:05,267 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2023-02-13 03:40:05,268 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:05,276 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:05,277 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:40:05,277 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:05,278 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:05,278 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:05,279 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:40:05,279 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:40:05,282 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:40:05,323 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2023-02-13 03:40:05,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:05,324 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:05,325 INFO L229 MonitoredProcess]: Starting monitored process 30 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:05,328 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2023-02-13 03:40:05,328 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:05,334 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:05,334 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:40:05,335 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:05,335 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:05,335 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:05,337 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:40:05,337 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:40:05,343 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-13 03:40:05,347 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-02-13 03:40:05,347 INFO L444 ModelExtractionUtils]: 2 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-13 03:40:05,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:05,347 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:05,348 INFO L229 MonitoredProcess]: Starting monitored process 31 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:05,352 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2023-02-13 03:40:05,352 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-13 03:40:05,352 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-13 03:40:05,352 INFO L513 LassoAnalysis]: Proved termination. [2023-02-13 03:40:05,353 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2023-02-13 03:40:05,390 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2023-02-13 03:40:05,391 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-13 03:40:05,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:05,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:05,411 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-13 03:40:05,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:05,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:05,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 9 conjunts are in the unsatisfiable core [2023-02-13 03:40:05,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:05,514 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 03:40:05,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:05,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 9 conjunts are in the unsatisfiable core [2023-02-13 03:40:05,559 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:05,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:05,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 8 conjunts are in the unsatisfiable core [2023-02-13 03:40:05,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:05,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:05,798 WARN L261 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 10 conjunts are in the unsatisfiable core [2023-02-13 03:40:05,799 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:05,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:05,971 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 9 conjunts are in the unsatisfiable core [2023-02-13 03:40:05,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:05,992 INFO L100 LoopCannibalizer]: 7 predicates before loop cannibalization 16 predicates after loop cannibalization [2023-02-13 03:40:05,992 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 16 loop predicates [2023-02-13 03:40:05,993 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 23 states and 55 transitions. cyclomatic complexity: 35 Second operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:06,262 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2023-02-13 03:40:06,278 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2023-02-13 03:40:06,633 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 23 states and 55 transitions. cyclomatic complexity: 35. Second operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 486 states and 926 transitions. Complement of second has 89 states. [2023-02-13 03:40:06,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 16 states 1 stem states 14 non-accepting loop states 1 accepting loop states [2023-02-13 03:40:06,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:06,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 74 transitions. [2023-02-13 03:40:06,637 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 16 states and 74 transitions. Stem has 5 letters. Loop has 6 letters. [2023-02-13 03:40:06,638 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:06,638 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 16 states and 74 transitions. Stem has 11 letters. Loop has 6 letters. [2023-02-13 03:40:06,639 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:06,639 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 16 states and 74 transitions. Stem has 5 letters. Loop has 12 letters. [2023-02-13 03:40:06,640 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:06,642 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 486 states and 926 transitions. [2023-02-13 03:40:06,654 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2023-02-13 03:40:06,658 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 486 states to 246 states and 479 transitions. [2023-02-13 03:40:06,658 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 37 [2023-02-13 03:40:06,658 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 50 [2023-02-13 03:40:06,659 INFO L73 IsDeterministic]: Start isDeterministic. Operand 246 states and 479 transitions. [2023-02-13 03:40:06,659 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-13 03:40:06,659 INFO L220 hiAutomatonCegarLoop]: Abstraction has 246 states and 479 transitions. [2023-02-13 03:40:06,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states and 479 transitions. [2023-02-13 03:40:06,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 62. [2023-02-13 03:40:06,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 62 states have (on average 2.370967741935484) internal successors, (147), 61 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:06,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 147 transitions. [2023-02-13 03:40:06,665 INFO L242 hiAutomatonCegarLoop]: Abstraction has 62 states and 147 transitions. [2023-02-13 03:40:06,665 INFO L426 stractBuchiCegarLoop]: Abstraction has 62 states and 147 transitions. [2023-02-13 03:40:06,665 INFO L333 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-02-13 03:40:06,666 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 62 states and 147 transitions. [2023-02-13 03:40:06,666 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2023-02-13 03:40:06,666 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:40:06,666 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:40:06,667 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2023-02-13 03:40:06,667 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2023-02-13 03:40:06,667 INFO L733 eck$LassoCheckResult]: Stem: 1085#ULTIMATE.startENTRY [74] ULTIMATE.startENTRY-->L17-2: Formula: true InVars {} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_14|, ULTIMATE.start_main_#t~nondet3#1=|v_ULTIMATE.start_main_#t~nondet3#1_6|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_16|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_4|, ULTIMATE.start_main_#t~nondet1#1=|v_ULTIMATE.start_main_#t~nondet1#1_3|, ULTIMATE.start_main_#t~nondet2#1=|v_ULTIMATE.start_main_#t~nondet2#1_6|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_#t~nondet3#1, ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_#t~nondet1#1, ULTIMATE.start_main_#t~nondet2#1, ULTIMATE.start_main_#t~nondet0#1] 1086#L17-2 [47] L17-2-->L20-2: Formula: (and (= (+ (- 1) |v_ULTIMATE.start_main_~x~0#1_8|) |v_ULTIMATE.start_main_~x~0#1_7|) (<= 2 |v_ULTIMATE.start_main_~x~0#1_8|) (= (+ |v_ULTIMATE.start_main_~x~0#1_7| |v_ULTIMATE.start_main_~y~0#1_9|) |v_ULTIMATE.start_main_~y~0#1_8|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_8|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_9|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_7|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_8|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1] 1114#L20-2 [69] L20-2-->L22-2: Formula: (and (> |v_ULTIMATE.start_main_#t~nondet2#1_5| 0) (= |v_ULTIMATE.start_main_~y~0#1_11| (+ (- 1) |v_ULTIMATE.start_main_~y~0#1_12|)) (<= (+ |v_ULTIMATE.start_main_~x~0#1_10| 1) |v_ULTIMATE.start_main_~y~0#1_12|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_10|, ULTIMATE.start_main_#t~nondet2#1=|v_ULTIMATE.start_main_#t~nondet2#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_12|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_10|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_11|} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_#t~nondet2#1] 1113#L22-2 [73] L22-2-->L22-2: Formula: (and (<= (+ |v_ULTIMATE.start_main_~x~0#1_13| 3) |v_ULTIMATE.start_main_~y~0#1_15|) (= (+ (- 2) |v_ULTIMATE.start_main_~y~0#1_15|) |v_ULTIMATE.start_main_~y~0#1_14|) (< |v_ULTIMATE.start_main_#t~nondet3#1_5| 0) (= |v_ULTIMATE.start_main_~x~0#1_12| (+ |v_ULTIMATE.start_main_~x~0#1_13| 1))) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_13|, ULTIMATE.start_main_#t~nondet3#1=|v_ULTIMATE.start_main_#t~nondet3#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_15|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_12|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_14|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_#t~nondet3#1, ULTIMATE.start_main_~y~0#1] 1105#L22-2 [70] L22-2-->L22-3: Formula: (= |v_ULTIMATE.start_main_#t~nondet3#1_3| 0) InVars {ULTIMATE.start_main_#t~nondet3#1=|v_ULTIMATE.start_main_#t~nondet3#1_3|} OutVars{} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3#1] 1104#L22-3 [2023-02-13 03:40:06,667 INFO L735 eck$LassoCheckResult]: Loop: 1104#L22-3 [53] L22-3-->L20-2: Formula: (= |v_ULTIMATE.start_main_~y~0#1_1| (+ (- 1) |v_ULTIMATE.start_main_~y~0#1_2|)) InVars {ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_2|} OutVars{ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0#1] 1103#L20-2 [66] L20-2-->L20-3: Formula: (> (+ |v_ULTIMATE.start_main_~x~0#1_9| 1) |v_ULTIMATE.start_main_~y~0#1_10|) InVars {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_10|} 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_10|} AuxVars[] AssignedVars[] 1100#L20-3 [52] L20-3-->L17-2: Formula: (and (= |v_ULTIMATE.start_main_~x~0#1_4| (+ (- 1) |v_ULTIMATE.start_main_~x~0#1_5|)) (= (+ (* (- 1) |v_ULTIMATE.start_main_~x~0#1_4|) |v_ULTIMATE.start_main_~y~0#1_7|) |v_ULTIMATE.start_main_~y~0#1_6|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_7|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_4|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_6|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1] 1102#L17-2 [47] L17-2-->L20-2: Formula: (and (= (+ (- 1) |v_ULTIMATE.start_main_~x~0#1_8|) |v_ULTIMATE.start_main_~x~0#1_7|) (<= 2 |v_ULTIMATE.start_main_~x~0#1_8|) (= (+ |v_ULTIMATE.start_main_~x~0#1_7| |v_ULTIMATE.start_main_~y~0#1_9|) |v_ULTIMATE.start_main_~y~0#1_8|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_8|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_9|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_7|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_8|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1] 1099#L20-2 [68] L20-2-->L22-2: Formula: (and (< |v_ULTIMATE.start_main_#t~nondet2#1_5| 0) (= |v_ULTIMATE.start_main_~y~0#1_11| (+ (- 1) |v_ULTIMATE.start_main_~y~0#1_12|)) (<= (+ |v_ULTIMATE.start_main_~x~0#1_10| 1) |v_ULTIMATE.start_main_~y~0#1_12|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_10|, ULTIMATE.start_main_#t~nondet2#1=|v_ULTIMATE.start_main_#t~nondet2#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_12|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_10|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_11|} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_#t~nondet2#1] 1101#L22-2 [70] L22-2-->L22-3: Formula: (= |v_ULTIMATE.start_main_#t~nondet3#1_3| 0) InVars {ULTIMATE.start_main_#t~nondet3#1=|v_ULTIMATE.start_main_#t~nondet3#1_3|} OutVars{} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3#1] 1104#L22-3 [2023-02-13 03:40:06,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:06,668 INFO L85 PathProgramCache]: Analyzing trace with hash 98438524, now seen corresponding path program 1 times [2023-02-13 03:40:06,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:06,668 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853791125] [2023-02-13 03:40:06,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:06,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:06,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:06,672 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:06,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:06,676 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:06,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:06,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1827569749, now seen corresponding path program 2 times [2023-02-13 03:40:06,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:06,676 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136918921] [2023-02-13 03:40:06,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:06,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:06,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:06,680 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:06,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:06,682 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:06,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:06,683 INFO L85 PathProgramCache]: Analyzing trace with hash 1443906790, now seen corresponding path program 1 times [2023-02-13 03:40:06,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:06,683 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398366136] [2023-02-13 03:40:06,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:06,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:06,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:06,688 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:06,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:06,692 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:06,717 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:06,717 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:06,717 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:06,718 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:06,718 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-13 03:40:06,718 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:06,718 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:06,718 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:06,718 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration5_Loop [2023-02-13 03:40:06,718 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:06,718 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:06,718 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:06,720 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:06,721 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:06,722 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:06,723 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:06,750 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:06,750 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-13 03:40:06,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:06,750 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:06,751 INFO L229 MonitoredProcess]: Starting monitored process 32 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:06,752 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2023-02-13 03:40:06,752 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:06,753 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:06,759 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:06,759 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3#1=0} Honda state: {ULTIMATE.start_main_#t~nondet3#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:06,778 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2023-02-13 03:40:06,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:06,778 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:06,779 INFO L229 MonitoredProcess]: Starting monitored process 33 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:06,781 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2023-02-13 03:40:06,781 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:06,781 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:06,798 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:06,799 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2#1=-1} Honda state: {ULTIMATE.start_main_#t~nondet2#1=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:06,825 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2023-02-13 03:40:06,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:06,826 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:06,827 INFO L229 MonitoredProcess]: Starting monitored process 34 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:06,828 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2023-02-13 03:40:06,829 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:06,829 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:06,846 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:06,846 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_9=1} Honda state: {v_rep~unnamed0~0~true_9=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:06,889 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2023-02-13 03:40:06,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:06,890 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:06,891 INFO L229 MonitoredProcess]: Starting monitored process 35 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:06,893 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2023-02-13 03:40:06,893 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:06,894 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:06,912 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:06,912 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_9=0} Honda state: {v_rep~unnamed0~0~false_9=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:06,944 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2023-02-13 03:40:06,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:06,944 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:06,946 INFO L229 MonitoredProcess]: Starting monitored process 36 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:06,947 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2023-02-13 03:40:06,948 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:06,949 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:06,990 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2023-02-13 03:40:06,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:06,991 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:06,992 INFO L229 MonitoredProcess]: Starting monitored process 37 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:06,994 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2023-02-13 03:40:06,995 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-13 03:40:06,995 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:07,092 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-13 03:40:07,094 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2023-02-13 03:40:07,095 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:07,095 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:07,095 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:07,095 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:07,096 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-13 03:40:07,096 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:07,096 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:07,096 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:07,097 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration5_Loop [2023-02-13 03:40:07,097 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:07,097 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:07,099 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:07,102 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:07,105 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:07,107 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:07,109 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:07,180 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:07,180 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-13 03:40:07,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:07,181 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:07,183 INFO L229 MonitoredProcess]: Starting monitored process 38 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:07,186 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2023-02-13 03:40:07,187 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:07,196 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:07,197 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:07,197 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:07,197 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:07,201 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:40:07,201 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:40:07,209 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:40:07,245 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2023-02-13 03:40:07,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:07,246 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:07,247 INFO L229 MonitoredProcess]: Starting monitored process 39 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:07,249 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2023-02-13 03:40:07,249 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:07,257 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:07,258 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:40:07,258 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:07,258 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:07,259 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:07,260 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:40:07,260 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:40:07,263 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:40:07,310 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2023-02-13 03:40:07,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:07,310 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:07,311 INFO L229 MonitoredProcess]: Starting monitored process 40 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:07,314 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:07,314 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2023-02-13 03:40:07,322 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:07,323 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:40:07,323 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:07,323 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:07,324 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:07,324 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:40:07,324 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:40:07,327 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:40:07,363 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2023-02-13 03:40:07,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:07,364 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:07,365 INFO L229 MonitoredProcess]: Starting monitored process 41 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:07,367 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2023-02-13 03:40:07,367 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:07,376 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:07,377 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:07,377 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:07,377 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:07,380 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:40:07,380 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:40:07,384 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:40:07,408 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2023-02-13 03:40:07,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:07,409 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:07,411 INFO L229 MonitoredProcess]: Starting monitored process 42 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:07,413 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2023-02-13 03:40:07,413 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:07,422 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:07,423 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:40:07,423 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:07,423 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:07,423 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:07,425 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:40:07,425 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:40:07,430 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-13 03:40:07,434 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-02-13 03:40:07,434 INFO L444 ModelExtractionUtils]: 2 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-13 03:40:07,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:07,435 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:07,437 INFO L229 MonitoredProcess]: Starting monitored process 43 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:07,439 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-13 03:40:07,439 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2023-02-13 03:40:07,439 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-13 03:40:07,440 INFO L513 LassoAnalysis]: Proved termination. [2023-02-13 03:40:07,440 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2023-02-13 03:40:07,463 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2023-02-13 03:40:07,464 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-13 03:40:07,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:07,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:07,481 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-13 03:40:07,482 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:07,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:07,496 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 9 conjunts are in the unsatisfiable core [2023-02-13 03:40:07,497 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:07,569 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 03:40:07,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:07,620 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 9 conjunts are in the unsatisfiable core [2023-02-13 03:40:07,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:07,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:07,771 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 8 conjunts are in the unsatisfiable core [2023-02-13 03:40:07,774 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:07,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:07,897 WARN L261 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 10 conjunts are in the unsatisfiable core [2023-02-13 03:40:07,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:08,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:08,041 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 9 conjunts are in the unsatisfiable core [2023-02-13 03:40:08,043 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:08,065 INFO L100 LoopCannibalizer]: 7 predicates before loop cannibalization 16 predicates after loop cannibalization [2023-02-13 03:40:08,066 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 16 loop predicates [2023-02-13 03:40:08,066 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 62 states and 147 transitions. cyclomatic complexity: 94 Second operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:08,729 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 62 states and 147 transitions. cyclomatic complexity: 94. Second operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 1200 states and 2433 transitions. Complement of second has 89 states. [2023-02-13 03:40:08,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 16 states 1 stem states 14 non-accepting loop states 1 accepting loop states [2023-02-13 03:40:08,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:08,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 74 transitions. [2023-02-13 03:40:08,731 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 16 states and 74 transitions. Stem has 5 letters. Loop has 6 letters. [2023-02-13 03:40:08,732 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:08,732 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 16 states and 74 transitions. Stem has 11 letters. Loop has 6 letters. [2023-02-13 03:40:08,732 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:08,732 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 16 states and 74 transitions. Stem has 5 letters. Loop has 12 letters. [2023-02-13 03:40:08,733 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:08,734 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1200 states and 2433 transitions. [2023-02-13 03:40:08,744 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2023-02-13 03:40:08,749 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1200 states to 588 states and 1187 transitions. [2023-02-13 03:40:08,749 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 67 [2023-02-13 03:40:08,749 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 123 [2023-02-13 03:40:08,749 INFO L73 IsDeterministic]: Start isDeterministic. Operand 588 states and 1187 transitions. [2023-02-13 03:40:08,749 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-13 03:40:08,749 INFO L220 hiAutomatonCegarLoop]: Abstraction has 588 states and 1187 transitions. [2023-02-13 03:40:08,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states and 1187 transitions. [2023-02-13 03:40:08,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 39. [2023-02-13 03:40:08,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 39 states have (on average 2.41025641025641) internal successors, (94), 38 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:08,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 94 transitions. [2023-02-13 03:40:08,754 INFO L242 hiAutomatonCegarLoop]: Abstraction has 39 states and 94 transitions. [2023-02-13 03:40:08,754 INFO L426 stractBuchiCegarLoop]: Abstraction has 39 states and 94 transitions. [2023-02-13 03:40:08,754 INFO L333 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2023-02-13 03:40:08,754 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 39 states and 94 transitions. [2023-02-13 03:40:08,755 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-02-13 03:40:08,755 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:40:08,755 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:40:08,755 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2023-02-13 03:40:08,755 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-02-13 03:40:08,755 INFO L733 eck$LassoCheckResult]: Stem: 2586#ULTIMATE.startENTRY [74] ULTIMATE.startENTRY-->L17-2: Formula: true InVars {} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_14|, ULTIMATE.start_main_#t~nondet3#1=|v_ULTIMATE.start_main_#t~nondet3#1_6|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_16|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_4|, ULTIMATE.start_main_#t~nondet1#1=|v_ULTIMATE.start_main_#t~nondet1#1_3|, ULTIMATE.start_main_#t~nondet2#1=|v_ULTIMATE.start_main_#t~nondet2#1_6|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_#t~nondet3#1, ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_#t~nondet1#1, ULTIMATE.start_main_#t~nondet2#1, ULTIMATE.start_main_#t~nondet0#1] 2587#L17-2 [47] L17-2-->L20-2: Formula: (and (= (+ (- 1) |v_ULTIMATE.start_main_~x~0#1_8|) |v_ULTIMATE.start_main_~x~0#1_7|) (<= 2 |v_ULTIMATE.start_main_~x~0#1_8|) (= (+ |v_ULTIMATE.start_main_~x~0#1_7| |v_ULTIMATE.start_main_~y~0#1_9|) |v_ULTIMATE.start_main_~y~0#1_8|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_8|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_9|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_7|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_8|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1] 2603#L20-2 [69] L20-2-->L22-2: Formula: (and (> |v_ULTIMATE.start_main_#t~nondet2#1_5| 0) (= |v_ULTIMATE.start_main_~y~0#1_11| (+ (- 1) |v_ULTIMATE.start_main_~y~0#1_12|)) (<= (+ |v_ULTIMATE.start_main_~x~0#1_10| 1) |v_ULTIMATE.start_main_~y~0#1_12|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_10|, ULTIMATE.start_main_#t~nondet2#1=|v_ULTIMATE.start_main_#t~nondet2#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_12|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_10|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_11|} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_#t~nondet2#1] 2594#L22-2 [73] L22-2-->L22-2: Formula: (and (<= (+ |v_ULTIMATE.start_main_~x~0#1_13| 3) |v_ULTIMATE.start_main_~y~0#1_15|) (= (+ (- 2) |v_ULTIMATE.start_main_~y~0#1_15|) |v_ULTIMATE.start_main_~y~0#1_14|) (< |v_ULTIMATE.start_main_#t~nondet3#1_5| 0) (= |v_ULTIMATE.start_main_~x~0#1_12| (+ |v_ULTIMATE.start_main_~x~0#1_13| 1))) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_13|, ULTIMATE.start_main_#t~nondet3#1=|v_ULTIMATE.start_main_#t~nondet3#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_15|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_12|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_14|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_#t~nondet3#1, ULTIMATE.start_main_~y~0#1] 2596#L22-2 [71] L22-2-->L22-3: Formula: (> (+ |v_ULTIMATE.start_main_~x~0#1_11| 3) |v_ULTIMATE.start_main_~y~0#1_13|) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_11|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_13|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_11|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_13|} AuxVars[] AssignedVars[] 2619#L22-3 [53] L22-3-->L20-2: Formula: (= |v_ULTIMATE.start_main_~y~0#1_1| (+ (- 1) |v_ULTIMATE.start_main_~y~0#1_2|)) InVars {ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_2|} OutVars{ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0#1] 2583#L20-2 [2023-02-13 03:40:08,756 INFO L735 eck$LassoCheckResult]: Loop: 2583#L20-2 [66] L20-2-->L20-3: Formula: (> (+ |v_ULTIMATE.start_main_~x~0#1_9| 1) |v_ULTIMATE.start_main_~y~0#1_10|) InVars {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_10|} 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_10|} AuxVars[] AssignedVars[] 2588#L20-3 [52] L20-3-->L17-2: Formula: (and (= |v_ULTIMATE.start_main_~x~0#1_4| (+ (- 1) |v_ULTIMATE.start_main_~x~0#1_5|)) (= (+ (* (- 1) |v_ULTIMATE.start_main_~x~0#1_4|) |v_ULTIMATE.start_main_~y~0#1_7|) |v_ULTIMATE.start_main_~y~0#1_6|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_7|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_4|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_6|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1] 2582#L17-2 [47] L17-2-->L20-2: Formula: (and (= (+ (- 1) |v_ULTIMATE.start_main_~x~0#1_8|) |v_ULTIMATE.start_main_~x~0#1_7|) (<= 2 |v_ULTIMATE.start_main_~x~0#1_8|) (= (+ |v_ULTIMATE.start_main_~x~0#1_7| |v_ULTIMATE.start_main_~y~0#1_9|) |v_ULTIMATE.start_main_~y~0#1_8|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_8|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_9|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_7|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_8|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1] 2583#L20-2 [2023-02-13 03:40:08,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:08,756 INFO L85 PathProgramCache]: Analyzing trace with hash -1243372968, now seen corresponding path program 1 times [2023-02-13 03:40:08,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:08,756 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566553440] [2023-02-13 03:40:08,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:08,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:08,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:08,759 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:08,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:08,762 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:08,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:08,762 INFO L85 PathProgramCache]: Analyzing trace with hash 94876, now seen corresponding path program 2 times [2023-02-13 03:40:08,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:08,762 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041501284] [2023-02-13 03:40:08,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:08,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:08,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:08,765 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:08,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:08,766 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:08,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:08,766 INFO L85 PathProgramCache]: Analyzing trace with hash -1526063899, now seen corresponding path program 1 times [2023-02-13 03:40:08,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:08,767 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763304321] [2023-02-13 03:40:08,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:08,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:08,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:08,770 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:08,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:08,774 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:08,785 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:08,785 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:08,785 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:08,785 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:08,786 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-13 03:40:08,786 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:08,786 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:08,786 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:08,786 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration6_Loop [2023-02-13 03:40:08,786 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:08,786 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:08,786 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:08,787 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:08,788 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:08,804 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:08,805 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-13 03:40:08,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:08,805 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:08,805 INFO L229 MonitoredProcess]: Starting monitored process 44 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:08,807 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2023-02-13 03:40:08,807 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:08,808 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:08,817 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:08,817 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_11=1} Honda state: {v_rep~unnamed0~0~true_11=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:08,836 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2023-02-13 03:40:08,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:08,837 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:08,838 INFO L229 MonitoredProcess]: Starting monitored process 45 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:08,840 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2023-02-13 03:40:08,840 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:08,840 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:08,858 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:08,858 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_11=0} Honda state: {v_rep~unnamed0~0~false_11=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:08,884 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (45)] Ended with exit code 0 [2023-02-13 03:40:08,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:08,885 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:08,886 INFO L229 MonitoredProcess]: Starting monitored process 46 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:08,888 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:08,888 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:08,888 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2023-02-13 03:40:08,932 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2023-02-13 03:40:08,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:08,932 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:08,934 INFO L229 MonitoredProcess]: Starting monitored process 47 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:08,935 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2023-02-13 03:40:08,936 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-13 03:40:08,936 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:09,031 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-13 03:40:09,033 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2023-02-13 03:40:09,033 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:09,033 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:09,033 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:09,033 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:09,034 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-13 03:40:09,034 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:09,034 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:09,034 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:09,034 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration6_Loop [2023-02-13 03:40:09,034 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:09,034 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:09,034 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:09,037 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:09,045 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:09,089 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:09,090 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-13 03:40:09,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:09,091 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:09,092 INFO L229 MonitoredProcess]: Starting monitored process 48 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:09,095 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2023-02-13 03:40:09,096 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:09,106 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:09,106 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:09,106 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:09,107 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:09,109 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:40:09,109 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:40:09,116 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:40:09,164 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Ended with exit code 0 [2023-02-13 03:40:09,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:09,164 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:09,165 INFO L229 MonitoredProcess]: Starting monitored process 49 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:09,168 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:09,168 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2023-02-13 03:40:09,174 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:09,174 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:40:09,174 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:09,175 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:09,175 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:09,176 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:40:09,176 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:40:09,180 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-13 03:40:09,185 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-13 03:40:09,186 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-13 03:40:09,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:09,187 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:09,188 INFO L229 MonitoredProcess]: Starting monitored process 50 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:09,191 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2023-02-13 03:40:09,191 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-13 03:40:09,192 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-13 03:40:09,192 INFO L513 LassoAnalysis]: Proved termination. [2023-02-13 03:40:09,192 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2023-02-13 03:40:09,223 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Ended with exit code 0 [2023-02-13 03:40:09,224 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-13 03:40:09,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:09,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:09,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-13 03:40:09,250 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:09,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:09,267 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-13 03:40:09,268 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:09,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 03:40:09,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:09,290 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-13 03:40:09,291 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:09,313 INFO L100 LoopCannibalizer]: 2 predicates before loop cannibalization 3 predicates after loop cannibalization [2023-02-13 03:40:09,314 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2023-02-13 03:40:09,314 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 39 states and 94 transitions. cyclomatic complexity: 62 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:09,379 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 39 states and 94 transitions. cyclomatic complexity: 62. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 102 states and 256 transitions. Complement of second has 8 states. [2023-02-13 03:40:09,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-02-13 03:40:09,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:09,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 26 transitions. [2023-02-13 03:40:09,382 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 6 letters. Loop has 3 letters. [2023-02-13 03:40:09,383 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:09,383 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 9 letters. Loop has 3 letters. [2023-02-13 03:40:09,383 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:09,383 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 6 letters. Loop has 6 letters. [2023-02-13 03:40:09,384 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:09,385 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 102 states and 256 transitions. [2023-02-13 03:40:09,387 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-13 03:40:09,388 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 102 states to 0 states and 0 transitions. [2023-02-13 03:40:09,388 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-02-13 03:40:09,388 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-02-13 03:40:09,388 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-02-13 03:40:09,388 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-13 03:40:09,389 INFO L220 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-13 03:40:09,389 INFO L242 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-13 03:40:09,389 INFO L426 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-13 03:40:09,389 INFO L333 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2023-02-13 03:40:09,389 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-02-13 03:40:09,389 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-13 03:40:09,390 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-02-13 03:40:09,399 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.02 03:40:09 BasicIcfg [2023-02-13 03:40:09,399 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-02-13 03:40:09,400 INFO L158 Benchmark]: Toolchain (without parser) took 7492.03ms. Allocated memory was 2.1GB in the beginning and 2.6GB in the end (delta: 461.4MB). Free memory was 2.1GB in the beginning and 2.2GB in the end (delta: -65.4MB). Peak memory consumption was 396.6MB. Max. memory is 42.9GB. [2023-02-13 03:40:09,400 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 2.1GB. Free memory is still 2.1GB. There was no memory consumed. Max. memory is 42.9GB. [2023-02-13 03:40:09,401 INFO L158 Benchmark]: CACSL2BoogieTranslator took 150.68ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 10.1MB). There was no memory consumed. Max. memory is 42.9GB. [2023-02-13 03:40:09,401 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.89ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 42.9GB. [2023-02-13 03:40:09,401 INFO L158 Benchmark]: Boogie Preprocessor took 11.36ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 1.1MB). Peak memory consumption was 16.8MB. Max. memory is 42.9GB. [2023-02-13 03:40:09,402 INFO L158 Benchmark]: RCFGBuilder took 242.66ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 10.2MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. [2023-02-13 03:40:09,402 INFO L158 Benchmark]: BlockEncodingV2 took 54.42ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 5.2MB). There was no memory consumed. Max. memory is 42.9GB. [2023-02-13 03:40:09,402 INFO L158 Benchmark]: TraceAbstraction took 13.01ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 42.9GB. [2023-02-13 03:40:09,403 INFO L158 Benchmark]: BuchiAutomizer took 6978.04ms. Allocated memory was 2.1GB in the beginning and 2.6GB in the end (delta: 461.4MB). Free memory was 2.1GB in the beginning and 2.2GB in the end (delta: -97.4MB). Peak memory consumption was 363.0MB. Max. memory is 42.9GB. [2023-02-13 03:40:09,404 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 11 locations, 16 edges - StatisticsResult: Encoded RCFG 6 locations, 12 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 2.1GB. Free memory is still 2.1GB. There was no memory consumed. Max. memory is 42.9GB. * CACSL2BoogieTranslator took 150.68ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 10.1MB). There was no memory consumed. Max. memory is 42.9GB. * Boogie Procedure Inliner took 35.89ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 42.9GB. * Boogie Preprocessor took 11.36ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 1.1MB). Peak memory consumption was 16.8MB. Max. memory is 42.9GB. * RCFGBuilder took 242.66ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 10.2MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. * BlockEncodingV2 took 54.42ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 5.2MB). There was no memory consumed. Max. memory is 42.9GB. * TraceAbstraction took 13.01ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 42.9GB. * BuchiAutomizer took 6978.04ms. Allocated memory was 2.1GB in the beginning and 2.6GB in the end (delta: 461.4MB). Free memory was 2.1GB in the beginning and 2.2GB in the end (delta: -97.4MB). Peak memory consumption was 363.0MB. Max. memory is 42.9GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (0 trivial, 0 deterministic, 6 nondeterministic). One nondeterministic module has affine ranking function x and consists of 4 locations. One nondeterministic module has affine ranking function y + -1 * x and consists of 4 locations. One nondeterministic module has affine ranking function y + -1 * x and consists of 4 locations. One nondeterministic module has affine ranking function y and consists of 16 locations. One nondeterministic module has affine ranking function y and consists of 16 locations. One nondeterministic module has affine ranking function x and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 6.9s and 7 iterations. TraceHistogramMax:1. Analysis of lassos took 3.6s. Construction of modules took 0.5s. Büchi inclusion checks took 2.5s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 775 StatesRemovedByMinimization, 5 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 [6, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 2/2 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 186 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 180 mSDsluCounter, 27 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 133 mSDsCounter, 141 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 720 IncrementalHoareTripleChecker+Invalid, 861 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 141 mSolverCounterUnsat, 20 mSDtfsCounter, 720 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT6 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital25 mio100 ax150 hnf100 lsp55 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq163 hnf95 smp92 dnf100 smp100 tf107 neg100 sie103 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 25ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 13 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 6 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.1s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-02-13 03:40:09,440 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Ended with exit code 0 [2023-02-13 03:40:09,625 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2023-02-13 03:40:09,848 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...