NO This is Ultimate 0.2.2-dev-e7f90c1-m [2023-02-13 03:41:00,883 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-13 03:41:00,884 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-13 03:41:00,899 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-13 03:41:00,900 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-13 03:41:00,900 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-13 03:41:00,901 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-13 03:41:00,902 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-13 03:41:00,903 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-13 03:41:00,903 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-13 03:41:00,904 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-13 03:41:00,905 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-13 03:41:00,905 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-13 03:41:00,905 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-13 03:41:00,906 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-13 03:41:00,906 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-13 03:41:00,907 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-13 03:41:00,907 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-13 03:41:00,908 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-13 03:41:00,909 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-13 03:41:00,910 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2023-02-13 03:41:00,911 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-13 03:41:00,911 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-13 03:41:00,912 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-13 03:41:00,912 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-13 03:41:00,914 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-13 03:41:00,914 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-13 03:41:00,914 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-13 03:41:00,915 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-13 03:41:00,915 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-13 03:41:00,915 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-13 03:41:00,916 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-13 03:41:00,916 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-13 03:41:00,916 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-13 03:41:00,917 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-13 03:41:00,917 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-13 03:41:00,917 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-13 03:41:00,918 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-13 03:41:00,918 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-13 03:41:00,918 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-13 03:41:00,919 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-13 03:41:00,919 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-13 03:41:00,920 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/Ultimate/./../termcomp2017.epf [2023-02-13 03:41:00,930 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-13 03:41:00,930 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-13 03:41:00,931 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-13 03:41:00,931 INFO L138 SettingsManager]: * Rewrite not-equals=true [2023-02-13 03:41:00,931 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-13 03:41:00,932 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2023-02-13 03:41:00,932 INFO L138 SettingsManager]: * Use SBE=true [2023-02-13 03:41:00,932 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-02-13 03:41:00,932 INFO L138 SettingsManager]: * Use old map elimination=false [2023-02-13 03:41:00,932 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2023-02-13 03:41:00,932 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2023-02-13 03:41:00,932 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2023-02-13 03:41:00,932 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-02-13 03:41:00,932 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2023-02-13 03:41:00,932 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:00,933 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-13 03:41:00,933 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-13 03:41:00,933 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-13 03:41:00,933 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-13 03:41:00,933 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-02-13 03:41:00,933 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2023-02-13 03:41:00,933 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-13 03:41:00,933 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-13 03:41:00,933 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2023-02-13 03:41:00,934 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2023-02-13 03:41:00,934 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-13 03:41:00,934 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-13 03:41:00,934 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-13 03:41:00,934 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/export/starexec/sandbox/solver/Ultimate/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-02-13 03:41:01,063 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-13 03:41:01,075 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-13 03:41:01,076 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-13 03:41:01,077 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-13 03:41:01,080 INFO L275 PluginConnector]: CDTParser initialized [2023-02-13 03:41:01,081 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2023-02-13 03:41:01,123 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/8591c32bfbdc49928fca1451d4e602ce/FLAG95eb1d022 [2023-02-13 03:41:01,464 INFO L306 CDTParser]: Found 1 translation units. [2023-02-13 03:41:01,464 INFO L160 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2023-02-13 03:41:01,469 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/8591c32bfbdc49928fca1451d4e602ce/FLAG95eb1d022 [2023-02-13 03:41:01,919 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/8591c32bfbdc49928fca1451d4e602ce [2023-02-13 03:41:01,923 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-13 03:41:01,924 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2023-02-13 03:41:01,926 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-13 03:41:01,926 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-13 03:41:01,930 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-13 03:41:01,930 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.02 03:41:01" (1/1) ... [2023-02-13 03:41:01,931 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67bb9c32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:01, skipping insertion in model container [2023-02-13 03:41:01,931 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.02 03:41:01" (1/1) ... [2023-02-13 03:41:01,945 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-13 03:41:01,960 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-13 03:41:02,055 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-13 03:41:02,057 INFO L203 MainTranslator]: Completed pre-run [2023-02-13 03:41:02,063 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-13 03:41:02,070 INFO L208 MainTranslator]: Completed translation [2023-02-13 03:41:02,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:02 WrapperNode [2023-02-13 03:41:02,070 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-13 03:41:02,071 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-13 03:41:02,071 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-13 03:41:02,071 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-13 03:41:02,075 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:02" (1/1) ... [2023-02-13 03:41:02,077 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:02" (1/1) ... [2023-02-13 03:41:02,086 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 18 [2023-02-13 03:41:02,086 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-13 03:41:02,086 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-13 03:41:02,086 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-13 03:41:02,086 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-13 03:41:02,091 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:02" (1/1) ... [2023-02-13 03:41:02,091 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:02" (1/1) ... [2023-02-13 03:41:02,091 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:02" (1/1) ... [2023-02-13 03:41:02,091 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:02" (1/1) ... [2023-02-13 03:41:02,092 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:02" (1/1) ... [2023-02-13 03:41:02,094 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:02" (1/1) ... [2023-02-13 03:41:02,094 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:02" (1/1) ... [2023-02-13 03:41:02,095 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-13 03:41:02,095 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-13 03:41:02,095 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-13 03:41:02,095 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-13 03:41:02,096 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:02" (1/1) ... [2023-02-13 03:41:02,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2023-02-13 03:41:02,107 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:02,114 INFO L229 MonitoredProcess]: Starting monitored process 1 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) [2023-02-13 03:41:02,121 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (1)] Waiting until timeout for monitored process [2023-02-13 03:41:02,148 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-13 03:41:02,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-13 03:41:02,201 INFO L234 CfgBuilder]: Building ICFG [2023-02-13 03:41:02,203 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-13 03:41:02,290 INFO L275 CfgBuilder]: Performing block encoding [2023-02-13 03:41:02,298 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-13 03:41:02,298 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-13 03:41:02,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:41:02 BoogieIcfgContainer [2023-02-13 03:41:02,300 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-13 03:41:02,301 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2023-02-13 03:41:02,301 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2023-02-13 03:41:02,304 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2023-02-13 03:41:02,305 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:41:02" (1/1) ... [2023-02-13 03:41:02,315 INFO L313 BlockEncoder]: Initial Icfg 10 locations, 14 edges [2023-02-13 03:41:02,315 INFO L258 BlockEncoder]: Using Remove infeasible edges [2023-02-13 03:41:02,316 INFO L263 BlockEncoder]: Using Maximize final states [2023-02-13 03:41:02,316 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2023-02-13 03:41:02,316 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2023-02-13 03:41:02,317 INFO L296 BlockEncoder]: Using Remove sink states [2023-02-13 03:41:02,317 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2023-02-13 03:41:02,317 INFO L179 BlockEncoder]: Using Rewrite not-equals [2023-02-13 03:41:02,324 INFO L185 BlockEncoder]: Using Use SBE [2023-02-13 03:41:02,330 INFO L200 BlockEncoder]: SBE split 2 edges [2023-02-13 03:41:02,332 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2023-02-13 03:41:02,333 INFO L71 MaximizeFinalStates]: 0 new accepting states [2023-02-13 03:41:02,340 INFO L101 BaseMinimizeStates]: Removed 8 edges and 4 locations by large block encoding [2023-02-13 03:41:02,341 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2023-02-13 03:41:02,342 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2023-02-13 03:41:02,343 INFO L71 MaximizeFinalStates]: 0 new accepting states [2023-02-13 03:41:02,343 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2023-02-13 03:41:02,343 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2023-02-13 03:41:02,343 INFO L313 BlockEncoder]: Encoded RCFG 5 locations, 10 edges [2023-02-13 03:41:02,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 13.02 03:41:02 BasicIcfg [2023-02-13 03:41:02,343 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2023-02-13 03:41:02,344 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-13 03:41:02,345 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-13 03:41:02,347 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-13 03:41:02,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.02 03:41:01" (1/4) ... [2023-02-13 03:41:02,347 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27d6b4d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.02 03:41:02, skipping insertion in model container [2023-02-13 03:41:02,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:02" (2/4) ... [2023-02-13 03:41:02,348 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27d6b4d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.02 03:41:02, skipping insertion in model container [2023-02-13 03:41:02,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:41:02" (3/4) ... [2023-02-13 03:41:02,348 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27d6b4d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.02 03:41:02, skipping insertion in model container [2023-02-13 03:41:02,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 13.02 03:41:02" (4/4) ... [2023-02-13 03:41:02,349 INFO L111 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2023-02-13 03:41:02,359 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2023-02-13 03:41:02,359 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 0 error locations. [2023-02-13 03:41:02,359 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27d6b4d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.02 03:41:02, skipping insertion in model container [2023-02-13 03:41:02,360 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-13 03:41:02,360 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-02-13 03:41:02,360 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2023-02-13 03:41:02,362 INFO L275 PluginConnector]: BuchiAutomizer initialized [2023-02-13 03:41:02,362 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:41:02,363 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.02 03:41:01" (1/4) ... [2023-02-13 03:41:02,363 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@28980657 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.02 03:41:02, skipping insertion in model container [2023-02-13 03:41:02,363 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:41:02,363 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:02" (2/4) ... [2023-02-13 03:41:02,363 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@28980657 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.02 03:41:02, skipping insertion in model container [2023-02-13 03:41:02,363 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:41:02,364 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:41:02" (3/4) ... [2023-02-13 03:41:02,364 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@28980657 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.02 03:41:02, skipping insertion in model container [2023-02-13 03:41:02,364 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:41:02,364 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 13.02 03:41:02" (4/4) ... [2023-02-13 03:41:02,365 INFO L322 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2023-02-13 03:41:02,392 INFO L301 stractBuchiCegarLoop]: Interprodecural is true [2023-02-13 03:41:02,392 INFO L302 stractBuchiCegarLoop]: Hoare is true [2023-02-13 03:41:02,392 INFO L303 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-02-13 03:41:02,392 INFO L304 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-02-13 03:41:02,392 INFO L305 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-02-13 03:41:02,392 INFO L306 stractBuchiCegarLoop]: Difference is false [2023-02-13 03:41:02,392 INFO L307 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-02-13 03:41:02,392 INFO L311 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-02-13 03:41:02,395 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:41:02,404 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-13 03:41:02,404 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:41:02,404 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:41:02,408 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2023-02-13 03:41:02,408 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-13 03:41:02,408 INFO L333 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-02-13 03:41:02,408 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:41:02,408 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-13 03:41:02,408 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:41:02,409 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:41:02,409 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2023-02-13 03:41:02,409 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-13 03:41:02,411 INFO L733 eck$LassoCheckResult]: Stem: 2#ULTIMATE.startENTRYtrue [58] ULTIMATE.startENTRY-->L10-1: Formula: true InVars {} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_16|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_4|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_#t~nondet0#1] 4#L10-1true [2023-02-13 03:41:02,412 INFO L735 eck$LassoCheckResult]: Loop: 4#L10-1true [54] L10-1-->L10: Formula: (> |v_ULTIMATE.start_main_~i~0#1_5| 0) InVars {ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_5|} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_5|} AuxVars[] AssignedVars[] 3#L10true [56] L10-->L10-1: Formula: (and (> |v_ULTIMATE.start_main_~i~0#1_15| 35) (= |v_ULTIMATE.start_main_~i~0#1_14| 0)) InVars {ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_15|} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_14|} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0#1] 4#L10-1true [2023-02-13 03:41:02,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:02,415 INFO L85 PathProgramCache]: Analyzing trace with hash 89, now seen corresponding path program 1 times [2023-02-13 03:41:02,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:41:02,421 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19788561] [2023-02-13 03:41:02,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:41:02,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:41:02,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:02,465 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:41:02,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:02,475 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:41:02,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:02,477 INFO L85 PathProgramCache]: Analyzing trace with hash 2691, now seen corresponding path program 1 times [2023-02-13 03:41:02,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:41:02,477 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905442167] [2023-02-13 03:41:02,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:41:02,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:41:02,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:02,480 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:41:02,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:02,483 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:41:02,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:02,484 INFO L85 PathProgramCache]: Analyzing trace with hash 87259, now seen corresponding path program 1 times [2023-02-13 03:41:02,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:41:02,484 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271876835] [2023-02-13 03:41:02,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:41:02,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:41:02,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:02,487 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:41:02,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:02,489 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:41:02,546 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:41:02,547 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:41:02,547 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:41:02,547 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:41:02,548 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-13 03:41:02,548 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:02,548 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:41:02,548 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:41:02,548 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2023-02-13 03:41:02,548 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:41:02,549 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:41:02,559 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:41:02,565 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:41:02,569 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:41:02,593 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:41:02,593 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-13 03:41:02,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:02,595 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:02,596 INFO L229 MonitoredProcess]: Starting monitored process 2 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:41:02,597 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-02-13 03:41:02,597 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:41:02,597 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:41:02,608 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:41:02,608 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:41:02,626 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-02-13 03:41:02,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:02,626 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:02,627 INFO L229 MonitoredProcess]: Starting monitored process 3 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:41:02,628 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-02-13 03:41:02,629 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:41:02,629 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:41:02,637 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:41:02,637 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:41:02,652 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 03:41:02,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:02,653 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:02,655 INFO L229 MonitoredProcess]: Starting monitored process 4 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:41:02,658 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-02-13 03:41:02,658 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:41:02,658 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:41:02,680 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2023-02-13 03:41:02,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:02,681 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:02,683 INFO L229 MonitoredProcess]: Starting monitored process 5 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:41:02,684 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-02-13 03:41:02,685 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-13 03:41:02,685 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:41:02,710 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-13 03:41:02,714 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2023-02-13 03:41:02,714 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:41:02,714 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:41:02,714 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:41:02,714 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:41:02,714 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-13 03:41:02,715 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:02,715 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:41:02,715 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:41:02,715 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2023-02-13 03:41:02,715 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:41:02,715 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:41:02,716 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:41:02,719 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:41:02,724 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:41:02,747 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:41:02,750 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-13 03:41:02,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:02,751 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:02,751 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 03:41:02,754 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 03:41:02,756 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:41:02,761 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:41:02,761 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:41:02,761 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:41:02,761 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:41:02,765 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:41:02,765 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:41:02,769 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:41:02,783 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 03:41:02,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:02,783 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:02,784 INFO L229 MonitoredProcess]: Starting monitored process 7 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:41:02,787 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-02-13 03:41:02,787 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:41:02,791 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:41:02,792 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:41:02,792 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:41:02,792 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:41:02,794 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:41:02,794 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:41:02,800 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:41:02,815 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2023-02-13 03:41:02,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:02,816 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:02,817 INFO L229 MonitoredProcess]: Starting monitored process 8 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:41:02,824 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-02-13 03:41:02,827 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:41:02,832 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:41:02,832 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:41:02,833 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:41:02,833 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:41:02,833 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:41:02,834 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:41:02,834 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:41:02,838 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-13 03:41:02,842 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-13 03:41:02,843 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-13 03:41:02,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:02,845 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:02,866 INFO L229 MonitoredProcess]: Starting monitored process 9 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:41:02,875 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-02-13 03:41:02,875 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-13 03:41:02,875 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-13 03:41:02,875 INFO L513 LassoAnalysis]: Proved termination. [2023-02-13 03:41:02,876 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2023-02-13 03:41:02,892 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2023-02-13 03:41:02,895 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-13 03:41:02,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:02,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:41:02,913 WARN L261 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-13 03:41:02,914 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:41:02,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:41:02,918 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-13 03:41:02,919 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:41:02,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 03:41:02,938 INFO L100 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization [2023-02-13 03:41:02,941 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-02-13 03:41:02,942 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:41:02,972 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 16 states and 34 transitions. Complement of second has 4 states. [2023-02-13 03:41:02,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-02-13 03:41:02,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:41:02,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 19 transitions. [2023-02-13 03:41:02,978 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 19 transitions. Stem has 1 letters. Loop has 2 letters. [2023-02-13 03:41:02,979 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:41:02,979 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 19 transitions. Stem has 3 letters. Loop has 2 letters. [2023-02-13 03:41:02,979 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:41:02,979 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 19 transitions. Stem has 1 letters. Loop has 4 letters. [2023-02-13 03:41:02,979 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:41:02,982 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 34 transitions. [2023-02-13 03:41:02,983 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2023-02-13 03:41:02,985 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 16 states and 34 transitions. [2023-02-13 03:41:02,986 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2023-02-13 03:41:02,986 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2023-02-13 03:41:02,986 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 34 transitions. [2023-02-13 03:41:02,986 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-13 03:41:02,986 INFO L220 hiAutomatonCegarLoop]: Abstraction has 16 states and 34 transitions. [2023-02-13 03:41:03,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 34 transitions. [2023-02-13 03:41:03,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2023-02-13 03:41:03,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 14 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:41:03,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 32 transitions. [2023-02-13 03:41:03,008 INFO L242 hiAutomatonCegarLoop]: Abstraction has 15 states and 32 transitions. [2023-02-13 03:41:03,008 INFO L426 stractBuchiCegarLoop]: Abstraction has 15 states and 32 transitions. [2023-02-13 03:41:03,008 INFO L333 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-02-13 03:41:03,008 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 32 transitions. [2023-02-13 03:41:03,009 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2023-02-13 03:41:03,009 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:41:03,009 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:41:03,009 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-13 03:41:03,009 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-02-13 03:41:03,010 INFO L733 eck$LassoCheckResult]: Stem: 51#ULTIMATE.startENTRY [58] ULTIMATE.startENTRY-->L10-1: Formula: true InVars {} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_16|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_4|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_#t~nondet0#1] 52#L10-1 [55] L10-1-->L10: Formula: (< |v_ULTIMATE.start_main_~i~0#1_5| 0) InVars {ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_5|} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_5|} AuxVars[] AssignedVars[] 53#L10 [2023-02-13 03:41:03,010 INFO L735 eck$LassoCheckResult]: Loop: 53#L10 [37] L10-->L11: Formula: (and (<= 0 (+ 5 |v_ULTIMATE.start_main_~i~0#1_6|)) (<= |v_ULTIMATE.start_main_~i~0#1_6| 35)) InVars {ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_6|} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_6|} AuxVars[] AssignedVars[] 54#L11 [52] L11-->L14: Formula: (>= |v_ULTIMATE.start_main_~i~0#1_9| 0) InVars {ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_9|} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_9|} AuxVars[] AssignedVars[] 65#L14 [53] L14-->L10-1: Formula: (and (>= 30 |v_ULTIMATE.start_main_~i~0#1_13|) (= |v_ULTIMATE.start_main_~i~0#1_12| (+ |v_ULTIMATE.start_main_~i~0#1_13| (- 1)))) InVars {ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_13|} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_12|} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0#1] 59#L10-1 [54] L10-1-->L10: Formula: (> |v_ULTIMATE.start_main_~i~0#1_5| 0) InVars {ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_5|} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_5|} AuxVars[] AssignedVars[] 53#L10 [2023-02-13 03:41:03,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:03,010 INFO L85 PathProgramCache]: Analyzing trace with hash 2814, now seen corresponding path program 1 times [2023-02-13 03:41:03,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:41:03,010 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041457494] [2023-02-13 03:41:03,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:41:03,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:41:03,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:03,013 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:41:03,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:03,014 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:41:03,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:03,014 INFO L85 PathProgramCache]: Analyzing trace with hash 2077457, now seen corresponding path program 1 times [2023-02-13 03:41:03,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:41:03,015 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490945750] [2023-02-13 03:41:03,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:41:03,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:41:03,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:03,020 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:41:03,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:03,022 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:41:03,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:03,022 INFO L85 PathProgramCache]: Analyzing trace with hash -1695025266, now seen corresponding path program 1 times [2023-02-13 03:41:03,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:41:03,023 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030629034] [2023-02-13 03:41:03,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:41:03,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:41:03,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:41:03,040 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 03:41:03,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-13 03:41:03,040 INFO L335 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030629034] [2023-02-13 03:41:03,041 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030629034] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-13 03:41:03,041 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-13 03:41:03,041 ERROR L191 FreeRefinementEngine]: {71#true} [71#true, 73#(<= (+ |ULTIMATE.start_main_~i~0#1| 1) 0), 73#(<= (+ |ULTIMATE.start_main_~i~0#1| 1) 0), 72#false, 72#false] {72#false} [2023-02-13 03:41:03,041 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-13 03:41:03,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84558977] [2023-02-13 03:41:03,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-13 03:41:03,057 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:41:03,057 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:41:03,057 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:41:03,057 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:41:03,057 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-13 03:41:03,057 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:03,057 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:41:03,057 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:41:03,057 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2023-02-13 03:41:03,058 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:41:03,058 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:41:03,058 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:41:03,060 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:41:03,063 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:41:03,095 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:41:03,095 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-13 03:41:03,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:03,095 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:03,096 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 03:41:03,097 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 03:41:03,098 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:41:03,098 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:41:03,106 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:41:03,106 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:41:03,131 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2023-02-13 03:41:03,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:03,132 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:03,133 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 03:41:03,135 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 03:41:03,135 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:41:03,136 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:41:03,149 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:41:03,150 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:41:03,180 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-02-13 03:41:03,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:03,181 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:03,182 INFO L229 MonitoredProcess]: Starting monitored process 12 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:41:03,184 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-02-13 03:41:03,185 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:41:03,185 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:41:03,230 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2023-02-13 03:41:03,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:03,231 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:03,232 INFO L229 MonitoredProcess]: Starting monitored process 13 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:41:03,233 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-02-13 03:41:03,234 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-13 03:41:03,234 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:41:03,290 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-13 03:41:03,292 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2023-02-13 03:41:03,292 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:41:03,292 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:41:03,293 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:41:03,293 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:41:03,293 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-13 03:41:03,293 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:03,293 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:41:03,293 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:41:03,293 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2023-02-13 03:41:03,293 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:41:03,293 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:41:03,294 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:41:03,298 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:41:03,318 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:41:03,361 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:41:03,362 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-13 03:41:03,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:03,362 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:03,363 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 03:41:03,365 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 03:41:03,366 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:41:03,371 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:41:03,371 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:41:03,371 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:41:03,371 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:41:03,373 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:41:03,374 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:41:03,376 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:41:03,391 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2023-02-13 03:41:03,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:03,391 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:03,392 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 03:41:03,394 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 03:41:03,395 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:41:03,399 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:41:03,399 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:41:03,400 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:41:03,400 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:41:03,400 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:41:03,402 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:41:03,403 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:41:03,405 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-13 03:41:03,409 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-13 03:41:03,409 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-13 03:41:03,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:03,410 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:03,411 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 03:41:03,413 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 03:41:03,413 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-13 03:41:03,414 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-13 03:41:03,414 INFO L513 LassoAnalysis]: Proved termination. [2023-02-13 03:41:03,414 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2023-02-13 03:41:03,435 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 03:41:03,436 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-13 03:41:03,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:03,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:41:03,459 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-13 03:41:03,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:41:03,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:41:03,469 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-13 03:41:03,470 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:41:03,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 03:41:03,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:41:03,528 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-13 03:41:03,529 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:41:03,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:41:03,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-13 03:41:03,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:41:03,572 INFO L100 LoopCannibalizer]: 2 predicates before loop cannibalization 3 predicates after loop cannibalization [2023-02-13 03:41:03,573 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2023-02-13 03:41:03,573 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 15 states and 32 transitions. cyclomatic complexity: 20 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 03:41:03,637 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 15 states and 32 transitions. cyclomatic complexity: 20. 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 148 states and 269 transitions. Complement of second has 40 states. [2023-02-13 03:41:03,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 1 stem states 4 non-accepting loop states 2 accepting loop states [2023-02-13 03:41:03,640 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 03:41:03,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 53 transitions. [2023-02-13 03:41:03,641 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 53 transitions. Stem has 2 letters. Loop has 4 letters. [2023-02-13 03:41:03,641 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:41:03,641 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 53 transitions. Stem has 6 letters. Loop has 4 letters. [2023-02-13 03:41:03,641 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:41:03,641 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 53 transitions. Stem has 2 letters. Loop has 8 letters. [2023-02-13 03:41:03,641 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:41:03,642 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 148 states and 269 transitions. [2023-02-13 03:41:03,645 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 41 [2023-02-13 03:41:03,646 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 148 states to 93 states and 159 transitions. [2023-02-13 03:41:03,646 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 32 [2023-02-13 03:41:03,647 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 50 [2023-02-13 03:41:03,647 INFO L73 IsDeterministic]: Start isDeterministic. Operand 93 states and 159 transitions. [2023-02-13 03:41:03,647 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-13 03:41:03,647 INFO L220 hiAutomatonCegarLoop]: Abstraction has 93 states and 159 transitions. [2023-02-13 03:41:03,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states and 159 transitions. [2023-02-13 03:41:03,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 58. [2023-02-13 03:41:03,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 58 states have (on average 1.8793103448275863) internal successors, (109), 57 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:41:03,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 109 transitions. [2023-02-13 03:41:03,650 INFO L242 hiAutomatonCegarLoop]: Abstraction has 58 states and 109 transitions. [2023-02-13 03:41:03,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-13 03:41:03,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-13 03:41:03,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-13 03:41:03,653 INFO L87 Difference]: Start difference. First operand 58 states and 109 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:41:03,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-13 03:41:03,665 INFO L93 Difference]: Finished difference Result 23 states and 41 transitions. [2023-02-13 03:41:03,665 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 41 transitions. [2023-02-13 03:41:03,665 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 11 [2023-02-13 03:41:03,665 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 19 states and 35 transitions. [2023-02-13 03:41:03,666 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2023-02-13 03:41:03,666 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2023-02-13 03:41:03,666 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 35 transitions. [2023-02-13 03:41:03,666 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-13 03:41:03,666 INFO L220 hiAutomatonCegarLoop]: Abstraction has 19 states and 35 transitions. [2023-02-13 03:41:03,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 35 transitions. [2023-02-13 03:41:03,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2023-02-13 03:41:03,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.8333333333333333) internal successors, (33), 17 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:41:03,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 33 transitions. [2023-02-13 03:41:03,667 INFO L242 hiAutomatonCegarLoop]: Abstraction has 18 states and 33 transitions. [2023-02-13 03:41:03,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-13 03:41:03,668 INFO L426 stractBuchiCegarLoop]: Abstraction has 18 states and 33 transitions. [2023-02-13 03:41:03,668 INFO L333 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-02-13 03:41:03,669 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 33 transitions. [2023-02-13 03:41:03,669 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 11 [2023-02-13 03:41:03,669 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:41:03,669 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:41:03,669 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-13 03:41:03,669 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-02-13 03:41:03,669 INFO L733 eck$LassoCheckResult]: Stem: 395#ULTIMATE.startENTRY [58] ULTIMATE.startENTRY-->L10-1: Formula: true InVars {} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_16|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_4|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_#t~nondet0#1] 396#L10-1 [54] L10-1-->L10: Formula: (> |v_ULTIMATE.start_main_~i~0#1_5| 0) InVars {ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_5|} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_5|} AuxVars[] AssignedVars[] 397#L10 [2023-02-13 03:41:03,670 INFO L735 eck$LassoCheckResult]: Loop: 397#L10 [37] L10-->L11: Formula: (and (<= 0 (+ 5 |v_ULTIMATE.start_main_~i~0#1_6|)) (<= |v_ULTIMATE.start_main_~i~0#1_6| 35)) InVars {ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_6|} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_6|} AuxVars[] AssignedVars[] 398#L11 [52] L11-->L14: Formula: (>= |v_ULTIMATE.start_main_~i~0#1_9| 0) InVars {ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_9|} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_9|} AuxVars[] AssignedVars[] 412#L14 [53] L14-->L10-1: Formula: (and (>= 30 |v_ULTIMATE.start_main_~i~0#1_13|) (= |v_ULTIMATE.start_main_~i~0#1_12| (+ |v_ULTIMATE.start_main_~i~0#1_13| (- 1)))) InVars {ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_13|} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_12|} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0#1] 411#L10-1 [54] L10-1-->L10: Formula: (> |v_ULTIMATE.start_main_~i~0#1_5| 0) InVars {ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_5|} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_5|} AuxVars[] AssignedVars[] 397#L10 [2023-02-13 03:41:03,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:03,670 INFO L85 PathProgramCache]: Analyzing trace with hash 2813, now seen corresponding path program 1 times [2023-02-13 03:41:03,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:41:03,670 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083114909] [2023-02-13 03:41:03,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:41:03,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:41:03,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:03,673 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:41:03,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:03,675 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:41:03,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:03,675 INFO L85 PathProgramCache]: Analyzing trace with hash 2077457, now seen corresponding path program 2 times [2023-02-13 03:41:03,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:41:03,675 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545813865] [2023-02-13 03:41:03,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:41:03,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:41:03,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:03,678 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:41:03,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:03,680 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:41:03,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:03,681 INFO L85 PathProgramCache]: Analyzing trace with hash -1695948787, now seen corresponding path program 1 times [2023-02-13 03:41:03,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:41:03,681 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335995458] [2023-02-13 03:41:03,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:41:03,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:41:03,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:03,684 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:41:03,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:03,686 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:41:03,698 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:41:03,698 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:41:03,698 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:41:03,698 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:41:03,698 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-13 03:41:03,698 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:03,698 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:41:03,698 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:41:03,698 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2023-02-13 03:41:03,698 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:41:03,698 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:41:03,699 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:41:03,703 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:41:03,704 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:41:03,723 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:41:03,723 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-13 03:41:03,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:03,724 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:03,725 INFO L229 MonitoredProcess]: Starting monitored process 17 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:41:03,730 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-02-13 03:41:03,731 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:41:03,731 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:41:03,754 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2023-02-13 03:41:03,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:03,755 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:03,755 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 03:41:03,757 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 03:41:03,757 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-13 03:41:03,758 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:41:03,801 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-13 03:41:03,802 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 03:41:03,803 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:41:03,803 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:41:03,803 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:41:03,803 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:41:03,803 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-13 03:41:03,803 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:03,804 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:41:03,804 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:41:03,804 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2023-02-13 03:41:03,804 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:41:03,804 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:41:03,805 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:41:03,811 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:41:03,814 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:41:03,840 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:41:03,841 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-13 03:41:03,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:03,841 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:03,842 INFO L229 MonitoredProcess]: Starting monitored process 19 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:41:03,847 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-02-13 03:41:03,848 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:41:03,854 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:41:03,855 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:41:03,855 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:41:03,855 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:41:03,855 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:41:03,856 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:41:03,856 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:41:03,860 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-13 03:41:03,864 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-13 03:41:03,864 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-13 03:41:03,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:03,865 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:03,866 INFO L229 MonitoredProcess]: Starting monitored process 20 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:41:03,873 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-02-13 03:41:03,876 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-13 03:41:03,877 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-13 03:41:03,877 INFO L513 LassoAnalysis]: Proved termination. [2023-02-13 03:41:03,877 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2023-02-13 03:41:03,894 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2023-02-13 03:41:03,895 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-13 03:41:03,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:03,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:41:03,910 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-13 03:41:03,910 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:41:03,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:41:03,916 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-13 03:41:03,917 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:41:03,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 03:41:03,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:41:03,935 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-13 03:41:03,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:41:03,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:41:03,970 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-13 03:41:03,971 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:41:04,003 INFO L100 LoopCannibalizer]: 2 predicates before loop cannibalization 3 predicates after loop cannibalization [2023-02-13 03:41:04,004 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2023-02-13 03:41:04,004 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 18 states and 33 transitions. cyclomatic complexity: 18 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 03:41:04,091 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 18 states and 33 transitions. cyclomatic complexity: 18. 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 81 states and 135 transitions. Complement of second has 34 states. [2023-02-13 03:41:04,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 3 non-accepting loop states 2 accepting loop states [2023-02-13 03:41:04,094 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 03:41:04,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 40 transitions. [2023-02-13 03:41:04,095 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 40 transitions. Stem has 2 letters. Loop has 4 letters. [2023-02-13 03:41:04,095 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:41:04,096 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 40 transitions. Stem has 6 letters. Loop has 4 letters. [2023-02-13 03:41:04,096 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:41:04,096 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 40 transitions. Stem has 2 letters. Loop has 8 letters. [2023-02-13 03:41:04,097 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:41:04,099 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 81 states and 135 transitions. [2023-02-13 03:41:04,103 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 21 [2023-02-13 03:41:04,104 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 81 states to 41 states and 62 transitions. [2023-02-13 03:41:04,104 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2023-02-13 03:41:04,105 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2023-02-13 03:41:04,105 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 62 transitions. [2023-02-13 03:41:04,105 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-13 03:41:04,106 INFO L220 hiAutomatonCegarLoop]: Abstraction has 41 states and 62 transitions. [2023-02-13 03:41:04,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states and 62 transitions. [2023-02-13 03:41:04,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 26. [2023-02-13 03:41:04,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 26 states have (on average 1.6153846153846154) internal successors, (42), 25 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:41:04,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 42 transitions. [2023-02-13 03:41:04,109 INFO L242 hiAutomatonCegarLoop]: Abstraction has 26 states and 42 transitions. [2023-02-13 03:41:04,110 INFO L426 stractBuchiCegarLoop]: Abstraction has 26 states and 42 transitions. [2023-02-13 03:41:04,110 INFO L333 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-02-13 03:41:04,110 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 42 transitions. [2023-02-13 03:41:04,111 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2023-02-13 03:41:04,111 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:41:04,111 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:41:04,112 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-13 03:41:04,112 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-13 03:41:04,112 INFO L733 eck$LassoCheckResult]: Stem: 586#ULTIMATE.startENTRY [58] ULTIMATE.startENTRY-->L10-1: Formula: true InVars {} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_16|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_4|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_#t~nondet0#1] 587#L10-1 [55] L10-1-->L10: Formula: (< |v_ULTIMATE.start_main_~i~0#1_5| 0) InVars {ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_5|} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_5|} AuxVars[] AssignedVars[] 603#L10 [2023-02-13 03:41:04,112 INFO L735 eck$LassoCheckResult]: Loop: 603#L10 [57] L10-->L10-1: Formula: (and (= |v_ULTIMATE.start_main_~i~0#1_14| 0) (> 0 (+ |v_ULTIMATE.start_main_~i~0#1_15| 5))) InVars {ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_15|} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_14|} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0#1] 604#L10-1 [55] L10-1-->L10: Formula: (< |v_ULTIMATE.start_main_~i~0#1_5| 0) InVars {ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_5|} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_5|} AuxVars[] AssignedVars[] 603#L10 [2023-02-13 03:41:04,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:04,113 INFO L85 PathProgramCache]: Analyzing trace with hash 2814, now seen corresponding path program 2 times [2023-02-13 03:41:04,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:41:04,113 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132129931] [2023-02-13 03:41:04,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:41:04,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:41:04,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:04,117 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:41:04,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:04,119 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:41:04,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:04,120 INFO L85 PathProgramCache]: Analyzing trace with hash 2783, now seen corresponding path program 1 times [2023-02-13 03:41:04,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:41:04,120 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134524555] [2023-02-13 03:41:04,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:41:04,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:41:04,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:41:04,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 03:41:04,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-13 03:41:04,129 INFO L335 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134524555] [2023-02-13 03:41:04,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134524555] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-13 03:41:04,130 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-13 03:41:04,130 ERROR L191 FreeRefinementEngine]: {615#true} [617#(<= 0 |ULTIMATE.start_main_~i~0#1|)] {616#false} [2023-02-13 03:41:04,130 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-02-13 03:41:04,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328929997] [2023-02-13 03:41:04,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-13 03:41:04,143 INFO L750 eck$LassoCheckResult]: loop already infeasible [2023-02-13 03:41:04,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-13 03:41:04,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-13 03:41:04,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-13 03:41:04,144 INFO L87 Difference]: Start difference. First operand 26 states and 42 transitions. cyclomatic complexity: 19 Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:41:04,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-13 03:41:04,153 INFO L93 Difference]: Finished difference Result 27 states and 42 transitions. [2023-02-13 03:41:04,153 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 42 transitions. [2023-02-13 03:41:04,153 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 14 [2023-02-13 03:41:04,153 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 27 states and 42 transitions. [2023-02-13 03:41:04,154 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2023-02-13 03:41:04,154 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2023-02-13 03:41:04,154 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 42 transitions. [2023-02-13 03:41:04,154 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-13 03:41:04,154 INFO L220 hiAutomatonCegarLoop]: Abstraction has 27 states and 42 transitions. [2023-02-13 03:41:04,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 42 transitions. [2023-02-13 03:41:04,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2023-02-13 03:41:04,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 26 states have (on average 1.5769230769230769) internal successors, (41), 25 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:41:04,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 41 transitions. [2023-02-13 03:41:04,155 INFO L242 hiAutomatonCegarLoop]: Abstraction has 26 states and 41 transitions. [2023-02-13 03:41:04,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-13 03:41:04,156 INFO L426 stractBuchiCegarLoop]: Abstraction has 26 states and 41 transitions. [2023-02-13 03:41:04,156 INFO L333 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-02-13 03:41:04,156 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 41 transitions. [2023-02-13 03:41:04,158 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-02-13 03:41:04,158 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2023-02-13 03:41:04,158 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:41:04,159 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:41:04,159 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-13 03:41:04,159 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-02-13 03:41:04,159 INFO L733 eck$LassoCheckResult]: Stem: 645#ULTIMATE.startENTRY [58] ULTIMATE.startENTRY-->L10-1: Formula: true InVars {} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_16|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_4|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_#t~nondet0#1] 646#L10-1 [55] L10-1-->L10: Formula: (< |v_ULTIMATE.start_main_~i~0#1_5| 0) InVars {ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_5|} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_5|} AuxVars[] AssignedVars[] 661#L10 [2023-02-13 03:41:04,159 INFO L735 eck$LassoCheckResult]: Loop: 661#L10 [37] L10-->L11: Formula: (and (<= 0 (+ 5 |v_ULTIMATE.start_main_~i~0#1_6|)) (<= |v_ULTIMATE.start_main_~i~0#1_6| 35)) InVars {ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_6|} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_6|} AuxVars[] AssignedVars[] 656#L11 [47] L11-->L10-1: Formula: (and (= |v_ULTIMATE.start_main_~i~0#1_7| (- 5)) (< |v_ULTIMATE.start_main_~i~0#1_8| 0)) InVars {ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_8|} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_7|} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0#1] 657#L10-1 [55] L10-1-->L10: Formula: (< |v_ULTIMATE.start_main_~i~0#1_5| 0) InVars {ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_5|} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_5|} AuxVars[] AssignedVars[] 661#L10 [2023-02-13 03:41:04,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:04,162 INFO L85 PathProgramCache]: Analyzing trace with hash 2814, now seen corresponding path program 3 times [2023-02-13 03:41:04,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:41:04,162 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084736202] [2023-02-13 03:41:04,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:41:04,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:41:04,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:04,164 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:41:04,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:04,165 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:41:04,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:04,166 INFO L85 PathProgramCache]: Analyzing trace with hash 66860, now seen corresponding path program 1 times [2023-02-13 03:41:04,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:41:04,166 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084452660] [2023-02-13 03:41:04,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:41:04,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:41:04,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:04,168 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:41:04,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:04,169 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:41:04,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:04,169 INFO L85 PathProgramCache]: Analyzing trace with hash 83868943, now seen corresponding path program 1 times [2023-02-13 03:41:04,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:41:04,170 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071730003] [2023-02-13 03:41:04,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:41:04,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:41:04,173 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2023-02-13 03:41:04,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:04,173 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:41:04,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:04,175 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:41:04,190 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 03:41:04,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.02 03:41:04 BasicIcfg [2023-02-13 03:41:04,200 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-02-13 03:41:04,200 INFO L158 Benchmark]: Toolchain (without parser) took 2276.00ms. Allocated memory was 2.1GB in the beginning and 2.6GB in the end (delta: 436.2MB). Free memory was 2.1GB in the beginning and 2.5GB in the end (delta: -430.5MB). Peak memory consumption was 9.6MB. Max. memory is 42.9GB. [2023-02-13 03:41:04,200 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 2.1GB. Free memory is still 2.1GB. There was no memory consumed. Max. memory is 42.9GB. [2023-02-13 03:41:04,200 INFO L158 Benchmark]: CACSL2BoogieTranslator took 144.04ms. 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 03:41:04,201 INFO L158 Benchmark]: Boogie Procedure Inliner took 15.27ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 42.9GB. [2023-02-13 03:41:04,201 INFO L158 Benchmark]: Boogie Preprocessor took 8.73ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 1.3MB). Peak memory consumption was 16.8MB. Max. memory is 42.9GB. [2023-02-13 03:41:04,201 INFO L158 Benchmark]: RCFGBuilder took 205.09ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. [2023-02-13 03:41:04,201 INFO L158 Benchmark]: BlockEncodingV2 took 42.59ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 4.7MB). There was no memory consumed. Max. memory is 42.9GB. [2023-02-13 03:41:04,201 INFO L158 Benchmark]: TraceAbstraction took 15.09ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. [2023-02-13 03:41:04,201 INFO L158 Benchmark]: BuchiAutomizer took 1839.74ms. Allocated memory was 2.1GB in the beginning and 2.6GB in the end (delta: 436.2MB). Free memory was 2.1GB in the beginning and 2.5GB in the end (delta: -461.2MB). There was no memory consumed. Max. memory is 42.9GB. [2023-02-13 03:41:04,202 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 10 locations, 14 edges - StatisticsResult: Encoded RCFG 5 locations, 10 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 2.1GB. Free memory is still 2.1GB. There was no memory consumed. Max. memory is 42.9GB. * CACSL2BoogieTranslator took 144.04ms. 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 15.27ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 42.9GB. * Boogie Preprocessor took 8.73ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 1.3MB). Peak memory consumption was 16.8MB. Max. memory is 42.9GB. * RCFGBuilder took 205.09ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. * BlockEncodingV2 took 42.59ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 4.7MB). There was no memory consumed. Max. memory is 42.9GB. * TraceAbstraction took 15.09ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. * BuchiAutomizer took 1839.74ms. Allocated memory was 2.1GB in the beginning and 2.6GB in the end (delta: 436.2MB). Free memory was 2.1GB in the beginning and 2.5GB in the end (delta: -461.2MB). There was no memory consumed. 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 5 terminating modules (2 trivial, 0 deterministic, 3 nondeterministic) and one nonterminating remainder module.One nondeterministic module has affine ranking function i and consists of 3 locations. One nondeterministic module has affine ranking function i and consists of 8 locations. One nondeterministic module has affine ranking function i and consists of 7 locations. 2 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 26 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.8s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 1.2s. Construction of modules took 0.1s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 53 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 [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 59 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 57 mSDsluCounter, 13 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 33 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 187 IncrementalHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 33 mSolverCounterUnsat, 13 mSDtfsCounter, 187 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT2 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital11 mio100 ax211 hnf100 lsp47 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq147 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 18ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 10]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {\result=0, i=-5, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@24b098c3=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 10]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] i = __VERIFIER_nondet_int() [L9] COND TRUE i != 0 Loop: [L10] COND TRUE -5 <= i && i <= 35 [L11] COND TRUE i < 0 [L12] i = -5 [L9] COND TRUE i != 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2023-02-13 03:41:04,228 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...