20.85/12.47 YES 20.85/12.47 20.85/12.47 Ultimate: Cannot open display: 20.85/12.47 This is Ultimate 0.1.24-8dc7c08-m 20.85/12.47 [2019-03-28 11:59:02,924 INFO L170 SettingsManager]: Resetting all preferences to default values... 20.85/12.47 [2019-03-28 11:59:02,926 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values 20.85/12.47 [2019-03-28 11:59:02,937 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 20.85/12.47 [2019-03-28 11:59:02,937 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values 20.85/12.47 [2019-03-28 11:59:02,938 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values 20.85/12.47 [2019-03-28 11:59:02,940 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values 20.85/12.47 [2019-03-28 11:59:02,941 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values 20.85/12.47 [2019-03-28 11:59:02,943 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values 20.85/12.47 [2019-03-28 11:59:02,943 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values 20.85/12.47 [2019-03-28 11:59:02,944 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 20.85/12.47 [2019-03-28 11:59:02,944 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values 20.85/12.47 [2019-03-28 11:59:02,945 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values 20.85/12.47 [2019-03-28 11:59:02,946 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values 20.85/12.47 [2019-03-28 11:59:02,947 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values 20.85/12.47 [2019-03-28 11:59:02,948 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values 20.85/12.47 [2019-03-28 11:59:02,949 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values 20.85/12.47 [2019-03-28 11:59:02,951 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values 20.85/12.47 [2019-03-28 11:59:02,952 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values 20.85/12.47 [2019-03-28 11:59:02,954 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values 20.85/12.47 [2019-03-28 11:59:02,955 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values 20.85/12.47 [2019-03-28 11:59:02,956 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values 20.85/12.47 [2019-03-28 11:59:02,958 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 20.85/12.47 [2019-03-28 11:59:02,958 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... 20.85/12.47 [2019-03-28 11:59:02,959 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values 20.85/12.47 [2019-03-28 11:59:02,959 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values 20.85/12.47 [2019-03-28 11:59:02,960 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values 20.85/12.47 [2019-03-28 11:59:02,961 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... 20.85/12.47 [2019-03-28 11:59:02,961 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values 20.85/12.47 [2019-03-28 11:59:02,962 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values 20.85/12.47 [2019-03-28 11:59:02,962 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values 20.85/12.47 [2019-03-28 11:59:02,963 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values 20.85/12.47 [2019-03-28 11:59:02,964 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... 20.85/12.47 [2019-03-28 11:59:02,964 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values 20.85/12.47 [2019-03-28 11:59:02,965 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 20.85/12.47 [2019-03-28 11:59:02,965 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... 20.85/12.47 [2019-03-28 11:59:02,965 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values 20.85/12.47 [2019-03-28 11:59:02,966 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values 20.85/12.47 [2019-03-28 11:59:02,967 INFO L181 SettingsManager]: Finished resetting all preferences to default values... 20.85/12.47 [2019-03-28 11:59:02,967 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf 20.85/12.47 [2019-03-28 11:59:02,982 INFO L110 SettingsManager]: Loading preferences was successful 20.85/12.47 [2019-03-28 11:59:02,982 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: 20.85/12.47 [2019-03-28 11:59:02,983 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: 20.85/12.47 [2019-03-28 11:59:02,983 INFO L133 SettingsManager]: * Rewrite not-equals=true 20.85/12.47 [2019-03-28 11:59:02,984 INFO L133 SettingsManager]: * Create parallel compositions if possible=false 20.85/12.47 [2019-03-28 11:59:02,984 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE 20.85/12.47 [2019-03-28 11:59:02,984 INFO L133 SettingsManager]: * Use SBE=true 20.85/12.47 [2019-03-28 11:59:02,984 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: 20.85/12.47 [2019-03-28 11:59:02,984 INFO L133 SettingsManager]: * Use old map elimination=false 20.85/12.47 [2019-03-28 11:59:02,985 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false 20.85/12.47 [2019-03-28 11:59:02,985 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION 20.85/12.47 [2019-03-28 11:59:02,985 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true 20.85/12.47 [2019-03-28 11:59:02,985 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES 20.85/12.47 [2019-03-28 11:59:02,985 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true 20.85/12.47 [2019-03-28 11:59:02,985 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 20.85/12.47 [2019-03-28 11:59:02,986 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: 20.85/12.47 [2019-03-28 11:59:02,986 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false 20.85/12.47 [2019-03-28 11:59:02,986 INFO L133 SettingsManager]: * Check division by zero=IGNORE 20.85/12.47 [2019-03-28 11:59:02,986 INFO L133 SettingsManager]: * Check if freed pointer was valid=false 20.85/12.47 [2019-03-28 11:59:02,986 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false 20.85/12.47 [2019-03-28 11:59:02,987 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE 20.85/12.47 [2019-03-28 11:59:02,987 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: 20.85/12.47 [2019-03-28 11:59:02,987 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements 20.85/12.47 [2019-03-28 11:59:02,987 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump 20.85/12.47 [2019-03-28 11:59:02,987 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 20.85/12.47 [2019-03-28 11:59:02,987 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: 20.85/12.47 [2019-03-28 11:59:02,988 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles 20.85/12.47 [2019-03-28 11:59:02,988 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL 20.85/12.47 [2019-03-28 11:59:02,988 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 20.85/12.47 [2019-03-28 11:59:03,014 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp 20.85/12.47 [2019-03-28 11:59:03,038 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized 20.85/12.47 [2019-03-28 11:59:03,042 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. 20.85/12.47 [2019-03-28 11:59:03,043 INFO L271 PluginConnector]: Initializing CDTParser... 20.85/12.47 [2019-03-28 11:59:03,043 INFO L276 PluginConnector]: CDTParser initialized 20.85/12.47 [2019-03-28 11:59:03,044 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c 20.85/12.47 [2019-03-28 11:59:03,109 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/7d158c2f992b442a88640dbcb3bfb5e4/FLAG68fb0a688 20.85/12.47 [2019-03-28 11:59:03,660 INFO L307 CDTParser]: Found 1 translation units. 20.85/12.47 [2019-03-28 11:59:03,661 INFO L161 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c 20.85/12.47 [2019-03-28 11:59:03,667 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/7d158c2f992b442a88640dbcb3bfb5e4/FLAG68fb0a688 20.85/12.47 [2019-03-28 11:59:04,071 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/7d158c2f992b442a88640dbcb3bfb5e4 20.85/12.47 [2019-03-28 11:59:04,083 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### 20.85/12.47 [2019-03-28 11:59:04,085 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. 20.85/12.47 [2019-03-28 11:59:04,086 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- 20.85/12.47 [2019-03-28 11:59:04,086 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... 20.85/12.47 [2019-03-28 11:59:04,090 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized 20.85/12.47 [2019-03-28 11:59:04,091 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.03 11:59:04" (1/1) ... 20.85/12.47 [2019-03-28 11:59:04,095 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d828353 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 11:59:04, skipping insertion in model container 20.85/12.47 [2019-03-28 11:59:04,095 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.03 11:59:04" (1/1) ... 20.85/12.47 [2019-03-28 11:59:04,103 INFO L145 MainTranslator]: Starting translation in SV-COMP mode 20.85/12.47 [2019-03-28 11:59:04,121 INFO L176 MainTranslator]: Built tables and reachable declarations 20.85/12.47 [2019-03-28 11:59:04,290 INFO L206 PostProcessor]: Analyzing one entry point: main 20.85/12.47 [2019-03-28 11:59:04,295 INFO L191 MainTranslator]: Completed pre-run 20.85/12.47 [2019-03-28 11:59:04,312 INFO L206 PostProcessor]: Analyzing one entry point: main 20.85/12.47 [2019-03-28 11:59:04,328 INFO L195 MainTranslator]: Completed translation 20.85/12.47 [2019-03-28 11:59:04,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 11:59:04 WrapperNode 20.85/12.47 [2019-03-28 11:59:04,328 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- 20.85/12.47 [2019-03-28 11:59:04,329 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- 20.85/12.47 [2019-03-28 11:59:04,329 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... 20.85/12.47 [2019-03-28 11:59:04,330 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized 20.85/12.47 [2019-03-28 11:59:04,395 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 11:59:04" (1/1) ... 20.85/12.47 [2019-03-28 11:59:04,402 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 11:59:04" (1/1) ... 20.85/12.47 [2019-03-28 11:59:04,421 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- 20.85/12.47 [2019-03-28 11:59:04,422 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- 20.85/12.47 [2019-03-28 11:59:04,422 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... 20.85/12.47 [2019-03-28 11:59:04,422 INFO L276 PluginConnector]: Boogie Preprocessor initialized 20.85/12.47 [2019-03-28 11:59:04,432 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 11:59:04" (1/1) ... 20.85/12.47 [2019-03-28 11:59:04,432 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 11:59:04" (1/1) ... 20.85/12.47 [2019-03-28 11:59:04,432 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 11:59:04" (1/1) ... 20.85/12.47 [2019-03-28 11:59:04,433 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 11:59:04" (1/1) ... 20.85/12.47 [2019-03-28 11:59:04,435 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 11:59:04" (1/1) ... 20.85/12.47 [2019-03-28 11:59:04,440 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 11:59:04" (1/1) ... 20.85/12.47 [2019-03-28 11:59:04,441 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 11:59:04" (1/1) ... 20.85/12.47 [2019-03-28 11:59:04,462 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- 20.85/12.47 [2019-03-28 11:59:04,462 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- 20.85/12.47 [2019-03-28 11:59:04,462 INFO L271 PluginConnector]: Initializing RCFGBuilder... 20.85/12.47 [2019-03-28 11:59:04,463 INFO L276 PluginConnector]: RCFGBuilder initialized 20.85/12.47 [2019-03-28 11:59:04,464 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 11:59:04" (1/1) ... 20.85/12.47 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 20.85/12.47 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) 20.85/12.47 Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 20.85/12.47 [2019-03-28 11:59:04,526 INFO L130 BoogieDeclarations]: Found specification of procedure rec 20.85/12.47 [2019-03-28 11:59:04,527 INFO L138 BoogieDeclarations]: Found implementation of procedure rec 20.85/12.47 [2019-03-28 11:59:04,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start 20.85/12.47 [2019-03-28 11:59:04,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start 20.85/12.47 [2019-03-28 11:59:04,668 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) 20.85/12.47 [2019-03-28 11:59:04,669 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. 20.85/12.47 [2019-03-28 11:59:04,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 11:59:04 BoogieIcfgContainer 20.85/12.47 [2019-03-28 11:59:04,670 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- 20.85/12.47 [2019-03-28 11:59:04,671 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- 20.85/12.47 [2019-03-28 11:59:04,671 INFO L271 PluginConnector]: Initializing BlockEncodingV2... 20.85/12.47 [2019-03-28 11:59:04,673 INFO L276 PluginConnector]: BlockEncodingV2 initialized 20.85/12.47 [2019-03-28 11:59:04,674 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 11:59:04" (1/1) ... 20.85/12.47 [2019-03-28 11:59:04,691 INFO L313 BlockEncoder]: Initial Icfg 15 locations, 19 edges 20.85/12.47 [2019-03-28 11:59:04,693 INFO L258 BlockEncoder]: Using Remove infeasible edges 20.85/12.47 [2019-03-28 11:59:04,693 INFO L263 BlockEncoder]: Using Maximize final states 20.85/12.47 [2019-03-28 11:59:04,694 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false 20.85/12.47 [2019-03-28 11:59:04,694 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE 20.85/12.47 [2019-03-28 11:59:04,696 INFO L296 BlockEncoder]: Using Remove sink states 20.85/12.47 [2019-03-28 11:59:04,697 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true 20.85/12.47 [2019-03-28 11:59:04,698 INFO L179 BlockEncoder]: Using Rewrite not-equals 20.85/12.47 [2019-03-28 11:59:04,714 INFO L185 BlockEncoder]: Using Use SBE 20.85/12.47 [2019-03-28 11:59:04,728 INFO L200 BlockEncoder]: SBE split 1 edges 20.85/12.47 [2019-03-28 11:59:04,733 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility 20.85/12.47 [2019-03-28 11:59:04,734 INFO L71 MaximizeFinalStates]: 0 new accepting states 20.85/12.47 [2019-03-28 11:59:04,743 INFO L100 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding 20.85/12.47 [2019-03-28 11:59:04,746 INFO L70 RemoveSinkStates]: Removed 4 edges and 3 locations by removing sink states 20.85/12.47 [2019-03-28 11:59:04,747 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility 20.85/12.47 [2019-03-28 11:59:04,748 INFO L71 MaximizeFinalStates]: 0 new accepting states 20.85/12.47 [2019-03-28 11:59:04,750 INFO L100 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding 20.85/12.47 [2019-03-28 11:59:04,750 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states 20.85/12.47 [2019-03-28 11:59:04,751 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility 20.85/12.47 [2019-03-28 11:59:04,751 INFO L71 MaximizeFinalStates]: 0 new accepting states 20.85/12.47 [2019-03-28 11:59:04,751 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding 20.85/12.47 [2019-03-28 11:59:04,752 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states 20.85/12.47 [2019-03-28 11:59:04,752 INFO L313 BlockEncoder]: Encoded RCFG 9 locations, 12 edges 20.85/12.47 [2019-03-28 11:59:04,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 28.03 11:59:04 BasicIcfg 20.85/12.47 [2019-03-28 11:59:04,753 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- 20.85/12.47 [2019-03-28 11:59:04,753 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- 20.85/12.47 [2019-03-28 11:59:04,754 INFO L271 PluginConnector]: Initializing TraceAbstraction... 20.85/12.47 [2019-03-28 11:59:04,757 INFO L276 PluginConnector]: TraceAbstraction initialized 20.85/12.47 [2019-03-28 11:59:04,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.03 11:59:04" (1/4) ... 20.85/12.47 [2019-03-28 11:59:04,758 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5750e97e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.03 11:59:04, skipping insertion in model container 20.85/12.47 [2019-03-28 11:59:04,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 11:59:04" (2/4) ... 20.85/12.47 [2019-03-28 11:59:04,758 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5750e97e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.03 11:59:04, skipping insertion in model container 20.85/12.47 [2019-03-28 11:59:04,759 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 11:59:04" (3/4) ... 20.85/12.47 [2019-03-28 11:59:04,759 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5750e97e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.03 11:59:04, skipping insertion in model container 20.85/12.47 [2019-03-28 11:59:04,759 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 28.03 11:59:04" (4/4) ... 20.85/12.47 [2019-03-28 11:59:04,761 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 20.85/12.47 [2019-03-28 11:59:04,770 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION 20.85/12.47 [2019-03-28 11:59:04,778 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. 20.85/12.47 [2019-03-28 11:59:04,796 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. 20.85/12.47 [2019-03-28 11:59:04,827 INFO L133 ementStrategyFactory]: Using default assertion order modulation 20.85/12.47 [2019-03-28 11:59:04,828 INFO L382 AbstractCegarLoop]: Interprodecural is true 20.85/12.47 [2019-03-28 11:59:04,828 INFO L383 AbstractCegarLoop]: Hoare is true 20.85/12.47 [2019-03-28 11:59:04,829 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates 20.85/12.47 [2019-03-28 11:59:04,829 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE 20.85/12.47 [2019-03-28 11:59:04,829 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION 20.85/12.47 [2019-03-28 11:59:04,829 INFO L387 AbstractCegarLoop]: Difference is false 20.85/12.47 [2019-03-28 11:59:04,829 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA 20.85/12.47 [2019-03-28 11:59:04,829 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== 20.85/12.47 [2019-03-28 11:59:04,847 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. 20.85/12.47 [2019-03-28 11:59:04,852 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. 20.85/12.47 [2019-03-28 11:59:04,859 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 9 states. 20.85/12.47 [2019-03-28 11:59:04,915 INFO L451 ceAbstractionStarter]: At program point recENTRY(lines 4 14) the Hoare annotation is: true 20.85/12.47 [2019-03-28 11:59:04,915 INFO L448 ceAbstractionStarter]: For program point recFINAL(lines 4 14) no Hoare annotation was computed. 20.85/12.47 [2019-03-28 11:59:04,915 INFO L451 ceAbstractionStarter]: At program point L8(line 8) the Hoare annotation is: true 20.85/12.47 [2019-03-28 11:59:04,916 INFO L448 ceAbstractionStarter]: For program point recEXIT(lines 4 14) no Hoare annotation was computed. 20.85/12.47 [2019-03-28 11:59:04,916 INFO L451 ceAbstractionStarter]: At program point L10-2(lines 10 11) the Hoare annotation is: true 20.85/12.47 [2019-03-28 11:59:04,916 INFO L448 ceAbstractionStarter]: For program point L8-1(line 8) no Hoare annotation was computed. 20.85/12.47 [2019-03-28 11:59:04,916 INFO L448 ceAbstractionStarter]: For program point L5(lines 5 13) no Hoare annotation was computed. 20.85/12.47 [2019-03-28 11:59:04,916 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. 20.85/12.47 [2019-03-28 11:59:04,916 INFO L451 ceAbstractionStarter]: At program point L20(line 20) the Hoare annotation is: true 20.85/12.47 [2019-03-28 11:59:04,925 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.03 11:59:04 BasicIcfg 20.85/12.47 [2019-03-28 11:59:04,925 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- 20.85/12.47 [2019-03-28 11:59:04,926 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- 20.85/12.47 [2019-03-28 11:59:04,926 INFO L271 PluginConnector]: Initializing BuchiAutomizer... 20.85/12.47 [2019-03-28 11:59:04,929 INFO L276 PluginConnector]: BuchiAutomizer initialized 20.85/12.47 [2019-03-28 11:59:04,930 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 20.85/12.47 [2019-03-28 11:59:04,930 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.03 11:59:04" (1/5) ... 20.85/12.47 [2019-03-28 11:59:04,931 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1d2aaead and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.03 11:59:04, skipping insertion in model container 20.85/12.47 [2019-03-28 11:59:04,931 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 20.85/12.47 [2019-03-28 11:59:04,931 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 11:59:04" (2/5) ... 20.85/12.47 [2019-03-28 11:59:04,932 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1d2aaead and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.03 11:59:04, skipping insertion in model container 20.85/12.47 [2019-03-28 11:59:04,932 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 20.85/12.47 [2019-03-28 11:59:04,932 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 11:59:04" (3/5) ... 20.85/12.47 [2019-03-28 11:59:04,932 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1d2aaead and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.03 11:59:04, skipping insertion in model container 20.85/12.47 [2019-03-28 11:59:04,933 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 20.85/12.47 [2019-03-28 11:59:04,933 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 28.03 11:59:04" (4/5) ... 20.85/12.47 [2019-03-28 11:59:04,933 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1d2aaead and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.03 11:59:04, skipping insertion in model container 20.85/12.47 [2019-03-28 11:59:04,933 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 20.85/12.47 [2019-03-28 11:59:04,933 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.03 11:59:04" (5/5) ... 20.85/12.47 [2019-03-28 11:59:04,935 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 20.85/12.47 [2019-03-28 11:59:04,969 INFO L133 ementStrategyFactory]: Using default assertion order modulation 20.85/12.47 [2019-03-28 11:59:04,969 INFO L374 BuchiCegarLoop]: Interprodecural is true 20.85/12.47 [2019-03-28 11:59:04,969 INFO L375 BuchiCegarLoop]: Hoare is true 20.85/12.47 [2019-03-28 11:59:04,970 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates 20.85/12.47 [2019-03-28 11:59:04,970 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE 20.85/12.47 [2019-03-28 11:59:04,970 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION 20.85/12.47 [2019-03-28 11:59:04,970 INFO L379 BuchiCegarLoop]: Difference is false 20.85/12.47 [2019-03-28 11:59:04,970 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA 20.85/12.47 [2019-03-28 11:59:04,970 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== 20.85/12.47 [2019-03-28 11:59:04,974 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states. 20.85/12.47 [2019-03-28 11:59:04,993 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 20.85/12.47 [2019-03-28 11:59:04,993 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 20.85/12.47 [2019-03-28 11:59:04,993 INFO L119 BuchiIsEmpty]: Starting construction of run 20.85/12.47 [2019-03-28 11:59:05,000 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] 20.85/12.47 [2019-03-28 11:59:05,001 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] 20.85/12.47 [2019-03-28 11:59:05,001 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ 20.85/12.47 [2019-03-28 11:59:05,001 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states. 20.85/12.47 [2019-03-28 11:59:05,002 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 20.85/12.47 [2019-03-28 11:59:05,002 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 20.85/12.47 [2019-03-28 11:59:05,002 INFO L119 BuchiIsEmpty]: Starting construction of run 20.85/12.47 [2019-03-28 11:59:05,003 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] 20.85/12.47 [2019-03-28 11:59:05,003 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] 20.85/12.47 [2019-03-28 11:59:05,008 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [63] ULTIMATE.startENTRY-->L20: Formula: (< 0 v_ULTIMATE.start_main_~i~0_8) InVars {} OutVars{ULTIMATE.start_main_~res~1=v_ULTIMATE.start_main_~res~1_3, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_5|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8, ULTIMATE.start_main_#t~ret3=|v_ULTIMATE.start_main_#t~ret3_6|} AuxVars[] AssignedVars[ULTIMATE.start_main_~res~1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_#t~ret3] 11#L20true [44] L20-->recENTRY: Formula: (= |v_rec_#in~aInParam_2| v_ULTIMATE.start_main_~i~0_7) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} OutVars{rec_#in~a=|v_rec_#in~aInParam_2|} AuxVars[] AssignedVars[rec_#in~a]< 3#recENTRYtrue 20.85/12.47 [2019-03-28 11:59:05,009 INFO L796 eck$LassoCheckResult]: Loop: 3#recENTRYtrue [37] recENTRY-->L5: Formula: (= v_rec_~a_1 |v_rec_#in~a_1|) InVars {rec_#in~a=|v_rec_#in~a_1|} OutVars{rec_~a=v_rec_~a_1, rec_#in~a=|v_rec_#in~a_1|} AuxVars[] AssignedVars[rec_~a] 10#L5true [59] L5-->L8: Formula: (< 0 v_rec_~a_3) InVars {rec_~a=v_rec_~a_3} OutVars{rec_~a=v_rec_~a_3} AuxVars[] AssignedVars[] 5#L8true [46] L8-->recENTRY: Formula: (= |v_rec_#in~aInParam_1| (+ v_rec_~a_5 (- 1))) InVars {rec_~a=v_rec_~a_5} OutVars{rec_#in~a=|v_rec_#in~aInParam_1|} AuxVars[] AssignedVars[rec_#in~a]< 3#recENTRYtrue 20.85/12.47 [2019-03-28 11:59:05,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 20.85/12.47 [2019-03-28 11:59:05,014 INFO L82 PathProgramCache]: Analyzing trace with hash 2958, now seen corresponding path program 1 times 20.85/12.47 [2019-03-28 11:59:05,016 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 20.85/12.47 [2019-03-28 11:59:05,017 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 20.85/12.47 [2019-03-28 11:59:05,037 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 20.85/12.47 [2019-03-28 11:59:05,037 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 20.85/12.47 [2019-03-28 11:59:05,037 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 20.85/12.47 [2019-03-28 11:59:05,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 20.85/12.47 [2019-03-28 11:59:05,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 20.85/12.47 [2019-03-28 11:59:05,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 20.85/12.47 [2019-03-28 11:59:05,087 INFO L82 PathProgramCache]: Analyzing trace with hash 67223, now seen corresponding path program 1 times 20.85/12.47 [2019-03-28 11:59:05,087 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 20.85/12.47 [2019-03-28 11:59:05,087 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 20.85/12.47 [2019-03-28 11:59:05,088 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 20.85/12.47 [2019-03-28 11:59:05,088 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 20.85/12.47 [2019-03-28 11:59:05,088 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 20.85/12.47 [2019-03-28 11:59:05,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 20.85/12.47 [2019-03-28 11:59:05,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 20.85/12.47 [2019-03-28 11:59:05,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 20.85/12.47 [2019-03-28 11:59:05,098 INFO L82 PathProgramCache]: Analyzing trace with hash 88159210, now seen corresponding path program 1 times 20.85/12.47 [2019-03-28 11:59:05,099 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 20.85/12.47 [2019-03-28 11:59:05,099 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 20.85/12.47 [2019-03-28 11:59:05,100 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 20.85/12.47 [2019-03-28 11:59:05,100 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 20.85/12.47 [2019-03-28 11:59:05,100 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 20.85/12.47 [2019-03-28 11:59:05,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 20.85/12.47 [2019-03-28 11:59:05,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 20.85/12.47 [2019-03-28 11:59:05,176 INFO L216 LassoAnalysis]: Preferences: 20.85/12.47 [2019-03-28 11:59:05,177 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 20.85/12.47 [2019-03-28 11:59:05,177 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 20.85/12.47 [2019-03-28 11:59:05,177 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 20.85/12.47 [2019-03-28 11:59:05,178 INFO L127 ssoRankerPreferences]: Use exernal solver: true 20.85/12.47 [2019-03-28 11:59:05,178 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 20.85/12.47 [2019-03-28 11:59:05,178 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 20.85/12.47 [2019-03-28 11:59:05,178 INFO L130 ssoRankerPreferences]: Path of dumped script: 20.85/12.47 [2019-03-28 11:59:05,178 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop 20.85/12.47 [2019-03-28 11:59:05,178 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 20.85/12.47 [2019-03-28 11:59:05,179 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 20.85/12.47 [2019-03-28 11:59:05,197 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 20.85/12.47 [2019-03-28 11:59:05,204 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 20.85/12.47 [2019-03-28 11:59:05,208 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 20.85/12.47 [2019-03-28 11:59:05,215 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 20.85/12.47 [2019-03-28 11:59:05,218 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 20.85/12.47 [2019-03-28 11:59:05,220 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 20.85/12.47 [2019-03-28 11:59:05,233 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 20.85/12.47 [2019-03-28 11:59:05,291 INFO L300 LassoAnalysis]: Preprocessing complete. 20.85/12.47 [2019-03-28 11:59:05,292 INFO L412 LassoAnalysis]: Checking for nontermination... 20.85/12.47 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 20.85/12.47 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 20.85/12.47 Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 20.85/12.47 [2019-03-28 11:59:05,306 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 20.85/12.47 [2019-03-28 11:59:05,307 INFO L163 nArgumentSynthesizer]: Using integer mode. 20.85/12.47 [2019-03-28 11:59:05,316 INFO L445 LassoAnalysis]: Proved nontermination for one component. 20.85/12.47 [2019-03-28 11:59:05,317 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_#t~ret0=0} Honda state: {rec_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 20.85/12.47 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 20.85/12.47 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 20.85/12.47 Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 20.85/12.47 [2019-03-28 11:59:05,349 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 20.85/12.47 [2019-03-28 11:59:05,349 INFO L163 nArgumentSynthesizer]: Using integer mode. 20.85/12.47 [2019-03-28 11:59:05,354 INFO L445 LassoAnalysis]: Proved nontermination for one component. 20.85/12.47 [2019-03-28 11:59:05,354 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_#t~post1=0} Honda state: {rec_#t~post1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 20.85/12.47 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 20.85/12.47 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 20.85/12.47 Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 20.85/12.47 [2019-03-28 11:59:05,383 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 20.85/12.47 [2019-03-28 11:59:05,384 INFO L163 nArgumentSynthesizer]: Using integer mode. 20.85/12.47 [2019-03-28 11:59:05,388 INFO L445 LassoAnalysis]: Proved nontermination for one component. 20.85/12.47 [2019-03-28 11:59:05,388 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_~res~0=0} Honda state: {rec_~res~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 20.85/12.47 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 20.85/12.47 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 20.85/12.47 Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 20.85/12.47 [2019-03-28 11:59:05,420 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 20.85/12.47 [2019-03-28 11:59:05,420 INFO L163 nArgumentSynthesizer]: Using integer mode. 20.85/12.47 [2019-03-28 11:59:05,424 INFO L445 LassoAnalysis]: Proved nontermination for one component. 20.85/12.47 [2019-03-28 11:59:05,424 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_#res=0} Honda state: {rec_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 20.85/12.47 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 20.85/12.47 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 20.85/12.47 Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 20.85/12.47 [2019-03-28 11:59:05,456 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 20.85/12.47 [2019-03-28 11:59:05,456 INFO L163 nArgumentSynthesizer]: Using integer mode. 20.85/12.47 [2019-03-28 11:59:05,460 INFO L445 LassoAnalysis]: Proved nontermination for one component. 20.85/12.47 [2019-03-28 11:59:05,460 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_~a=0} Honda state: {rec_~a=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 20.85/12.47 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 20.85/12.47 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 20.85/12.47 Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 20.85/12.47 [2019-03-28 11:59:05,490 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 20.85/12.47 [2019-03-28 11:59:05,490 INFO L163 nArgumentSynthesizer]: Using integer mode. 20.85/12.47 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 20.85/12.47 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 20.85/12.47 Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 20.85/12.47 [2019-03-28 11:59:05,522 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true 20.85/12.47 [2019-03-28 11:59:05,522 INFO L163 nArgumentSynthesizer]: Using integer mode. 20.85/12.47 [2019-03-28 11:59:05,554 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. 20.85/12.47 [2019-03-28 11:59:05,556 INFO L216 LassoAnalysis]: Preferences: 20.85/12.47 [2019-03-28 11:59:05,556 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 20.85/12.47 [2019-03-28 11:59:05,557 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 20.85/12.47 [2019-03-28 11:59:05,557 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 20.85/12.47 [2019-03-28 11:59:05,557 INFO L127 ssoRankerPreferences]: Use exernal solver: false 20.85/12.47 [2019-03-28 11:59:05,557 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 20.85/12.47 [2019-03-28 11:59:05,557 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 20.85/12.47 [2019-03-28 11:59:05,557 INFO L130 ssoRankerPreferences]: Path of dumped script: 20.85/12.47 [2019-03-28 11:59:05,557 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop 20.85/12.47 [2019-03-28 11:59:05,558 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 20.85/12.47 [2019-03-28 11:59:05,558 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 20.85/12.47 [2019-03-28 11:59:05,559 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 20.85/12.47 [2019-03-28 11:59:05,566 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 20.85/12.47 [2019-03-28 11:59:05,569 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 20.85/12.47 [2019-03-28 11:59:05,572 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 20.85/12.47 [2019-03-28 11:59:05,574 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 20.85/12.47 [2019-03-28 11:59:05,581 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 20.85/12.47 [2019-03-28 11:59:05,584 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 20.85/12.47 [2019-03-28 11:59:05,620 INFO L300 LassoAnalysis]: Preprocessing complete. 20.85/12.47 [2019-03-28 11:59:05,626 INFO L497 LassoAnalysis]: Using template 'affine'. 20.85/12.47 [2019-03-28 11:59:05,628 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 20.85/12.47 Termination analysis: LINEAR_WITH_GUESSES 20.85/12.47 Number of strict supporting invariants: 0 20.85/12.47 Number of non-strict supporting invariants: 1 20.85/12.47 Consider only non-deceasing supporting invariants: true 20.85/12.47 Simplify termination arguments: true 20.85/12.47 Simplify supporting invariants: trueOverapproximate stem: false 20.85/12.47 [2019-03-28 11:59:05,630 INFO L339 nArgumentSynthesizer]: Template has degree 0. 20.85/12.47 [2019-03-28 11:59:05,630 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 20.85/12.47 [2019-03-28 11:59:05,630 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 20.85/12.47 [2019-03-28 11:59:05,631 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 20.85/12.47 [2019-03-28 11:59:05,631 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 20.85/12.47 [2019-03-28 11:59:05,633 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 20.85/12.47 [2019-03-28 11:59:05,633 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 20.85/12.47 [2019-03-28 11:59:05,637 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. 20.85/12.47 [2019-03-28 11:59:05,638 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 20.85/12.47 Termination analysis: LINEAR_WITH_GUESSES 20.85/12.47 Number of strict supporting invariants: 0 20.85/12.47 Number of non-strict supporting invariants: 1 20.85/12.47 Consider only non-deceasing supporting invariants: true 20.85/12.47 Simplify termination arguments: true 20.85/12.47 Simplify supporting invariants: trueOverapproximate stem: false 20.85/12.47 [2019-03-28 11:59:05,638 INFO L339 nArgumentSynthesizer]: Template has degree 0. 20.85/12.47 [2019-03-28 11:59:05,638 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 20.85/12.47 [2019-03-28 11:59:05,638 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 20.85/12.47 [2019-03-28 11:59:05,639 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 20.85/12.47 [2019-03-28 11:59:05,639 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 20.85/12.47 [2019-03-28 11:59:05,639 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 20.85/12.47 [2019-03-28 11:59:05,640 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 20.85/12.47 [2019-03-28 11:59:05,641 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. 20.85/12.47 [2019-03-28 11:59:05,641 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 20.85/12.47 Termination analysis: LINEAR_WITH_GUESSES 20.85/12.47 Number of strict supporting invariants: 0 20.85/12.47 Number of non-strict supporting invariants: 1 20.85/12.47 Consider only non-deceasing supporting invariants: true 20.85/12.47 Simplify termination arguments: true 20.85/12.47 Simplify supporting invariants: trueOverapproximate stem: false 20.85/12.47 [2019-03-28 11:59:05,642 INFO L339 nArgumentSynthesizer]: Template has degree 0. 20.85/12.47 [2019-03-28 11:59:05,642 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 20.85/12.47 [2019-03-28 11:59:05,642 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 20.85/12.47 [2019-03-28 11:59:05,643 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 20.85/12.47 [2019-03-28 11:59:05,643 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 20.85/12.47 [2019-03-28 11:59:05,643 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 20.85/12.47 [2019-03-28 11:59:05,643 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 20.85/12.47 [2019-03-28 11:59:05,645 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. 20.85/12.47 [2019-03-28 11:59:05,645 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 20.85/12.47 Termination analysis: LINEAR_WITH_GUESSES 20.85/12.47 Number of strict supporting invariants: 0 20.85/12.47 Number of non-strict supporting invariants: 1 20.85/12.47 Consider only non-deceasing supporting invariants: true 20.85/12.47 Simplify termination arguments: true 20.85/12.47 Simplify supporting invariants: trueOverapproximate stem: false 20.85/12.47 [2019-03-28 11:59:05,646 INFO L339 nArgumentSynthesizer]: Template has degree 0. 20.85/12.47 [2019-03-28 11:59:05,646 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 20.85/12.47 [2019-03-28 11:59:05,646 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 20.85/12.47 [2019-03-28 11:59:05,646 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 20.85/12.47 [2019-03-28 11:59:05,646 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 20.85/12.47 [2019-03-28 11:59:05,647 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 20.85/12.47 [2019-03-28 11:59:05,647 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 20.85/12.47 [2019-03-28 11:59:05,649 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. 20.85/12.47 [2019-03-28 11:59:05,649 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 20.85/12.47 Termination analysis: LINEAR_WITH_GUESSES 20.85/12.47 Number of strict supporting invariants: 0 20.85/12.47 Number of non-strict supporting invariants: 1 20.85/12.47 Consider only non-deceasing supporting invariants: true 20.85/12.47 Simplify termination arguments: true 20.85/12.47 Simplify supporting invariants: trueOverapproximate stem: false 20.85/12.47 [2019-03-28 11:59:05,650 INFO L339 nArgumentSynthesizer]: Template has degree 0. 20.85/12.47 [2019-03-28 11:59:05,650 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 20.85/12.47 [2019-03-28 11:59:05,650 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 20.85/12.47 [2019-03-28 11:59:05,650 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 20.85/12.47 [2019-03-28 11:59:05,650 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 20.85/12.47 [2019-03-28 11:59:05,651 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 20.85/12.47 [2019-03-28 11:59:05,651 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 20.85/12.47 [2019-03-28 11:59:05,657 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. 20.85/12.47 [2019-03-28 11:59:05,661 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. 20.85/12.47 [2019-03-28 11:59:05,662 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. 20.85/12.47 [2019-03-28 11:59:05,664 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... 20.85/12.47 [2019-03-28 11:59:05,664 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. 20.85/12.47 [2019-03-28 11:59:05,664 INFO L518 LassoAnalysis]: Proved termination. 20.85/12.47 [2019-03-28 11:59:05,665 INFO L520 LassoAnalysis]: Termination argument consisting of: 20.85/12.47 Ranking function f(rec_#in~a) = 1*rec_#in~a 20.85/12.47 Supporting invariants [] 20.85/12.47 [2019-03-28 11:59:05,666 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed 20.85/12.47 [2019-03-28 11:59:05,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 20.85/12.47 [2019-03-28 11:59:05,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 20.85/12.47 [2019-03-28 11:59:05,713 INFO L256 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 4 conjunts are in the unsatisfiable core 20.85/12.47 [2019-03-28 11:59:05,714 INFO L279 TraceCheckSpWp]: Computing forward predicates... 20.85/12.47 [2019-03-28 11:59:05,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 20.85/12.47 [2019-03-28 11:59:05,735 INFO L256 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 7 conjunts are in the unsatisfiable core 20.85/12.47 [2019-03-28 11:59:05,736 INFO L279 TraceCheckSpWp]: Computing forward predicates... 20.85/12.47 [2019-03-28 11:59:05,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. 20.85/12.47 [2019-03-28 11:59:05,803 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization 20.85/12.47 [2019-03-28 11:59:05,808 INFO L152 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 20.85/12.47 [2019-03-28 11:59:05,809 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 9 states. Second operand 4 states. 20.85/12.47 [2019-03-28 11:59:05,954 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 9 states.. Second operand 4 states. Result 64 states and 96 transitions. Complement of second has 24 states. 20.85/12.47 [2019-03-28 11:59:05,955 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states 20.85/12.47 [2019-03-28 11:59:05,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. 20.85/12.47 [2019-03-28 11:59:05,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 27 transitions. 20.85/12.47 [2019-03-28 11:59:05,962 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 27 transitions. Stem has 2 letters. Loop has 3 letters. 20.85/12.47 [2019-03-28 11:59:05,964 INFO L116 BuchiAccepts]: Finished buchiAccepts. 20.85/12.47 [2019-03-28 11:59:05,964 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 27 transitions. Stem has 5 letters. Loop has 3 letters. 20.85/12.47 [2019-03-28 11:59:05,964 INFO L116 BuchiAccepts]: Finished buchiAccepts. 20.85/12.47 [2019-03-28 11:59:05,964 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 27 transitions. Stem has 2 letters. Loop has 6 letters. 20.85/12.47 [2019-03-28 11:59:05,965 INFO L116 BuchiAccepts]: Finished buchiAccepts. 20.85/12.47 [2019-03-28 11:59:05,974 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 64 states and 96 transitions. 20.85/12.47 [2019-03-28 11:59:05,981 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 7 20.85/12.47 [2019-03-28 11:59:05,991 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 64 states to 39 states and 65 transitions. 20.85/12.47 [2019-03-28 11:59:05,992 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 20.85/12.47 [2019-03-28 11:59:05,993 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 20.85/12.47 [2019-03-28 11:59:05,993 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 65 transitions. 20.85/12.47 [2019-03-28 11:59:05,994 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. 20.85/12.47 [2019-03-28 11:59:05,994 INFO L706 BuchiCegarLoop]: Abstraction has 39 states and 65 transitions. 20.85/12.47 [2019-03-28 11:59:06,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states and 65 transitions. 20.85/12.47 [2019-03-28 11:59:06,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 33. 20.85/12.47 [2019-03-28 11:59:06,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. 20.85/12.47 [2019-03-28 11:59:06,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 49 transitions. 20.85/12.47 [2019-03-28 11:59:06,035 INFO L729 BuchiCegarLoop]: Abstraction has 33 states and 49 transitions. 20.85/12.47 [2019-03-28 11:59:06,035 INFO L609 BuchiCegarLoop]: Abstraction has 33 states and 49 transitions. 20.85/12.47 [2019-03-28 11:59:06,035 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ 20.85/12.47 [2019-03-28 11:59:06,035 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 33 states and 49 transitions. 20.85/12.47 [2019-03-28 11:59:06,037 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 7 20.85/12.47 [2019-03-28 11:59:06,037 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 20.85/12.47 [2019-03-28 11:59:06,037 INFO L119 BuchiIsEmpty]: Starting construction of run 20.85/12.47 [2019-03-28 11:59:06,038 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] 20.85/12.47 [2019-03-28 11:59:06,038 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] 20.85/12.47 [2019-03-28 11:59:06,038 INFO L794 eck$LassoCheckResult]: Stem: 150#ULTIMATE.startENTRY [63] ULTIMATE.startENTRY-->L20: Formula: (< 0 v_ULTIMATE.start_main_~i~0_8) InVars {} OutVars{ULTIMATE.start_main_~res~1=v_ULTIMATE.start_main_~res~1_3, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_5|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8, ULTIMATE.start_main_#t~ret3=|v_ULTIMATE.start_main_#t~ret3_6|} AuxVars[] AssignedVars[ULTIMATE.start_main_~res~1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_#t~ret3] 144#L20 [44] L20-->recENTRY: Formula: (= |v_rec_#in~aInParam_2| v_ULTIMATE.start_main_~i~0_7) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} OutVars{rec_#in~a=|v_rec_#in~aInParam_2|} AuxVars[] AssignedVars[rec_#in~a]< 157#recENTRY [37] recENTRY-->L5: Formula: (= v_rec_~a_1 |v_rec_#in~a_1|) InVars {rec_#in~a=|v_rec_#in~a_1|} OutVars{rec_~a=v_rec_~a_1, rec_#in~a=|v_rec_#in~a_1|} AuxVars[] AssignedVars[rec_~a] 155#L5 [60] L5-->L8: Formula: (> 0 v_rec_~a_3) InVars {rec_~a=v_rec_~a_3} OutVars{rec_~a=v_rec_~a_3} AuxVars[] AssignedVars[] 139#L8 20.85/12.47 [2019-03-28 11:59:06,038 INFO L796 eck$LassoCheckResult]: Loop: 139#L8 [46] L8-->recENTRY: Formula: (= |v_rec_#in~aInParam_1| (+ v_rec_~a_5 (- 1))) InVars {rec_~a=v_rec_~a_5} OutVars{rec_#in~a=|v_rec_#in~aInParam_1|} AuxVars[] AssignedVars[rec_#in~a]< 138#recENTRY [37] recENTRY-->L5: Formula: (= v_rec_~a_1 |v_rec_#in~a_1|) InVars {rec_#in~a=|v_rec_#in~a_1|} OutVars{rec_~a=v_rec_~a_1, rec_#in~a=|v_rec_#in~a_1|} AuxVars[] AssignedVars[rec_~a] 140#L5 [60] L5-->L8: Formula: (> 0 v_rec_~a_3) InVars {rec_~a=v_rec_~a_3} OutVars{rec_~a=v_rec_~a_3} AuxVars[] AssignedVars[] 139#L8 20.85/12.47 [2019-03-28 11:59:06,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 20.85/12.47 [2019-03-28 11:59:06,039 INFO L82 PathProgramCache]: Analyzing trace with hash 2843845, now seen corresponding path program 1 times 20.85/12.47 [2019-03-28 11:59:06,039 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 20.85/12.47 [2019-03-28 11:59:06,040 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 20.85/12.47 [2019-03-28 11:59:06,040 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 20.85/12.47 [2019-03-28 11:59:06,041 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 20.85/12.47 [2019-03-28 11:59:06,041 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 20.85/12.47 [2019-03-28 11:59:06,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 20.85/12.47 [2019-03-28 11:59:06,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. 20.85/12.47 [2019-03-28 11:59:06,087 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. 20.85/12.47 [2019-03-28 11:59:06,087 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 20.85/12.47 [2019-03-28 11:59:06,089 INFO L799 eck$LassoCheckResult]: stem already infeasible 20.85/12.47 [2019-03-28 11:59:06,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 20.85/12.47 [2019-03-28 11:59:06,090 INFO L82 PathProgramCache]: Analyzing trace with hash 75204, now seen corresponding path program 1 times 20.85/12.47 [2019-03-28 11:59:06,090 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 20.85/12.47 [2019-03-28 11:59:06,090 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 20.85/12.47 [2019-03-28 11:59:06,091 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 20.85/12.47 [2019-03-28 11:59:06,091 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 20.85/12.47 [2019-03-28 11:59:06,091 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 20.85/12.47 [2019-03-28 11:59:06,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 20.85/12.47 [2019-03-28 11:59:06,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 20.85/12.47 [2019-03-28 11:59:06,140 INFO L216 LassoAnalysis]: Preferences: 20.85/12.47 [2019-03-28 11:59:06,140 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 20.85/12.47 [2019-03-28 11:59:06,140 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 20.85/12.47 [2019-03-28 11:59:06,140 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 20.85/12.47 [2019-03-28 11:59:06,141 INFO L127 ssoRankerPreferences]: Use exernal solver: true 20.85/12.47 [2019-03-28 11:59:06,141 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 20.85/12.47 [2019-03-28 11:59:06,141 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 20.85/12.47 [2019-03-28 11:59:06,141 INFO L130 ssoRankerPreferences]: Path of dumped script: 20.85/12.47 [2019-03-28 11:59:06,141 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop 20.85/12.47 [2019-03-28 11:59:06,141 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 20.85/12.47 [2019-03-28 11:59:06,141 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 20.85/12.47 [2019-03-28 11:59:06,143 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 20.85/12.47 [2019-03-28 11:59:06,153 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 20.85/12.47 [2019-03-28 11:59:06,156 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 20.85/12.47 [2019-03-28 11:59:06,157 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 20.85/12.47 [2019-03-28 11:59:06,160 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 20.85/12.47 [2019-03-28 11:59:06,163 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 20.85/12.47 [2019-03-28 11:59:06,203 INFO L300 LassoAnalysis]: Preprocessing complete. 20.85/12.47 [2019-03-28 11:59:06,203 INFO L412 LassoAnalysis]: Checking for nontermination... 20.85/12.47 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 20.85/12.47 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 20.85/12.47 Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 20.85/12.47 [2019-03-28 11:59:06,212 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 20.85/12.47 [2019-03-28 11:59:06,212 INFO L163 nArgumentSynthesizer]: Using integer mode. 20.85/12.47 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 20.85/12.47 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 20.85/12.47 [2019-03-28 11:59:06,248 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true 20.85/12.47 [2019-03-28 11:59:06,248 INFO L163 nArgumentSynthesizer]: Using integer mode. 20.85/12.47 Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 20.85/12.47 [2019-03-28 11:59:06,442 INFO L445 LassoAnalysis]: Proved nontermination for one component. 20.85/12.47 [2019-03-28 11:59:06,442 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_~a=-8, rec_#in~a=0} Honda state: {rec_~a=-8, rec_#in~a=0} Generalized eigenvectors: [{rec_~a=-1, rec_#in~a=-2}, {rec_~a=0, rec_#in~a=1}, {rec_~a=0, rec_#in~a=-8}] Lambdas: [1, 8, 0] Nus: [1, 1] 20.85/12.47 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 20.85/12.47 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 20.85/12.47 Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 20.85/12.47 [2019-03-28 11:59:06,473 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 20.85/12.47 [2019-03-28 11:59:06,474 INFO L163 nArgumentSynthesizer]: Using integer mode. 20.85/12.47 [2019-03-28 11:59:06,477 INFO L445 LassoAnalysis]: Proved nontermination for one component. 20.85/12.47 [2019-03-28 11:59:06,478 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_~res~0=0} Honda state: {rec_~res~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 20.85/12.47 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 20.85/12.47 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 20.85/12.47 Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 20.85/12.47 [2019-03-28 11:59:06,507 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 20.85/12.47 [2019-03-28 11:59:06,507 INFO L163 nArgumentSynthesizer]: Using integer mode. 20.85/12.47 [2019-03-28 11:59:06,511 INFO L445 LassoAnalysis]: Proved nontermination for one component. 20.85/12.47 [2019-03-28 11:59:06,511 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_#t~ret0=0} Honda state: {rec_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 20.85/12.47 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 20.85/12.47 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 20.85/12.47 Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 20.85/12.47 [2019-03-28 11:59:06,541 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 20.85/12.47 [2019-03-28 11:59:06,541 INFO L163 nArgumentSynthesizer]: Using integer mode. 20.85/12.47 [2019-03-28 11:59:06,545 INFO L445 LassoAnalysis]: Proved nontermination for one component. 20.85/12.47 [2019-03-28 11:59:06,545 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_~rescopy~0=0} Honda state: {rec_~rescopy~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 20.85/12.47 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 20.85/12.47 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 20.85/12.47 Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 20.85/12.47 [2019-03-28 11:59:06,575 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 20.85/12.47 [2019-03-28 11:59:06,576 INFO L163 nArgumentSynthesizer]: Using integer mode. 20.85/12.47 [2019-03-28 11:59:06,580 INFO L445 LassoAnalysis]: Proved nontermination for one component. 20.85/12.47 [2019-03-28 11:59:06,580 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_#res=0} Honda state: {rec_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 20.85/12.47 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 20.85/12.47 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 20.85/12.47 Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 20.85/12.47 [2019-03-28 11:59:06,615 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 20.85/12.47 [2019-03-28 11:59:06,616 INFO L163 nArgumentSynthesizer]: Using integer mode. 20.85/12.47 [2019-03-28 11:59:06,619 INFO L445 LassoAnalysis]: Proved nontermination for one component. 20.85/12.47 [2019-03-28 11:59:06,620 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_#t~post1=0} Honda state: {rec_#t~post1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 20.85/12.47 [2019-03-28 11:59:06,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. 20.85/12.47 [2019-03-28 11:59:06,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 20.85/12.47 [2019-03-28 11:59:06,649 INFO L87 Difference]: Start difference. First operand 33 states and 49 transitions. cyclomatic complexity: 22 Second operand 5 states. 20.85/12.47 [2019-03-28 11:59:06,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. 20.85/12.47 [2019-03-28 11:59:06,697 INFO L93 Difference]: Finished difference Result 43 states and 63 transitions. 20.85/12.47 [2019-03-28 11:59:06,697 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 20.85/12.47 [2019-03-28 11:59:06,700 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 63 transitions. 20.85/12.47 [2019-03-28 11:59:06,703 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 9 20.85/12.47 [2019-03-28 11:59:06,705 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 40 states and 60 transitions. 20.85/12.47 [2019-03-28 11:59:06,705 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 31 20.85/12.47 [2019-03-28 11:59:06,706 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 31 20.85/12.47 [2019-03-28 11:59:06,706 INFO L73 IsDeterministic]: Start isDeterministic. Operand 40 states and 60 transitions. 20.85/12.47 [2019-03-28 11:59:06,706 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. 20.85/12.47 [2019-03-28 11:59:06,707 INFO L706 BuchiCegarLoop]: Abstraction has 40 states and 60 transitions. 20.85/12.47 [2019-03-28 11:59:06,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states and 60 transitions. 20.85/12.47 [2019-03-28 11:59:06,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 36. 20.85/12.47 [2019-03-28 11:59:06,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. 20.85/12.47 [2019-03-28 11:59:06,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 54 transitions. 20.85/12.47 [2019-03-28 11:59:06,713 INFO L729 BuchiCegarLoop]: Abstraction has 36 states and 54 transitions. 20.85/12.47 [2019-03-28 11:59:06,713 INFO L609 BuchiCegarLoop]: Abstraction has 36 states and 54 transitions. 20.85/12.47 [2019-03-28 11:59:06,714 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ 20.85/12.47 [2019-03-28 11:59:06,714 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 36 states and 54 transitions. 20.85/12.47 [2019-03-28 11:59:06,715 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 8 20.85/12.47 [2019-03-28 11:59:06,715 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 20.85/12.47 [2019-03-28 11:59:06,715 INFO L119 BuchiIsEmpty]: Starting construction of run 20.85/12.47 [2019-03-28 11:59:06,716 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1] 20.85/12.47 [2019-03-28 11:59:06,716 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] 20.85/12.47 [2019-03-28 11:59:06,716 INFO L794 eck$LassoCheckResult]: Stem: 237#ULTIMATE.startENTRY [63] ULTIMATE.startENTRY-->L20: Formula: (< 0 v_ULTIMATE.start_main_~i~0_8) InVars {} OutVars{ULTIMATE.start_main_~res~1=v_ULTIMATE.start_main_~res~1_3, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_5|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8, ULTIMATE.start_main_#t~ret3=|v_ULTIMATE.start_main_#t~ret3_6|} AuxVars[] AssignedVars[ULTIMATE.start_main_~res~1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_#t~ret3] 225#L20 [44] L20-->recENTRY: Formula: (= |v_rec_#in~aInParam_2| v_ULTIMATE.start_main_~i~0_7) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} OutVars{rec_#in~a=|v_rec_#in~aInParam_2|} AuxVars[] AssignedVars[rec_#in~a]< 224#recENTRY [37] recENTRY-->L5: Formula: (= v_rec_~a_1 |v_rec_#in~a_1|) InVars {rec_#in~a=|v_rec_#in~a_1|} OutVars{rec_~a=v_rec_~a_1, rec_#in~a=|v_rec_#in~a_1|} AuxVars[] AssignedVars[rec_~a] 226#L5 [59] L5-->L8: Formula: (< 0 v_rec_~a_3) InVars {rec_~a=v_rec_~a_3} OutVars{rec_~a=v_rec_~a_3} AuxVars[] AssignedVars[] 232#L8 [46] L8-->recENTRY: Formula: (= |v_rec_#in~aInParam_1| (+ v_rec_~a_5 (- 1))) InVars {rec_~a=v_rec_~a_5} OutVars{rec_#in~a=|v_rec_#in~aInParam_1|} AuxVars[] AssignedVars[rec_#in~a]< 235#recENTRY [37] recENTRY-->L5: Formula: (= v_rec_~a_1 |v_rec_#in~a_1|) InVars {rec_#in~a=|v_rec_#in~a_1|} OutVars{rec_~a=v_rec_~a_1, rec_#in~a=|v_rec_#in~a_1|} AuxVars[] AssignedVars[rec_~a] 244#L5 [60] L5-->L8: Formula: (> 0 v_rec_~a_3) InVars {rec_~a=v_rec_~a_3} OutVars{rec_~a=v_rec_~a_3} AuxVars[] AssignedVars[] 230#L8 20.85/12.47 [2019-03-28 11:59:06,717 INFO L796 eck$LassoCheckResult]: Loop: 230#L8 [46] L8-->recENTRY: Formula: (= |v_rec_#in~aInParam_1| (+ v_rec_~a_5 (- 1))) InVars {rec_~a=v_rec_~a_5} OutVars{rec_#in~a=|v_rec_#in~aInParam_1|} AuxVars[] AssignedVars[rec_#in~a]< 234#recENTRY [37] recENTRY-->L5: Formula: (= v_rec_~a_1 |v_rec_#in~a_1|) InVars {rec_#in~a=|v_rec_#in~a_1|} OutVars{rec_~a=v_rec_~a_1, rec_#in~a=|v_rec_#in~a_1|} AuxVars[] AssignedVars[rec_~a] 246#L5 [60] L5-->L8: Formula: (> 0 v_rec_~a_3) InVars {rec_~a=v_rec_~a_3} OutVars{rec_~a=v_rec_~a_3} AuxVars[] AssignedVars[] 230#L8 20.85/12.47 [2019-03-28 11:59:06,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 20.85/12.47 [2019-03-28 11:59:06,717 INFO L82 PathProgramCache]: Analyzing trace with hash -1178343903, now seen corresponding path program 1 times 20.85/12.47 [2019-03-28 11:59:06,717 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 20.85/12.47 [2019-03-28 11:59:06,718 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 20.85/12.47 [2019-03-28 11:59:06,719 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 20.85/12.47 [2019-03-28 11:59:06,719 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 20.85/12.47 [2019-03-28 11:59:06,719 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 20.85/12.47 [2019-03-28 11:59:06,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 20.85/12.47 [2019-03-28 11:59:06,740 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. 20.85/12.47 [2019-03-28 11:59:06,740 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. 20.85/12.47 [2019-03-28 11:59:06,741 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 20.85/12.47 [2019-03-28 11:59:06,741 INFO L799 eck$LassoCheckResult]: stem already infeasible 20.85/12.47 [2019-03-28 11:59:06,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 20.85/12.47 [2019-03-28 11:59:06,741 INFO L82 PathProgramCache]: Analyzing trace with hash 75204, now seen corresponding path program 2 times 20.85/12.47 [2019-03-28 11:59:06,741 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 20.85/12.47 [2019-03-28 11:59:06,742 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 20.85/12.47 [2019-03-28 11:59:06,742 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 20.85/12.47 [2019-03-28 11:59:06,742 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 20.85/12.47 [2019-03-28 11:59:06,743 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 20.85/12.47 [2019-03-28 11:59:06,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 20.85/12.47 [2019-03-28 11:59:06,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 20.85/12.47 [2019-03-28 11:59:06,776 INFO L216 LassoAnalysis]: Preferences: 20.85/12.47 [2019-03-28 11:59:06,776 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 20.85/12.47 [2019-03-28 11:59:06,776 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 20.85/12.47 [2019-03-28 11:59:06,776 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 20.85/12.47 [2019-03-28 11:59:06,777 INFO L127 ssoRankerPreferences]: Use exernal solver: true 20.85/12.47 [2019-03-28 11:59:06,777 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 20.85/12.47 [2019-03-28 11:59:06,777 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 20.85/12.47 [2019-03-28 11:59:06,777 INFO L130 ssoRankerPreferences]: Path of dumped script: 20.85/12.47 [2019-03-28 11:59:06,777 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop 20.85/12.47 [2019-03-28 11:59:06,777 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 20.85/12.47 [2019-03-28 11:59:06,777 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 20.85/12.47 [2019-03-28 11:59:06,779 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 20.85/12.47 [2019-03-28 11:59:06,781 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 20.85/12.47 [2019-03-28 11:59:06,783 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 20.85/12.47 [2019-03-28 11:59:06,790 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 20.85/12.47 [2019-03-28 11:59:06,792 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 20.85/12.47 [2019-03-28 11:59:06,794 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 20.85/12.47 [2019-03-28 11:59:06,834 INFO L300 LassoAnalysis]: Preprocessing complete. 20.85/12.47 [2019-03-28 11:59:06,835 INFO L412 LassoAnalysis]: Checking for nontermination... 20.85/12.47 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 20.85/12.47 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 20.85/12.47 Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 20.85/12.47 [2019-03-28 11:59:06,839 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 20.85/12.47 [2019-03-28 11:59:06,839 INFO L163 nArgumentSynthesizer]: Using integer mode. 20.85/12.47 [2019-03-28 11:59:06,844 INFO L445 LassoAnalysis]: Proved nontermination for one component. 20.85/12.47 [2019-03-28 11:59:06,844 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_#t~ret0=0} Honda state: {rec_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 20.85/12.47 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 20.85/12.47 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 20.85/12.47 Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 20.85/12.47 [2019-03-28 11:59:06,875 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 20.85/12.47 [2019-03-28 11:59:06,876 INFO L163 nArgumentSynthesizer]: Using integer mode. 20.85/12.47 [2019-03-28 11:59:06,879 INFO L445 LassoAnalysis]: Proved nontermination for one component. 20.85/12.47 [2019-03-28 11:59:06,879 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_~res~0=0} Honda state: {rec_~res~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 20.85/12.47 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 20.85/12.47 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 20.85/12.47 Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 20.85/12.47 [2019-03-28 11:59:06,909 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 20.85/12.47 [2019-03-28 11:59:06,909 INFO L163 nArgumentSynthesizer]: Using integer mode. 20.85/12.47 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 20.85/12.47 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 20.85/12.47 Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 20.85/12.47 [2019-03-28 11:59:06,946 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true 20.85/12.47 [2019-03-28 11:59:06,946 INFO L163 nArgumentSynthesizer]: Using integer mode. 20.85/12.47 [2019-03-28 11:59:10,438 INFO L445 LassoAnalysis]: Proved nontermination for one component. 20.85/12.47 [2019-03-28 11:59:10,438 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_~a=-7, rec_#in~a=3} Honda state: {rec_~a=-7, rec_#in~a=3} Generalized eigenvectors: [{rec_~a=0, rec_#in~a=-2}, {rec_~a=-1, rec_#in~a=-1}, {rec_~a=0, rec_#in~a=-8}] Lambdas: [0, 1, 0] Nus: [0, 0] 20.85/12.47 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 20.85/12.47 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 20.85/12.47 Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 20.85/12.47 [2019-03-28 11:59:10,468 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 20.85/12.47 [2019-03-28 11:59:10,469 INFO L163 nArgumentSynthesizer]: Using integer mode. 20.85/12.47 [2019-03-28 11:59:10,472 INFO L445 LassoAnalysis]: Proved nontermination for one component. 20.85/12.47 [2019-03-28 11:59:10,472 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_#res=0} Honda state: {rec_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 20.85/12.47 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 20.85/12.47 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 20.85/12.47 Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 20.85/12.47 [2019-03-28 11:59:10,501 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 20.85/12.47 [2019-03-28 11:59:10,501 INFO L163 nArgumentSynthesizer]: Using integer mode. 20.85/12.47 [2019-03-28 11:59:10,505 INFO L445 LassoAnalysis]: Proved nontermination for one component. 20.85/12.47 [2019-03-28 11:59:10,505 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_~rescopy~0=0} Honda state: {rec_~rescopy~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 20.85/12.47 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 20.85/12.47 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 20.85/12.47 Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 20.85/12.47 [2019-03-28 11:59:10,534 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 20.85/12.47 [2019-03-28 11:59:10,535 INFO L163 nArgumentSynthesizer]: Using integer mode. 20.85/12.47 [2019-03-28 11:59:10,538 INFO L445 LassoAnalysis]: Proved nontermination for one component. 20.85/12.47 [2019-03-28 11:59:10,538 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_#t~post1=0} Honda state: {rec_#t~post1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 20.85/12.47 [2019-03-28 11:59:10,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. 20.85/12.47 [2019-03-28 11:59:10,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 20.85/12.47 [2019-03-28 11:59:10,563 INFO L87 Difference]: Start difference. First operand 36 states and 54 transitions. cyclomatic complexity: 25 Second operand 5 states. 20.85/12.47 [2019-03-28 11:59:10,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. 20.85/12.47 [2019-03-28 11:59:10,614 INFO L93 Difference]: Finished difference Result 17 states and 21 transitions. 20.85/12.47 [2019-03-28 11:59:10,614 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 20.85/12.47 [2019-03-28 11:59:10,616 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 21 transitions. 20.85/12.47 [2019-03-28 11:59:10,617 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 20.85/12.47 [2019-03-28 11:59:10,618 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 17 states and 21 transitions. 20.85/12.47 [2019-03-28 11:59:10,618 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 20.85/12.47 [2019-03-28 11:59:10,618 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 20.85/12.47 [2019-03-28 11:59:10,618 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 21 transitions. 20.85/12.47 [2019-03-28 11:59:10,619 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. 20.85/12.47 [2019-03-28 11:59:10,619 INFO L706 BuchiCegarLoop]: Abstraction has 17 states and 21 transitions. 20.85/12.47 [2019-03-28 11:59:10,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 21 transitions. 20.85/12.47 [2019-03-28 11:59:10,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. 20.85/12.47 [2019-03-28 11:59:10,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. 20.85/12.47 [2019-03-28 11:59:10,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 18 transitions. 20.85/12.47 [2019-03-28 11:59:10,621 INFO L729 BuchiCegarLoop]: Abstraction has 15 states and 18 transitions. 20.85/12.47 [2019-03-28 11:59:10,621 INFO L609 BuchiCegarLoop]: Abstraction has 15 states and 18 transitions. 20.85/12.47 [2019-03-28 11:59:10,621 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ 20.85/12.47 [2019-03-28 11:59:10,622 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 18 transitions. 20.85/12.47 [2019-03-28 11:59:10,623 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 20.85/12.47 [2019-03-28 11:59:10,623 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 20.85/12.47 [2019-03-28 11:59:10,623 INFO L119 BuchiIsEmpty]: Starting construction of run 20.85/12.47 [2019-03-28 11:59:10,624 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] 20.85/12.47 [2019-03-28 11:59:10,624 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] 20.85/12.47 [2019-03-28 11:59:10,625 INFO L794 eck$LassoCheckResult]: Stem: 298#ULTIMATE.startENTRY [63] ULTIMATE.startENTRY-->L20: Formula: (< 0 v_ULTIMATE.start_main_~i~0_8) InVars {} OutVars{ULTIMATE.start_main_~res~1=v_ULTIMATE.start_main_~res~1_3, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_5|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8, ULTIMATE.start_main_#t~ret3=|v_ULTIMATE.start_main_#t~ret3_6|} AuxVars[] AssignedVars[ULTIMATE.start_main_~res~1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_#t~ret3] 291#L20 [44] L20-->recENTRY: Formula: (= |v_rec_#in~aInParam_2| v_ULTIMATE.start_main_~i~0_7) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} OutVars{rec_#in~a=|v_rec_#in~aInParam_2|} AuxVars[] AssignedVars[rec_#in~a]< 290#recENTRY [37] recENTRY-->L5: Formula: (= v_rec_~a_1 |v_rec_#in~a_1|) InVars {rec_#in~a=|v_rec_#in~a_1|} OutVars{rec_~a=v_rec_~a_1, rec_#in~a=|v_rec_#in~a_1|} AuxVars[] AssignedVars[rec_~a] 292#L5 [59] L5-->L8: Formula: (< 0 v_rec_~a_3) InVars {rec_~a=v_rec_~a_3} OutVars{rec_~a=v_rec_~a_3} AuxVars[] AssignedVars[] 294#L8 [46] L8-->recENTRY: Formula: (= |v_rec_#in~aInParam_1| (+ v_rec_~a_5 (- 1))) InVars {rec_~a=v_rec_~a_5} OutVars{rec_#in~a=|v_rec_#in~aInParam_1|} AuxVars[] AssignedVars[rec_#in~a]< 293#recENTRY [37] recENTRY-->L5: Formula: (= v_rec_~a_1 |v_rec_#in~a_1|) InVars {rec_#in~a=|v_rec_#in~a_1|} OutVars{rec_~a=v_rec_~a_1, rec_#in~a=|v_rec_#in~a_1|} AuxVars[] AssignedVars[rec_~a] 296#L5 [41] L5-->recFINAL: Formula: (and (= 0 v_rec_~a_2) (= |v_rec_#res_1| 0)) InVars {rec_~a=v_rec_~a_2} OutVars{rec_~a=v_rec_~a_2, rec_#res=|v_rec_#res_1|} AuxVars[] AssignedVars[rec_#res] 304#recFINAL [52] recFINAL-->recEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 302#recEXIT >[55] recEXIT-->L8-1: AOR: Formula: (= |v_rec_#t~ret0_4| |v_rec_#resOutParam_1|) InVars {rec_#res=|v_rec_#resOutParam_1|} OutVars{rec_#t~ret0=|v_rec_#t~ret0_4|} AuxVars[] AssignedVars[rec_#t~ret0] LVA: Formula: (= |v_rec_#in~aInParam_1| (+ v_rec_~a_5 (- 1))) InVars {rec_~a=v_rec_~a_5} OutVars{rec_#in~a=|v_rec_#in~aInParam_1|} AuxVars[] AssignedVars[rec_#in~a] 303#L8-1 [50] L8-1-->L10-2: Formula: (and (= v_rec_~res~0_2 |v_rec_#t~ret0_3|) (= v_rec_~rescopy~0_1 v_rec_~res~0_2)) InVars {rec_#t~ret0=|v_rec_#t~ret0_3|} OutVars{rec_~rescopy~0=v_rec_~rescopy~0_1, rec_#t~ret0=|v_rec_#t~ret0_2|, rec_~res~0=v_rec_~res~0_2} AuxVars[] AssignedVars[rec_#t~ret0, rec_~rescopy~0, rec_~res~0] 299#L10-2 20.85/12.47 [2019-03-28 11:59:10,625 INFO L796 eck$LassoCheckResult]: Loop: 299#L10-2 [49] L10-2-->L10-2: Formula: (and (< 0 v_rec_~rescopy~0_4) (= v_rec_~rescopy~0_4 (+ v_rec_~rescopy~0_3 1))) InVars {rec_~rescopy~0=v_rec_~rescopy~0_4} OutVars{rec_~rescopy~0=v_rec_~rescopy~0_3, rec_#t~post1=|v_rec_#t~post1_1|} AuxVars[] AssignedVars[rec_~rescopy~0, rec_#t~post1] 299#L10-2 20.85/12.47 [2019-03-28 11:59:10,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 20.85/12.47 [2019-03-28 11:59:10,625 INFO L82 PathProgramCache]: Analyzing trace with hash -1276018367, now seen corresponding path program 1 times 20.85/12.47 [2019-03-28 11:59:10,625 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 20.85/12.47 [2019-03-28 11:59:10,626 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 20.85/12.47 [2019-03-28 11:59:10,626 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 20.85/12.47 [2019-03-28 11:59:10,627 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY 20.85/12.47 [2019-03-28 11:59:10,627 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 20.85/12.47 [2019-03-28 11:59:10,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 20.85/12.47 [2019-03-28 11:59:10,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 20.85/12.47 [2019-03-28 11:59:10,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 20.85/12.47 [2019-03-28 11:59:10,639 INFO L82 PathProgramCache]: Analyzing trace with hash 80, now seen corresponding path program 1 times 20.85/12.47 [2019-03-28 11:59:10,639 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 20.85/12.47 [2019-03-28 11:59:10,639 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 20.85/12.47 [2019-03-28 11:59:10,640 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 20.85/12.47 [2019-03-28 11:59:10,640 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 20.85/12.47 [2019-03-28 11:59:10,640 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 20.85/12.47 [2019-03-28 11:59:10,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 20.85/12.47 [2019-03-28 11:59:10,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 20.85/12.47 [2019-03-28 11:59:10,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 20.85/12.47 [2019-03-28 11:59:10,644 INFO L82 PathProgramCache]: Analyzing trace with hash -901863664, now seen corresponding path program 1 times 20.85/12.47 [2019-03-28 11:59:10,644 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 20.85/12.47 [2019-03-28 11:59:10,644 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 20.85/12.47 [2019-03-28 11:59:10,645 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 20.85/12.47 [2019-03-28 11:59:10,645 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 20.85/12.47 [2019-03-28 11:59:10,645 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 20.85/12.47 [2019-03-28 11:59:10,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 20.85/12.47 [2019-03-28 11:59:10,682 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. 20.85/12.47 [2019-03-28 11:59:10,683 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. 20.85/12.47 [2019-03-28 11:59:10,683 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 20.85/12.47 [2019-03-28 11:59:10,692 INFO L216 LassoAnalysis]: Preferences: 20.85/12.47 [2019-03-28 11:59:10,692 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 20.85/12.47 [2019-03-28 11:59:10,692 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 20.85/12.47 [2019-03-28 11:59:10,692 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 20.85/12.47 [2019-03-28 11:59:10,692 INFO L127 ssoRankerPreferences]: Use exernal solver: true 20.85/12.47 [2019-03-28 11:59:10,693 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 20.85/12.47 [2019-03-28 11:59:10,693 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 20.85/12.47 [2019-03-28 11:59:10,693 INFO L130 ssoRankerPreferences]: Path of dumped script: 20.85/12.47 [2019-03-28 11:59:10,693 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop 20.85/12.47 [2019-03-28 11:59:10,693 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 20.85/12.47 [2019-03-28 11:59:10,693 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 20.85/12.47 [2019-03-28 11:59:10,713 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 20.85/12.47 [2019-03-28 11:59:10,728 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 20.85/12.47 [2019-03-28 11:59:10,751 INFO L300 LassoAnalysis]: Preprocessing complete. 20.85/12.47 [2019-03-28 11:59:10,751 INFO L412 LassoAnalysis]: Checking for nontermination... 20.85/12.47 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 20.85/12.47 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 20.85/12.47 Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 20.85/12.47 [2019-03-28 11:59:10,756 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 20.85/12.47 [2019-03-28 11:59:10,756 INFO L163 nArgumentSynthesizer]: Using integer mode. 20.85/12.47 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 20.85/12.47 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 20.85/12.47 Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 20.85/12.47 [2019-03-28 11:59:10,797 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true 20.85/12.47 [2019-03-28 11:59:10,797 INFO L163 nArgumentSynthesizer]: Using integer mode. 20.85/12.47 [2019-03-28 11:59:10,828 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. 20.85/12.47 [2019-03-28 11:59:10,829 INFO L216 LassoAnalysis]: Preferences: 20.85/12.47 [2019-03-28 11:59:10,830 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 20.85/12.47 [2019-03-28 11:59:10,830 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 20.85/12.47 [2019-03-28 11:59:10,830 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 20.85/12.47 [2019-03-28 11:59:10,830 INFO L127 ssoRankerPreferences]: Use exernal solver: false 20.85/12.47 [2019-03-28 11:59:10,830 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 20.85/12.47 [2019-03-28 11:59:10,830 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 20.85/12.47 [2019-03-28 11:59:10,830 INFO L130 ssoRankerPreferences]: Path of dumped script: 20.85/12.47 [2019-03-28 11:59:10,830 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop 20.85/12.47 [2019-03-28 11:59:10,831 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 20.85/12.47 [2019-03-28 11:59:10,831 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 20.85/12.47 [2019-03-28 11:59:10,832 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 20.85/12.47 [2019-03-28 11:59:10,840 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 20.85/12.47 [2019-03-28 11:59:10,863 INFO L300 LassoAnalysis]: Preprocessing complete. 20.85/12.47 [2019-03-28 11:59:10,863 INFO L497 LassoAnalysis]: Using template 'affine'. 20.85/12.47 [2019-03-28 11:59:10,863 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 20.85/12.47 Termination analysis: LINEAR_WITH_GUESSES 20.85/12.47 Number of strict supporting invariants: 0 20.85/12.47 Number of non-strict supporting invariants: 1 20.85/12.47 Consider only non-deceasing supporting invariants: true 20.85/12.47 Simplify termination arguments: true 20.85/12.47 Simplify supporting invariants: trueOverapproximate stem: false 20.85/12.47 [2019-03-28 11:59:10,864 INFO L339 nArgumentSynthesizer]: Template has degree 0. 20.85/12.47 [2019-03-28 11:59:10,865 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 20.85/12.47 [2019-03-28 11:59:10,865 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 20.85/12.47 [2019-03-28 11:59:10,865 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 20.85/12.47 [2019-03-28 11:59:10,865 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 20.85/12.47 [2019-03-28 11:59:10,866 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 20.85/12.47 [2019-03-28 11:59:10,866 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 20.85/12.47 [2019-03-28 11:59:10,871 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. 20.85/12.47 [2019-03-28 11:59:10,874 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. 20.85/12.47 [2019-03-28 11:59:10,874 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. 20.85/12.47 [2019-03-28 11:59:10,874 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... 20.85/12.47 [2019-03-28 11:59:10,874 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. 20.85/12.47 [2019-03-28 11:59:10,875 INFO L518 LassoAnalysis]: Proved termination. 20.85/12.47 [2019-03-28 11:59:10,875 INFO L520 LassoAnalysis]: Termination argument consisting of: 20.85/12.47 Ranking function f(rec_~rescopy~0) = 1*rec_~rescopy~0 20.85/12.47 Supporting invariants [] 20.85/12.47 [2019-03-28 11:59:10,875 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed 20.85/12.47 [2019-03-28 11:59:10,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 20.85/12.47 [2019-03-28 11:59:10,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 20.85/12.47 [2019-03-28 11:59:10,918 INFO L256 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 6 conjunts are in the unsatisfiable core 20.85/12.47 [2019-03-28 11:59:10,920 INFO L279 TraceCheckSpWp]: Computing forward predicates... 20.85/12.47 [2019-03-28 11:59:10,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 20.85/12.47 [2019-03-28 11:59:10,957 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core 20.85/12.47 [2019-03-28 11:59:10,957 INFO L279 TraceCheckSpWp]: Computing forward predicates... 20.85/12.47 [2019-03-28 11:59:10,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. 20.85/12.47 [2019-03-28 11:59:10,983 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization 20.85/12.47 [2019-03-28 11:59:10,984 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.3 stem predicates 1 loop predicates 20.85/12.47 [2019-03-28 11:59:10,984 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 15 states and 18 transitions. cyclomatic complexity: 6 Second operand 3 states. 20.85/12.47 [2019-03-28 11:59:11,046 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 15 states and 18 transitions. cyclomatic complexity: 6. Second operand 3 states. Result 21 states and 27 transitions. Complement of second has 7 states. 20.85/12.47 [2019-03-28 11:59:11,047 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states 20.85/12.47 [2019-03-28 11:59:11,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. 20.85/12.47 [2019-03-28 11:59:11,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. 20.85/12.47 [2019-03-28 11:59:11,048 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 10 letters. Loop has 1 letters. 20.85/12.47 [2019-03-28 11:59:11,048 INFO L116 BuchiAccepts]: Finished buchiAccepts. 20.85/12.47 [2019-03-28 11:59:11,048 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 11 letters. Loop has 1 letters. 20.85/12.47 [2019-03-28 11:59:11,048 INFO L116 BuchiAccepts]: Finished buchiAccepts. 20.85/12.47 [2019-03-28 11:59:11,048 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 10 letters. Loop has 2 letters. 20.85/12.47 [2019-03-28 11:59:11,049 INFO L116 BuchiAccepts]: Finished buchiAccepts. 20.85/12.47 [2019-03-28 11:59:11,050 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 27 transitions. 20.85/12.47 [2019-03-28 11:59:11,051 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 20.85/12.47 [2019-03-28 11:59:11,051 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 0 states and 0 transitions. 20.85/12.47 [2019-03-28 11:59:11,051 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 20.85/12.47 [2019-03-28 11:59:11,052 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 20.85/12.47 [2019-03-28 11:59:11,052 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. 20.85/12.47 [2019-03-28 11:59:11,052 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. 20.85/12.47 [2019-03-28 11:59:11,052 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. 20.85/12.47 [2019-03-28 11:59:11,052 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. 20.85/12.47 [2019-03-28 11:59:11,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. 20.85/12.47 [2019-03-28 11:59:11,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 20.85/12.47 [2019-03-28 11:59:11,053 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 5 states. 20.85/12.47 [2019-03-28 11:59:11,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. 20.85/12.47 [2019-03-28 11:59:11,053 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. 20.85/12.47 [2019-03-28 11:59:11,053 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 20.85/12.47 [2019-03-28 11:59:11,054 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. 20.85/12.47 [2019-03-28 11:59:11,054 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 20.85/12.47 [2019-03-28 11:59:11,055 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. 20.85/12.47 [2019-03-28 11:59:11,055 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 20.85/12.47 [2019-03-28 11:59:11,055 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 20.85/12.47 [2019-03-28 11:59:11,055 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. 20.85/12.47 [2019-03-28 11:59:11,055 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. 20.85/12.47 [2019-03-28 11:59:11,055 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. 20.85/12.47 [2019-03-28 11:59:11,055 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. 20.85/12.47 [2019-03-28 11:59:11,055 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. 20.85/12.47 [2019-03-28 11:59:11,056 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ 20.85/12.47 [2019-03-28 11:59:11,056 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. 20.85/12.47 [2019-03-28 11:59:11,056 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 20.85/12.47 [2019-03-28 11:59:11,056 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true 20.85/12.47 [2019-03-28 11:59:11,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.03 11:59:11 BasicIcfg 20.85/12.47 [2019-03-28 11:59:11,062 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- 20.85/12.47 [2019-03-28 11:59:11,063 INFO L168 Benchmark]: Toolchain (without parser) took 6978.68 ms. Allocated memory was 649.6 MB in the beginning and 759.2 MB in the end (delta: 109.6 MB). Free memory was 564.8 MB in the beginning and 668.6 MB in the end (delta: -103.8 MB). Peak memory consumption was 5.7 MB. Max. memory is 50.3 GB. 20.85/12.47 [2019-03-28 11:59:11,064 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 649.6 MB. Free memory is still 585.5 MB. There was no memory consumed. Max. memory is 50.3 GB. 20.85/12.47 [2019-03-28 11:59:11,065 INFO L168 Benchmark]: CACSL2BoogieTranslator took 242.72 ms. Allocated memory is still 649.6 MB. Free memory was 564.8 MB in the beginning and 554.9 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 50.3 GB. 20.85/12.47 [2019-03-28 11:59:11,065 INFO L168 Benchmark]: Boogie Procedure Inliner took 92.11 ms. Allocated memory was 649.6 MB in the beginning and 688.9 MB in the end (delta: 39.3 MB). Free memory was 554.9 MB in the beginning and 656.9 MB in the end (delta: -102.0 MB). Peak memory consumption was 21.3 MB. Max. memory is 50.3 GB. 20.85/12.47 [2019-03-28 11:59:11,066 INFO L168 Benchmark]: Boogie Preprocessor took 40.26 ms. Allocated memory is still 688.9 MB. Free memory was 656.9 MB in the beginning and 653.0 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 50.3 GB. 20.85/12.47 [2019-03-28 11:59:11,067 INFO L168 Benchmark]: RCFGBuilder took 208.14 ms. Allocated memory is still 688.9 MB. Free memory was 653.0 MB in the beginning and 639.5 MB in the end (delta: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 50.3 GB. 20.85/12.47 [2019-03-28 11:59:11,067 INFO L168 Benchmark]: BlockEncodingV2 took 81.88 ms. Allocated memory is still 688.9 MB. Free memory was 639.5 MB in the beginning and 634.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. 20.85/12.47 [2019-03-28 11:59:11,068 INFO L168 Benchmark]: TraceAbstraction took 171.97 ms. Allocated memory is still 688.9 MB. Free memory was 633.0 MB in the beginning and 623.1 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 50.3 GB. 20.85/12.47 [2019-03-28 11:59:11,068 INFO L168 Benchmark]: BuchiAutomizer took 6136.24 ms. Allocated memory was 688.9 MB in the beginning and 759.2 MB in the end (delta: 70.3 MB). Free memory was 623.1 MB in the beginning and 668.6 MB in the end (delta: -45.5 MB). Peak memory consumption was 24.8 MB. Max. memory is 50.3 GB. 20.85/12.47 [2019-03-28 11:59:11,072 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### 20.85/12.47 --- Results --- 20.85/12.47 * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: 20.85/12.47 - StatisticsResult: Initial Icfg 20.85/12.47 15 locations, 19 edges 20.85/12.47 - StatisticsResult: Encoded RCFG 20.85/12.47 9 locations, 12 edges 20.85/12.47 * Results from de.uni_freiburg.informatik.ultimate.core: 20.85/12.47 - StatisticsResult: Toolchain Benchmarks 20.85/12.47 Benchmark results are: 20.85/12.47 * CDTParser took 0.16 ms. Allocated memory is still 649.6 MB. Free memory is still 585.5 MB. There was no memory consumed. Max. memory is 50.3 GB. 20.85/12.47 * CACSL2BoogieTranslator took 242.72 ms. Allocated memory is still 649.6 MB. Free memory was 564.8 MB in the beginning and 554.9 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 50.3 GB. 20.85/12.47 * Boogie Procedure Inliner took 92.11 ms. Allocated memory was 649.6 MB in the beginning and 688.9 MB in the end (delta: 39.3 MB). Free memory was 554.9 MB in the beginning and 656.9 MB in the end (delta: -102.0 MB). Peak memory consumption was 21.3 MB. Max. memory is 50.3 GB. 20.85/12.47 * Boogie Preprocessor took 40.26 ms. Allocated memory is still 688.9 MB. Free memory was 656.9 MB in the beginning and 653.0 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 50.3 GB. 20.85/12.47 * RCFGBuilder took 208.14 ms. Allocated memory is still 688.9 MB. Free memory was 653.0 MB in the beginning and 639.5 MB in the end (delta: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 50.3 GB. 20.85/12.47 * BlockEncodingV2 took 81.88 ms. Allocated memory is still 688.9 MB. Free memory was 639.5 MB in the beginning and 634.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. 20.85/12.47 * TraceAbstraction took 171.97 ms. Allocated memory is still 688.9 MB. Free memory was 633.0 MB in the beginning and 623.1 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 50.3 GB. 20.85/12.47 * BuchiAutomizer took 6136.24 ms. Allocated memory was 688.9 MB in the beginning and 759.2 MB in the end (delta: 70.3 MB). Free memory was 623.1 MB in the beginning and 668.6 MB in the end (delta: -45.5 MB). Peak memory consumption was 24.8 MB. Max. memory is 50.3 GB. 20.85/12.47 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: 20.85/12.47 - AllSpecificationsHoldResult: All specifications hold 20.85/12.47 We were not able to verify any specifiation because the program does not contain any specification. 20.85/12.47 - InvariantResult [Line: 10]: Loop Invariant 20.85/12.47 Derived loop invariant: 1 20.85/12.47 - StatisticsResult: Ultimate Automizer benchmark data 20.85/12.47 CFG has 2 procedures, 9 locations, 0 error locations. SAFE Result, 0.0s OverallTime, 0 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 7 PreInvPairs, 7 NumberOfFragments, 4 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available 20.85/12.47 - StatisticsResult: Constructed decomposition of program 20.85/12.47 Your program was decomposed into 5 terminating modules (3 trivial, 0 deterministic, 2 nondeterministic). One nondeterministic module has affine ranking function \old(a) and consists of 6 locations. One nondeterministic module has affine ranking function rescopy and consists of 4 locations. 3 modules have a trivial ranking function, the largest among these consists of 5 locations. 20.85/12.47 - StatisticsResult: Timing statistics 20.85/12.47 BüchiAutomizer plugin needed 6.0s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 5.3s. Construction of modules took 0.1s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 12 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 36 states and ocurred in iteration 2. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 57 SDtfs, 79 SDslu, 67 SDs, 0 SdLazy, 73 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT1 SILN2 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital11 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq165 hnf92 smp100 dnf100 smp100 tf112 neg100 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 9ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 15 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 4.0s 20.85/12.47 - TerminationAnalysisResult: Termination proven 20.85/12.47 Buchi Automizer proved that your program is terminating 20.85/12.47 RESULT: Ultimate proved your program to be correct! 20.85/12.47 !SESSION 2019-03-28 11:59:00.340 ----------------------------------------------- 20.85/12.47 eclipse.buildId=unknown 20.85/12.47 java.version=1.8.0_181 20.85/12.47 java.vendor=Oracle Corporation 20.85/12.47 BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US 20.85/12.47 Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox2/benchmark/theBenchmark.c 20.85/12.47 Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox2/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c 20.85/12.47 20.85/12.47 !ENTRY org.eclipse.core.resources 2 10035 2019-03-28 11:59:11.304 20.85/12.47 !MESSAGE The workspace will exit with unsaved changes in this session. 20.85/12.47 Received shutdown request... 20.85/12.47 Ultimate: 20.85/12.47 GTK+ Version Check 20.85/12.47 EOF