14.20/6.62 YES 14.20/6.62 14.20/6.62 Ultimate: Cannot open display: 14.20/6.62 This is Ultimate 0.1.24-8dc7c08-m 14.20/6.62 [2019-03-28 22:22:16,486 INFO L170 SettingsManager]: Resetting all preferences to default values... 14.20/6.62 [2019-03-28 22:22:16,488 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values 14.20/6.62 [2019-03-28 22:22:16,499 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 14.20/6.62 [2019-03-28 22:22:16,499 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values 14.20/6.62 [2019-03-28 22:22:16,500 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values 14.20/6.62 [2019-03-28 22:22:16,502 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values 14.20/6.62 [2019-03-28 22:22:16,503 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values 14.20/6.62 [2019-03-28 22:22:16,505 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values 14.20/6.62 [2019-03-28 22:22:16,505 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values 14.20/6.62 [2019-03-28 22:22:16,506 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 14.20/6.62 [2019-03-28 22:22:16,506 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values 14.20/6.62 [2019-03-28 22:22:16,507 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values 14.20/6.62 [2019-03-28 22:22:16,508 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values 14.20/6.62 [2019-03-28 22:22:16,509 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values 14.20/6.62 [2019-03-28 22:22:16,510 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values 14.20/6.62 [2019-03-28 22:22:16,511 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values 14.20/6.62 [2019-03-28 22:22:16,512 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values 14.20/6.62 [2019-03-28 22:22:16,514 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values 14.20/6.62 [2019-03-28 22:22:16,516 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values 14.20/6.62 [2019-03-28 22:22:16,517 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values 14.20/6.62 [2019-03-28 22:22:16,518 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values 14.20/6.62 [2019-03-28 22:22:16,520 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 14.20/6.62 [2019-03-28 22:22:16,520 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... 14.20/6.62 [2019-03-28 22:22:16,520 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values 14.20/6.62 [2019-03-28 22:22:16,521 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values 14.20/6.62 [2019-03-28 22:22:16,521 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values 14.20/6.62 [2019-03-28 22:22:16,522 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... 14.20/6.62 [2019-03-28 22:22:16,522 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values 14.20/6.62 [2019-03-28 22:22:16,523 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values 14.20/6.62 [2019-03-28 22:22:16,524 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values 14.20/6.62 [2019-03-28 22:22:16,524 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values 14.20/6.62 [2019-03-28 22:22:16,525 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... 14.20/6.62 [2019-03-28 22:22:16,526 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values 14.20/6.62 [2019-03-28 22:22:16,526 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 14.20/6.62 [2019-03-28 22:22:16,526 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... 14.20/6.62 [2019-03-28 22:22:16,527 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values 14.20/6.62 [2019-03-28 22:22:16,528 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values 14.20/6.62 [2019-03-28 22:22:16,528 INFO L181 SettingsManager]: Finished resetting all preferences to default values... 14.20/6.62 [2019-03-28 22:22:16,529 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf 14.20/6.62 [2019-03-28 22:22:16,543 INFO L110 SettingsManager]: Loading preferences was successful 14.20/6.62 [2019-03-28 22:22:16,543 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: 14.20/6.62 [2019-03-28 22:22:16,544 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: 14.20/6.62 [2019-03-28 22:22:16,545 INFO L133 SettingsManager]: * Rewrite not-equals=true 14.20/6.62 [2019-03-28 22:22:16,545 INFO L133 SettingsManager]: * Create parallel compositions if possible=false 14.20/6.62 [2019-03-28 22:22:16,545 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE 14.20/6.62 [2019-03-28 22:22:16,545 INFO L133 SettingsManager]: * Use SBE=true 14.20/6.62 [2019-03-28 22:22:16,545 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: 14.20/6.62 [2019-03-28 22:22:16,545 INFO L133 SettingsManager]: * Use old map elimination=false 14.20/6.62 [2019-03-28 22:22:16,546 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false 14.20/6.62 [2019-03-28 22:22:16,546 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION 14.20/6.62 [2019-03-28 22:22:16,546 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true 14.20/6.62 [2019-03-28 22:22:16,546 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES 14.20/6.62 [2019-03-28 22:22:16,546 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true 14.20/6.62 [2019-03-28 22:22:16,546 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 14.20/6.62 [2019-03-28 22:22:16,547 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: 14.20/6.62 [2019-03-28 22:22:16,547 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false 14.20/6.62 [2019-03-28 22:22:16,547 INFO L133 SettingsManager]: * Check division by zero=IGNORE 14.20/6.62 [2019-03-28 22:22:16,547 INFO L133 SettingsManager]: * Check if freed pointer was valid=false 14.20/6.62 [2019-03-28 22:22:16,547 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false 14.20/6.62 [2019-03-28 22:22:16,548 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE 14.20/6.62 [2019-03-28 22:22:16,548 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: 14.20/6.62 [2019-03-28 22:22:16,548 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements 14.20/6.62 [2019-03-28 22:22:16,548 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump 14.20/6.62 [2019-03-28 22:22:16,548 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 14.20/6.62 [2019-03-28 22:22:16,548 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: 14.20/6.62 [2019-03-28 22:22:16,549 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles 14.20/6.62 [2019-03-28 22:22:16,549 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL 14.20/6.62 [2019-03-28 22:22:16,549 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 14.20/6.62 [2019-03-28 22:22:16,575 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp 14.20/6.62 [2019-03-28 22:22:16,589 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized 14.20/6.62 [2019-03-28 22:22:16,593 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. 14.20/6.62 [2019-03-28 22:22:16,594 INFO L271 PluginConnector]: Initializing CDTParser... 14.20/6.62 [2019-03-28 22:22:16,595 INFO L276 PluginConnector]: CDTParser initialized 14.20/6.62 [2019-03-28 22:22:16,595 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c 14.20/6.62 [2019-03-28 22:22:16,664 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/0203d33750db4aa994f8f85d0b3204af/FLAG61bd54009 14.20/6.62 [2019-03-28 22:22:17,005 INFO L307 CDTParser]: Found 1 translation units. 14.20/6.62 [2019-03-28 22:22:17,006 INFO L161 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c 14.20/6.62 [2019-03-28 22:22:17,012 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/0203d33750db4aa994f8f85d0b3204af/FLAG61bd54009 14.20/6.62 [2019-03-28 22:22:17,414 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/0203d33750db4aa994f8f85d0b3204af 14.20/6.62 [2019-03-28 22:22:17,426 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### 14.20/6.62 [2019-03-28 22:22:17,427 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. 14.20/6.62 [2019-03-28 22:22:17,429 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- 14.20/6.62 [2019-03-28 22:22:17,429 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... 14.20/6.62 [2019-03-28 22:22:17,432 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized 14.20/6.62 [2019-03-28 22:22:17,433 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.03 10:22:17" (1/1) ... 14.20/6.62 [2019-03-28 22:22:17,437 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7149913d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:22:17, skipping insertion in model container 14.20/6.62 [2019-03-28 22:22:17,437 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.03 10:22:17" (1/1) ... 14.20/6.62 [2019-03-28 22:22:17,445 INFO L145 MainTranslator]: Starting translation in SV-COMP mode 14.20/6.62 [2019-03-28 22:22:17,462 INFO L176 MainTranslator]: Built tables and reachable declarations 14.20/6.62 [2019-03-28 22:22:17,614 INFO L206 PostProcessor]: Analyzing one entry point: main 14.20/6.62 [2019-03-28 22:22:17,619 INFO L191 MainTranslator]: Completed pre-run 14.20/6.62 [2019-03-28 22:22:17,634 INFO L206 PostProcessor]: Analyzing one entry point: main 14.20/6.62 [2019-03-28 22:22:17,704 INFO L195 MainTranslator]: Completed translation 14.20/6.62 [2019-03-28 22:22:17,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:22:17 WrapperNode 14.20/6.63 [2019-03-28 22:22:17,705 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- 14.20/6.63 [2019-03-28 22:22:17,706 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- 14.20/6.63 [2019-03-28 22:22:17,706 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... 14.20/6.63 [2019-03-28 22:22:17,706 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized 14.20/6.63 [2019-03-28 22:22:17,716 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:22:17" (1/1) ... 14.20/6.63 [2019-03-28 22:22:17,721 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:22:17" (1/1) ... 14.20/6.63 [2019-03-28 22:22:17,740 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- 14.20/6.63 [2019-03-28 22:22:17,740 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- 14.20/6.63 [2019-03-28 22:22:17,741 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... 14.20/6.63 [2019-03-28 22:22:17,741 INFO L276 PluginConnector]: Boogie Preprocessor initialized 14.20/6.63 [2019-03-28 22:22:17,750 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:22:17" (1/1) ... 14.20/6.63 [2019-03-28 22:22:17,750 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:22:17" (1/1) ... 14.20/6.63 [2019-03-28 22:22:17,751 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:22:17" (1/1) ... 14.20/6.63 [2019-03-28 22:22:17,751 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:22:17" (1/1) ... 14.20/6.63 [2019-03-28 22:22:17,753 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:22:17" (1/1) ... 14.20/6.63 [2019-03-28 22:22:17,758 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:22:17" (1/1) ... 14.20/6.63 [2019-03-28 22:22:17,758 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:22:17" (1/1) ... 14.20/6.63 [2019-03-28 22:22:17,760 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- 14.20/6.63 [2019-03-28 22:22:17,760 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- 14.20/6.63 [2019-03-28 22:22:17,760 INFO L271 PluginConnector]: Initializing RCFGBuilder... 14.20/6.63 [2019-03-28 22:22:17,760 INFO L276 PluginConnector]: RCFGBuilder initialized 14.20/6.63 [2019-03-28 22:22:17,761 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:22:17" (1/1) ... 14.20/6.63 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 14.20/6.63 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) 14.20/6.63 Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 14.20/6.63 [2019-03-28 22:22:17,822 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start 14.20/6.63 [2019-03-28 22:22:17,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start 14.20/6.63 [2019-03-28 22:22:17,944 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) 14.20/6.63 [2019-03-28 22:22:17,944 INFO L286 CfgBuilder]: Removed 6 assue(true) statements. 14.20/6.63 [2019-03-28 22:22:17,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 10:22:17 BoogieIcfgContainer 14.20/6.63 [2019-03-28 22:22:17,946 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- 14.20/6.63 [2019-03-28 22:22:17,946 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- 14.20/6.63 [2019-03-28 22:22:17,946 INFO L271 PluginConnector]: Initializing BlockEncodingV2... 14.20/6.63 [2019-03-28 22:22:17,948 INFO L276 PluginConnector]: BlockEncodingV2 initialized 14.20/6.63 [2019-03-28 22:22:17,949 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 10:22:17" (1/1) ... 14.20/6.63 [2019-03-28 22:22:17,963 INFO L313 BlockEncoder]: Initial Icfg 8 locations, 11 edges 14.20/6.63 [2019-03-28 22:22:17,964 INFO L258 BlockEncoder]: Using Remove infeasible edges 14.20/6.63 [2019-03-28 22:22:17,965 INFO L263 BlockEncoder]: Using Maximize final states 14.20/6.63 [2019-03-28 22:22:17,966 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false 14.20/6.63 [2019-03-28 22:22:17,966 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE 14.20/6.63 [2019-03-28 22:22:17,968 INFO L296 BlockEncoder]: Using Remove sink states 14.20/6.63 [2019-03-28 22:22:17,969 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true 14.20/6.63 [2019-03-28 22:22:17,969 INFO L179 BlockEncoder]: Using Rewrite not-equals 14.20/6.63 [2019-03-28 22:22:17,983 INFO L185 BlockEncoder]: Using Use SBE 14.20/6.63 [2019-03-28 22:22:17,990 INFO L200 BlockEncoder]: SBE split 0 edges 14.20/6.63 [2019-03-28 22:22:17,995 INFO L70 emoveInfeasibleEdges]: Removed 2 edges and 0 locations because of local infeasibility 14.20/6.63 [2019-03-28 22:22:17,997 INFO L71 MaximizeFinalStates]: 0 new accepting states 14.20/6.63 [2019-03-28 22:22:18,011 INFO L100 BaseMinimizeStates]: Removed 8 edges and 4 locations by large block encoding 14.20/6.63 [2019-03-28 22:22:18,013 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states 14.20/6.63 [2019-03-28 22:22:18,014 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility 14.20/6.63 [2019-03-28 22:22:18,014 INFO L71 MaximizeFinalStates]: 0 new accepting states 14.20/6.63 [2019-03-28 22:22:18,015 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding 14.20/6.63 [2019-03-28 22:22:18,015 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states 14.20/6.63 [2019-03-28 22:22:18,015 INFO L313 BlockEncoder]: Encoded RCFG 3 locations, 4 edges 14.20/6.63 [2019-03-28 22:22:18,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 28.03 10:22:18 BasicIcfg 14.20/6.63 [2019-03-28 22:22:18,016 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- 14.20/6.63 [2019-03-28 22:22:18,017 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- 14.20/6.63 [2019-03-28 22:22:18,017 INFO L271 PluginConnector]: Initializing TraceAbstraction... 14.20/6.63 [2019-03-28 22:22:18,020 INFO L276 PluginConnector]: TraceAbstraction initialized 14.20/6.63 [2019-03-28 22:22:18,020 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.03 10:22:17" (1/4) ... 14.20/6.63 [2019-03-28 22:22:18,021 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@743c696b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.03 10:22:18, skipping insertion in model container 14.20/6.63 [2019-03-28 22:22:18,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:22:17" (2/4) ... 14.20/6.63 [2019-03-28 22:22:18,022 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@743c696b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.03 10:22:18, skipping insertion in model container 14.20/6.63 [2019-03-28 22:22:18,022 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 10:22:17" (3/4) ... 14.20/6.63 [2019-03-28 22:22:18,022 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@743c696b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.03 10:22:18, skipping insertion in model container 14.20/6.63 [2019-03-28 22:22:18,022 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 28.03 10:22:18" (4/4) ... 14.20/6.63 [2019-03-28 22:22:18,024 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 14.20/6.63 [2019-03-28 22:22:18,034 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION 14.20/6.63 [2019-03-28 22:22:18,041 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. 14.20/6.63 [2019-03-28 22:22:18,058 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. 14.20/6.63 [2019-03-28 22:22:18,087 INFO L133 ementStrategyFactory]: Using default assertion order modulation 14.20/6.63 [2019-03-28 22:22:18,088 INFO L382 AbstractCegarLoop]: Interprodecural is true 14.20/6.63 [2019-03-28 22:22:18,088 INFO L383 AbstractCegarLoop]: Hoare is true 14.20/6.63 [2019-03-28 22:22:18,088 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates 14.20/6.63 [2019-03-28 22:22:18,089 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE 14.20/6.63 [2019-03-28 22:22:18,089 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION 14.20/6.63 [2019-03-28 22:22:18,089 INFO L387 AbstractCegarLoop]: Difference is false 14.20/6.63 [2019-03-28 22:22:18,089 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA 14.20/6.63 [2019-03-28 22:22:18,089 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== 14.20/6.63 [2019-03-28 22:22:18,103 INFO L276 IsEmpty]: Start isEmpty. Operand 3 states. 14.20/6.63 [2019-03-28 22:22:18,109 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. 14.20/6.63 [2019-03-28 22:22:18,112 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. 14.20/6.63 [2019-03-28 22:22:18,162 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. 14.20/6.63 [2019-03-28 22:22:18,162 INFO L451 ceAbstractionStarter]: At program point L12-2(lines 12 14) the Hoare annotation is: true 14.20/6.63 [2019-03-28 22:22:18,163 INFO L451 ceAbstractionStarter]: At program point L10-2(lines 10 16) the Hoare annotation is: true 14.20/6.63 [2019-03-28 22:22:18,171 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.03 10:22:18 BasicIcfg 14.20/6.63 [2019-03-28 22:22:18,171 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- 14.20/6.63 [2019-03-28 22:22:18,172 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- 14.20/6.63 [2019-03-28 22:22:18,172 INFO L271 PluginConnector]: Initializing BuchiAutomizer... 14.20/6.63 [2019-03-28 22:22:18,175 INFO L276 PluginConnector]: BuchiAutomizer initialized 14.20/6.63 [2019-03-28 22:22:18,177 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 14.20/6.63 [2019-03-28 22:22:18,177 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.03 10:22:17" (1/5) ... 14.20/6.63 [2019-03-28 22:22:18,178 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@a0922f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.03 10:22:18, skipping insertion in model container 14.20/6.63 [2019-03-28 22:22:18,178 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 14.20/6.63 [2019-03-28 22:22:18,178 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:22:17" (2/5) ... 14.20/6.63 [2019-03-28 22:22:18,178 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@a0922f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.03 10:22:18, skipping insertion in model container 14.20/6.63 [2019-03-28 22:22:18,178 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 14.20/6.63 [2019-03-28 22:22:18,179 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 10:22:17" (3/5) ... 14.20/6.63 [2019-03-28 22:22:18,179 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@a0922f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.03 10:22:18, skipping insertion in model container 14.20/6.63 [2019-03-28 22:22:18,179 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 14.20/6.63 [2019-03-28 22:22:18,179 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 28.03 10:22:18" (4/5) ... 14.20/6.63 [2019-03-28 22:22:18,180 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@a0922f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.03 10:22:18, skipping insertion in model container 14.20/6.63 [2019-03-28 22:22:18,180 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 14.20/6.63 [2019-03-28 22:22:18,180 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.03 10:22:18" (5/5) ... 14.20/6.63 [2019-03-28 22:22:18,182 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 14.20/6.63 [2019-03-28 22:22:18,210 INFO L133 ementStrategyFactory]: Using default assertion order modulation 14.20/6.63 [2019-03-28 22:22:18,210 INFO L374 BuchiCegarLoop]: Interprodecural is true 14.20/6.63 [2019-03-28 22:22:18,210 INFO L375 BuchiCegarLoop]: Hoare is true 14.20/6.63 [2019-03-28 22:22:18,211 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates 14.20/6.63 [2019-03-28 22:22:18,211 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE 14.20/6.63 [2019-03-28 22:22:18,211 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION 14.20/6.63 [2019-03-28 22:22:18,211 INFO L379 BuchiCegarLoop]: Difference is false 14.20/6.63 [2019-03-28 22:22:18,211 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA 14.20/6.63 [2019-03-28 22:22:18,212 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== 14.20/6.63 [2019-03-28 22:22:18,215 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. 14.20/6.63 [2019-03-28 22:22:18,232 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 14.20/6.63 [2019-03-28 22:22:18,233 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 14.20/6.63 [2019-03-28 22:22:18,233 INFO L119 BuchiIsEmpty]: Starting construction of run 14.20/6.63 [2019-03-28 22:22:18,238 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] 14.20/6.63 [2019-03-28 22:22:18,238 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] 14.20/6.63 [2019-03-28 22:22:18,238 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ 14.20/6.63 [2019-03-28 22:22:18,239 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. 14.20/6.63 [2019-03-28 22:22:18,239 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 14.20/6.63 [2019-03-28 22:22:18,239 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 14.20/6.63 [2019-03-28 22:22:18,239 INFO L119 BuchiIsEmpty]: Starting construction of run 14.20/6.63 [2019-03-28 22:22:18,240 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] 14.20/6.63 [2019-03-28 22:22:18,240 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] 14.20/6.63 [2019-03-28 22:22:18,245 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [34] ULTIMATE.startENTRY-->L10-2: Formula: (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[|v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 5#L10-2true 14.20/6.63 [2019-03-28 22:22:18,245 INFO L796 eck$LassoCheckResult]: Loop: 5#L10-2true [39] L10-2-->L12-2: Formula: (and (< 0 v_ULTIMATE.start_main_~x~0_11) (= v_ULTIMATE.start_main_~y~0_7 0)) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0] 3#L12-2true [45] L12-2-->L10-2: Formula: (and (<= v_ULTIMATE.start_main_~x~0_14 v_ULTIMATE.start_main_~y~0_8) (= (+ v_ULTIMATE.start_main_~x~0_14 (- 1)) v_ULTIMATE.start_main_~x~0_13)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_14} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_13} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 5#L10-2true 14.20/6.63 [2019-03-28 22:22:18,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 14.20/6.63 [2019-03-28 22:22:18,252 INFO L82 PathProgramCache]: Analyzing trace with hash 65, now seen corresponding path program 1 times 14.20/6.63 [2019-03-28 22:22:18,254 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 14.20/6.63 [2019-03-28 22:22:18,255 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 14.20/6.63 [2019-03-28 22:22:18,283 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 14.20/6.63 [2019-03-28 22:22:18,284 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 14.20/6.63 [2019-03-28 22:22:18,284 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 14.20/6.63 [2019-03-28 22:22:18,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 14.20/6.63 [2019-03-28 22:22:18,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 14.20/6.63 [2019-03-28 22:22:18,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 14.20/6.63 [2019-03-28 22:22:18,326 INFO L82 PathProgramCache]: Analyzing trace with hash 2215, now seen corresponding path program 1 times 14.20/6.63 [2019-03-28 22:22:18,326 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 14.20/6.63 [2019-03-28 22:22:18,326 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 14.20/6.63 [2019-03-28 22:22:18,328 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 14.20/6.63 [2019-03-28 22:22:18,328 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 14.20/6.63 [2019-03-28 22:22:18,328 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 14.20/6.63 [2019-03-28 22:22:18,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 14.20/6.63 [2019-03-28 22:22:18,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. 14.20/6.63 [2019-03-28 22:22:18,378 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. 14.20/6.63 [2019-03-28 22:22:18,379 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 14.20/6.63 [2019-03-28 22:22:18,384 INFO L811 eck$LassoCheckResult]: loop already infeasible 14.20/6.63 [2019-03-28 22:22:18,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. 14.20/6.63 [2019-03-28 22:22:18,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 14.20/6.63 [2019-03-28 22:22:18,401 INFO L87 Difference]: Start difference. First operand 3 states. Second operand 3 states. 14.20/6.63 [2019-03-28 22:22:18,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. 14.20/6.63 [2019-03-28 22:22:18,420 INFO L93 Difference]: Finished difference Result 4 states and 5 transitions. 14.20/6.63 [2019-03-28 22:22:18,420 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 14.20/6.63 [2019-03-28 22:22:18,424 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 4 states and 5 transitions. 14.20/6.63 [2019-03-28 22:22:18,424 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 14.20/6.63 [2019-03-28 22:22:18,428 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 4 states to 4 states and 5 transitions. 14.20/6.63 [2019-03-28 22:22:18,430 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 14.20/6.63 [2019-03-28 22:22:18,430 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 14.20/6.63 [2019-03-28 22:22:18,430 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 5 transitions. 14.20/6.63 [2019-03-28 22:22:18,431 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. 14.20/6.63 [2019-03-28 22:22:18,431 INFO L706 BuchiCegarLoop]: Abstraction has 4 states and 5 transitions. 14.20/6.63 [2019-03-28 22:22:18,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4 states and 5 transitions. 14.20/6.63 [2019-03-28 22:22:18,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4 to 4. 14.20/6.63 [2019-03-28 22:22:18,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. 14.20/6.63 [2019-03-28 22:22:18,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 5 transitions. 14.20/6.63 [2019-03-28 22:22:18,461 INFO L729 BuchiCegarLoop]: Abstraction has 4 states and 5 transitions. 14.20/6.63 [2019-03-28 22:22:18,461 INFO L609 BuchiCegarLoop]: Abstraction has 4 states and 5 transitions. 14.20/6.63 [2019-03-28 22:22:18,461 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ 14.20/6.63 [2019-03-28 22:22:18,461 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states and 5 transitions. 14.20/6.63 [2019-03-28 22:22:18,462 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 14.20/6.63 [2019-03-28 22:22:18,462 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 14.20/6.63 [2019-03-28 22:22:18,462 INFO L119 BuchiIsEmpty]: Starting construction of run 14.20/6.63 [2019-03-28 22:22:18,462 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] 14.20/6.63 [2019-03-28 22:22:18,462 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] 14.20/6.63 [2019-03-28 22:22:18,467 INFO L794 eck$LassoCheckResult]: Stem: 18#ULTIMATE.startENTRY [34] ULTIMATE.startENTRY-->L10-2: Formula: (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[|v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 19#L10-2 14.20/6.63 [2019-03-28 22:22:18,467 INFO L796 eck$LassoCheckResult]: Loop: 19#L10-2 [39] L10-2-->L12-2: Formula: (and (< 0 v_ULTIMATE.start_main_~x~0_11) (= v_ULTIMATE.start_main_~y~0_7 0)) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0] 16#L12-2 [33] L12-2-->L12-2: Formula: (and (< v_ULTIMATE.start_main_~y~0_6 v_ULTIMATE.start_main_~x~0_7) (= v_ULTIMATE.start_main_~y~0_5 (+ v_ULTIMATE.start_main_~y~0_6 1))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0] 17#L12-2 [45] L12-2-->L10-2: Formula: (and (<= v_ULTIMATE.start_main_~x~0_14 v_ULTIMATE.start_main_~y~0_8) (= (+ v_ULTIMATE.start_main_~x~0_14 (- 1)) v_ULTIMATE.start_main_~x~0_13)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_14} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_13} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 19#L10-2 14.20/6.63 [2019-03-28 22:22:18,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 14.20/6.63 [2019-03-28 22:22:18,468 INFO L82 PathProgramCache]: Analyzing trace with hash 65, now seen corresponding path program 2 times 14.20/6.63 [2019-03-28 22:22:18,468 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 14.20/6.63 [2019-03-28 22:22:18,468 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 14.20/6.63 [2019-03-28 22:22:18,470 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 14.20/6.63 [2019-03-28 22:22:18,470 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 14.20/6.63 [2019-03-28 22:22:18,470 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 14.20/6.63 [2019-03-28 22:22:18,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 14.20/6.63 [2019-03-28 22:22:18,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 14.20/6.63 [2019-03-28 22:22:18,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 14.20/6.63 [2019-03-28 22:22:18,474 INFO L82 PathProgramCache]: Analyzing trace with hash 68338, now seen corresponding path program 1 times 14.20/6.63 [2019-03-28 22:22:18,474 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 14.20/6.63 [2019-03-28 22:22:18,474 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 14.20/6.63 [2019-03-28 22:22:18,476 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 14.20/6.63 [2019-03-28 22:22:18,476 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY 14.20/6.63 [2019-03-28 22:22:18,476 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 14.20/6.63 [2019-03-28 22:22:18,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 14.20/6.63 [2019-03-28 22:22:18,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 14.20/6.63 [2019-03-28 22:22:18,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 14.20/6.63 [2019-03-28 22:22:18,486 INFO L82 PathProgramCache]: Analyzing trace with hash 1974962, now seen corresponding path program 1 times 14.20/6.63 [2019-03-28 22:22:18,486 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 14.20/6.63 [2019-03-28 22:22:18,486 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 14.20/6.63 [2019-03-28 22:22:18,488 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 14.20/6.63 [2019-03-28 22:22:18,488 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 14.20/6.63 [2019-03-28 22:22:18,488 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 14.20/6.63 [2019-03-28 22:22:18,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 14.20/6.63 [2019-03-28 22:22:18,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 14.20/6.63 [2019-03-28 22:22:18,562 INFO L216 LassoAnalysis]: Preferences: 14.20/6.63 [2019-03-28 22:22:18,563 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 14.20/6.63 [2019-03-28 22:22:18,563 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 14.20/6.63 [2019-03-28 22:22:18,564 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 14.20/6.63 [2019-03-28 22:22:18,564 INFO L127 ssoRankerPreferences]: Use exernal solver: true 14.20/6.63 [2019-03-28 22:22:18,564 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 14.20/6.63 [2019-03-28 22:22:18,564 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 14.20/6.63 [2019-03-28 22:22:18,564 INFO L130 ssoRankerPreferences]: Path of dumped script: 14.20/6.63 [2019-03-28 22:22:18,565 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop 14.20/6.63 [2019-03-28 22:22:18,565 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 14.20/6.63 [2019-03-28 22:22:18,565 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 14.20/6.63 [2019-03-28 22:22:18,583 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 14.20/6.63 [2019-03-28 22:22:18,592 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 14.20/6.63 [2019-03-28 22:22:18,596 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 14.20/6.63 [2019-03-28 22:22:18,703 INFO L300 LassoAnalysis]: Preprocessing complete. 14.20/6.63 [2019-03-28 22:22:18,704 INFO L412 LassoAnalysis]: Checking for nontermination... 14.20/6.63 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 14.20/6.63 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 14.20/6.63 Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 14.20/6.63 [2019-03-28 22:22:18,711 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 14.20/6.63 [2019-03-28 22:22:18,711 INFO L163 nArgumentSynthesizer]: Using integer mode. 14.20/6.63 [2019-03-28 22:22:18,745 INFO L445 LassoAnalysis]: Proved nontermination for one component. 14.20/6.63 [2019-03-28 22:22:18,745 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] 14.20/6.63 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 14.20/6.63 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 14.20/6.63 Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 14.20/6.63 [2019-03-28 22:22:18,755 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 14.20/6.63 [2019-03-28 22:22:18,756 INFO L163 nArgumentSynthesizer]: Using integer mode. 14.20/6.63 [2019-03-28 22:22:18,784 INFO L445 LassoAnalysis]: Proved nontermination for one component. 14.20/6.63 [2019-03-28 22:22:18,784 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 14.20/6.63 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 14.20/6.63 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 14.20/6.63 Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 14.20/6.63 [2019-03-28 22:22:18,797 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 14.20/6.63 [2019-03-28 22:22:18,797 INFO L163 nArgumentSynthesizer]: Using integer mode. 14.20/6.63 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 14.20/6.63 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 14.20/6.63 Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 14.20/6.63 [2019-03-28 22:22:18,835 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true 14.20/6.63 [2019-03-28 22:22:18,835 INFO L163 nArgumentSynthesizer]: Using integer mode. 14.20/6.63 [2019-03-28 22:22:18,868 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. 14.20/6.63 [2019-03-28 22:22:18,870 INFO L216 LassoAnalysis]: Preferences: 14.20/6.63 [2019-03-28 22:22:18,871 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 14.20/6.63 [2019-03-28 22:22:18,871 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 14.20/6.63 [2019-03-28 22:22:18,871 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 14.20/6.63 [2019-03-28 22:22:18,871 INFO L127 ssoRankerPreferences]: Use exernal solver: false 14.20/6.63 [2019-03-28 22:22:18,871 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 14.20/6.63 [2019-03-28 22:22:18,871 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 14.20/6.63 [2019-03-28 22:22:18,871 INFO L130 ssoRankerPreferences]: Path of dumped script: 14.20/6.63 [2019-03-28 22:22:18,872 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop 14.20/6.63 [2019-03-28 22:22:18,872 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 14.20/6.63 [2019-03-28 22:22:18,872 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 14.20/6.63 [2019-03-28 22:22:18,874 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 14.20/6.63 [2019-03-28 22:22:18,878 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 14.20/6.63 [2019-03-28 22:22:18,883 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 14.20/6.63 [2019-03-28 22:22:18,983 INFO L300 LassoAnalysis]: Preprocessing complete. 14.20/6.63 [2019-03-28 22:22:18,989 INFO L497 LassoAnalysis]: Using template 'affine'. 14.20/6.63 [2019-03-28 22:22:19,006 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 14.20/6.63 Termination analysis: LINEAR_WITH_GUESSES 14.20/6.63 Number of strict supporting invariants: 0 14.20/6.63 Number of non-strict supporting invariants: 1 14.20/6.63 Consider only non-deceasing supporting invariants: true 14.20/6.63 Simplify termination arguments: true 14.20/6.63 Simplify supporting invariants: trueOverapproximate stem: false 14.20/6.63 [2019-03-28 22:22:19,007 INFO L339 nArgumentSynthesizer]: Template has degree 0. 14.20/6.63 [2019-03-28 22:22:19,008 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 14.20/6.63 [2019-03-28 22:22:19,008 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 14.20/6.63 [2019-03-28 22:22:19,008 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 14.20/6.63 [2019-03-28 22:22:19,013 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. 14.20/6.63 [2019-03-28 22:22:19,013 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. 14.20/6.63 [2019-03-28 22:22:19,021 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. 14.20/6.63 [2019-03-28 22:22:19,022 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 14.20/6.63 Termination analysis: LINEAR_WITH_GUESSES 14.20/6.63 Number of strict supporting invariants: 0 14.20/6.63 Number of non-strict supporting invariants: 1 14.20/6.63 Consider only non-deceasing supporting invariants: true 14.20/6.63 Simplify termination arguments: true 14.20/6.63 Simplify supporting invariants: trueOverapproximate stem: false 14.20/6.63 [2019-03-28 22:22:19,023 INFO L339 nArgumentSynthesizer]: Template has degree 0. 14.20/6.63 [2019-03-28 22:22:19,023 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 14.20/6.63 [2019-03-28 22:22:19,023 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 14.20/6.63 [2019-03-28 22:22:19,023 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 14.20/6.63 [2019-03-28 22:22:19,026 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. 14.20/6.63 [2019-03-28 22:22:19,026 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. 14.20/6.63 [2019-03-28 22:22:19,035 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. 14.20/6.63 [2019-03-28 22:22:19,035 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 14.20/6.63 Termination analysis: LINEAR_WITH_GUESSES 14.20/6.63 Number of strict supporting invariants: 0 14.20/6.63 Number of non-strict supporting invariants: 1 14.20/6.63 Consider only non-deceasing supporting invariants: true 14.20/6.63 Simplify termination arguments: true 14.20/6.63 Simplify supporting invariants: trueOverapproximate stem: false 14.20/6.63 [2019-03-28 22:22:19,036 INFO L339 nArgumentSynthesizer]: Template has degree 0. 14.20/6.63 [2019-03-28 22:22:19,036 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 14.20/6.63 [2019-03-28 22:22:19,037 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 14.20/6.63 [2019-03-28 22:22:19,037 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 14.20/6.63 [2019-03-28 22:22:19,037 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 14.20/6.63 [2019-03-28 22:22:19,038 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 14.20/6.63 [2019-03-28 22:22:19,038 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 14.20/6.63 [2019-03-28 22:22:19,045 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. 14.20/6.63 [2019-03-28 22:22:19,051 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. 14.20/6.63 [2019-03-28 22:22:19,051 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. 14.20/6.63 [2019-03-28 22:22:19,053 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... 14.20/6.63 [2019-03-28 22:22:19,053 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. 14.20/6.63 [2019-03-28 22:22:19,054 INFO L518 LassoAnalysis]: Proved termination. 14.20/6.63 [2019-03-28 22:22:19,054 INFO L520 LassoAnalysis]: Termination argument consisting of: 14.20/6.63 Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 14.20/6.63 Supporting invariants [] 14.20/6.63 [2019-03-28 22:22:19,056 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed 14.20/6.63 [2019-03-28 22:22:19,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 14.20/6.63 [2019-03-28 22:22:19,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 14.20/6.63 [2019-03-28 22:22:19,092 WARN L254 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core 14.20/6.63 [2019-03-28 22:22:19,093 INFO L279 TraceCheckSpWp]: Computing forward predicates... 14.20/6.63 [2019-03-28 22:22:19,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 14.20/6.63 [2019-03-28 22:22:19,102 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core 14.20/6.63 [2019-03-28 22:22:19,103 INFO L279 TraceCheckSpWp]: Computing forward predicates... 14.20/6.63 [2019-03-28 22:22:19,116 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. 14.20/6.63 [2019-03-28 22:22:19,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 14.20/6.63 [2019-03-28 22:22:19,137 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core 14.20/6.63 [2019-03-28 22:22:19,138 INFO L279 TraceCheckSpWp]: Computing forward predicates... 14.20/6.63 [2019-03-28 22:22:19,165 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 3 predicates after loop cannibalization 14.20/6.63 [2019-03-28 22:22:19,168 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 14.20/6.63 [2019-03-28 22:22:19,169 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 4 states and 5 transitions. cyclomatic complexity: 2 Second operand 3 states. 14.20/6.63 [2019-03-28 22:22:19,190 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 4 states and 5 transitions. cyclomatic complexity: 2. Second operand 3 states. Result 7 states and 10 transitions. Complement of second has 4 states. 14.20/6.63 [2019-03-28 22:22:19,191 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states 14.20/6.63 [2019-03-28 22:22:19,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. 14.20/6.63 [2019-03-28 22:22:19,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. 14.20/6.63 [2019-03-28 22:22:19,194 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 1 letters. Loop has 3 letters. 14.20/6.63 [2019-03-28 22:22:19,195 INFO L116 BuchiAccepts]: Finished buchiAccepts. 14.20/6.63 [2019-03-28 22:22:19,195 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 4 letters. Loop has 3 letters. 14.20/6.63 [2019-03-28 22:22:19,196 INFO L116 BuchiAccepts]: Finished buchiAccepts. 14.20/6.63 [2019-03-28 22:22:19,196 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 1 letters. Loop has 6 letters. 14.20/6.63 [2019-03-28 22:22:19,196 INFO L116 BuchiAccepts]: Finished buchiAccepts. 14.20/6.63 [2019-03-28 22:22:19,200 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7 states and 10 transitions. 14.20/6.63 [2019-03-28 22:22:19,201 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 14.20/6.63 [2019-03-28 22:22:19,201 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7 states to 7 states and 10 transitions. 14.20/6.63 [2019-03-28 22:22:19,201 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 14.20/6.63 [2019-03-28 22:22:19,202 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 14.20/6.63 [2019-03-28 22:22:19,202 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. 14.20/6.63 [2019-03-28 22:22:19,202 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. 14.20/6.63 [2019-03-28 22:22:19,202 INFO L706 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. 14.20/6.63 [2019-03-28 22:22:19,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. 14.20/6.63 [2019-03-28 22:22:19,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 6. 14.20/6.63 [2019-03-28 22:22:19,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. 14.20/6.63 [2019-03-28 22:22:19,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 9 transitions. 14.20/6.63 [2019-03-28 22:22:19,204 INFO L729 BuchiCegarLoop]: Abstraction has 6 states and 9 transitions. 14.20/6.63 [2019-03-28 22:22:19,204 INFO L609 BuchiCegarLoop]: Abstraction has 6 states and 9 transitions. 14.20/6.63 [2019-03-28 22:22:19,204 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ 14.20/6.63 [2019-03-28 22:22:19,204 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 9 transitions. 14.20/6.63 [2019-03-28 22:22:19,204 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 14.20/6.63 [2019-03-28 22:22:19,204 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 14.20/6.63 [2019-03-28 22:22:19,205 INFO L119 BuchiIsEmpty]: Starting construction of run 14.20/6.63 [2019-03-28 22:22:19,205 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] 14.20/6.63 [2019-03-28 22:22:19,205 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] 14.20/6.63 [2019-03-28 22:22:19,205 INFO L794 eck$LassoCheckResult]: Stem: 71#ULTIMATE.startENTRY [34] ULTIMATE.startENTRY-->L10-2: Formula: (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[|v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 72#L10-2 [39] L10-2-->L12-2: Formula: (and (< 0 v_ULTIMATE.start_main_~x~0_11) (= v_ULTIMATE.start_main_~y~0_7 0)) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0] 68#L12-2 14.20/6.63 [2019-03-28 22:22:19,206 INFO L796 eck$LassoCheckResult]: Loop: 68#L12-2 [33] L12-2-->L12-2: Formula: (and (< v_ULTIMATE.start_main_~y~0_6 v_ULTIMATE.start_main_~x~0_7) (= v_ULTIMATE.start_main_~y~0_5 (+ v_ULTIMATE.start_main_~y~0_6 1))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0] 68#L12-2 14.20/6.63 [2019-03-28 22:22:19,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 14.20/6.63 [2019-03-28 22:22:19,206 INFO L82 PathProgramCache]: Analyzing trace with hash 2054, now seen corresponding path program 1 times 14.20/6.63 [2019-03-28 22:22:19,206 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 14.20/6.63 [2019-03-28 22:22:19,206 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 14.20/6.63 [2019-03-28 22:22:19,208 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 14.20/6.63 [2019-03-28 22:22:19,208 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 14.20/6.63 [2019-03-28 22:22:19,208 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 14.20/6.63 [2019-03-28 22:22:19,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 14.20/6.63 [2019-03-28 22:22:19,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 14.20/6.63 [2019-03-28 22:22:19,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 14.20/6.63 [2019-03-28 22:22:19,213 INFO L82 PathProgramCache]: Analyzing trace with hash 64, now seen corresponding path program 1 times 14.20/6.63 [2019-03-28 22:22:19,213 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 14.20/6.63 [2019-03-28 22:22:19,213 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 14.20/6.63 [2019-03-28 22:22:19,214 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 14.20/6.63 [2019-03-28 22:22:19,215 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 14.20/6.63 [2019-03-28 22:22:19,215 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 14.20/6.63 [2019-03-28 22:22:19,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 14.20/6.63 [2019-03-28 22:22:19,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 14.20/6.63 [2019-03-28 22:22:19,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 14.20/6.63 [2019-03-28 22:22:19,219 INFO L82 PathProgramCache]: Analyzing trace with hash 63707, now seen corresponding path program 1 times 14.20/6.63 [2019-03-28 22:22:19,219 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 14.20/6.63 [2019-03-28 22:22:19,220 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 14.20/6.63 [2019-03-28 22:22:19,221 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 14.20/6.63 [2019-03-28 22:22:19,221 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 14.20/6.63 [2019-03-28 22:22:19,221 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 14.20/6.63 [2019-03-28 22:22:19,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 14.20/6.63 [2019-03-28 22:22:19,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 14.20/6.63 [2019-03-28 22:22:19,241 INFO L216 LassoAnalysis]: Preferences: 14.20/6.63 [2019-03-28 22:22:19,241 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 14.20/6.63 [2019-03-28 22:22:19,241 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 14.20/6.63 [2019-03-28 22:22:19,242 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 14.20/6.63 [2019-03-28 22:22:19,242 INFO L127 ssoRankerPreferences]: Use exernal solver: true 14.20/6.63 [2019-03-28 22:22:19,242 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 14.20/6.63 [2019-03-28 22:22:19,242 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 14.20/6.63 [2019-03-28 22:22:19,242 INFO L130 ssoRankerPreferences]: Path of dumped script: 14.20/6.63 [2019-03-28 22:22:19,242 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop 14.20/6.63 [2019-03-28 22:22:19,242 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 14.20/6.63 [2019-03-28 22:22:19,243 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 14.20/6.63 [2019-03-28 22:22:19,244 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 14.20/6.63 [2019-03-28 22:22:19,248 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 14.20/6.63 [2019-03-28 22:22:19,251 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 14.20/6.63 [2019-03-28 22:22:19,301 INFO L300 LassoAnalysis]: Preprocessing complete. 14.20/6.63 [2019-03-28 22:22:19,301 INFO L412 LassoAnalysis]: Checking for nontermination... 14.20/6.63 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 14.20/6.63 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 14.20/6.63 Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 14.20/6.63 [2019-03-28 22:22:19,308 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 14.20/6.63 [2019-03-28 22:22:19,308 INFO L163 nArgumentSynthesizer]: Using integer mode. 14.20/6.63 [2019-03-28 22:22:19,337 INFO L445 LassoAnalysis]: Proved nontermination for one component. 14.20/6.63 [2019-03-28 22:22:19,338 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 14.20/6.63 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 14.20/6.63 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 14.20/6.63 Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 14.20/6.63 [2019-03-28 22:22:19,349 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 14.20/6.63 [2019-03-28 22:22:19,349 INFO L163 nArgumentSynthesizer]: Using integer mode. 14.20/6.63 [2019-03-28 22:22:19,378 INFO L445 LassoAnalysis]: Proved nontermination for one component. 14.20/6.63 [2019-03-28 22:22:19,379 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] 14.20/6.63 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 14.20/6.63 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 14.20/6.63 Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 14.20/6.63 [2019-03-28 22:22:19,384 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 14.20/6.63 [2019-03-28 22:22:19,384 INFO L163 nArgumentSynthesizer]: Using integer mode. 14.20/6.63 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 14.20/6.63 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 14.20/6.63 Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 14.20/6.63 [2019-03-28 22:22:19,416 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true 14.20/6.63 [2019-03-28 22:22:19,417 INFO L163 nArgumentSynthesizer]: Using integer mode. 14.20/6.63 [2019-03-28 22:22:19,592 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. 14.20/6.63 [2019-03-28 22:22:19,594 INFO L216 LassoAnalysis]: Preferences: 14.20/6.63 [2019-03-28 22:22:19,594 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 14.20/6.63 [2019-03-28 22:22:19,594 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 14.20/6.63 [2019-03-28 22:22:19,594 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 14.20/6.63 [2019-03-28 22:22:19,595 INFO L127 ssoRankerPreferences]: Use exernal solver: false 14.20/6.63 [2019-03-28 22:22:19,595 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 14.20/6.63 [2019-03-28 22:22:19,595 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 14.20/6.63 [2019-03-28 22:22:19,595 INFO L130 ssoRankerPreferences]: Path of dumped script: 14.20/6.63 [2019-03-28 22:22:19,595 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop 14.20/6.63 [2019-03-28 22:22:19,596 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 14.20/6.63 [2019-03-28 22:22:19,596 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 14.20/6.63 [2019-03-28 22:22:19,597 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 14.20/6.63 [2019-03-28 22:22:19,602 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 14.20/6.63 [2019-03-28 22:22:19,609 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 14.20/6.63 [2019-03-28 22:22:19,657 INFO L300 LassoAnalysis]: Preprocessing complete. 14.20/6.63 [2019-03-28 22:22:19,657 INFO L497 LassoAnalysis]: Using template 'affine'. 14.20/6.63 [2019-03-28 22:22:19,658 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 14.20/6.63 Termination analysis: LINEAR_WITH_GUESSES 14.20/6.63 Number of strict supporting invariants: 0 14.20/6.63 Number of non-strict supporting invariants: 1 14.20/6.63 Consider only non-deceasing supporting invariants: true 14.20/6.63 Simplify termination arguments: true 14.20/6.63 Simplify supporting invariants: trueOverapproximate stem: false 14.20/6.63 [2019-03-28 22:22:19,659 INFO L339 nArgumentSynthesizer]: Template has degree 0. 14.20/6.63 [2019-03-28 22:22:19,659 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 14.20/6.63 [2019-03-28 22:22:19,659 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 14.20/6.63 [2019-03-28 22:22:19,660 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 14.20/6.63 [2019-03-28 22:22:19,662 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. 14.20/6.63 [2019-03-28 22:22:19,662 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. 14.20/6.63 [2019-03-28 22:22:19,667 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. 14.20/6.63 [2019-03-28 22:22:19,667 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 14.20/6.63 Termination analysis: LINEAR_WITH_GUESSES 14.20/6.63 Number of strict supporting invariants: 0 14.20/6.63 Number of non-strict supporting invariants: 1 14.20/6.63 Consider only non-deceasing supporting invariants: true 14.20/6.63 Simplify termination arguments: true 14.20/6.63 Simplify supporting invariants: trueOverapproximate stem: false 14.20/6.63 [2019-03-28 22:22:19,668 INFO L339 nArgumentSynthesizer]: Template has degree 0. 14.20/6.63 [2019-03-28 22:22:19,668 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 14.20/6.63 [2019-03-28 22:22:19,668 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 14.20/6.63 [2019-03-28 22:22:19,668 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 14.20/6.63 [2019-03-28 22:22:19,668 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 14.20/6.63 [2019-03-28 22:22:19,669 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 14.20/6.63 [2019-03-28 22:22:19,669 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 14.20/6.63 [2019-03-28 22:22:19,674 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. 14.20/6.63 [2019-03-28 22:22:19,677 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. 14.20/6.63 [2019-03-28 22:22:19,678 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. 14.20/6.63 [2019-03-28 22:22:19,678 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... 14.20/6.63 [2019-03-28 22:22:19,678 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. 14.20/6.63 [2019-03-28 22:22:19,679 INFO L518 LassoAnalysis]: Proved termination. 14.20/6.63 [2019-03-28 22:22:19,679 INFO L520 LassoAnalysis]: Termination argument consisting of: 14.20/6.63 Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0) = -1*ULTIMATE.start_main_~y~0 + 1*ULTIMATE.start_main_~x~0 14.20/6.63 Supporting invariants [] 14.20/6.63 [2019-03-28 22:22:19,679 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed 14.20/6.63 [2019-03-28 22:22:19,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 14.20/6.63 [2019-03-28 22:22:19,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 14.20/6.63 [2019-03-28 22:22:19,708 INFO L256 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core 14.20/6.63 [2019-03-28 22:22:19,708 INFO L279 TraceCheckSpWp]: Computing forward predicates... 14.20/6.63 [2019-03-28 22:22:19,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 14.20/6.63 [2019-03-28 22:22:19,713 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core 14.20/6.63 [2019-03-28 22:22:19,715 INFO L279 TraceCheckSpWp]: Computing forward predicates... 14.20/6.63 [2019-03-28 22:22:19,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. 14.20/6.63 [2019-03-28 22:22:19,715 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization 14.20/6.63 [2019-03-28 22:22:19,716 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 1 loop predicates 14.20/6.63 [2019-03-28 22:22:19,716 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 6 states and 9 transitions. cyclomatic complexity: 5 Second operand 2 states. 14.20/6.63 [2019-03-28 22:22:19,728 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 6 states and 9 transitions. cyclomatic complexity: 5. Second operand 2 states. Result 8 states and 11 transitions. Complement of second has 4 states. 14.20/6.63 [2019-03-28 22:22:19,729 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states 14.20/6.63 [2019-03-28 22:22:19,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. 14.20/6.63 [2019-03-28 22:22:19,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. 14.20/6.63 [2019-03-28 22:22:19,730 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 2 letters. Loop has 1 letters. 14.20/6.63 [2019-03-28 22:22:19,730 INFO L116 BuchiAccepts]: Finished buchiAccepts. 14.20/6.63 [2019-03-28 22:22:19,730 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 3 letters. Loop has 1 letters. 14.20/6.63 [2019-03-28 22:22:19,730 INFO L116 BuchiAccepts]: Finished buchiAccepts. 14.20/6.63 [2019-03-28 22:22:19,731 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 2 letters. Loop has 2 letters. 14.20/6.63 [2019-03-28 22:22:19,731 INFO L116 BuchiAccepts]: Finished buchiAccepts. 14.20/6.63 [2019-03-28 22:22:19,732 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 11 transitions. 14.20/6.63 [2019-03-28 22:22:19,733 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 14.20/6.63 [2019-03-28 22:22:19,733 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 0 states and 0 transitions. 14.20/6.63 [2019-03-28 22:22:19,733 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 14.20/6.63 [2019-03-28 22:22:19,734 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 14.20/6.63 [2019-03-28 22:22:19,734 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. 14.20/6.63 [2019-03-28 22:22:19,734 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. 14.20/6.63 [2019-03-28 22:22:19,734 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. 14.20/6.63 [2019-03-28 22:22:19,734 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. 14.20/6.63 [2019-03-28 22:22:19,734 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. 14.20/6.63 [2019-03-28 22:22:19,734 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ 14.20/6.63 [2019-03-28 22:22:19,734 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. 14.20/6.63 [2019-03-28 22:22:19,735 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 14.20/6.63 [2019-03-28 22:22:19,735 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true 14.20/6.63 [2019-03-28 22:22:19,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.03 10:22:19 BasicIcfg 14.20/6.63 [2019-03-28 22:22:19,741 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- 14.20/6.63 [2019-03-28 22:22:19,742 INFO L168 Benchmark]: Toolchain (without parser) took 2315.58 ms. Allocated memory was 649.6 MB in the beginning and 669.0 MB in the end (delta: 19.4 MB). Free memory was 558.4 MB in the beginning and 452.9 MB in the end (delta: 105.5 MB). Peak memory consumption was 124.9 MB. Max. memory is 50.3 GB. 14.20/6.63 [2019-03-28 22:22:19,744 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 649.6 MB. Free memory is still 580.0 MB. There was no memory consumed. Max. memory is 50.3 GB. 14.20/6.63 [2019-03-28 22:22:19,744 INFO L168 Benchmark]: CACSL2BoogieTranslator took 276.81 ms. Allocated memory was 649.6 MB in the beginning and 669.0 MB in the end (delta: 19.4 MB). Free memory was 558.4 MB in the beginning and 635.4 MB in the end (delta: -77.0 MB). Peak memory consumption was 29.9 MB. Max. memory is 50.3 GB. 14.20/6.63 [2019-03-28 22:22:19,745 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.33 ms. Allocated memory is still 669.0 MB. Free memory was 635.4 MB in the beginning and 632.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 50.3 GB. 14.20/6.63 [2019-03-28 22:22:19,746 INFO L168 Benchmark]: Boogie Preprocessor took 19.26 ms. Allocated memory is still 669.0 MB. Free memory was 632.3 MB in the beginning and 631.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. 14.20/6.63 [2019-03-28 22:22:19,746 INFO L168 Benchmark]: RCFGBuilder took 185.69 ms. Allocated memory is still 669.0 MB. Free memory was 631.0 MB in the beginning and 618.1 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 50.3 GB. 14.20/6.63 [2019-03-28 22:22:19,747 INFO L168 Benchmark]: BlockEncodingV2 took 69.91 ms. Allocated memory is still 669.0 MB. Free memory was 618.1 MB in the beginning and 614.0 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 50.3 GB. 14.20/6.63 [2019-03-28 22:22:19,747 INFO L168 Benchmark]: TraceAbstraction took 154.45 ms. Allocated memory is still 669.0 MB. Free memory was 612.6 MB in the beginning and 603.5 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 50.3 GB. 14.20/6.63 [2019-03-28 22:22:19,748 INFO L168 Benchmark]: BuchiAutomizer took 1569.54 ms. Allocated memory is still 669.0 MB. Free memory was 603.5 MB in the beginning and 452.9 MB in the end (delta: 150.6 MB). Peak memory consumption was 150.6 MB. Max. memory is 50.3 GB. 14.20/6.63 [2019-03-28 22:22:19,752 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### 14.20/6.63 --- Results --- 14.20/6.63 * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: 14.20/6.63 - StatisticsResult: Initial Icfg 14.20/6.63 8 locations, 11 edges 14.20/6.63 - StatisticsResult: Encoded RCFG 14.20/6.63 3 locations, 4 edges 14.20/6.63 * Results from de.uni_freiburg.informatik.ultimate.core: 14.20/6.63 - StatisticsResult: Toolchain Benchmarks 14.20/6.63 Benchmark results are: 14.20/6.63 * CDTParser took 0.18 ms. Allocated memory is still 649.6 MB. Free memory is still 580.0 MB. There was no memory consumed. Max. memory is 50.3 GB. 14.20/6.63 * CACSL2BoogieTranslator took 276.81 ms. Allocated memory was 649.6 MB in the beginning and 669.0 MB in the end (delta: 19.4 MB). Free memory was 558.4 MB in the beginning and 635.4 MB in the end (delta: -77.0 MB). Peak memory consumption was 29.9 MB. Max. memory is 50.3 GB. 14.20/6.63 * Boogie Procedure Inliner took 34.33 ms. Allocated memory is still 669.0 MB. Free memory was 635.4 MB in the beginning and 632.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 50.3 GB. 14.20/6.63 * Boogie Preprocessor took 19.26 ms. Allocated memory is still 669.0 MB. Free memory was 632.3 MB in the beginning and 631.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. 14.20/6.63 * RCFGBuilder took 185.69 ms. Allocated memory is still 669.0 MB. Free memory was 631.0 MB in the beginning and 618.1 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 50.3 GB. 14.20/6.63 * BlockEncodingV2 took 69.91 ms. Allocated memory is still 669.0 MB. Free memory was 618.1 MB in the beginning and 614.0 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 50.3 GB. 14.20/6.63 * TraceAbstraction took 154.45 ms. Allocated memory is still 669.0 MB. Free memory was 612.6 MB in the beginning and 603.5 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 50.3 GB. 14.20/6.63 * BuchiAutomizer took 1569.54 ms. Allocated memory is still 669.0 MB. Free memory was 603.5 MB in the beginning and 452.9 MB in the end (delta: 150.6 MB). Peak memory consumption was 150.6 MB. Max. memory is 50.3 GB. 14.20/6.63 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: 14.20/6.63 - AllSpecificationsHoldResult: All specifications hold 14.20/6.63 We were not able to verify any specifiation because the program does not contain any specification. 14.20/6.63 - InvariantResult [Line: 12]: Loop Invariant 14.20/6.63 Derived loop invariant: 1 14.20/6.63 - InvariantResult [Line: 10]: Loop Invariant 14.20/6.63 Derived loop invariant: 1 14.20/6.63 - StatisticsResult: Ultimate Automizer benchmark data 14.20/6.63 CFG has 1 procedures, 3 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=3occurred 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, 2 LocationsWithAnnotation, 2 PreInvPairs, 2 NumberOfFragments, 2 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available 14.20/6.63 - StatisticsResult: Constructed decomposition of program 14.20/6.63 Your program was decomposed into 3 terminating modules (1 trivial, 0 deterministic, 2 nondeterministic). One nondeterministic module has affine ranking function x and consists of 3 locations. One nondeterministic module has affine ranking function -1 * y + x and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. 14.20/6.63 - StatisticsResult: Timing statistics 14.20/6.63 BüchiAutomizer plugin needed 1.5s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 1.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 6 states and ocurred in iteration 2. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 1/1 HoareTripleCheckerStatistics: 11 SDtfs, 11 SDslu, 0 SDs, 0 SdLazy, 19 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital13 mio100 ax197 hnf100 lsp51 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq161 hnf93 smp93 dnf100 smp100 tf111 neg100 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 16ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s 14.20/6.63 - TerminationAnalysisResult: Termination proven 14.20/6.63 Buchi Automizer proved that your program is terminating 14.20/6.63 RESULT: Ultimate proved your program to be correct! 14.20/6.63 !SESSION 2019-03-28 22:22:14.162 ----------------------------------------------- 14.20/6.63 eclipse.buildId=unknown 14.20/6.63 java.version=1.8.0_181 14.20/6.63 java.vendor=Oracle Corporation 14.20/6.63 BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US 14.20/6.63 Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox/benchmark/theBenchmark.c 14.20/6.63 Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox/tmp -i /export/starexec/sandbox/benchmark/theBenchmark.c 14.20/6.63 14.20/6.63 !ENTRY org.eclipse.core.resources 2 10035 2019-03-28 22:22:19.986 14.20/6.63 !MESSAGE The workspace will exit with unsaved changes in this session. 14.20/6.63 Received shutdown request... 14.20/6.63 Ultimate: 14.20/6.63 GTK+ Version Check 14.20/6.63 EOF