14.64/6.63 YES 14.64/6.63 14.64/6.63 Ultimate: Cannot open display: 14.64/6.63 This is Ultimate 0.1.24-8dc7c08-m 14.64/6.63 [2019-03-28 22:33:00,366 INFO L170 SettingsManager]: Resetting all preferences to default values... 14.64/6.63 [2019-03-28 22:33:00,369 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values 14.64/6.63 [2019-03-28 22:33:00,380 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 14.64/6.63 [2019-03-28 22:33:00,380 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values 14.64/6.63 [2019-03-28 22:33:00,381 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values 14.64/6.63 [2019-03-28 22:33:00,382 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values 14.64/6.63 [2019-03-28 22:33:00,384 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values 14.64/6.63 [2019-03-28 22:33:00,385 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values 14.64/6.63 [2019-03-28 22:33:00,386 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values 14.64/6.63 [2019-03-28 22:33:00,387 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 14.64/6.63 [2019-03-28 22:33:00,387 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values 14.64/6.63 [2019-03-28 22:33:00,388 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values 14.64/6.63 [2019-03-28 22:33:00,389 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values 14.64/6.63 [2019-03-28 22:33:00,390 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values 14.64/6.63 [2019-03-28 22:33:00,391 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values 14.64/6.63 [2019-03-28 22:33:00,392 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values 14.64/6.63 [2019-03-28 22:33:00,393 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values 14.64/6.63 [2019-03-28 22:33:00,395 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values 14.64/6.63 [2019-03-28 22:33:00,397 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values 14.64/6.63 [2019-03-28 22:33:00,398 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values 14.64/6.63 [2019-03-28 22:33:00,399 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values 14.64/6.63 [2019-03-28 22:33:00,401 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 14.64/6.63 [2019-03-28 22:33:00,401 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... 14.64/6.63 [2019-03-28 22:33:00,401 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values 14.64/6.63 [2019-03-28 22:33:00,402 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values 14.64/6.63 [2019-03-28 22:33:00,403 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values 14.64/6.63 [2019-03-28 22:33:00,403 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... 14.64/6.63 [2019-03-28 22:33:00,404 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values 14.64/6.63 [2019-03-28 22:33:00,404 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values 14.64/6.63 [2019-03-28 22:33:00,405 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values 14.64/6.63 [2019-03-28 22:33:00,406 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values 14.64/6.63 [2019-03-28 22:33:00,407 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... 14.64/6.63 [2019-03-28 22:33:00,407 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values 14.64/6.63 [2019-03-28 22:33:00,408 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 14.64/6.63 [2019-03-28 22:33:00,408 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... 14.64/6.63 [2019-03-28 22:33:00,408 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values 14.64/6.63 [2019-03-28 22:33:00,409 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values 14.64/6.63 [2019-03-28 22:33:00,409 INFO L181 SettingsManager]: Finished resetting all preferences to default values... 14.64/6.63 [2019-03-28 22:33:00,410 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf 14.64/6.63 [2019-03-28 22:33:00,424 INFO L110 SettingsManager]: Loading preferences was successful 14.64/6.63 [2019-03-28 22:33:00,424 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: 14.64/6.63 [2019-03-28 22:33:00,425 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: 14.64/6.63 [2019-03-28 22:33:00,426 INFO L133 SettingsManager]: * Rewrite not-equals=true 14.64/6.63 [2019-03-28 22:33:00,426 INFO L133 SettingsManager]: * Create parallel compositions if possible=false 14.64/6.63 [2019-03-28 22:33:00,426 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE 14.64/6.63 [2019-03-28 22:33:00,426 INFO L133 SettingsManager]: * Use SBE=true 14.64/6.63 [2019-03-28 22:33:00,427 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: 14.64/6.63 [2019-03-28 22:33:00,427 INFO L133 SettingsManager]: * Use old map elimination=false 14.64/6.63 [2019-03-28 22:33:00,427 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false 14.64/6.63 [2019-03-28 22:33:00,427 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION 14.64/6.63 [2019-03-28 22:33:00,427 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true 14.64/6.63 [2019-03-28 22:33:00,427 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES 14.64/6.63 [2019-03-28 22:33:00,428 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true 14.64/6.63 [2019-03-28 22:33:00,428 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 14.64/6.63 [2019-03-28 22:33:00,428 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: 14.64/6.63 [2019-03-28 22:33:00,428 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false 14.64/6.63 [2019-03-28 22:33:00,429 INFO L133 SettingsManager]: * Check division by zero=IGNORE 14.64/6.63 [2019-03-28 22:33:00,429 INFO L133 SettingsManager]: * Check if freed pointer was valid=false 14.64/6.63 [2019-03-28 22:33:00,429 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false 14.64/6.63 [2019-03-28 22:33:00,429 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE 14.64/6.63 [2019-03-28 22:33:00,429 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: 14.64/6.63 [2019-03-28 22:33:00,429 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements 14.64/6.63 [2019-03-28 22:33:00,430 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump 14.64/6.63 [2019-03-28 22:33:00,430 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 14.64/6.63 [2019-03-28 22:33:00,430 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: 14.64/6.63 [2019-03-28 22:33:00,430 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles 14.64/6.63 [2019-03-28 22:33:00,430 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL 14.64/6.63 [2019-03-28 22:33:00,431 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 14.64/6.63 [2019-03-28 22:33:00,456 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp 14.64/6.63 [2019-03-28 22:33:00,469 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized 14.64/6.63 [2019-03-28 22:33:00,473 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. 14.64/6.63 [2019-03-28 22:33:00,474 INFO L271 PluginConnector]: Initializing CDTParser... 14.64/6.63 [2019-03-28 22:33:00,475 INFO L276 PluginConnector]: CDTParser initialized 14.64/6.63 [2019-03-28 22:33:00,476 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c 14.64/6.63 [2019-03-28 22:33:00,542 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/a039a7695df14869b6682429a99ae5b9/FLAG1e6d3e51f 14.64/6.63 [2019-03-28 22:33:00,869 INFO L307 CDTParser]: Found 1 translation units. 14.64/6.63 [2019-03-28 22:33:00,870 INFO L161 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c 14.64/6.63 [2019-03-28 22:33:00,876 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/a039a7695df14869b6682429a99ae5b9/FLAG1e6d3e51f 14.64/6.63 [2019-03-28 22:33:01,273 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/a039a7695df14869b6682429a99ae5b9 14.64/6.63 [2019-03-28 22:33:01,284 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### 14.64/6.63 [2019-03-28 22:33:01,286 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. 14.64/6.63 [2019-03-28 22:33:01,287 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- 14.64/6.63 [2019-03-28 22:33:01,287 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... 14.64/6.63 [2019-03-28 22:33:01,291 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized 14.64/6.63 [2019-03-28 22:33:01,292 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.03 10:33:01" (1/1) ... 14.64/6.63 [2019-03-28 22:33:01,295 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f1da502 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:33:01, skipping insertion in model container 14.64/6.63 [2019-03-28 22:33:01,295 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.03 10:33:01" (1/1) ... 14.64/6.63 [2019-03-28 22:33:01,303 INFO L145 MainTranslator]: Starting translation in SV-COMP mode 14.64/6.63 [2019-03-28 22:33:01,320 INFO L176 MainTranslator]: Built tables and reachable declarations 14.64/6.63 [2019-03-28 22:33:01,477 INFO L206 PostProcessor]: Analyzing one entry point: main 14.64/6.63 [2019-03-28 22:33:01,482 INFO L191 MainTranslator]: Completed pre-run 14.64/6.63 [2019-03-28 22:33:01,499 INFO L206 PostProcessor]: Analyzing one entry point: main 14.64/6.63 [2019-03-28 22:33:01,514 INFO L195 MainTranslator]: Completed translation 14.64/6.63 [2019-03-28 22:33:01,514 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:33:01 WrapperNode 14.64/6.63 [2019-03-28 22:33:01,515 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- 14.64/6.63 [2019-03-28 22:33:01,515 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- 14.64/6.63 [2019-03-28 22:33:01,516 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... 14.64/6.63 [2019-03-28 22:33:01,516 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized 14.64/6.63 [2019-03-28 22:33:01,592 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:33:01" (1/1) ... 14.64/6.63 [2019-03-28 22:33:01,598 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:33:01" (1/1) ... 14.64/6.63 [2019-03-28 22:33:01,619 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- 14.64/6.63 [2019-03-28 22:33:01,620 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- 14.64/6.63 [2019-03-28 22:33:01,620 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... 14.64/6.63 [2019-03-28 22:33:01,620 INFO L276 PluginConnector]: Boogie Preprocessor initialized 14.64/6.63 [2019-03-28 22:33:01,630 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:33:01" (1/1) ... 14.64/6.63 [2019-03-28 22:33:01,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:33:01" (1/1) ... 14.64/6.63 [2019-03-28 22:33:01,631 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:33:01" (1/1) ... 14.64/6.63 [2019-03-28 22:33:01,631 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:33:01" (1/1) ... 14.64/6.63 [2019-03-28 22:33:01,633 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:33:01" (1/1) ... 14.64/6.63 [2019-03-28 22:33:01,638 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:33:01" (1/1) ... 14.64/6.63 [2019-03-28 22:33:01,639 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:33:01" (1/1) ... 14.64/6.63 [2019-03-28 22:33:01,640 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- 14.64/6.63 [2019-03-28 22:33:01,641 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- 14.64/6.63 [2019-03-28 22:33:01,641 INFO L271 PluginConnector]: Initializing RCFGBuilder... 14.64/6.63 [2019-03-28 22:33:01,641 INFO L276 PluginConnector]: RCFGBuilder initialized 14.64/6.63 [2019-03-28 22:33:01,642 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:33:01" (1/1) ... 14.64/6.63 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 14.64/6.63 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) 14.64/6.63 Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 14.64/6.63 [2019-03-28 22:33:01,715 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start 14.64/6.63 [2019-03-28 22:33:01,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start 14.64/6.63 [2019-03-28 22:33:01,848 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) 14.64/6.63 [2019-03-28 22:33:01,849 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. 14.64/6.63 [2019-03-28 22:33:01,850 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 10:33:01 BoogieIcfgContainer 14.64/6.63 [2019-03-28 22:33:01,850 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- 14.64/6.63 [2019-03-28 22:33:01,851 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- 14.64/6.63 [2019-03-28 22:33:01,851 INFO L271 PluginConnector]: Initializing BlockEncodingV2... 14.64/6.63 [2019-03-28 22:33:01,854 INFO L276 PluginConnector]: BlockEncodingV2 initialized 14.64/6.63 [2019-03-28 22:33:01,855 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 10:33:01" (1/1) ... 14.64/6.63 [2019-03-28 22:33:01,870 INFO L313 BlockEncoder]: Initial Icfg 8 locations, 10 edges 14.64/6.63 [2019-03-28 22:33:01,872 INFO L258 BlockEncoder]: Using Remove infeasible edges 14.64/6.63 [2019-03-28 22:33:01,873 INFO L263 BlockEncoder]: Using Maximize final states 14.64/6.63 [2019-03-28 22:33:01,874 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false 14.64/6.63 [2019-03-28 22:33:01,874 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE 14.64/6.63 [2019-03-28 22:33:01,876 INFO L296 BlockEncoder]: Using Remove sink states 14.64/6.63 [2019-03-28 22:33:01,877 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true 14.64/6.63 [2019-03-28 22:33:01,877 INFO L179 BlockEncoder]: Using Rewrite not-equals 14.64/6.63 [2019-03-28 22:33:01,894 INFO L185 BlockEncoder]: Using Use SBE 14.64/6.63 [2019-03-28 22:33:01,909 INFO L200 BlockEncoder]: SBE split 1 edges 14.64/6.63 [2019-03-28 22:33:01,915 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility 14.64/6.63 [2019-03-28 22:33:01,917 INFO L71 MaximizeFinalStates]: 0 new accepting states 14.64/6.63 [2019-03-28 22:33:01,929 INFO L100 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding 14.64/6.63 [2019-03-28 22:33:01,931 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states 14.64/6.63 [2019-03-28 22:33:01,932 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility 14.64/6.63 [2019-03-28 22:33:01,933 INFO L71 MaximizeFinalStates]: 0 new accepting states 14.64/6.63 [2019-03-28 22:33:01,933 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding 14.64/6.63 [2019-03-28 22:33:01,933 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states 14.64/6.63 [2019-03-28 22:33:01,934 INFO L313 BlockEncoder]: Encoded RCFG 4 locations, 6 edges 14.64/6.63 [2019-03-28 22:33:01,934 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 28.03 10:33:01 BasicIcfg 14.64/6.63 [2019-03-28 22:33:01,934 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- 14.64/6.63 [2019-03-28 22:33:01,935 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- 14.64/6.63 [2019-03-28 22:33:01,935 INFO L271 PluginConnector]: Initializing TraceAbstraction... 14.64/6.63 [2019-03-28 22:33:01,939 INFO L276 PluginConnector]: TraceAbstraction initialized 14.64/6.63 [2019-03-28 22:33:01,939 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.03 10:33:01" (1/4) ... 14.64/6.63 [2019-03-28 22:33:01,940 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dd2cdf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.03 10:33:01, skipping insertion in model container 14.64/6.63 [2019-03-28 22:33:01,940 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:33:01" (2/4) ... 14.64/6.63 [2019-03-28 22:33:01,940 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dd2cdf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.03 10:33:01, skipping insertion in model container 14.64/6.63 [2019-03-28 22:33:01,941 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 10:33:01" (3/4) ... 14.64/6.63 [2019-03-28 22:33:01,941 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dd2cdf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.03 10:33:01, skipping insertion in model container 14.64/6.63 [2019-03-28 22:33:01,941 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 28.03 10:33:01" (4/4) ... 14.64/6.63 [2019-03-28 22:33:01,943 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 14.64/6.63 [2019-03-28 22:33:01,953 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION 14.64/6.63 [2019-03-28 22:33:01,961 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. 14.64/6.63 [2019-03-28 22:33:01,978 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. 14.64/6.63 [2019-03-28 22:33:02,007 INFO L133 ementStrategyFactory]: Using default assertion order modulation 14.64/6.63 [2019-03-28 22:33:02,008 INFO L382 AbstractCegarLoop]: Interprodecural is true 14.64/6.63 [2019-03-28 22:33:02,008 INFO L383 AbstractCegarLoop]: Hoare is true 14.64/6.63 [2019-03-28 22:33:02,008 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates 14.64/6.63 [2019-03-28 22:33:02,008 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE 14.64/6.63 [2019-03-28 22:33:02,008 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION 14.64/6.63 [2019-03-28 22:33:02,009 INFO L387 AbstractCegarLoop]: Difference is false 14.64/6.63 [2019-03-28 22:33:02,009 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA 14.64/6.63 [2019-03-28 22:33:02,009 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== 14.64/6.63 [2019-03-28 22:33:02,023 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states. 14.64/6.63 [2019-03-28 22:33:02,029 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. 14.64/6.63 [2019-03-28 22:33:02,032 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. 14.64/6.63 [2019-03-28 22:33:02,081 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. 14.64/6.63 [2019-03-28 22:33:02,082 INFO L448 ceAbstractionStarter]: For program point L13(lines 13 15) no Hoare annotation was computed. 14.64/6.63 [2019-03-28 22:33:02,082 INFO L448 ceAbstractionStarter]: For program point L13-2(lines 13 15) no Hoare annotation was computed. 14.64/6.63 [2019-03-28 22:33:02,082 INFO L451 ceAbstractionStarter]: At program point L12-2(lines 12 18) the Hoare annotation is: true 14.64/6.64 [2019-03-28 22:33:02,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.03 10:33:02 BasicIcfg 14.64/6.64 [2019-03-28 22:33:02,091 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- 14.64/6.64 [2019-03-28 22:33:02,091 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- 14.64/6.64 [2019-03-28 22:33:02,091 INFO L271 PluginConnector]: Initializing BuchiAutomizer... 14.64/6.64 [2019-03-28 22:33:02,095 INFO L276 PluginConnector]: BuchiAutomizer initialized 14.64/6.64 [2019-03-28 22:33:02,095 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 14.64/6.64 [2019-03-28 22:33:02,096 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.03 10:33:01" (1/5) ... 14.64/6.64 [2019-03-28 22:33:02,096 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1ce7237f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.03 10:33:02, skipping insertion in model container 14.64/6.64 [2019-03-28 22:33:02,097 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 14.64/6.64 [2019-03-28 22:33:02,097 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:33:01" (2/5) ... 14.64/6.64 [2019-03-28 22:33:02,097 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1ce7237f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.03 10:33:02, skipping insertion in model container 14.64/6.64 [2019-03-28 22:33:02,097 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 14.64/6.64 [2019-03-28 22:33:02,097 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 10:33:01" (3/5) ... 14.64/6.64 [2019-03-28 22:33:02,098 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1ce7237f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.03 10:33:02, skipping insertion in model container 14.64/6.64 [2019-03-28 22:33:02,098 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 14.64/6.64 [2019-03-28 22:33:02,098 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 28.03 10:33:01" (4/5) ... 14.64/6.64 [2019-03-28 22:33:02,098 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1ce7237f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.03 10:33:02, skipping insertion in model container 14.64/6.64 [2019-03-28 22:33:02,099 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 14.64/6.64 [2019-03-28 22:33:02,099 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.03 10:33:02" (5/5) ... 14.64/6.64 [2019-03-28 22:33:02,100 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 14.64/6.64 [2019-03-28 22:33:02,128 INFO L133 ementStrategyFactory]: Using default assertion order modulation 14.64/6.64 [2019-03-28 22:33:02,128 INFO L374 BuchiCegarLoop]: Interprodecural is true 14.64/6.64 [2019-03-28 22:33:02,129 INFO L375 BuchiCegarLoop]: Hoare is true 14.64/6.64 [2019-03-28 22:33:02,129 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates 14.64/6.64 [2019-03-28 22:33:02,129 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE 14.64/6.64 [2019-03-28 22:33:02,129 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION 14.64/6.64 [2019-03-28 22:33:02,129 INFO L379 BuchiCegarLoop]: Difference is false 14.64/6.64 [2019-03-28 22:33:02,129 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA 14.64/6.64 [2019-03-28 22:33:02,129 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== 14.64/6.64 [2019-03-28 22:33:02,133 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states. 14.64/6.64 [2019-03-28 22:33:02,150 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 14.64/6.64 [2019-03-28 22:33:02,150 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 14.64/6.64 [2019-03-28 22:33:02,150 INFO L119 BuchiIsEmpty]: Starting construction of run 14.64/6.64 [2019-03-28 22:33:02,156 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] 14.64/6.64 [2019-03-28 22:33:02,156 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] 14.64/6.64 [2019-03-28 22:33:02,156 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ 14.64/6.64 [2019-03-28 22:33:02,156 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states. 14.64/6.64 [2019-03-28 22:33:02,157 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 14.64/6.64 [2019-03-28 22:33:02,157 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 14.64/6.64 [2019-03-28 22:33:02,157 INFO L119 BuchiIsEmpty]: Starting construction of run 14.64/6.64 [2019-03-28 22:33:02,157 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] 14.64/6.64 [2019-03-28 22:33:02,158 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] 14.64/6.64 [2019-03-28 22:33:02,163 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [28] ULTIMATE.startENTRY-->L12-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~c~0_1 0) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~flag~0_1 1)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~flag~0=v_ULTIMATE.start_main_~flag~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~flag~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~c~0, ULTIMATE.start_main_~x~0] 3#L12-2true 14.64/6.64 [2019-03-28 22:33:02,163 INFO L796 eck$LassoCheckResult]: Loop: 3#L12-2true [37] L12-2-->L13: Formula: (> v_ULTIMATE.start_main_~flag~0_7 0) InVars {ULTIMATE.start_main_~flag~0=v_ULTIMATE.start_main_~flag~0_7} OutVars{ULTIMATE.start_main_~flag~0=v_ULTIMATE.start_main_~flag~0_7} AuxVars[] AssignedVars[] 6#L13true [36] L13-->L13-2: Formula: (> v_ULTIMATE.start_main_~y~0_7 v_ULTIMATE.start_main_~x~0_9) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} AuxVars[] AssignedVars[] 5#L13-2true [29] L13-2-->L12-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_6 (+ v_ULTIMATE.start_main_~x~0_7 1)) (= v_ULTIMATE.start_main_~c~0_6 (+ v_ULTIMATE.start_main_~c~0_7 1))) InVars {ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_6, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~c~0, ULTIMATE.start_main_~x~0] 3#L12-2true 14.64/6.64 [2019-03-28 22:33:02,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 14.64/6.64 [2019-03-28 22:33:02,169 INFO L82 PathProgramCache]: Analyzing trace with hash 59, now seen corresponding path program 1 times 14.64/6.64 [2019-03-28 22:33:02,172 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 14.64/6.64 [2019-03-28 22:33:02,172 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 14.64/6.64 [2019-03-28 22:33:02,201 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 14.64/6.64 [2019-03-28 22:33:02,201 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 14.64/6.64 [2019-03-28 22:33:02,201 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 14.64/6.64 [2019-03-28 22:33:02,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 14.64/6.64 [2019-03-28 22:33:02,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 14.64/6.64 [2019-03-28 22:33:02,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 14.64/6.64 [2019-03-28 22:33:02,247 INFO L82 PathProgramCache]: Analyzing trace with hash 66493, now seen corresponding path program 1 times 14.64/6.64 [2019-03-28 22:33:02,247 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 14.64/6.64 [2019-03-28 22:33:02,247 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 14.64/6.64 [2019-03-28 22:33:02,249 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 14.64/6.64 [2019-03-28 22:33:02,249 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 14.64/6.64 [2019-03-28 22:33:02,249 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 14.64/6.64 [2019-03-28 22:33:02,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 14.64/6.64 [2019-03-28 22:33:02,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 14.64/6.64 [2019-03-28 22:33:02,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 14.64/6.64 [2019-03-28 22:33:02,262 INFO L82 PathProgramCache]: Analyzing trace with hash 1794371, now seen corresponding path program 1 times 14.64/6.64 [2019-03-28 22:33:02,262 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 14.64/6.64 [2019-03-28 22:33:02,262 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 14.64/6.64 [2019-03-28 22:33:02,264 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 14.64/6.64 [2019-03-28 22:33:02,264 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 14.64/6.64 [2019-03-28 22:33:02,264 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 14.64/6.64 [2019-03-28 22:33:02,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 14.64/6.64 [2019-03-28 22:33:02,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 14.64/6.64 [2019-03-28 22:33:02,325 INFO L216 LassoAnalysis]: Preferences: 14.64/6.64 [2019-03-28 22:33:02,327 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 14.64/6.64 [2019-03-28 22:33:02,327 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 14.64/6.64 [2019-03-28 22:33:02,327 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 14.64/6.64 [2019-03-28 22:33:02,327 INFO L127 ssoRankerPreferences]: Use exernal solver: true 14.64/6.64 [2019-03-28 22:33:02,327 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 14.64/6.64 [2019-03-28 22:33:02,328 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 14.64/6.64 [2019-03-28 22:33:02,328 INFO L130 ssoRankerPreferences]: Path of dumped script: 14.64/6.64 [2019-03-28 22:33:02,328 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop 14.64/6.64 [2019-03-28 22:33:02,328 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 14.64/6.64 [2019-03-28 22:33:02,328 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 14.64/6.64 [2019-03-28 22:33:02,350 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 14.64/6.64 [2019-03-28 22:33:02,360 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 14.64/6.64 [2019-03-28 22:33:02,366 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 14.64/6.64 [2019-03-28 22:33:02,371 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 14.64/6.64 [2019-03-28 22:33:02,380 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 14.64/6.64 [2019-03-28 22:33:02,461 INFO L300 LassoAnalysis]: Preprocessing complete. 14.64/6.64 [2019-03-28 22:33:02,462 INFO L412 LassoAnalysis]: Checking for nontermination... 14.64/6.64 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 14.64/6.64 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 14.64/6.64 Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 14.64/6.64 [2019-03-28 22:33:02,470 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 14.64/6.64 [2019-03-28 22:33:02,470 INFO L163 nArgumentSynthesizer]: Using integer mode. 14.64/6.64 [2019-03-28 22:33:02,504 INFO L445 LassoAnalysis]: Proved nontermination for one component. 14.64/6.64 [2019-03-28 22:33:02,504 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: [] 14.64/6.64 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 14.64/6.64 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 14.64/6.64 Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 14.64/6.64 [2019-03-28 22:33:02,511 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 14.64/6.64 [2019-03-28 22:33:02,511 INFO L163 nArgumentSynthesizer]: Using integer mode. 14.64/6.64 [2019-03-28 22:33:02,539 INFO L445 LassoAnalysis]: Proved nontermination for one component. 14.64/6.64 [2019-03-28 22:33:02,539 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: [] 14.64/6.64 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 14.64/6.64 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 14.64/6.64 Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 14.64/6.64 [2019-03-28 22:33:02,544 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 14.64/6.64 [2019-03-28 22:33:02,544 INFO L163 nArgumentSynthesizer]: Using integer mode. 14.64/6.64 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 14.64/6.64 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 14.64/6.64 Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 14.64/6.64 [2019-03-28 22:33:02,577 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true 14.64/6.64 [2019-03-28 22:33:02,577 INFO L163 nArgumentSynthesizer]: Using integer mode. 14.64/6.64 [2019-03-28 22:33:02,614 INFO L445 LassoAnalysis]: Proved nontermination for one component. 14.64/6.64 [2019-03-28 22:33:02,615 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0=0} Honda state: {ULTIMATE.start_main_~c~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~c~0=0}, {ULTIMATE.start_main_~c~0=-1}, {ULTIMATE.start_main_~c~0=2}] Lambdas: [4, 3, 1] Nus: [0, 1] 14.64/6.64 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 14.64/6.64 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 14.64/6.64 Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 14.64/6.64 [2019-03-28 22:33:02,643 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 14.64/6.64 [2019-03-28 22:33:02,643 INFO L163 nArgumentSynthesizer]: Using integer mode. 14.64/6.64 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 14.64/6.64 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 14.64/6.64 Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 14.64/6.64 [2019-03-28 22:33:02,675 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true 14.64/6.64 [2019-03-28 22:33:02,675 INFO L163 nArgumentSynthesizer]: Using integer mode. 14.64/6.64 [2019-03-28 22:33:02,857 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. 14.64/6.64 [2019-03-28 22:33:02,859 INFO L216 LassoAnalysis]: Preferences: 14.64/6.64 [2019-03-28 22:33:02,877 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 14.64/6.64 [2019-03-28 22:33:02,877 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 14.64/6.64 [2019-03-28 22:33:02,878 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 14.64/6.64 [2019-03-28 22:33:02,878 INFO L127 ssoRankerPreferences]: Use exernal solver: false 14.64/6.64 [2019-03-28 22:33:02,878 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 14.64/6.64 [2019-03-28 22:33:02,878 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 14.64/6.64 [2019-03-28 22:33:02,878 INFO L130 ssoRankerPreferences]: Path of dumped script: 14.64/6.64 [2019-03-28 22:33:02,878 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop 14.64/6.64 [2019-03-28 22:33:02,878 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 14.64/6.64 [2019-03-28 22:33:02,879 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 14.64/6.64 [2019-03-28 22:33:02,881 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 14.64/6.64 [2019-03-28 22:33:02,885 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 14.64/6.64 [2019-03-28 22:33:02,888 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 14.64/6.64 [2019-03-28 22:33:02,892 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 14.64/6.64 [2019-03-28 22:33:02,900 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 14.64/6.64 [2019-03-28 22:33:02,964 INFO L300 LassoAnalysis]: Preprocessing complete. 14.64/6.64 [2019-03-28 22:33:02,969 INFO L497 LassoAnalysis]: Using template 'affine'. 14.64/6.64 [2019-03-28 22:33:02,971 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 14.64/6.64 Termination analysis: LINEAR_WITH_GUESSES 14.64/6.64 Number of strict supporting invariants: 0 14.64/6.64 Number of non-strict supporting invariants: 1 14.64/6.64 Consider only non-deceasing supporting invariants: true 14.64/6.64 Simplify termination arguments: true 14.64/6.64 Simplify supporting invariants: trueOverapproximate stem: false 14.64/6.64 [2019-03-28 22:33:02,973 INFO L339 nArgumentSynthesizer]: Template has degree 0. 14.64/6.64 [2019-03-28 22:33:02,973 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 14.64/6.64 [2019-03-28 22:33:02,973 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 14.64/6.64 [2019-03-28 22:33:02,974 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 14.64/6.64 [2019-03-28 22:33:02,978 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. 14.64/6.64 [2019-03-28 22:33:02,978 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. 14.64/6.64 [2019-03-28 22:33:02,985 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. 14.64/6.64 [2019-03-28 22:33:02,986 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 14.64/6.64 Termination analysis: LINEAR_WITH_GUESSES 14.64/6.64 Number of strict supporting invariants: 0 14.64/6.64 Number of non-strict supporting invariants: 1 14.64/6.64 Consider only non-deceasing supporting invariants: true 14.64/6.64 Simplify termination arguments: true 14.64/6.64 Simplify supporting invariants: trueOverapproximate stem: false 14.64/6.64 [2019-03-28 22:33:02,987 INFO L339 nArgumentSynthesizer]: Template has degree 0. 14.64/6.64 [2019-03-28 22:33:02,987 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 14.64/6.64 [2019-03-28 22:33:02,987 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 14.64/6.64 [2019-03-28 22:33:02,987 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 14.64/6.64 [2019-03-28 22:33:02,990 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. 14.64/6.64 [2019-03-28 22:33:02,990 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. 14.64/6.64 [2019-03-28 22:33:02,998 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. 14.64/6.64 [2019-03-28 22:33:02,998 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 14.64/6.64 Termination analysis: LINEAR_WITH_GUESSES 14.64/6.64 Number of strict supporting invariants: 0 14.64/6.64 Number of non-strict supporting invariants: 1 14.64/6.64 Consider only non-deceasing supporting invariants: true 14.64/6.64 Simplify termination arguments: true 14.64/6.64 Simplify supporting invariants: trueOverapproximate stem: false 14.64/6.64 [2019-03-28 22:33:02,999 INFO L339 nArgumentSynthesizer]: Template has degree 0. 14.64/6.64 [2019-03-28 22:33:02,999 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 14.64/6.64 [2019-03-28 22:33:03,000 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 14.64/6.64 [2019-03-28 22:33:03,000 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 14.64/6.64 [2019-03-28 22:33:03,000 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 14.64/6.64 [2019-03-28 22:33:03,001 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 14.64/6.64 [2019-03-28 22:33:03,001 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 14.64/6.64 [2019-03-28 22:33:03,006 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. 14.64/6.64 [2019-03-28 22:33:03,006 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 14.64/6.64 Termination analysis: LINEAR_WITH_GUESSES 14.64/6.64 Number of strict supporting invariants: 0 14.64/6.64 Number of non-strict supporting invariants: 1 14.64/6.64 Consider only non-deceasing supporting invariants: true 14.64/6.64 Simplify termination arguments: true 14.64/6.64 Simplify supporting invariants: trueOverapproximate stem: false 14.64/6.64 [2019-03-28 22:33:03,007 INFO L339 nArgumentSynthesizer]: Template has degree 0. 14.64/6.64 [2019-03-28 22:33:03,007 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 14.64/6.64 [2019-03-28 22:33:03,007 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 14.64/6.64 [2019-03-28 22:33:03,008 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 14.64/6.64 [2019-03-28 22:33:03,008 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 14.64/6.64 [2019-03-28 22:33:03,009 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 14.64/6.64 [2019-03-28 22:33:03,009 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 14.64/6.64 [2019-03-28 22:33:03,014 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. 14.64/6.64 [2019-03-28 22:33:03,021 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. 14.64/6.64 [2019-03-28 22:33:03,022 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. 14.64/6.64 [2019-03-28 22:33:03,024 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... 14.64/6.64 [2019-03-28 22:33:03,024 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. 14.64/6.64 [2019-03-28 22:33:03,024 INFO L518 LassoAnalysis]: Proved termination. 14.64/6.64 [2019-03-28 22:33:03,025 INFO L520 LassoAnalysis]: Termination argument consisting of: 14.64/6.64 Ranking function f(ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~y~0) = -1*ULTIMATE.start_main_~x~0 + 1*ULTIMATE.start_main_~y~0 14.64/6.64 Supporting invariants [] 14.64/6.64 [2019-03-28 22:33:03,027 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed 14.64/6.64 [2019-03-28 22:33:03,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 14.64/6.64 [2019-03-28 22:33:03,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 14.64/6.64 [2019-03-28 22:33:03,075 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core 14.64/6.64 [2019-03-28 22:33:03,077 INFO L279 TraceCheckSpWp]: Computing forward predicates... 14.64/6.64 [2019-03-28 22:33:03,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 14.64/6.64 [2019-03-28 22:33:03,089 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core 14.64/6.64 [2019-03-28 22:33:03,089 INFO L279 TraceCheckSpWp]: Computing forward predicates... 14.64/6.64 [2019-03-28 22:33:03,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. 14.64/6.64 [2019-03-28 22:33:03,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 14.64/6.64 [2019-03-28 22:33:03,140 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core 14.64/6.64 [2019-03-28 22:33:03,141 INFO L279 TraceCheckSpWp]: Computing forward predicates... 14.64/6.64 [2019-03-28 22:33:03,160 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 3 predicates after loop cannibalization 14.64/6.64 [2019-03-28 22:33:03,165 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 14.64/6.64 [2019-03-28 22:33:03,167 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 4 states. Second operand 4 states. 14.64/6.64 [2019-03-28 22:33:03,259 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 4 states.. Second operand 4 states. Result 16 states and 26 transitions. Complement of second has 9 states. 14.64/6.64 [2019-03-28 22:33:03,259 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 2 accepting loop states 14.64/6.64 [2019-03-28 22:33:03,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. 14.64/6.64 [2019-03-28 22:33:03,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 19 transitions. 14.64/6.64 [2019-03-28 22:33:03,264 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 19 transitions. Stem has 1 letters. Loop has 3 letters. 14.64/6.64 [2019-03-28 22:33:03,265 INFO L116 BuchiAccepts]: Finished buchiAccepts. 14.64/6.64 [2019-03-28 22:33:03,265 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 19 transitions. Stem has 4 letters. Loop has 3 letters. 14.64/6.64 [2019-03-28 22:33:03,266 INFO L116 BuchiAccepts]: Finished buchiAccepts. 14.64/6.64 [2019-03-28 22:33:03,266 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 19 transitions. Stem has 1 letters. Loop has 6 letters. 14.64/6.64 [2019-03-28 22:33:03,266 INFO L116 BuchiAccepts]: Finished buchiAccepts. 14.64/6.64 [2019-03-28 22:33:03,272 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 26 transitions. 14.64/6.64 [2019-03-28 22:33:03,274 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 14.64/6.64 [2019-03-28 22:33:03,280 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 15 states and 25 transitions. 14.64/6.64 [2019-03-28 22:33:03,282 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 14.64/6.64 [2019-03-28 22:33:03,282 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 14.64/6.64 [2019-03-28 22:33:03,283 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 25 transitions. 14.64/6.64 [2019-03-28 22:33:03,283 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. 14.64/6.64 [2019-03-28 22:33:03,283 INFO L706 BuchiCegarLoop]: Abstraction has 15 states and 25 transitions. 14.64/6.64 [2019-03-28 22:33:03,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 25 transitions. 14.64/6.64 [2019-03-28 22:33:03,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 10. 14.64/6.64 [2019-03-28 22:33:03,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. 14.64/6.64 [2019-03-28 22:33:03,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 19 transitions. 14.64/6.64 [2019-03-28 22:33:03,313 INFO L729 BuchiCegarLoop]: Abstraction has 10 states and 19 transitions. 14.64/6.64 [2019-03-28 22:33:03,313 INFO L609 BuchiCegarLoop]: Abstraction has 10 states and 19 transitions. 14.64/6.64 [2019-03-28 22:33:03,313 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ 14.64/6.64 [2019-03-28 22:33:03,314 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 19 transitions. 14.64/6.64 [2019-03-28 22:33:03,314 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 14.64/6.64 [2019-03-28 22:33:03,315 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 14.64/6.64 [2019-03-28 22:33:03,315 INFO L119 BuchiIsEmpty]: Starting construction of run 14.64/6.64 [2019-03-28 22:33:03,315 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] 14.64/6.64 [2019-03-28 22:33:03,315 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] 14.64/6.64 [2019-03-28 22:33:03,317 INFO L794 eck$LassoCheckResult]: Stem: 78#ULTIMATE.startENTRY [28] ULTIMATE.startENTRY-->L12-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~c~0_1 0) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~flag~0_1 1)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~flag~0=v_ULTIMATE.start_main_~flag~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~flag~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~c~0, ULTIMATE.start_main_~x~0] 79#L12-2 [38] L12-2-->L13: Formula: (< v_ULTIMATE.start_main_~flag~0_7 0) InVars {ULTIMATE.start_main_~flag~0=v_ULTIMATE.start_main_~flag~0_7} OutVars{ULTIMATE.start_main_~flag~0=v_ULTIMATE.start_main_~flag~0_7} AuxVars[] AssignedVars[] 75#L13 14.64/6.64 [2019-03-28 22:33:03,318 INFO L796 eck$LassoCheckResult]: Loop: 75#L13 [30] L13-->L13-2: Formula: (and (= v_ULTIMATE.start_main_~flag~0_8 0) (<= v_ULTIMATE.start_main_~y~0_6 v_ULTIMATE.start_main_~x~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_~flag~0=v_ULTIMATE.start_main_~flag~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~flag~0] 80#L13-2 [29] L13-2-->L12-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_6 (+ v_ULTIMATE.start_main_~x~0_7 1)) (= v_ULTIMATE.start_main_~c~0_6 (+ v_ULTIMATE.start_main_~c~0_7 1))) InVars {ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_6, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~c~0, ULTIMATE.start_main_~x~0] 74#L12-2 [37] L12-2-->L13: Formula: (> v_ULTIMATE.start_main_~flag~0_7 0) InVars {ULTIMATE.start_main_~flag~0=v_ULTIMATE.start_main_~flag~0_7} OutVars{ULTIMATE.start_main_~flag~0=v_ULTIMATE.start_main_~flag~0_7} AuxVars[] AssignedVars[] 75#L13 14.64/6.64 [2019-03-28 22:33:03,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 14.64/6.64 [2019-03-28 22:33:03,318 INFO L82 PathProgramCache]: Analyzing trace with hash 1867, now seen corresponding path program 1 times 14.64/6.64 [2019-03-28 22:33:03,318 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 14.64/6.64 [2019-03-28 22:33:03,318 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 14.64/6.64 [2019-03-28 22:33:03,320 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 14.64/6.64 [2019-03-28 22:33:03,320 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 14.64/6.64 [2019-03-28 22:33:03,320 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 14.64/6.64 [2019-03-28 22:33:03,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 14.64/6.64 [2019-03-28 22:33:03,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. 14.64/6.64 [2019-03-28 22:33:03,354 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. 14.64/6.64 [2019-03-28 22:33:03,354 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 14.64/6.64 [2019-03-28 22:33:03,356 INFO L799 eck$LassoCheckResult]: stem already infeasible 14.64/6.64 [2019-03-28 22:33:03,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 14.64/6.64 [2019-03-28 22:33:03,357 INFO L82 PathProgramCache]: Analyzing trace with hash 59557, now seen corresponding path program 1 times 14.64/6.64 [2019-03-28 22:33:03,357 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 14.64/6.64 [2019-03-28 22:33:03,357 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 14.64/6.64 [2019-03-28 22:33:03,358 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 14.64/6.64 [2019-03-28 22:33:03,358 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 14.64/6.64 [2019-03-28 22:33:03,358 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 14.64/6.64 [2019-03-28 22:33:03,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 14.64/6.64 [2019-03-28 22:33:03,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. 14.64/6.64 [2019-03-28 22:33:03,369 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. 14.64/6.64 [2019-03-28 22:33:03,370 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 14.64/6.64 [2019-03-28 22:33:03,370 INFO L811 eck$LassoCheckResult]: loop already infeasible 14.64/6.64 [2019-03-28 22:33:03,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. 14.64/6.64 [2019-03-28 22:33:03,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 14.64/6.64 [2019-03-28 22:33:03,374 INFO L87 Difference]: Start difference. First operand 10 states and 19 transitions. cyclomatic complexity: 11 Second operand 3 states. 14.64/6.64 [2019-03-28 22:33:03,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. 14.64/6.64 [2019-03-28 22:33:03,404 INFO L93 Difference]: Finished difference Result 14 states and 23 transitions. 14.64/6.64 [2019-03-28 22:33:03,405 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 14.64/6.64 [2019-03-28 22:33:03,407 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 23 transitions. 14.64/6.64 [2019-03-28 22:33:03,408 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 14.64/6.64 [2019-03-28 22:33:03,409 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 14 states and 23 transitions. 14.64/6.64 [2019-03-28 22:33:03,409 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 14.64/6.64 [2019-03-28 22:33:03,410 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 14.64/6.64 [2019-03-28 22:33:03,410 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 23 transitions. 14.64/6.64 [2019-03-28 22:33:03,410 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. 14.64/6.64 [2019-03-28 22:33:03,410 INFO L706 BuchiCegarLoop]: Abstraction has 14 states and 23 transitions. 14.64/6.64 [2019-03-28 22:33:03,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 23 transitions. 14.64/6.64 [2019-03-28 22:33:03,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. 14.64/6.64 [2019-03-28 22:33:03,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. 14.64/6.64 [2019-03-28 22:33:03,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 22 transitions. 14.64/6.64 [2019-03-28 22:33:03,413 INFO L729 BuchiCegarLoop]: Abstraction has 13 states and 22 transitions. 14.64/6.64 [2019-03-28 22:33:03,413 INFO L609 BuchiCegarLoop]: Abstraction has 13 states and 22 transitions. 14.64/6.64 [2019-03-28 22:33:03,413 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ 14.64/6.64 [2019-03-28 22:33:03,414 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 22 transitions. 14.64/6.64 [2019-03-28 22:33:03,414 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 14.64/6.64 [2019-03-28 22:33:03,414 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 14.64/6.64 [2019-03-28 22:33:03,414 INFO L119 BuchiIsEmpty]: Starting construction of run 14.64/6.64 [2019-03-28 22:33:03,415 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] 14.64/6.64 [2019-03-28 22:33:03,415 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] 14.64/6.64 [2019-03-28 22:33:03,415 INFO L794 eck$LassoCheckResult]: Stem: 110#ULTIMATE.startENTRY [28] ULTIMATE.startENTRY-->L12-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~c~0_1 0) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~flag~0_1 1)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~flag~0=v_ULTIMATE.start_main_~flag~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~flag~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~c~0, ULTIMATE.start_main_~x~0] 105#L12-2 [37] L12-2-->L13: Formula: (> v_ULTIMATE.start_main_~flag~0_7 0) InVars {ULTIMATE.start_main_~flag~0=v_ULTIMATE.start_main_~flag~0_7} OutVars{ULTIMATE.start_main_~flag~0=v_ULTIMATE.start_main_~flag~0_7} AuxVars[] AssignedVars[] 106#L13 14.64/6.64 [2019-03-28 22:33:03,416 INFO L796 eck$LassoCheckResult]: Loop: 106#L13 [30] L13-->L13-2: Formula: (and (= v_ULTIMATE.start_main_~flag~0_8 0) (<= v_ULTIMATE.start_main_~y~0_6 v_ULTIMATE.start_main_~x~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_~flag~0=v_ULTIMATE.start_main_~flag~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~flag~0] 111#L13-2 [29] L13-2-->L12-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_6 (+ v_ULTIMATE.start_main_~x~0_7 1)) (= v_ULTIMATE.start_main_~c~0_6 (+ v_ULTIMATE.start_main_~c~0_7 1))) InVars {ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_6, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~c~0, ULTIMATE.start_main_~x~0] 112#L12-2 [37] L12-2-->L13: Formula: (> v_ULTIMATE.start_main_~flag~0_7 0) InVars {ULTIMATE.start_main_~flag~0=v_ULTIMATE.start_main_~flag~0_7} OutVars{ULTIMATE.start_main_~flag~0=v_ULTIMATE.start_main_~flag~0_7} AuxVars[] AssignedVars[] 106#L13 14.64/6.64 [2019-03-28 22:33:03,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 14.64/6.64 [2019-03-28 22:33:03,416 INFO L82 PathProgramCache]: Analyzing trace with hash 1866, now seen corresponding path program 1 times 14.64/6.64 [2019-03-28 22:33:03,416 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 14.64/6.64 [2019-03-28 22:33:03,416 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 14.64/6.64 [2019-03-28 22:33:03,418 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 14.64/6.64 [2019-03-28 22:33:03,418 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 14.64/6.64 [2019-03-28 22:33:03,418 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 14.64/6.64 [2019-03-28 22:33:03,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 14.64/6.64 [2019-03-28 22:33:03,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 14.64/6.64 [2019-03-28 22:33:03,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 14.64/6.64 [2019-03-28 22:33:03,423 INFO L82 PathProgramCache]: Analyzing trace with hash 59557, now seen corresponding path program 2 times 14.64/6.64 [2019-03-28 22:33:03,424 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 14.64/6.64 [2019-03-28 22:33:03,424 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 14.64/6.64 [2019-03-28 22:33:03,426 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 14.64/6.64 [2019-03-28 22:33:03,426 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 14.64/6.64 [2019-03-28 22:33:03,426 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 14.64/6.64 [2019-03-28 22:33:03,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 14.64/6.64 [2019-03-28 22:33:03,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. 14.64/6.64 [2019-03-28 22:33:03,439 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. 14.64/6.64 [2019-03-28 22:33:03,439 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 14.64/6.64 [2019-03-28 22:33:03,439 INFO L811 eck$LassoCheckResult]: loop already infeasible 14.64/6.64 [2019-03-28 22:33:03,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. 14.64/6.64 [2019-03-28 22:33:03,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 14.64/6.64 [2019-03-28 22:33:03,440 INFO L87 Difference]: Start difference. First operand 13 states and 22 transitions. cyclomatic complexity: 11 Second operand 3 states. 14.64/6.64 [2019-03-28 22:33:03,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. 14.64/6.64 [2019-03-28 22:33:03,450 INFO L93 Difference]: Finished difference Result 14 states and 19 transitions. 14.64/6.64 [2019-03-28 22:33:03,450 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 14.64/6.64 [2019-03-28 22:33:03,451 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 19 transitions. 14.64/6.64 [2019-03-28 22:33:03,452 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 14.64/6.64 [2019-03-28 22:33:03,453 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 14 states and 19 transitions. 14.64/6.64 [2019-03-28 22:33:03,453 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 14.64/6.64 [2019-03-28 22:33:03,453 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 14.64/6.64 [2019-03-28 22:33:03,453 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 19 transitions. 14.64/6.64 [2019-03-28 22:33:03,454 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. 14.64/6.64 [2019-03-28 22:33:03,454 INFO L706 BuchiCegarLoop]: Abstraction has 14 states and 19 transitions. 14.64/6.64 [2019-03-28 22:33:03,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 19 transitions. 14.64/6.64 [2019-03-28 22:33:03,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. 14.64/6.64 [2019-03-28 22:33:03,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. 14.64/6.64 [2019-03-28 22:33:03,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 18 transitions. 14.64/6.64 [2019-03-28 22:33:03,456 INFO L729 BuchiCegarLoop]: Abstraction has 13 states and 18 transitions. 14.64/6.64 [2019-03-28 22:33:03,456 INFO L609 BuchiCegarLoop]: Abstraction has 13 states and 18 transitions. 14.64/6.64 [2019-03-28 22:33:03,456 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ 14.64/6.64 [2019-03-28 22:33:03,457 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 18 transitions. 14.64/6.64 [2019-03-28 22:33:03,457 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 14.64/6.64 [2019-03-28 22:33:03,457 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 14.64/6.64 [2019-03-28 22:33:03,457 INFO L119 BuchiIsEmpty]: Starting construction of run 14.64/6.64 [2019-03-28 22:33:03,458 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] 14.64/6.64 [2019-03-28 22:33:03,458 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] 14.64/6.64 [2019-03-28 22:33:03,458 INFO L794 eck$LassoCheckResult]: Stem: 142#ULTIMATE.startENTRY [28] ULTIMATE.startENTRY-->L12-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~c~0_1 0) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~flag~0_1 1)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~flag~0=v_ULTIMATE.start_main_~flag~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~flag~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~c~0, ULTIMATE.start_main_~x~0] 143#L12-2 [37] L12-2-->L13: Formula: (> v_ULTIMATE.start_main_~flag~0_7 0) InVars {ULTIMATE.start_main_~flag~0=v_ULTIMATE.start_main_~flag~0_7} OutVars{ULTIMATE.start_main_~flag~0=v_ULTIMATE.start_main_~flag~0_7} AuxVars[] AssignedVars[] 139#L13 14.64/6.64 [2019-03-28 22:33:03,459 INFO L796 eck$LassoCheckResult]: Loop: 139#L13 [30] L13-->L13-2: Formula: (and (= v_ULTIMATE.start_main_~flag~0_8 0) (<= v_ULTIMATE.start_main_~y~0_6 v_ULTIMATE.start_main_~x~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_~flag~0=v_ULTIMATE.start_main_~flag~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~flag~0] 144#L13-2 [29] L13-2-->L12-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_6 (+ v_ULTIMATE.start_main_~x~0_7 1)) (= v_ULTIMATE.start_main_~c~0_6 (+ v_ULTIMATE.start_main_~c~0_7 1))) InVars {ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_6, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~c~0, ULTIMATE.start_main_~x~0] 138#L12-2 [38] L12-2-->L13: Formula: (< v_ULTIMATE.start_main_~flag~0_7 0) InVars {ULTIMATE.start_main_~flag~0=v_ULTIMATE.start_main_~flag~0_7} OutVars{ULTIMATE.start_main_~flag~0=v_ULTIMATE.start_main_~flag~0_7} AuxVars[] AssignedVars[] 139#L13 14.64/6.64 [2019-03-28 22:33:03,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 14.64/6.64 [2019-03-28 22:33:03,459 INFO L82 PathProgramCache]: Analyzing trace with hash 1866, now seen corresponding path program 2 times 14.64/6.64 [2019-03-28 22:33:03,459 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 14.64/6.64 [2019-03-28 22:33:03,459 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 14.64/6.64 [2019-03-28 22:33:03,461 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 14.64/6.64 [2019-03-28 22:33:03,461 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY 14.64/6.64 [2019-03-28 22:33:03,461 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 14.64/6.64 [2019-03-28 22:33:03,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 14.64/6.64 [2019-03-28 22:33:03,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 14.64/6.64 [2019-03-28 22:33:03,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 14.64/6.64 [2019-03-28 22:33:03,469 INFO L82 PathProgramCache]: Analyzing trace with hash 59558, now seen corresponding path program 1 times 14.64/6.64 [2019-03-28 22:33:03,469 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 14.64/6.64 [2019-03-28 22:33:03,469 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 14.64/6.64 [2019-03-28 22:33:03,471 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 14.64/6.64 [2019-03-28 22:33:03,471 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY 14.64/6.64 [2019-03-28 22:33:03,471 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 14.64/6.64 [2019-03-28 22:33:03,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 14.64/6.64 [2019-03-28 22:33:03,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. 14.64/6.64 [2019-03-28 22:33:03,481 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. 14.64/6.64 [2019-03-28 22:33:03,481 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 14.64/6.64 [2019-03-28 22:33:03,481 INFO L811 eck$LassoCheckResult]: loop already infeasible 14.64/6.64 [2019-03-28 22:33:03,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. 14.64/6.64 [2019-03-28 22:33:03,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 14.64/6.64 [2019-03-28 22:33:03,482 INFO L87 Difference]: Start difference. First operand 13 states and 18 transitions. cyclomatic complexity: 8 Second operand 3 states. 14.64/6.64 [2019-03-28 22:33:03,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. 14.64/6.64 [2019-03-28 22:33:03,488 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. 14.64/6.64 [2019-03-28 22:33:03,489 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 14.64/6.64 [2019-03-28 22:33:03,490 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 11 transitions. 14.64/6.64 [2019-03-28 22:33:03,491 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 14.64/6.64 [2019-03-28 22:33:03,491 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 0 states and 0 transitions. 14.64/6.64 [2019-03-28 22:33:03,491 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 14.64/6.64 [2019-03-28 22:33:03,491 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 14.64/6.64 [2019-03-28 22:33:03,491 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. 14.64/6.64 [2019-03-28 22:33:03,491 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. 14.64/6.64 [2019-03-28 22:33:03,492 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. 14.64/6.64 [2019-03-28 22:33:03,492 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. 14.64/6.64 [2019-03-28 22:33:03,492 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. 14.64/6.64 [2019-03-28 22:33:03,492 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ 14.64/6.64 [2019-03-28 22:33:03,492 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. 14.64/6.64 [2019-03-28 22:33:03,492 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 14.64/6.64 [2019-03-28 22:33:03,492 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true 14.64/6.64 [2019-03-28 22:33:03,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.03 10:33:03 BasicIcfg 14.64/6.64 [2019-03-28 22:33:03,499 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- 14.64/6.64 [2019-03-28 22:33:03,499 INFO L168 Benchmark]: Toolchain (without parser) took 2214.40 ms. Allocated memory was 649.6 MB in the beginning and 663.2 MB in the end (delta: 13.6 MB). Free memory was 559.6 MB in the beginning and 467.0 MB in the end (delta: 92.6 MB). Peak memory consumption was 106.2 MB. Max. memory is 50.3 GB. 14.64/6.64 [2019-03-28 22:33:03,501 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. 14.64/6.64 [2019-03-28 22:33:03,502 INFO L168 Benchmark]: CACSL2BoogieTranslator took 227.98 ms. Allocated memory is still 649.6 MB. Free memory was 559.6 MB in the beginning and 550.1 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 50.3 GB. 14.64/6.64 [2019-03-28 22:33:03,502 INFO L168 Benchmark]: Boogie Procedure Inliner took 104.02 ms. Allocated memory was 649.6 MB in the beginning and 663.2 MB in the end (delta: 13.6 MB). Free memory was 550.1 MB in the beginning and 629.8 MB in the end (delta: -79.6 MB). Peak memory consumption was 21.7 MB. Max. memory is 50.3 GB. 14.64/6.64 [2019-03-28 22:33:03,503 INFO L168 Benchmark]: Boogie Preprocessor took 20.84 ms. Allocated memory is still 663.2 MB. Free memory was 629.8 MB in the beginning and 626.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 50.3 GB. 14.64/6.64 [2019-03-28 22:33:03,504 INFO L168 Benchmark]: RCFGBuilder took 209.56 ms. Allocated memory is still 663.2 MB. Free memory was 626.7 MB in the beginning and 613.7 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 50.3 GB. 14.64/6.64 [2019-03-28 22:33:03,505 INFO L168 Benchmark]: BlockEncodingV2 took 83.53 ms. Allocated memory is still 663.2 MB. Free memory was 613.7 MB in the beginning and 607.3 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 50.3 GB. 14.64/6.64 [2019-03-28 22:33:03,505 INFO L168 Benchmark]: TraceAbstraction took 155.56 ms. Allocated memory is still 663.2 MB. Free memory was 607.3 MB in the beginning and 597.8 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 50.3 GB. 14.64/6.64 [2019-03-28 22:33:03,506 INFO L168 Benchmark]: BuchiAutomizer took 1407.56 ms. Allocated memory is still 663.2 MB. Free memory was 597.8 MB in the beginning and 467.0 MB in the end (delta: 130.8 MB). Peak memory consumption was 130.8 MB. Max. memory is 50.3 GB. 14.64/6.64 [2019-03-28 22:33:03,510 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### 14.64/6.64 --- Results --- 14.64/6.64 * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: 14.64/6.64 - StatisticsResult: Initial Icfg 14.64/6.64 8 locations, 10 edges 14.64/6.64 - StatisticsResult: Encoded RCFG 14.64/6.64 4 locations, 6 edges 14.64/6.64 * Results from de.uni_freiburg.informatik.ultimate.core: 14.64/6.64 - StatisticsResult: Toolchain Benchmarks 14.64/6.64 Benchmark results are: 14.64/6.64 * 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. 14.64/6.64 * CACSL2BoogieTranslator took 227.98 ms. Allocated memory is still 649.6 MB. Free memory was 559.6 MB in the beginning and 550.1 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 50.3 GB. 14.64/6.64 * Boogie Procedure Inliner took 104.02 ms. Allocated memory was 649.6 MB in the beginning and 663.2 MB in the end (delta: 13.6 MB). Free memory was 550.1 MB in the beginning and 629.8 MB in the end (delta: -79.6 MB). Peak memory consumption was 21.7 MB. Max. memory is 50.3 GB. 14.64/6.64 * Boogie Preprocessor took 20.84 ms. Allocated memory is still 663.2 MB. Free memory was 629.8 MB in the beginning and 626.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 50.3 GB. 14.64/6.64 * RCFGBuilder took 209.56 ms. Allocated memory is still 663.2 MB. Free memory was 626.7 MB in the beginning and 613.7 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 50.3 GB. 14.64/6.64 * BlockEncodingV2 took 83.53 ms. Allocated memory is still 663.2 MB. Free memory was 613.7 MB in the beginning and 607.3 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 50.3 GB. 14.64/6.64 * TraceAbstraction took 155.56 ms. Allocated memory is still 663.2 MB. Free memory was 607.3 MB in the beginning and 597.8 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 50.3 GB. 14.64/6.64 * BuchiAutomizer took 1407.56 ms. Allocated memory is still 663.2 MB. Free memory was 597.8 MB in the beginning and 467.0 MB in the end (delta: 130.8 MB). Peak memory consumption was 130.8 MB. Max. memory is 50.3 GB. 14.64/6.64 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: 14.64/6.64 - AllSpecificationsHoldResult: All specifications hold 14.64/6.64 We were not able to verify any specifiation because the program does not contain any specification. 14.64/6.64 - InvariantResult [Line: 12]: Loop Invariant 14.64/6.64 Derived loop invariant: 1 14.64/6.64 - StatisticsResult: Ultimate Automizer benchmark data 14.64/6.64 CFG has 1 procedures, 4 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=4occurred 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, 1 LocationsWithAnnotation, 1 PreInvPairs, 1 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available 14.64/6.64 - StatisticsResult: Constructed decomposition of program 14.64/6.64 Your program was decomposed into 4 terminating modules (3 trivial, 0 deterministic, 1 nondeterministic). One nondeterministic module has affine ranking function -1 * x + y and consists of 6 locations. 3 modules have a trivial ranking function, the largest among these consists of 3 locations. 14.64/6.64 - StatisticsResult: Timing statistics 14.64/6.64 BüchiAutomizer plugin needed 1.3s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 0.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 7 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 13 states and ocurred in iteration 2. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 14 SDtfs, 20 SDslu, 14 SDs, 0 SdLazy, 50 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI2 SFLT1 conc0 concLT0 SILN0 SILU0 SILI1 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax166 hnf100 lsp33 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 15ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s 14.64/6.64 - TerminationAnalysisResult: Termination proven 14.64/6.64 Buchi Automizer proved that your program is terminating 14.64/6.64 RESULT: Ultimate proved your program to be correct! 14.64/6.64 !SESSION 2019-03-28 22:32:57.986 ----------------------------------------------- 14.64/6.64 eclipse.buildId=unknown 14.64/6.64 java.version=1.8.0_181 14.64/6.64 java.vendor=Oracle Corporation 14.64/6.64 BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US 14.64/6.64 Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox2/benchmark/theBenchmark.c 14.64/6.64 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 14.64/6.64 14.64/6.64 !ENTRY org.eclipse.core.resources 2 10035 2019-03-28 22:33:03.744 14.64/6.64 !MESSAGE The workspace will exit with unsaved changes in this session. 14.64/6.64 Received shutdown request... 14.64/6.64 Ultimate: 14.64/6.64 GTK+ Version Check 14.64/6.64 EOF