14.74/7.01 YES 14.74/7.01 14.74/7.01 Ultimate: Cannot open display: 14.74/7.01 This is Ultimate 0.1.24-8dc7c08-m 14.74/7.01 [2019-03-29 02:03:31,368 INFO L170 SettingsManager]: Resetting all preferences to default values... 14.74/7.01 [2019-03-29 02:03:31,370 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values 14.74/7.01 [2019-03-29 02:03:31,382 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 14.74/7.01 [2019-03-29 02:03:31,383 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values 14.74/7.01 [2019-03-29 02:03:31,383 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values 14.74/7.01 [2019-03-29 02:03:31,385 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values 14.74/7.01 [2019-03-29 02:03:31,386 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values 14.74/7.01 [2019-03-29 02:03:31,388 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values 14.74/7.01 [2019-03-29 02:03:31,388 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values 14.74/7.01 [2019-03-29 02:03:31,389 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 14.74/7.01 [2019-03-29 02:03:31,389 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values 14.74/7.01 [2019-03-29 02:03:31,390 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values 14.74/7.01 [2019-03-29 02:03:31,391 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values 14.74/7.01 [2019-03-29 02:03:31,392 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values 14.74/7.01 [2019-03-29 02:03:31,393 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values 14.74/7.01 [2019-03-29 02:03:31,394 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values 14.74/7.01 [2019-03-29 02:03:31,396 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values 14.74/7.01 [2019-03-29 02:03:31,397 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values 14.74/7.01 [2019-03-29 02:03:31,399 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values 14.74/7.01 [2019-03-29 02:03:31,400 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values 14.74/7.01 [2019-03-29 02:03:31,401 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values 14.74/7.01 [2019-03-29 02:03:31,403 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 14.74/7.01 [2019-03-29 02:03:31,403 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... 14.74/7.01 [2019-03-29 02:03:31,403 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values 14.74/7.01 [2019-03-29 02:03:31,404 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values 14.74/7.01 [2019-03-29 02:03:31,404 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values 14.74/7.01 [2019-03-29 02:03:31,405 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... 14.74/7.01 [2019-03-29 02:03:31,406 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values 14.74/7.01 [2019-03-29 02:03:31,406 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values 14.74/7.01 [2019-03-29 02:03:31,407 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values 14.74/7.01 [2019-03-29 02:03:31,408 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values 14.74/7.01 [2019-03-29 02:03:31,409 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... 14.74/7.01 [2019-03-29 02:03:31,409 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values 14.74/7.01 [2019-03-29 02:03:31,409 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 14.74/7.01 [2019-03-29 02:03:31,410 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... 14.74/7.01 [2019-03-29 02:03:31,410 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values 14.74/7.01 [2019-03-29 02:03:31,411 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values 14.74/7.01 [2019-03-29 02:03:31,412 INFO L181 SettingsManager]: Finished resetting all preferences to default values... 14.74/7.01 [2019-03-29 02:03:31,412 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf 14.74/7.01 [2019-03-29 02:03:31,426 INFO L110 SettingsManager]: Loading preferences was successful 14.74/7.01 [2019-03-29 02:03:31,427 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: 14.74/7.01 [2019-03-29 02:03:31,428 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: 14.74/7.01 [2019-03-29 02:03:31,428 INFO L133 SettingsManager]: * Rewrite not-equals=true 14.74/7.01 [2019-03-29 02:03:31,428 INFO L133 SettingsManager]: * Create parallel compositions if possible=false 14.74/7.01 [2019-03-29 02:03:31,428 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE 14.74/7.01 [2019-03-29 02:03:31,429 INFO L133 SettingsManager]: * Use SBE=true 14.74/7.01 [2019-03-29 02:03:31,429 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: 14.74/7.01 [2019-03-29 02:03:31,429 INFO L133 SettingsManager]: * Use old map elimination=false 14.74/7.01 [2019-03-29 02:03:31,429 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false 14.74/7.01 [2019-03-29 02:03:31,429 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION 14.74/7.01 [2019-03-29 02:03:31,430 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true 14.74/7.01 [2019-03-29 02:03:31,430 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES 14.74/7.01 [2019-03-29 02:03:31,430 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true 14.74/7.01 [2019-03-29 02:03:31,430 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 14.74/7.01 [2019-03-29 02:03:31,430 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: 14.74/7.01 [2019-03-29 02:03:31,431 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false 14.74/7.01 [2019-03-29 02:03:31,431 INFO L133 SettingsManager]: * Check division by zero=IGNORE 14.74/7.01 [2019-03-29 02:03:31,431 INFO L133 SettingsManager]: * Check if freed pointer was valid=false 14.74/7.01 [2019-03-29 02:03:31,431 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false 14.74/7.01 [2019-03-29 02:03:31,431 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE 14.74/7.01 [2019-03-29 02:03:31,432 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: 14.74/7.01 [2019-03-29 02:03:31,432 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements 14.74/7.01 [2019-03-29 02:03:31,432 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump 14.74/7.01 [2019-03-29 02:03:31,432 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 14.74/7.01 [2019-03-29 02:03:31,432 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: 14.74/7.01 [2019-03-29 02:03:31,433 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles 14.74/7.01 [2019-03-29 02:03:31,433 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL 14.74/7.01 [2019-03-29 02:03:31,433 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 14.74/7.01 [2019-03-29 02:03:31,459 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp 14.74/7.01 [2019-03-29 02:03:31,472 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized 14.74/7.01 [2019-03-29 02:03:31,475 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. 14.74/7.01 [2019-03-29 02:03:31,477 INFO L271 PluginConnector]: Initializing CDTParser... 14.74/7.01 [2019-03-29 02:03:31,477 INFO L276 PluginConnector]: CDTParser initialized 14.74/7.01 [2019-03-29 02:03:31,478 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c 14.74/7.01 [2019-03-29 02:03:31,589 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/211acdfa432845ac95186631a67172d4/FLAGbeff0beda 14.74/7.01 [2019-03-29 02:03:31,927 INFO L307 CDTParser]: Found 1 translation units. 14.74/7.01 [2019-03-29 02:03:31,928 INFO L161 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c 14.74/7.01 [2019-03-29 02:03:31,935 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/211acdfa432845ac95186631a67172d4/FLAGbeff0beda 14.74/7.01 [2019-03-29 02:03:32,338 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/211acdfa432845ac95186631a67172d4 14.74/7.01 [2019-03-29 02:03:32,349 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### 14.74/7.01 [2019-03-29 02:03:32,351 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. 14.74/7.01 [2019-03-29 02:03:32,352 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- 14.74/7.01 [2019-03-29 02:03:32,352 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... 14.74/7.01 [2019-03-29 02:03:32,356 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized 14.74/7.01 [2019-03-29 02:03:32,357 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.03 02:03:32" (1/1) ... 14.74/7.01 [2019-03-29 02:03:32,360 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d3e8fdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 02:03:32, skipping insertion in model container 14.74/7.01 [2019-03-29 02:03:32,360 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.03 02:03:32" (1/1) ... 14.74/7.01 [2019-03-29 02:03:32,368 INFO L145 MainTranslator]: Starting translation in SV-COMP mode 14.74/7.01 [2019-03-29 02:03:32,385 INFO L176 MainTranslator]: Built tables and reachable declarations 14.74/7.01 [2019-03-29 02:03:32,541 INFO L206 PostProcessor]: Analyzing one entry point: main 14.74/7.01 [2019-03-29 02:03:32,545 INFO L191 MainTranslator]: Completed pre-run 14.74/7.01 [2019-03-29 02:03:32,561 INFO L206 PostProcessor]: Analyzing one entry point: main 14.74/7.01 [2019-03-29 02:03:32,576 INFO L195 MainTranslator]: Completed translation 14.74/7.01 [2019-03-29 02:03:32,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 02:03:32 WrapperNode 14.74/7.01 [2019-03-29 02:03:32,577 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- 14.74/7.01 [2019-03-29 02:03:32,578 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- 14.74/7.01 [2019-03-29 02:03:32,578 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... 14.74/7.01 [2019-03-29 02:03:32,578 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized 14.74/7.01 [2019-03-29 02:03:32,647 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 02:03:32" (1/1) ... 14.74/7.01 [2019-03-29 02:03:32,653 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 02:03:32" (1/1) ... 14.74/7.01 [2019-03-29 02:03:32,673 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- 14.74/7.01 [2019-03-29 02:03:32,674 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- 14.74/7.01 [2019-03-29 02:03:32,674 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... 14.74/7.01 [2019-03-29 02:03:32,674 INFO L276 PluginConnector]: Boogie Preprocessor initialized 14.74/7.01 [2019-03-29 02:03:32,684 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 02:03:32" (1/1) ... 14.74/7.01 [2019-03-29 02:03:32,684 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 02:03:32" (1/1) ... 14.74/7.01 [2019-03-29 02:03:32,685 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 02:03:32" (1/1) ... 14.74/7.01 [2019-03-29 02:03:32,685 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 02:03:32" (1/1) ... 14.74/7.01 [2019-03-29 02:03:32,687 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 02:03:32" (1/1) ... 14.74/7.01 [2019-03-29 02:03:32,692 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 02:03:32" (1/1) ... 14.74/7.01 [2019-03-29 02:03:32,693 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 02:03:32" (1/1) ... 14.74/7.01 [2019-03-29 02:03:32,694 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- 14.74/7.01 [2019-03-29 02:03:32,694 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- 14.74/7.01 [2019-03-29 02:03:32,695 INFO L271 PluginConnector]: Initializing RCFGBuilder... 14.74/7.01 [2019-03-29 02:03:32,695 INFO L276 PluginConnector]: RCFGBuilder initialized 14.74/7.01 [2019-03-29 02:03:32,696 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 02:03:32" (1/1) ... 14.74/7.01 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 14.74/7.01 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) 14.74/7.01 Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 14.74/7.01 [2019-03-29 02:03:32,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start 14.74/7.01 [2019-03-29 02:03:32,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start 14.74/7.01 [2019-03-29 02:03:32,890 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) 14.74/7.01 [2019-03-29 02:03:32,890 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. 14.74/7.01 [2019-03-29 02:03:32,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.03 02:03:32 BoogieIcfgContainer 14.74/7.01 [2019-03-29 02:03:32,892 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- 14.74/7.01 [2019-03-29 02:03:32,892 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- 14.74/7.01 [2019-03-29 02:03:32,893 INFO L271 PluginConnector]: Initializing BlockEncodingV2... 14.74/7.01 [2019-03-29 02:03:32,895 INFO L276 PluginConnector]: BlockEncodingV2 initialized 14.74/7.01 [2019-03-29 02:03:32,896 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.03 02:03:32" (1/1) ... 14.74/7.01 [2019-03-29 02:03:32,911 INFO L313 BlockEncoder]: Initial Icfg 7 locations, 9 edges 14.74/7.01 [2019-03-29 02:03:32,913 INFO L258 BlockEncoder]: Using Remove infeasible edges 14.74/7.01 [2019-03-29 02:03:32,914 INFO L263 BlockEncoder]: Using Maximize final states 14.74/7.01 [2019-03-29 02:03:32,914 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false 14.74/7.01 [2019-03-29 02:03:32,915 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE 14.74/7.01 [2019-03-29 02:03:32,916 INFO L296 BlockEncoder]: Using Remove sink states 14.74/7.01 [2019-03-29 02:03:32,917 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true 14.74/7.01 [2019-03-29 02:03:32,918 INFO L179 BlockEncoder]: Using Rewrite not-equals 14.74/7.01 [2019-03-29 02:03:32,934 INFO L185 BlockEncoder]: Using Use SBE 14.74/7.01 [2019-03-29 02:03:32,949 INFO L200 BlockEncoder]: SBE split 1 edges 14.74/7.01 [2019-03-29 02:03:32,955 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility 14.74/7.01 [2019-03-29 02:03:32,957 INFO L71 MaximizeFinalStates]: 0 new accepting states 14.74/7.01 [2019-03-29 02:03:32,971 INFO L100 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding 14.74/7.01 [2019-03-29 02:03:32,973 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states 14.74/7.01 [2019-03-29 02:03:32,974 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility 14.74/7.01 [2019-03-29 02:03:32,975 INFO L71 MaximizeFinalStates]: 0 new accepting states 14.74/7.01 [2019-03-29 02:03:32,975 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding 14.74/7.01 [2019-03-29 02:03:32,975 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states 14.74/7.01 [2019-03-29 02:03:32,975 INFO L313 BlockEncoder]: Encoded RCFG 3 locations, 5 edges 14.74/7.01 [2019-03-29 02:03:32,976 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 29.03 02:03:32 BasicIcfg 14.74/7.01 [2019-03-29 02:03:32,976 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- 14.74/7.01 [2019-03-29 02:03:32,977 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- 14.74/7.01 [2019-03-29 02:03:32,977 INFO L271 PluginConnector]: Initializing TraceAbstraction... 14.74/7.01 [2019-03-29 02:03:32,980 INFO L276 PluginConnector]: TraceAbstraction initialized 14.74/7.01 [2019-03-29 02:03:32,981 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.03 02:03:32" (1/4) ... 14.74/7.01 [2019-03-29 02:03:32,981 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4eeba253 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.03 02:03:32, skipping insertion in model container 14.74/7.01 [2019-03-29 02:03:32,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 02:03:32" (2/4) ... 14.74/7.01 [2019-03-29 02:03:32,982 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4eeba253 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.03 02:03:32, skipping insertion in model container 14.74/7.01 [2019-03-29 02:03:32,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.03 02:03:32" (3/4) ... 14.74/7.01 [2019-03-29 02:03:32,983 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4eeba253 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.03 02:03:32, skipping insertion in model container 14.74/7.01 [2019-03-29 02:03:32,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 29.03 02:03:32" (4/4) ... 14.74/7.01 [2019-03-29 02:03:32,984 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 14.74/7.01 [2019-03-29 02:03:32,995 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION 14.74/7.01 [2019-03-29 02:03:33,003 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. 14.74/7.01 [2019-03-29 02:03:33,020 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. 14.74/7.01 [2019-03-29 02:03:33,049 INFO L133 ementStrategyFactory]: Using default assertion order modulation 14.74/7.01 [2019-03-29 02:03:33,049 INFO L382 AbstractCegarLoop]: Interprodecural is true 14.74/7.01 [2019-03-29 02:03:33,050 INFO L383 AbstractCegarLoop]: Hoare is true 14.74/7.01 [2019-03-29 02:03:33,050 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates 14.74/7.01 [2019-03-29 02:03:33,050 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE 14.74/7.01 [2019-03-29 02:03:33,050 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION 14.74/7.01 [2019-03-29 02:03:33,050 INFO L387 AbstractCegarLoop]: Difference is false 14.74/7.01 [2019-03-29 02:03:33,050 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA 14.74/7.01 [2019-03-29 02:03:33,051 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== 14.74/7.01 [2019-03-29 02:03:33,064 INFO L276 IsEmpty]: Start isEmpty. Operand 3 states. 14.74/7.01 [2019-03-29 02:03:33,070 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. 14.74/7.01 [2019-03-29 02:03:33,073 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. 14.74/7.01 [2019-03-29 02:03:33,123 INFO L448 ceAbstractionStarter]: For program point L17(lines 17 21) no Hoare annotation was computed. 14.74/7.01 [2019-03-29 02:03:33,123 INFO L451 ceAbstractionStarter]: At program point L17-2(lines 16 22) the Hoare annotation is: true 14.74/7.01 [2019-03-29 02:03:33,123 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. 14.74/7.01 [2019-03-29 02:03:33,131 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.03 02:03:33 BasicIcfg 14.74/7.01 [2019-03-29 02:03:33,132 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- 14.74/7.01 [2019-03-29 02:03:33,132 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- 14.74/7.01 [2019-03-29 02:03:33,132 INFO L271 PluginConnector]: Initializing BuchiAutomizer... 14.74/7.01 [2019-03-29 02:03:33,136 INFO L276 PluginConnector]: BuchiAutomizer initialized 14.74/7.01 [2019-03-29 02:03:33,137 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 14.74/7.01 [2019-03-29 02:03:33,137 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.03 02:03:32" (1/5) ... 14.74/7.01 [2019-03-29 02:03:33,137 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@40e16441 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.03 02:03:33, skipping insertion in model container 14.74/7.01 [2019-03-29 02:03:33,138 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 14.74/7.01 [2019-03-29 02:03:33,138 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 02:03:32" (2/5) ... 14.74/7.01 [2019-03-29 02:03:33,138 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@40e16441 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.03 02:03:33, skipping insertion in model container 14.74/7.01 [2019-03-29 02:03:33,138 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 14.74/7.01 [2019-03-29 02:03:33,138 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.03 02:03:32" (3/5) ... 14.74/7.01 [2019-03-29 02:03:33,139 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@40e16441 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.03 02:03:33, skipping insertion in model container 14.74/7.01 [2019-03-29 02:03:33,139 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 14.74/7.01 [2019-03-29 02:03:33,139 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 29.03 02:03:32" (4/5) ... 14.74/7.01 [2019-03-29 02:03:33,140 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@40e16441 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.03 02:03:33, skipping insertion in model container 14.74/7.01 [2019-03-29 02:03:33,140 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 14.74/7.01 [2019-03-29 02:03:33,140 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.03 02:03:33" (5/5) ... 14.74/7.01 [2019-03-29 02:03:33,141 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 14.74/7.01 [2019-03-29 02:03:33,170 INFO L133 ementStrategyFactory]: Using default assertion order modulation 14.74/7.01 [2019-03-29 02:03:33,171 INFO L374 BuchiCegarLoop]: Interprodecural is true 14.74/7.01 [2019-03-29 02:03:33,171 INFO L375 BuchiCegarLoop]: Hoare is true 14.74/7.01 [2019-03-29 02:03:33,171 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates 14.74/7.01 [2019-03-29 02:03:33,171 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE 14.74/7.01 [2019-03-29 02:03:33,171 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION 14.74/7.01 [2019-03-29 02:03:33,172 INFO L379 BuchiCegarLoop]: Difference is false 14.74/7.01 [2019-03-29 02:03:33,172 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA 14.74/7.01 [2019-03-29 02:03:33,172 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== 14.74/7.01 [2019-03-29 02:03:33,175 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. 14.74/7.01 [2019-03-29 02:03:33,194 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 14.74/7.01 [2019-03-29 02:03:33,194 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 14.74/7.01 [2019-03-29 02:03:33,194 INFO L119 BuchiIsEmpty]: Starting construction of run 14.74/7.01 [2019-03-29 02:03:33,200 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] 14.74/7.01 [2019-03-29 02:03:33,200 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] 14.74/7.01 [2019-03-29 02:03:33,200 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ 14.74/7.01 [2019-03-29 02:03:33,200 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. 14.74/7.01 [2019-03-29 02:03:33,201 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 14.74/7.01 [2019-03-29 02:03:33,201 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 14.74/7.01 [2019-03-29 02:03:33,201 INFO L119 BuchiIsEmpty]: Starting construction of run 14.74/7.01 [2019-03-29 02:03:33,201 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] 14.74/7.01 [2019-03-29 02:03:33,202 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] 14.74/7.01 [2019-03-29 02:03:33,207 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [27] ULTIMATE.startENTRY-->L17-2: Formula: (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[|v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~x~0] 3#L17-2true 14.74/7.01 [2019-03-29 02:03:33,207 INFO L796 eck$LassoCheckResult]: Loop: 3#L17-2true [35] L17-2-->L17: Formula: (< 0 v_ULTIMATE.start_main_~x~0_7) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 5#L17true [34] L17-->L17-2: Formula: (and (>= 0 v_ULTIMATE.start_main_~x~0_11) (= v_ULTIMATE.start_main_~x~0_10 (+ v_ULTIMATE.start_main_~x~0_11 1))) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 3#L17-2true 14.74/7.01 [2019-03-29 02:03:33,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 14.74/7.01 [2019-03-29 02:03:33,213 INFO L82 PathProgramCache]: Analyzing trace with hash 58, now seen corresponding path program 1 times 14.74/7.01 [2019-03-29 02:03:33,215 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 14.74/7.01 [2019-03-29 02:03:33,216 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 14.74/7.01 [2019-03-29 02:03:33,244 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 14.74/7.01 [2019-03-29 02:03:33,245 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 14.74/7.01 [2019-03-29 02:03:33,245 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 14.74/7.01 [2019-03-29 02:03:33,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 14.74/7.01 [2019-03-29 02:03:33,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 14.74/7.01 [2019-03-29 02:03:33,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 14.74/7.01 [2019-03-29 02:03:33,288 INFO L82 PathProgramCache]: Analyzing trace with hash 2080, now seen corresponding path program 1 times 14.74/7.01 [2019-03-29 02:03:33,288 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 14.74/7.01 [2019-03-29 02:03:33,289 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 14.74/7.01 [2019-03-29 02:03:33,290 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 14.74/7.01 [2019-03-29 02:03:33,291 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 14.74/7.01 [2019-03-29 02:03:33,291 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 14.74/7.01 [2019-03-29 02:03:33,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 14.74/7.01 [2019-03-29 02:03:33,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. 14.74/7.01 [2019-03-29 02:03:33,334 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. 14.74/7.01 [2019-03-29 02:03:33,335 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 14.74/7.01 [2019-03-29 02:03:33,340 INFO L811 eck$LassoCheckResult]: loop already infeasible 14.74/7.01 [2019-03-29 02:03:33,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. 14.74/7.01 [2019-03-29 02:03:33,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 14.74/7.01 [2019-03-29 02:03:33,359 INFO L87 Difference]: Start difference. First operand 3 states. Second operand 3 states. 14.74/7.01 [2019-03-29 02:03:33,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. 14.74/7.01 [2019-03-29 02:03:33,383 INFO L93 Difference]: Finished difference Result 4 states and 6 transitions. 14.74/7.01 [2019-03-29 02:03:33,384 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 14.74/7.01 [2019-03-29 02:03:33,388 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 4 states and 6 transitions. 14.74/7.01 [2019-03-29 02:03:33,388 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 14.74/7.01 [2019-03-29 02:03:33,394 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 4 states to 4 states and 6 transitions. 14.74/7.01 [2019-03-29 02:03:33,395 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 14.74/7.01 [2019-03-29 02:03:33,395 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 14.74/7.01 [2019-03-29 02:03:33,396 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 6 transitions. 14.74/7.01 [2019-03-29 02:03:33,396 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. 14.74/7.01 [2019-03-29 02:03:33,396 INFO L706 BuchiCegarLoop]: Abstraction has 4 states and 6 transitions. 14.74/7.01 [2019-03-29 02:03:33,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4 states and 6 transitions. 14.74/7.01 [2019-03-29 02:03:33,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4 to 4. 14.74/7.01 [2019-03-29 02:03:33,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. 14.74/7.01 [2019-03-29 02:03:33,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions. 14.74/7.01 [2019-03-29 02:03:33,427 INFO L729 BuchiCegarLoop]: Abstraction has 4 states and 6 transitions. 14.74/7.01 [2019-03-29 02:03:33,427 INFO L609 BuchiCegarLoop]: Abstraction has 4 states and 6 transitions. 14.74/7.01 [2019-03-29 02:03:33,427 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ 14.74/7.01 [2019-03-29 02:03:33,427 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states and 6 transitions. 14.74/7.01 [2019-03-29 02:03:33,427 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 14.74/7.01 [2019-03-29 02:03:33,428 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 14.74/7.01 [2019-03-29 02:03:33,428 INFO L119 BuchiIsEmpty]: Starting construction of run 14.74/7.01 [2019-03-29 02:03:33,428 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] 14.74/7.01 [2019-03-29 02:03:33,428 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] 14.74/7.01 [2019-03-29 02:03:33,429 INFO L794 eck$LassoCheckResult]: Stem: 19#ULTIMATE.startENTRY [27] ULTIMATE.startENTRY-->L17-2: Formula: (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[|v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~x~0] 16#L17-2 14.74/7.01 [2019-03-29 02:03:33,429 INFO L796 eck$LassoCheckResult]: Loop: 16#L17-2 [35] L17-2-->L17: Formula: (< 0 v_ULTIMATE.start_main_~x~0_7) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 17#L17 [28] L17-->L17-2: Formula: (and (< 0 v_ULTIMATE.start_main_~x~0_9) (= v_ULTIMATE.start_main_~x~0_8 (+ v_ULTIMATE.start_main_~x~0_9 (- 1)))) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 16#L17-2 14.74/7.01 [2019-03-29 02:03:33,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 14.74/7.01 [2019-03-29 02:03:33,429 INFO L82 PathProgramCache]: Analyzing trace with hash 58, now seen corresponding path program 2 times 14.74/7.01 [2019-03-29 02:03:33,429 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 14.74/7.01 [2019-03-29 02:03:33,430 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 14.74/7.01 [2019-03-29 02:03:33,431 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 14.74/7.01 [2019-03-29 02:03:33,431 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 14.74/7.01 [2019-03-29 02:03:33,432 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 14.74/7.01 [2019-03-29 02:03:33,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 14.74/7.01 [2019-03-29 02:03:33,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 14.74/7.01 [2019-03-29 02:03:33,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 14.74/7.01 [2019-03-29 02:03:33,435 INFO L82 PathProgramCache]: Analyzing trace with hash 2074, now seen corresponding path program 1 times 14.74/7.01 [2019-03-29 02:03:33,435 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 14.74/7.01 [2019-03-29 02:03:33,436 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 14.74/7.01 [2019-03-29 02:03:33,437 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 14.74/7.01 [2019-03-29 02:03:33,437 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY 14.74/7.01 [2019-03-29 02:03:33,437 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 14.74/7.01 [2019-03-29 02:03:33,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 14.74/7.01 [2019-03-29 02:03:33,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 14.74/7.01 [2019-03-29 02:03:33,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 14.74/7.01 [2019-03-29 02:03:33,442 INFO L82 PathProgramCache]: Analyzing trace with hash 56851, now seen corresponding path program 1 times 14.74/7.01 [2019-03-29 02:03:33,443 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 14.74/7.01 [2019-03-29 02:03:33,443 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 14.74/7.01 [2019-03-29 02:03:33,444 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 14.74/7.01 [2019-03-29 02:03:33,444 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 14.74/7.01 [2019-03-29 02:03:33,444 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 14.74/7.01 [2019-03-29 02:03:33,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 14.74/7.01 [2019-03-29 02:03:33,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 14.74/7.01 [2019-03-29 02:03:33,484 INFO L216 LassoAnalysis]: Preferences: 14.74/7.01 [2019-03-29 02:03:33,486 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 14.74/7.01 [2019-03-29 02:03:33,486 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 14.74/7.01 [2019-03-29 02:03:33,486 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 14.74/7.01 [2019-03-29 02:03:33,486 INFO L127 ssoRankerPreferences]: Use exernal solver: true 14.74/7.01 [2019-03-29 02:03:33,486 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 14.74/7.01 [2019-03-29 02:03:33,486 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 14.74/7.01 [2019-03-29 02:03:33,487 INFO L130 ssoRankerPreferences]: Path of dumped script: 14.74/7.01 [2019-03-29 02:03:33,487 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop 14.74/7.01 [2019-03-29 02:03:33,487 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 14.74/7.01 [2019-03-29 02:03:33,487 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 14.74/7.01 [2019-03-29 02:03:33,506 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 14.74/7.01 [2019-03-29 02:03:33,515 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 14.74/7.01 [2019-03-29 02:03:33,519 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 14.74/7.01 [2019-03-29 02:03:33,580 INFO L300 LassoAnalysis]: Preprocessing complete. 14.74/7.01 [2019-03-29 02:03:33,581 INFO L412 LassoAnalysis]: Checking for nontermination... 14.74/7.01 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 14.74/7.01 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 14.74/7.01 Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 14.74/7.01 [2019-03-29 02:03:33,588 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 14.74/7.01 [2019-03-29 02:03:33,588 INFO L163 nArgumentSynthesizer]: Using integer mode. 14.74/7.01 [2019-03-29 02:03:33,621 INFO L445 LassoAnalysis]: Proved nontermination for one component. 14.74/7.01 [2019-03-29 02:03:33,622 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: [] 14.74/7.01 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 14.74/7.01 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 14.74/7.01 Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 14.74/7.01 [2019-03-29 02:03:33,628 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 14.74/7.01 [2019-03-29 02:03:33,628 INFO L163 nArgumentSynthesizer]: Using integer mode. 14.74/7.01 [2019-03-29 02:03:33,656 INFO L445 LassoAnalysis]: Proved nontermination for one component. 14.74/7.01 [2019-03-29 02:03:33,656 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: [] 14.74/7.01 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 14.74/7.01 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 14.74/7.01 Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 14.74/7.01 [2019-03-29 02:03:33,662 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 14.74/7.01 [2019-03-29 02:03:33,662 INFO L163 nArgumentSynthesizer]: Using integer mode. 14.74/7.01 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 14.74/7.01 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 14.74/7.01 Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 14.74/7.01 [2019-03-29 02:03:33,695 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true 14.74/7.01 [2019-03-29 02:03:33,695 INFO L163 nArgumentSynthesizer]: Using integer mode. 14.74/7.01 [2019-03-29 02:03:33,726 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. 14.74/7.01 [2019-03-29 02:03:33,728 INFO L216 LassoAnalysis]: Preferences: 14.74/7.01 [2019-03-29 02:03:33,728 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 14.74/7.01 [2019-03-29 02:03:33,728 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 14.74/7.01 [2019-03-29 02:03:33,728 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 14.74/7.01 [2019-03-29 02:03:33,729 INFO L127 ssoRankerPreferences]: Use exernal solver: false 14.74/7.01 [2019-03-29 02:03:33,729 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 14.74/7.01 [2019-03-29 02:03:33,729 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 14.74/7.01 [2019-03-29 02:03:33,729 INFO L130 ssoRankerPreferences]: Path of dumped script: 14.74/7.01 [2019-03-29 02:03:33,729 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop 14.74/7.01 [2019-03-29 02:03:33,729 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 14.74/7.01 [2019-03-29 02:03:33,729 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 14.74/7.01 [2019-03-29 02:03:33,731 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 14.74/7.01 [2019-03-29 02:03:33,735 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 14.74/7.01 [2019-03-29 02:03:33,738 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 14.74/7.01 [2019-03-29 02:03:33,804 INFO L300 LassoAnalysis]: Preprocessing complete. 14.74/7.01 [2019-03-29 02:03:33,810 INFO L497 LassoAnalysis]: Using template 'affine'. 14.74/7.01 [2019-03-29 02:03:33,812 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 14.74/7.01 Termination analysis: LINEAR_WITH_GUESSES 14.74/7.01 Number of strict supporting invariants: 0 14.74/7.01 Number of non-strict supporting invariants: 1 14.74/7.01 Consider only non-deceasing supporting invariants: true 14.74/7.01 Simplify termination arguments: true 14.74/7.01 Simplify supporting invariants: trueOverapproximate stem: false 14.74/7.01 [2019-03-29 02:03:33,813 INFO L339 nArgumentSynthesizer]: Template has degree 0. 14.74/7.01 [2019-03-29 02:03:33,814 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 14.74/7.01 [2019-03-29 02:03:33,814 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 14.74/7.01 [2019-03-29 02:03:33,814 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 14.74/7.01 [2019-03-29 02:03:33,819 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. 14.74/7.01 [2019-03-29 02:03:33,819 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. 14.74/7.01 [2019-03-29 02:03:33,828 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. 14.74/7.01 [2019-03-29 02:03:33,828 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 14.74/7.01 Termination analysis: LINEAR_WITH_GUESSES 14.74/7.01 Number of strict supporting invariants: 0 14.74/7.01 Number of non-strict supporting invariants: 1 14.74/7.01 Consider only non-deceasing supporting invariants: true 14.74/7.01 Simplify termination arguments: true 14.74/7.01 Simplify supporting invariants: trueOverapproximate stem: false 14.74/7.01 [2019-03-29 02:03:33,829 INFO L339 nArgumentSynthesizer]: Template has degree 0. 14.74/7.01 [2019-03-29 02:03:33,830 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 14.74/7.01 [2019-03-29 02:03:33,830 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 14.74/7.01 [2019-03-29 02:03:33,830 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 14.74/7.01 [2019-03-29 02:03:33,834 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. 14.74/7.01 [2019-03-29 02:03:33,834 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. 14.74/7.01 [2019-03-29 02:03:33,843 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. 14.74/7.01 [2019-03-29 02:03:33,844 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 14.74/7.01 Termination analysis: LINEAR_WITH_GUESSES 14.74/7.01 Number of strict supporting invariants: 0 14.74/7.01 Number of non-strict supporting invariants: 1 14.74/7.01 Consider only non-deceasing supporting invariants: true 14.74/7.01 Simplify termination arguments: true 14.74/7.01 Simplify supporting invariants: trueOverapproximate stem: false 14.74/7.01 [2019-03-29 02:03:33,844 INFO L339 nArgumentSynthesizer]: Template has degree 0. 14.74/7.01 [2019-03-29 02:03:33,844 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 14.74/7.01 [2019-03-29 02:03:33,845 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 14.74/7.01 [2019-03-29 02:03:33,845 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 14.74/7.01 [2019-03-29 02:03:33,846 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 14.74/7.01 [2019-03-29 02:03:33,846 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 14.74/7.01 [2019-03-29 02:03:33,847 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 14.74/7.01 [2019-03-29 02:03:33,853 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. 14.74/7.01 [2019-03-29 02:03:33,858 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. 14.74/7.01 [2019-03-29 02:03:33,858 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. 14.74/7.01 [2019-03-29 02:03:33,860 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... 14.74/7.01 [2019-03-29 02:03:33,861 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. 14.74/7.01 [2019-03-29 02:03:33,861 INFO L518 LassoAnalysis]: Proved termination. 14.74/7.01 [2019-03-29 02:03:33,861 INFO L520 LassoAnalysis]: Termination argument consisting of: 14.74/7.01 Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 14.74/7.01 Supporting invariants [] 14.74/7.01 [2019-03-29 02:03:33,864 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed 14.74/7.01 [2019-03-29 02:03:33,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 14.74/7.01 [2019-03-29 02:03:33,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 14.74/7.01 [2019-03-29 02:03:33,909 WARN L254 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core 14.74/7.01 [2019-03-29 02:03:33,911 INFO L279 TraceCheckSpWp]: Computing forward predicates... 14.74/7.01 [2019-03-29 02:03:33,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 14.74/7.01 [2019-03-29 02:03:33,920 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core 14.74/7.01 [2019-03-29 02:03:33,921 INFO L279 TraceCheckSpWp]: Computing forward predicates... 14.74/7.01 [2019-03-29 02:03:33,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. 14.74/7.01 [2019-03-29 02:03:33,953 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization 14.74/7.01 [2019-03-29 02:03:33,956 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 2 loop predicates 14.74/7.01 [2019-03-29 02:03:33,957 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 4 states and 6 transitions. cyclomatic complexity: 3 Second operand 3 states. 14.74/7.01 [2019-03-29 02:03:33,989 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 4 states and 6 transitions. cyclomatic complexity: 3. Second operand 3 states. Result 10 states and 17 transitions. Complement of second has 6 states. 14.74/7.01 [2019-03-29 02:03:33,989 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states 14.74/7.01 [2019-03-29 02:03:33,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. 14.74/7.01 [2019-03-29 02:03:33,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. 14.74/7.01 [2019-03-29 02:03:33,993 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 1 letters. Loop has 2 letters. 14.74/7.01 [2019-03-29 02:03:33,994 INFO L116 BuchiAccepts]: Finished buchiAccepts. 14.74/7.01 [2019-03-29 02:03:33,994 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 3 letters. Loop has 2 letters. 14.74/7.01 [2019-03-29 02:03:33,995 INFO L116 BuchiAccepts]: Finished buchiAccepts. 14.74/7.01 [2019-03-29 02:03:33,995 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 1 letters. Loop has 4 letters. 14.74/7.01 [2019-03-29 02:03:33,995 INFO L116 BuchiAccepts]: Finished buchiAccepts. 14.74/7.01 [2019-03-29 02:03:33,999 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 17 transitions. 14.74/7.01 [2019-03-29 02:03:34,000 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 14.74/7.01 [2019-03-29 02:03:34,001 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 9 states and 15 transitions. 14.74/7.01 [2019-03-29 02:03:34,001 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 14.74/7.01 [2019-03-29 02:03:34,002 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 14.74/7.01 [2019-03-29 02:03:34,002 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 15 transitions. 14.74/7.01 [2019-03-29 02:03:34,002 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. 14.74/7.01 [2019-03-29 02:03:34,002 INFO L706 BuchiCegarLoop]: Abstraction has 9 states and 15 transitions. 14.74/7.01 [2019-03-29 02:03:34,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 15 transitions. 14.74/7.01 [2019-03-29 02:03:34,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. 14.74/7.01 [2019-03-29 02:03:34,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. 14.74/7.01 [2019-03-29 02:03:34,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 14 transitions. 14.74/7.01 [2019-03-29 02:03:34,004 INFO L729 BuchiCegarLoop]: Abstraction has 8 states and 14 transitions. 14.74/7.01 [2019-03-29 02:03:34,004 INFO L609 BuchiCegarLoop]: Abstraction has 8 states and 14 transitions. 14.74/7.01 [2019-03-29 02:03:34,004 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ 14.74/7.01 [2019-03-29 02:03:34,004 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 14 transitions. 14.74/7.01 [2019-03-29 02:03:34,005 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 14.74/7.01 [2019-03-29 02:03:34,005 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 14.74/7.01 [2019-03-29 02:03:34,005 INFO L119 BuchiIsEmpty]: Starting construction of run 14.74/7.01 [2019-03-29 02:03:34,006 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] 14.74/7.01 [2019-03-29 02:03:34,006 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] 14.74/7.01 [2019-03-29 02:03:34,006 INFO L794 eck$LassoCheckResult]: Stem: 69#ULTIMATE.startENTRY [27] ULTIMATE.startENTRY-->L17-2: Formula: (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[|v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~x~0] 70#L17-2 [36] L17-2-->L17: Formula: (> 0 v_ULTIMATE.start_main_~x~0_7) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 68#L17 [34] L17-->L17-2: Formula: (and (>= 0 v_ULTIMATE.start_main_~x~0_11) (= v_ULTIMATE.start_main_~x~0_10 (+ v_ULTIMATE.start_main_~x~0_11 1))) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 63#L17-2 14.74/7.01 [2019-03-29 02:03:34,006 INFO L796 eck$LassoCheckResult]: Loop: 63#L17-2 [35] L17-2-->L17: Formula: (< 0 v_ULTIMATE.start_main_~x~0_7) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 64#L17 [28] L17-->L17-2: Formula: (and (< 0 v_ULTIMATE.start_main_~x~0_9) (= v_ULTIMATE.start_main_~x~0_8 (+ v_ULTIMATE.start_main_~x~0_9 (- 1)))) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 63#L17-2 14.74/7.01 [2019-03-29 02:03:34,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 14.74/7.01 [2019-03-29 02:03:34,007 INFO L82 PathProgramCache]: Analyzing trace with hash 56888, now seen corresponding path program 1 times 14.74/7.01 [2019-03-29 02:03:34,007 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 14.74/7.01 [2019-03-29 02:03:34,007 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 14.74/7.01 [2019-03-29 02:03:34,009 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 14.74/7.01 [2019-03-29 02:03:34,009 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 14.74/7.01 [2019-03-29 02:03:34,009 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 14.74/7.01 [2019-03-29 02:03:34,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 14.74/7.01 [2019-03-29 02:03:34,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 14.74/7.01 [2019-03-29 02:03:34,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 14.74/7.01 [2019-03-29 02:03:34,015 INFO L82 PathProgramCache]: Analyzing trace with hash 2074, now seen corresponding path program 2 times 14.74/7.01 [2019-03-29 02:03:34,015 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 14.74/7.01 [2019-03-29 02:03:34,015 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 14.74/7.01 [2019-03-29 02:03:34,017 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 14.74/7.01 [2019-03-29 02:03:34,017 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 14.74/7.01 [2019-03-29 02:03:34,017 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 14.74/7.01 [2019-03-29 02:03:34,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 14.74/7.01 [2019-03-29 02:03:34,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 14.74/7.01 [2019-03-29 02:03:34,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 14.74/7.01 [2019-03-29 02:03:34,022 INFO L82 PathProgramCache]: Analyzing trace with hash 54670481, now seen corresponding path program 1 times 14.74/7.01 [2019-03-29 02:03:34,022 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 14.74/7.01 [2019-03-29 02:03:34,022 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 14.74/7.01 [2019-03-29 02:03:34,023 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 14.74/7.01 [2019-03-29 02:03:34,023 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY 14.74/7.01 [2019-03-29 02:03:34,023 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 14.74/7.01 [2019-03-29 02:03:34,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 14.74/7.01 [2019-03-29 02:03:34,047 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. 14.74/7.01 [2019-03-29 02:03:34,048 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. 14.74/7.01 [2019-03-29 02:03:34,048 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 14.74/7.01 [2019-03-29 02:03:34,059 INFO L216 LassoAnalysis]: Preferences: 14.74/7.01 [2019-03-29 02:03:34,059 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 14.74/7.01 [2019-03-29 02:03:34,059 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 14.74/7.01 [2019-03-29 02:03:34,059 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 14.74/7.01 [2019-03-29 02:03:34,060 INFO L127 ssoRankerPreferences]: Use exernal solver: true 14.74/7.01 [2019-03-29 02:03:34,060 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 14.74/7.01 [2019-03-29 02:03:34,060 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 14.74/7.01 [2019-03-29 02:03:34,060 INFO L130 ssoRankerPreferences]: Path of dumped script: 14.74/7.01 [2019-03-29 02:03:34,060 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop 14.74/7.01 [2019-03-29 02:03:34,060 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 14.74/7.01 [2019-03-29 02:03:34,060 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 14.74/7.01 [2019-03-29 02:03:34,062 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 14.74/7.01 [2019-03-29 02:03:34,066 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 14.74/7.01 [2019-03-29 02:03:34,070 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 14.74/7.01 [2019-03-29 02:03:34,110 INFO L300 LassoAnalysis]: Preprocessing complete. 14.74/7.01 [2019-03-29 02:03:34,110 INFO L412 LassoAnalysis]: Checking for nontermination... 14.74/7.01 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 14.74/7.01 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 14.74/7.01 Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 14.74/7.01 [2019-03-29 02:03:34,114 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 14.74/7.01 [2019-03-29 02:03:34,114 INFO L163 nArgumentSynthesizer]: Using integer mode. 14.74/7.01 [2019-03-29 02:03:34,141 INFO L445 LassoAnalysis]: Proved nontermination for one component. 14.74/7.01 [2019-03-29 02:03:34,141 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 14.74/7.01 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 14.74/7.01 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 14.74/7.01 Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 14.74/7.01 [2019-03-29 02:03:34,147 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 14.74/7.01 [2019-03-29 02:03:34,147 INFO L163 nArgumentSynthesizer]: Using integer mode. 14.74/7.01 [2019-03-29 02:03:34,174 INFO L445 LassoAnalysis]: Proved nontermination for one component. 14.74/7.01 [2019-03-29 02:03:34,174 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] 14.74/7.01 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 14.74/7.01 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 14.74/7.01 Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 14.74/7.01 [2019-03-29 02:03:34,179 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 14.74/7.01 [2019-03-29 02:03:34,180 INFO L163 nArgumentSynthesizer]: Using integer mode. 14.74/7.01 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 14.74/7.01 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 14.74/7.01 Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 14.74/7.01 [2019-03-29 02:03:34,210 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true 14.74/7.01 [2019-03-29 02:03:34,211 INFO L163 nArgumentSynthesizer]: Using integer mode. 14.74/7.01 [2019-03-29 02:03:34,241 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. 14.74/7.01 [2019-03-29 02:03:34,243 INFO L216 LassoAnalysis]: Preferences: 14.74/7.01 [2019-03-29 02:03:34,243 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 14.74/7.01 [2019-03-29 02:03:34,243 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 14.74/7.01 [2019-03-29 02:03:34,243 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 14.74/7.01 [2019-03-29 02:03:34,244 INFO L127 ssoRankerPreferences]: Use exernal solver: false 14.74/7.01 [2019-03-29 02:03:34,244 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 14.74/7.01 [2019-03-29 02:03:34,244 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 14.74/7.01 [2019-03-29 02:03:34,244 INFO L130 ssoRankerPreferences]: Path of dumped script: 14.74/7.01 [2019-03-29 02:03:34,244 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop 14.74/7.01 [2019-03-29 02:03:34,245 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 14.74/7.01 [2019-03-29 02:03:34,245 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 14.74/7.01 [2019-03-29 02:03:34,246 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 14.74/7.01 [2019-03-29 02:03:34,251 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 14.74/7.01 [2019-03-29 02:03:34,254 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 14.74/7.01 [2019-03-29 02:03:34,299 INFO L300 LassoAnalysis]: Preprocessing complete. 14.74/7.01 [2019-03-29 02:03:34,300 INFO L497 LassoAnalysis]: Using template 'affine'. 14.74/7.01 [2019-03-29 02:03:34,300 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 14.74/7.01 Termination analysis: LINEAR_WITH_GUESSES 14.74/7.01 Number of strict supporting invariants: 0 14.74/7.01 Number of non-strict supporting invariants: 1 14.74/7.01 Consider only non-deceasing supporting invariants: true 14.74/7.01 Simplify termination arguments: true 14.74/7.01 Simplify supporting invariants: trueOverapproximate stem: false 14.74/7.01 [2019-03-29 02:03:34,301 INFO L339 nArgumentSynthesizer]: Template has degree 0. 14.74/7.01 [2019-03-29 02:03:34,301 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 14.74/7.01 [2019-03-29 02:03:34,301 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 14.74/7.01 [2019-03-29 02:03:34,302 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 14.74/7.01 [2019-03-29 02:03:34,304 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. 14.74/7.01 [2019-03-29 02:03:34,304 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. 14.74/7.01 [2019-03-29 02:03:34,309 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. 14.74/7.01 [2019-03-29 02:03:34,309 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 14.74/7.01 Termination analysis: LINEAR_WITH_GUESSES 14.74/7.01 Number of strict supporting invariants: 0 14.74/7.01 Number of non-strict supporting invariants: 1 14.74/7.01 Consider only non-deceasing supporting invariants: true 14.74/7.01 Simplify termination arguments: true 14.74/7.01 Simplify supporting invariants: trueOverapproximate stem: false 14.74/7.01 [2019-03-29 02:03:34,310 INFO L339 nArgumentSynthesizer]: Template has degree 0. 14.74/7.01 [2019-03-29 02:03:34,310 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 14.74/7.01 [2019-03-29 02:03:34,310 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 14.74/7.01 [2019-03-29 02:03:34,310 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 14.74/7.01 [2019-03-29 02:03:34,312 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. 14.74/7.01 [2019-03-29 02:03:34,313 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. 14.74/7.01 [2019-03-29 02:03:34,318 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. 14.74/7.01 [2019-03-29 02:03:34,319 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 14.74/7.01 Termination analysis: LINEAR_WITH_GUESSES 14.74/7.01 Number of strict supporting invariants: 0 14.74/7.01 Number of non-strict supporting invariants: 1 14.74/7.01 Consider only non-deceasing supporting invariants: true 14.74/7.01 Simplify termination arguments: true 14.74/7.01 Simplify supporting invariants: trueOverapproximate stem: false 14.74/7.01 [2019-03-29 02:03:34,319 INFO L339 nArgumentSynthesizer]: Template has degree 0. 14.74/7.01 [2019-03-29 02:03:34,320 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 14.74/7.01 [2019-03-29 02:03:34,320 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 14.74/7.01 [2019-03-29 02:03:34,320 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 14.74/7.01 [2019-03-29 02:03:34,320 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 14.74/7.01 [2019-03-29 02:03:34,321 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 14.74/7.01 [2019-03-29 02:03:34,321 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 14.74/7.01 [2019-03-29 02:03:34,325 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. 14.74/7.01 [2019-03-29 02:03:34,328 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. 14.74/7.01 [2019-03-29 02:03:34,328 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. 14.74/7.01 [2019-03-29 02:03:34,329 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... 14.74/7.01 [2019-03-29 02:03:34,329 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. 14.74/7.01 [2019-03-29 02:03:34,329 INFO L518 LassoAnalysis]: Proved termination. 14.74/7.01 [2019-03-29 02:03:34,329 INFO L520 LassoAnalysis]: Termination argument consisting of: 14.74/7.01 Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 14.74/7.01 Supporting invariants [] 14.74/7.01 [2019-03-29 02:03:34,330 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed 14.74/7.01 [2019-03-29 02:03:34,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 14.74/7.01 [2019-03-29 02:03:34,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 14.74/7.01 [2019-03-29 02:03:34,358 INFO L256 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core 14.74/7.01 [2019-03-29 02:03:34,358 INFO L279 TraceCheckSpWp]: Computing forward predicates... 14.74/7.01 [2019-03-29 02:03:34,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 14.74/7.01 [2019-03-29 02:03:34,364 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core 14.74/7.01 [2019-03-29 02:03:34,364 INFO L279 TraceCheckSpWp]: Computing forward predicates... 14.74/7.01 [2019-03-29 02:03:34,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. 14.74/7.01 [2019-03-29 02:03:34,396 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization 14.74/7.01 [2019-03-29 02:03:34,396 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 2 loop predicates 14.74/7.01 [2019-03-29 02:03:34,396 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 8 states and 14 transitions. cyclomatic complexity: 8 Second operand 3 states. 14.74/7.01 [2019-03-29 02:03:34,420 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 8 states and 14 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 11 states and 20 transitions. Complement of second has 6 states. 14.74/7.01 [2019-03-29 02:03:34,420 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states 14.74/7.01 [2019-03-29 02:03:34,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. 14.74/7.01 [2019-03-29 02:03:34,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. 14.74/7.01 [2019-03-29 02:03:34,421 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 3 letters. Loop has 2 letters. 14.74/7.01 [2019-03-29 02:03:34,422 INFO L116 BuchiAccepts]: Finished buchiAccepts. 14.74/7.01 [2019-03-29 02:03:34,422 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 5 letters. Loop has 2 letters. 14.74/7.01 [2019-03-29 02:03:34,422 INFO L116 BuchiAccepts]: Finished buchiAccepts. 14.74/7.01 [2019-03-29 02:03:34,422 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 3 letters. Loop has 4 letters. 14.74/7.01 [2019-03-29 02:03:34,422 INFO L116 BuchiAccepts]: Finished buchiAccepts. 14.74/7.01 [2019-03-29 02:03:34,424 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 20 transitions. 14.74/7.01 [2019-03-29 02:03:34,425 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 14.74/7.01 [2019-03-29 02:03:34,425 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 10 states and 18 transitions. 14.74/7.01 [2019-03-29 02:03:34,425 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 14.74/7.01 [2019-03-29 02:03:34,426 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 14.74/7.01 [2019-03-29 02:03:34,426 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 18 transitions. 14.74/7.01 [2019-03-29 02:03:34,426 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. 14.74/7.01 [2019-03-29 02:03:34,426 INFO L706 BuchiCegarLoop]: Abstraction has 10 states and 18 transitions. 14.74/7.01 [2019-03-29 02:03:34,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 18 transitions. 14.74/7.01 [2019-03-29 02:03:34,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 5. 14.74/7.01 [2019-03-29 02:03:34,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. 14.74/7.01 [2019-03-29 02:03:34,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 9 transitions. 14.74/7.01 [2019-03-29 02:03:34,427 INFO L729 BuchiCegarLoop]: Abstraction has 5 states and 9 transitions. 14.74/7.01 [2019-03-29 02:03:34,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. 14.74/7.01 [2019-03-29 02:03:34,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 14.74/7.01 [2019-03-29 02:03:34,428 INFO L87 Difference]: Start difference. First operand 5 states and 9 transitions. Second operand 4 states. 14.74/7.01 [2019-03-29 02:03:34,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. 14.74/7.01 [2019-03-29 02:03:34,451 INFO L93 Difference]: Finished difference Result 7 states and 11 transitions. 14.74/7.01 [2019-03-29 02:03:34,451 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 14.74/7.01 [2019-03-29 02:03:34,453 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7 states and 11 transitions. 14.74/7.01 [2019-03-29 02:03:34,453 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 14.74/7.01 [2019-03-29 02:03:34,454 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7 states to 6 states and 8 transitions. 14.74/7.01 [2019-03-29 02:03:34,454 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 14.74/7.01 [2019-03-29 02:03:34,454 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 14.74/7.01 [2019-03-29 02:03:34,454 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 8 transitions. 14.74/7.01 [2019-03-29 02:03:34,455 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. 14.74/7.01 [2019-03-29 02:03:34,455 INFO L706 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. 14.74/7.01 [2019-03-29 02:03:34,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 8 transitions. 14.74/7.01 [2019-03-29 02:03:34,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. 14.74/7.01 [2019-03-29 02:03:34,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. 14.74/7.01 [2019-03-29 02:03:34,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 8 transitions. 14.74/7.01 [2019-03-29 02:03:34,456 INFO L729 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. 14.74/7.01 [2019-03-29 02:03:34,456 INFO L609 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. 14.74/7.01 [2019-03-29 02:03:34,456 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ 14.74/7.01 [2019-03-29 02:03:34,457 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 8 transitions. 14.74/7.01 [2019-03-29 02:03:34,457 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 14.74/7.01 [2019-03-29 02:03:34,457 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 14.74/7.01 [2019-03-29 02:03:34,457 INFO L119 BuchiIsEmpty]: Starting construction of run 14.74/7.01 [2019-03-29 02:03:34,458 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] 14.74/7.01 [2019-03-29 02:03:34,458 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] 14.74/7.01 [2019-03-29 02:03:34,458 INFO L794 eck$LassoCheckResult]: Stem: 139#ULTIMATE.startENTRY [27] ULTIMATE.startENTRY-->L17-2: Formula: (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[|v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~x~0] 140#L17-2 [36] L17-2-->L17: Formula: (> 0 v_ULTIMATE.start_main_~x~0_7) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 136#L17 14.74/7.01 [2019-03-29 02:03:34,458 INFO L796 eck$LassoCheckResult]: Loop: 136#L17 [34] L17-->L17-2: Formula: (and (>= 0 v_ULTIMATE.start_main_~x~0_11) (= v_ULTIMATE.start_main_~x~0_10 (+ v_ULTIMATE.start_main_~x~0_11 1))) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 135#L17-2 [36] L17-2-->L17: Formula: (> 0 v_ULTIMATE.start_main_~x~0_7) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 136#L17 14.74/7.01 [2019-03-29 02:03:34,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 14.74/7.01 [2019-03-29 02:03:34,459 INFO L82 PathProgramCache]: Analyzing trace with hash 1834, now seen corresponding path program 1 times 14.74/7.01 [2019-03-29 02:03:34,459 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 14.74/7.01 [2019-03-29 02:03:34,459 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 14.74/7.01 [2019-03-29 02:03:34,460 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 14.74/7.01 [2019-03-29 02:03:34,460 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 14.74/7.01 [2019-03-29 02:03:34,461 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 14.74/7.01 [2019-03-29 02:03:34,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 14.74/7.01 [2019-03-29 02:03:34,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 14.74/7.01 [2019-03-29 02:03:34,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 14.74/7.01 [2019-03-29 02:03:34,465 INFO L82 PathProgramCache]: Analyzing trace with hash 2051, now seen corresponding path program 1 times 14.74/7.01 [2019-03-29 02:03:34,465 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 14.74/7.01 [2019-03-29 02:03:34,466 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 14.74/7.01 [2019-03-29 02:03:34,467 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 14.74/7.01 [2019-03-29 02:03:34,467 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 14.74/7.01 [2019-03-29 02:03:34,467 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 14.74/7.01 [2019-03-29 02:03:34,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 14.74/7.01 [2019-03-29 02:03:34,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 14.74/7.01 [2019-03-29 02:03:34,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 14.74/7.01 [2019-03-29 02:03:34,471 INFO L82 PathProgramCache]: Analyzing trace with hash 1763564, now seen corresponding path program 2 times 14.74/7.01 [2019-03-29 02:03:34,471 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 14.74/7.01 [2019-03-29 02:03:34,471 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 14.74/7.01 [2019-03-29 02:03:34,472 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 14.74/7.01 [2019-03-29 02:03:34,472 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 14.74/7.01 [2019-03-29 02:03:34,473 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 14.74/7.01 [2019-03-29 02:03:34,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 14.74/7.01 [2019-03-29 02:03:34,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 14.74/7.01 [2019-03-29 02:03:34,502 INFO L216 LassoAnalysis]: Preferences: 14.74/7.01 [2019-03-29 02:03:34,502 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 14.74/7.01 [2019-03-29 02:03:34,502 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 14.74/7.01 [2019-03-29 02:03:34,503 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 14.74/7.01 [2019-03-29 02:03:34,503 INFO L127 ssoRankerPreferences]: Use exernal solver: true 14.74/7.01 [2019-03-29 02:03:34,503 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 14.74/7.01 [2019-03-29 02:03:34,503 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 14.74/7.01 [2019-03-29 02:03:34,503 INFO L130 ssoRankerPreferences]: Path of dumped script: 14.74/7.01 [2019-03-29 02:03:34,503 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop 14.74/7.01 [2019-03-29 02:03:34,503 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 14.74/7.01 [2019-03-29 02:03:34,503 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 14.74/7.01 [2019-03-29 02:03:34,505 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 14.74/7.01 [2019-03-29 02:03:34,520 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 14.74/7.01 [2019-03-29 02:03:34,525 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 14.74/7.01 [2019-03-29 02:03:34,564 INFO L300 LassoAnalysis]: Preprocessing complete. 14.74/7.01 [2019-03-29 02:03:34,564 INFO L412 LassoAnalysis]: Checking for nontermination... 14.74/7.01 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 14.74/7.01 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 14.74/7.01 Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 14.74/7.01 [2019-03-29 02:03:34,568 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 14.74/7.01 [2019-03-29 02:03:34,569 INFO L163 nArgumentSynthesizer]: Using integer mode. 14.74/7.01 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 14.74/7.01 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 14.74/7.01 Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 14.74/7.01 [2019-03-29 02:03:34,600 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true 14.74/7.01 [2019-03-29 02:03:34,600 INFO L163 nArgumentSynthesizer]: Using integer mode. 14.74/7.01 [2019-03-29 02:03:34,703 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. 14.74/7.01 [2019-03-29 02:03:34,705 INFO L216 LassoAnalysis]: Preferences: 14.74/7.01 [2019-03-29 02:03:34,706 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 14.74/7.01 [2019-03-29 02:03:34,706 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 14.74/7.01 [2019-03-29 02:03:34,706 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 14.74/7.01 [2019-03-29 02:03:34,706 INFO L127 ssoRankerPreferences]: Use exernal solver: false 14.74/7.01 [2019-03-29 02:03:34,706 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 14.74/7.01 [2019-03-29 02:03:34,706 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 14.74/7.01 [2019-03-29 02:03:34,707 INFO L130 ssoRankerPreferences]: Path of dumped script: 14.74/7.01 [2019-03-29 02:03:34,707 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop 14.74/7.01 [2019-03-29 02:03:34,707 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 14.74/7.01 [2019-03-29 02:03:34,707 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 14.74/7.01 [2019-03-29 02:03:34,709 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 14.74/7.01 [2019-03-29 02:03:34,720 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 14.74/7.01 [2019-03-29 02:03:34,724 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 14.74/7.01 [2019-03-29 02:03:34,765 INFO L300 LassoAnalysis]: Preprocessing complete. 14.74/7.01 [2019-03-29 02:03:34,766 INFO L497 LassoAnalysis]: Using template 'affine'. 14.74/7.01 [2019-03-29 02:03:34,766 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 14.74/7.01 Termination analysis: LINEAR_WITH_GUESSES 14.74/7.01 Number of strict supporting invariants: 0 14.74/7.01 Number of non-strict supporting invariants: 1 14.74/7.01 Consider only non-deceasing supporting invariants: true 14.74/7.01 Simplify termination arguments: true 14.74/7.01 Simplify supporting invariants: trueOverapproximate stem: false 14.74/7.01 [2019-03-29 02:03:34,767 INFO L339 nArgumentSynthesizer]: Template has degree 0. 14.74/7.01 [2019-03-29 02:03:34,767 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 14.74/7.01 [2019-03-29 02:03:34,767 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 14.74/7.01 [2019-03-29 02:03:34,767 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 14.74/7.01 [2019-03-29 02:03:34,768 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 14.74/7.01 [2019-03-29 02:03:34,768 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 14.74/7.01 [2019-03-29 02:03:34,768 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 14.74/7.01 [2019-03-29 02:03:34,773 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. 14.74/7.01 [2019-03-29 02:03:34,776 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. 14.74/7.01 [2019-03-29 02:03:34,776 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. 14.74/7.01 [2019-03-29 02:03:34,776 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... 14.74/7.01 [2019-03-29 02:03:34,776 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. 14.74/7.01 [2019-03-29 02:03:34,777 INFO L518 LassoAnalysis]: Proved termination. 14.74/7.01 [2019-03-29 02:03:34,777 INFO L520 LassoAnalysis]: Termination argument consisting of: 14.74/7.01 Ranking function f(ULTIMATE.start_main_~x~0) = -1*ULTIMATE.start_main_~x~0 14.74/7.01 Supporting invariants [] 14.74/7.01 [2019-03-29 02:03:34,777 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed 14.74/7.01 [2019-03-29 02:03:34,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 14.74/7.01 [2019-03-29 02:03:34,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 14.74/7.01 [2019-03-29 02:03:34,803 INFO L256 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core 14.74/7.01 [2019-03-29 02:03:34,804 INFO L279 TraceCheckSpWp]: Computing forward predicates... 14.74/7.01 [2019-03-29 02:03:34,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 14.74/7.01 [2019-03-29 02:03:34,811 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core 14.74/7.01 [2019-03-29 02:03:34,811 INFO L279 TraceCheckSpWp]: Computing forward predicates... 14.74/7.01 [2019-03-29 02:03:34,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. 14.74/7.01 [2019-03-29 02:03:34,830 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization 14.74/7.01 [2019-03-29 02:03:34,830 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 2 loop predicates 14.74/7.01 [2019-03-29 02:03:34,830 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 6 states and 8 transitions. cyclomatic complexity: 4 Second operand 3 states. 14.74/7.01 [2019-03-29 02:03:34,841 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 6 states and 8 transitions. cyclomatic complexity: 4. Second operand 3 states. Result 8 states and 10 transitions. Complement of second has 4 states. 14.74/7.01 [2019-03-29 02:03:34,841 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states 14.74/7.01 [2019-03-29 02:03:34,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. 14.74/7.01 [2019-03-29 02:03:34,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. 14.74/7.01 [2019-03-29 02:03:34,842 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 2 letters. Loop has 2 letters. 14.74/7.01 [2019-03-29 02:03:34,843 INFO L116 BuchiAccepts]: Finished buchiAccepts. 14.74/7.01 [2019-03-29 02:03:34,843 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 4 letters. Loop has 2 letters. 14.74/7.01 [2019-03-29 02:03:34,843 INFO L116 BuchiAccepts]: Finished buchiAccepts. 14.74/7.01 [2019-03-29 02:03:34,843 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 2 letters. Loop has 4 letters. 14.74/7.01 [2019-03-29 02:03:34,844 INFO L116 BuchiAccepts]: Finished buchiAccepts. 14.74/7.01 [2019-03-29 02:03:34,845 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 10 transitions. 14.74/7.01 [2019-03-29 02:03:34,845 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 14.74/7.01 [2019-03-29 02:03:34,846 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 0 states and 0 transitions. 14.74/7.01 [2019-03-29 02:03:34,846 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 14.74/7.01 [2019-03-29 02:03:34,846 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 14.74/7.01 [2019-03-29 02:03:34,846 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. 14.74/7.01 [2019-03-29 02:03:34,846 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. 14.74/7.01 [2019-03-29 02:03:34,846 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. 14.74/7.01 [2019-03-29 02:03:34,846 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. 14.74/7.01 [2019-03-29 02:03:34,846 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. 14.74/7.01 [2019-03-29 02:03:34,847 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ 14.74/7.01 [2019-03-29 02:03:34,847 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. 14.74/7.01 [2019-03-29 02:03:34,847 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 14.74/7.01 [2019-03-29 02:03:34,847 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true 14.74/7.01 [2019-03-29 02:03:34,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.03 02:03:34 BasicIcfg 14.74/7.01 [2019-03-29 02:03:34,854 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- 14.74/7.01 [2019-03-29 02:03:34,855 INFO L168 Benchmark]: Toolchain (without parser) took 2504.71 ms. Allocated memory was 649.6 MB in the beginning and 683.1 MB in the end (delta: 33.6 MB). Free memory was 566.1 MB in the beginning and 437.7 MB in the end (delta: 128.4 MB). Peak memory consumption was 161.9 MB. Max. memory is 50.3 GB. 14.74/7.01 [2019-03-29 02:03:34,857 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 649.6 MB. Free memory is still 586.5 MB. There was no memory consumed. Max. memory is 50.3 GB. 14.74/7.01 [2019-03-29 02:03:34,857 INFO L168 Benchmark]: CACSL2BoogieTranslator took 225.23 ms. Allocated memory is still 649.6 MB. Free memory was 564.8 MB in the beginning and 555.1 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 50.3 GB. 14.74/7.01 [2019-03-29 02:03:34,857 INFO L168 Benchmark]: Boogie Procedure Inliner took 95.57 ms. Allocated memory was 649.6 MB in the beginning and 683.1 MB in the end (delta: 33.6 MB). Free memory was 555.1 MB in the beginning and 650.8 MB in the end (delta: -95.7 MB). Peak memory consumption was 20.2 MB. Max. memory is 50.3 GB. 14.74/7.01 [2019-03-29 02:03:34,858 INFO L168 Benchmark]: Boogie Preprocessor took 20.45 ms. Allocated memory is still 683.1 MB. Free memory was 650.8 MB in the beginning and 647.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 50.3 GB. 14.74/7.01 [2019-03-29 02:03:34,859 INFO L168 Benchmark]: RCFGBuilder took 197.59 ms. Allocated memory is still 683.1 MB. Free memory was 647.7 MB in the beginning and 633.7 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 50.3 GB. 14.74/7.01 [2019-03-29 02:03:34,860 INFO L168 Benchmark]: BlockEncodingV2 took 83.85 ms. Allocated memory is still 683.1 MB. Free memory was 633.7 MB in the beginning and 628.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. 14.74/7.01 [2019-03-29 02:03:34,860 INFO L168 Benchmark]: TraceAbstraction took 154.86 ms. Allocated memory is still 683.1 MB. Free memory was 628.3 MB in the beginning and 620.2 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 50.3 GB. 14.74/7.01 [2019-03-29 02:03:34,861 INFO L168 Benchmark]: BuchiAutomizer took 1721.95 ms. Allocated memory is still 683.1 MB. Free memory was 618.9 MB in the beginning and 437.7 MB in the end (delta: 181.1 MB). Peak memory consumption was 181.1 MB. Max. memory is 50.3 GB. 14.74/7.01 [2019-03-29 02:03:34,865 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### 14.74/7.01 --- Results --- 14.74/7.01 * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: 14.74/7.01 - StatisticsResult: Initial Icfg 14.74/7.01 7 locations, 9 edges 14.74/7.01 - StatisticsResult: Encoded RCFG 14.74/7.01 3 locations, 5 edges 14.74/7.01 * Results from de.uni_freiburg.informatik.ultimate.core: 14.74/7.01 - StatisticsResult: Toolchain Benchmarks 14.74/7.01 Benchmark results are: 14.74/7.01 * CDTParser took 0.16 ms. Allocated memory is still 649.6 MB. Free memory is still 586.5 MB. There was no memory consumed. Max. memory is 50.3 GB. 14.74/7.01 * CACSL2BoogieTranslator took 225.23 ms. Allocated memory is still 649.6 MB. Free memory was 564.8 MB in the beginning and 555.1 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 50.3 GB. 14.74/7.01 * Boogie Procedure Inliner took 95.57 ms. Allocated memory was 649.6 MB in the beginning and 683.1 MB in the end (delta: 33.6 MB). Free memory was 555.1 MB in the beginning and 650.8 MB in the end (delta: -95.7 MB). Peak memory consumption was 20.2 MB. Max. memory is 50.3 GB. 14.74/7.01 * Boogie Preprocessor took 20.45 ms. Allocated memory is still 683.1 MB. Free memory was 650.8 MB in the beginning and 647.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 50.3 GB. 14.74/7.01 * RCFGBuilder took 197.59 ms. Allocated memory is still 683.1 MB. Free memory was 647.7 MB in the beginning and 633.7 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 50.3 GB. 14.74/7.01 * BlockEncodingV2 took 83.85 ms. Allocated memory is still 683.1 MB. Free memory was 633.7 MB in the beginning and 628.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. 14.74/7.01 * TraceAbstraction took 154.86 ms. Allocated memory is still 683.1 MB. Free memory was 628.3 MB in the beginning and 620.2 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 50.3 GB. 14.74/7.01 * BuchiAutomizer took 1721.95 ms. Allocated memory is still 683.1 MB. Free memory was 618.9 MB in the beginning and 437.7 MB in the end (delta: 181.1 MB). Peak memory consumption was 181.1 MB. Max. memory is 50.3 GB. 14.74/7.01 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: 14.74/7.01 - AllSpecificationsHoldResult: All specifications hold 14.74/7.01 We were not able to verify any specifiation because the program does not contain any specification. 14.74/7.01 - InvariantResult [Line: 16]: Loop Invariant 14.74/7.01 Derived loop invariant: 1 14.74/7.01 - StatisticsResult: Ultimate Automizer benchmark data 14.74/7.01 CFG has 1 procedures, 3 locations, 0 error locations. SAFE Result, 0.0s OverallTime, 0 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 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 14.74/7.01 - StatisticsResult: Constructed decomposition of program 14.74/7.01 Your program was decomposed into 5 terminating modules (2 trivial, 0 deterministic, 3 nondeterministic). One nondeterministic module has affine ranking function x and consists of 4 locations. One nondeterministic module has affine ranking function x and consists of 4 locations. One nondeterministic module has affine ranking function -1 * x and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 4 locations. 14.74/7.01 - StatisticsResult: Timing statistics 14.74/7.01 BüchiAutomizer plugin needed 1.6s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 1.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 8 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 9 SDtfs, 20 SDslu, 0 SDs, 0 SdLazy, 56 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT2 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital10 mio100 ax220 hnf100 lsp45 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 16ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s 14.74/7.01 - TerminationAnalysisResult: Termination proven 14.74/7.01 Buchi Automizer proved that your program is terminating 14.74/7.01 RESULT: Ultimate proved your program to be correct! 14.74/7.01 !SESSION 2019-03-29 02:03:29.080 ----------------------------------------------- 14.74/7.01 eclipse.buildId=unknown 14.74/7.01 java.version=1.8.0_181 14.74/7.01 java.vendor=Oracle Corporation 14.74/7.01 BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US 14.74/7.01 Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox2/benchmark/theBenchmark.c 14.74/7.01 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 14.74/7.01 14.74/7.01 !ENTRY org.eclipse.core.resources 2 10035 2019-03-29 02:03:35.098 14.74/7.01 !MESSAGE The workspace will exit with unsaved changes in this session. 14.74/7.01 Received shutdown request... 14.74/7.01 Ultimate: 14.74/7.01 GTK+ Version Check 14.74/7.01 EOF