11.24/5.60 NO 11.24/5.60 11.24/5.60 Ultimate: Cannot open display: 11.24/5.60 This is Ultimate 0.1.24-8dc7c08-m 11.24/5.60 [2019-03-29 01:46:18,632 INFO L170 SettingsManager]: Resetting all preferences to default values... 11.24/5.60 [2019-03-29 01:46:18,634 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values 11.24/5.60 [2019-03-29 01:46:18,645 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 11.24/5.60 [2019-03-29 01:46:18,646 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values 11.24/5.60 [2019-03-29 01:46:18,647 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values 11.24/5.60 [2019-03-29 01:46:18,648 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values 11.24/5.60 [2019-03-29 01:46:18,649 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values 11.24/5.60 [2019-03-29 01:46:18,651 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values 11.24/5.60 [2019-03-29 01:46:18,652 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values 11.24/5.60 [2019-03-29 01:46:18,653 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 11.24/5.60 [2019-03-29 01:46:18,653 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values 11.24/5.60 [2019-03-29 01:46:18,654 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values 11.24/5.60 [2019-03-29 01:46:18,655 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values 11.24/5.60 [2019-03-29 01:46:18,656 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values 11.24/5.60 [2019-03-29 01:46:18,656 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values 11.24/5.60 [2019-03-29 01:46:18,657 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values 11.24/5.60 [2019-03-29 01:46:18,659 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values 11.24/5.60 [2019-03-29 01:46:18,661 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values 11.24/5.60 [2019-03-29 01:46:18,662 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values 11.24/5.60 [2019-03-29 01:46:18,663 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values 11.24/5.60 [2019-03-29 01:46:18,664 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values 11.24/5.60 [2019-03-29 01:46:18,667 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 11.24/5.60 [2019-03-29 01:46:18,667 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... 11.24/5.60 [2019-03-29 01:46:18,667 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values 11.24/5.60 [2019-03-29 01:46:18,668 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values 11.24/5.60 [2019-03-29 01:46:18,668 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values 11.24/5.60 [2019-03-29 01:46:18,669 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... 11.24/5.60 [2019-03-29 01:46:18,670 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values 11.24/5.60 [2019-03-29 01:46:18,670 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values 11.24/5.60 [2019-03-29 01:46:18,671 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values 11.24/5.60 [2019-03-29 01:46:18,672 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values 11.24/5.60 [2019-03-29 01:46:18,673 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... 11.24/5.60 [2019-03-29 01:46:18,673 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values 11.24/5.60 [2019-03-29 01:46:18,674 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 11.24/5.60 [2019-03-29 01:46:18,674 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... 11.24/5.60 [2019-03-29 01:46:18,674 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values 11.24/5.60 [2019-03-29 01:46:18,675 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values 11.24/5.60 [2019-03-29 01:46:18,676 INFO L181 SettingsManager]: Finished resetting all preferences to default values... 11.24/5.60 [2019-03-29 01:46:18,676 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf 11.24/5.60 [2019-03-29 01:46:18,691 INFO L110 SettingsManager]: Loading preferences was successful 11.24/5.60 [2019-03-29 01:46:18,691 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: 11.24/5.60 [2019-03-29 01:46:18,692 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: 11.24/5.60 [2019-03-29 01:46:18,692 INFO L133 SettingsManager]: * Rewrite not-equals=true 11.24/5.60 [2019-03-29 01:46:18,692 INFO L133 SettingsManager]: * Create parallel compositions if possible=false 11.24/5.61 [2019-03-29 01:46:18,692 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE 11.24/5.61 [2019-03-29 01:46:18,693 INFO L133 SettingsManager]: * Use SBE=true 11.24/5.61 [2019-03-29 01:46:18,693 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: 11.24/5.61 [2019-03-29 01:46:18,693 INFO L133 SettingsManager]: * Use old map elimination=false 11.24/5.61 [2019-03-29 01:46:18,693 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false 11.24/5.61 [2019-03-29 01:46:18,693 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION 11.24/5.61 [2019-03-29 01:46:18,693 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true 11.24/5.61 [2019-03-29 01:46:18,694 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES 11.24/5.61 [2019-03-29 01:46:18,694 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true 11.24/5.61 [2019-03-29 01:46:18,694 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 11.24/5.61 [2019-03-29 01:46:18,694 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: 11.24/5.61 [2019-03-29 01:46:18,694 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false 11.24/5.61 [2019-03-29 01:46:18,695 INFO L133 SettingsManager]: * Check division by zero=IGNORE 11.24/5.61 [2019-03-29 01:46:18,695 INFO L133 SettingsManager]: * Check if freed pointer was valid=false 11.24/5.61 [2019-03-29 01:46:18,695 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false 11.24/5.61 [2019-03-29 01:46:18,695 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE 11.24/5.61 [2019-03-29 01:46:18,695 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: 11.24/5.61 [2019-03-29 01:46:18,695 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements 11.24/5.61 [2019-03-29 01:46:18,696 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump 11.24/5.61 [2019-03-29 01:46:18,696 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 11.24/5.61 [2019-03-29 01:46:18,696 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: 11.24/5.61 [2019-03-29 01:46:18,696 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles 11.24/5.61 [2019-03-29 01:46:18,696 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL 11.24/5.61 [2019-03-29 01:46:18,696 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 11.24/5.61 [2019-03-29 01:46:18,722 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp 11.24/5.61 [2019-03-29 01:46:18,735 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized 11.24/5.61 [2019-03-29 01:46:18,739 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. 11.24/5.61 [2019-03-29 01:46:18,740 INFO L271 PluginConnector]: Initializing CDTParser... 11.24/5.61 [2019-03-29 01:46:18,741 INFO L276 PluginConnector]: CDTParser initialized 11.24/5.61 [2019-03-29 01:46:18,742 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c 11.24/5.61 [2019-03-29 01:46:18,801 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/ab7cb7d157ca417ca4041abca1fe91a6/FLAG3c5a90ad5 11.24/5.61 [2019-03-29 01:46:19,139 INFO L307 CDTParser]: Found 1 translation units. 11.24/5.61 [2019-03-29 01:46:19,140 INFO L161 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c 11.24/5.61 [2019-03-29 01:46:19,147 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/ab7cb7d157ca417ca4041abca1fe91a6/FLAG3c5a90ad5 11.24/5.61 [2019-03-29 01:46:19,562 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/ab7cb7d157ca417ca4041abca1fe91a6 11.24/5.61 [2019-03-29 01:46:19,573 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### 11.24/5.61 [2019-03-29 01:46:19,575 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. 11.24/5.61 [2019-03-29 01:46:19,576 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- 11.24/5.61 [2019-03-29 01:46:19,576 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... 11.24/5.61 [2019-03-29 01:46:19,580 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized 11.24/5.61 [2019-03-29 01:46:19,580 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.03 01:46:19" (1/1) ... 11.24/5.61 [2019-03-29 01:46:19,584 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63a6f6d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 01:46:19, skipping insertion in model container 11.24/5.61 [2019-03-29 01:46:19,584 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.03 01:46:19" (1/1) ... 11.24/5.61 [2019-03-29 01:46:19,592 INFO L145 MainTranslator]: Starting translation in SV-COMP mode 11.24/5.61 [2019-03-29 01:46:19,608 INFO L176 MainTranslator]: Built tables and reachable declarations 11.24/5.61 [2019-03-29 01:46:19,759 INFO L206 PostProcessor]: Analyzing one entry point: main 11.24/5.61 [2019-03-29 01:46:19,765 INFO L191 MainTranslator]: Completed pre-run 11.24/5.61 [2019-03-29 01:46:19,780 INFO L206 PostProcessor]: Analyzing one entry point: main 11.24/5.61 [2019-03-29 01:46:19,794 INFO L195 MainTranslator]: Completed translation 11.24/5.61 [2019-03-29 01:46:19,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 01:46:19 WrapperNode 11.24/5.61 [2019-03-29 01:46:19,795 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- 11.24/5.61 [2019-03-29 01:46:19,796 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- 11.24/5.61 [2019-03-29 01:46:19,796 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... 11.24/5.61 [2019-03-29 01:46:19,796 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized 11.24/5.61 [2019-03-29 01:46:19,867 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 01:46:19" (1/1) ... 11.24/5.61 [2019-03-29 01:46:19,873 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 01:46:19" (1/1) ... 11.24/5.61 [2019-03-29 01:46:19,893 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- 11.24/5.61 [2019-03-29 01:46:19,894 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- 11.24/5.61 [2019-03-29 01:46:19,894 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... 11.24/5.61 [2019-03-29 01:46:19,894 INFO L276 PluginConnector]: Boogie Preprocessor initialized 11.24/5.61 [2019-03-29 01:46:19,904 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 01:46:19" (1/1) ... 11.24/5.61 [2019-03-29 01:46:19,904 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 01:46:19" (1/1) ... 11.24/5.61 [2019-03-29 01:46:19,905 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 01:46:19" (1/1) ... 11.24/5.61 [2019-03-29 01:46:19,905 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 01:46:19" (1/1) ... 11.24/5.61 [2019-03-29 01:46:19,907 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 01:46:19" (1/1) ... 11.24/5.61 [2019-03-29 01:46:19,912 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 01:46:19" (1/1) ... 11.24/5.61 [2019-03-29 01:46:19,913 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 01:46:19" (1/1) ... 11.24/5.61 [2019-03-29 01:46:19,914 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- 11.24/5.61 [2019-03-29 01:46:19,914 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- 11.24/5.61 [2019-03-29 01:46:19,915 INFO L271 PluginConnector]: Initializing RCFGBuilder... 11.24/5.61 [2019-03-29 01:46:19,915 INFO L276 PluginConnector]: RCFGBuilder initialized 11.24/5.61 [2019-03-29 01:46:19,916 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 01:46:19" (1/1) ... 11.24/5.61 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 11.24/5.61 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) 11.24/5.61 Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 11.24/5.61 [2019-03-29 01:46:19,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start 11.24/5.61 [2019-03-29 01:46:19,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start 11.24/5.61 [2019-03-29 01:46:20,088 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) 11.24/5.61 [2019-03-29 01:46:20,089 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. 11.24/5.61 [2019-03-29 01:46:20,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.03 01:46:20 BoogieIcfgContainer 11.24/5.61 [2019-03-29 01:46:20,090 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- 11.24/5.61 [2019-03-29 01:46:20,091 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- 11.24/5.61 [2019-03-29 01:46:20,091 INFO L271 PluginConnector]: Initializing BlockEncodingV2... 11.24/5.61 [2019-03-29 01:46:20,094 INFO L276 PluginConnector]: BlockEncodingV2 initialized 11.24/5.61 [2019-03-29 01:46:20,094 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.03 01:46:20" (1/1) ... 11.24/5.61 [2019-03-29 01:46:20,110 INFO L313 BlockEncoder]: Initial Icfg 6 locations, 7 edges 11.24/5.61 [2019-03-29 01:46:20,112 INFO L258 BlockEncoder]: Using Remove infeasible edges 11.24/5.61 [2019-03-29 01:46:20,113 INFO L263 BlockEncoder]: Using Maximize final states 11.24/5.61 [2019-03-29 01:46:20,113 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false 11.24/5.61 [2019-03-29 01:46:20,114 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE 11.24/5.61 [2019-03-29 01:46:20,116 INFO L296 BlockEncoder]: Using Remove sink states 11.24/5.61 [2019-03-29 01:46:20,117 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true 11.24/5.61 [2019-03-29 01:46:20,117 INFO L179 BlockEncoder]: Using Rewrite not-equals 11.24/5.61 [2019-03-29 01:46:20,136 INFO L185 BlockEncoder]: Using Use SBE 11.24/5.61 [2019-03-29 01:46:20,148 INFO L200 BlockEncoder]: SBE split 1 edges 11.24/5.61 [2019-03-29 01:46:20,153 INFO L70 emoveInfeasibleEdges]: Removed 5 edges and 4 locations because of local infeasibility 11.24/5.61 [2019-03-29 01:46:20,155 INFO L71 MaximizeFinalStates]: 0 new accepting states 11.24/5.61 [2019-03-29 01:46:20,157 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding 11.24/5.61 [2019-03-29 01:46:20,159 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states 11.24/5.61 [2019-03-29 01:46:20,161 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility 11.24/5.61 [2019-03-29 01:46:20,161 INFO L71 MaximizeFinalStates]: 0 new accepting states 11.24/5.61 [2019-03-29 01:46:20,161 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding 11.24/5.61 [2019-03-29 01:46:20,161 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states 11.24/5.61 [2019-03-29 01:46:20,162 INFO L313 BlockEncoder]: Encoded RCFG 2 locations, 3 edges 11.24/5.61 [2019-03-29 01:46:20,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 29.03 01:46:20 BasicIcfg 11.24/5.61 [2019-03-29 01:46:20,162 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- 11.24/5.61 [2019-03-29 01:46:20,163 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- 11.24/5.61 [2019-03-29 01:46:20,163 INFO L271 PluginConnector]: Initializing TraceAbstraction... 11.24/5.61 [2019-03-29 01:46:20,167 INFO L276 PluginConnector]: TraceAbstraction initialized 11.24/5.61 [2019-03-29 01:46:20,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.03 01:46:19" (1/4) ... 11.24/5.61 [2019-03-29 01:46:20,168 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@151e20c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.03 01:46:20, skipping insertion in model container 11.24/5.61 [2019-03-29 01:46:20,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 01:46:19" (2/4) ... 11.24/5.61 [2019-03-29 01:46:20,169 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@151e20c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.03 01:46:20, skipping insertion in model container 11.24/5.61 [2019-03-29 01:46:20,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.03 01:46:20" (3/4) ... 11.24/5.61 [2019-03-29 01:46:20,170 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@151e20c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.03 01:46:20, skipping insertion in model container 11.24/5.61 [2019-03-29 01:46:20,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 29.03 01:46:20" (4/4) ... 11.24/5.61 [2019-03-29 01:46:20,172 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 11.24/5.61 [2019-03-29 01:46:20,182 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION 11.24/5.61 [2019-03-29 01:46:20,191 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. 11.24/5.61 [2019-03-29 01:46:20,209 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. 11.24/5.61 [2019-03-29 01:46:20,240 INFO L133 ementStrategyFactory]: Using default assertion order modulation 11.24/5.61 [2019-03-29 01:46:20,241 INFO L382 AbstractCegarLoop]: Interprodecural is true 11.24/5.61 [2019-03-29 01:46:20,241 INFO L383 AbstractCegarLoop]: Hoare is true 11.24/5.61 [2019-03-29 01:46:20,241 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates 11.24/5.61 [2019-03-29 01:46:20,241 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE 11.24/5.61 [2019-03-29 01:46:20,241 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION 11.24/5.61 [2019-03-29 01:46:20,242 INFO L387 AbstractCegarLoop]: Difference is false 11.24/5.61 [2019-03-29 01:46:20,242 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA 11.24/5.61 [2019-03-29 01:46:20,242 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== 11.24/5.61 [2019-03-29 01:46:20,256 INFO L276 IsEmpty]: Start isEmpty. Operand 2 states. 11.24/5.61 [2019-03-29 01:46:20,262 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. 11.24/5.61 [2019-03-29 01:46:20,265 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 2 states. 11.24/5.61 [2019-03-29 01:46:20,318 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. 11.24/5.61 [2019-03-29 01:46:20,318 INFO L451 ceAbstractionStarter]: At program point L13-2(lines 13 15) the Hoare annotation is: true 11.24/5.61 [2019-03-29 01:46:20,326 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.03 01:46:20 BasicIcfg 11.24/5.61 [2019-03-29 01:46:20,326 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- 11.24/5.61 [2019-03-29 01:46:20,327 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- 11.24/5.61 [2019-03-29 01:46:20,327 INFO L271 PluginConnector]: Initializing BuchiAutomizer... 11.24/5.61 [2019-03-29 01:46:20,330 INFO L276 PluginConnector]: BuchiAutomizer initialized 11.24/5.61 [2019-03-29 01:46:20,331 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 11.24/5.61 [2019-03-29 01:46:20,331 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.03 01:46:19" (1/5) ... 11.24/5.61 [2019-03-29 01:46:20,332 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@768d2ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.03 01:46:20, skipping insertion in model container 11.24/5.61 [2019-03-29 01:46:20,332 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 11.24/5.61 [2019-03-29 01:46:20,333 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 01:46:19" (2/5) ... 11.24/5.61 [2019-03-29 01:46:20,333 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@768d2ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.03 01:46:20, skipping insertion in model container 11.24/5.61 [2019-03-29 01:46:20,333 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 11.24/5.61 [2019-03-29 01:46:20,333 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.03 01:46:20" (3/5) ... 11.24/5.61 [2019-03-29 01:46:20,334 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@768d2ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.03 01:46:20, skipping insertion in model container 11.24/5.61 [2019-03-29 01:46:20,334 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 11.24/5.61 [2019-03-29 01:46:20,334 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 29.03 01:46:20" (4/5) ... 11.24/5.61 [2019-03-29 01:46:20,334 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@768d2ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.03 01:46:20, skipping insertion in model container 11.24/5.61 [2019-03-29 01:46:20,334 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 11.24/5.61 [2019-03-29 01:46:20,335 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.03 01:46:20" (5/5) ... 11.24/5.61 [2019-03-29 01:46:20,336 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 11.24/5.61 [2019-03-29 01:46:20,363 INFO L133 ementStrategyFactory]: Using default assertion order modulation 11.24/5.61 [2019-03-29 01:46:20,364 INFO L374 BuchiCegarLoop]: Interprodecural is true 11.24/5.61 [2019-03-29 01:46:20,364 INFO L375 BuchiCegarLoop]: Hoare is true 11.24/5.61 [2019-03-29 01:46:20,364 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates 11.24/5.61 [2019-03-29 01:46:20,365 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE 11.24/5.61 [2019-03-29 01:46:20,365 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION 11.24/5.61 [2019-03-29 01:46:20,365 INFO L379 BuchiCegarLoop]: Difference is false 11.24/5.61 [2019-03-29 01:46:20,365 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA 11.24/5.61 [2019-03-29 01:46:20,365 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== 11.24/5.61 [2019-03-29 01:46:20,368 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2 states. 11.24/5.61 [2019-03-29 01:46:20,385 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 11.24/5.61 [2019-03-29 01:46:20,386 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 11.24/5.61 [2019-03-29 01:46:20,386 INFO L119 BuchiIsEmpty]: Starting construction of run 11.24/5.61 [2019-03-29 01:46:20,391 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] 11.24/5.61 [2019-03-29 01:46:20,391 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] 11.24/5.61 [2019-03-29 01:46:20,391 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ 11.24/5.61 [2019-03-29 01:46:20,391 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2 states. 11.24/5.61 [2019-03-29 01:46:20,392 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 11.24/5.61 [2019-03-29 01:46:20,392 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 11.24/5.61 [2019-03-29 01:46:20,392 INFO L119 BuchiIsEmpty]: Starting construction of run 11.24/5.61 [2019-03-29 01:46:20,392 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] 11.24/5.61 [2019-03-29 01:46:20,393 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] 11.24/5.61 [2019-03-29 01:46:20,398 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [19] ULTIMATE.startENTRY-->L13-2: Formula: true InVars {} OutVars{ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#res] 4#L13-2true 11.24/5.61 [2019-03-29 01:46:20,398 INFO L796 eck$LassoCheckResult]: Loop: 4#L13-2true [26] L13-2-->L13-2: Formula: (< 0 v_rep~unnamed0~0~true_1) InVars {v_rep~unnamed0~0~true_1=v_rep~unnamed0~0~true_1} OutVars{v_rep~unnamed0~0~true_1=v_rep~unnamed0~0~true_1} AuxVars[] AssignedVars[] 4#L13-2true 11.24/5.61 [2019-03-29 01:46:20,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 11.24/5.61 [2019-03-29 01:46:20,404 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 1 times 11.24/5.61 [2019-03-29 01:46:20,406 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 11.24/5.61 [2019-03-29 01:46:20,407 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 11.24/5.61 [2019-03-29 01:46:20,436 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 11.24/5.61 [2019-03-29 01:46:20,436 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 11.24/5.61 [2019-03-29 01:46:20,436 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 11.24/5.61 [2019-03-29 01:46:20,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 11.24/5.61 [2019-03-29 01:46:20,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 11.24/5.61 [2019-03-29 01:46:20,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 11.24/5.61 [2019-03-29 01:46:20,475 INFO L82 PathProgramCache]: Analyzing trace with hash 57, now seen corresponding path program 1 times 11.24/5.61 [2019-03-29 01:46:20,475 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 11.24/5.61 [2019-03-29 01:46:20,475 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 11.24/5.61 [2019-03-29 01:46:20,477 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 11.24/5.61 [2019-03-29 01:46:20,477 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 11.24/5.61 [2019-03-29 01:46:20,477 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 11.24/5.61 [2019-03-29 01:46:20,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 11.24/5.61 [2019-03-29 01:46:20,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 11.24/5.61 [2019-03-29 01:46:20,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 11.24/5.61 [2019-03-29 01:46:20,484 INFO L82 PathProgramCache]: Analyzing trace with hash 1576, now seen corresponding path program 1 times 11.24/5.61 [2019-03-29 01:46:20,484 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 11.24/5.61 [2019-03-29 01:46:20,484 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 11.24/5.61 [2019-03-29 01:46:20,486 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 11.24/5.61 [2019-03-29 01:46:20,486 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 11.24/5.61 [2019-03-29 01:46:20,486 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 11.24/5.61 [2019-03-29 01:46:20,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 11.24/5.61 [2019-03-29 01:46:20,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 11.24/5.61 [2019-03-29 01:46:20,520 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier1,QUANTIFIED] 11.24/5.61 [2019-03-29 01:46:20,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.03 01:46:20 BasicIcfg 11.24/5.61 [2019-03-29 01:46:20,537 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- 11.24/5.61 [2019-03-29 01:46:20,537 INFO L168 Benchmark]: Toolchain (without parser) took 963.56 ms. Allocated memory was 649.6 MB in the beginning and 683.1 MB in the end (delta: 33.6 MB). Free memory was 564.6 MB in the beginning and 609.7 MB in the end (delta: -45.0 MB). There was no memory consumed. Max. memory is 50.3 GB. 11.24/5.61 [2019-03-29 01:46:20,540 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 649.6 MB. Free memory is still 585.4 MB. There was no memory consumed. Max. memory is 50.3 GB. 11.24/5.61 [2019-03-29 01:46:20,541 INFO L168 Benchmark]: CACSL2BoogieTranslator took 219.82 ms. Allocated memory is still 649.6 MB. Free memory was 563.6 MB in the beginning and 553.8 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 50.3 GB. 11.24/5.61 [2019-03-29 01:46:20,542 INFO L168 Benchmark]: Boogie Procedure Inliner took 97.45 ms. Allocated memory was 649.6 MB in the beginning and 683.1 MB in the end (delta: 33.6 MB). Free memory was 553.8 MB in the beginning and 651.1 MB in the end (delta: -97.2 MB). Peak memory consumption was 20.3 MB. Max. memory is 50.3 GB. 11.24/5.61 [2019-03-29 01:46:20,543 INFO L168 Benchmark]: Boogie Preprocessor took 20.22 ms. Allocated memory is still 683.1 MB. Free memory was 651.1 MB in the beginning and 647.1 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 50.3 GB. 11.24/5.61 [2019-03-29 01:46:20,543 INFO L168 Benchmark]: RCFGBuilder took 176.16 ms. Allocated memory is still 683.1 MB. Free memory was 647.1 MB in the beginning and 635.7 MB in the end (delta: 11.4 MB). Peak memory consumption was 11.4 MB. Max. memory is 50.3 GB. 11.24/5.61 [2019-03-29 01:46:20,544 INFO L168 Benchmark]: BlockEncodingV2 took 71.37 ms. Allocated memory is still 683.1 MB. Free memory was 635.7 MB in the beginning and 631.4 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 50.3 GB. 11.24/5.61 [2019-03-29 01:46:20,545 INFO L168 Benchmark]: TraceAbstraction took 162.96 ms. Allocated memory is still 683.1 MB. Free memory was 631.4 MB in the beginning and 622.8 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 50.3 GB. 11.24/5.61 [2019-03-29 01:46:20,545 INFO L168 Benchmark]: BuchiAutomizer took 209.97 ms. Allocated memory is still 683.1 MB. Free memory was 621.7 MB in the beginning and 609.7 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 50.3 GB. 11.24/5.61 [2019-03-29 01:46:20,550 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### 11.24/5.61 --- Results --- 11.24/5.61 * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: 11.24/5.61 - StatisticsResult: Initial Icfg 11.24/5.61 6 locations, 7 edges 11.24/5.61 - StatisticsResult: Encoded RCFG 11.24/5.61 2 locations, 3 edges 11.24/5.61 * Results from de.uni_freiburg.informatik.ultimate.core: 11.24/5.61 - StatisticsResult: Toolchain Benchmarks 11.24/5.61 Benchmark results are: 11.24/5.61 * CDTParser took 0.16 ms. Allocated memory is still 649.6 MB. Free memory is still 585.4 MB. There was no memory consumed. Max. memory is 50.3 GB. 11.24/5.61 * CACSL2BoogieTranslator took 219.82 ms. Allocated memory is still 649.6 MB. Free memory was 563.6 MB in the beginning and 553.8 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 50.3 GB. 11.24/5.61 * Boogie Procedure Inliner took 97.45 ms. Allocated memory was 649.6 MB in the beginning and 683.1 MB in the end (delta: 33.6 MB). Free memory was 553.8 MB in the beginning and 651.1 MB in the end (delta: -97.2 MB). Peak memory consumption was 20.3 MB. Max. memory is 50.3 GB. 11.24/5.61 * Boogie Preprocessor took 20.22 ms. Allocated memory is still 683.1 MB. Free memory was 651.1 MB in the beginning and 647.1 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 50.3 GB. 11.24/5.61 * RCFGBuilder took 176.16 ms. Allocated memory is still 683.1 MB. Free memory was 647.1 MB in the beginning and 635.7 MB in the end (delta: 11.4 MB). Peak memory consumption was 11.4 MB. Max. memory is 50.3 GB. 11.24/5.61 * BlockEncodingV2 took 71.37 ms. Allocated memory is still 683.1 MB. Free memory was 635.7 MB in the beginning and 631.4 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 50.3 GB. 11.24/5.61 * TraceAbstraction took 162.96 ms. Allocated memory is still 683.1 MB. Free memory was 631.4 MB in the beginning and 622.8 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 50.3 GB. 11.24/5.61 * BuchiAutomizer took 209.97 ms. Allocated memory is still 683.1 MB. Free memory was 621.7 MB in the beginning and 609.7 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 50.3 GB. 11.24/5.61 * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: 11.24/5.61 - GenericResult: Unfinished Backtranslation 11.24/5.61 Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier1,QUANTIFIED] 11.24/5.61 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: 11.24/5.61 - AllSpecificationsHoldResult: All specifications hold 11.24/5.61 We were not able to verify any specifiation because the program does not contain any specification. 11.24/5.61 - InvariantResult [Line: 13]: Loop Invariant 11.24/5.61 Derived loop invariant: 1 11.24/5.61 - StatisticsResult: Ultimate Automizer benchmark data 11.24/5.61 CFG has 1 procedures, 2 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=2occurred 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 11.24/5.61 - StatisticsResult: Constructed decomposition of program 11.24/5.61 Trivial decomposition into one nonterminating module. 11.24/5.61 - StatisticsResult: Timing statistics 11.24/5.61 BüchiAutomizer plugin needed 0.1s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: No data available LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s 11.24/5.61 - TerminationAnalysisResult: Nontermination possible 11.24/5.61 Buchi Automizer proved that your program is nonterminating for some inputs 11.24/5.61 - FixpointNonTerminationResult [Line: 13]: Nontermination argument in form of an infinite program execution. 11.24/5.61 [2019-03-29 01:46:20,560 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier2,QUANTIFIED] 11.24/5.61 [2019-03-29 01:46:20,560 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier3,QUANTIFIED] 11.24/5.61 Nontermination argument in form of an infinite execution 11.24/5.61 State at position 0 is 11.24/5.61 {} 11.24/5.61 State at position 1 is 11.24/5.61 {freshIdentifier3=1, \result=0} 11.24/5.61 - StatisticsResult: NonterminationArgumentStatistics 11.24/5.61 Fixpoint 11.24/5.61 - NonterminatingLassoResult [Line: 13]: Nonterminating execution 11.24/5.61 Found a nonterminating execution for the following lasso shaped sequence of statements. 11.24/5.61 Stem: 11.24/5.61 Loop: 11.24/5.61 [L13] COND TRUE \read(true) 11.24/5.61 End of lasso representation. 11.24/5.61 RESULT: Ultimate proved your program to be incorrect! 11.24/5.61 !SESSION 2019-03-29 01:46:16.280 ----------------------------------------------- 11.24/5.61 eclipse.buildId=unknown 11.24/5.61 java.version=1.8.0_181 11.24/5.61 java.vendor=Oracle Corporation 11.24/5.61 BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US 11.24/5.61 Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox/benchmark/theBenchmark.c 11.24/5.61 Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox/tmp -i /export/starexec/sandbox/benchmark/theBenchmark.c 11.24/5.61 11.24/5.61 !ENTRY org.eclipse.core.resources 2 10035 2019-03-29 01:46:20.785 11.24/5.61 !MESSAGE The workspace will exit with unsaved changes in this session. 11.24/5.61 Received shutdown request... 11.24/5.61 Ultimate: 11.24/5.61 GTK+ Version Check 11.24/5.61 EOF