12.54/5.59 NO 12.54/5.59 12.54/5.59 Ultimate: Cannot open display: 12.54/5.59 This is Ultimate 0.1.24-8dc7c08-m 12.54/5.59 [2019-03-29 01:57:44,670 INFO L170 SettingsManager]: Resetting all preferences to default values... 12.54/5.59 [2019-03-29 01:57:44,672 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values 12.54/5.59 [2019-03-29 01:57:44,684 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 12.54/5.59 [2019-03-29 01:57:44,685 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values 12.54/5.59 [2019-03-29 01:57:44,686 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values 12.54/5.59 [2019-03-29 01:57:44,687 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values 12.54/5.59 [2019-03-29 01:57:44,688 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values 12.54/5.59 [2019-03-29 01:57:44,690 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values 12.54/5.59 [2019-03-29 01:57:44,691 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values 12.54/5.59 [2019-03-29 01:57:44,692 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 12.54/5.59 [2019-03-29 01:57:44,692 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values 12.54/5.59 [2019-03-29 01:57:44,693 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values 12.54/5.59 [2019-03-29 01:57:44,694 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values 12.54/5.59 [2019-03-29 01:57:44,695 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values 12.54/5.59 [2019-03-29 01:57:44,696 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values 12.54/5.59 [2019-03-29 01:57:44,696 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values 12.54/5.59 [2019-03-29 01:57:44,698 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values 12.54/5.59 [2019-03-29 01:57:44,701 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values 12.54/5.59 [2019-03-29 01:57:44,703 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values 12.54/5.59 [2019-03-29 01:57:44,704 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values 12.54/5.59 [2019-03-29 01:57:44,705 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values 12.54/5.59 [2019-03-29 01:57:44,707 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 12.54/5.59 [2019-03-29 01:57:44,707 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... 12.54/5.59 [2019-03-29 01:57:44,708 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values 12.54/5.59 [2019-03-29 01:57:44,708 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values 12.54/5.59 [2019-03-29 01:57:44,709 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values 12.54/5.59 [2019-03-29 01:57:44,710 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... 12.54/5.59 [2019-03-29 01:57:44,710 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values 12.54/5.59 [2019-03-29 01:57:44,711 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values 12.54/5.59 [2019-03-29 01:57:44,712 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values 12.54/5.59 [2019-03-29 01:57:44,712 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values 12.54/5.59 [2019-03-29 01:57:44,713 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... 12.54/5.59 [2019-03-29 01:57:44,714 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values 12.54/5.59 [2019-03-29 01:57:44,714 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 12.54/5.59 [2019-03-29 01:57:44,715 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... 12.54/5.59 [2019-03-29 01:57:44,715 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values 12.54/5.59 [2019-03-29 01:57:44,716 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values 12.54/5.59 [2019-03-29 01:57:44,716 INFO L181 SettingsManager]: Finished resetting all preferences to default values... 12.54/5.59 [2019-03-29 01:57:44,717 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf 12.54/5.59 [2019-03-29 01:57:44,732 INFO L110 SettingsManager]: Loading preferences was successful 12.54/5.59 [2019-03-29 01:57:44,732 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: 12.54/5.59 [2019-03-29 01:57:44,734 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: 12.54/5.59 [2019-03-29 01:57:44,734 INFO L133 SettingsManager]: * Rewrite not-equals=true 12.54/5.59 [2019-03-29 01:57:44,734 INFO L133 SettingsManager]: * Create parallel compositions if possible=false 12.54/5.59 [2019-03-29 01:57:44,734 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE 12.54/5.59 [2019-03-29 01:57:44,734 INFO L133 SettingsManager]: * Use SBE=true 12.54/5.59 [2019-03-29 01:57:44,735 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: 12.54/5.59 [2019-03-29 01:57:44,735 INFO L133 SettingsManager]: * Use old map elimination=false 12.54/5.59 [2019-03-29 01:57:44,735 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false 12.54/5.59 [2019-03-29 01:57:44,735 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION 12.54/5.59 [2019-03-29 01:57:44,735 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true 12.54/5.59 [2019-03-29 01:57:44,735 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES 12.54/5.59 [2019-03-29 01:57:44,736 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true 12.54/5.59 [2019-03-29 01:57:44,736 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 12.54/5.59 [2019-03-29 01:57:44,736 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: 12.54/5.59 [2019-03-29 01:57:44,736 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false 12.54/5.59 [2019-03-29 01:57:44,736 INFO L133 SettingsManager]: * Check division by zero=IGNORE 12.54/5.59 [2019-03-29 01:57:44,737 INFO L133 SettingsManager]: * Check if freed pointer was valid=false 12.54/5.59 [2019-03-29 01:57:44,737 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false 12.54/5.59 [2019-03-29 01:57:44,737 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE 12.54/5.59 [2019-03-29 01:57:44,737 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: 12.54/5.59 [2019-03-29 01:57:44,737 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements 12.54/5.59 [2019-03-29 01:57:44,738 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump 12.54/5.59 [2019-03-29 01:57:44,738 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 12.54/5.59 [2019-03-29 01:57:44,738 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: 12.54/5.59 [2019-03-29 01:57:44,738 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles 12.54/5.59 [2019-03-29 01:57:44,738 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL 12.54/5.59 [2019-03-29 01:57:44,738 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 12.54/5.59 [2019-03-29 01:57:44,765 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp 12.54/5.59 [2019-03-29 01:57:44,779 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized 12.54/5.59 [2019-03-29 01:57:44,782 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. 12.54/5.59 [2019-03-29 01:57:44,784 INFO L271 PluginConnector]: Initializing CDTParser... 12.54/5.59 [2019-03-29 01:57:44,784 INFO L276 PluginConnector]: CDTParser initialized 12.54/5.59 [2019-03-29 01:57:44,785 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c 12.54/5.59 [2019-03-29 01:57:44,851 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/ed7dd7d9b62b447db7d3bd66912d0dc5/FLAG3d5e32320 12.54/5.59 [2019-03-29 01:57:45,189 INFO L307 CDTParser]: Found 1 translation units. 12.54/5.59 [2019-03-29 01:57:45,190 INFO L161 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c 12.54/5.59 [2019-03-29 01:57:45,196 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/ed7dd7d9b62b447db7d3bd66912d0dc5/FLAG3d5e32320 12.54/5.59 [2019-03-29 01:57:45,582 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/ed7dd7d9b62b447db7d3bd66912d0dc5 12.54/5.59 [2019-03-29 01:57:45,593 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### 12.54/5.59 [2019-03-29 01:57:45,595 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. 12.54/5.59 [2019-03-29 01:57:45,596 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- 12.54/5.59 [2019-03-29 01:57:45,596 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... 12.54/5.59 [2019-03-29 01:57:45,600 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized 12.54/5.59 [2019-03-29 01:57:45,601 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.03 01:57:45" (1/1) ... 12.54/5.59 [2019-03-29 01:57:45,604 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3823de4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 01:57:45, skipping insertion in model container 12.54/5.59 [2019-03-29 01:57:45,604 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.03 01:57:45" (1/1) ... 12.54/5.59 [2019-03-29 01:57:45,612 INFO L145 MainTranslator]: Starting translation in SV-COMP mode 12.54/5.59 [2019-03-29 01:57:45,630 INFO L176 MainTranslator]: Built tables and reachable declarations 12.54/5.59 [2019-03-29 01:57:45,788 INFO L206 PostProcessor]: Analyzing one entry point: main 12.54/5.59 [2019-03-29 01:57:45,793 INFO L191 MainTranslator]: Completed pre-run 12.54/5.59 [2019-03-29 01:57:45,808 INFO L206 PostProcessor]: Analyzing one entry point: main 12.54/5.59 [2019-03-29 01:57:45,822 INFO L195 MainTranslator]: Completed translation 12.54/5.59 [2019-03-29 01:57:45,823 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 01:57:45 WrapperNode 12.54/5.59 [2019-03-29 01:57:45,823 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- 12.54/5.59 [2019-03-29 01:57:45,824 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- 12.54/5.59 [2019-03-29 01:57:45,824 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... 12.54/5.59 [2019-03-29 01:57:45,824 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized 12.54/5.59 [2019-03-29 01:57:45,887 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 01:57:45" (1/1) ... 12.54/5.59 [2019-03-29 01:57:45,894 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 01:57:45" (1/1) ... 12.54/5.59 [2019-03-29 01:57:45,914 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- 12.54/5.59 [2019-03-29 01:57:45,914 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- 12.54/5.59 [2019-03-29 01:57:45,914 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... 12.54/5.59 [2019-03-29 01:57:45,914 INFO L276 PluginConnector]: Boogie Preprocessor initialized 12.54/5.59 [2019-03-29 01:57:45,924 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 01:57:45" (1/1) ... 12.54/5.59 [2019-03-29 01:57:45,924 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 01:57:45" (1/1) ... 12.54/5.59 [2019-03-29 01:57:45,925 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 01:57:45" (1/1) ... 12.54/5.59 [2019-03-29 01:57:45,925 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 01:57:45" (1/1) ... 12.54/5.59 [2019-03-29 01:57:45,927 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 01:57:45" (1/1) ... 12.54/5.59 [2019-03-29 01:57:45,931 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 01:57:45" (1/1) ... 12.54/5.59 [2019-03-29 01:57:45,932 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 01:57:45" (1/1) ... 12.54/5.59 [2019-03-29 01:57:45,933 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- 12.54/5.59 [2019-03-29 01:57:45,934 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- 12.54/5.59 [2019-03-29 01:57:45,934 INFO L271 PluginConnector]: Initializing RCFGBuilder... 12.54/5.59 [2019-03-29 01:57:45,934 INFO L276 PluginConnector]: RCFGBuilder initialized 12.54/5.59 [2019-03-29 01:57:45,935 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 01:57:45" (1/1) ... 12.54/5.59 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 12.54/5.59 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) 12.54/5.59 Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 12.54/5.59 [2019-03-29 01:57:46,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start 12.54/5.59 [2019-03-29 01:57:46,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start 12.54/5.59 [2019-03-29 01:57:46,124 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) 12.54/5.59 [2019-03-29 01:57:46,124 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. 12.54/5.59 [2019-03-29 01:57:46,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.03 01:57:46 BoogieIcfgContainer 12.54/5.59 [2019-03-29 01:57:46,126 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- 12.54/5.59 [2019-03-29 01:57:46,126 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- 12.54/5.59 [2019-03-29 01:57:46,127 INFO L271 PluginConnector]: Initializing BlockEncodingV2... 12.54/5.59 [2019-03-29 01:57:46,129 INFO L276 PluginConnector]: BlockEncodingV2 initialized 12.54/5.59 [2019-03-29 01:57:46,130 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.03 01:57:46" (1/1) ... 12.54/5.59 [2019-03-29 01:57:46,148 INFO L313 BlockEncoder]: Initial Icfg 6 locations, 7 edges 12.54/5.59 [2019-03-29 01:57:46,150 INFO L258 BlockEncoder]: Using Remove infeasible edges 12.54/5.59 [2019-03-29 01:57:46,151 INFO L263 BlockEncoder]: Using Maximize final states 12.54/5.59 [2019-03-29 01:57:46,151 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false 12.54/5.59 [2019-03-29 01:57:46,152 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE 12.54/5.59 [2019-03-29 01:57:46,153 INFO L296 BlockEncoder]: Using Remove sink states 12.54/5.59 [2019-03-29 01:57:46,154 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true 12.54/5.59 [2019-03-29 01:57:46,155 INFO L179 BlockEncoder]: Using Rewrite not-equals 12.54/5.59 [2019-03-29 01:57:46,170 INFO L185 BlockEncoder]: Using Use SBE 12.54/5.59 [2019-03-29 01:57:46,178 INFO L200 BlockEncoder]: SBE split 0 edges 12.54/5.59 [2019-03-29 01:57:46,184 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility 12.54/5.59 [2019-03-29 01:57:46,186 INFO L71 MaximizeFinalStates]: 0 new accepting states 12.54/5.59 [2019-03-29 01:57:46,202 INFO L100 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding 12.54/5.59 [2019-03-29 01:57:46,204 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states 12.54/5.59 [2019-03-29 01:57:46,206 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility 12.54/5.59 [2019-03-29 01:57:46,206 INFO L71 MaximizeFinalStates]: 0 new accepting states 12.54/5.59 [2019-03-29 01:57:46,206 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding 12.54/5.59 [2019-03-29 01:57:46,206 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states 12.54/5.59 [2019-03-29 01:57:46,207 INFO L313 BlockEncoder]: Encoded RCFG 2 locations, 2 edges 12.54/5.59 [2019-03-29 01:57:46,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 29.03 01:57:46 BasicIcfg 12.54/5.59 [2019-03-29 01:57:46,207 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- 12.54/5.59 [2019-03-29 01:57:46,208 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- 12.54/5.59 [2019-03-29 01:57:46,208 INFO L271 PluginConnector]: Initializing TraceAbstraction... 12.54/5.59 [2019-03-29 01:57:46,212 INFO L276 PluginConnector]: TraceAbstraction initialized 12.54/5.59 [2019-03-29 01:57:46,212 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.03 01:57:45" (1/4) ... 12.54/5.59 [2019-03-29 01:57:46,213 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72463d21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.03 01:57:46, skipping insertion in model container 12.54/5.59 [2019-03-29 01:57:46,214 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 01:57:45" (2/4) ... 12.54/5.59 [2019-03-29 01:57:46,214 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72463d21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.03 01:57:46, skipping insertion in model container 12.54/5.59 [2019-03-29 01:57:46,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.03 01:57:46" (3/4) ... 12.54/5.59 [2019-03-29 01:57:46,215 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72463d21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.03 01:57:46, skipping insertion in model container 12.54/5.59 [2019-03-29 01:57:46,216 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 29.03 01:57:46" (4/4) ... 12.54/5.59 [2019-03-29 01:57:46,217 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 12.54/5.59 [2019-03-29 01:57:46,228 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION 12.54/5.59 [2019-03-29 01:57:46,236 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. 12.54/5.59 [2019-03-29 01:57:46,255 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. 12.54/5.59 [2019-03-29 01:57:46,285 INFO L133 ementStrategyFactory]: Using default assertion order modulation 12.54/5.59 [2019-03-29 01:57:46,286 INFO L382 AbstractCegarLoop]: Interprodecural is true 12.54/5.59 [2019-03-29 01:57:46,286 INFO L383 AbstractCegarLoop]: Hoare is true 12.54/5.59 [2019-03-29 01:57:46,287 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates 12.54/5.59 [2019-03-29 01:57:46,287 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE 12.54/5.59 [2019-03-29 01:57:46,287 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION 12.54/5.59 [2019-03-29 01:57:46,287 INFO L387 AbstractCegarLoop]: Difference is false 12.54/5.59 [2019-03-29 01:57:46,287 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA 12.54/5.59 [2019-03-29 01:57:46,287 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== 12.54/5.59 [2019-03-29 01:57:46,303 INFO L276 IsEmpty]: Start isEmpty. Operand 2 states. 12.54/5.59 [2019-03-29 01:57:46,308 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. 12.54/5.59 [2019-03-29 01:57:46,312 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 2 states. 12.54/5.59 [2019-03-29 01:57:46,364 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. 12.54/5.59 [2019-03-29 01:57:46,365 INFO L451 ceAbstractionStarter]: At program point L26-2(lines 26 28) the Hoare annotation is: true 12.54/5.59 [2019-03-29 01:57:46,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.03 01:57:46 BasicIcfg 12.54/5.59 [2019-03-29 01:57:46,373 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- 12.54/5.59 [2019-03-29 01:57:46,373 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- 12.54/5.59 [2019-03-29 01:57:46,374 INFO L271 PluginConnector]: Initializing BuchiAutomizer... 12.54/5.59 [2019-03-29 01:57:46,378 INFO L276 PluginConnector]: BuchiAutomizer initialized 12.54/5.59 [2019-03-29 01:57:46,379 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 12.54/5.59 [2019-03-29 01:57:46,379 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.03 01:57:45" (1/5) ... 12.54/5.59 [2019-03-29 01:57:46,380 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4713aa12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.03 01:57:46, skipping insertion in model container 12.54/5.59 [2019-03-29 01:57:46,380 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 12.54/5.59 [2019-03-29 01:57:46,380 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 01:57:45" (2/5) ... 12.54/5.59 [2019-03-29 01:57:46,380 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4713aa12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.03 01:57:46, skipping insertion in model container 12.54/5.59 [2019-03-29 01:57:46,380 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 12.54/5.59 [2019-03-29 01:57:46,380 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.03 01:57:46" (3/5) ... 12.54/5.59 [2019-03-29 01:57:46,381 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4713aa12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.03 01:57:46, skipping insertion in model container 12.54/5.59 [2019-03-29 01:57:46,381 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 12.54/5.59 [2019-03-29 01:57:46,381 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 29.03 01:57:46" (4/5) ... 12.54/5.59 [2019-03-29 01:57:46,382 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4713aa12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.03 01:57:46, skipping insertion in model container 12.54/5.59 [2019-03-29 01:57:46,382 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 12.54/5.59 [2019-03-29 01:57:46,382 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.03 01:57:46" (5/5) ... 12.54/5.59 [2019-03-29 01:57:46,383 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 12.54/5.59 [2019-03-29 01:57:46,415 INFO L133 ementStrategyFactory]: Using default assertion order modulation 12.54/5.59 [2019-03-29 01:57:46,416 INFO L374 BuchiCegarLoop]: Interprodecural is true 12.54/5.59 [2019-03-29 01:57:46,416 INFO L375 BuchiCegarLoop]: Hoare is true 12.54/5.59 [2019-03-29 01:57:46,416 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates 12.54/5.59 [2019-03-29 01:57:46,416 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE 12.54/5.59 [2019-03-29 01:57:46,416 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION 12.54/5.59 [2019-03-29 01:57:46,417 INFO L379 BuchiCegarLoop]: Difference is false 12.54/5.59 [2019-03-29 01:57:46,417 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA 12.54/5.59 [2019-03-29 01:57:46,417 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== 12.54/5.59 [2019-03-29 01:57:46,421 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2 states. 12.54/5.59 [2019-03-29 01:57:46,440 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 12.54/5.59 [2019-03-29 01:57:46,440 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 12.54/5.59 [2019-03-29 01:57:46,440 INFO L119 BuchiIsEmpty]: Starting construction of run 12.54/5.59 [2019-03-29 01:57:46,446 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] 12.54/5.59 [2019-03-29 01:57:46,446 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] 12.54/5.59 [2019-03-29 01:57:46,447 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ 12.54/5.59 [2019-03-29 01:57:46,447 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2 states. 12.54/5.59 [2019-03-29 01:57:46,447 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 12.54/5.59 [2019-03-29 01:57:46,448 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 12.54/5.59 [2019-03-29 01:57:46,448 INFO L119 BuchiIsEmpty]: Starting construction of run 12.54/5.59 [2019-03-29 01:57:46,448 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] 12.54/5.59 [2019-03-29 01:57:46,448 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] 12.54/5.59 [2019-03-29 01:57:46,454 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [18] ULTIMATE.startENTRY-->L26-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_2|} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 4#L26-2true 12.54/5.59 [2019-03-29 01:57:46,454 INFO L796 eck$LassoCheckResult]: Loop: 4#L26-2true [23] L26-2-->L26-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_7 (+ v_ULTIMATE.start_main_~x~0_8 v_ULTIMATE.start_main_~y~0_6)) (< 0 v_ULTIMATE.start_main_~x~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 4#L26-2true 12.54/5.59 [2019-03-29 01:57:46,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 12.54/5.59 [2019-03-29 01:57:46,461 INFO L82 PathProgramCache]: Analyzing trace with hash 49, now seen corresponding path program 1 times 12.54/5.59 [2019-03-29 01:57:46,463 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 12.54/5.59 [2019-03-29 01:57:46,464 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 12.54/5.59 [2019-03-29 01:57:46,493 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 12.54/5.59 [2019-03-29 01:57:46,493 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 12.54/5.59 [2019-03-29 01:57:46,494 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 12.54/5.59 [2019-03-29 01:57:46,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 12.54/5.59 [2019-03-29 01:57:46,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 12.54/5.59 [2019-03-29 01:57:46,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 12.54/5.59 [2019-03-29 01:57:46,539 INFO L82 PathProgramCache]: Analyzing trace with hash 54, now seen corresponding path program 1 times 12.54/5.59 [2019-03-29 01:57:46,539 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 12.54/5.59 [2019-03-29 01:57:46,539 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 12.54/5.59 [2019-03-29 01:57:46,541 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 12.54/5.59 [2019-03-29 01:57:46,541 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 12.54/5.59 [2019-03-29 01:57:46,541 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 12.54/5.59 [2019-03-29 01:57:46,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 12.54/5.59 [2019-03-29 01:57:46,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 12.54/5.59 [2019-03-29 01:57:46,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 12.54/5.59 [2019-03-29 01:57:46,552 INFO L82 PathProgramCache]: Analyzing trace with hash 1542, now seen corresponding path program 1 times 12.54/5.59 [2019-03-29 01:57:46,552 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 12.54/5.59 [2019-03-29 01:57:46,552 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 12.54/5.59 [2019-03-29 01:57:46,553 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 12.54/5.59 [2019-03-29 01:57:46,554 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 12.54/5.59 [2019-03-29 01:57:46,554 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 12.54/5.59 [2019-03-29 01:57:46,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 12.54/5.59 [2019-03-29 01:57:46,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 12.54/5.59 [2019-03-29 01:57:46,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.03 01:57:46 BasicIcfg 12.54/5.59 [2019-03-29 01:57:46,623 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- 12.54/5.59 [2019-03-29 01:57:46,623 INFO L168 Benchmark]: Toolchain (without parser) took 1029.50 ms. Allocated memory was 649.6 MB in the beginning and 651.2 MB in the end (delta: 1.6 MB). Free memory was 565.0 MB in the beginning and 573.3 MB in the end (delta: -8.4 MB). There was no memory consumed. Max. memory is 50.3 GB. 12.54/5.59 [2019-03-29 01:57:46,625 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 649.6 MB. Free memory is still 591.9 MB. There was no memory consumed. Max. memory is 50.3 GB. 12.54/5.59 [2019-03-29 01:57:46,625 INFO L168 Benchmark]: CACSL2BoogieTranslator took 227.59 ms. Allocated memory is still 649.6 MB. Free memory was 565.0 MB in the beginning and 555.5 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 50.3 GB. 12.54/5.59 [2019-03-29 01:57:46,626 INFO L168 Benchmark]: Boogie Procedure Inliner took 90.01 ms. Allocated memory was 649.6 MB in the beginning and 651.2 MB in the end (delta: 1.6 MB). Free memory was 555.5 MB in the beginning and 617.8 MB in the end (delta: -62.4 MB). Peak memory consumption was 21.5 MB. Max. memory is 50.3 GB. 12.54/5.59 [2019-03-29 01:57:46,627 INFO L168 Benchmark]: Boogie Preprocessor took 19.31 ms. Allocated memory is still 651.2 MB. Free memory was 617.8 MB in the beginning and 614.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 50.3 GB. 12.54/5.59 [2019-03-29 01:57:46,628 INFO L168 Benchmark]: RCFGBuilder took 192.46 ms. Allocated memory is still 651.2 MB. Free memory was 614.7 MB in the beginning and 601.8 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 50.3 GB. 12.54/5.59 [2019-03-29 01:57:46,628 INFO L168 Benchmark]: BlockEncodingV2 took 80.98 ms. Allocated memory is still 651.2 MB. Free memory was 601.8 MB in the beginning and 597.7 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 50.3 GB. 12.54/5.59 [2019-03-29 01:57:46,629 INFO L168 Benchmark]: TraceAbstraction took 164.46 ms. Allocated memory is still 651.2 MB. Free memory was 596.4 MB in the beginning and 588.2 MB in the end (delta: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 50.3 GB. 12.54/5.59 [2019-03-29 01:57:46,629 INFO L168 Benchmark]: BuchiAutomizer took 249.28 ms. Allocated memory is still 651.2 MB. Free memory was 588.2 MB in the beginning and 573.3 MB in the end (delta: 14.9 MB). Peak memory consumption was 14.9 MB. Max. memory is 50.3 GB. 12.54/5.59 [2019-03-29 01:57:46,634 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### 12.54/5.59 --- Results --- 12.54/5.59 * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: 12.54/5.59 - StatisticsResult: Initial Icfg 12.54/5.59 6 locations, 7 edges 12.54/5.59 - StatisticsResult: Encoded RCFG 12.54/5.59 2 locations, 2 edges 12.54/5.59 * Results from de.uni_freiburg.informatik.ultimate.core: 12.54/5.59 - StatisticsResult: Toolchain Benchmarks 12.54/5.59 Benchmark results are: 12.54/5.59 * CDTParser took 0.19 ms. Allocated memory is still 649.6 MB. Free memory is still 591.9 MB. There was no memory consumed. Max. memory is 50.3 GB. 12.54/5.59 * CACSL2BoogieTranslator took 227.59 ms. Allocated memory is still 649.6 MB. Free memory was 565.0 MB in the beginning and 555.5 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 50.3 GB. 12.54/5.59 * Boogie Procedure Inliner took 90.01 ms. Allocated memory was 649.6 MB in the beginning and 651.2 MB in the end (delta: 1.6 MB). Free memory was 555.5 MB in the beginning and 617.8 MB in the end (delta: -62.4 MB). Peak memory consumption was 21.5 MB. Max. memory is 50.3 GB. 12.54/5.59 * Boogie Preprocessor took 19.31 ms. Allocated memory is still 651.2 MB. Free memory was 617.8 MB in the beginning and 614.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 50.3 GB. 12.54/5.59 * RCFGBuilder took 192.46 ms. Allocated memory is still 651.2 MB. Free memory was 614.7 MB in the beginning and 601.8 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 50.3 GB. 12.54/5.59 * BlockEncodingV2 took 80.98 ms. Allocated memory is still 651.2 MB. Free memory was 601.8 MB in the beginning and 597.7 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 50.3 GB. 12.54/5.59 * TraceAbstraction took 164.46 ms. Allocated memory is still 651.2 MB. Free memory was 596.4 MB in the beginning and 588.2 MB in the end (delta: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 50.3 GB. 12.54/5.59 * BuchiAutomizer took 249.28 ms. Allocated memory is still 651.2 MB. Free memory was 588.2 MB in the beginning and 573.3 MB in the end (delta: 14.9 MB). Peak memory consumption was 14.9 MB. Max. memory is 50.3 GB. 12.54/5.59 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: 12.54/5.59 - AllSpecificationsHoldResult: All specifications hold 12.54/5.59 We were not able to verify any specifiation because the program does not contain any specification. 12.54/5.59 - InvariantResult [Line: 26]: Loop Invariant 12.54/5.59 Derived loop invariant: 1 12.54/5.59 - StatisticsResult: Ultimate Automizer benchmark data 12.54/5.59 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 12.54/5.59 - StatisticsResult: Constructed decomposition of program 12.54/5.59 Trivial decomposition into one nonterminating module. 12.54/5.59 - StatisticsResult: Timing statistics 12.54/5.59 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 12.54/5.59 - TerminationAnalysisResult: Nontermination possible 12.54/5.59 Buchi Automizer proved that your program is nonterminating for some inputs 12.54/5.59 - FixpointNonTerminationResult [Line: 26]: Nontermination argument in form of an infinite program execution. 12.54/5.59 Nontermination argument in form of an infinite execution 12.54/5.59 State at position 0 is 12.54/5.59 {} 12.54/5.59 State at position 1 is 12.54/5.59 {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@44a214f9=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@97467a1=0, x=1, y=0} 12.54/5.59 - StatisticsResult: NonterminationArgumentStatistics 12.54/5.59 Fixpoint 12.54/5.59 - NonterminatingLassoResult [Line: 26]: Nonterminating execution 12.54/5.59 Found a nonterminating execution for the following lasso shaped sequence of statements. 12.54/5.59 Stem: 12.54/5.59 [L23] int x, y; 12.54/5.59 [L24] x = __VERIFIER_nondet_int() 12.54/5.59 [L25] y = __VERIFIER_nondet_int() 12.54/5.59 Loop: 12.54/5.59 [L26] COND TRUE x > 0 12.54/5.59 [L27] x = x + y 12.54/5.59 End of lasso representation. 12.54/5.59 RESULT: Ultimate proved your program to be incorrect! 12.54/5.59 !SESSION 2019-03-29 01:57:42.254 ----------------------------------------------- 12.54/5.59 eclipse.buildId=unknown 12.54/5.59 java.version=1.8.0_181 12.54/5.59 java.vendor=Oracle Corporation 12.54/5.59 BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US 12.54/5.59 Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox/benchmark/theBenchmark.c 12.54/5.59 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 12.54/5.59 12.54/5.59 !ENTRY org.eclipse.core.resources 2 10035 2019-03-29 01:57:46.869 12.54/5.59 !MESSAGE The workspace will exit with unsaved changes in this session. 12.54/5.59 Received shutdown request... 12.54/5.59 Ultimate: 12.54/5.59 GTK+ Version Check 12.54/5.59 EOF