11.52/6.35 NO 11.52/6.36 11.52/6.36 Ultimate: Cannot open display: 11.52/6.36 This is Ultimate 0.1.24-8dc7c08-m 11.52/6.36 [2019-03-28 22:53:00,429 INFO L170 SettingsManager]: Resetting all preferences to default values... 11.52/6.36 [2019-03-28 22:53:00,431 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values 11.52/6.36 [2019-03-28 22:53:00,443 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 11.52/6.36 [2019-03-28 22:53:00,443 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values 11.52/6.36 [2019-03-28 22:53:00,444 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values 11.52/6.36 [2019-03-28 22:53:00,445 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values 11.52/6.36 [2019-03-28 22:53:00,447 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values 11.52/6.36 [2019-03-28 22:53:00,448 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values 11.52/6.36 [2019-03-28 22:53:00,449 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values 11.52/6.36 [2019-03-28 22:53:00,450 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 11.52/6.36 [2019-03-28 22:53:00,450 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values 11.52/6.36 [2019-03-28 22:53:00,451 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values 11.52/6.36 [2019-03-28 22:53:00,452 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values 11.52/6.36 [2019-03-28 22:53:00,453 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values 11.52/6.36 [2019-03-28 22:53:00,453 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values 11.52/6.36 [2019-03-28 22:53:00,454 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values 11.52/6.36 [2019-03-28 22:53:00,456 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values 11.52/6.36 [2019-03-28 22:53:00,458 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values 11.52/6.36 [2019-03-28 22:53:00,459 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values 11.52/6.36 [2019-03-28 22:53:00,460 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values 11.52/6.36 [2019-03-28 22:53:00,461 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values 11.52/6.36 [2019-03-28 22:53:00,463 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 11.52/6.36 [2019-03-28 22:53:00,463 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... 11.52/6.36 [2019-03-28 22:53:00,464 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values 11.52/6.36 [2019-03-28 22:53:00,464 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values 11.52/6.36 [2019-03-28 22:53:00,465 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values 11.52/6.36 [2019-03-28 22:53:00,466 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... 11.52/6.36 [2019-03-28 22:53:00,466 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values 11.52/6.36 [2019-03-28 22:53:00,467 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values 11.52/6.36 [2019-03-28 22:53:00,467 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values 11.52/6.36 [2019-03-28 22:53:00,468 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values 11.52/6.36 [2019-03-28 22:53:00,469 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... 11.52/6.36 [2019-03-28 22:53:00,469 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values 11.52/6.36 [2019-03-28 22:53:00,470 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 11.52/6.36 [2019-03-28 22:53:00,470 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... 11.52/6.36 [2019-03-28 22:53:00,470 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values 11.52/6.36 [2019-03-28 22:53:00,471 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values 11.52/6.36 [2019-03-28 22:53:00,472 INFO L181 SettingsManager]: Finished resetting all preferences to default values... 11.52/6.36 [2019-03-28 22:53:00,472 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf 11.52/6.36 [2019-03-28 22:53:00,487 INFO L110 SettingsManager]: Loading preferences was successful 11.52/6.36 [2019-03-28 22:53:00,487 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: 11.52/6.36 [2019-03-28 22:53:00,488 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: 11.52/6.36 [2019-03-28 22:53:00,489 INFO L133 SettingsManager]: * Rewrite not-equals=true 11.52/6.36 [2019-03-28 22:53:00,489 INFO L133 SettingsManager]: * Create parallel compositions if possible=false 11.52/6.36 [2019-03-28 22:53:00,489 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE 11.52/6.36 [2019-03-28 22:53:00,489 INFO L133 SettingsManager]: * Use SBE=true 11.52/6.36 [2019-03-28 22:53:00,489 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: 11.52/6.36 [2019-03-28 22:53:00,490 INFO L133 SettingsManager]: * Use old map elimination=false 11.52/6.36 [2019-03-28 22:53:00,490 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false 11.52/6.36 [2019-03-28 22:53:00,490 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION 11.52/6.36 [2019-03-28 22:53:00,490 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true 11.52/6.36 [2019-03-28 22:53:00,490 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES 11.52/6.36 [2019-03-28 22:53:00,490 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true 11.52/6.36 [2019-03-28 22:53:00,491 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 11.52/6.36 [2019-03-28 22:53:00,491 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: 11.52/6.36 [2019-03-28 22:53:00,491 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false 11.52/6.36 [2019-03-28 22:53:00,491 INFO L133 SettingsManager]: * Check division by zero=IGNORE 11.52/6.36 [2019-03-28 22:53:00,491 INFO L133 SettingsManager]: * Check if freed pointer was valid=false 11.52/6.36 [2019-03-28 22:53:00,491 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false 11.52/6.36 [2019-03-28 22:53:00,492 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE 11.52/6.36 [2019-03-28 22:53:00,492 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: 11.52/6.36 [2019-03-28 22:53:00,492 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements 11.52/6.36 [2019-03-28 22:53:00,492 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump 11.52/6.36 [2019-03-28 22:53:00,492 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 11.52/6.36 [2019-03-28 22:53:00,492 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: 11.52/6.36 [2019-03-28 22:53:00,493 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles 11.52/6.36 [2019-03-28 22:53:00,493 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL 11.52/6.36 [2019-03-28 22:53:00,493 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 11.52/6.36 [2019-03-28 22:53:00,518 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp 11.52/6.36 [2019-03-28 22:53:00,532 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized 11.52/6.36 [2019-03-28 22:53:00,536 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. 11.52/6.36 [2019-03-28 22:53:00,537 INFO L271 PluginConnector]: Initializing CDTParser... 11.52/6.36 [2019-03-28 22:53:00,537 INFO L276 PluginConnector]: CDTParser initialized 11.52/6.36 [2019-03-28 22:53:00,538 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c 11.52/6.36 [2019-03-28 22:53:00,602 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/b5f232c7e2d44cbfaf51ae9de7b6eb19/FLAGda3e94c1e 11.52/6.36 [2019-03-28 22:53:00,940 INFO L307 CDTParser]: Found 1 translation units. 11.52/6.36 [2019-03-28 22:53:00,940 INFO L161 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c 11.52/6.36 [2019-03-28 22:53:00,947 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/b5f232c7e2d44cbfaf51ae9de7b6eb19/FLAGda3e94c1e 11.52/6.36 [2019-03-28 22:53:01,346 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/b5f232c7e2d44cbfaf51ae9de7b6eb19 11.52/6.36 [2019-03-28 22:53:01,358 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### 11.52/6.36 [2019-03-28 22:53:01,359 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. 11.52/6.36 [2019-03-28 22:53:01,360 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- 11.52/6.36 [2019-03-28 22:53:01,360 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... 11.52/6.36 [2019-03-28 22:53:01,364 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized 11.52/6.36 [2019-03-28 22:53:01,365 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.03 10:53:01" (1/1) ... 11.52/6.36 [2019-03-28 22:53:01,368 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62034958 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:53:01, skipping insertion in model container 11.52/6.36 [2019-03-28 22:53:01,369 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.03 10:53:01" (1/1) ... 11.52/6.36 [2019-03-28 22:53:01,376 INFO L145 MainTranslator]: Starting translation in SV-COMP mode 11.52/6.36 [2019-03-28 22:53:01,393 INFO L176 MainTranslator]: Built tables and reachable declarations 11.52/6.36 [2019-03-28 22:53:01,551 INFO L206 PostProcessor]: Analyzing one entry point: main 11.52/6.36 [2019-03-28 22:53:01,556 INFO L191 MainTranslator]: Completed pre-run 11.52/6.36 [2019-03-28 22:53:01,572 INFO L206 PostProcessor]: Analyzing one entry point: main 11.52/6.36 [2019-03-28 22:53:01,587 INFO L195 MainTranslator]: Completed translation 11.52/6.36 [2019-03-28 22:53:01,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:53:01 WrapperNode 11.52/6.36 [2019-03-28 22:53:01,588 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- 11.52/6.36 [2019-03-28 22:53:01,589 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- 11.52/6.36 [2019-03-28 22:53:01,589 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... 11.52/6.36 [2019-03-28 22:53:01,589 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized 11.52/6.36 [2019-03-28 22:53:01,659 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:53:01" (1/1) ... 11.52/6.36 [2019-03-28 22:53:01,665 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:53:01" (1/1) ... 11.52/6.36 [2019-03-28 22:53:01,685 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- 11.52/6.36 [2019-03-28 22:53:01,686 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- 11.52/6.36 [2019-03-28 22:53:01,686 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... 11.52/6.36 [2019-03-28 22:53:01,686 INFO L276 PluginConnector]: Boogie Preprocessor initialized 11.52/6.36 [2019-03-28 22:53:01,696 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:53:01" (1/1) ... 11.52/6.36 [2019-03-28 22:53:01,696 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:53:01" (1/1) ... 11.52/6.36 [2019-03-28 22:53:01,697 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:53:01" (1/1) ... 11.52/6.36 [2019-03-28 22:53:01,697 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:53:01" (1/1) ... 11.52/6.36 [2019-03-28 22:53:01,699 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:53:01" (1/1) ... 11.52/6.36 [2019-03-28 22:53:01,704 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:53:01" (1/1) ... 11.52/6.36 [2019-03-28 22:53:01,705 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:53:01" (1/1) ... 11.52/6.36 [2019-03-28 22:53:01,706 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- 11.52/6.36 [2019-03-28 22:53:01,707 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- 11.52/6.36 [2019-03-28 22:53:01,707 INFO L271 PluginConnector]: Initializing RCFGBuilder... 11.52/6.36 [2019-03-28 22:53:01,707 INFO L276 PluginConnector]: RCFGBuilder initialized 11.52/6.36 [2019-03-28 22:53:01,708 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:53:01" (1/1) ... 11.52/6.36 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 11.52/6.36 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) 11.52/6.36 Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 11.52/6.36 [2019-03-28 22:53:01,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start 11.52/6.36 [2019-03-28 22:53:01,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start 11.52/6.36 [2019-03-28 22:53:01,904 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) 11.52/6.36 [2019-03-28 22:53:01,904 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. 11.52/6.36 [2019-03-28 22:53:01,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 10:53:01 BoogieIcfgContainer 11.52/6.36 [2019-03-28 22:53:01,905 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- 11.52/6.36 [2019-03-28 22:53:01,906 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- 11.52/6.36 [2019-03-28 22:53:01,906 INFO L271 PluginConnector]: Initializing BlockEncodingV2... 11.52/6.36 [2019-03-28 22:53:01,908 INFO L276 PluginConnector]: BlockEncodingV2 initialized 11.52/6.36 [2019-03-28 22:53:01,909 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 10:53:01" (1/1) ... 11.52/6.36 [2019-03-28 22:53:01,924 INFO L313 BlockEncoder]: Initial Icfg 7 locations, 9 edges 11.52/6.36 [2019-03-28 22:53:01,926 INFO L258 BlockEncoder]: Using Remove infeasible edges 11.52/6.36 [2019-03-28 22:53:01,926 INFO L263 BlockEncoder]: Using Maximize final states 11.52/6.36 [2019-03-28 22:53:01,929 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false 11.52/6.36 [2019-03-28 22:53:01,929 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE 11.52/6.36 [2019-03-28 22:53:01,931 INFO L296 BlockEncoder]: Using Remove sink states 11.52/6.36 [2019-03-28 22:53:01,932 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true 11.52/6.36 [2019-03-28 22:53:01,932 INFO L179 BlockEncoder]: Using Rewrite not-equals 11.52/6.36 [2019-03-28 22:53:01,947 INFO L185 BlockEncoder]: Using Use SBE 11.52/6.36 [2019-03-28 22:53:01,954 INFO L200 BlockEncoder]: SBE split 0 edges 11.52/6.36 [2019-03-28 22:53:01,959 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility 11.52/6.36 [2019-03-28 22:53:01,960 INFO L71 MaximizeFinalStates]: 0 new accepting states 11.52/6.36 [2019-03-28 22:53:01,970 INFO L100 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding 11.52/6.36 [2019-03-28 22:53:01,972 INFO L70 RemoveSinkStates]: Removed 3 edges and 2 locations by removing sink states 11.52/6.36 [2019-03-28 22:53:01,973 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility 11.52/6.36 [2019-03-28 22:53:01,974 INFO L71 MaximizeFinalStates]: 0 new accepting states 11.52/6.36 [2019-03-28 22:53:01,978 INFO L100 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding 11.52/6.36 [2019-03-28 22:53:01,978 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states 11.52/6.36 [2019-03-28 22:53:01,979 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility 11.52/6.36 [2019-03-28 22:53:01,979 INFO L71 MaximizeFinalStates]: 0 new accepting states 11.52/6.36 [2019-03-28 22:53:01,979 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding 11.52/6.36 [2019-03-28 22:53:01,979 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states 11.52/6.36 [2019-03-28 22:53:01,980 INFO L313 BlockEncoder]: Encoded RCFG 2 locations, 2 edges 11.52/6.36 [2019-03-28 22:53:01,980 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 28.03 10:53:01 BasicIcfg 11.52/6.36 [2019-03-28 22:53:01,980 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- 11.52/6.36 [2019-03-28 22:53:01,981 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- 11.52/6.36 [2019-03-28 22:53:01,981 INFO L271 PluginConnector]: Initializing TraceAbstraction... 11.52/6.36 [2019-03-28 22:53:01,985 INFO L276 PluginConnector]: TraceAbstraction initialized 11.52/6.36 [2019-03-28 22:53:01,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.03 10:53:01" (1/4) ... 11.52/6.36 [2019-03-28 22:53:01,986 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66323129 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.03 10:53:01, skipping insertion in model container 11.52/6.36 [2019-03-28 22:53:01,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:53:01" (2/4) ... 11.52/6.36 [2019-03-28 22:53:01,986 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66323129 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.03 10:53:01, skipping insertion in model container 11.52/6.36 [2019-03-28 22:53:01,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 10:53:01" (3/4) ... 11.52/6.36 [2019-03-28 22:53:01,987 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66323129 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.03 10:53:01, skipping insertion in model container 11.52/6.36 [2019-03-28 22:53:01,987 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 28.03 10:53:01" (4/4) ... 11.52/6.36 [2019-03-28 22:53:01,989 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 11.52/6.36 [2019-03-28 22:53:01,998 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION 11.52/6.36 [2019-03-28 22:53:02,006 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. 11.52/6.36 [2019-03-28 22:53:02,024 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. 11.52/6.36 [2019-03-28 22:53:02,053 INFO L133 ementStrategyFactory]: Using default assertion order modulation 11.52/6.36 [2019-03-28 22:53:02,054 INFO L382 AbstractCegarLoop]: Interprodecural is true 11.52/6.36 [2019-03-28 22:53:02,054 INFO L383 AbstractCegarLoop]: Hoare is true 11.52/6.36 [2019-03-28 22:53:02,054 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates 11.52/6.36 [2019-03-28 22:53:02,054 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE 11.52/6.36 [2019-03-28 22:53:02,055 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION 11.52/6.36 [2019-03-28 22:53:02,055 INFO L387 AbstractCegarLoop]: Difference is false 11.52/6.36 [2019-03-28 22:53:02,055 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA 11.52/6.36 [2019-03-28 22:53:02,055 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== 11.52/6.36 [2019-03-28 22:53:02,069 INFO L276 IsEmpty]: Start isEmpty. Operand 2 states. 11.52/6.36 [2019-03-28 22:53:02,075 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. 11.52/6.36 [2019-03-28 22:53:02,078 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 2 states. 11.52/6.36 [2019-03-28 22:53:02,129 INFO L451 ceAbstractionStarter]: At program point L18-2(lines 18 20) the Hoare annotation is: true 11.52/6.36 [2019-03-28 22:53:02,129 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. 11.52/6.36 [2019-03-28 22:53:02,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.03 10:53:02 BasicIcfg 11.52/6.36 [2019-03-28 22:53:02,137 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- 11.52/6.36 [2019-03-28 22:53:02,138 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- 11.52/6.36 [2019-03-28 22:53:02,138 INFO L271 PluginConnector]: Initializing BuchiAutomizer... 11.52/6.36 [2019-03-28 22:53:02,141 INFO L276 PluginConnector]: BuchiAutomizer initialized 11.52/6.36 [2019-03-28 22:53:02,142 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 11.52/6.36 [2019-03-28 22:53:02,142 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.03 10:53:01" (1/5) ... 11.52/6.36 [2019-03-28 22:53:02,143 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@65e85529 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.03 10:53:02, skipping insertion in model container 11.52/6.36 [2019-03-28 22:53:02,143 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 11.52/6.36 [2019-03-28 22:53:02,143 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:53:01" (2/5) ... 11.52/6.36 [2019-03-28 22:53:02,144 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@65e85529 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.03 10:53:02, skipping insertion in model container 11.52/6.36 [2019-03-28 22:53:02,144 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 11.52/6.36 [2019-03-28 22:53:02,144 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 10:53:01" (3/5) ... 11.52/6.36 [2019-03-28 22:53:02,144 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@65e85529 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.03 10:53:02, skipping insertion in model container 11.52/6.36 [2019-03-28 22:53:02,144 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 11.52/6.36 [2019-03-28 22:53:02,145 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 28.03 10:53:01" (4/5) ... 11.52/6.36 [2019-03-28 22:53:02,145 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@65e85529 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.03 10:53:02, skipping insertion in model container 11.52/6.36 [2019-03-28 22:53:02,145 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 11.52/6.36 [2019-03-28 22:53:02,145 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.03 10:53:02" (5/5) ... 11.52/6.36 [2019-03-28 22:53:02,147 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 11.52/6.36 [2019-03-28 22:53:02,177 INFO L133 ementStrategyFactory]: Using default assertion order modulation 11.52/6.36 [2019-03-28 22:53:02,177 INFO L374 BuchiCegarLoop]: Interprodecural is true 11.52/6.36 [2019-03-28 22:53:02,177 INFO L375 BuchiCegarLoop]: Hoare is true 11.52/6.36 [2019-03-28 22:53:02,177 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates 11.52/6.36 [2019-03-28 22:53:02,177 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE 11.52/6.36 [2019-03-28 22:53:02,178 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION 11.52/6.36 [2019-03-28 22:53:02,178 INFO L379 BuchiCegarLoop]: Difference is false 11.52/6.36 [2019-03-28 22:53:02,178 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA 11.52/6.36 [2019-03-28 22:53:02,178 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== 11.52/6.36 [2019-03-28 22:53:02,181 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2 states. 11.52/6.36 [2019-03-28 22:53:02,199 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 11.52/6.36 [2019-03-28 22:53:02,199 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 11.52/6.36 [2019-03-28 22:53:02,199 INFO L119 BuchiIsEmpty]: Starting construction of run 11.52/6.36 [2019-03-28 22:53:02,205 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] 11.52/6.36 [2019-03-28 22:53:02,205 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] 11.52/6.36 [2019-03-28 22:53:02,205 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ 11.52/6.36 [2019-03-28 22:53:02,205 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2 states. 11.52/6.36 [2019-03-28 22:53:02,206 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 11.52/6.36 [2019-03-28 22:53:02,206 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 11.52/6.36 [2019-03-28 22:53:02,206 INFO L119 BuchiIsEmpty]: Starting construction of run 11.52/6.36 [2019-03-28 22:53:02,206 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] 11.52/6.36 [2019-03-28 22:53:02,206 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] 11.52/6.36 [2019-03-28 22:53:02,211 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [37] ULTIMATE.startENTRY-->L18-2: Formula: (< v_ULTIMATE.start_main_~y~0_9 1) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_6|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 4#L18-2true 11.52/6.36 [2019-03-28 22:53:02,212 INFO L796 eck$LassoCheckResult]: Loop: 4#L18-2true [27] L18-2-->L18-2: Formula: (and (<= 0 v_ULTIMATE.start_main_~x~0_8) (= v_ULTIMATE.start_main_~x~0_7 (+ (* (- 1) v_ULTIMATE.start_main_~y~0_8) v_ULTIMATE.start_main_~x~0_8))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 4#L18-2true 11.52/6.36 [2019-03-28 22:53:02,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 11.52/6.36 [2019-03-28 22:53:02,218 INFO L82 PathProgramCache]: Analyzing trace with hash 68, now seen corresponding path program 1 times 11.52/6.36 [2019-03-28 22:53:02,220 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 11.52/6.36 [2019-03-28 22:53:02,221 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 11.52/6.36 [2019-03-28 22:53:02,249 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 11.52/6.36 [2019-03-28 22:53:02,249 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 11.52/6.36 [2019-03-28 22:53:02,249 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 11.52/6.36 [2019-03-28 22:53:02,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 11.52/6.36 [2019-03-28 22:53:02,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 11.52/6.36 [2019-03-28 22:53:02,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 11.52/6.36 [2019-03-28 22:53:02,287 INFO L82 PathProgramCache]: Analyzing trace with hash 58, now seen corresponding path program 1 times 11.52/6.36 [2019-03-28 22:53:02,287 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 11.52/6.36 [2019-03-28 22:53:02,288 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 11.52/6.36 [2019-03-28 22:53:02,289 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 11.52/6.36 [2019-03-28 22:53:02,289 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 11.52/6.36 [2019-03-28 22:53:02,290 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 11.52/6.36 [2019-03-28 22:53:02,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 11.52/6.36 [2019-03-28 22:53:02,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 11.52/6.36 [2019-03-28 22:53:02,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 11.52/6.36 [2019-03-28 22:53:02,299 INFO L82 PathProgramCache]: Analyzing trace with hash 2135, now seen corresponding path program 1 times 11.52/6.36 [2019-03-28 22:53:02,299 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 11.52/6.36 [2019-03-28 22:53:02,300 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 11.52/6.36 [2019-03-28 22:53:02,301 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 11.52/6.36 [2019-03-28 22:53:02,301 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 11.52/6.36 [2019-03-28 22:53:02,302 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 11.52/6.36 [2019-03-28 22:53:02,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 11.52/6.36 [2019-03-28 22:53:02,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 11.52/6.36 [2019-03-28 22:53:02,379 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.03 10:53:02 BasicIcfg 11.52/6.36 [2019-03-28 22:53:02,379 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- 11.52/6.36 [2019-03-28 22:53:02,380 INFO L168 Benchmark]: Toolchain (without parser) took 1021.57 ms. Allocated memory was 649.6 MB in the beginning and 671.6 MB in the end (delta: 22.0 MB). Free memory was 562.8 MB in the beginning and 588.4 MB in the end (delta: -25.6 MB). There was no memory consumed. Max. memory is 50.3 GB. 11.52/6.36 [2019-03-28 22:53:02,382 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. 11.52/6.36 [2019-03-28 22:53:02,382 INFO L168 Benchmark]: CACSL2BoogieTranslator took 228.44 ms. Allocated memory is still 649.6 MB. Free memory was 562.8 MB in the beginning and 553.3 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 50.3 GB. 11.52/6.36 [2019-03-28 22:53:02,383 INFO L168 Benchmark]: Boogie Procedure Inliner took 96.56 ms. Allocated memory was 649.6 MB in the beginning and 671.6 MB in the end (delta: 22.0 MB). Free memory was 553.3 MB in the beginning and 638.2 MB in the end (delta: -84.9 MB). Peak memory consumption was 20.2 MB. Max. memory is 50.3 GB. 11.52/6.36 [2019-03-28 22:53:02,384 INFO L168 Benchmark]: Boogie Preprocessor took 20.46 ms. Allocated memory is still 671.6 MB. Free memory is still 636.9 MB. There was no memory consumed. Max. memory is 50.3 GB. 11.52/6.36 [2019-03-28 22:53:02,384 INFO L168 Benchmark]: RCFGBuilder took 198.84 ms. Allocated memory is still 671.6 MB. Free memory was 636.9 MB in the beginning and 622.2 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 50.3 GB. 11.52/6.36 [2019-03-28 22:53:02,385 INFO L168 Benchmark]: BlockEncodingV2 took 74.45 ms. Allocated memory is still 671.6 MB. Free memory was 622.2 MB in the beginning and 616.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. 11.52/6.36 [2019-03-28 22:53:02,385 INFO L168 Benchmark]: TraceAbstraction took 156.02 ms. Allocated memory is still 671.6 MB. Free memory was 616.8 MB in the beginning and 607.4 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 50.3 GB. 11.52/6.36 [2019-03-28 22:53:02,386 INFO L168 Benchmark]: BuchiAutomizer took 241.38 ms. Allocated memory is still 671.6 MB. Free memory was 607.4 MB in the beginning and 588.4 MB in the end (delta: 19.0 MB). Peak memory consumption was 19.0 MB. Max. memory is 50.3 GB. 11.52/6.36 [2019-03-28 22:53:02,391 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### 11.52/6.36 --- Results --- 11.52/6.36 * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: 11.52/6.36 - StatisticsResult: Initial Icfg 11.52/6.36 7 locations, 9 edges 11.52/6.36 - StatisticsResult: Encoded RCFG 11.52/6.36 2 locations, 2 edges 11.52/6.36 * Results from de.uni_freiburg.informatik.ultimate.core: 11.52/6.36 - StatisticsResult: Toolchain Benchmarks 11.52/6.36 Benchmark results are: 11.52/6.36 * 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. 11.52/6.36 * CACSL2BoogieTranslator took 228.44 ms. Allocated memory is still 649.6 MB. Free memory was 562.8 MB in the beginning and 553.3 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 50.3 GB. 11.52/6.36 * Boogie Procedure Inliner took 96.56 ms. Allocated memory was 649.6 MB in the beginning and 671.6 MB in the end (delta: 22.0 MB). Free memory was 553.3 MB in the beginning and 638.2 MB in the end (delta: -84.9 MB). Peak memory consumption was 20.2 MB. Max. memory is 50.3 GB. 11.52/6.36 * Boogie Preprocessor took 20.46 ms. Allocated memory is still 671.6 MB. Free memory is still 636.9 MB. There was no memory consumed. Max. memory is 50.3 GB. 11.52/6.36 * RCFGBuilder took 198.84 ms. Allocated memory is still 671.6 MB. Free memory was 636.9 MB in the beginning and 622.2 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 50.3 GB. 11.52/6.36 * BlockEncodingV2 took 74.45 ms. Allocated memory is still 671.6 MB. Free memory was 622.2 MB in the beginning and 616.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. 11.52/6.36 * TraceAbstraction took 156.02 ms. Allocated memory is still 671.6 MB. Free memory was 616.8 MB in the beginning and 607.4 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 50.3 GB. 11.52/6.36 * BuchiAutomizer took 241.38 ms. Allocated memory is still 671.6 MB. Free memory was 607.4 MB in the beginning and 588.4 MB in the end (delta: 19.0 MB). Peak memory consumption was 19.0 MB. Max. memory is 50.3 GB. 11.52/6.36 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: 11.52/6.36 - AllSpecificationsHoldResult: All specifications hold 11.52/6.36 We were not able to verify any specifiation because the program does not contain any specification. 11.52/6.36 - InvariantResult [Line: 18]: Loop Invariant 11.52/6.36 Derived loop invariant: 1 11.52/6.36 - StatisticsResult: Ultimate Automizer benchmark data 11.52/6.36 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 11.52/6.36 - StatisticsResult: Constructed decomposition of program 11.52/6.36 Trivial decomposition into one nonterminating module. 11.52/6.36 - StatisticsResult: Timing statistics 11.52/6.36 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 11.52/6.36 - TerminationAnalysisResult: Nontermination possible 11.52/6.36 Buchi Automizer proved that your program is nonterminating for some inputs 11.52/6.36 - FixpointNonTerminationResult [Line: 18]: Nontermination argument in form of an infinite program execution. 11.52/6.36 Nontermination argument in form of an infinite execution 11.52/6.36 State at position 0 is 11.52/6.36 {} 11.52/6.36 State at position 1 is 11.52/6.36 {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7f0d7ef8=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@248a8fa8=0, x=0, y=0} 11.52/6.36 - StatisticsResult: NonterminationArgumentStatistics 11.52/6.36 Fixpoint 11.52/6.36 - NonterminatingLassoResult [Line: 18]: Nonterminating execution 11.52/6.36 Found a nonterminating execution for the following lasso shaped sequence of statements. 11.52/6.36 Stem: 11.52/6.36 [L13] int x; 11.52/6.36 [L14] int y; 11.52/6.36 [L15] x = __VERIFIER_nondet_int() 11.52/6.36 [L16] y = __VERIFIER_nondet_int() 11.52/6.36 [L17] COND TRUE y < 1 11.52/6.36 Loop: 11.52/6.36 [L18] COND TRUE x >= 0 11.52/6.36 [L19] x = x - y 11.52/6.36 End of lasso representation. 11.52/6.36 RESULT: Ultimate proved your program to be incorrect! 11.52/6.36 !SESSION 2019-03-28 22:52:57.606 ----------------------------------------------- 11.52/6.36 eclipse.buildId=unknown 11.52/6.36 java.version=1.8.0_181 11.52/6.36 java.vendor=Oracle Corporation 11.52/6.36 BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US 11.52/6.36 Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox/benchmark/theBenchmark.c 11.52/6.36 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 11.52/6.36 11.52/6.36 !ENTRY org.eclipse.core.resources 2 10035 2019-03-28 22:53:02.628 11.52/6.36 !MESSAGE The workspace will exit with unsaved changes in this session. 11.52/6.36 Received shutdown request... 11.52/6.36 Ultimate: 11.52/6.36 GTK+ Version Check 11.52/6.36 EOF