12.77/6.31 NO 12.77/6.31 12.77/6.31 Ultimate: Cannot open display: 12.77/6.31 This is Ultimate 0.1.24-8dc7c08-m 12.77/6.31 [2019-03-28 12:06:14,189 INFO L170 SettingsManager]: Resetting all preferences to default values... 12.77/6.31 [2019-03-28 12:06:14,191 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values 12.77/6.31 [2019-03-28 12:06:14,202 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 12.77/6.31 [2019-03-28 12:06:14,203 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values 12.77/6.31 [2019-03-28 12:06:14,204 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values 12.77/6.31 [2019-03-28 12:06:14,205 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values 12.77/6.31 [2019-03-28 12:06:14,206 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values 12.77/6.31 [2019-03-28 12:06:14,208 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values 12.77/6.31 [2019-03-28 12:06:14,208 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values 12.77/6.31 [2019-03-28 12:06:14,209 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 12.77/6.31 [2019-03-28 12:06:14,210 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values 12.77/6.31 [2019-03-28 12:06:14,210 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values 12.77/6.31 [2019-03-28 12:06:14,211 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values 12.77/6.31 [2019-03-28 12:06:14,212 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values 12.77/6.31 [2019-03-28 12:06:14,213 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values 12.77/6.31 [2019-03-28 12:06:14,214 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values 12.77/6.31 [2019-03-28 12:06:14,216 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values 12.77/6.31 [2019-03-28 12:06:14,218 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values 12.77/6.31 [2019-03-28 12:06:14,219 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values 12.77/6.31 [2019-03-28 12:06:14,220 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values 12.77/6.31 [2019-03-28 12:06:14,221 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values 12.77/6.31 [2019-03-28 12:06:14,223 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 12.77/6.31 [2019-03-28 12:06:14,223 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... 12.77/6.31 [2019-03-28 12:06:14,224 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values 12.77/6.31 [2019-03-28 12:06:14,224 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values 12.77/6.31 [2019-03-28 12:06:14,225 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values 12.77/6.31 [2019-03-28 12:06:14,226 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... 12.77/6.31 [2019-03-28 12:06:14,226 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values 12.77/6.31 [2019-03-28 12:06:14,227 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values 12.77/6.31 [2019-03-28 12:06:14,227 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values 12.77/6.31 [2019-03-28 12:06:14,228 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values 12.77/6.31 [2019-03-28 12:06:14,229 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... 12.77/6.31 [2019-03-28 12:06:14,229 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values 12.77/6.31 [2019-03-28 12:06:14,230 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 12.77/6.31 [2019-03-28 12:06:14,230 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... 12.77/6.31 [2019-03-28 12:06:14,230 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values 12.77/6.31 [2019-03-28 12:06:14,231 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values 12.77/6.31 [2019-03-28 12:06:14,232 INFO L181 SettingsManager]: Finished resetting all preferences to default values... 12.77/6.31 [2019-03-28 12:06:14,232 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf 12.77/6.31 [2019-03-28 12:06:14,247 INFO L110 SettingsManager]: Loading preferences was successful 12.77/6.31 [2019-03-28 12:06:14,247 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: 12.77/6.31 [2019-03-28 12:06:14,248 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: 12.77/6.31 [2019-03-28 12:06:14,248 INFO L133 SettingsManager]: * Rewrite not-equals=true 12.77/6.31 [2019-03-28 12:06:14,248 INFO L133 SettingsManager]: * Create parallel compositions if possible=false 12.77/6.31 [2019-03-28 12:06:14,249 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE 12.77/6.31 [2019-03-28 12:06:14,249 INFO L133 SettingsManager]: * Use SBE=true 12.77/6.31 [2019-03-28 12:06:14,249 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: 12.77/6.31 [2019-03-28 12:06:14,249 INFO L133 SettingsManager]: * Use old map elimination=false 12.77/6.31 [2019-03-28 12:06:14,249 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false 12.77/6.31 [2019-03-28 12:06:14,250 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION 12.77/6.31 [2019-03-28 12:06:14,250 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true 12.77/6.31 [2019-03-28 12:06:14,250 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES 12.77/6.31 [2019-03-28 12:06:14,250 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true 12.77/6.31 [2019-03-28 12:06:14,250 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 12.77/6.31 [2019-03-28 12:06:14,251 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: 12.77/6.31 [2019-03-28 12:06:14,251 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false 12.77/6.31 [2019-03-28 12:06:14,251 INFO L133 SettingsManager]: * Check division by zero=IGNORE 12.77/6.31 [2019-03-28 12:06:14,251 INFO L133 SettingsManager]: * Check if freed pointer was valid=false 12.77/6.31 [2019-03-28 12:06:14,251 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false 12.77/6.31 [2019-03-28 12:06:14,252 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE 12.77/6.31 [2019-03-28 12:06:14,252 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: 12.77/6.31 [2019-03-28 12:06:14,252 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements 12.77/6.31 [2019-03-28 12:06:14,252 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump 12.77/6.31 [2019-03-28 12:06:14,252 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 12.77/6.31 [2019-03-28 12:06:14,253 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: 12.77/6.31 [2019-03-28 12:06:14,253 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles 12.77/6.31 [2019-03-28 12:06:14,253 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL 12.77/6.31 [2019-03-28 12:06:14,253 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 12.77/6.31 [2019-03-28 12:06:14,279 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp 12.77/6.31 [2019-03-28 12:06:14,293 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized 12.77/6.31 [2019-03-28 12:06:14,297 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. 12.77/6.31 [2019-03-28 12:06:14,298 INFO L271 PluginConnector]: Initializing CDTParser... 12.77/6.31 [2019-03-28 12:06:14,298 INFO L276 PluginConnector]: CDTParser initialized 12.77/6.31 [2019-03-28 12:06:14,299 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c 12.77/6.31 [2019-03-28 12:06:14,363 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/3d749bede4134ec7b3a1600c2da272df/FLAG4a4ae416f 12.77/6.31 [2019-03-28 12:06:14,708 INFO L307 CDTParser]: Found 1 translation units. 12.77/6.31 [2019-03-28 12:06:14,708 INFO L161 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c 12.77/6.31 [2019-03-28 12:06:14,715 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/3d749bede4134ec7b3a1600c2da272df/FLAG4a4ae416f 12.77/6.31 [2019-03-28 12:06:15,116 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/3d749bede4134ec7b3a1600c2da272df 12.77/6.31 [2019-03-28 12:06:15,127 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### 12.77/6.31 [2019-03-28 12:06:15,129 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. 12.77/6.31 [2019-03-28 12:06:15,130 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- 12.77/6.31 [2019-03-28 12:06:15,130 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... 12.77/6.31 [2019-03-28 12:06:15,134 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized 12.77/6.31 [2019-03-28 12:06:15,135 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.03 12:06:15" (1/1) ... 12.77/6.31 [2019-03-28 12:06:15,138 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a51e549 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:06:15, skipping insertion in model container 12.77/6.31 [2019-03-28 12:06:15,138 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.03 12:06:15" (1/1) ... 12.77/6.31 [2019-03-28 12:06:15,147 INFO L145 MainTranslator]: Starting translation in SV-COMP mode 12.77/6.31 [2019-03-28 12:06:15,164 INFO L176 MainTranslator]: Built tables and reachable declarations 12.77/6.31 [2019-03-28 12:06:15,323 INFO L206 PostProcessor]: Analyzing one entry point: main 12.77/6.31 [2019-03-28 12:06:15,327 INFO L191 MainTranslator]: Completed pre-run 12.77/6.31 [2019-03-28 12:06:15,344 INFO L206 PostProcessor]: Analyzing one entry point: main 12.77/6.31 [2019-03-28 12:06:15,419 INFO L195 MainTranslator]: Completed translation 12.77/6.31 [2019-03-28 12:06:15,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:06:15 WrapperNode 12.77/6.31 [2019-03-28 12:06:15,420 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- 12.77/6.31 [2019-03-28 12:06:15,421 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- 12.77/6.31 [2019-03-28 12:06:15,421 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... 12.77/6.31 [2019-03-28 12:06:15,421 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized 12.77/6.31 [2019-03-28 12:06:15,431 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:06:15" (1/1) ... 12.77/6.31 [2019-03-28 12:06:15,437 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:06:15" (1/1) ... 12.77/6.31 [2019-03-28 12:06:15,455 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- 12.77/6.31 [2019-03-28 12:06:15,456 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- 12.77/6.31 [2019-03-28 12:06:15,456 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... 12.77/6.31 [2019-03-28 12:06:15,456 INFO L276 PluginConnector]: Boogie Preprocessor initialized 12.77/6.31 [2019-03-28 12:06:15,465 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:06:15" (1/1) ... 12.77/6.31 [2019-03-28 12:06:15,466 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:06:15" (1/1) ... 12.77/6.31 [2019-03-28 12:06:15,466 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:06:15" (1/1) ... 12.77/6.31 [2019-03-28 12:06:15,466 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:06:15" (1/1) ... 12.77/6.31 [2019-03-28 12:06:15,468 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:06:15" (1/1) ... 12.77/6.31 [2019-03-28 12:06:15,470 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:06:15" (1/1) ... 12.77/6.31 [2019-03-28 12:06:15,471 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:06:15" (1/1) ... 12.77/6.31 [2019-03-28 12:06:15,472 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- 12.77/6.31 [2019-03-28 12:06:15,473 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- 12.77/6.31 [2019-03-28 12:06:15,473 INFO L271 PluginConnector]: Initializing RCFGBuilder... 12.77/6.31 [2019-03-28 12:06:15,473 INFO L276 PluginConnector]: RCFGBuilder initialized 12.77/6.31 [2019-03-28 12:06:15,474 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:06:15" (1/1) ... 12.77/6.31 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 12.77/6.31 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) 12.77/6.31 Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 12.77/6.31 [2019-03-28 12:06:15,535 INFO L130 BoogieDeclarations]: Found specification of procedure rec1 12.77/6.31 [2019-03-28 12:06:15,535 INFO L138 BoogieDeclarations]: Found implementation of procedure rec1 12.77/6.31 [2019-03-28 12:06:15,535 INFO L130 BoogieDeclarations]: Found specification of procedure rec2 12.77/6.31 [2019-03-28 12:06:15,535 INFO L138 BoogieDeclarations]: Found implementation of procedure rec2 12.77/6.31 [2019-03-28 12:06:15,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start 12.77/6.31 [2019-03-28 12:06:15,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start 12.77/6.31 [2019-03-28 12:06:15,680 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) 12.77/6.31 [2019-03-28 12:06:15,680 INFO L286 CfgBuilder]: Removed 4 assue(true) statements. 12.77/6.31 [2019-03-28 12:06:15,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 12:06:15 BoogieIcfgContainer 12.77/6.31 [2019-03-28 12:06:15,682 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- 12.77/6.31 [2019-03-28 12:06:15,683 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- 12.77/6.31 [2019-03-28 12:06:15,683 INFO L271 PluginConnector]: Initializing BlockEncodingV2... 12.77/6.31 [2019-03-28 12:06:15,685 INFO L276 PluginConnector]: BlockEncodingV2 initialized 12.77/6.31 [2019-03-28 12:06:15,686 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 12:06:15" (1/1) ... 12.77/6.31 [2019-03-28 12:06:15,705 INFO L313 BlockEncoder]: Initial Icfg 21 locations, 26 edges 12.77/6.31 [2019-03-28 12:06:15,707 INFO L258 BlockEncoder]: Using Remove infeasible edges 12.77/6.31 [2019-03-28 12:06:15,708 INFO L263 BlockEncoder]: Using Maximize final states 12.77/6.31 [2019-03-28 12:06:15,708 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false 12.77/6.31 [2019-03-28 12:06:15,709 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE 12.77/6.31 [2019-03-28 12:06:15,711 INFO L296 BlockEncoder]: Using Remove sink states 12.77/6.31 [2019-03-28 12:06:15,711 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true 12.77/6.31 [2019-03-28 12:06:15,712 INFO L179 BlockEncoder]: Using Rewrite not-equals 12.77/6.31 [2019-03-28 12:06:15,726 INFO L185 BlockEncoder]: Using Use SBE 12.77/6.31 [2019-03-28 12:06:15,734 INFO L200 BlockEncoder]: SBE split 0 edges 12.77/6.31 [2019-03-28 12:06:15,739 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility 12.77/6.31 [2019-03-28 12:06:15,740 INFO L71 MaximizeFinalStates]: 0 new accepting states 12.77/6.31 [2019-03-28 12:06:15,750 INFO L100 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding 12.77/6.31 [2019-03-28 12:06:15,753 INFO L70 RemoveSinkStates]: Removed 2 edges and 2 locations by removing sink states 12.77/6.31 [2019-03-28 12:06:15,755 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility 12.77/6.31 [2019-03-28 12:06:15,755 INFO L71 MaximizeFinalStates]: 0 new accepting states 12.77/6.31 [2019-03-28 12:06:15,755 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding 12.77/6.31 [2019-03-28 12:06:15,756 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states 12.77/6.31 [2019-03-28 12:06:15,756 INFO L313 BlockEncoder]: Encoded RCFG 17 locations, 22 edges 12.77/6.31 [2019-03-28 12:06:15,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 28.03 12:06:15 BasicIcfg 12.77/6.31 [2019-03-28 12:06:15,757 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- 12.77/6.31 [2019-03-28 12:06:15,758 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- 12.77/6.31 [2019-03-28 12:06:15,758 INFO L271 PluginConnector]: Initializing TraceAbstraction... 12.77/6.31 [2019-03-28 12:06:15,762 INFO L276 PluginConnector]: TraceAbstraction initialized 12.77/6.31 [2019-03-28 12:06:15,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.03 12:06:15" (1/4) ... 12.77/6.31 [2019-03-28 12:06:15,763 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7124375f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.03 12:06:15, skipping insertion in model container 12.77/6.31 [2019-03-28 12:06:15,763 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:06:15" (2/4) ... 12.77/6.31 [2019-03-28 12:06:15,764 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7124375f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.03 12:06:15, skipping insertion in model container 12.77/6.31 [2019-03-28 12:06:15,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 12:06:15" (3/4) ... 12.77/6.31 [2019-03-28 12:06:15,764 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7124375f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.03 12:06:15, skipping insertion in model container 12.77/6.31 [2019-03-28 12:06:15,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 28.03 12:06:15" (4/4) ... 12.77/6.31 [2019-03-28 12:06:15,766 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 12.77/6.31 [2019-03-28 12:06:15,776 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION 12.77/6.31 [2019-03-28 12:06:15,783 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. 12.77/6.31 [2019-03-28 12:06:15,801 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. 12.77/6.31 [2019-03-28 12:06:15,835 INFO L133 ementStrategyFactory]: Using default assertion order modulation 12.77/6.31 [2019-03-28 12:06:15,836 INFO L382 AbstractCegarLoop]: Interprodecural is true 12.77/6.31 [2019-03-28 12:06:15,836 INFO L383 AbstractCegarLoop]: Hoare is true 12.77/6.31 [2019-03-28 12:06:15,836 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates 12.77/6.31 [2019-03-28 12:06:15,836 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE 12.77/6.31 [2019-03-28 12:06:15,836 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION 12.77/6.31 [2019-03-28 12:06:15,837 INFO L387 AbstractCegarLoop]: Difference is false 12.77/6.31 [2019-03-28 12:06:15,837 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA 12.77/6.31 [2019-03-28 12:06:15,837 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== 12.77/6.31 [2019-03-28 12:06:15,857 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. 12.77/6.31 [2019-03-28 12:06:15,864 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. 12.77/6.31 [2019-03-28 12:06:15,871 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 17 states. 12.77/6.31 [2019-03-28 12:06:15,939 INFO L451 ceAbstractionStarter]: At program point L14(line 14) the Hoare annotation is: true 12.77/6.31 [2019-03-28 12:06:15,940 INFO L451 ceAbstractionStarter]: At program point rec1ENTRY(lines 11 15) the Hoare annotation is: true 12.77/6.31 [2019-03-28 12:06:15,940 INFO L448 ceAbstractionStarter]: For program point rec1FINAL(lines 11 15) no Hoare annotation was computed. 12.77/6.31 [2019-03-28 12:06:15,940 INFO L451 ceAbstractionStarter]: At program point L14-1(line 14) the Hoare annotation is: true 12.77/6.31 [2019-03-28 12:06:15,940 INFO L448 ceAbstractionStarter]: For program point L12(lines 12 13) no Hoare annotation was computed. 12.77/6.31 [2019-03-28 12:06:15,940 INFO L451 ceAbstractionStarter]: At program point L14-2(line 14) the Hoare annotation is: true 12.77/6.31 [2019-03-28 12:06:15,941 INFO L448 ceAbstractionStarter]: For program point L14-3(line 14) no Hoare annotation was computed. 12.77/6.31 [2019-03-28 12:06:15,941 INFO L448 ceAbstractionStarter]: For program point rec1EXIT(lines 11 15) no Hoare annotation was computed. 12.77/6.31 [2019-03-28 12:06:15,941 INFO L451 ceAbstractionStarter]: At program point rec2ENTRY(lines 17 21) the Hoare annotation is: true 12.77/6.31 [2019-03-28 12:06:15,942 INFO L448 ceAbstractionStarter]: For program point rec2FINAL(lines 17 21) no Hoare annotation was computed. 12.77/6.31 [2019-03-28 12:06:15,942 INFO L448 ceAbstractionStarter]: For program point rec2EXIT(lines 17 21) no Hoare annotation was computed. 12.77/6.31 [2019-03-28 12:06:15,942 INFO L451 ceAbstractionStarter]: At program point L20(line 20) the Hoare annotation is: true 12.77/6.31 [2019-03-28 12:06:15,942 INFO L451 ceAbstractionStarter]: At program point L20-1(line 20) the Hoare annotation is: true 12.77/6.31 [2019-03-28 12:06:15,942 INFO L448 ceAbstractionStarter]: For program point L18(lines 18 19) no Hoare annotation was computed. 12.77/6.31 [2019-03-28 12:06:15,942 INFO L448 ceAbstractionStarter]: For program point L20-2(line 20) no Hoare annotation was computed. 12.77/6.31 [2019-03-28 12:06:15,943 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. 12.77/6.31 [2019-03-28 12:06:15,943 INFO L451 ceAbstractionStarter]: At program point L25(line 25) the Hoare annotation is: true 12.77/6.31 [2019-03-28 12:06:15,946 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.03 12:06:15 BasicIcfg 12.77/6.31 [2019-03-28 12:06:15,947 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- 12.77/6.31 [2019-03-28 12:06:15,947 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- 12.77/6.31 [2019-03-28 12:06:15,948 INFO L271 PluginConnector]: Initializing BuchiAutomizer... 12.77/6.31 [2019-03-28 12:06:15,951 INFO L276 PluginConnector]: BuchiAutomizer initialized 12.77/6.31 [2019-03-28 12:06:15,952 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 12.77/6.31 [2019-03-28 12:06:15,952 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.03 12:06:15" (1/5) ... 12.77/6.31 [2019-03-28 12:06:15,953 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@13b8ac27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.03 12:06:15, skipping insertion in model container 12.77/6.31 [2019-03-28 12:06:15,953 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 12.77/6.31 [2019-03-28 12:06:15,953 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:06:15" (2/5) ... 12.77/6.31 [2019-03-28 12:06:15,954 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@13b8ac27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.03 12:06:15, skipping insertion in model container 12.77/6.31 [2019-03-28 12:06:15,957 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 12.77/6.31 [2019-03-28 12:06:15,957 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 12:06:15" (3/5) ... 12.77/6.31 [2019-03-28 12:06:15,957 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@13b8ac27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.03 12:06:15, skipping insertion in model container 12.77/6.31 [2019-03-28 12:06:15,957 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 12.77/6.31 [2019-03-28 12:06:15,958 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 28.03 12:06:15" (4/5) ... 12.77/6.31 [2019-03-28 12:06:15,958 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@13b8ac27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.03 12:06:15, skipping insertion in model container 12.77/6.31 [2019-03-28 12:06:15,958 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 12.77/6.31 [2019-03-28 12:06:15,958 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.03 12:06:15" (5/5) ... 12.77/6.31 [2019-03-28 12:06:15,960 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 12.77/6.31 [2019-03-28 12:06:15,988 INFO L133 ementStrategyFactory]: Using default assertion order modulation 12.77/6.31 [2019-03-28 12:06:15,988 INFO L374 BuchiCegarLoop]: Interprodecural is true 12.77/6.31 [2019-03-28 12:06:15,988 INFO L375 BuchiCegarLoop]: Hoare is true 12.77/6.31 [2019-03-28 12:06:15,988 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates 12.77/6.31 [2019-03-28 12:06:15,988 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE 12.77/6.31 [2019-03-28 12:06:15,989 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION 12.77/6.31 [2019-03-28 12:06:15,989 INFO L379 BuchiCegarLoop]: Difference is false 12.77/6.31 [2019-03-28 12:06:15,989 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA 12.77/6.31 [2019-03-28 12:06:15,989 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== 12.77/6.31 [2019-03-28 12:06:15,993 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states. 12.77/6.31 [2019-03-28 12:06:16,015 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 9 12.77/6.31 [2019-03-28 12:06:16,015 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 12.77/6.31 [2019-03-28 12:06:16,015 INFO L119 BuchiIsEmpty]: Starting construction of run 12.77/6.31 [2019-03-28 12:06:16,023 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] 12.77/6.31 [2019-03-28 12:06:16,023 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] 12.77/6.31 [2019-03-28 12:06:16,023 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ 12.77/6.31 [2019-03-28 12:06:16,024 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states. 12.77/6.31 [2019-03-28 12:06:16,026 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 9 12.77/6.31 [2019-03-28 12:06:16,026 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 12.77/6.31 [2019-03-28 12:06:16,026 INFO L119 BuchiIsEmpty]: Starting construction of run 12.77/6.31 [2019-03-28 12:06:16,027 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] 12.77/6.31 [2019-03-28 12:06:16,027 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] 12.77/6.31 [2019-03-28 12:06:16,032 INFO L794 eck$LassoCheckResult]: Stem: 13#ULTIMATE.startENTRYtrue [47] ULTIMATE.startENTRY-->L25: Formula: (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet5_4|) InVars {} OutVars{ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_1|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#t~ret6=|v_ULTIMATE.start_main_#t~ret6_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[|v_ULTIMATE.start_main_#t~nondet5_4|] AssignedVars[ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#res, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_#t~ret6] 18#L25true [56] L25-->rec2ENTRY: Formula: (= |v_rec2_#in~jInParam_2| v_ULTIMATE.start_main_~x~0_5) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} OutVars{rec2_#in~j=|v_rec2_#in~jInParam_2|} AuxVars[] AssignedVars[rec2_#in~j]< 3#rec2ENTRYtrue 12.77/6.31 [2019-03-28 12:06:16,033 INFO L796 eck$LassoCheckResult]: Loop: 3#rec2ENTRYtrue [38] rec2ENTRY-->L18: Formula: (= v_rec2_~j_1 |v_rec2_#in~j_1|) InVars {rec2_#in~j=|v_rec2_#in~j_1|} OutVars{rec2_~j=v_rec2_~j_1, rec2_#in~j=|v_rec2_#in~j_1|} AuxVars[] AssignedVars[rec2_~j] 16#L18true [64] L18-->L20: Formula: (> v_rec2_~j_3 0) InVars {rec2_~j=v_rec2_~j_3} OutVars{rec2_~j=v_rec2_~j_3} AuxVars[] AssignedVars[] 15#L20true [50] L20-->rec1ENTRY: Formula: (= |v_rec1_#in~iInParam_4| (+ v_rec2_~j_5 1)) InVars {rec2_~j=v_rec2_~j_5} OutVars{rec1_#in~i=|v_rec1_#in~iInParam_4|} AuxVars[] AssignedVars[rec1_#in~i]< 4#rec1ENTRYtrue [39] rec1ENTRY-->L12: Formula: (= v_rec1_~i_1 |v_rec1_#in~i_1|) InVars {rec1_#in~i=|v_rec1_#in~i_1|} OutVars{rec1_#in~i=|v_rec1_#in~i_1|, rec1_~i=v_rec1_~i_1} AuxVars[] AssignedVars[rec1_~i] 9#L12true [44] L12-->rec1FINAL: Formula: (and (<= v_rec1_~i_2 0) (= |v_rec1_#res_1| 0)) InVars {rec1_~i=v_rec1_~i_2} OutVars{rec1_#res=|v_rec1_#res_1|, rec1_~i=v_rec1_~i_2} AuxVars[] AssignedVars[rec1_#res] 5#rec1FINALtrue [40] rec1FINAL-->rec1EXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 12#rec1EXITtrue >[62] rec1EXIT-->L20-1: AOR: Formula: (= |v_rec2_#t~ret3_4| |v_rec1_#resOutParam_4|) InVars {rec1_#res=|v_rec1_#resOutParam_4|} OutVars{rec2_#t~ret3=|v_rec2_#t~ret3_4|} AuxVars[] AssignedVars[rec2_#t~ret3] LVA: Formula: (= |v_rec1_#in~iInParam_4| (+ v_rec2_~j_5 1)) InVars {rec2_~j=v_rec2_~j_5} OutVars{rec1_#in~i=|v_rec1_#in~iInParam_4|} AuxVars[] AssignedVars[rec1_#in~i] 19#L20-1true [57] L20-1-->rec2ENTRY: Formula: (= |v_rec2_#in~jInParam_1| |v_rec2_#t~ret3_5|) InVars {rec2_#t~ret3=|v_rec2_#t~ret3_5|} OutVars{rec2_#in~j=|v_rec2_#in~jInParam_1|} AuxVars[] AssignedVars[rec2_#in~j]< 3#rec2ENTRYtrue 12.77/6.31 [2019-03-28 12:06:16,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 12.77/6.31 [2019-03-28 12:06:16,040 INFO L82 PathProgramCache]: Analyzing trace with hash 2474, now seen corresponding path program 1 times 12.77/6.31 [2019-03-28 12:06:16,042 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 12.77/6.31 [2019-03-28 12:06:16,043 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 12.77/6.31 [2019-03-28 12:06:16,063 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 12.77/6.31 [2019-03-28 12:06:16,063 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 12.77/6.31 [2019-03-28 12:06:16,064 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 12.77/6.31 [2019-03-28 12:06:16,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 12.77/6.31 [2019-03-28 12:06:16,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 12.77/6.31 [2019-03-28 12:06:16,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 12.77/6.31 [2019-03-28 12:06:16,106 INFO L82 PathProgramCache]: Analyzing trace with hash -1865651641, now seen corresponding path program 1 times 12.77/6.31 [2019-03-28 12:06:16,106 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 12.77/6.31 [2019-03-28 12:06:16,106 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 12.77/6.31 [2019-03-28 12:06:16,107 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 12.77/6.31 [2019-03-28 12:06:16,108 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 12.77/6.31 [2019-03-28 12:06:16,108 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 12.77/6.31 [2019-03-28 12:06:16,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 12.77/6.31 [2019-03-28 12:06:16,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. 12.77/6.31 [2019-03-28 12:06:16,184 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. 12.77/6.31 [2019-03-28 12:06:16,185 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 12.77/6.31 [2019-03-28 12:06:16,188 INFO L811 eck$LassoCheckResult]: loop already infeasible 12.77/6.31 [2019-03-28 12:06:16,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. 12.77/6.31 [2019-03-28 12:06:16,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 12.77/6.31 [2019-03-28 12:06:16,206 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 5 states. 12.77/6.31 [2019-03-28 12:06:16,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. 12.77/6.31 [2019-03-28 12:06:16,295 INFO L93 Difference]: Finished difference Result 21 states and 28 transitions. 12.77/6.31 [2019-03-28 12:06:16,296 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 12.77/6.31 [2019-03-28 12:06:16,299 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 28 transitions. 12.77/6.31 [2019-03-28 12:06:16,303 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 9 12.77/6.31 [2019-03-28 12:06:16,310 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 16 states and 22 transitions. 12.77/6.31 [2019-03-28 12:06:16,311 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 12.77/6.31 [2019-03-28 12:06:16,312 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 12.77/6.31 [2019-03-28 12:06:16,312 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 22 transitions. 12.77/6.31 [2019-03-28 12:06:16,314 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. 12.77/6.31 [2019-03-28 12:06:16,314 INFO L706 BuchiCegarLoop]: Abstraction has 16 states and 22 transitions. 12.77/6.31 [2019-03-28 12:06:16,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 22 transitions. 12.77/6.31 [2019-03-28 12:06:16,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. 12.77/6.31 [2019-03-28 12:06:16,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. 12.77/6.31 [2019-03-28 12:06:16,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 22 transitions. 12.77/6.31 [2019-03-28 12:06:16,348 INFO L729 BuchiCegarLoop]: Abstraction has 16 states and 22 transitions. 12.77/6.31 [2019-03-28 12:06:16,348 INFO L609 BuchiCegarLoop]: Abstraction has 16 states and 22 transitions. 12.77/6.31 [2019-03-28 12:06:16,348 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ 12.77/6.31 [2019-03-28 12:06:16,348 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 22 transitions. 12.77/6.31 [2019-03-28 12:06:16,350 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 9 12.77/6.31 [2019-03-28 12:06:16,350 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 12.77/6.31 [2019-03-28 12:06:16,350 INFO L119 BuchiIsEmpty]: Starting construction of run 12.77/6.31 [2019-03-28 12:06:16,351 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] 12.77/6.31 [2019-03-28 12:06:16,351 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] 12.77/6.31 [2019-03-28 12:06:16,352 INFO L794 eck$LassoCheckResult]: Stem: 65#ULTIMATE.startENTRY [47] ULTIMATE.startENTRY-->L25: Formula: (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet5_4|) InVars {} OutVars{ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_1|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#t~ret6=|v_ULTIMATE.start_main_#t~ret6_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[|v_ULTIMATE.start_main_#t~nondet5_4|] AssignedVars[ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#res, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_#t~ret6] 52#L25 [56] L25-->rec2ENTRY: Formula: (= |v_rec2_#in~jInParam_2| v_ULTIMATE.start_main_~x~0_5) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} OutVars{rec2_#in~j=|v_rec2_#in~jInParam_2|} AuxVars[] AssignedVars[rec2_#in~j]< 51#rec2ENTRY 12.77/6.31 [2019-03-28 12:06:16,353 INFO L796 eck$LassoCheckResult]: Loop: 51#rec2ENTRY [38] rec2ENTRY-->L18: Formula: (= v_rec2_~j_1 |v_rec2_#in~j_1|) InVars {rec2_#in~j=|v_rec2_#in~j_1|} OutVars{rec2_~j=v_rec2_~j_1, rec2_#in~j=|v_rec2_#in~j_1|} AuxVars[] AssignedVars[rec2_~j] 54#L18 [64] L18-->L20: Formula: (> v_rec2_~j_3 0) InVars {rec2_~j=v_rec2_~j_3} OutVars{rec2_~j=v_rec2_~j_3} AuxVars[] AssignedVars[] 56#L20 [50] L20-->rec1ENTRY: Formula: (= |v_rec1_#in~iInParam_4| (+ v_rec2_~j_5 1)) InVars {rec2_~j=v_rec2_~j_5} OutVars{rec1_#in~i=|v_rec1_#in~iInParam_4|} AuxVars[] AssignedVars[rec1_#in~i]< 55#rec1ENTRY [39] rec1ENTRY-->L12: Formula: (= v_rec1_~i_1 |v_rec1_#in~i_1|) InVars {rec1_#in~i=|v_rec1_#in~i_1|} OutVars{rec1_#in~i=|v_rec1_#in~i_1|, rec1_~i=v_rec1_~i_1} AuxVars[] AssignedVars[rec1_~i] 60#L12 [65] L12-->L14: Formula: (> v_rec1_~i_3 0) InVars {rec1_~i=v_rec1_~i_3} OutVars{rec1_~i=v_rec1_~i_3} AuxVars[] AssignedVars[] 57#L14 [48] L14-->rec1ENTRY: Formula: (= |v_rec1_#in~iInParam_1| (+ v_rec1_~i_5 (- 2))) InVars {rec1_~i=v_rec1_~i_5} OutVars{rec1_#in~i=|v_rec1_#in~iInParam_1|} AuxVars[] AssignedVars[rec1_#in~i]< 55#rec1ENTRY [39] rec1ENTRY-->L12: Formula: (= v_rec1_~i_1 |v_rec1_#in~i_1|) InVars {rec1_#in~i=|v_rec1_#in~i_1|} OutVars{rec1_#in~i=|v_rec1_#in~i_1|, rec1_~i=v_rec1_~i_1} AuxVars[] AssignedVars[rec1_~i] 60#L12 [44] L12-->rec1FINAL: Formula: (and (<= v_rec1_~i_2 0) (= |v_rec1_#res_1| 0)) InVars {rec1_~i=v_rec1_~i_2} OutVars{rec1_#res=|v_rec1_#res_1|, rec1_~i=v_rec1_~i_2} AuxVars[] AssignedVars[rec1_#res] 61#rec1FINAL [40] rec1FINAL-->rec1EXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 62#rec1EXIT >[59] rec1EXIT-->L14-1: AOR: Formula: (= |v_rec1_#t~ret0_4| |v_rec1_#resOutParam_1|) InVars {rec1_#res=|v_rec1_#resOutParam_1|} OutVars{rec1_#t~ret0=|v_rec1_#t~ret0_4|} AuxVars[] AssignedVars[rec1_#t~ret0] LVA: Formula: (= |v_rec1_#in~iInParam_1| (+ v_rec1_~i_5 (- 2))) InVars {rec1_~i=v_rec1_~i_5} OutVars{rec1_#in~i=|v_rec1_#in~iInParam_1|} AuxVars[] AssignedVars[rec1_#in~i] 58#L14-1 [42] L14-1-->rec1ENTRY: Formula: (= |v_rec1_#in~iInParam_2| (+ |v_rec1_#t~ret0_5| (- 1))) InVars {rec1_#t~ret0=|v_rec1_#t~ret0_5|} OutVars{rec1_#in~i=|v_rec1_#in~iInParam_2|} AuxVars[] AssignedVars[rec1_#in~i]< 55#rec1ENTRY [39] rec1ENTRY-->L12: Formula: (= v_rec1_~i_1 |v_rec1_#in~i_1|) InVars {rec1_#in~i=|v_rec1_#in~i_1|} OutVars{rec1_#in~i=|v_rec1_#in~i_1|, rec1_~i=v_rec1_~i_1} AuxVars[] AssignedVars[rec1_~i] 60#L12 [44] L12-->rec1FINAL: Formula: (and (<= v_rec1_~i_2 0) (= |v_rec1_#res_1| 0)) InVars {rec1_~i=v_rec1_~i_2} OutVars{rec1_#res=|v_rec1_#res_1|, rec1_~i=v_rec1_~i_2} AuxVars[] AssignedVars[rec1_#res] 61#rec1FINAL [40] rec1FINAL-->rec1EXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 62#rec1EXIT >[58] rec1EXIT-->L14-2: AOR: Formula: (= |v_rec1_#t~ret1_4| |v_rec1_#resOutParam_2|) InVars {rec1_#res=|v_rec1_#resOutParam_2|} OutVars{rec1_#t~ret1=|v_rec1_#t~ret1_4|} AuxVars[] AssignedVars[rec1_#t~ret1] LVA: Formula: (= |v_rec1_#in~iInParam_2| (+ |v_rec1_#t~ret0_5| (- 1))) InVars {rec1_#t~ret0=|v_rec1_#t~ret0_5|} OutVars{rec1_#in~i=|v_rec1_#in~iInParam_2|} AuxVars[] AssignedVars[rec1_#in~i] 59#L14-2 [46] L14-2-->rec1ENTRY: Formula: (= |v_rec1_#in~iInParam_3| |v_rec1_#t~ret1_5|) InVars {rec1_#t~ret1=|v_rec1_#t~ret1_5|} OutVars{rec1_#in~i=|v_rec1_#in~iInParam_3|} AuxVars[] AssignedVars[rec1_#in~i]< 55#rec1ENTRY [39] rec1ENTRY-->L12: Formula: (= v_rec1_~i_1 |v_rec1_#in~i_1|) InVars {rec1_#in~i=|v_rec1_#in~i_1|} OutVars{rec1_#in~i=|v_rec1_#in~i_1|, rec1_~i=v_rec1_~i_1} AuxVars[] AssignedVars[rec1_~i] 60#L12 [44] L12-->rec1FINAL: Formula: (and (<= v_rec1_~i_2 0) (= |v_rec1_#res_1| 0)) InVars {rec1_~i=v_rec1_~i_2} OutVars{rec1_#res=|v_rec1_#res_1|, rec1_~i=v_rec1_~i_2} AuxVars[] AssignedVars[rec1_#res] 61#rec1FINAL [40] rec1FINAL-->rec1EXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 62#rec1EXIT >[63] rec1EXIT-->L14-3: AOR: Formula: (= |v_rec1_#t~ret2_4| |v_rec1_#resOutParam_3|) InVars {rec1_#res=|v_rec1_#resOutParam_3|} OutVars{rec1_#t~ret2=|v_rec1_#t~ret2_4|} AuxVars[] AssignedVars[rec1_#t~ret2] LVA: Formula: (= |v_rec1_#in~iInParam_3| |v_rec1_#t~ret1_5|) InVars {rec1_#t~ret1=|v_rec1_#t~ret1_5|} OutVars{rec1_#in~i=|v_rec1_#in~iInParam_3|} AuxVars[] AssignedVars[rec1_#in~i] 63#L14-3 [43] L14-3-->rec1FINAL: Formula: (= |v_rec1_#res_2| (+ |v_rec1_#t~ret2_3| 1)) InVars {rec1_#t~ret2=|v_rec1_#t~ret2_3|} OutVars{rec1_#t~ret1=|v_rec1_#t~ret1_3|, rec1_#t~ret2=|v_rec1_#t~ret2_2|, rec1_#res=|v_rec1_#res_2|, rec1_#t~ret0=|v_rec1_#t~ret0_3|} AuxVars[] AssignedVars[rec1_#t~ret1, rec1_#t~ret2, rec1_#res, rec1_#t~ret0] 64#rec1FINAL [40] rec1FINAL-->rec1EXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 66#rec1EXIT >[62] rec1EXIT-->L20-1: AOR: Formula: (= |v_rec2_#t~ret3_4| |v_rec1_#resOutParam_4|) InVars {rec1_#res=|v_rec1_#resOutParam_4|} OutVars{rec2_#t~ret3=|v_rec2_#t~ret3_4|} AuxVars[] AssignedVars[rec2_#t~ret3] LVA: Formula: (= |v_rec1_#in~iInParam_4| (+ v_rec2_~j_5 1)) InVars {rec2_~j=v_rec2_~j_5} OutVars{rec1_#in~i=|v_rec1_#in~iInParam_4|} AuxVars[] AssignedVars[rec1_#in~i] 53#L20-1 [57] L20-1-->rec2ENTRY: Formula: (= |v_rec2_#in~jInParam_1| |v_rec2_#t~ret3_5|) InVars {rec2_#t~ret3=|v_rec2_#t~ret3_5|} OutVars{rec2_#in~j=|v_rec2_#in~jInParam_1|} AuxVars[] AssignedVars[rec2_#in~j]< 51#rec2ENTRY 12.77/6.31 [2019-03-28 12:06:16,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 12.77/6.31 [2019-03-28 12:06:16,353 INFO L82 PathProgramCache]: Analyzing trace with hash 2474, now seen corresponding path program 2 times 12.77/6.31 [2019-03-28 12:06:16,353 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 12.77/6.31 [2019-03-28 12:06:16,353 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 12.77/6.31 [2019-03-28 12:06:16,354 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 12.77/6.31 [2019-03-28 12:06:16,355 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 12.77/6.31 [2019-03-28 12:06:16,355 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 12.77/6.31 [2019-03-28 12:06:16,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 12.77/6.31 [2019-03-28 12:06:16,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 12.77/6.31 [2019-03-28 12:06:16,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 12.77/6.31 [2019-03-28 12:06:16,359 INFO L82 PathProgramCache]: Analyzing trace with hash -129367784, now seen corresponding path program 1 times 12.77/6.31 [2019-03-28 12:06:16,359 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 12.77/6.31 [2019-03-28 12:06:16,360 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 12.77/6.31 [2019-03-28 12:06:16,360 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 12.77/6.31 [2019-03-28 12:06:16,360 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY 12.77/6.31 [2019-03-28 12:06:16,361 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 12.77/6.31 [2019-03-28 12:06:16,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 12.77/6.31 [2019-03-28 12:06:16,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 12.77/6.31 [2019-03-28 12:06:16,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 12.77/6.31 [2019-03-28 12:06:16,391 INFO L82 PathProgramCache]: Analyzing trace with hash -287187007, now seen corresponding path program 1 times 12.77/6.31 [2019-03-28 12:06:16,391 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 12.77/6.31 [2019-03-28 12:06:16,391 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 12.77/6.31 [2019-03-28 12:06:16,392 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 12.77/6.31 [2019-03-28 12:06:16,392 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 12.77/6.31 [2019-03-28 12:06:16,392 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 12.77/6.31 [2019-03-28 12:06:16,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 12.77/6.31 [2019-03-28 12:06:16,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 12.77/6.31 [2019-03-28 12:06:16,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.03 12:06:16 BasicIcfg 12.77/6.31 [2019-03-28 12:06:16,826 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- 12.77/6.31 [2019-03-28 12:06:16,826 INFO L168 Benchmark]: Toolchain (without parser) took 1698.64 ms. Allocated memory was 649.6 MB in the beginning and 673.2 MB in the end (delta: 23.6 MB). Free memory was 558.4 MB in the beginning and 515.5 MB in the end (delta: 42.9 MB). Peak memory consumption was 66.5 MB. Max. memory is 50.3 GB. 12.77/6.31 [2019-03-28 12:06:16,828 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 649.6 MB. Free memory is still 580.0 MB. There was no memory consumed. Max. memory is 50.3 GB. 12.77/6.31 [2019-03-28 12:06:16,829 INFO L168 Benchmark]: CACSL2BoogieTranslator took 290.51 ms. Allocated memory was 649.6 MB in the beginning and 673.2 MB in the end (delta: 23.6 MB). Free memory was 558.4 MB in the beginning and 641.0 MB in the end (delta: -82.5 MB). Peak memory consumption was 30.5 MB. Max. memory is 50.3 GB. 12.77/6.31 [2019-03-28 12:06:16,830 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.66 ms. Allocated memory is still 673.2 MB. Free memory was 641.0 MB in the beginning and 638.1 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 50.3 GB. 12.77/6.31 [2019-03-28 12:06:16,830 INFO L168 Benchmark]: Boogie Preprocessor took 16.80 ms. Allocated memory is still 673.2 MB. Free memory was 638.1 MB in the beginning and 637.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. 12.77/6.31 [2019-03-28 12:06:16,831 INFO L168 Benchmark]: RCFGBuilder took 209.38 ms. Allocated memory is still 673.2 MB. Free memory was 637.0 MB in the beginning and 622.2 MB in the end (delta: 14.8 MB). Peak memory consumption was 14.8 MB. Max. memory is 50.3 GB. 12.77/6.31 [2019-03-28 12:06:16,832 INFO L168 Benchmark]: BlockEncodingV2 took 74.40 ms. Allocated memory is still 673.2 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. 12.77/6.31 [2019-03-28 12:06:16,832 INFO L168 Benchmark]: TraceAbstraction took 189.13 ms. Allocated memory is still 673.2 MB. Free memory was 615.7 MB in the beginning and 603.9 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 50.3 GB. 12.77/6.31 [2019-03-28 12:06:16,833 INFO L168 Benchmark]: BuchiAutomizer took 878.50 ms. Allocated memory is still 673.2 MB. Free memory was 603.9 MB in the beginning and 515.5 MB in the end (delta: 88.4 MB). Peak memory consumption was 88.4 MB. Max. memory is 50.3 GB. 12.77/6.31 [2019-03-28 12:06:16,838 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### 12.77/6.31 --- Results --- 12.77/6.31 * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: 12.77/6.31 - StatisticsResult: Initial Icfg 12.77/6.31 21 locations, 26 edges 12.77/6.31 - StatisticsResult: Encoded RCFG 12.77/6.31 17 locations, 22 edges 12.77/6.31 * Results from de.uni_freiburg.informatik.ultimate.core: 12.77/6.31 - StatisticsResult: Toolchain Benchmarks 12.77/6.31 Benchmark results are: 12.77/6.31 * CDTParser took 0.16 ms. Allocated memory is still 649.6 MB. Free memory is still 580.0 MB. There was no memory consumed. Max. memory is 50.3 GB. 12.77/6.31 * CACSL2BoogieTranslator took 290.51 ms. Allocated memory was 649.6 MB in the beginning and 673.2 MB in the end (delta: 23.6 MB). Free memory was 558.4 MB in the beginning and 641.0 MB in the end (delta: -82.5 MB). Peak memory consumption was 30.5 MB. Max. memory is 50.3 GB. 12.77/6.31 * Boogie Procedure Inliner took 34.66 ms. Allocated memory is still 673.2 MB. Free memory was 641.0 MB in the beginning and 638.1 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 50.3 GB. 12.77/6.31 * Boogie Preprocessor took 16.80 ms. Allocated memory is still 673.2 MB. Free memory was 638.1 MB in the beginning and 637.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. 12.77/6.31 * RCFGBuilder took 209.38 ms. Allocated memory is still 673.2 MB. Free memory was 637.0 MB in the beginning and 622.2 MB in the end (delta: 14.8 MB). Peak memory consumption was 14.8 MB. Max. memory is 50.3 GB. 12.77/6.31 * BlockEncodingV2 took 74.40 ms. Allocated memory is still 673.2 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. 12.77/6.31 * TraceAbstraction took 189.13 ms. Allocated memory is still 673.2 MB. Free memory was 615.7 MB in the beginning and 603.9 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 50.3 GB. 12.77/6.31 * BuchiAutomizer took 878.50 ms. Allocated memory is still 673.2 MB. Free memory was 603.9 MB in the beginning and 515.5 MB in the end (delta: 88.4 MB). Peak memory consumption was 88.4 MB. Max. memory is 50.3 GB. 12.77/6.32 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: 12.77/6.32 - AllSpecificationsHoldResult: All specifications hold 12.77/6.32 We were not able to verify any specifiation because the program does not contain any specification. 12.77/6.32 - StatisticsResult: Ultimate Automizer benchmark data 12.77/6.32 CFG has 3 procedures, 17 locations, 0 error locations. SAFE Result, 0.1s 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=17occurred 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, 8 LocationsWithAnnotation, 23 PreInvPairs, 23 NumberOfFragments, 8 HoareAnnotationTreeSize, 23 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available 12.77/6.32 - StatisticsResult: Constructed decomposition of program 12.77/6.32 Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 16 locations. 12.77/6.32 - StatisticsResult: Timing statistics 12.77/6.32 BüchiAutomizer plugin needed 0.8s and 2 iterations. TraceHistogramMax:4. Analysis of lassos took 0.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 16 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 17 SDtfs, 7 SDslu, 32 SDs, 0 SdLazy, 34 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s 12.77/6.32 - TerminationAnalysisResult: Nontermination possible 12.77/6.32 Buchi Automizer proved that your program is nonterminating for some inputs 12.77/6.32 - FixpointNonTerminationResult [Line: 17]: Nontermination argument in form of an infinite program execution. 12.77/6.32 Nontermination argument in form of an infinite execution 12.77/6.32 State at position 0 is 12.77/6.32 {} 12.77/6.32 State at position 1 is 12.77/6.32 {NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6b2c811a=0, \old(j)=1, \result=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@a999e92=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@dd3dbe=0, x=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4601bec4=0, j=0} 12.77/6.32 - StatisticsResult: NonterminationArgumentStatistics 12.77/6.32 Fixpoint 12.77/6.32 - NonterminatingLassoResult [Line: 17]: Nonterminating execution 12.77/6.32 Found a nonterminating execution for the following lasso shaped sequence of statements. 12.77/6.32 Stem: 12.77/6.32 [L24] int x = __VERIFIER_nondet_int(); 12.77/6.32 [L25] CALL rec2(x) 12.77/6.32 Loop: 12.77/6.32 [L18] COND FALSE !(j <= 0) 12.77/6.32 [L20] CALL, EXPR rec1(j+1) 12.77/6.32 [L12] COND FALSE !(i <= 0) 12.77/6.32 [L14] CALL, EXPR rec1(i-2) 12.77/6.32 [L12] COND TRUE i <= 0 12.77/6.32 [L13] return 0; 12.77/6.32 [L14] RET, EXPR rec1(i-2) 12.77/6.32 [L14] CALL, EXPR rec1(rec1(i-2) - 1) 12.77/6.32 [L12] COND TRUE i <= 0 12.77/6.32 [L13] return 0; 12.77/6.32 [L14] RET, EXPR rec1(rec1(i-2) - 1) 12.77/6.32 [L14] CALL, EXPR rec1(rec1(rec1(i-2) - 1)) 12.77/6.32 [L12] COND TRUE i <= 0 12.77/6.32 [L13] return 0; 12.77/6.32 [L14] RET, EXPR rec1(rec1(rec1(i-2) - 1)) 12.77/6.32 [L14] return rec1(rec1(rec1(i-2) - 1)) + 1; 12.77/6.32 [L20] RET, EXPR rec1(j+1) 12.77/6.32 [L20] CALL rec2(rec1(j+1)) 12.77/6.32 End of lasso representation. 12.77/6.32 RESULT: Ultimate proved your program to be incorrect! 12.77/6.32 !SESSION 2019-03-28 12:06:11.917 ----------------------------------------------- 12.77/6.32 eclipse.buildId=unknown 12.77/6.32 java.version=1.8.0_181 12.77/6.32 java.vendor=Oracle Corporation 12.77/6.32 BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US 12.77/6.32 Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox/benchmark/theBenchmark.c 12.77/6.32 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 12.77/6.32 12.77/6.32 !ENTRY org.eclipse.core.resources 2 10035 2019-03-28 12:06:17.076 12.77/6.32 !MESSAGE The workspace will exit with unsaved changes in this session. 12.77/6.32 Received shutdown request... 12.77/6.32 Ultimate: 12.77/6.32 GTK+ Version Check 12.77/6.32 EOF