12.24/6.43 YES 12.24/6.43 12.24/6.43 Ultimate: Cannot open display: 12.24/6.43 This is Ultimate 0.1.24-8dc7c08-m 12.24/6.43 [2019-03-28 12:05:31,050 INFO L170 SettingsManager]: Resetting all preferences to default values... 12.24/6.43 [2019-03-28 12:05:31,054 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values 12.24/6.43 [2019-03-28 12:05:31,066 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 12.24/6.43 [2019-03-28 12:05:31,066 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values 12.24/6.43 [2019-03-28 12:05:31,067 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values 12.24/6.43 [2019-03-28 12:05:31,068 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values 12.24/6.43 [2019-03-28 12:05:31,070 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values 12.24/6.43 [2019-03-28 12:05:31,071 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values 12.24/6.43 [2019-03-28 12:05:31,072 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values 12.24/6.43 [2019-03-28 12:05:31,073 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 12.24/6.43 [2019-03-28 12:05:31,073 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values 12.24/6.43 [2019-03-28 12:05:31,074 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values 12.24/6.43 [2019-03-28 12:05:31,075 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values 12.24/6.43 [2019-03-28 12:05:31,076 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values 12.24/6.43 [2019-03-28 12:05:31,077 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values 12.24/6.43 [2019-03-28 12:05:31,078 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values 12.24/6.43 [2019-03-28 12:05:31,079 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values 12.24/6.43 [2019-03-28 12:05:31,081 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values 12.24/6.43 [2019-03-28 12:05:31,083 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values 12.24/6.43 [2019-03-28 12:05:31,084 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values 12.24/6.43 [2019-03-28 12:05:31,085 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values 12.24/6.43 [2019-03-28 12:05:31,087 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 12.24/6.43 [2019-03-28 12:05:31,088 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... 12.24/6.43 [2019-03-28 12:05:31,088 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values 12.24/6.43 [2019-03-28 12:05:31,089 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values 12.24/6.43 [2019-03-28 12:05:31,089 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values 12.24/6.43 [2019-03-28 12:05:31,090 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... 12.24/6.43 [2019-03-28 12:05:31,090 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values 12.24/6.43 [2019-03-28 12:05:31,091 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values 12.24/6.43 [2019-03-28 12:05:31,092 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values 12.24/6.43 [2019-03-28 12:05:31,093 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values 12.24/6.43 [2019-03-28 12:05:31,094 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... 12.24/6.43 [2019-03-28 12:05:31,094 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values 12.24/6.43 [2019-03-28 12:05:31,095 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 12.24/6.43 [2019-03-28 12:05:31,095 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... 12.24/6.43 [2019-03-28 12:05:31,095 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values 12.24/6.43 [2019-03-28 12:05:31,096 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values 12.24/6.43 [2019-03-28 12:05:31,097 INFO L181 SettingsManager]: Finished resetting all preferences to default values... 12.24/6.43 [2019-03-28 12:05:31,097 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf 12.24/6.43 [2019-03-28 12:05:31,112 INFO L110 SettingsManager]: Loading preferences was successful 12.24/6.43 [2019-03-28 12:05:31,113 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: 12.24/6.43 [2019-03-28 12:05:31,114 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: 12.24/6.43 [2019-03-28 12:05:31,114 INFO L133 SettingsManager]: * Rewrite not-equals=true 12.24/6.43 [2019-03-28 12:05:31,114 INFO L133 SettingsManager]: * Create parallel compositions if possible=false 12.24/6.43 [2019-03-28 12:05:31,114 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE 12.24/6.43 [2019-03-28 12:05:31,114 INFO L133 SettingsManager]: * Use SBE=true 12.24/6.43 [2019-03-28 12:05:31,115 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: 12.24/6.43 [2019-03-28 12:05:31,115 INFO L133 SettingsManager]: * Use old map elimination=false 12.24/6.43 [2019-03-28 12:05:31,115 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false 12.24/6.43 [2019-03-28 12:05:31,115 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION 12.24/6.43 [2019-03-28 12:05:31,115 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true 12.24/6.43 [2019-03-28 12:05:31,116 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES 12.24/6.43 [2019-03-28 12:05:31,116 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true 12.24/6.43 [2019-03-28 12:05:31,116 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 12.24/6.43 [2019-03-28 12:05:31,116 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: 12.24/6.43 [2019-03-28 12:05:31,116 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false 12.24/6.43 [2019-03-28 12:05:31,117 INFO L133 SettingsManager]: * Check division by zero=IGNORE 12.24/6.43 [2019-03-28 12:05:31,117 INFO L133 SettingsManager]: * Check if freed pointer was valid=false 12.24/6.43 [2019-03-28 12:05:31,117 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false 12.24/6.43 [2019-03-28 12:05:31,117 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE 12.24/6.43 [2019-03-28 12:05:31,117 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: 12.24/6.43 [2019-03-28 12:05:31,118 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements 12.24/6.43 [2019-03-28 12:05:31,118 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump 12.24/6.43 [2019-03-28 12:05:31,118 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 12.24/6.43 [2019-03-28 12:05:31,118 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: 12.24/6.43 [2019-03-28 12:05:31,118 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles 12.24/6.43 [2019-03-28 12:05:31,119 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL 12.24/6.43 [2019-03-28 12:05:31,119 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 12.24/6.43 [2019-03-28 12:05:31,144 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp 12.24/6.43 [2019-03-28 12:05:31,158 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized 12.24/6.43 [2019-03-28 12:05:31,162 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. 12.24/6.43 [2019-03-28 12:05:31,163 INFO L271 PluginConnector]: Initializing CDTParser... 12.24/6.43 [2019-03-28 12:05:31,163 INFO L276 PluginConnector]: CDTParser initialized 12.24/6.43 [2019-03-28 12:05:31,164 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c 12.24/6.43 [2019-03-28 12:05:31,229 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/6987ac858d884282be9554d39b48c82d/FLAGcd2c9f747 12.24/6.43 [2019-03-28 12:05:31,720 INFO L307 CDTParser]: Found 1 translation units. 12.24/6.43 [2019-03-28 12:05:31,720 INFO L161 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c 12.24/6.43 [2019-03-28 12:05:31,727 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/6987ac858d884282be9554d39b48c82d/FLAGcd2c9f747 12.24/6.43 [2019-03-28 12:05:32,125 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/6987ac858d884282be9554d39b48c82d 12.24/6.43 [2019-03-28 12:05:32,136 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### 12.24/6.43 [2019-03-28 12:05:32,138 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. 12.24/6.43 [2019-03-28 12:05:32,139 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- 12.24/6.43 [2019-03-28 12:05:32,139 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... 12.24/6.43 [2019-03-28 12:05:32,143 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized 12.24/6.43 [2019-03-28 12:05:32,144 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.03 12:05:32" (1/1) ... 12.24/6.43 [2019-03-28 12:05:32,147 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@272c6937 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:05:32, skipping insertion in model container 12.24/6.43 [2019-03-28 12:05:32,147 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.03 12:05:32" (1/1) ... 12.24/6.43 [2019-03-28 12:05:32,156 INFO L145 MainTranslator]: Starting translation in SV-COMP mode 12.24/6.43 [2019-03-28 12:05:32,173 INFO L176 MainTranslator]: Built tables and reachable declarations 12.24/6.43 [2019-03-28 12:05:32,337 INFO L206 PostProcessor]: Analyzing one entry point: main 12.24/6.43 [2019-03-28 12:05:32,342 INFO L191 MainTranslator]: Completed pre-run 12.24/6.43 [2019-03-28 12:05:32,358 INFO L206 PostProcessor]: Analyzing one entry point: main 12.24/6.43 [2019-03-28 12:05:32,373 INFO L195 MainTranslator]: Completed translation 12.24/6.43 [2019-03-28 12:05:32,374 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:05:32 WrapperNode 12.24/6.43 [2019-03-28 12:05:32,374 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- 12.24/6.43 [2019-03-28 12:05:32,375 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- 12.24/6.43 [2019-03-28 12:05:32,375 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... 12.24/6.43 [2019-03-28 12:05:32,375 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized 12.24/6.43 [2019-03-28 12:05:32,443 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:05:32" (1/1) ... 12.24/6.43 [2019-03-28 12:05:32,449 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:05:32" (1/1) ... 12.24/6.43 [2019-03-28 12:05:32,470 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- 12.24/6.43 [2019-03-28 12:05:32,471 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- 12.24/6.43 [2019-03-28 12:05:32,471 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... 12.24/6.43 [2019-03-28 12:05:32,471 INFO L276 PluginConnector]: Boogie Preprocessor initialized 12.24/6.43 [2019-03-28 12:05:32,481 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:05:32" (1/1) ... 12.24/6.43 [2019-03-28 12:05:32,481 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:05:32" (1/1) ... 12.24/6.43 [2019-03-28 12:05:32,481 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:05:32" (1/1) ... 12.24/6.43 [2019-03-28 12:05:32,482 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:05:32" (1/1) ... 12.24/6.43 [2019-03-28 12:05:32,483 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:05:32" (1/1) ... 12.24/6.43 [2019-03-28 12:05:32,488 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:05:32" (1/1) ... 12.24/6.43 [2019-03-28 12:05:32,489 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:05:32" (1/1) ... 12.24/6.43 [2019-03-28 12:05:32,490 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- 12.24/6.43 [2019-03-28 12:05:32,491 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- 12.24/6.43 [2019-03-28 12:05:32,491 INFO L271 PluginConnector]: Initializing RCFGBuilder... 12.24/6.43 [2019-03-28 12:05:32,491 INFO L276 PluginConnector]: RCFGBuilder initialized 12.24/6.43 [2019-03-28 12:05:32,492 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:05:32" (1/1) ... 12.24/6.43 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 12.24/6.43 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) 12.24/6.43 Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 12.24/6.43 [2019-03-28 12:05:32,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start 12.24/6.43 [2019-03-28 12:05:32,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start 12.24/6.43 [2019-03-28 12:05:32,685 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) 12.24/6.43 [2019-03-28 12:05:32,685 INFO L286 CfgBuilder]: Removed 7 assue(true) statements. 12.24/6.43 [2019-03-28 12:05:32,687 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 12:05:32 BoogieIcfgContainer 12.24/6.43 [2019-03-28 12:05:32,687 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- 12.24/6.43 [2019-03-28 12:05:32,688 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- 12.24/6.43 [2019-03-28 12:05:32,688 INFO L271 PluginConnector]: Initializing BlockEncodingV2... 12.24/6.43 [2019-03-28 12:05:32,690 INFO L276 PluginConnector]: BlockEncodingV2 initialized 12.24/6.43 [2019-03-28 12:05:32,690 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 12:05:32" (1/1) ... 12.24/6.43 [2019-03-28 12:05:32,704 INFO L313 BlockEncoder]: Initial Icfg 7 locations, 8 edges 12.24/6.43 [2019-03-28 12:05:32,706 INFO L258 BlockEncoder]: Using Remove infeasible edges 12.24/6.43 [2019-03-28 12:05:32,706 INFO L263 BlockEncoder]: Using Maximize final states 12.24/6.43 [2019-03-28 12:05:32,707 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false 12.24/6.43 [2019-03-28 12:05:32,707 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE 12.24/6.43 [2019-03-28 12:05:32,709 INFO L296 BlockEncoder]: Using Remove sink states 12.24/6.43 [2019-03-28 12:05:32,710 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true 12.24/6.43 [2019-03-28 12:05:32,710 INFO L179 BlockEncoder]: Using Rewrite not-equals 12.24/6.43 [2019-03-28 12:05:32,724 INFO L185 BlockEncoder]: Using Use SBE 12.24/6.43 [2019-03-28 12:05:32,738 INFO L200 BlockEncoder]: SBE split 1 edges 12.24/6.43 [2019-03-28 12:05:32,743 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility 12.24/6.43 [2019-03-28 12:05:32,744 INFO L71 MaximizeFinalStates]: 0 new accepting states 12.24/6.43 [2019-03-28 12:05:32,756 INFO L100 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding 12.24/6.43 [2019-03-28 12:05:32,758 INFO L70 RemoveSinkStates]: Removed 3 edges and 2 locations by removing sink states 12.24/6.43 [2019-03-28 12:05:32,760 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility 12.24/6.43 [2019-03-28 12:05:32,760 INFO L71 MaximizeFinalStates]: 0 new accepting states 12.24/6.43 [2019-03-28 12:05:32,760 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding 12.24/6.43 [2019-03-28 12:05:32,761 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states 12.24/6.43 [2019-03-28 12:05:32,761 INFO L313 BlockEncoder]: Encoded RCFG 2 locations, 2 edges 12.24/6.43 [2019-03-28 12:05:32,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 28.03 12:05:32 BasicIcfg 12.24/6.43 [2019-03-28 12:05:32,762 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- 12.24/6.43 [2019-03-28 12:05:32,763 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- 12.24/6.43 [2019-03-28 12:05:32,763 INFO L271 PluginConnector]: Initializing TraceAbstraction... 12.24/6.43 [2019-03-28 12:05:32,766 INFO L276 PluginConnector]: TraceAbstraction initialized 12.24/6.43 [2019-03-28 12:05:32,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.03 12:05:32" (1/4) ... 12.24/6.43 [2019-03-28 12:05:32,767 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67f01781 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.03 12:05:32, skipping insertion in model container 12.24/6.43 [2019-03-28 12:05:32,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:05:32" (2/4) ... 12.24/6.43 [2019-03-28 12:05:32,768 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67f01781 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.03 12:05:32, skipping insertion in model container 12.24/6.43 [2019-03-28 12:05:32,768 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 12:05:32" (3/4) ... 12.24/6.43 [2019-03-28 12:05:32,768 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67f01781 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.03 12:05:32, skipping insertion in model container 12.24/6.43 [2019-03-28 12:05:32,768 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 28.03 12:05:32" (4/4) ... 12.24/6.43 [2019-03-28 12:05:32,770 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 12.24/6.43 [2019-03-28 12:05:32,780 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION 12.24/6.43 [2019-03-28 12:05:32,788 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. 12.24/6.43 [2019-03-28 12:05:32,805 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. 12.24/6.43 [2019-03-28 12:05:32,833 INFO L133 ementStrategyFactory]: Using default assertion order modulation 12.24/6.43 [2019-03-28 12:05:32,834 INFO L382 AbstractCegarLoop]: Interprodecural is true 12.24/6.43 [2019-03-28 12:05:32,834 INFO L383 AbstractCegarLoop]: Hoare is true 12.24/6.43 [2019-03-28 12:05:32,834 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates 12.24/6.43 [2019-03-28 12:05:32,835 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE 12.24/6.43 [2019-03-28 12:05:32,835 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION 12.24/6.43 [2019-03-28 12:05:32,835 INFO L387 AbstractCegarLoop]: Difference is false 12.24/6.43 [2019-03-28 12:05:32,835 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA 12.24/6.43 [2019-03-28 12:05:32,835 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== 12.24/6.43 [2019-03-28 12:05:32,849 INFO L276 IsEmpty]: Start isEmpty. Operand 2 states. 12.24/6.43 [2019-03-28 12:05:32,855 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. 12.24/6.43 [2019-03-28 12:05:32,858 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 2 states. 12.24/6.43 [2019-03-28 12:05:32,908 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. 12.24/6.43 [2019-03-28 12:05:32,908 INFO L451 ceAbstractionStarter]: At program point L6-2(lines 6 10) the Hoare annotation is: true 12.24/6.43 [2019-03-28 12:05:32,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.03 12:05:32 BasicIcfg 12.24/6.43 [2019-03-28 12:05:32,916 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- 12.24/6.43 [2019-03-28 12:05:32,917 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- 12.24/6.43 [2019-03-28 12:05:32,917 INFO L271 PluginConnector]: Initializing BuchiAutomizer... 12.24/6.43 [2019-03-28 12:05:32,920 INFO L276 PluginConnector]: BuchiAutomizer initialized 12.24/6.43 [2019-03-28 12:05:32,921 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 12.24/6.43 [2019-03-28 12:05:32,921 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.03 12:05:32" (1/5) ... 12.24/6.43 [2019-03-28 12:05:32,922 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@56db795f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.03 12:05:32, skipping insertion in model container 12.24/6.43 [2019-03-28 12:05:32,922 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 12.24/6.43 [2019-03-28 12:05:32,922 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:05:32" (2/5) ... 12.24/6.43 [2019-03-28 12:05:32,922 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@56db795f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.03 12:05:32, skipping insertion in model container 12.24/6.43 [2019-03-28 12:05:32,923 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 12.24/6.43 [2019-03-28 12:05:32,923 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 12:05:32" (3/5) ... 12.24/6.43 [2019-03-28 12:05:32,923 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@56db795f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.03 12:05:32, skipping insertion in model container 12.24/6.43 [2019-03-28 12:05:32,923 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 12.24/6.43 [2019-03-28 12:05:32,923 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 28.03 12:05:32" (4/5) ... 12.24/6.43 [2019-03-28 12:05:32,924 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@56db795f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.03 12:05:32, skipping insertion in model container 12.24/6.43 [2019-03-28 12:05:32,924 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 12.24/6.43 [2019-03-28 12:05:32,924 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.03 12:05:32" (5/5) ... 12.24/6.43 [2019-03-28 12:05:32,925 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 12.24/6.43 [2019-03-28 12:05:32,953 INFO L133 ementStrategyFactory]: Using default assertion order modulation 12.24/6.43 [2019-03-28 12:05:32,953 INFO L374 BuchiCegarLoop]: Interprodecural is true 12.24/6.43 [2019-03-28 12:05:32,954 INFO L375 BuchiCegarLoop]: Hoare is true 12.24/6.43 [2019-03-28 12:05:32,954 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates 12.24/6.43 [2019-03-28 12:05:32,954 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE 12.24/6.43 [2019-03-28 12:05:32,954 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION 12.24/6.43 [2019-03-28 12:05:32,954 INFO L379 BuchiCegarLoop]: Difference is false 12.24/6.43 [2019-03-28 12:05:32,955 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA 12.24/6.43 [2019-03-28 12:05:32,955 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== 12.24/6.43 [2019-03-28 12:05:32,958 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2 states. 12.24/6.43 [2019-03-28 12:05:32,975 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 12.24/6.43 [2019-03-28 12:05:32,975 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 12.24/6.43 [2019-03-28 12:05:32,975 INFO L119 BuchiIsEmpty]: Starting construction of run 12.24/6.43 [2019-03-28 12:05:32,980 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] 12.24/6.43 [2019-03-28 12:05:32,981 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] 12.24/6.43 [2019-03-28 12:05:32,981 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ 12.24/6.43 [2019-03-28 12:05:32,981 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2 states. 12.24/6.43 [2019-03-28 12:05:32,981 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 12.24/6.43 [2019-03-28 12:05:32,981 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 12.24/6.43 [2019-03-28 12:05:32,982 INFO L119 BuchiIsEmpty]: Starting construction of run 12.24/6.43 [2019-03-28 12:05:32,982 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] 12.24/6.43 [2019-03-28 12:05:32,982 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] 12.24/6.43 [2019-03-28 12:05:32,987 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [21] ULTIMATE.startENTRY-->L6-2: Formula: (and (= |v_ULTIMATE.start_test_fun_#in~x_1| |v_ULTIMATE.start_main_#t~nondet0_2|) (= |v_ULTIMATE.start_test_fun_#in~y_1| |v_ULTIMATE.start_main_#t~nondet1_2|) (= v_ULTIMATE.start_test_fun_~x_1 |v_ULTIMATE.start_test_fun_#in~x_1|) (= |v_ULTIMATE.start_test_fun_#in~z_1| |v_ULTIMATE.start_main_#t~nondet2_2|) (= v_ULTIMATE.start_test_fun_~z_1 |v_ULTIMATE.start_test_fun_#in~z_1|) (= v_ULTIMATE.start_test_fun_~y_1 |v_ULTIMATE.start_test_fun_#in~y_1|) (= v_ULTIMATE.start_test_fun_~c~0_1 0)) InVars {} OutVars{ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_1, ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_2|, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_1, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_2|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_2|, ULTIMATE.start_test_fun_#in~z=|v_ULTIMATE.start_test_fun_#in~z_1|, ULTIMATE.start_test_fun_#in~y=|v_ULTIMATE.start_test_fun_#in~y_1|, ULTIMATE.start_test_fun_~z=v_ULTIMATE.start_test_fun_~z_1, ULTIMATE.start_test_fun_#in~x=|v_ULTIMATE.start_test_fun_#in~x_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_2|, ULTIMATE.start_test_fun_#res=|v_ULTIMATE.start_test_fun_#res_2|, ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_1, ULTIMATE.start_main_#t~ret3=|v_ULTIMATE.start_main_#t~ret3_3|} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~y, ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_test_fun_~x, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_test_fun_#in~z, ULTIMATE.start_test_fun_#in~y, ULTIMATE.start_test_fun_~z, ULTIMATE.start_test_fun_#in~x, ULTIMATE.start_main_#res, ULTIMATE.start_test_fun_#res, ULTIMATE.start_test_fun_~c~0, ULTIMATE.start_main_#t~ret3] 4#L6-2true 12.24/6.43 [2019-03-28 12:05:32,988 INFO L796 eck$LassoCheckResult]: Loop: 4#L6-2true [27] L6-2-->L6-2: Formula: (and (= v_ULTIMATE.start_test_fun_~y_4 (+ v_ULTIMATE.start_test_fun_~y_5 (- 1))) (< v_ULTIMATE.start_test_fun_~z_4 v_ULTIMATE.start_test_fun_~x_5) (= v_ULTIMATE.start_test_fun_~x_4 (+ v_ULTIMATE.start_test_fun_~x_5 (- 1))) (= v_ULTIMATE.start_test_fun_~c~0_3 (+ v_ULTIMATE.start_test_fun_~c~0_4 1)) (< v_ULTIMATE.start_test_fun_~z_4 v_ULTIMATE.start_test_fun_~y_5)) InVars {ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_5, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_5, ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_4, ULTIMATE.start_test_fun_~z=v_ULTIMATE.start_test_fun_~z_4} OutVars{ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_4, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_4, ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_3, ULTIMATE.start_test_fun_~z=v_ULTIMATE.start_test_fun_~z_4} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~y, ULTIMATE.start_test_fun_~x, ULTIMATE.start_test_fun_~c~0] 4#L6-2true 12.24/6.43 [2019-03-28 12:05:32,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 12.24/6.43 [2019-03-28 12:05:32,994 INFO L82 PathProgramCache]: Analyzing trace with hash 52, now seen corresponding path program 1 times 12.24/6.43 [2019-03-28 12:05:32,996 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 12.24/6.43 [2019-03-28 12:05:32,996 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 12.24/6.43 [2019-03-28 12:05:33,016 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 12.24/6.43 [2019-03-28 12:05:33,017 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 12.24/6.43 [2019-03-28 12:05:33,017 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 12.24/6.43 [2019-03-28 12:05:33,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 12.24/6.43 [2019-03-28 12:05:33,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 12.24/6.43 [2019-03-28 12:05:33,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 12.24/6.43 [2019-03-28 12:05:33,068 INFO L82 PathProgramCache]: Analyzing trace with hash 58, now seen corresponding path program 1 times 12.24/6.43 [2019-03-28 12:05:33,068 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 12.24/6.43 [2019-03-28 12:05:33,068 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 12.24/6.43 [2019-03-28 12:05:33,069 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 12.24/6.43 [2019-03-28 12:05:33,070 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 12.24/6.43 [2019-03-28 12:05:33,070 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 12.24/6.43 [2019-03-28 12:05:33,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 12.24/6.43 [2019-03-28 12:05:33,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 12.24/6.43 [2019-03-28 12:05:33,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 12.24/6.43 [2019-03-28 12:05:33,084 INFO L82 PathProgramCache]: Analyzing trace with hash 1639, now seen corresponding path program 1 times 12.24/6.43 [2019-03-28 12:05:33,084 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 12.24/6.43 [2019-03-28 12:05:33,084 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 12.24/6.43 [2019-03-28 12:05:33,085 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 12.24/6.43 [2019-03-28 12:05:33,085 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 12.24/6.43 [2019-03-28 12:05:33,085 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 12.24/6.43 [2019-03-28 12:05:33,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 12.24/6.43 [2019-03-28 12:05:33,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 12.24/6.43 [2019-03-28 12:05:33,153 INFO L216 LassoAnalysis]: Preferences: 12.24/6.43 [2019-03-28 12:05:33,154 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 12.24/6.43 [2019-03-28 12:05:33,154 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 12.24/6.43 [2019-03-28 12:05:33,154 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 12.24/6.43 [2019-03-28 12:05:33,154 INFO L127 ssoRankerPreferences]: Use exernal solver: true 12.24/6.43 [2019-03-28 12:05:33,155 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 12.24/6.43 [2019-03-28 12:05:33,155 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 12.24/6.43 [2019-03-28 12:05:33,155 INFO L130 ssoRankerPreferences]: Path of dumped script: 12.24/6.43 [2019-03-28 12:05:33,155 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop 12.24/6.43 [2019-03-28 12:05:33,155 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 12.24/6.43 [2019-03-28 12:05:33,156 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 12.24/6.43 [2019-03-28 12:05:33,174 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 12.24/6.43 [2019-03-28 12:05:33,201 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 12.24/6.43 [2019-03-28 12:05:33,290 INFO L300 LassoAnalysis]: Preprocessing complete. 12.24/6.43 [2019-03-28 12:05:33,291 INFO L412 LassoAnalysis]: Checking for nontermination... 12.24/6.43 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 12.24/6.43 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 12.24/6.43 Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 12.24/6.43 [2019-03-28 12:05:33,299 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 12.24/6.43 [2019-03-28 12:05:33,299 INFO L163 nArgumentSynthesizer]: Using integer mode. 12.24/6.43 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 12.24/6.43 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 12.24/6.43 Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 12.24/6.43 [2019-03-28 12:05:33,335 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true 12.24/6.43 [2019-03-28 12:05:33,335 INFO L163 nArgumentSynthesizer]: Using integer mode. 12.24/6.43 [2019-03-28 12:05:33,670 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. 12.24/6.43 [2019-03-28 12:05:33,673 INFO L216 LassoAnalysis]: Preferences: 12.24/6.43 [2019-03-28 12:05:33,691 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 12.24/6.43 [2019-03-28 12:05:33,691 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 12.24/6.43 [2019-03-28 12:05:33,691 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 12.24/6.43 [2019-03-28 12:05:33,691 INFO L127 ssoRankerPreferences]: Use exernal solver: false 12.24/6.43 [2019-03-28 12:05:33,692 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 12.24/6.43 [2019-03-28 12:05:33,692 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 12.24/6.43 [2019-03-28 12:05:33,692 INFO L130 ssoRankerPreferences]: Path of dumped script: 12.24/6.43 [2019-03-28 12:05:33,692 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop 12.24/6.43 [2019-03-28 12:05:33,692 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 12.24/6.43 [2019-03-28 12:05:33,692 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 12.24/6.43 [2019-03-28 12:05:33,694 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 12.24/6.43 [2019-03-28 12:05:33,716 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 12.24/6.43 [2019-03-28 12:05:33,785 INFO L300 LassoAnalysis]: Preprocessing complete. 12.24/6.43 [2019-03-28 12:05:33,791 INFO L497 LassoAnalysis]: Using template 'affine'. 12.24/6.43 [2019-03-28 12:05:33,793 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 12.24/6.43 Termination analysis: LINEAR_WITH_GUESSES 12.24/6.43 Number of strict supporting invariants: 0 12.24/6.43 Number of non-strict supporting invariants: 1 12.24/6.43 Consider only non-deceasing supporting invariants: true 12.24/6.43 Simplify termination arguments: true 12.24/6.43 Simplify supporting invariants: trueOverapproximate stem: false 12.24/6.43 [2019-03-28 12:05:33,794 INFO L339 nArgumentSynthesizer]: Template has degree 0. 12.24/6.43 [2019-03-28 12:05:33,794 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 12.24/6.43 [2019-03-28 12:05:33,795 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 12.24/6.43 [2019-03-28 12:05:33,795 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 12.24/6.43 [2019-03-28 12:05:33,796 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 12.24/6.43 [2019-03-28 12:05:33,800 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 12.24/6.43 [2019-03-28 12:05:33,801 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 12.24/6.43 [2019-03-28 12:05:33,814 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. 12.24/6.43 [2019-03-28 12:05:33,826 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. 12.24/6.43 [2019-03-28 12:05:33,827 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. 12.24/6.43 [2019-03-28 12:05:33,829 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... 12.24/6.43 [2019-03-28 12:05:33,830 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. 12.24/6.43 [2019-03-28 12:05:33,830 INFO L518 LassoAnalysis]: Proved termination. 12.24/6.43 [2019-03-28 12:05:33,831 INFO L520 LassoAnalysis]: Termination argument consisting of: 12.24/6.43 Ranking function f(ULTIMATE.start_test_fun_~y, ULTIMATE.start_test_fun_~z) = 1*ULTIMATE.start_test_fun_~y - 1*ULTIMATE.start_test_fun_~z 12.24/6.43 Supporting invariants [] 12.24/6.43 [2019-03-28 12:05:33,833 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed 12.24/6.43 [2019-03-28 12:05:33,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 12.24/6.43 [2019-03-28 12:05:33,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 12.24/6.43 [2019-03-28 12:05:33,874 INFO L256 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core 12.24/6.43 [2019-03-28 12:05:33,875 INFO L279 TraceCheckSpWp]: Computing forward predicates... 12.24/6.43 [2019-03-28 12:05:33,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 12.24/6.43 [2019-03-28 12:05:33,886 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core 12.24/6.43 [2019-03-28 12:05:33,887 INFO L279 TraceCheckSpWp]: Computing forward predicates... 12.24/6.43 [2019-03-28 12:05:33,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. 12.24/6.43 [2019-03-28 12:05:33,899 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization 12.24/6.43 [2019-03-28 12:05:33,904 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates 12.24/6.43 [2019-03-28 12:05:33,905 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 2 states. Second operand 2 states. 12.24/6.43 [2019-03-28 12:05:33,926 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 2 states.. Second operand 2 states. Result 3 states and 3 transitions. Complement of second has 2 states. 12.24/6.43 [2019-03-28 12:05:33,927 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states 12.24/6.43 [2019-03-28 12:05:33,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. 12.24/6.43 [2019-03-28 12:05:33,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 4 transitions. 12.24/6.43 [2019-03-28 12:05:33,931 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 4 transitions. Stem has 1 letters. Loop has 1 letters. 12.24/6.43 [2019-03-28 12:05:33,931 INFO L116 BuchiAccepts]: Finished buchiAccepts. 12.24/6.43 [2019-03-28 12:05:33,931 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 4 transitions. Stem has 2 letters. Loop has 1 letters. 12.24/6.43 [2019-03-28 12:05:33,931 INFO L116 BuchiAccepts]: Finished buchiAccepts. 12.24/6.43 [2019-03-28 12:05:33,932 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 4 transitions. Stem has 1 letters. Loop has 2 letters. 12.24/6.43 [2019-03-28 12:05:33,932 INFO L116 BuchiAccepts]: Finished buchiAccepts. 12.24/6.43 [2019-03-28 12:05:33,937 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 3 states and 3 transitions. 12.24/6.43 [2019-03-28 12:05:33,937 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 12.24/6.43 [2019-03-28 12:05:33,940 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 3 states to 0 states and 0 transitions. 12.24/6.43 [2019-03-28 12:05:33,941 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 12.24/6.43 [2019-03-28 12:05:33,941 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 12.24/6.43 [2019-03-28 12:05:33,942 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. 12.24/6.43 [2019-03-28 12:05:33,942 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. 12.24/6.43 [2019-03-28 12:05:33,942 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. 12.24/6.43 [2019-03-28 12:05:33,942 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. 12.24/6.43 [2019-03-28 12:05:33,943 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. 12.24/6.43 [2019-03-28 12:05:33,943 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ 12.24/6.43 [2019-03-28 12:05:33,943 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. 12.24/6.43 [2019-03-28 12:05:33,943 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 12.24/6.43 [2019-03-28 12:05:33,943 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true 12.24/6.43 [2019-03-28 12:05:33,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.03 12:05:33 BasicIcfg 12.24/6.43 [2019-03-28 12:05:33,949 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- 12.24/6.43 [2019-03-28 12:05:33,950 INFO L168 Benchmark]: Toolchain (without parser) took 1812.92 ms. Allocated memory was 649.6 MB in the beginning and 661.7 MB in the end (delta: 12.1 MB). Free memory was 559.8 MB in the beginning and 533.6 MB in the end (delta: 26.3 MB). Peak memory consumption was 38.3 MB. Max. memory is 50.3 GB. 12.24/6.43 [2019-03-28 12:05:33,951 INFO L168 Benchmark]: CDTParser took 0.17 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. 12.24/6.43 [2019-03-28 12:05:33,952 INFO L168 Benchmark]: CACSL2BoogieTranslator took 235.71 ms. Allocated memory is still 649.6 MB. Free memory was 559.8 MB in the beginning and 548.9 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 50.3 GB. 12.24/6.43 [2019-03-28 12:05:33,953 INFO L168 Benchmark]: Boogie Procedure Inliner took 95.42 ms. Allocated memory was 649.6 MB in the beginning and 661.7 MB in the end (delta: 12.1 MB). Free memory was 548.9 MB in the beginning and 628.0 MB in the end (delta: -79.1 MB). Peak memory consumption was 20.2 MB. Max. memory is 50.3 GB. 12.24/6.43 [2019-03-28 12:05:33,953 INFO L168 Benchmark]: Boogie Preprocessor took 19.48 ms. Allocated memory is still 661.7 MB. Free memory was 628.0 MB in the beginning and 626.2 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 50.3 GB. 12.24/6.43 [2019-03-28 12:05:33,954 INFO L168 Benchmark]: RCFGBuilder took 196.58 ms. Allocated memory is still 661.7 MB. Free memory was 626.2 MB in the beginning and 611.8 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 50.3 GB. 12.24/6.43 [2019-03-28 12:05:33,955 INFO L168 Benchmark]: BlockEncodingV2 took 74.23 ms. Allocated memory is still 661.7 MB. Free memory was 611.8 MB in the beginning and 607.7 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 50.3 GB. 12.24/6.43 [2019-03-28 12:05:33,955 INFO L168 Benchmark]: TraceAbstraction took 153.62 ms. Allocated memory is still 661.7 MB. Free memory was 606.4 MB in the beginning and 598.3 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 50.3 GB. 12.24/6.43 [2019-03-28 12:05:33,956 INFO L168 Benchmark]: BuchiAutomizer took 1032.46 ms. Allocated memory is still 661.7 MB. Free memory was 598.3 MB in the beginning and 533.6 MB in the end (delta: 64.8 MB). Peak memory consumption was 64.8 MB. Max. memory is 50.3 GB. 12.24/6.43 [2019-03-28 12:05:33,960 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### 12.24/6.43 --- Results --- 12.24/6.43 * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: 12.24/6.43 - StatisticsResult: Initial Icfg 12.24/6.43 7 locations, 8 edges 12.24/6.43 - StatisticsResult: Encoded RCFG 12.24/6.43 2 locations, 2 edges 12.24/6.43 * Results from de.uni_freiburg.informatik.ultimate.core: 12.24/6.43 - StatisticsResult: Toolchain Benchmarks 12.24/6.43 Benchmark results are: 12.24/6.43 * CDTParser took 0.17 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. 12.24/6.43 * CACSL2BoogieTranslator took 235.71 ms. Allocated memory is still 649.6 MB. Free memory was 559.8 MB in the beginning and 548.9 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 50.3 GB. 12.24/6.43 * Boogie Procedure Inliner took 95.42 ms. Allocated memory was 649.6 MB in the beginning and 661.7 MB in the end (delta: 12.1 MB). Free memory was 548.9 MB in the beginning and 628.0 MB in the end (delta: -79.1 MB). Peak memory consumption was 20.2 MB. Max. memory is 50.3 GB. 12.24/6.43 * Boogie Preprocessor took 19.48 ms. Allocated memory is still 661.7 MB. Free memory was 628.0 MB in the beginning and 626.2 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 50.3 GB. 12.24/6.43 * RCFGBuilder took 196.58 ms. Allocated memory is still 661.7 MB. Free memory was 626.2 MB in the beginning and 611.8 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 50.3 GB. 12.24/6.43 * BlockEncodingV2 took 74.23 ms. Allocated memory is still 661.7 MB. Free memory was 611.8 MB in the beginning and 607.7 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 50.3 GB. 12.24/6.43 * TraceAbstraction took 153.62 ms. Allocated memory is still 661.7 MB. Free memory was 606.4 MB in the beginning and 598.3 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 50.3 GB. 12.24/6.43 * BuchiAutomizer took 1032.46 ms. Allocated memory is still 661.7 MB. Free memory was 598.3 MB in the beginning and 533.6 MB in the end (delta: 64.8 MB). Peak memory consumption was 64.8 MB. Max. memory is 50.3 GB. 12.24/6.43 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: 12.24/6.43 - AllSpecificationsHoldResult: All specifications hold 12.24/6.43 We were not able to verify any specifiation because the program does not contain any specification. 12.24/6.43 - InvariantResult [Line: 6]: Loop Invariant 12.24/6.43 Derived loop invariant: 1 12.24/6.43 - StatisticsResult: Ultimate Automizer benchmark data 12.24/6.43 CFG has 1 procedures, 2 locations, 0 error locations. SAFE Result, 0.0s OverallTime, 0 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 1 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available 12.24/6.43 - StatisticsResult: Constructed decomposition of program 12.24/6.43 Your program was decomposed into 1 terminating modules (0 trivial, 0 deterministic, 1 nondeterministic). One nondeterministic module has affine ranking function y + -1 * z and consists of 2 locations. 12.24/6.43 - StatisticsResult: Timing statistics 12.24/6.43 BüchiAutomizer plugin needed 1.0s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 3. Minimization of det autom 1. 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 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 2 SDtfs, 2 SDslu, 0 SDs, 0 SdLazy, 1 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital23 mio100 ax100 hnf100 lsp78 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq166 hnf93 smp100 dnf100 smp100 tf107 neg100 sie113 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 38ms VariablesStem: 0 VariablesLoop: 5 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s 12.24/6.43 - TerminationAnalysisResult: Termination proven 12.24/6.43 Buchi Automizer proved that your program is terminating 12.24/6.43 RESULT: Ultimate proved your program to be correct! 12.24/6.43 !SESSION 2019-03-28 12:05:28.760 ----------------------------------------------- 12.24/6.43 eclipse.buildId=unknown 12.24/6.43 java.version=1.8.0_181 12.24/6.43 java.vendor=Oracle Corporation 12.24/6.43 BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US 12.24/6.43 Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox/benchmark/theBenchmark.c 12.24/6.43 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 12.24/6.43 12.24/6.43 !ENTRY org.eclipse.core.resources 2 10035 2019-03-28 12:05:34.220 12.24/6.43 !MESSAGE The workspace will exit with unsaved changes in this session. 12.24/6.43 Received shutdown request... 12.24/6.43 Ultimate: 12.24/6.43 GTK+ Version Check 12.24/6.43 EOF