15.29/8.52 NO 15.29/8.52 15.29/8.52 Ultimate: Cannot open display: 15.29/8.52 This is Ultimate 0.1.24-8dc7c08-m 15.29/8.52 [2019-03-28 11:53:31,111 INFO L170 SettingsManager]: Resetting all preferences to default values... 15.29/8.52 [2019-03-28 11:53:31,113 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values 15.29/8.52 [2019-03-28 11:53:31,125 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 15.29/8.52 [2019-03-28 11:53:31,125 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values 15.29/8.52 [2019-03-28 11:53:31,126 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values 15.29/8.52 [2019-03-28 11:53:31,127 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values 15.29/8.52 [2019-03-28 11:53:31,129 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values 15.29/8.52 [2019-03-28 11:53:31,130 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values 15.29/8.52 [2019-03-28 11:53:31,131 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values 15.29/8.52 [2019-03-28 11:53:31,132 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 15.29/8.52 [2019-03-28 11:53:31,132 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values 15.29/8.52 [2019-03-28 11:53:31,133 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values 15.29/8.52 [2019-03-28 11:53:31,134 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values 15.29/8.52 [2019-03-28 11:53:31,135 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values 15.29/8.52 [2019-03-28 11:53:31,136 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values 15.29/8.52 [2019-03-28 11:53:31,137 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values 15.29/8.52 [2019-03-28 11:53:31,138 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values 15.29/8.52 [2019-03-28 11:53:31,140 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values 15.29/8.52 [2019-03-28 11:53:31,142 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values 15.29/8.52 [2019-03-28 11:53:31,143 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values 15.29/8.52 [2019-03-28 11:53:31,144 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values 15.29/8.52 [2019-03-28 11:53:31,146 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 15.29/8.52 [2019-03-28 11:53:31,146 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... 15.29/8.52 [2019-03-28 11:53:31,147 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values 15.29/8.52 [2019-03-28 11:53:31,147 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values 15.29/8.52 [2019-03-28 11:53:31,148 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values 15.29/8.52 [2019-03-28 11:53:31,149 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... 15.29/8.52 [2019-03-28 11:53:31,149 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values 15.29/8.52 [2019-03-28 11:53:31,149 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values 15.29/8.52 [2019-03-28 11:53:31,150 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values 15.29/8.52 [2019-03-28 11:53:31,151 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values 15.29/8.52 [2019-03-28 11:53:31,152 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... 15.29/8.52 [2019-03-28 11:53:31,152 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values 15.29/8.52 [2019-03-28 11:53:31,153 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 15.29/8.52 [2019-03-28 11:53:31,153 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... 15.29/8.52 [2019-03-28 11:53:31,153 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values 15.29/8.52 [2019-03-28 11:53:31,154 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values 15.29/8.52 [2019-03-28 11:53:31,155 INFO L181 SettingsManager]: Finished resetting all preferences to default values... 15.29/8.52 [2019-03-28 11:53:31,155 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf 15.29/8.52 [2019-03-28 11:53:31,169 INFO L110 SettingsManager]: Loading preferences was successful 15.29/8.52 [2019-03-28 11:53:31,170 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: 15.29/8.52 [2019-03-28 11:53:31,171 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: 15.29/8.52 [2019-03-28 11:53:31,171 INFO L133 SettingsManager]: * Rewrite not-equals=true 15.29/8.52 [2019-03-28 11:53:31,171 INFO L133 SettingsManager]: * Create parallel compositions if possible=false 15.29/8.52 [2019-03-28 11:53:31,171 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE 15.29/8.52 [2019-03-28 11:53:31,171 INFO L133 SettingsManager]: * Use SBE=true 15.29/8.52 [2019-03-28 11:53:31,172 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: 15.29/8.52 [2019-03-28 11:53:31,172 INFO L133 SettingsManager]: * Use old map elimination=false 15.29/8.52 [2019-03-28 11:53:31,172 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false 15.29/8.52 [2019-03-28 11:53:31,172 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION 15.29/8.52 [2019-03-28 11:53:31,172 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true 15.29/8.52 [2019-03-28 11:53:31,173 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES 15.29/8.52 [2019-03-28 11:53:31,173 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true 15.29/8.52 [2019-03-28 11:53:31,173 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 15.29/8.52 [2019-03-28 11:53:31,173 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: 15.29/8.52 [2019-03-28 11:53:31,173 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false 15.29/8.52 [2019-03-28 11:53:31,173 INFO L133 SettingsManager]: * Check division by zero=IGNORE 15.29/8.52 [2019-03-28 11:53:31,174 INFO L133 SettingsManager]: * Check if freed pointer was valid=false 15.29/8.52 [2019-03-28 11:53:31,174 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false 15.29/8.52 [2019-03-28 11:53:31,174 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE 15.29/8.52 [2019-03-28 11:53:31,174 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: 15.29/8.52 [2019-03-28 11:53:31,174 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements 15.29/8.52 [2019-03-28 11:53:31,174 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump 15.29/8.52 [2019-03-28 11:53:31,175 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 15.29/8.52 [2019-03-28 11:53:31,175 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: 15.29/8.52 [2019-03-28 11:53:31,175 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles 15.29/8.52 [2019-03-28 11:53:31,175 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL 15.29/8.52 [2019-03-28 11:53:31,175 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 15.29/8.52 [2019-03-28 11:53:31,202 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp 15.29/8.52 [2019-03-28 11:53:31,231 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized 15.29/8.52 [2019-03-28 11:53:31,235 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. 15.29/8.52 [2019-03-28 11:53:31,236 INFO L271 PluginConnector]: Initializing CDTParser... 15.29/8.52 [2019-03-28 11:53:31,237 INFO L276 PluginConnector]: CDTParser initialized 15.29/8.52 [2019-03-28 11:53:31,238 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c 15.29/8.52 [2019-03-28 11:53:31,301 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/82faf602287c4a6797abddf9f0a2f925/FLAG97d52240e 15.29/8.52 [2019-03-28 11:53:31,830 INFO L307 CDTParser]: Found 1 translation units. 15.29/8.52 [2019-03-28 11:53:31,831 INFO L161 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c 15.29/8.52 [2019-03-28 11:53:31,837 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/82faf602287c4a6797abddf9f0a2f925/FLAG97d52240e 15.29/8.52 [2019-03-28 11:53:32,240 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/82faf602287c4a6797abddf9f0a2f925 15.29/8.52 [2019-03-28 11:53:32,251 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### 15.29/8.52 [2019-03-28 11:53:32,253 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. 15.29/8.52 [2019-03-28 11:53:32,254 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- 15.29/8.52 [2019-03-28 11:53:32,254 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... 15.29/8.52 [2019-03-28 11:53:32,258 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized 15.29/8.52 [2019-03-28 11:53:32,259 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.03 11:53:32" (1/1) ... 15.29/8.52 [2019-03-28 11:53:32,262 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cb06f89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 11:53:32, skipping insertion in model container 15.29/8.52 [2019-03-28 11:53:32,262 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.03 11:53:32" (1/1) ... 15.29/8.52 [2019-03-28 11:53:32,270 INFO L145 MainTranslator]: Starting translation in SV-COMP mode 15.29/8.52 [2019-03-28 11:53:32,288 INFO L176 MainTranslator]: Built tables and reachable declarations 15.29/8.52 [2019-03-28 11:53:32,441 INFO L206 PostProcessor]: Analyzing one entry point: main 15.29/8.52 [2019-03-28 11:53:32,446 INFO L191 MainTranslator]: Completed pre-run 15.29/8.52 [2019-03-28 11:53:32,460 INFO L206 PostProcessor]: Analyzing one entry point: main 15.29/8.52 [2019-03-28 11:53:32,474 INFO L195 MainTranslator]: Completed translation 15.29/8.52 [2019-03-28 11:53:32,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 11:53:32 WrapperNode 15.29/8.52 [2019-03-28 11:53:32,475 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- 15.29/8.52 [2019-03-28 11:53:32,476 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- 15.29/8.52 [2019-03-28 11:53:32,476 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... 15.29/8.52 [2019-03-28 11:53:32,476 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized 15.29/8.52 [2019-03-28 11:53:32,542 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 11:53:32" (1/1) ... 15.29/8.52 [2019-03-28 11:53:32,549 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 11:53:32" (1/1) ... 15.29/8.52 [2019-03-28 11:53:32,568 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- 15.29/8.52 [2019-03-28 11:53:32,568 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- 15.29/8.52 [2019-03-28 11:53:32,568 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... 15.29/8.52 [2019-03-28 11:53:32,568 INFO L276 PluginConnector]: Boogie Preprocessor initialized 15.29/8.52 [2019-03-28 11:53:32,578 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 11:53:32" (1/1) ... 15.29/8.52 [2019-03-28 11:53:32,578 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 11:53:32" (1/1) ... 15.29/8.52 [2019-03-28 11:53:32,578 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 11:53:32" (1/1) ... 15.29/8.52 [2019-03-28 11:53:32,579 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 11:53:32" (1/1) ... 15.29/8.52 [2019-03-28 11:53:32,580 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 11:53:32" (1/1) ... 15.29/8.52 [2019-03-28 11:53:32,585 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 11:53:32" (1/1) ... 15.29/8.52 [2019-03-28 11:53:32,586 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 11:53:32" (1/1) ... 15.29/8.52 [2019-03-28 11:53:32,587 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- 15.29/8.52 [2019-03-28 11:53:32,587 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- 15.29/8.52 [2019-03-28 11:53:32,587 INFO L271 PluginConnector]: Initializing RCFGBuilder... 15.29/8.52 [2019-03-28 11:53:32,588 INFO L276 PluginConnector]: RCFGBuilder initialized 15.29/8.52 [2019-03-28 11:53:32,589 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 11:53:32" (1/1) ... 15.29/8.52 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 15.29/8.52 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) 15.29/8.52 Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 15.29/8.52 [2019-03-28 11:53:32,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start 15.29/8.52 [2019-03-28 11:53:32,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start 15.29/8.52 [2019-03-28 11:53:32,847 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) 15.29/8.52 [2019-03-28 11:53:32,847 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. 15.29/8.52 [2019-03-28 11:53:32,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 11:53:32 BoogieIcfgContainer 15.29/8.52 [2019-03-28 11:53:32,849 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- 15.29/8.52 [2019-03-28 11:53:32,849 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- 15.29/8.52 [2019-03-28 11:53:32,849 INFO L271 PluginConnector]: Initializing BlockEncodingV2... 15.29/8.52 [2019-03-28 11:53:32,851 INFO L276 PluginConnector]: BlockEncodingV2 initialized 15.29/8.52 [2019-03-28 11:53:32,852 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 11:53:32" (1/1) ... 15.29/8.52 [2019-03-28 11:53:32,866 INFO L313 BlockEncoder]: Initial Icfg 6 locations, 7 edges 15.29/8.52 [2019-03-28 11:53:32,868 INFO L258 BlockEncoder]: Using Remove infeasible edges 15.29/8.52 [2019-03-28 11:53:32,869 INFO L263 BlockEncoder]: Using Maximize final states 15.29/8.52 [2019-03-28 11:53:32,870 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false 15.29/8.52 [2019-03-28 11:53:32,870 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE 15.29/8.52 [2019-03-28 11:53:32,872 INFO L296 BlockEncoder]: Using Remove sink states 15.29/8.52 [2019-03-28 11:53:32,873 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true 15.29/8.52 [2019-03-28 11:53:32,873 INFO L179 BlockEncoder]: Using Rewrite not-equals 15.29/8.52 [2019-03-28 11:53:32,889 INFO L185 BlockEncoder]: Using Use SBE 15.29/8.52 [2019-03-28 11:53:32,905 INFO L200 BlockEncoder]: SBE split 1 edges 15.29/8.52 [2019-03-28 11:53:32,909 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility 15.29/8.52 [2019-03-28 11:53:32,911 INFO L71 MaximizeFinalStates]: 0 new accepting states 15.29/8.52 [2019-03-28 11:53:32,923 INFO L100 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding 15.29/8.52 [2019-03-28 11:53:32,925 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states 15.29/8.52 [2019-03-28 11:53:32,926 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility 15.29/8.52 [2019-03-28 11:53:32,927 INFO L71 MaximizeFinalStates]: 0 new accepting states 15.29/8.52 [2019-03-28 11:53:32,927 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding 15.29/8.52 [2019-03-28 11:53:32,927 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states 15.29/8.52 [2019-03-28 11:53:32,927 INFO L313 BlockEncoder]: Encoded RCFG 2 locations, 5 edges 15.29/8.52 [2019-03-28 11:53:32,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 28.03 11:53:32 BasicIcfg 15.29/8.52 [2019-03-28 11:53:32,928 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- 15.29/8.52 [2019-03-28 11:53:32,929 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- 15.29/8.52 [2019-03-28 11:53:32,929 INFO L271 PluginConnector]: Initializing TraceAbstraction... 15.29/8.52 [2019-03-28 11:53:32,932 INFO L276 PluginConnector]: TraceAbstraction initialized 15.29/8.52 [2019-03-28 11:53:32,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.03 11:53:32" (1/4) ... 15.29/8.52 [2019-03-28 11:53:32,933 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c541b4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.03 11:53:32, skipping insertion in model container 15.29/8.52 [2019-03-28 11:53:32,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 11:53:32" (2/4) ... 15.29/8.52 [2019-03-28 11:53:32,934 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c541b4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.03 11:53:32, skipping insertion in model container 15.29/8.52 [2019-03-28 11:53:32,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 11:53:32" (3/4) ... 15.29/8.52 [2019-03-28 11:53:32,934 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c541b4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.03 11:53:32, skipping insertion in model container 15.29/8.52 [2019-03-28 11:53:32,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 28.03 11:53:32" (4/4) ... 15.29/8.52 [2019-03-28 11:53:32,936 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 15.29/8.52 [2019-03-28 11:53:32,946 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION 15.29/8.52 [2019-03-28 11:53:32,953 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. 15.29/8.52 [2019-03-28 11:53:32,970 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. 15.29/8.52 [2019-03-28 11:53:32,998 INFO L133 ementStrategyFactory]: Using default assertion order modulation 15.29/8.52 [2019-03-28 11:53:32,998 INFO L382 AbstractCegarLoop]: Interprodecural is true 15.29/8.52 [2019-03-28 11:53:32,999 INFO L383 AbstractCegarLoop]: Hoare is true 15.29/8.52 [2019-03-28 11:53:32,999 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates 15.29/8.52 [2019-03-28 11:53:32,999 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE 15.29/8.52 [2019-03-28 11:53:32,999 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION 15.29/8.52 [2019-03-28 11:53:32,999 INFO L387 AbstractCegarLoop]: Difference is false 15.29/8.52 [2019-03-28 11:53:32,999 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA 15.29/8.52 [2019-03-28 11:53:32,999 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== 15.29/8.52 [2019-03-28 11:53:33,013 INFO L276 IsEmpty]: Start isEmpty. Operand 2 states. 15.29/8.52 [2019-03-28 11:53:33,019 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. 15.29/8.52 [2019-03-28 11:53:33,022 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 2 states. 15.29/8.52 [2019-03-28 11:53:33,071 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. 15.29/8.52 [2019-03-28 11:53:33,071 INFO L451 ceAbstractionStarter]: At program point L23-2(lines 23 26) the Hoare annotation is: true 15.29/8.52 [2019-03-28 11:53:33,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.03 11:53:33 BasicIcfg 15.29/8.52 [2019-03-28 11:53:33,079 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- 15.29/8.52 [2019-03-28 11:53:33,080 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- 15.29/8.52 [2019-03-28 11:53:33,080 INFO L271 PluginConnector]: Initializing BuchiAutomizer... 15.29/8.52 [2019-03-28 11:53:33,083 INFO L276 PluginConnector]: BuchiAutomizer initialized 15.29/8.52 [2019-03-28 11:53:33,084 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 15.29/8.52 [2019-03-28 11:53:33,084 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.03 11:53:32" (1/5) ... 15.29/8.52 [2019-03-28 11:53:33,085 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5db2ea5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.03 11:53:33, skipping insertion in model container 15.29/8.52 [2019-03-28 11:53:33,085 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 15.29/8.52 [2019-03-28 11:53:33,085 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 11:53:32" (2/5) ... 15.29/8.52 [2019-03-28 11:53:33,086 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5db2ea5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.03 11:53:33, skipping insertion in model container 15.29/8.52 [2019-03-28 11:53:33,086 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 15.29/8.52 [2019-03-28 11:53:33,086 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 11:53:32" (3/5) ... 15.29/8.52 [2019-03-28 11:53:33,086 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5db2ea5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.03 11:53:33, skipping insertion in model container 15.29/8.52 [2019-03-28 11:53:33,087 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 15.29/8.52 [2019-03-28 11:53:33,087 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 28.03 11:53:32" (4/5) ... 15.29/8.52 [2019-03-28 11:53:33,087 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5db2ea5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.03 11:53:33, skipping insertion in model container 15.29/8.52 [2019-03-28 11:53:33,087 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 15.29/8.52 [2019-03-28 11:53:33,087 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.03 11:53:33" (5/5) ... 15.29/8.52 [2019-03-28 11:53:33,089 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 15.29/8.52 [2019-03-28 11:53:33,115 INFO L133 ementStrategyFactory]: Using default assertion order modulation 15.29/8.52 [2019-03-28 11:53:33,115 INFO L374 BuchiCegarLoop]: Interprodecural is true 15.29/8.52 [2019-03-28 11:53:33,115 INFO L375 BuchiCegarLoop]: Hoare is true 15.29/8.52 [2019-03-28 11:53:33,116 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates 15.29/8.52 [2019-03-28 11:53:33,116 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE 15.29/8.52 [2019-03-28 11:53:33,116 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION 15.29/8.52 [2019-03-28 11:53:33,116 INFO L379 BuchiCegarLoop]: Difference is false 15.29/8.52 [2019-03-28 11:53:33,116 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA 15.29/8.52 [2019-03-28 11:53:33,116 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== 15.29/8.52 [2019-03-28 11:53:33,119 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2 states. 15.29/8.52 [2019-03-28 11:53:33,137 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 15.29/8.52 [2019-03-28 11:53:33,137 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 15.29/8.52 [2019-03-28 11:53:33,137 INFO L119 BuchiIsEmpty]: Starting construction of run 15.29/8.52 [2019-03-28 11:53:33,143 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] 15.29/8.52 [2019-03-28 11:53:33,143 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] 15.29/8.52 [2019-03-28 11:53:33,144 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ 15.29/8.52 [2019-03-28 11:53:33,144 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2 states. 15.29/8.52 [2019-03-28 11:53:33,144 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 15.29/8.52 [2019-03-28 11:53:33,144 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 15.29/8.52 [2019-03-28 11:53:33,145 INFO L119 BuchiIsEmpty]: Starting construction of run 15.29/8.52 [2019-03-28 11:53:33,145 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] 15.29/8.52 [2019-03-28 11:53:33,145 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] 15.29/8.52 [2019-03-28 11:53:33,150 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [21] ULTIMATE.startENTRY-->L23-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_2|} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 3#L23-2true 15.29/8.52 [2019-03-28 11:53:33,150 INFO L796 eck$LassoCheckResult]: Loop: 3#L23-2true [27] L23-2-->L23-2: Formula: (and (< 0 (mod v_ULTIMATE.start_main_~y~0_6 2)) (< v_ULTIMATE.start_main_~x~0_6 v_ULTIMATE.start_main_~y~0_6) (= v_ULTIMATE.start_main_~x~0_5 (+ v_ULTIMATE.start_main_~x~0_6 v_ULTIMATE.start_main_~y~0_6)) (= (+ (div v_ULTIMATE.start_main_~y~0_6 2) 1) v_ULTIMATE.start_main_~y~0_5) (< v_ULTIMATE.start_main_~y~0_6 0)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 3#L23-2true 15.29/8.52 [2019-03-28 11:53:33,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 15.29/8.52 [2019-03-28 11:53:33,157 INFO L82 PathProgramCache]: Analyzing trace with hash 52, now seen corresponding path program 1 times 15.29/8.52 [2019-03-28 11:53:33,159 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 15.29/8.52 [2019-03-28 11:53:33,159 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 15.29/8.52 [2019-03-28 11:53:33,179 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 15.29/8.52 [2019-03-28 11:53:33,179 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 15.29/8.52 [2019-03-28 11:53:33,180 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 15.29/8.52 [2019-03-28 11:53:33,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 15.29/8.52 [2019-03-28 11:53:33,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 15.29/8.52 [2019-03-28 11:53:33,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 15.29/8.52 [2019-03-28 11:53:33,220 INFO L82 PathProgramCache]: Analyzing trace with hash 58, now seen corresponding path program 1 times 15.29/8.52 [2019-03-28 11:53:33,220 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 15.29/8.52 [2019-03-28 11:53:33,220 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 15.29/8.52 [2019-03-28 11:53:33,221 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 15.29/8.52 [2019-03-28 11:53:33,221 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 15.29/8.52 [2019-03-28 11:53:33,222 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 15.29/8.52 [2019-03-28 11:53:33,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 15.29/8.52 [2019-03-28 11:53:33,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 15.29/8.52 [2019-03-28 11:53:33,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 15.29/8.52 [2019-03-28 11:53:33,244 INFO L82 PathProgramCache]: Analyzing trace with hash 1639, now seen corresponding path program 1 times 15.29/8.52 [2019-03-28 11:53:33,244 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 15.29/8.52 [2019-03-28 11:53:33,244 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 15.29/8.52 [2019-03-28 11:53:33,245 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 15.29/8.52 [2019-03-28 11:53:33,245 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 15.29/8.52 [2019-03-28 11:53:33,246 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 15.29/8.52 [2019-03-28 11:53:33,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 15.29/8.52 [2019-03-28 11:53:33,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 15.29/8.52 [2019-03-28 11:53:33,319 INFO L216 LassoAnalysis]: Preferences: 15.29/8.52 [2019-03-28 11:53:33,320 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 15.29/8.52 [2019-03-28 11:53:33,321 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 15.29/8.52 [2019-03-28 11:53:33,321 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 15.29/8.52 [2019-03-28 11:53:33,321 INFO L127 ssoRankerPreferences]: Use exernal solver: true 15.29/8.52 [2019-03-28 11:53:33,321 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 15.29/8.52 [2019-03-28 11:53:33,321 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 15.29/8.52 [2019-03-28 11:53:33,321 INFO L130 ssoRankerPreferences]: Path of dumped script: 15.29/8.52 [2019-03-28 11:53:33,322 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop 15.29/8.52 [2019-03-28 11:53:33,322 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 15.29/8.52 [2019-03-28 11:53:33,322 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 15.29/8.52 [2019-03-28 11:53:33,340 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 15.29/8.52 [2019-03-28 11:53:33,503 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 24 15.29/8.52 [2019-03-28 11:53:33,540 INFO L300 LassoAnalysis]: Preprocessing complete. 15.29/8.52 [2019-03-28 11:53:33,541 INFO L412 LassoAnalysis]: Checking for nontermination... 15.29/8.52 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 15.29/8.52 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 15.29/8.52 Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 15.29/8.52 [2019-03-28 11:53:33,546 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 15.29/8.52 [2019-03-28 11:53:33,546 INFO L163 nArgumentSynthesizer]: Using integer mode. 15.29/8.52 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 15.29/8.52 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 15.29/8.52 Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 15.29/8.52 [2019-03-28 11:53:33,582 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true 15.29/8.52 [2019-03-28 11:53:33,582 INFO L163 nArgumentSynthesizer]: Using integer mode. 15.29/8.52 [2019-03-28 11:53:33,707 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. 15.29/8.52 [2019-03-28 11:53:33,710 INFO L216 LassoAnalysis]: Preferences: 15.29/8.52 [2019-03-28 11:53:33,710 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 15.29/8.52 [2019-03-28 11:53:33,711 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 15.29/8.52 [2019-03-28 11:53:33,711 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 15.29/8.52 [2019-03-28 11:53:33,711 INFO L127 ssoRankerPreferences]: Use exernal solver: false 15.29/8.52 [2019-03-28 11:53:33,711 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 15.29/8.52 [2019-03-28 11:53:33,711 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 15.29/8.52 [2019-03-28 11:53:33,711 INFO L130 ssoRankerPreferences]: Path of dumped script: 15.29/8.52 [2019-03-28 11:53:33,711 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop 15.29/8.52 [2019-03-28 11:53:33,712 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 15.29/8.52 [2019-03-28 11:53:33,712 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 15.29/8.52 [2019-03-28 11:53:33,713 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 15.29/8.52 [2019-03-28 11:53:33,837 INFO L300 LassoAnalysis]: Preprocessing complete. 15.29/8.52 [2019-03-28 11:53:33,843 INFO L497 LassoAnalysis]: Using template 'affine'. 15.29/8.52 [2019-03-28 11:53:33,844 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 15.29/8.52 Termination analysis: LINEAR_WITH_GUESSES 15.29/8.52 Number of strict supporting invariants: 0 15.29/8.52 Number of non-strict supporting invariants: 1 15.29/8.52 Consider only non-deceasing supporting invariants: true 15.29/8.52 Simplify termination arguments: true 15.29/8.52 Simplify supporting invariants: trueOverapproximate stem: false 15.29/8.52 [2019-03-28 11:53:33,846 INFO L339 nArgumentSynthesizer]: Template has degree 0. 15.29/8.52 [2019-03-28 11:53:33,846 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 15.29/8.52 [2019-03-28 11:53:33,847 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 15.29/8.52 [2019-03-28 11:53:33,847 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 15.29/8.52 [2019-03-28 11:53:33,847 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 15.29/8.52 [2019-03-28 11:53:33,851 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 15.29/8.52 [2019-03-28 11:53:33,851 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 15.29/8.52 [2019-03-28 11:53:33,867 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. 15.29/8.52 [2019-03-28 11:53:33,881 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. 15.29/8.52 [2019-03-28 11:53:33,881 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 2 variables to zero. 15.29/8.52 [2019-03-28 11:53:33,883 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... 15.29/8.52 [2019-03-28 11:53:33,883 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. 15.29/8.52 [2019-03-28 11:53:33,884 INFO L518 LassoAnalysis]: Proved termination. 15.29/8.52 [2019-03-28 11:53:33,884 INFO L520 LassoAnalysis]: Termination argument consisting of: 15.29/8.52 Ranking function f(ULTIMATE.start_main_~y~0) = -1*ULTIMATE.start_main_~y~0 15.29/8.52 Supporting invariants [] 15.29/8.52 [2019-03-28 11:53:33,886 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed 15.29/8.52 [2019-03-28 11:53:33,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 15.29/8.52 [2019-03-28 11:53:33,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 15.29/8.52 [2019-03-28 11:53:33,920 INFO L256 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core 15.29/8.52 [2019-03-28 11:53:33,922 INFO L279 TraceCheckSpWp]: Computing forward predicates... 15.29/8.52 [2019-03-28 11:53:33,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 15.29/8.52 [2019-03-28 11:53:33,932 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core 15.29/8.52 [2019-03-28 11:53:33,932 INFO L279 TraceCheckSpWp]: Computing forward predicates... 15.29/8.52 [2019-03-28 11:53:33,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. 15.29/8.52 [2019-03-28 11:53:33,945 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization 15.29/8.52 [2019-03-28 11:53:33,950 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 15.29/8.52 [2019-03-28 11:53:33,951 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 2 states. Second operand 2 states. 15.29/8.52 [2019-03-28 11:53:33,987 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 2 states.. Second operand 2 states. Result 7 states and 25 transitions. Complement of second has 3 states. 15.29/8.52 [2019-03-28 11:53:33,988 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 0 non-accepting loop states 1 accepting loop states 15.29/8.52 [2019-03-28 11:53:33,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. 15.29/8.52 [2019-03-28 11:53:33,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. 15.29/8.52 [2019-03-28 11:53:33,992 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 1 letters. Loop has 1 letters. 15.29/8.52 [2019-03-28 11:53:33,994 INFO L116 BuchiAccepts]: Finished buchiAccepts. 15.29/8.52 [2019-03-28 11:53:33,994 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 2 letters. Loop has 1 letters. 15.29/8.52 [2019-03-28 11:53:33,994 INFO L116 BuchiAccepts]: Finished buchiAccepts. 15.29/8.52 [2019-03-28 11:53:33,994 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 1 letters. Loop has 2 letters. 15.29/8.52 [2019-03-28 11:53:33,994 INFO L116 BuchiAccepts]: Finished buchiAccepts. 15.29/8.52 [2019-03-28 11:53:34,000 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7 states and 25 transitions. 15.29/8.52 [2019-03-28 11:53:34,001 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 15.29/8.52 [2019-03-28 11:53:34,006 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7 states to 5 states and 13 transitions. 15.29/8.52 [2019-03-28 11:53:34,007 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 15.29/8.52 [2019-03-28 11:53:34,007 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 15.29/8.52 [2019-03-28 11:53:34,008 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 13 transitions. 15.29/8.52 [2019-03-28 11:53:34,008 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. 15.29/8.52 [2019-03-28 11:53:34,009 INFO L706 BuchiCegarLoop]: Abstraction has 5 states and 13 transitions. 15.29/8.52 [2019-03-28 11:53:34,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states and 13 transitions. 15.29/8.52 [2019-03-28 11:53:34,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 4. 15.29/8.52 [2019-03-28 11:53:34,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. 15.29/8.52 [2019-03-28 11:53:34,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. 15.29/8.52 [2019-03-28 11:53:34,038 INFO L729 BuchiCegarLoop]: Abstraction has 4 states and 10 transitions. 15.29/8.52 [2019-03-28 11:53:34,038 INFO L609 BuchiCegarLoop]: Abstraction has 4 states and 10 transitions. 15.29/8.52 [2019-03-28 11:53:34,039 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ 15.29/8.52 [2019-03-28 11:53:34,039 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states and 10 transitions. 15.29/8.52 [2019-03-28 11:53:34,039 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 15.29/8.52 [2019-03-28 11:53:34,039 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 15.29/8.52 [2019-03-28 11:53:34,039 INFO L119 BuchiIsEmpty]: Starting construction of run 15.29/8.52 [2019-03-28 11:53:34,040 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] 15.29/8.52 [2019-03-28 11:53:34,040 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] 15.29/8.52 [2019-03-28 11:53:34,041 INFO L794 eck$LassoCheckResult]: Stem: 37#ULTIMATE.startENTRY [21] ULTIMATE.startENTRY-->L23-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_2|} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 38#L23-2 [30] L23-2-->L23-2: Formula: (and (= (div v_ULTIMATE.start_main_~y~0_6 2) v_ULTIMATE.start_main_~y~0_5) (< v_ULTIMATE.start_main_~x~0_6 v_ULTIMATE.start_main_~y~0_6) (= v_ULTIMATE.start_main_~x~0_5 (+ v_ULTIMATE.start_main_~x~0_6 v_ULTIMATE.start_main_~y~0_6)) (= 0 (mod v_ULTIMATE.start_main_~y~0_6 2))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 35#L23-2 15.29/8.52 [2019-03-28 11:53:34,041 INFO L796 eck$LassoCheckResult]: Loop: 35#L23-2 [27] L23-2-->L23-2: Formula: (and (< 0 (mod v_ULTIMATE.start_main_~y~0_6 2)) (< v_ULTIMATE.start_main_~x~0_6 v_ULTIMATE.start_main_~y~0_6) (= v_ULTIMATE.start_main_~x~0_5 (+ v_ULTIMATE.start_main_~x~0_6 v_ULTIMATE.start_main_~y~0_6)) (= (+ (div v_ULTIMATE.start_main_~y~0_6 2) 1) v_ULTIMATE.start_main_~y~0_5) (< v_ULTIMATE.start_main_~y~0_6 0)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 35#L23-2 15.29/8.52 [2019-03-28 11:53:34,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 15.29/8.52 [2019-03-28 11:53:34,041 INFO L82 PathProgramCache]: Analyzing trace with hash 1642, now seen corresponding path program 1 times 15.29/8.52 [2019-03-28 11:53:34,041 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 15.29/8.52 [2019-03-28 11:53:34,041 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 15.29/8.52 [2019-03-28 11:53:34,042 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 15.29/8.52 [2019-03-28 11:53:34,043 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 15.29/8.52 [2019-03-28 11:53:34,043 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 15.29/8.52 [2019-03-28 11:53:34,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 15.29/8.52 [2019-03-28 11:53:34,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 15.29/8.52 [2019-03-28 11:53:34,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 15.29/8.52 [2019-03-28 11:53:34,052 INFO L82 PathProgramCache]: Analyzing trace with hash 58, now seen corresponding path program 2 times 15.29/8.52 [2019-03-28 11:53:34,052 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 15.29/8.52 [2019-03-28 11:53:34,052 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 15.29/8.52 [2019-03-28 11:53:34,053 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 15.29/8.52 [2019-03-28 11:53:34,053 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 15.29/8.52 [2019-03-28 11:53:34,053 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 15.29/8.52 [2019-03-28 11:53:34,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 15.29/8.52 [2019-03-28 11:53:34,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 15.29/8.52 [2019-03-28 11:53:34,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 15.29/8.52 [2019-03-28 11:53:34,060 INFO L82 PathProgramCache]: Analyzing trace with hash 50929, now seen corresponding path program 1 times 15.29/8.52 [2019-03-28 11:53:34,061 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 15.29/8.52 [2019-03-28 11:53:34,061 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 15.29/8.52 [2019-03-28 11:53:34,062 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 15.29/8.52 [2019-03-28 11:53:34,062 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY 15.29/8.52 [2019-03-28 11:53:34,062 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 15.29/8.52 [2019-03-28 11:53:34,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 15.29/8.52 [2019-03-28 11:53:34,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 15.29/8.52 [2019-03-28 11:53:34,102 INFO L216 LassoAnalysis]: Preferences: 15.29/8.52 [2019-03-28 11:53:34,102 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 15.29/8.52 [2019-03-28 11:53:34,102 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 15.29/8.52 [2019-03-28 11:53:34,102 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 15.29/8.52 [2019-03-28 11:53:34,103 INFO L127 ssoRankerPreferences]: Use exernal solver: true 15.29/8.52 [2019-03-28 11:53:34,103 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 15.29/8.52 [2019-03-28 11:53:34,103 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 15.29/8.52 [2019-03-28 11:53:34,103 INFO L130 ssoRankerPreferences]: Path of dumped script: 15.29/8.52 [2019-03-28 11:53:34,103 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop 15.29/8.52 [2019-03-28 11:53:34,103 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 15.29/8.52 [2019-03-28 11:53:34,103 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 15.29/8.52 [2019-03-28 11:53:34,105 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 15.29/8.52 [2019-03-28 11:53:34,200 INFO L300 LassoAnalysis]: Preprocessing complete. 15.29/8.52 [2019-03-28 11:53:34,200 INFO L412 LassoAnalysis]: Checking for nontermination... 15.29/8.52 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 15.29/8.52 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 15.29/8.52 Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 15.29/8.52 [2019-03-28 11:53:34,203 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 15.29/8.52 [2019-03-28 11:53:34,203 INFO L163 nArgumentSynthesizer]: Using integer mode. 15.29/8.52 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 15.29/8.52 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 15.29/8.52 Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 15.29/8.52 [2019-03-28 11:53:34,237 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true 15.29/8.52 [2019-03-28 11:53:34,237 INFO L163 nArgumentSynthesizer]: Using integer mode. 15.29/8.52 [2019-03-28 11:53:34,367 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. 15.29/8.52 [2019-03-28 11:53:34,370 INFO L216 LassoAnalysis]: Preferences: 15.29/8.52 [2019-03-28 11:53:34,370 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 15.29/8.52 [2019-03-28 11:53:34,370 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 15.29/8.52 [2019-03-28 11:53:34,370 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 15.29/8.52 [2019-03-28 11:53:34,370 INFO L127 ssoRankerPreferences]: Use exernal solver: false 15.29/8.52 [2019-03-28 11:53:34,371 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 15.29/8.52 [2019-03-28 11:53:34,371 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 15.29/8.52 [2019-03-28 11:53:34,371 INFO L130 ssoRankerPreferences]: Path of dumped script: 15.29/8.52 [2019-03-28 11:53:34,371 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop 15.29/8.52 [2019-03-28 11:53:34,371 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 15.29/8.52 [2019-03-28 11:53:34,371 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 15.29/8.52 [2019-03-28 11:53:34,372 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 15.29/8.52 [2019-03-28 11:53:34,461 INFO L300 LassoAnalysis]: Preprocessing complete. 15.29/8.52 [2019-03-28 11:53:34,462 INFO L497 LassoAnalysis]: Using template 'affine'. 15.29/8.52 [2019-03-28 11:53:34,462 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 15.29/8.52 Termination analysis: LINEAR_WITH_GUESSES 15.29/8.52 Number of strict supporting invariants: 0 15.29/8.52 Number of non-strict supporting invariants: 1 15.29/8.52 Consider only non-deceasing supporting invariants: true 15.29/8.52 Simplify termination arguments: true 15.29/8.52 Simplify supporting invariants: trueOverapproximate stem: false 15.29/8.52 [2019-03-28 11:53:34,463 INFO L339 nArgumentSynthesizer]: Template has degree 0. 15.29/8.52 [2019-03-28 11:53:34,463 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 15.29/8.52 [2019-03-28 11:53:34,463 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 15.29/8.52 [2019-03-28 11:53:34,464 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 15.29/8.52 [2019-03-28 11:53:34,464 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 15.29/8.52 [2019-03-28 11:53:34,465 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 15.29/8.52 [2019-03-28 11:53:34,466 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 15.29/8.52 [2019-03-28 11:53:34,475 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. 15.29/8.52 [2019-03-28 11:53:34,481 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. 15.29/8.52 [2019-03-28 11:53:34,482 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. 15.29/8.52 [2019-03-28 11:53:34,482 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... 15.29/8.52 [2019-03-28 11:53:34,482 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. 15.29/8.52 [2019-03-28 11:53:34,482 INFO L518 LassoAnalysis]: Proved termination. 15.29/8.52 [2019-03-28 11:53:34,483 INFO L520 LassoAnalysis]: Termination argument consisting of: 15.29/8.52 Ranking function f(ULTIMATE.start_main_~y~0) = -1*ULTIMATE.start_main_~y~0 15.29/8.52 Supporting invariants [] 15.29/8.52 [2019-03-28 11:53:34,483 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed 15.29/8.52 [2019-03-28 11:53:34,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 15.29/8.52 [2019-03-28 11:53:34,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 15.29/8.52 [2019-03-28 11:53:34,518 INFO L256 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core 15.29/8.52 [2019-03-28 11:53:34,518 INFO L279 TraceCheckSpWp]: Computing forward predicates... 15.29/8.52 [2019-03-28 11:53:34,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 15.29/8.52 [2019-03-28 11:53:34,526 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core 15.29/8.52 [2019-03-28 11:53:34,527 INFO L279 TraceCheckSpWp]: Computing forward predicates... 15.29/8.52 [2019-03-28 11:53:34,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. 15.29/8.52 [2019-03-28 11:53:34,527 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization 15.29/8.52 [2019-03-28 11:53:34,527 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 15.29/8.52 [2019-03-28 11:53:34,528 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 4 states and 10 transitions. cyclomatic complexity: 8 Second operand 2 states. 15.29/8.52 [2019-03-28 11:53:34,546 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 4 states and 10 transitions. cyclomatic complexity: 8. Second operand 2 states. Result 8 states and 22 transitions. Complement of second has 3 states. 15.29/8.52 [2019-03-28 11:53:34,546 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 15.29/8.52 [2019-03-28 11:53:34,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. 15.29/8.52 [2019-03-28 11:53:34,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 6 transitions. 15.29/8.52 [2019-03-28 11:53:34,547 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 6 transitions. Stem has 2 letters. Loop has 1 letters. 15.29/8.52 [2019-03-28 11:53:34,548 INFO L116 BuchiAccepts]: Finished buchiAccepts. 15.29/8.52 [2019-03-28 11:53:34,548 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 6 transitions. Stem has 3 letters. Loop has 1 letters. 15.29/8.52 [2019-03-28 11:53:34,548 INFO L116 BuchiAccepts]: Finished buchiAccepts. 15.29/8.52 [2019-03-28 11:53:34,548 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 6 transitions. Stem has 2 letters. Loop has 2 letters. 15.29/8.52 [2019-03-28 11:53:34,548 INFO L116 BuchiAccepts]: Finished buchiAccepts. 15.29/8.52 [2019-03-28 11:53:34,549 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 22 transitions. 15.29/8.52 [2019-03-28 11:53:34,550 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 15.29/8.52 [2019-03-28 11:53:34,551 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 8 states and 22 transitions. 15.29/8.52 [2019-03-28 11:53:34,551 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 15.29/8.52 [2019-03-28 11:53:34,551 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 15.29/8.52 [2019-03-28 11:53:34,551 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 22 transitions. 15.29/8.52 [2019-03-28 11:53:34,552 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. 15.29/8.52 [2019-03-28 11:53:34,552 INFO L706 BuchiCegarLoop]: Abstraction has 8 states and 22 transitions. 15.29/8.52 [2019-03-28 11:53:34,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 22 transitions. 15.29/8.52 [2019-03-28 11:53:34,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. 15.29/8.52 [2019-03-28 11:53:34,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. 15.29/8.52 [2019-03-28 11:53:34,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 19 transitions. 15.29/8.52 [2019-03-28 11:53:34,554 INFO L729 BuchiCegarLoop]: Abstraction has 7 states and 19 transitions. 15.29/8.52 [2019-03-28 11:53:34,554 INFO L609 BuchiCegarLoop]: Abstraction has 7 states and 19 transitions. 15.29/8.52 [2019-03-28 11:53:34,554 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ 15.29/8.52 [2019-03-28 11:53:34,554 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 19 transitions. 15.29/8.52 [2019-03-28 11:53:34,555 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 15.29/8.52 [2019-03-28 11:53:34,555 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 15.29/8.52 [2019-03-28 11:53:34,555 INFO L119 BuchiIsEmpty]: Starting construction of run 15.29/8.52 [2019-03-28 11:53:34,556 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] 15.29/8.52 [2019-03-28 11:53:34,556 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] 15.29/8.52 [2019-03-28 11:53:34,556 INFO L794 eck$LassoCheckResult]: Stem: 77#ULTIMATE.startENTRY [21] ULTIMATE.startENTRY-->L23-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_2|} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 78#L23-2 [29] L23-2-->L23-2: Formula: (and (= (div v_ULTIMATE.start_main_~y~0_6 2) v_ULTIMATE.start_main_~y~0_5) (>= v_ULTIMATE.start_main_~y~0_6 0) (< v_ULTIMATE.start_main_~x~0_6 v_ULTIMATE.start_main_~y~0_6) (= v_ULTIMATE.start_main_~x~0_5 (+ v_ULTIMATE.start_main_~x~0_6 v_ULTIMATE.start_main_~y~0_6))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 73#L23-2 15.29/8.52 [2019-03-28 11:53:34,556 INFO L796 eck$LassoCheckResult]: Loop: 73#L23-2 [27] L23-2-->L23-2: Formula: (and (< 0 (mod v_ULTIMATE.start_main_~y~0_6 2)) (< v_ULTIMATE.start_main_~x~0_6 v_ULTIMATE.start_main_~y~0_6) (= v_ULTIMATE.start_main_~x~0_5 (+ v_ULTIMATE.start_main_~x~0_6 v_ULTIMATE.start_main_~y~0_6)) (= (+ (div v_ULTIMATE.start_main_~y~0_6 2) 1) v_ULTIMATE.start_main_~y~0_5) (< v_ULTIMATE.start_main_~y~0_6 0)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 73#L23-2 15.29/8.52 [2019-03-28 11:53:34,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 15.29/8.52 [2019-03-28 11:53:34,557 INFO L82 PathProgramCache]: Analyzing trace with hash 1641, now seen corresponding path program 1 times 15.29/8.52 [2019-03-28 11:53:34,557 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 15.29/8.52 [2019-03-28 11:53:34,557 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 15.29/8.52 [2019-03-28 11:53:34,558 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 15.29/8.52 [2019-03-28 11:53:34,558 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 15.29/8.52 [2019-03-28 11:53:34,558 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 15.29/8.52 [2019-03-28 11:53:34,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 15.29/8.52 [2019-03-28 11:53:34,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 15.29/8.52 [2019-03-28 11:53:34,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 15.29/8.52 [2019-03-28 11:53:34,568 INFO L82 PathProgramCache]: Analyzing trace with hash 58, now seen corresponding path program 3 times 15.29/8.52 [2019-03-28 11:53:34,568 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 15.29/8.52 [2019-03-28 11:53:34,568 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 15.29/8.52 [2019-03-28 11:53:34,569 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 15.29/8.52 [2019-03-28 11:53:34,569 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 15.29/8.52 [2019-03-28 11:53:34,569 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 15.29/8.52 [2019-03-28 11:53:34,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 15.29/8.52 [2019-03-28 11:53:34,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 15.29/8.52 [2019-03-28 11:53:34,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 15.29/8.52 [2019-03-28 11:53:34,575 INFO L82 PathProgramCache]: Analyzing trace with hash 50898, now seen corresponding path program 1 times 15.29/8.52 [2019-03-28 11:53:34,576 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 15.29/8.52 [2019-03-28 11:53:34,576 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 15.29/8.52 [2019-03-28 11:53:34,576 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 15.29/8.52 [2019-03-28 11:53:34,577 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY 15.29/8.52 [2019-03-28 11:53:34,577 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 15.29/8.52 [2019-03-28 11:53:34,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 15.29/8.52 [2019-03-28 11:53:34,616 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. 15.29/8.52 [2019-03-28 11:53:34,619 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. 15.29/8.52 [2019-03-28 11:53:34,619 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 15.29/8.52 [2019-03-28 11:53:34,643 INFO L216 LassoAnalysis]: Preferences: 15.29/8.52 [2019-03-28 11:53:34,643 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 15.29/8.52 [2019-03-28 11:53:34,644 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 15.29/8.52 [2019-03-28 11:53:34,644 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 15.29/8.52 [2019-03-28 11:53:34,644 INFO L127 ssoRankerPreferences]: Use exernal solver: true 15.29/8.52 [2019-03-28 11:53:34,644 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 15.29/8.52 [2019-03-28 11:53:34,644 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 15.29/8.52 [2019-03-28 11:53:34,644 INFO L130 ssoRankerPreferences]: Path of dumped script: 15.29/8.52 [2019-03-28 11:53:34,645 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop 15.29/8.52 [2019-03-28 11:53:34,645 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 15.29/8.52 [2019-03-28 11:53:34,645 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 15.29/8.52 [2019-03-28 11:53:34,646 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 15.29/8.52 [2019-03-28 11:53:34,741 INFO L300 LassoAnalysis]: Preprocessing complete. 15.29/8.52 [2019-03-28 11:53:34,741 INFO L412 LassoAnalysis]: Checking for nontermination... 15.29/8.52 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 15.29/8.52 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 15.29/8.52 Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 15.29/8.52 [2019-03-28 11:53:34,749 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 15.29/8.52 [2019-03-28 11:53:34,750 INFO L163 nArgumentSynthesizer]: Using integer mode. 15.29/8.52 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 15.29/8.52 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 15.29/8.52 Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 15.29/8.52 [2019-03-28 11:53:34,787 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true 15.29/8.52 [2019-03-28 11:53:34,788 INFO L163 nArgumentSynthesizer]: Using integer mode. 15.29/8.52 [2019-03-28 11:53:34,917 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. 15.29/8.52 [2019-03-28 11:53:34,920 INFO L216 LassoAnalysis]: Preferences: 15.29/8.52 [2019-03-28 11:53:34,920 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 15.29/8.52 [2019-03-28 11:53:34,920 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 15.29/8.52 [2019-03-28 11:53:34,921 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 15.29/8.52 [2019-03-28 11:53:34,921 INFO L127 ssoRankerPreferences]: Use exernal solver: false 15.29/8.52 [2019-03-28 11:53:34,921 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 15.29/8.52 [2019-03-28 11:53:34,921 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 15.29/8.52 [2019-03-28 11:53:34,921 INFO L130 ssoRankerPreferences]: Path of dumped script: 15.29/8.52 [2019-03-28 11:53:34,921 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop 15.29/8.52 [2019-03-28 11:53:34,921 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 15.29/8.52 [2019-03-28 11:53:34,922 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 15.29/8.52 [2019-03-28 11:53:34,923 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 15.29/8.52 [2019-03-28 11:53:35,001 INFO L300 LassoAnalysis]: Preprocessing complete. 15.29/8.52 [2019-03-28 11:53:35,002 INFO L497 LassoAnalysis]: Using template 'affine'. 15.29/8.52 [2019-03-28 11:53:35,002 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 15.29/8.52 Termination analysis: LINEAR_WITH_GUESSES 15.29/8.52 Number of strict supporting invariants: 0 15.29/8.52 Number of non-strict supporting invariants: 1 15.29/8.52 Consider only non-deceasing supporting invariants: true 15.29/8.52 Simplify termination arguments: true 15.29/8.52 Simplify supporting invariants: trueOverapproximate stem: false 15.29/8.52 [2019-03-28 11:53:35,003 INFO L339 nArgumentSynthesizer]: Template has degree 0. 15.29/8.52 [2019-03-28 11:53:35,003 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 15.29/8.52 [2019-03-28 11:53:35,003 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 15.29/8.52 [2019-03-28 11:53:35,004 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 15.29/8.52 [2019-03-28 11:53:35,004 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 15.29/8.52 [2019-03-28 11:53:35,005 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 15.29/8.52 [2019-03-28 11:53:35,005 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 15.29/8.52 [2019-03-28 11:53:35,012 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. 15.29/8.52 [2019-03-28 11:53:35,016 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. 15.29/8.52 [2019-03-28 11:53:35,016 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. 15.29/8.52 [2019-03-28 11:53:35,016 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... 15.29/8.52 [2019-03-28 11:53:35,017 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. 15.29/8.52 [2019-03-28 11:53:35,017 INFO L518 LassoAnalysis]: Proved termination. 15.29/8.52 [2019-03-28 11:53:35,017 INFO L520 LassoAnalysis]: Termination argument consisting of: 15.29/8.52 Ranking function f(ULTIMATE.start_main_~y~0) = -1*ULTIMATE.start_main_~y~0 15.29/8.52 Supporting invariants [] 15.29/8.52 [2019-03-28 11:53:35,017 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed 15.29/8.52 [2019-03-28 11:53:35,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 15.29/8.52 [2019-03-28 11:53:35,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 15.29/8.52 [2019-03-28 11:53:35,042 INFO L256 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core 15.29/8.52 [2019-03-28 11:53:35,043 INFO L279 TraceCheckSpWp]: Computing forward predicates... 15.29/8.52 [2019-03-28 11:53:35,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 15.29/8.52 [2019-03-28 11:53:35,047 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core 15.29/8.52 [2019-03-28 11:53:35,047 INFO L279 TraceCheckSpWp]: Computing forward predicates... 15.29/8.52 [2019-03-28 11:53:35,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. 15.29/8.52 [2019-03-28 11:53:35,048 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization 15.29/8.52 [2019-03-28 11:53:35,048 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 15.29/8.52 [2019-03-28 11:53:35,048 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 7 states and 19 transitions. cyclomatic complexity: 14 Second operand 2 states. 15.29/8.52 [2019-03-28 11:53:35,066 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 7 states and 19 transitions. cyclomatic complexity: 14. Second operand 2 states. Result 10 states and 28 transitions. Complement of second has 3 states. 15.29/8.52 [2019-03-28 11:53:35,067 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 15.29/8.52 [2019-03-28 11:53:35,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. 15.29/8.52 [2019-03-28 11:53:35,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 6 transitions. 15.29/8.52 [2019-03-28 11:53:35,067 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 6 transitions. Stem has 2 letters. Loop has 1 letters. 15.29/8.52 [2019-03-28 11:53:35,068 INFO L116 BuchiAccepts]: Finished buchiAccepts. 15.29/8.52 [2019-03-28 11:53:35,068 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 6 transitions. Stem has 3 letters. Loop has 1 letters. 15.29/8.52 [2019-03-28 11:53:35,069 INFO L116 BuchiAccepts]: Finished buchiAccepts. 15.29/8.52 [2019-03-28 11:53:35,069 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 6 transitions. Stem has 2 letters. Loop has 2 letters. 15.29/8.52 [2019-03-28 11:53:35,069 INFO L116 BuchiAccepts]: Finished buchiAccepts. 15.29/8.52 [2019-03-28 11:53:35,070 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 28 transitions. 15.29/8.52 [2019-03-28 11:53:35,071 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 15.29/8.52 [2019-03-28 11:53:35,071 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 10 states and 28 transitions. 15.29/8.52 [2019-03-28 11:53:35,072 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 15.29/8.52 [2019-03-28 11:53:35,072 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 15.29/8.52 [2019-03-28 11:53:35,072 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 28 transitions. 15.29/8.52 [2019-03-28 11:53:35,072 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. 15.29/8.52 [2019-03-28 11:53:35,072 INFO L706 BuchiCegarLoop]: Abstraction has 10 states and 28 transitions. 15.29/8.52 [2019-03-28 11:53:35,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 28 transitions. 15.29/8.52 [2019-03-28 11:53:35,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. 15.29/8.52 [2019-03-28 11:53:35,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. 15.29/8.52 [2019-03-28 11:53:35,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 25 transitions. 15.29/8.52 [2019-03-28 11:53:35,074 INFO L729 BuchiCegarLoop]: Abstraction has 9 states and 25 transitions. 15.29/8.52 [2019-03-28 11:53:35,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. 15.29/8.52 [2019-03-28 11:53:35,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 15.29/8.52 [2019-03-28 11:53:35,078 INFO L87 Difference]: Start difference. First operand 9 states and 25 transitions. Second operand 3 states. 15.29/8.52 [2019-03-28 11:53:35,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. 15.29/8.52 [2019-03-28 11:53:35,095 INFO L93 Difference]: Finished difference Result 11 states and 26 transitions. 15.29/8.52 [2019-03-28 11:53:35,095 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 15.29/8.52 [2019-03-28 11:53:35,096 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 26 transitions. 15.29/8.52 [2019-03-28 11:53:35,097 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 15.29/8.52 [2019-03-28 11:53:35,098 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 11 states and 26 transitions. 15.29/8.52 [2019-03-28 11:53:35,098 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 15.29/8.52 [2019-03-28 11:53:35,099 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 15.29/8.52 [2019-03-28 11:53:35,099 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 26 transitions. 15.29/8.52 [2019-03-28 11:53:35,099 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. 15.29/8.52 [2019-03-28 11:53:35,099 INFO L706 BuchiCegarLoop]: Abstraction has 11 states and 26 transitions. 15.29/8.52 [2019-03-28 11:53:35,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 26 transitions. 15.29/8.52 [2019-03-28 11:53:35,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 7. 15.29/8.52 [2019-03-28 11:53:35,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. 15.29/8.52 [2019-03-28 11:53:35,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 18 transitions. 15.29/8.52 [2019-03-28 11:53:35,101 INFO L729 BuchiCegarLoop]: Abstraction has 7 states and 18 transitions. 15.29/8.52 [2019-03-28 11:53:35,101 INFO L609 BuchiCegarLoop]: Abstraction has 7 states and 18 transitions. 15.29/8.52 [2019-03-28 11:53:35,101 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ 15.29/8.52 [2019-03-28 11:53:35,101 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 18 transitions. 15.29/8.52 [2019-03-28 11:53:35,102 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 15.29/8.52 [2019-03-28 11:53:35,102 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 15.29/8.52 [2019-03-28 11:53:35,102 INFO L119 BuchiIsEmpty]: Starting construction of run 15.29/8.52 [2019-03-28 11:53:35,102 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] 15.29/8.52 [2019-03-28 11:53:35,102 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] 15.29/8.52 [2019-03-28 11:53:35,103 INFO L794 eck$LassoCheckResult]: Stem: 140#ULTIMATE.startENTRY [21] ULTIMATE.startENTRY-->L23-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_2|} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 141#L23-2 [29] L23-2-->L23-2: Formula: (and (= (div v_ULTIMATE.start_main_~y~0_6 2) v_ULTIMATE.start_main_~y~0_5) (>= v_ULTIMATE.start_main_~y~0_6 0) (< v_ULTIMATE.start_main_~x~0_6 v_ULTIMATE.start_main_~y~0_6) (= v_ULTIMATE.start_main_~x~0_5 (+ v_ULTIMATE.start_main_~x~0_6 v_ULTIMATE.start_main_~y~0_6))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 137#L23-2 15.29/8.52 [2019-03-28 11:53:35,103 INFO L796 eck$LassoCheckResult]: Loop: 137#L23-2 [29] L23-2-->L23-2: Formula: (and (= (div v_ULTIMATE.start_main_~y~0_6 2) v_ULTIMATE.start_main_~y~0_5) (>= v_ULTIMATE.start_main_~y~0_6 0) (< v_ULTIMATE.start_main_~x~0_6 v_ULTIMATE.start_main_~y~0_6) (= v_ULTIMATE.start_main_~x~0_5 (+ v_ULTIMATE.start_main_~x~0_6 v_ULTIMATE.start_main_~y~0_6))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 137#L23-2 15.29/8.52 [2019-03-28 11:53:35,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 15.29/8.52 [2019-03-28 11:53:35,103 INFO L82 PathProgramCache]: Analyzing trace with hash 1641, now seen corresponding path program 2 times 15.29/8.52 [2019-03-28 11:53:35,103 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 15.29/8.52 [2019-03-28 11:53:35,103 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 15.29/8.52 [2019-03-28 11:53:35,104 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 15.29/8.52 [2019-03-28 11:53:35,104 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 15.29/8.52 [2019-03-28 11:53:35,105 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 15.29/8.52 [2019-03-28 11:53:35,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 15.29/8.52 [2019-03-28 11:53:35,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 15.29/8.52 [2019-03-28 11:53:35,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 15.29/8.52 [2019-03-28 11:53:35,113 INFO L82 PathProgramCache]: Analyzing trace with hash 60, now seen corresponding path program 1 times 15.29/8.52 [2019-03-28 11:53:35,113 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 15.29/8.52 [2019-03-28 11:53:35,113 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 15.29/8.52 [2019-03-28 11:53:35,114 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 15.29/8.52 [2019-03-28 11:53:35,114 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY 15.29/8.52 [2019-03-28 11:53:35,114 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 15.29/8.52 [2019-03-28 11:53:35,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 15.29/8.52 [2019-03-28 11:53:35,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 15.29/8.52 [2019-03-28 11:53:35,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 15.29/8.52 [2019-03-28 11:53:35,119 INFO L82 PathProgramCache]: Analyzing trace with hash 50900, now seen corresponding path program 3 times 15.29/8.52 [2019-03-28 11:53:35,119 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 15.29/8.52 [2019-03-28 11:53:35,119 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 15.29/8.52 [2019-03-28 11:53:35,120 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 15.29/8.52 [2019-03-28 11:53:35,120 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 15.29/8.52 [2019-03-28 11:53:35,120 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 15.29/8.52 [2019-03-28 11:53:35,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 15.29/8.52 [2019-03-28 11:53:35,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 15.29/8.52 [2019-03-28 11:53:35,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.03 11:53:35 BasicIcfg 15.29/8.52 [2019-03-28 11:53:35,207 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- 15.29/8.52 [2019-03-28 11:53:35,208 INFO L168 Benchmark]: Toolchain (without parser) took 2956.18 ms. Allocated memory was 649.6 MB in the beginning and 675.8 MB in the end (delta: 26.2 MB). Free memory was 558.7 MB in the beginning and 402.9 MB in the end (delta: 155.9 MB). Peak memory consumption was 182.1 MB. Max. memory is 50.3 GB. 15.29/8.52 [2019-03-28 11:53:35,209 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 649.6 MB. Free memory is still 585.4 MB. There was no memory consumed. Max. memory is 50.3 GB. 15.29/8.52 [2019-03-28 11:53:35,209 INFO L168 Benchmark]: CACSL2BoogieTranslator took 221.14 ms. Allocated memory is still 649.6 MB. Free memory was 558.7 MB in the beginning and 547.9 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 50.3 GB. 15.29/8.52 [2019-03-28 11:53:35,210 INFO L168 Benchmark]: Boogie Procedure Inliner took 92.01 ms. Allocated memory was 649.6 MB in the beginning and 675.8 MB in the end (delta: 26.2 MB). Free memory was 547.9 MB in the beginning and 643.5 MB in the end (delta: -95.5 MB). Peak memory consumption was 20.3 MB. Max. memory is 50.3 GB. 15.29/8.52 [2019-03-28 11:53:35,211 INFO L168 Benchmark]: Boogie Preprocessor took 18.98 ms. Allocated memory is still 675.8 MB. Free memory was 643.5 MB in the beginning and 640.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 50.3 GB. 15.29/8.52 [2019-03-28 11:53:35,211 INFO L168 Benchmark]: RCFGBuilder took 261.60 ms. Allocated memory is still 675.8 MB. Free memory was 640.4 MB in the beginning and 627.4 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 50.3 GB. 15.29/8.52 [2019-03-28 11:53:35,212 INFO L168 Benchmark]: BlockEncodingV2 took 78.94 ms. Allocated memory is still 675.8 MB. Free memory was 627.4 MB in the beginning and 621.0 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 50.3 GB. 15.29/8.52 [2019-03-28 11:53:35,213 INFO L168 Benchmark]: TraceAbstraction took 150.55 ms. Allocated memory is still 675.8 MB. Free memory was 621.0 MB in the beginning and 612.9 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 50.3 GB. 15.29/8.52 [2019-03-28 11:53:35,213 INFO L168 Benchmark]: BuchiAutomizer took 2127.46 ms. Allocated memory is still 675.8 MB. Free memory was 611.5 MB in the beginning and 402.9 MB in the end (delta: 208.7 MB). Peak memory consumption was 208.7 MB. Max. memory is 50.3 GB. 15.29/8.52 [2019-03-28 11:53:35,218 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### 15.29/8.52 --- Results --- 15.29/8.52 * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: 15.29/8.52 - StatisticsResult: Initial Icfg 15.29/8.52 6 locations, 7 edges 15.29/8.52 - StatisticsResult: Encoded RCFG 15.29/8.52 2 locations, 5 edges 15.29/8.52 * Results from de.uni_freiburg.informatik.ultimate.core: 15.29/8.52 - StatisticsResult: Toolchain Benchmarks 15.29/8.52 Benchmark results are: 15.29/8.52 * CDTParser took 0.16 ms. Allocated memory is still 649.6 MB. Free memory is still 585.4 MB. There was no memory consumed. Max. memory is 50.3 GB. 15.29/8.52 * CACSL2BoogieTranslator took 221.14 ms. Allocated memory is still 649.6 MB. Free memory was 558.7 MB in the beginning and 547.9 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 50.3 GB. 15.29/8.52 * Boogie Procedure Inliner took 92.01 ms. Allocated memory was 649.6 MB in the beginning and 675.8 MB in the end (delta: 26.2 MB). Free memory was 547.9 MB in the beginning and 643.5 MB in the end (delta: -95.5 MB). Peak memory consumption was 20.3 MB. Max. memory is 50.3 GB. 15.29/8.52 * Boogie Preprocessor took 18.98 ms. Allocated memory is still 675.8 MB. Free memory was 643.5 MB in the beginning and 640.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 50.3 GB. 15.29/8.52 * RCFGBuilder took 261.60 ms. Allocated memory is still 675.8 MB. Free memory was 640.4 MB in the beginning and 627.4 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 50.3 GB. 15.29/8.52 * BlockEncodingV2 took 78.94 ms. Allocated memory is still 675.8 MB. Free memory was 627.4 MB in the beginning and 621.0 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 50.3 GB. 15.29/8.52 * TraceAbstraction took 150.55 ms. Allocated memory is still 675.8 MB. Free memory was 621.0 MB in the beginning and 612.9 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 50.3 GB. 15.29/8.52 * BuchiAutomizer took 2127.46 ms. Allocated memory is still 675.8 MB. Free memory was 611.5 MB in the beginning and 402.9 MB in the end (delta: 208.7 MB). Peak memory consumption was 208.7 MB. Max. memory is 50.3 GB. 15.29/8.52 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: 15.29/8.52 - AllSpecificationsHoldResult: All specifications hold 15.29/8.52 We were not able to verify any specifiation because the program does not contain any specification. 15.29/8.52 - InvariantResult [Line: 23]: Loop Invariant 15.29/8.52 Derived loop invariant: 1 15.29/8.52 - StatisticsResult: Ultimate Automizer benchmark data 15.29/8.52 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 15.29/8.52 - StatisticsResult: Constructed decomposition of program 15.29/8.52 Your program was decomposed into 4 terminating modules (1 trivial, 0 deterministic, 3 nondeterministic) and one nonterminating remainder module.One nondeterministic module has affine ranking function -1 * y and consists of 3 locations. One nondeterministic module has affine ranking function -1 * y and consists of 2 locations. One nondeterministic module has affine ranking function -1 * y and consists of 2 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 7 locations. 15.29/8.52 - StatisticsResult: Timing statistics 15.29/8.52 BüchiAutomizer plugin needed 2.0s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 1.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 7 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 7 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 4 SDtfs, 12 SDslu, 0 SDs, 0 SdLazy, 38 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT2 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital25 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div400 bol100 ite100 ukn100 eq127 hnf49 smp73 dnf100 smp100 tf104 neg100 sie112 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 40ms VariablesStem: 0 VariablesLoop: 6 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s 15.29/8.52 - TerminationAnalysisResult: Nontermination possible 15.29/8.52 Buchi Automizer proved that your program is nonterminating for some inputs 15.29/8.52 - FixpointNonTerminationResult [Line: 23]: Nontermination argument in form of an infinite program execution. 15.29/8.52 Nontermination argument in form of an infinite execution 15.29/8.52 State at position 0 is 15.29/8.52 {} 15.29/8.52 State at position 1 is 15.29/8.52 {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4966d833=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2f7d7bd1=0, x=-1, y=0} 15.29/8.52 - StatisticsResult: NonterminationArgumentStatistics 15.29/8.52 Fixpoint 15.29/8.52 - NonterminatingLassoResult [Line: 23]: Nonterminating execution 15.29/8.52 Found a nonterminating execution for the following lasso shaped sequence of statements. 15.29/8.52 Stem: 15.29/8.52 [L21] int x = __VERIFIER_nondet_int(); 15.29/8.52 [L22] int y = __VERIFIER_nondet_int(); 15.29/8.52 [L23] COND TRUE x < y 15.29/8.52 [L24] x = x + y 15.29/8.52 [L25] y = y / 2 15.29/8.52 Loop: 15.29/8.52 [L23] COND TRUE x < y 15.29/8.52 [L24] x = x + y 15.29/8.52 [L25] y = y / 2 15.29/8.52 End of lasso representation. 15.29/8.52 RESULT: Ultimate proved your program to be incorrect! 15.29/8.52 !SESSION 2019-03-28 11:53:28.536 ----------------------------------------------- 15.29/8.52 eclipse.buildId=unknown 15.29/8.52 java.version=1.8.0_181 15.29/8.52 java.vendor=Oracle Corporation 15.29/8.52 BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US 15.29/8.52 Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox/benchmark/theBenchmark.c 15.29/8.52 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 15.29/8.52 15.29/8.52 !ENTRY org.eclipse.core.resources 2 10035 2019-03-28 11:53:35.456 15.29/8.52 !MESSAGE The workspace will exit with unsaved changes in this session. 15.29/8.52 Received shutdown request... 15.29/8.52 Ultimate: 15.29/8.52 GTK+ Version Check 15.29/8.52 EOF