55.22/24.87 YES 55.22/24.87 55.22/24.87 Ultimate: Cannot open display: 55.22/24.87 This is Ultimate 0.1.24-8dc7c08-m 55.22/24.87 [2019-03-28 12:06:30,828 INFO L170 SettingsManager]: Resetting all preferences to default values... 55.22/24.87 [2019-03-28 12:06:30,830 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values 55.22/24.87 [2019-03-28 12:06:30,841 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 55.22/24.87 [2019-03-28 12:06:30,841 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values 55.22/24.87 [2019-03-28 12:06:30,842 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values 55.22/24.87 [2019-03-28 12:06:30,843 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values 55.22/24.87 [2019-03-28 12:06:30,845 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values 55.22/24.87 [2019-03-28 12:06:30,847 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values 55.22/24.87 [2019-03-28 12:06:30,847 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values 55.22/24.87 [2019-03-28 12:06:30,848 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 55.22/24.87 [2019-03-28 12:06:30,848 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values 55.22/24.87 [2019-03-28 12:06:30,849 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values 55.22/24.87 [2019-03-28 12:06:30,850 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values 55.22/24.87 [2019-03-28 12:06:30,851 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values 55.22/24.87 [2019-03-28 12:06:30,852 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values 55.22/24.87 [2019-03-28 12:06:30,853 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values 55.22/24.87 [2019-03-28 12:06:30,854 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values 55.22/24.87 [2019-03-28 12:06:30,856 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values 55.22/24.87 [2019-03-28 12:06:30,858 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values 55.22/24.87 [2019-03-28 12:06:30,859 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values 55.22/24.87 [2019-03-28 12:06:30,860 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values 55.22/24.87 [2019-03-28 12:06:30,862 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 55.22/24.87 [2019-03-28 12:06:30,862 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... 55.22/24.87 [2019-03-28 12:06:30,862 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values 55.22/24.87 [2019-03-28 12:06:30,863 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values 55.22/24.87 [2019-03-28 12:06:30,864 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values 55.22/24.87 [2019-03-28 12:06:30,864 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... 55.22/24.87 [2019-03-28 12:06:30,865 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values 55.22/24.87 [2019-03-28 12:06:30,865 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values 55.22/24.87 [2019-03-28 12:06:30,866 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values 55.22/24.87 [2019-03-28 12:06:30,867 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values 55.22/24.87 [2019-03-28 12:06:30,868 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... 55.22/24.87 [2019-03-28 12:06:30,868 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values 55.22/24.87 [2019-03-28 12:06:30,868 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 55.22/24.87 [2019-03-28 12:06:30,869 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... 55.22/24.87 [2019-03-28 12:06:30,869 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values 55.22/24.87 [2019-03-28 12:06:30,870 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values 55.22/24.87 [2019-03-28 12:06:30,870 INFO L181 SettingsManager]: Finished resetting all preferences to default values... 55.22/24.87 [2019-03-28 12:06:30,871 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf 55.22/24.87 [2019-03-28 12:06:30,885 INFO L110 SettingsManager]: Loading preferences was successful 55.22/24.87 [2019-03-28 12:06:30,885 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: 55.22/24.87 [2019-03-28 12:06:30,887 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: 55.22/24.87 [2019-03-28 12:06:30,887 INFO L133 SettingsManager]: * Rewrite not-equals=true 55.22/24.87 [2019-03-28 12:06:30,887 INFO L133 SettingsManager]: * Create parallel compositions if possible=false 55.22/24.87 [2019-03-28 12:06:30,887 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE 55.22/24.87 [2019-03-28 12:06:30,887 INFO L133 SettingsManager]: * Use SBE=true 55.22/24.87 [2019-03-28 12:06:30,887 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: 55.22/24.87 [2019-03-28 12:06:30,888 INFO L133 SettingsManager]: * Use old map elimination=false 55.22/24.87 [2019-03-28 12:06:30,888 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false 55.22/24.87 [2019-03-28 12:06:30,888 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION 55.22/24.87 [2019-03-28 12:06:30,888 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true 55.22/24.87 [2019-03-28 12:06:30,888 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES 55.22/24.87 [2019-03-28 12:06:30,888 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true 55.22/24.87 [2019-03-28 12:06:30,889 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 55.22/24.87 [2019-03-28 12:06:30,889 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: 55.22/24.87 [2019-03-28 12:06:30,889 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false 55.22/24.87 [2019-03-28 12:06:30,889 INFO L133 SettingsManager]: * Check division by zero=IGNORE 55.22/24.87 [2019-03-28 12:06:30,889 INFO L133 SettingsManager]: * Check if freed pointer was valid=false 55.22/24.87 [2019-03-28 12:06:30,889 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false 55.22/24.87 [2019-03-28 12:06:30,890 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE 55.22/24.87 [2019-03-28 12:06:30,890 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: 55.22/24.87 [2019-03-28 12:06:30,890 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements 55.22/24.87 [2019-03-28 12:06:30,890 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump 55.22/24.87 [2019-03-28 12:06:30,890 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 55.22/24.87 [2019-03-28 12:06:30,891 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: 55.22/24.87 [2019-03-28 12:06:30,891 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles 55.22/24.87 [2019-03-28 12:06:30,891 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL 55.22/24.87 [2019-03-28 12:06:30,891 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 55.22/24.87 [2019-03-28 12:06:30,917 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp 55.22/24.87 [2019-03-28 12:06:30,930 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized 55.22/24.87 [2019-03-28 12:06:30,933 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. 55.22/24.87 [2019-03-28 12:06:30,935 INFO L271 PluginConnector]: Initializing CDTParser... 55.22/24.87 [2019-03-28 12:06:30,935 INFO L276 PluginConnector]: CDTParser initialized 55.22/24.87 [2019-03-28 12:06:30,936 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c 55.22/24.87 [2019-03-28 12:06:30,993 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/105121915c7649c0b0cb212f05745fa7/FLAGc7eae2139 55.22/24.87 [2019-03-28 12:06:31,333 INFO L307 CDTParser]: Found 1 translation units. 55.22/24.87 [2019-03-28 12:06:31,334 INFO L161 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c 55.22/24.87 [2019-03-28 12:06:31,341 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/105121915c7649c0b0cb212f05745fa7/FLAGc7eae2139 55.22/24.87 [2019-03-28 12:06:31,772 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/105121915c7649c0b0cb212f05745fa7 55.22/24.87 [2019-03-28 12:06:31,784 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### 55.22/24.87 [2019-03-28 12:06:31,785 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. 55.22/24.87 [2019-03-28 12:06:31,786 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- 55.22/24.87 [2019-03-28 12:06:31,786 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... 55.22/24.87 [2019-03-28 12:06:31,790 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized 55.22/24.87 [2019-03-28 12:06:31,791 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.03 12:06:31" (1/1) ... 55.22/24.87 [2019-03-28 12:06:31,794 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c391284 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:06:31, skipping insertion in model container 55.22/24.87 [2019-03-28 12:06:31,794 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.03 12:06:31" (1/1) ... 55.22/24.87 [2019-03-28 12:06:31,802 INFO L145 MainTranslator]: Starting translation in SV-COMP mode 55.22/24.87 [2019-03-28 12:06:31,820 INFO L176 MainTranslator]: Built tables and reachable declarations 55.22/24.87 [2019-03-28 12:06:31,981 INFO L206 PostProcessor]: Analyzing one entry point: main 55.22/24.87 [2019-03-28 12:06:31,986 INFO L191 MainTranslator]: Completed pre-run 55.22/24.87 [2019-03-28 12:06:32,002 INFO L206 PostProcessor]: Analyzing one entry point: main 55.22/24.87 [2019-03-28 12:06:32,081 INFO L195 MainTranslator]: Completed translation 55.22/24.87 [2019-03-28 12:06:32,081 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:06:32 WrapperNode 55.22/24.87 [2019-03-28 12:06:32,082 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- 55.22/24.87 [2019-03-28 12:06:32,083 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- 55.22/24.87 [2019-03-28 12:06:32,083 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... 55.22/24.87 [2019-03-28 12:06:32,083 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized 55.22/24.87 [2019-03-28 12:06:32,093 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:06:32" (1/1) ... 55.22/24.87 [2019-03-28 12:06:32,099 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:06:32" (1/1) ... 55.22/24.87 [2019-03-28 12:06:32,119 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- 55.22/24.87 [2019-03-28 12:06:32,120 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- 55.22/24.87 [2019-03-28 12:06:32,120 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... 55.22/24.87 [2019-03-28 12:06:32,120 INFO L276 PluginConnector]: Boogie Preprocessor initialized 55.22/24.87 [2019-03-28 12:06:32,130 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:06:32" (1/1) ... 55.22/24.87 [2019-03-28 12:06:32,130 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:06:32" (1/1) ... 55.22/24.87 [2019-03-28 12:06:32,131 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:06:32" (1/1) ... 55.22/24.87 [2019-03-28 12:06:32,131 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:06:32" (1/1) ... 55.22/24.87 [2019-03-28 12:06:32,133 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:06:32" (1/1) ... 55.22/24.87 [2019-03-28 12:06:32,136 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:06:32" (1/1) ... 55.22/24.87 [2019-03-28 12:06:32,136 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:06:32" (1/1) ... 55.22/24.87 [2019-03-28 12:06:32,138 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- 55.22/24.87 [2019-03-28 12:06:32,138 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- 55.22/24.87 [2019-03-28 12:06:32,138 INFO L271 PluginConnector]: Initializing RCFGBuilder... 55.22/24.87 [2019-03-28 12:06:32,138 INFO L276 PluginConnector]: RCFGBuilder initialized 55.22/24.87 [2019-03-28 12:06:32,139 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:06:32" (1/1) ... 55.22/24.87 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 55.22/24.87 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) 55.22/24.87 Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 55.22/24.87 [2019-03-28 12:06:32,212 INFO L130 BoogieDeclarations]: Found specification of procedure rec1 55.22/24.87 [2019-03-28 12:06:32,212 INFO L138 BoogieDeclarations]: Found implementation of procedure rec1 55.22/24.87 [2019-03-28 12:06:32,213 INFO L130 BoogieDeclarations]: Found specification of procedure rec2 55.22/24.87 [2019-03-28 12:06:32,213 INFO L138 BoogieDeclarations]: Found implementation of procedure rec2 55.22/24.87 [2019-03-28 12:06:32,213 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start 55.22/24.87 [2019-03-28 12:06:32,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start 55.22/24.87 [2019-03-28 12:06:32,373 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) 55.22/24.87 [2019-03-28 12:06:32,374 INFO L286 CfgBuilder]: Removed 4 assue(true) statements. 55.22/24.87 [2019-03-28 12:06:32,375 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 12:06:32 BoogieIcfgContainer 55.22/24.87 [2019-03-28 12:06:32,375 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- 55.22/24.87 [2019-03-28 12:06:32,376 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- 55.22/24.87 [2019-03-28 12:06:32,376 INFO L271 PluginConnector]: Initializing BlockEncodingV2... 55.22/24.87 [2019-03-28 12:06:32,378 INFO L276 PluginConnector]: BlockEncodingV2 initialized 55.22/24.87 [2019-03-28 12:06:32,379 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 12:06:32" (1/1) ... 55.22/24.87 [2019-03-28 12:06:32,398 INFO L313 BlockEncoder]: Initial Icfg 21 locations, 26 edges 55.22/24.87 [2019-03-28 12:06:32,400 INFO L258 BlockEncoder]: Using Remove infeasible edges 55.22/24.87 [2019-03-28 12:06:32,400 INFO L263 BlockEncoder]: Using Maximize final states 55.22/24.87 [2019-03-28 12:06:32,401 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false 55.22/24.87 [2019-03-28 12:06:32,401 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE 55.22/24.87 [2019-03-28 12:06:32,403 INFO L296 BlockEncoder]: Using Remove sink states 55.22/24.87 [2019-03-28 12:06:32,404 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true 55.22/24.87 [2019-03-28 12:06:32,404 INFO L179 BlockEncoder]: Using Rewrite not-equals 55.22/24.87 [2019-03-28 12:06:32,420 INFO L185 BlockEncoder]: Using Use SBE 55.22/24.87 [2019-03-28 12:06:32,428 INFO L200 BlockEncoder]: SBE split 0 edges 55.22/24.87 [2019-03-28 12:06:32,433 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility 55.22/24.87 [2019-03-28 12:06:32,435 INFO L71 MaximizeFinalStates]: 0 new accepting states 55.22/24.87 [2019-03-28 12:06:32,446 INFO L100 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding 55.22/24.87 [2019-03-28 12:06:32,449 INFO L70 RemoveSinkStates]: Removed 2 edges and 2 locations by removing sink states 55.22/24.87 [2019-03-28 12:06:32,451 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility 55.22/24.87 [2019-03-28 12:06:32,451 INFO L71 MaximizeFinalStates]: 0 new accepting states 55.22/24.87 [2019-03-28 12:06:32,451 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding 55.22/24.87 [2019-03-28 12:06:32,452 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states 55.22/24.87 [2019-03-28 12:06:32,452 INFO L313 BlockEncoder]: Encoded RCFG 17 locations, 22 edges 55.22/24.87 [2019-03-28 12:06:32,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 28.03 12:06:32 BasicIcfg 55.22/24.87 [2019-03-28 12:06:32,453 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- 55.22/24.87 [2019-03-28 12:06:32,454 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- 55.22/24.87 [2019-03-28 12:06:32,454 INFO L271 PluginConnector]: Initializing TraceAbstraction... 55.22/24.87 [2019-03-28 12:06:32,457 INFO L276 PluginConnector]: TraceAbstraction initialized 55.22/24.87 [2019-03-28 12:06:32,458 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.03 12:06:31" (1/4) ... 55.22/24.87 [2019-03-28 12:06:32,458 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dab109 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.03 12:06:32, skipping insertion in model container 55.22/24.87 [2019-03-28 12:06:32,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:06:32" (2/4) ... 55.22/24.87 [2019-03-28 12:06:32,459 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dab109 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.03 12:06:32, skipping insertion in model container 55.22/24.87 [2019-03-28 12:06:32,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 12:06:32" (3/4) ... 55.22/24.87 [2019-03-28 12:06:32,460 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dab109 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.03 12:06:32, skipping insertion in model container 55.22/24.87 [2019-03-28 12:06:32,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 28.03 12:06:32" (4/4) ... 55.22/24.87 [2019-03-28 12:06:32,461 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 55.22/24.87 [2019-03-28 12:06:32,472 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION 55.22/24.87 [2019-03-28 12:06:32,479 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. 55.22/24.87 [2019-03-28 12:06:32,498 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. 55.22/24.87 [2019-03-28 12:06:32,530 INFO L133 ementStrategyFactory]: Using default assertion order modulation 55.22/24.87 [2019-03-28 12:06:32,531 INFO L382 AbstractCegarLoop]: Interprodecural is true 55.22/24.87 [2019-03-28 12:06:32,531 INFO L383 AbstractCegarLoop]: Hoare is true 55.22/24.87 [2019-03-28 12:06:32,531 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates 55.22/24.87 [2019-03-28 12:06:32,531 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE 55.22/24.87 [2019-03-28 12:06:32,532 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION 55.22/24.87 [2019-03-28 12:06:32,532 INFO L387 AbstractCegarLoop]: Difference is false 55.22/24.87 [2019-03-28 12:06:32,532 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA 55.22/24.87 [2019-03-28 12:06:32,532 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== 55.22/24.87 [2019-03-28 12:06:32,550 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. 55.22/24.87 [2019-03-28 12:06:32,557 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. 55.22/24.87 [2019-03-28 12:06:32,564 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 17 states. 55.22/24.87 [2019-03-28 12:06:32,633 INFO L451 ceAbstractionStarter]: At program point L14(line 14) the Hoare annotation is: true 55.22/24.87 [2019-03-28 12:06:32,633 INFO L451 ceAbstractionStarter]: At program point rec1ENTRY(lines 11 15) the Hoare annotation is: true 55.22/24.87 [2019-03-28 12:06:32,634 INFO L448 ceAbstractionStarter]: For program point rec1FINAL(lines 11 15) no Hoare annotation was computed. 55.22/24.87 [2019-03-28 12:06:32,634 INFO L451 ceAbstractionStarter]: At program point L14-1(line 14) the Hoare annotation is: true 55.22/24.87 [2019-03-28 12:06:32,634 INFO L448 ceAbstractionStarter]: For program point L12(lines 12 13) no Hoare annotation was computed. 55.22/24.87 [2019-03-28 12:06:32,634 INFO L451 ceAbstractionStarter]: At program point L14-2(line 14) the Hoare annotation is: true 55.22/24.87 [2019-03-28 12:06:32,635 INFO L448 ceAbstractionStarter]: For program point L14-3(line 14) no Hoare annotation was computed. 55.22/24.87 [2019-03-28 12:06:32,635 INFO L448 ceAbstractionStarter]: For program point rec1EXIT(lines 11 15) no Hoare annotation was computed. 55.22/24.87 [2019-03-28 12:06:32,635 INFO L451 ceAbstractionStarter]: At program point rec2ENTRY(lines 17 21) the Hoare annotation is: true 55.22/24.87 [2019-03-28 12:06:32,635 INFO L448 ceAbstractionStarter]: For program point rec2FINAL(lines 17 21) no Hoare annotation was computed. 55.22/24.87 [2019-03-28 12:06:32,635 INFO L448 ceAbstractionStarter]: For program point rec2EXIT(lines 17 21) no Hoare annotation was computed. 55.22/24.87 [2019-03-28 12:06:32,636 INFO L451 ceAbstractionStarter]: At program point L20(line 20) the Hoare annotation is: true 55.22/24.87 [2019-03-28 12:06:32,636 INFO L451 ceAbstractionStarter]: At program point L20-1(line 20) the Hoare annotation is: true 55.22/24.87 [2019-03-28 12:06:32,636 INFO L448 ceAbstractionStarter]: For program point L18(lines 18 19) no Hoare annotation was computed. 55.22/24.87 [2019-03-28 12:06:32,636 INFO L448 ceAbstractionStarter]: For program point L20-2(line 20) no Hoare annotation was computed. 55.22/24.87 [2019-03-28 12:06:32,636 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. 55.22/24.87 [2019-03-28 12:06:32,637 INFO L451 ceAbstractionStarter]: At program point L25(line 25) the Hoare annotation is: true 55.22/24.87 [2019-03-28 12:06:32,640 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.03 12:06:32 BasicIcfg 55.22/24.87 [2019-03-28 12:06:32,640 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- 55.22/24.87 [2019-03-28 12:06:32,641 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- 55.22/24.87 [2019-03-28 12:06:32,641 INFO L271 PluginConnector]: Initializing BuchiAutomizer... 55.22/24.87 [2019-03-28 12:06:32,645 INFO L276 PluginConnector]: BuchiAutomizer initialized 55.22/24.87 [2019-03-28 12:06:32,645 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 55.22/24.87 [2019-03-28 12:06:32,646 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.03 12:06:31" (1/5) ... 55.22/24.87 [2019-03-28 12:06:32,646 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@63a7063c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.03 12:06:32, skipping insertion in model container 55.22/24.87 [2019-03-28 12:06:32,646 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 55.22/24.87 [2019-03-28 12:06:32,647 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:06:32" (2/5) ... 55.22/24.87 [2019-03-28 12:06:32,647 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@63a7063c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.03 12:06:32, skipping insertion in model container 55.22/24.87 [2019-03-28 12:06:32,647 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 55.22/24.87 [2019-03-28 12:06:32,647 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 12:06:32" (3/5) ... 55.22/24.87 [2019-03-28 12:06:32,648 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@63a7063c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.03 12:06:32, skipping insertion in model container 55.22/24.87 [2019-03-28 12:06:32,648 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 55.22/24.87 [2019-03-28 12:06:32,648 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 28.03 12:06:32" (4/5) ... 55.22/24.87 [2019-03-28 12:06:32,648 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@63a7063c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.03 12:06:32, skipping insertion in model container 55.22/24.87 [2019-03-28 12:06:32,648 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 55.22/24.87 [2019-03-28 12:06:32,649 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.03 12:06:32" (5/5) ... 55.22/24.87 [2019-03-28 12:06:32,650 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 55.22/24.87 [2019-03-28 12:06:32,678 INFO L133 ementStrategyFactory]: Using default assertion order modulation 55.22/24.87 [2019-03-28 12:06:32,679 INFO L374 BuchiCegarLoop]: Interprodecural is true 55.22/24.87 [2019-03-28 12:06:32,679 INFO L375 BuchiCegarLoop]: Hoare is true 55.22/24.87 [2019-03-28 12:06:32,679 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates 55.22/24.87 [2019-03-28 12:06:32,679 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE 55.22/24.87 [2019-03-28 12:06:32,679 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION 55.22/24.87 [2019-03-28 12:06:32,679 INFO L379 BuchiCegarLoop]: Difference is false 55.22/24.87 [2019-03-28 12:06:32,680 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA 55.22/24.87 [2019-03-28 12:06:32,680 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== 55.22/24.87 [2019-03-28 12:06:32,685 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states. 55.22/24.87 [2019-03-28 12:06:32,707 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 55.22/24.87 [2019-03-28 12:06:32,707 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 55.22/24.87 [2019-03-28 12:06:32,707 INFO L119 BuchiIsEmpty]: Starting construction of run 55.22/24.87 [2019-03-28 12:06:32,714 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] 55.22/24.87 [2019-03-28 12:06:32,714 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] 55.22/24.87 [2019-03-28 12:06:32,715 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ 55.22/24.87 [2019-03-28 12:06:32,715 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states. 55.22/24.87 [2019-03-28 12:06:32,717 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 55.22/24.87 [2019-03-28 12:06:32,717 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 55.22/24.87 [2019-03-28 12:06:32,717 INFO L119 BuchiIsEmpty]: Starting construction of run 55.22/24.87 [2019-03-28 12:06:32,718 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] 55.22/24.87 [2019-03-28 12:06:32,718 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] 55.22/24.87 [2019-03-28 12:06:32,723 INFO L794 eck$LassoCheckResult]: Stem: 13#ULTIMATE.startENTRYtrue [47] ULTIMATE.startENTRY-->L25: Formula: (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet5_4|) InVars {} OutVars{ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_1|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#t~ret6=|v_ULTIMATE.start_main_#t~ret6_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[|v_ULTIMATE.start_main_#t~nondet5_4|] AssignedVars[ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#res, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_#t~ret6] 18#L25true [56] L25-->rec2ENTRY: Formula: (= |v_rec2_#in~jInParam_2| v_ULTIMATE.start_main_~x~0_5) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} OutVars{rec2_#in~j=|v_rec2_#in~jInParam_2|} AuxVars[] AssignedVars[rec2_#in~j]< 3#rec2ENTRYtrue 55.22/24.87 [2019-03-28 12:06:32,724 INFO L796 eck$LassoCheckResult]: Loop: 3#rec2ENTRYtrue [38] rec2ENTRY-->L18: Formula: (= v_rec2_~j_1 |v_rec2_#in~j_1|) InVars {rec2_#in~j=|v_rec2_#in~j_1|} OutVars{rec2_~j=v_rec2_~j_1, rec2_#in~j=|v_rec2_#in~j_1|} AuxVars[] AssignedVars[rec2_~j] 16#L18true [64] L18-->L20: Formula: (> v_rec2_~j_3 0) InVars {rec2_~j=v_rec2_~j_3} OutVars{rec2_~j=v_rec2_~j_3} AuxVars[] AssignedVars[] 15#L20true [50] L20-->rec2ENTRY: Formula: (= |v_rec2_#in~jInParam_1| (+ v_rec2_~j_5 (- 1))) InVars {rec2_~j=v_rec2_~j_5} OutVars{rec2_#in~j=|v_rec2_#in~jInParam_1|} AuxVars[] AssignedVars[rec2_#in~j]< 3#rec2ENTRYtrue 55.22/24.87 [2019-03-28 12:06:32,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 55.22/24.87 [2019-03-28 12:06:32,730 INFO L82 PathProgramCache]: Analyzing trace with hash 2474, now seen corresponding path program 1 times 55.22/24.87 [2019-03-28 12:06:32,732 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 55.22/24.87 [2019-03-28 12:06:32,733 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 55.22/24.87 [2019-03-28 12:06:32,753 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 55.22/24.87 [2019-03-28 12:06:32,753 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 55.22/24.87 [2019-03-28 12:06:32,753 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 55.22/24.87 [2019-03-28 12:06:32,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 55.22/24.87 [2019-03-28 12:06:32,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 55.22/24.87 [2019-03-28 12:06:32,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 55.22/24.87 [2019-03-28 12:06:32,796 INFO L82 PathProgramCache]: Analyzing trace with hash 68343, now seen corresponding path program 1 times 55.22/24.87 [2019-03-28 12:06:32,796 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 55.22/24.87 [2019-03-28 12:06:32,796 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 55.22/24.87 [2019-03-28 12:06:32,797 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 55.22/24.87 [2019-03-28 12:06:32,797 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 55.22/24.87 [2019-03-28 12:06:32,797 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 55.22/24.87 [2019-03-28 12:06:32,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 55.22/24.87 [2019-03-28 12:06:32,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 55.22/24.87 [2019-03-28 12:06:32,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 55.22/24.87 [2019-03-28 12:06:32,815 INFO L82 PathProgramCache]: Analyzing trace with hash 73741486, now seen corresponding path program 1 times 55.22/24.87 [2019-03-28 12:06:32,815 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 55.22/24.87 [2019-03-28 12:06:32,815 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 55.22/24.87 [2019-03-28 12:06:32,816 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 55.22/24.87 [2019-03-28 12:06:32,816 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 55.22/24.87 [2019-03-28 12:06:32,816 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 55.22/24.87 [2019-03-28 12:06:32,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 55.22/24.87 [2019-03-28 12:06:32,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 55.22/24.87 [2019-03-28 12:06:32,893 INFO L216 LassoAnalysis]: Preferences: 55.22/24.87 [2019-03-28 12:06:32,894 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 55.22/24.87 [2019-03-28 12:06:32,894 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 55.22/24.87 [2019-03-28 12:06:32,895 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 55.22/24.87 [2019-03-28 12:06:32,895 INFO L127 ssoRankerPreferences]: Use exernal solver: true 55.22/24.87 [2019-03-28 12:06:32,895 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 55.22/24.87 [2019-03-28 12:06:32,895 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 55.22/24.87 [2019-03-28 12:06:32,895 INFO L130 ssoRankerPreferences]: Path of dumped script: 55.22/24.87 [2019-03-28 12:06:32,895 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop 55.22/24.87 [2019-03-28 12:06:32,896 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 55.22/24.87 [2019-03-28 12:06:32,896 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 55.22/24.87 [2019-03-28 12:06:32,914 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 55.22/24.87 [2019-03-28 12:06:32,921 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 55.22/24.87 [2019-03-28 12:06:32,924 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 55.22/24.87 [2019-03-28 12:06:32,927 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 55.22/24.87 [2019-03-28 12:06:32,938 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 55.22/24.87 [2019-03-28 12:06:32,985 INFO L300 LassoAnalysis]: Preprocessing complete. 55.22/24.87 [2019-03-28 12:06:32,986 INFO L412 LassoAnalysis]: Checking for nontermination... 55.22/24.87 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 55.22/24.87 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 55.22/24.87 Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 55.22/24.87 [2019-03-28 12:06:32,992 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 55.22/24.87 [2019-03-28 12:06:32,992 INFO L163 nArgumentSynthesizer]: Using integer mode. 55.22/24.87 [2019-03-28 12:06:33,001 INFO L445 LassoAnalysis]: Proved nontermination for one component. 55.22/24.87 [2019-03-28 12:06:33,001 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec2_#res=0} Honda state: {rec2_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 55.22/24.87 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 55.22/24.87 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 55.22/24.87 Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 55.22/24.87 [2019-03-28 12:06:33,028 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 55.22/24.87 [2019-03-28 12:06:33,029 INFO L163 nArgumentSynthesizer]: Using integer mode. 55.22/24.87 [2019-03-28 12:06:33,032 INFO L445 LassoAnalysis]: Proved nontermination for one component. 55.22/24.87 [2019-03-28 12:06:33,032 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec2_#t~ret3=0} Honda state: {rec2_#t~ret3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 55.22/24.87 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 55.22/24.87 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 55.22/24.87 Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 55.22/24.87 [2019-03-28 12:06:33,060 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 55.22/24.87 [2019-03-28 12:06:33,060 INFO L163 nArgumentSynthesizer]: Using integer mode. 55.22/24.87 [2019-03-28 12:06:33,063 INFO L445 LassoAnalysis]: Proved nontermination for one component. 55.22/24.87 [2019-03-28 12:06:33,064 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec2_#t~ret4=0} Honda state: {rec2_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 55.22/24.87 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 55.22/24.87 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 55.22/24.87 Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 55.22/24.87 [2019-03-28 12:06:33,101 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 55.22/24.87 [2019-03-28 12:06:33,102 INFO L163 nArgumentSynthesizer]: Using integer mode. 55.22/24.87 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 55.22/24.87 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 55.22/24.87 Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 55.22/24.87 [2019-03-28 12:06:33,135 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true 55.22/24.87 [2019-03-28 12:06:33,135 INFO L163 nArgumentSynthesizer]: Using integer mode. 55.22/24.87 [2019-03-28 12:06:33,167 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. 55.22/24.87 [2019-03-28 12:06:33,169 INFO L216 LassoAnalysis]: Preferences: 55.22/24.87 [2019-03-28 12:06:33,169 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 55.22/24.87 [2019-03-28 12:06:33,169 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 55.22/24.87 [2019-03-28 12:06:33,169 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 55.22/24.87 [2019-03-28 12:06:33,169 INFO L127 ssoRankerPreferences]: Use exernal solver: false 55.22/24.87 [2019-03-28 12:06:33,170 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 55.22/24.87 [2019-03-28 12:06:33,170 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 55.22/24.87 [2019-03-28 12:06:33,170 INFO L130 ssoRankerPreferences]: Path of dumped script: 55.22/24.87 [2019-03-28 12:06:33,171 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop 55.22/24.87 [2019-03-28 12:06:33,171 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 55.22/24.87 [2019-03-28 12:06:33,171 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 55.22/24.87 [2019-03-28 12:06:33,173 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 55.22/24.87 [2019-03-28 12:06:33,176 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 55.22/24.87 [2019-03-28 12:06:33,192 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 55.22/24.87 [2019-03-28 12:06:33,199 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 55.22/24.87 [2019-03-28 12:06:33,201 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 55.22/24.87 [2019-03-28 12:06:33,247 INFO L300 LassoAnalysis]: Preprocessing complete. 55.22/24.87 [2019-03-28 12:06:33,253 INFO L497 LassoAnalysis]: Using template 'affine'. 55.22/24.87 [2019-03-28 12:06:33,255 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 55.22/24.87 Termination analysis: LINEAR_WITH_GUESSES 55.22/24.87 Number of strict supporting invariants: 0 55.22/24.87 Number of non-strict supporting invariants: 1 55.22/24.87 Consider only non-deceasing supporting invariants: true 55.22/24.87 Simplify termination arguments: true 55.22/24.87 Simplify supporting invariants: trueOverapproximate stem: false 55.22/24.87 [2019-03-28 12:06:33,257 INFO L339 nArgumentSynthesizer]: Template has degree 0. 55.22/24.87 [2019-03-28 12:06:33,257 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 55.22/24.87 [2019-03-28 12:06:33,258 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 55.22/24.87 [2019-03-28 12:06:33,258 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 55.22/24.87 [2019-03-28 12:06:33,258 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 55.22/24.87 [2019-03-28 12:06:33,262 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 55.22/24.87 [2019-03-28 12:06:33,262 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 55.22/24.87 [2019-03-28 12:06:33,267 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. 55.22/24.87 [2019-03-28 12:06:33,267 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 55.22/24.87 Termination analysis: LINEAR_WITH_GUESSES 55.22/24.87 Number of strict supporting invariants: 0 55.22/24.87 Number of non-strict supporting invariants: 1 55.22/24.87 Consider only non-deceasing supporting invariants: true 55.22/24.87 Simplify termination arguments: true 55.22/24.87 Simplify supporting invariants: trueOverapproximate stem: false 55.22/24.87 [2019-03-28 12:06:33,268 INFO L339 nArgumentSynthesizer]: Template has degree 0. 55.22/24.87 [2019-03-28 12:06:33,268 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 55.22/24.87 [2019-03-28 12:06:33,268 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 55.22/24.87 [2019-03-28 12:06:33,268 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 55.22/24.87 [2019-03-28 12:06:33,269 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 55.22/24.87 [2019-03-28 12:06:33,270 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 55.22/24.87 [2019-03-28 12:06:33,270 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 55.22/24.87 [2019-03-28 12:06:33,277 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. 55.22/24.87 [2019-03-28 12:06:33,282 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. 55.22/24.87 [2019-03-28 12:06:33,282 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. 55.22/24.87 [2019-03-28 12:06:33,284 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... 55.22/24.87 [2019-03-28 12:06:33,284 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. 55.22/24.87 [2019-03-28 12:06:33,285 INFO L518 LassoAnalysis]: Proved termination. 55.22/24.87 [2019-03-28 12:06:33,285 INFO L520 LassoAnalysis]: Termination argument consisting of: 55.22/24.87 Ranking function f(rec2_#in~j) = 1*rec2_#in~j 55.22/24.87 Supporting invariants [] 55.22/24.87 [2019-03-28 12:06:33,287 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed 55.22/24.87 [2019-03-28 12:06:33,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 55.22/24.87 [2019-03-28 12:06:33,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 55.22/24.87 [2019-03-28 12:06:33,340 INFO L256 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 4 conjunts are in the unsatisfiable core 55.22/24.87 [2019-03-28 12:06:33,341 INFO L279 TraceCheckSpWp]: Computing forward predicates... 55.22/24.87 [2019-03-28 12:06:33,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 55.22/24.87 [2019-03-28 12:06:33,362 INFO L256 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 7 conjunts are in the unsatisfiable core 55.22/24.87 [2019-03-28 12:06:33,363 INFO L279 TraceCheckSpWp]: Computing forward predicates... 55.22/24.87 [2019-03-28 12:06:33,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. 55.22/24.87 [2019-03-28 12:06:33,417 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization 55.22/24.87 [2019-03-28 12:06:33,422 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 3 loop predicates 55.22/24.87 [2019-03-28 12:06:33,424 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 17 states. Second operand 4 states. 55.22/24.87 [2019-03-28 12:06:33,507 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 17 states.. Second operand 4 states. Result 36 states and 45 transitions. Complement of second has 16 states. 55.22/24.87 [2019-03-28 12:06:33,507 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states 55.22/24.87 [2019-03-28 12:06:33,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. 55.22/24.87 [2019-03-28 12:06:33,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 29 transitions. 55.22/24.87 [2019-03-28 12:06:33,512 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 29 transitions. Stem has 2 letters. Loop has 3 letters. 55.22/24.87 [2019-03-28 12:06:33,514 INFO L116 BuchiAccepts]: Finished buchiAccepts. 55.22/24.87 [2019-03-28 12:06:33,514 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 29 transitions. Stem has 5 letters. Loop has 3 letters. 55.22/24.87 [2019-03-28 12:06:33,515 INFO L116 BuchiAccepts]: Finished buchiAccepts. 55.22/24.87 [2019-03-28 12:06:33,515 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 29 transitions. Stem has 2 letters. Loop has 6 letters. 55.22/24.87 [2019-03-28 12:06:33,515 INFO L116 BuchiAccepts]: Finished buchiAccepts. 55.22/24.87 [2019-03-28 12:06:33,522 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 45 transitions. 55.22/24.87 [2019-03-28 12:06:33,527 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 55.22/24.87 [2019-03-28 12:06:33,535 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 25 states and 33 transitions. 55.22/24.87 [2019-03-28 12:06:33,536 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 55.22/24.87 [2019-03-28 12:06:33,537 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 55.22/24.87 [2019-03-28 12:06:33,538 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 33 transitions. 55.22/24.87 [2019-03-28 12:06:33,538 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. 55.22/24.87 [2019-03-28 12:06:33,538 INFO L706 BuchiCegarLoop]: Abstraction has 25 states and 33 transitions. 55.22/24.87 [2019-03-28 12:06:33,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 33 transitions. 55.22/24.87 [2019-03-28 12:06:33,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24. 55.22/24.87 [2019-03-28 12:06:33,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. 55.22/24.87 [2019-03-28 12:06:33,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 31 transitions. 55.22/24.87 [2019-03-28 12:06:33,574 INFO L729 BuchiCegarLoop]: Abstraction has 24 states and 31 transitions. 55.22/24.87 [2019-03-28 12:06:33,575 INFO L609 BuchiCegarLoop]: Abstraction has 24 states and 31 transitions. 55.22/24.87 [2019-03-28 12:06:33,575 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ 55.22/24.87 [2019-03-28 12:06:33,575 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 31 transitions. 55.22/24.87 [2019-03-28 12:06:33,576 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 55.22/24.87 [2019-03-28 12:06:33,577 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 55.22/24.87 [2019-03-28 12:06:33,577 INFO L119 BuchiIsEmpty]: Starting construction of run 55.22/24.87 [2019-03-28 12:06:33,578 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] 55.22/24.87 [2019-03-28 12:06:33,578 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] 55.22/24.87 [2019-03-28 12:06:33,578 INFO L794 eck$LassoCheckResult]: Stem: 130#ULTIMATE.startENTRY [47] ULTIMATE.startENTRY-->L25: Formula: (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet5_4|) InVars {} OutVars{ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_1|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#t~ret6=|v_ULTIMATE.start_main_#t~ret6_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[|v_ULTIMATE.start_main_#t~nondet5_4|] AssignedVars[ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#res, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_#t~ret6] 110#L25 [56] L25-->rec2ENTRY: Formula: (= |v_rec2_#in~jInParam_2| v_ULTIMATE.start_main_~x~0_5) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} OutVars{rec2_#in~j=|v_rec2_#in~jInParam_2|} AuxVars[] AssignedVars[rec2_#in~j]< 109#rec2ENTRY [38] rec2ENTRY-->L18: Formula: (= v_rec2_~j_1 |v_rec2_#in~j_1|) InVars {rec2_#in~j=|v_rec2_#in~j_1|} OutVars{rec2_~j=v_rec2_~j_1, rec2_#in~j=|v_rec2_#in~j_1|} AuxVars[] AssignedVars[rec2_~j] 111#L18 [64] L18-->L20: Formula: (> v_rec2_~j_3 0) InVars {rec2_~j=v_rec2_~j_3} OutVars{rec2_~j=v_rec2_~j_3} AuxVars[] AssignedVars[] 114#L20 [50] L20-->rec2ENTRY: Formula: (= |v_rec2_#in~jInParam_1| (+ v_rec2_~j_5 (- 1))) InVars {rec2_~j=v_rec2_~j_5} OutVars{rec2_#in~j=|v_rec2_#in~jInParam_1|} AuxVars[] AssignedVars[rec2_#in~j]< 112#rec2ENTRY [38] rec2ENTRY-->L18: Formula: (= v_rec2_~j_1 |v_rec2_#in~j_1|) InVars {rec2_#in~j=|v_rec2_#in~j_1|} OutVars{rec2_~j=v_rec2_~j_1, rec2_#in~j=|v_rec2_#in~j_1|} AuxVars[] AssignedVars[rec2_~j] 116#L18 [53] L18-->rec2FINAL: Formula: (and (<= v_rec2_~j_2 0) (= |v_rec2_#res_2| 0)) InVars {rec2_~j=v_rec2_~j_2} OutVars{rec2_~j=v_rec2_~j_2, rec2_#res=|v_rec2_#res_2|} AuxVars[] AssignedVars[rec2_#res] 131#rec2FINAL [41] rec2FINAL-->rec2EXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 132#rec2EXIT >[62] rec2EXIT-->L20-1: AOR: Formula: (= |v_rec2_#t~ret3_4| |v_rec2_#resOutParam_1|) InVars {rec2_#res=|v_rec2_#resOutParam_1|} OutVars{rec2_#t~ret3=|v_rec2_#t~ret3_4|} AuxVars[] AssignedVars[rec2_#t~ret3] LVA: Formula: (= |v_rec2_#in~jInParam_1| (+ v_rec2_~j_5 (- 1))) InVars {rec2_~j=v_rec2_~j_5} OutVars{rec2_#in~j=|v_rec2_#in~jInParam_1|} AuxVars[] AssignedVars[rec2_#in~j] 121#L20-1 [57] L20-1-->rec1ENTRY: Formula: (= |v_rec1_#in~iInParam_4| |v_rec2_#t~ret3_5|) InVars {rec2_#t~ret3=|v_rec2_#t~ret3_5|} OutVars{rec1_#in~i=|v_rec1_#in~iInParam_4|} AuxVars[] AssignedVars[rec1_#in~i]< 117#rec1ENTRY 55.22/24.87 [2019-03-28 12:06:33,579 INFO L796 eck$LassoCheckResult]: Loop: 117#rec1ENTRY [39] rec1ENTRY-->L12: Formula: (= v_rec1_~i_1 |v_rec1_#in~i_1|) InVars {rec1_#in~i=|v_rec1_#in~i_1|} OutVars{rec1_#in~i=|v_rec1_#in~i_1|, rec1_~i=v_rec1_~i_1} AuxVars[] AssignedVars[rec1_~i] 123#L12 [65] L12-->L14: Formula: (> v_rec1_~i_3 0) InVars {rec1_~i=v_rec1_~i_3} OutVars{rec1_~i=v_rec1_~i_3} AuxVars[] AssignedVars[] 122#L14 [48] L14-->rec1ENTRY: Formula: (= |v_rec1_#in~iInParam_1| (+ v_rec1_~i_5 (- 2))) InVars {rec1_~i=v_rec1_~i_5} OutVars{rec1_#in~i=|v_rec1_#in~iInParam_1|} AuxVars[] AssignedVars[rec1_#in~i]< 117#rec1ENTRY 55.22/24.87 [2019-03-28 12:06:33,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 55.22/24.87 [2019-03-28 12:06:33,579 INFO L82 PathProgramCache]: Analyzing trace with hash -640237945, now seen corresponding path program 1 times 55.22/24.87 [2019-03-28 12:06:33,579 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 55.22/24.87 [2019-03-28 12:06:33,579 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 55.22/24.87 [2019-03-28 12:06:33,580 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 55.22/24.87 [2019-03-28 12:06:33,581 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 55.22/24.87 [2019-03-28 12:06:33,581 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 55.22/24.87 [2019-03-28 12:06:33,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 55.22/24.87 [2019-03-28 12:06:33,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 55.22/24.87 [2019-03-28 12:06:33,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 55.22/24.87 [2019-03-28 12:06:33,592 INFO L82 PathProgramCache]: Analyzing trace with hash 69333, now seen corresponding path program 1 times 55.22/24.87 [2019-03-28 12:06:33,592 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 55.22/24.87 [2019-03-28 12:06:33,593 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 55.22/24.87 [2019-03-28 12:06:33,593 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 55.22/24.87 [2019-03-28 12:06:33,594 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 55.22/24.87 [2019-03-28 12:06:33,594 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 55.22/24.87 [2019-03-28 12:06:33,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 55.22/24.87 [2019-03-28 12:06:33,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 55.22/24.87 [2019-03-28 12:06:33,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 55.22/24.87 [2019-03-28 12:06:33,599 INFO L82 PathProgramCache]: Analyzing trace with hash 621181583, now seen corresponding path program 1 times 55.22/24.87 [2019-03-28 12:06:33,599 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 55.22/24.87 [2019-03-28 12:06:33,599 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 55.22/24.87 [2019-03-28 12:06:33,600 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 55.22/24.87 [2019-03-28 12:06:33,600 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 55.22/24.87 [2019-03-28 12:06:33,600 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 55.22/24.87 [2019-03-28 12:06:33,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 55.22/24.87 [2019-03-28 12:06:33,662 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. 55.22/24.87 [2019-03-28 12:06:33,664 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. 55.22/24.87 [2019-03-28 12:06:33,664 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 55.22/24.87 [2019-03-28 12:06:33,709 INFO L216 LassoAnalysis]: Preferences: 55.22/24.87 [2019-03-28 12:06:33,709 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 55.22/24.87 [2019-03-28 12:06:33,709 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 55.22/24.87 [2019-03-28 12:06:33,709 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 55.22/24.87 [2019-03-28 12:06:33,709 INFO L127 ssoRankerPreferences]: Use exernal solver: true 55.22/24.87 [2019-03-28 12:06:33,710 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 55.22/24.87 [2019-03-28 12:06:33,710 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 55.22/24.87 [2019-03-28 12:06:33,710 INFO L130 ssoRankerPreferences]: Path of dumped script: 55.22/24.87 [2019-03-28 12:06:33,710 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop 55.22/24.87 [2019-03-28 12:06:33,710 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 55.22/24.87 [2019-03-28 12:06:33,710 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 55.22/24.87 [2019-03-28 12:06:33,711 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 55.22/24.87 [2019-03-28 12:06:33,718 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 55.22/24.87 [2019-03-28 12:06:33,720 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 55.22/24.87 [2019-03-28 12:06:33,723 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 55.22/24.87 [2019-03-28 12:06:33,725 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 55.22/24.87 [2019-03-28 12:06:33,727 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 55.22/24.87 [2019-03-28 12:06:33,762 INFO L300 LassoAnalysis]: Preprocessing complete. 55.22/24.87 [2019-03-28 12:06:33,762 INFO L412 LassoAnalysis]: Checking for nontermination... 55.22/24.87 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 55.22/24.87 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 55.22/24.87 Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 55.22/24.87 [2019-03-28 12:06:33,766 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 55.22/24.87 [2019-03-28 12:06:33,766 INFO L163 nArgumentSynthesizer]: Using integer mode. 55.22/24.87 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 55.22/24.87 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 55.22/24.87 Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 55.22/24.87 [2019-03-28 12:06:33,797 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true 55.22/24.87 [2019-03-28 12:06:33,797 INFO L163 nArgumentSynthesizer]: Using integer mode. 55.22/24.87 [2019-03-28 12:06:33,829 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. 55.22/24.87 [2019-03-28 12:06:33,831 INFO L216 LassoAnalysis]: Preferences: 55.22/24.87 [2019-03-28 12:06:33,831 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 55.22/24.87 [2019-03-28 12:06:33,831 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 55.22/24.87 [2019-03-28 12:06:33,831 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 55.22/24.87 [2019-03-28 12:06:33,832 INFO L127 ssoRankerPreferences]: Use exernal solver: false 55.22/24.87 [2019-03-28 12:06:33,832 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 55.22/24.87 [2019-03-28 12:06:33,832 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 55.22/24.87 [2019-03-28 12:06:33,832 INFO L130 ssoRankerPreferences]: Path of dumped script: 55.22/24.87 [2019-03-28 12:06:33,832 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop 55.22/24.87 [2019-03-28 12:06:33,832 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 55.22/24.87 [2019-03-28 12:06:33,832 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 55.22/24.87 [2019-03-28 12:06:33,834 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 55.22/24.87 [2019-03-28 12:06:33,841 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 55.22/24.87 [2019-03-28 12:06:33,843 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 55.22/24.87 [2019-03-28 12:06:33,846 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 55.22/24.87 [2019-03-28 12:06:33,849 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 55.22/24.87 [2019-03-28 12:06:33,851 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 55.22/24.87 [2019-03-28 12:06:33,896 INFO L300 LassoAnalysis]: Preprocessing complete. 55.22/24.87 [2019-03-28 12:06:33,897 INFO L497 LassoAnalysis]: Using template 'affine'. 55.22/24.87 [2019-03-28 12:06:33,897 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 55.22/24.87 Termination analysis: LINEAR_WITH_GUESSES 55.22/24.87 Number of strict supporting invariants: 0 55.22/24.87 Number of non-strict supporting invariants: 1 55.22/24.87 Consider only non-deceasing supporting invariants: true 55.22/24.87 Simplify termination arguments: true 55.22/24.87 Simplify supporting invariants: trueOverapproximate stem: false 55.22/24.87 [2019-03-28 12:06:33,898 INFO L339 nArgumentSynthesizer]: Template has degree 0. 55.22/24.87 [2019-03-28 12:06:33,898 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 55.22/24.87 [2019-03-28 12:06:33,899 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 55.22/24.87 [2019-03-28 12:06:33,899 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 55.22/24.87 [2019-03-28 12:06:33,899 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 55.22/24.87 [2019-03-28 12:06:33,900 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 55.22/24.87 [2019-03-28 12:06:33,900 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 55.22/24.87 [2019-03-28 12:06:33,906 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. 55.22/24.87 [2019-03-28 12:06:33,909 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. 55.22/24.87 [2019-03-28 12:06:33,909 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. 55.22/24.87 [2019-03-28 12:06:33,909 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... 55.22/24.87 [2019-03-28 12:06:33,910 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. 55.22/24.87 [2019-03-28 12:06:33,910 INFO L518 LassoAnalysis]: Proved termination. 55.22/24.87 [2019-03-28 12:06:33,910 INFO L520 LassoAnalysis]: Termination argument consisting of: 55.22/24.87 Ranking function f(rec1_#in~i) = 1*rec1_#in~i 55.22/24.87 Supporting invariants [] 55.22/24.87 [2019-03-28 12:06:33,911 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed 55.22/24.87 [2019-03-28 12:06:33,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 55.22/24.87 [2019-03-28 12:06:33,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 55.22/24.87 [2019-03-28 12:06:33,958 INFO L256 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 8 conjunts are in the unsatisfiable core 55.22/24.87 [2019-03-28 12:06:33,960 INFO L279 TraceCheckSpWp]: Computing forward predicates... 55.22/24.87 [2019-03-28 12:06:33,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 55.22/24.87 [2019-03-28 12:06:33,997 INFO L256 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 7 conjunts are in the unsatisfiable core 55.22/24.87 [2019-03-28 12:06:33,998 INFO L279 TraceCheckSpWp]: Computing forward predicates... 55.22/24.87 [2019-03-28 12:06:34,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. 55.22/24.87 [2019-03-28 12:06:34,070 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization 55.22/24.87 [2019-03-28 12:06:34,070 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.3 stem predicates 3 loop predicates 55.22/24.87 [2019-03-28 12:06:34,071 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 24 states and 31 transitions. cyclomatic complexity: 9 Second operand 5 states. 55.22/24.87 [2019-03-28 12:06:34,230 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 24 states and 31 transitions. cyclomatic complexity: 9. Second operand 5 states. Result 50 states and 65 transitions. Complement of second has 17 states. 55.22/24.87 [2019-03-28 12:06:34,232 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states 55.22/24.87 [2019-03-28 12:06:34,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. 55.22/24.87 [2019-03-28 12:06:34,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 29 transitions. 55.22/24.87 [2019-03-28 12:06:34,234 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 29 transitions. Stem has 10 letters. Loop has 3 letters. 55.22/24.87 [2019-03-28 12:06:34,234 INFO L116 BuchiAccepts]: Finished buchiAccepts. 55.22/24.87 [2019-03-28 12:06:34,235 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 29 transitions. Stem has 13 letters. Loop has 3 letters. 55.22/24.87 [2019-03-28 12:06:34,235 INFO L116 BuchiAccepts]: Finished buchiAccepts. 55.22/24.87 [2019-03-28 12:06:34,235 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 29 transitions. Stem has 10 letters. Loop has 6 letters. 55.22/24.87 [2019-03-28 12:06:34,235 INFO L116 BuchiAccepts]: Finished buchiAccepts. 55.22/24.87 [2019-03-28 12:06:34,237 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 50 states and 65 transitions. 55.22/24.87 [2019-03-28 12:06:34,241 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 55.22/24.87 [2019-03-28 12:06:34,244 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 50 states to 39 states and 53 transitions. 55.22/24.87 [2019-03-28 12:06:34,244 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 27 55.22/24.87 [2019-03-28 12:06:34,245 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 55.22/24.87 [2019-03-28 12:06:34,245 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 53 transitions. 55.22/24.87 [2019-03-28 12:06:34,245 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. 55.22/24.87 [2019-03-28 12:06:34,245 INFO L706 BuchiCegarLoop]: Abstraction has 39 states and 53 transitions. 55.22/24.87 [2019-03-28 12:06:34,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states and 53 transitions. 55.22/24.87 [2019-03-28 12:06:34,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 32. 55.22/24.87 [2019-03-28 12:06:34,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. 55.22/24.87 [2019-03-28 12:06:34,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 41 transitions. 55.22/24.87 [2019-03-28 12:06:34,251 INFO L729 BuchiCegarLoop]: Abstraction has 32 states and 41 transitions. 55.22/24.87 [2019-03-28 12:06:34,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. 55.22/24.87 [2019-03-28 12:06:34,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 55.22/24.87 [2019-03-28 12:06:34,254 INFO L87 Difference]: Start difference. First operand 32 states and 41 transitions. Second operand 6 states. 55.22/24.87 [2019-03-28 12:06:34,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. 55.22/24.87 [2019-03-28 12:06:34,330 INFO L93 Difference]: Finished difference Result 44 states and 56 transitions. 55.22/24.87 [2019-03-28 12:06:34,330 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 55.22/24.87 [2019-03-28 12:06:34,332 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 44 states and 56 transitions. 55.22/24.87 [2019-03-28 12:06:34,336 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 55.22/24.87 [2019-03-28 12:06:34,338 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 44 states to 42 states and 53 transitions. 55.22/24.87 [2019-03-28 12:06:34,338 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 34 55.22/24.87 [2019-03-28 12:06:34,338 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 34 55.22/24.87 [2019-03-28 12:06:34,339 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 53 transitions. 55.22/24.87 [2019-03-28 12:06:34,339 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. 55.22/24.87 [2019-03-28 12:06:34,339 INFO L706 BuchiCegarLoop]: Abstraction has 42 states and 53 transitions. 55.22/24.87 [2019-03-28 12:06:34,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states and 53 transitions. 55.22/24.87 [2019-03-28 12:06:34,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 41. 55.22/24.87 [2019-03-28 12:06:34,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. 55.22/24.87 [2019-03-28 12:06:34,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 52 transitions. 55.22/24.87 [2019-03-28 12:06:34,345 INFO L729 BuchiCegarLoop]: Abstraction has 41 states and 52 transitions. 55.22/24.87 [2019-03-28 12:06:34,345 INFO L609 BuchiCegarLoop]: Abstraction has 41 states and 52 transitions. 55.22/24.87 [2019-03-28 12:06:34,345 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ 55.22/24.87 [2019-03-28 12:06:34,345 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 41 states and 52 transitions. 55.22/24.87 [2019-03-28 12:06:34,347 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 55.22/24.87 [2019-03-28 12:06:34,347 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 55.22/24.87 [2019-03-28 12:06:34,347 INFO L119 BuchiIsEmpty]: Starting construction of run 55.22/24.87 [2019-03-28 12:06:34,349 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] 55.22/24.87 [2019-03-28 12:06:34,349 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [5, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1] 55.22/24.87 [2019-03-28 12:06:34,350 INFO L794 eck$LassoCheckResult]: Stem: 378#ULTIMATE.startENTRY [47] ULTIMATE.startENTRY-->L25: Formula: (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet5_4|) InVars {} OutVars{ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_1|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#t~ret6=|v_ULTIMATE.start_main_#t~ret6_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[|v_ULTIMATE.start_main_#t~nondet5_4|] AssignedVars[ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#res, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_#t~ret6] 350#L25 [56] L25-->rec2ENTRY: Formula: (= |v_rec2_#in~jInParam_2| v_ULTIMATE.start_main_~x~0_5) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} OutVars{rec2_#in~j=|v_rec2_#in~jInParam_2|} AuxVars[] AssignedVars[rec2_#in~j]< 349#rec2ENTRY [38] rec2ENTRY-->L18: Formula: (= v_rec2_~j_1 |v_rec2_#in~j_1|) InVars {rec2_#in~j=|v_rec2_#in~j_1|} OutVars{rec2_~j=v_rec2_~j_1, rec2_#in~j=|v_rec2_#in~j_1|} AuxVars[] AssignedVars[rec2_~j] 351#L18 [64] L18-->L20: Formula: (> v_rec2_~j_3 0) InVars {rec2_~j=v_rec2_~j_3} OutVars{rec2_~j=v_rec2_~j_3} AuxVars[] AssignedVars[] 353#L20 [50] L20-->rec2ENTRY: Formula: (= |v_rec2_#in~jInParam_1| (+ v_rec2_~j_5 (- 1))) InVars {rec2_~j=v_rec2_~j_5} OutVars{rec2_#in~j=|v_rec2_#in~jInParam_1|} AuxVars[] AssignedVars[rec2_#in~j]< 352#rec2ENTRY [38] rec2ENTRY-->L18: Formula: (= v_rec2_~j_1 |v_rec2_#in~j_1|) InVars {rec2_#in~j=|v_rec2_#in~j_1|} OutVars{rec2_~j=v_rec2_~j_1, rec2_#in~j=|v_rec2_#in~j_1|} AuxVars[] AssignedVars[rec2_~j] 355#L18 [64] L18-->L20: Formula: (> v_rec2_~j_3 0) InVars {rec2_~j=v_rec2_~j_3} OutVars{rec2_~j=v_rec2_~j_3} AuxVars[] AssignedVars[] 354#L20 [50] L20-->rec2ENTRY: Formula: (= |v_rec2_#in~jInParam_1| (+ v_rec2_~j_5 (- 1))) InVars {rec2_~j=v_rec2_~j_5} OutVars{rec2_#in~j=|v_rec2_#in~jInParam_1|} AuxVars[] AssignedVars[rec2_#in~j]< 352#rec2ENTRY [38] rec2ENTRY-->L18: Formula: (= v_rec2_~j_1 |v_rec2_#in~j_1|) InVars {rec2_#in~j=|v_rec2_#in~j_1|} OutVars{rec2_~j=v_rec2_~j_1, rec2_#in~j=|v_rec2_#in~j_1|} AuxVars[] AssignedVars[rec2_~j] 356#L18 [53] L18-->rec2FINAL: Formula: (and (<= v_rec2_~j_2 0) (= |v_rec2_#res_2| 0)) InVars {rec2_~j=v_rec2_~j_2} OutVars{rec2_~j=v_rec2_~j_2, rec2_#res=|v_rec2_#res_2|} AuxVars[] AssignedVars[rec2_#res] 379#rec2FINAL [41] rec2FINAL-->rec2EXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 387#rec2EXIT >[62] rec2EXIT-->L20-1: AOR: Formula: (= |v_rec2_#t~ret3_4| |v_rec2_#resOutParam_1|) InVars {rec2_#res=|v_rec2_#resOutParam_1|} OutVars{rec2_#t~ret3=|v_rec2_#t~ret3_4|} AuxVars[] AssignedVars[rec2_#t~ret3] LVA: Formula: (= |v_rec2_#in~jInParam_1| (+ v_rec2_~j_5 (- 1))) InVars {rec2_~j=v_rec2_~j_5} OutVars{rec2_#in~j=|v_rec2_#in~jInParam_1|} AuxVars[] AssignedVars[rec2_#in~j] 358#L20-1 [57] L20-1-->rec1ENTRY: Formula: (= |v_rec1_#in~iInParam_4| |v_rec2_#t~ret3_5|) InVars {rec2_#t~ret3=|v_rec2_#t~ret3_5|} OutVars{rec1_#in~i=|v_rec1_#in~iInParam_4|} AuxVars[] AssignedVars[rec1_#in~i]< 357#rec1ENTRY [39] rec1ENTRY-->L12: Formula: (= v_rec1_~i_1 |v_rec1_#in~i_1|) InVars {rec1_#in~i=|v_rec1_#in~i_1|} OutVars{rec1_#in~i=|v_rec1_#in~i_1|, rec1_~i=v_rec1_~i_1} AuxVars[] AssignedVars[rec1_~i] 359#L12 [44] L12-->rec1FINAL: Formula: (and (<= v_rec1_~i_2 0) (= |v_rec1_#res_1| 0)) InVars {rec1_~i=v_rec1_~i_2} OutVars{rec1_#res=|v_rec1_#res_1|, rec1_~i=v_rec1_~i_2} AuxVars[] AssignedVars[rec1_#res] 364#rec1FINAL [40] rec1FINAL-->rec1EXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 365#rec1EXIT >[61] rec1EXIT-->L20-2: AOR: Formula: (= |v_rec2_#t~ret4_4| |v_rec1_#resOutParam_4|) InVars {rec1_#res=|v_rec1_#resOutParam_4|} OutVars{rec2_#t~ret4=|v_rec2_#t~ret4_4|} AuxVars[] AssignedVars[rec2_#t~ret4] LVA: Formula: (= |v_rec1_#in~iInParam_4| |v_rec2_#t~ret3_5|) InVars {rec2_#t~ret3=|v_rec2_#t~ret3_5|} OutVars{rec1_#in~i=|v_rec1_#in~iInParam_4|} AuxVars[] AssignedVars[rec1_#in~i] 377#L20-2 [55] L20-2-->rec2FINAL: Formula: (= |v_rec2_#res_1| (+ |v_rec2_#t~ret4_3| (- 1))) InVars {rec2_#t~ret4=|v_rec2_#t~ret4_3|} OutVars{rec2_#t~ret3=|v_rec2_#t~ret3_2|, rec2_#t~ret4=|v_rec2_#t~ret4_2|, rec2_#res=|v_rec2_#res_1|} AuxVars[] AssignedVars[rec2_#t~ret3, rec2_#t~ret4, rec2_#res] 366#rec2FINAL [41] rec2FINAL-->rec2EXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 367#rec2EXIT >[62] rec2EXIT-->L20-1: AOR: Formula: (= |v_rec2_#t~ret3_4| |v_rec2_#resOutParam_1|) InVars {rec2_#res=|v_rec2_#resOutParam_1|} OutVars{rec2_#t~ret3=|v_rec2_#t~ret3_4|} AuxVars[] AssignedVars[rec2_#t~ret3] LVA: Formula: (= |v_rec2_#in~jInParam_1| (+ v_rec2_~j_5 (- 1))) InVars {rec2_~j=v_rec2_~j_5} OutVars{rec2_#in~j=|v_rec2_#in~jInParam_1|} AuxVars[] AssignedVars[rec2_#in~j] 370#L20-1 [57] L20-1-->rec1ENTRY: Formula: (= |v_rec1_#in~iInParam_4| |v_rec2_#t~ret3_5|) InVars {rec2_#t~ret3=|v_rec2_#t~ret3_5|} OutVars{rec1_#in~i=|v_rec1_#in~iInParam_4|} AuxVars[] AssignedVars[rec1_#in~i]< 381#rec1ENTRY [39] rec1ENTRY-->L12: Formula: (= v_rec1_~i_1 |v_rec1_#in~i_1|) InVars {rec1_#in~i=|v_rec1_#in~i_1|} OutVars{rec1_#in~i=|v_rec1_#in~i_1|, rec1_~i=v_rec1_~i_1} AuxVars[] AssignedVars[rec1_~i] 362#L12 [65] L12-->L14: Formula: (> v_rec1_~i_3 0) InVars {rec1_~i=v_rec1_~i_3} OutVars{rec1_~i=v_rec1_~i_3} AuxVars[] AssignedVars[] 361#L14 [48] L14-->rec1ENTRY: Formula: (= |v_rec1_#in~iInParam_1| (+ v_rec1_~i_5 (- 2))) InVars {rec1_~i=v_rec1_~i_5} OutVars{rec1_#in~i=|v_rec1_#in~iInParam_1|} AuxVars[] AssignedVars[rec1_#in~i]< 360#rec1ENTRY [39] rec1ENTRY-->L12: Formula: (= v_rec1_~i_1 |v_rec1_#in~i_1|) InVars {rec1_#in~i=|v_rec1_#in~i_1|} OutVars{rec1_#in~i=|v_rec1_#in~i_1|, rec1_~i=v_rec1_~i_1} AuxVars[] AssignedVars[rec1_~i] 363#L12 [44] L12-->rec1FINAL: Formula: (and (<= v_rec1_~i_2 0) (= |v_rec1_#res_1| 0)) InVars {rec1_~i=v_rec1_~i_2} OutVars{rec1_#res=|v_rec1_#res_1|, rec1_~i=v_rec1_~i_2} AuxVars[] AssignedVars[rec1_#res] 388#rec1FINAL [40] rec1FINAL-->rec1EXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 385#rec1EXIT >[59] rec1EXIT-->L14-1: AOR: Formula: (= |v_rec1_#t~ret0_4| |v_rec1_#resOutParam_1|) InVars {rec1_#res=|v_rec1_#resOutParam_1|} OutVars{rec1_#t~ret0=|v_rec1_#t~ret0_4|} AuxVars[] AssignedVars[rec1_#t~ret0] LVA: Formula: (= |v_rec1_#in~iInParam_1| (+ v_rec1_~i_5 (- 2))) InVars {rec1_~i=v_rec1_~i_5} OutVars{rec1_#in~i=|v_rec1_#in~iInParam_1|} AuxVars[] AssignedVars[rec1_#in~i] 368#L14-1 55.22/24.87 [2019-03-28 12:06:34,351 INFO L796 eck$LassoCheckResult]: Loop: 368#L14-1 [42] L14-1-->rec1ENTRY: Formula: (= |v_rec1_#in~iInParam_2| (+ |v_rec1_#t~ret0_5| (- 1))) InVars {rec1_#t~ret0=|v_rec1_#t~ret0_5|} OutVars{rec1_#in~i=|v_rec1_#in~iInParam_2|} AuxVars[] AssignedVars[rec1_#in~i]< 373#rec1ENTRY [39] rec1ENTRY-->L12: Formula: (= v_rec1_~i_1 |v_rec1_#in~i_1|) InVars {rec1_#in~i=|v_rec1_#in~i_1|} OutVars{rec1_#in~i=|v_rec1_#in~i_1|, rec1_~i=v_rec1_~i_1} AuxVars[] AssignedVars[rec1_~i] 383#L12 [65] L12-->L14: Formula: (> v_rec1_~i_3 0) InVars {rec1_~i=v_rec1_~i_3} OutVars{rec1_~i=v_rec1_~i_3} AuxVars[] AssignedVars[] 371#L14 [48] L14-->rec1ENTRY: Formula: (= |v_rec1_#in~iInParam_1| (+ v_rec1_~i_5 (- 2))) InVars {rec1_~i=v_rec1_~i_5} OutVars{rec1_#in~i=|v_rec1_#in~iInParam_1|} AuxVars[] AssignedVars[rec1_#in~i]< 373#rec1ENTRY [39] rec1ENTRY-->L12: Formula: (= v_rec1_~i_1 |v_rec1_#in~i_1|) InVars {rec1_#in~i=|v_rec1_#in~i_1|} OutVars{rec1_#in~i=|v_rec1_#in~i_1|, rec1_~i=v_rec1_~i_1} AuxVars[] AssignedVars[rec1_~i] 383#L12 [65] L12-->L14: Formula: (> v_rec1_~i_3 0) InVars {rec1_~i=v_rec1_~i_3} OutVars{rec1_~i=v_rec1_~i_3} AuxVars[] AssignedVars[] 371#L14 [48] L14-->rec1ENTRY: Formula: (= |v_rec1_#in~iInParam_1| (+ v_rec1_~i_5 (- 2))) InVars {rec1_~i=v_rec1_~i_5} OutVars{rec1_#in~i=|v_rec1_#in~iInParam_1|} AuxVars[] AssignedVars[rec1_#in~i]< 373#rec1ENTRY [39] rec1ENTRY-->L12: Formula: (= v_rec1_~i_1 |v_rec1_#in~i_1|) InVars {rec1_#in~i=|v_rec1_#in~i_1|} OutVars{rec1_#in~i=|v_rec1_#in~i_1|, rec1_~i=v_rec1_~i_1} AuxVars[] AssignedVars[rec1_~i] 383#L12 [44] L12-->rec1FINAL: Formula: (and (<= v_rec1_~i_2 0) (= |v_rec1_#res_1| 0)) InVars {rec1_~i=v_rec1_~i_2} OutVars{rec1_#res=|v_rec1_#res_1|, rec1_~i=v_rec1_~i_2} AuxVars[] AssignedVars[rec1_#res] 384#rec1FINAL [40] rec1FINAL-->rec1EXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 380#rec1EXIT >[59] rec1EXIT-->L14-1: AOR: Formula: (= |v_rec1_#t~ret0_4| |v_rec1_#resOutParam_1|) InVars {rec1_#res=|v_rec1_#resOutParam_1|} OutVars{rec1_#t~ret0=|v_rec1_#t~ret0_4|} AuxVars[] AssignedVars[rec1_#t~ret0] LVA: Formula: (= |v_rec1_#in~iInParam_1| (+ v_rec1_~i_5 (- 2))) InVars {rec1_~i=v_rec1_~i_5} OutVars{rec1_#in~i=|v_rec1_#in~iInParam_1|} AuxVars[] AssignedVars[rec1_#in~i] 368#L14-1 [42] L14-1-->rec1ENTRY: Formula: (= |v_rec1_#in~iInParam_2| (+ |v_rec1_#t~ret0_5| (- 1))) InVars {rec1_#t~ret0=|v_rec1_#t~ret0_5|} OutVars{rec1_#in~i=|v_rec1_#in~iInParam_2|} AuxVars[] AssignedVars[rec1_#in~i]< 373#rec1ENTRY [39] rec1ENTRY-->L12: Formula: (= v_rec1_~i_1 |v_rec1_#in~i_1|) InVars {rec1_#in~i=|v_rec1_#in~i_1|} OutVars{rec1_#in~i=|v_rec1_#in~i_1|, rec1_~i=v_rec1_~i_1} AuxVars[] AssignedVars[rec1_~i] 383#L12 [44] L12-->rec1FINAL: Formula: (and (<= v_rec1_~i_2 0) (= |v_rec1_#res_1| 0)) InVars {rec1_~i=v_rec1_~i_2} OutVars{rec1_#res=|v_rec1_#res_1|, rec1_~i=v_rec1_~i_2} AuxVars[] AssignedVars[rec1_#res] 384#rec1FINAL [40] rec1FINAL-->rec1EXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 380#rec1EXIT >[58] rec1EXIT-->L14-2: AOR: Formula: (= |v_rec1_#t~ret1_4| |v_rec1_#resOutParam_2|) InVars {rec1_#res=|v_rec1_#resOutParam_2|} OutVars{rec1_#t~ret1=|v_rec1_#t~ret1_4|} AuxVars[] AssignedVars[rec1_#t~ret1] LVA: Formula: (= |v_rec1_#in~iInParam_2| (+ |v_rec1_#t~ret0_5| (- 1))) InVars {rec1_#t~ret0=|v_rec1_#t~ret0_5|} OutVars{rec1_#in~i=|v_rec1_#in~iInParam_2|} AuxVars[] AssignedVars[rec1_#in~i] 369#L14-2 [46] L14-2-->rec1ENTRY: Formula: (= |v_rec1_#in~iInParam_3| |v_rec1_#t~ret1_5|) InVars {rec1_#t~ret1=|v_rec1_#t~ret1_5|} OutVars{rec1_#in~i=|v_rec1_#in~iInParam_3|} AuxVars[] AssignedVars[rec1_#in~i]< 373#rec1ENTRY [39] rec1ENTRY-->L12: Formula: (= v_rec1_~i_1 |v_rec1_#in~i_1|) InVars {rec1_#in~i=|v_rec1_#in~i_1|} OutVars{rec1_#in~i=|v_rec1_#in~i_1|, rec1_~i=v_rec1_~i_1} AuxVars[] AssignedVars[rec1_~i] 383#L12 [44] L12-->rec1FINAL: Formula: (and (<= v_rec1_~i_2 0) (= |v_rec1_#res_1| 0)) InVars {rec1_~i=v_rec1_~i_2} OutVars{rec1_#res=|v_rec1_#res_1|, rec1_~i=v_rec1_~i_2} AuxVars[] AssignedVars[rec1_#res] 384#rec1FINAL [40] rec1FINAL-->rec1EXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 380#rec1EXIT >[63] rec1EXIT-->L14-3: AOR: Formula: (= |v_rec1_#t~ret2_4| |v_rec1_#resOutParam_3|) InVars {rec1_#res=|v_rec1_#resOutParam_3|} OutVars{rec1_#t~ret2=|v_rec1_#t~ret2_4|} AuxVars[] AssignedVars[rec1_#t~ret2] LVA: Formula: (= |v_rec1_#in~iInParam_3| |v_rec1_#t~ret1_5|) InVars {rec1_#t~ret1=|v_rec1_#t~ret1_5|} OutVars{rec1_#in~i=|v_rec1_#in~iInParam_3|} AuxVars[] AssignedVars[rec1_#in~i] 374#L14-3 [43] L14-3-->rec1FINAL: Formula: (= |v_rec1_#res_2| (+ |v_rec1_#t~ret2_3| 1)) InVars {rec1_#t~ret2=|v_rec1_#t~ret2_3|} OutVars{rec1_#t~ret1=|v_rec1_#t~ret1_3|, rec1_#t~ret2=|v_rec1_#t~ret2_2|, rec1_#res=|v_rec1_#res_2|, rec1_#t~ret0=|v_rec1_#t~ret0_3|} AuxVars[] AssignedVars[rec1_#t~ret1, rec1_#t~ret2, rec1_#res, rec1_#t~ret0] 375#rec1FINAL [40] rec1FINAL-->rec1EXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 386#rec1EXIT >[59] rec1EXIT-->L14-1: AOR: Formula: (= |v_rec1_#t~ret0_4| |v_rec1_#resOutParam_1|) InVars {rec1_#res=|v_rec1_#resOutParam_1|} OutVars{rec1_#t~ret0=|v_rec1_#t~ret0_4|} AuxVars[] AssignedVars[rec1_#t~ret0] LVA: Formula: (= |v_rec1_#in~iInParam_1| (+ v_rec1_~i_5 (- 2))) InVars {rec1_~i=v_rec1_~i_5} OutVars{rec1_#in~i=|v_rec1_#in~iInParam_1|} AuxVars[] AssignedVars[rec1_#in~i] 368#L14-1 55.22/24.87 [2019-03-28 12:06:34,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 55.22/24.87 [2019-03-28 12:06:34,351 INFO L82 PathProgramCache]: Analyzing trace with hash 111914908, now seen corresponding path program 1 times 55.22/24.87 [2019-03-28 12:06:34,351 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 55.22/24.87 [2019-03-28 12:06:34,352 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 55.22/24.87 [2019-03-28 12:06:34,353 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 55.22/24.87 [2019-03-28 12:06:34,353 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 55.22/24.87 [2019-03-28 12:06:34,353 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 55.22/24.87 [2019-03-28 12:06:34,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 55.22/24.87 [2019-03-28 12:06:34,422 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. 55.22/24.87 [2019-03-28 12:06:34,423 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. 55.22/24.87 [2019-03-28 12:06:34,423 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP 55.22/24.87 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 55.22/24.87 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) 55.22/24.87 Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 55.22/24.87 [2019-03-28 12:06:34,434 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 55.22/24.87 [2019-03-28 12:06:34,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 55.22/24.87 [2019-03-28 12:06:34,447 INFO L256 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 7 conjunts are in the unsatisfiable core 55.22/24.87 [2019-03-28 12:06:34,450 INFO L279 TraceCheckSpWp]: Computing forward predicates... 55.22/24.87 [2019-03-28 12:06:34,459 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. 55.22/24.87 [2019-03-28 12:06:34,485 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. 55.22/24.87 [2019-03-28 12:06:34,486 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 8 55.22/24.87 [2019-03-28 12:06:34,486 INFO L799 eck$LassoCheckResult]: stem already infeasible 55.22/24.87 [2019-03-28 12:06:34,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 55.22/24.87 [2019-03-28 12:06:34,487 INFO L82 PathProgramCache]: Analyzing trace with hash -502759724, now seen corresponding path program 1 times 55.22/24.87 [2019-03-28 12:06:34,487 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 55.22/24.87 [2019-03-28 12:06:34,487 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 55.22/24.87 [2019-03-28 12:06:34,488 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 55.22/24.87 [2019-03-28 12:06:34,488 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 55.22/24.87 [2019-03-28 12:06:34,488 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 55.22/24.87 [2019-03-28 12:06:34,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 55.22/24.87 [2019-03-28 12:06:34,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 55.22/24.87 [2019-03-28 12:06:34,764 INFO L216 LassoAnalysis]: Preferences: 55.22/24.87 [2019-03-28 12:06:34,765 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 55.22/24.87 [2019-03-28 12:06:34,765 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 55.22/24.87 [2019-03-28 12:06:34,765 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 55.22/24.87 [2019-03-28 12:06:34,765 INFO L127 ssoRankerPreferences]: Use exernal solver: true 55.22/24.87 [2019-03-28 12:06:34,765 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 55.22/24.87 [2019-03-28 12:06:34,765 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 55.22/24.87 [2019-03-28 12:06:34,765 INFO L130 ssoRankerPreferences]: Path of dumped script: 55.22/24.87 [2019-03-28 12:06:34,766 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop 55.22/24.87 [2019-03-28 12:06:34,766 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 55.22/24.87 [2019-03-28 12:06:34,766 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 55.22/24.87 [2019-03-28 12:06:34,767 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 55.22/24.87 [2019-03-28 12:06:34,769 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 55.22/24.87 [2019-03-28 12:06:34,770 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 55.22/24.87 [2019-03-28 12:06:34,772 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 55.22/24.87 [2019-03-28 12:06:34,814 INFO L300 LassoAnalysis]: Preprocessing complete. 55.22/24.87 [2019-03-28 12:06:34,814 INFO L412 LassoAnalysis]: Checking for nontermination... 55.22/24.87 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 55.22/24.87 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 55.22/24.87 Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 55.22/24.87 [2019-03-28 12:06:34,819 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 55.22/24.87 [2019-03-28 12:06:34,819 INFO L163 nArgumentSynthesizer]: Using integer mode. 55.22/24.87 [2019-03-28 12:06:34,824 INFO L445 LassoAnalysis]: Proved nontermination for one component. 55.22/24.87 [2019-03-28 12:06:34,824 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec1_#res=0} Honda state: {rec1_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 55.22/24.87 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 55.22/24.87 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 55.22/24.87 Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 55.22/24.87 [2019-03-28 12:06:34,852 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 55.22/24.87 [2019-03-28 12:06:34,852 INFO L163 nArgumentSynthesizer]: Using integer mode. 55.22/24.87 [2019-03-28 12:06:34,855 INFO L445 LassoAnalysis]: Proved nontermination for one component. 55.22/24.87 [2019-03-28 12:06:34,855 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec1_#t~ret1=0} Honda state: {rec1_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 55.22/24.87 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 55.22/24.87 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 55.22/24.87 Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 55.22/24.87 [2019-03-28 12:06:34,883 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 55.22/24.87 [2019-03-28 12:06:34,883 INFO L163 nArgumentSynthesizer]: Using integer mode. 55.22/24.87 [2019-03-28 12:06:34,886 INFO L445 LassoAnalysis]: Proved nontermination for one component. 55.22/24.87 [2019-03-28 12:06:34,886 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec1_#t~ret2=0} Honda state: {rec1_#t~ret2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 55.22/24.87 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 55.22/24.87 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 55.22/24.87 Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 55.22/24.87 [2019-03-28 12:06:34,913 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 55.22/24.87 [2019-03-28 12:06:34,913 INFO L163 nArgumentSynthesizer]: Using integer mode. 55.22/24.87 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 55.22/24.87 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 55.22/24.87 Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 55.22/24.87 [2019-03-28 12:06:34,944 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true 55.22/24.87 [2019-03-28 12:06:34,944 INFO L163 nArgumentSynthesizer]: Using integer mode. 55.22/24.87 [2019-03-28 12:06:40,113 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. 55.22/24.87 [2019-03-28 12:06:40,116 INFO L216 LassoAnalysis]: Preferences: 55.22/24.87 [2019-03-28 12:06:40,116 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 55.22/24.87 [2019-03-28 12:06:40,117 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 55.22/24.87 [2019-03-28 12:06:40,117 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 55.22/24.87 [2019-03-28 12:06:40,117 INFO L127 ssoRankerPreferences]: Use exernal solver: false 55.22/24.87 [2019-03-28 12:06:40,117 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 55.22/24.87 [2019-03-28 12:06:40,117 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 55.22/24.87 [2019-03-28 12:06:40,117 INFO L130 ssoRankerPreferences]: Path of dumped script: 55.22/24.87 [2019-03-28 12:06:40,117 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop 55.22/24.87 [2019-03-28 12:06:40,117 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 55.22/24.87 [2019-03-28 12:06:40,118 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 55.22/24.87 [2019-03-28 12:06:40,119 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 55.22/24.87 [2019-03-28 12:06:40,121 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 55.22/24.87 [2019-03-28 12:06:40,123 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 55.22/24.87 [2019-03-28 12:06:40,124 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 55.22/24.87 [2019-03-28 12:06:40,164 INFO L300 LassoAnalysis]: Preprocessing complete. 55.22/24.87 [2019-03-28 12:06:40,165 INFO L497 LassoAnalysis]: Using template 'affine'. 55.22/24.87 [2019-03-28 12:06:40,165 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 55.22/24.87 Termination analysis: LINEAR_WITH_GUESSES 55.22/24.87 Number of strict supporting invariants: 0 55.22/24.87 Number of non-strict supporting invariants: 1 55.22/24.87 Consider only non-deceasing supporting invariants: true 55.22/24.87 Simplify termination arguments: true 55.22/24.87 Simplify supporting invariants: trueOverapproximate stem: false 55.22/24.87 [2019-03-28 12:06:40,166 INFO L339 nArgumentSynthesizer]: Template has degree 0. 55.22/24.87 [2019-03-28 12:06:40,166 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 55.22/24.87 [2019-03-28 12:06:40,166 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 55.22/24.87 [2019-03-28 12:06:40,166 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 55.22/24.87 [2019-03-28 12:06:40,167 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 55.22/24.87 [2019-03-28 12:06:40,167 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 55.22/24.87 [2019-03-28 12:06:40,167 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 55.22/24.87 [2019-03-28 12:06:40,169 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. 55.22/24.87 [2019-03-28 12:06:40,169 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 55.22/24.87 Termination analysis: LINEAR_WITH_GUESSES 55.22/24.87 Number of strict supporting invariants: 0 55.22/24.87 Number of non-strict supporting invariants: 1 55.22/24.87 Consider only non-deceasing supporting invariants: true 55.22/24.87 Simplify termination arguments: true 55.22/24.87 Simplify supporting invariants: trueOverapproximate stem: false 55.22/24.87 [2019-03-28 12:06:40,169 INFO L339 nArgumentSynthesizer]: Template has degree 0. 55.22/24.87 [2019-03-28 12:06:40,169 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 55.22/24.87 [2019-03-28 12:06:40,170 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 55.22/24.87 [2019-03-28 12:06:40,170 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 55.22/24.87 [2019-03-28 12:06:40,170 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 55.22/24.87 [2019-03-28 12:06:40,170 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 55.22/24.87 [2019-03-28 12:06:40,171 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 55.22/24.87 [2019-03-28 12:06:40,171 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. 55.22/24.87 [2019-03-28 12:06:40,172 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 55.22/24.87 Termination analysis: LINEAR_WITH_GUESSES 55.22/24.87 Number of strict supporting invariants: 0 55.22/24.87 Number of non-strict supporting invariants: 1 55.22/24.87 Consider only non-deceasing supporting invariants: true 55.22/24.87 Simplify termination arguments: true 55.22/24.87 Simplify supporting invariants: trueOverapproximate stem: false 55.22/24.87 [2019-03-28 12:06:40,172 INFO L339 nArgumentSynthesizer]: Template has degree 0. 55.22/24.87 [2019-03-28 12:06:40,172 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 55.22/24.87 [2019-03-28 12:06:40,173 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 55.22/24.87 [2019-03-28 12:06:40,173 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 55.22/24.87 [2019-03-28 12:06:40,173 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 55.22/24.87 [2019-03-28 12:06:40,173 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 55.22/24.87 [2019-03-28 12:06:40,173 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 55.22/24.87 [2019-03-28 12:06:40,174 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. 55.22/24.87 [2019-03-28 12:06:40,175 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 55.22/24.87 Termination analysis: LINEAR_WITH_GUESSES 55.22/24.87 Number of strict supporting invariants: 0 55.22/24.87 Number of non-strict supporting invariants: 1 55.22/24.87 Consider only non-deceasing supporting invariants: true 55.22/24.87 Simplify termination arguments: true 55.22/24.87 Simplify supporting invariants: trueOverapproximate stem: false 55.22/24.87 [2019-03-28 12:06:40,175 INFO L339 nArgumentSynthesizer]: Template has degree 0. 55.22/24.87 [2019-03-28 12:06:40,176 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 55.22/24.87 [2019-03-28 12:06:40,176 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 55.22/24.87 [2019-03-28 12:06:40,176 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 55.22/24.87 [2019-03-28 12:06:40,176 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 55.22/24.87 [2019-03-28 12:06:40,177 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 55.22/24.87 [2019-03-28 12:06:40,177 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 55.22/24.87 [2019-03-28 12:06:40,184 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. 55.22/24.87 [2019-03-28 12:06:40,188 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. 55.22/24.87 [2019-03-28 12:06:40,189 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. 55.22/24.87 [2019-03-28 12:06:40,189 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... 55.22/24.87 [2019-03-28 12:06:40,189 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. 55.22/24.87 [2019-03-28 12:06:40,190 INFO L518 LassoAnalysis]: Proved termination. 55.22/24.87 [2019-03-28 12:06:40,190 INFO L520 LassoAnalysis]: Termination argument consisting of: 55.22/24.87 Ranking function f(rec1_#t~ret0) = 1*rec1_#t~ret0 55.22/24.87 Supporting invariants [] 55.22/24.87 [2019-03-28 12:06:40,190 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed 55.22/24.87 [2019-03-28 12:06:40,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 55.22/24.87 [2019-03-28 12:06:40,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 55.22/24.87 [2019-03-28 12:06:40,240 INFO L256 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 14 conjunts are in the unsatisfiable core 55.22/24.87 [2019-03-28 12:06:40,243 INFO L279 TraceCheckSpWp]: Computing forward predicates... 55.22/24.87 [2019-03-28 12:06:40,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 55.22/24.87 [2019-03-28 12:06:40,303 INFO L256 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 21 conjunts are in the unsatisfiable core 55.22/24.87 [2019-03-28 12:06:40,306 INFO L279 TraceCheckSpWp]: Computing forward predicates... 55.22/24.87 [2019-03-28 12:06:40,418 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 15 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. 55.22/24.87 [2019-03-28 12:06:40,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 55.22/24.87 [2019-03-28 12:06:40,543 INFO L256 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 7 conjunts are in the unsatisfiable core 55.22/24.87 [2019-03-28 12:06:40,545 INFO L279 TraceCheckSpWp]: Computing forward predicates... 55.22/24.87 [2019-03-28 12:06:40,610 INFO L98 LoopCannibalizer]: 9 predicates before loop cannibalization 13 predicates after loop cannibalization 55.22/24.87 [2019-03-28 12:06:40,611 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.3 stem predicates 13 loop predicates 55.22/24.87 [2019-03-28 12:06:40,611 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 41 states and 52 transitions. cyclomatic complexity: 14 Second operand 11 states. 55.22/24.87 [2019-03-28 12:06:50,441 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 41 states and 52 transitions. cyclomatic complexity: 14. Second operand 11 states. Result 56057 states and 121948 transitions. Complement of second has 43358 states. 55.22/24.87 [2019-03-28 12:06:50,442 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 37 states 2 stem states 32 non-accepting loop states 2 accepting loop states 55.22/24.87 [2019-03-28 12:06:50,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. 55.22/24.87 [2019-03-28 12:06:50,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 179 transitions. 55.22/24.87 [2019-03-28 12:06:50,446 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 37 states and 179 transitions. Stem has 28 letters. Loop has 24 letters. 55.22/24.87 [2019-03-28 12:06:50,450 INFO L116 BuchiAccepts]: Finished buchiAccepts. 55.22/24.87 [2019-03-28 12:06:50,450 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 37 states and 179 transitions. Stem has 52 letters. Loop has 24 letters. 55.22/24.87 [2019-03-28 12:06:50,455 INFO L116 BuchiAccepts]: Finished buchiAccepts. 55.22/24.87 [2019-03-28 12:06:50,455 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 37 states and 179 transitions. Stem has 28 letters. Loop has 48 letters. 55.22/24.87 [2019-03-28 12:06:50,459 INFO L116 BuchiAccepts]: Finished buchiAccepts. 55.22/24.87 [2019-03-28 12:06:50,463 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 56057 states and 121948 transitions. 55.22/24.87 [2019-03-28 12:06:51,927 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 126 55.22/24.87 [2019-03-28 12:06:51,948 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 56057 states to 691 states and 1177 transitions. 55.22/24.87 [2019-03-28 12:06:51,948 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 634 55.22/24.87 [2019-03-28 12:06:51,951 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 657 55.22/24.87 [2019-03-28 12:06:51,951 INFO L73 IsDeterministic]: Start isDeterministic. Operand 691 states and 1177 transitions. 55.22/24.87 [2019-03-28 12:06:51,952 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. 55.22/24.87 [2019-03-28 12:06:51,952 INFO L706 BuchiCegarLoop]: Abstraction has 691 states and 1177 transitions. 55.22/24.87 [2019-03-28 12:06:51,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states and 1177 transitions. 55.22/24.87 [2019-03-28 12:06:51,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 230. 55.22/24.87 [2019-03-28 12:06:51,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. 55.22/24.87 [2019-03-28 12:06:51,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 338 transitions. 55.22/24.87 [2019-03-28 12:06:51,995 INFO L729 BuchiCegarLoop]: Abstraction has 230 states and 338 transitions. 55.22/24.87 [2019-03-28 12:06:51,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. 55.22/24.87 [2019-03-28 12:06:51,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 55.22/24.87 [2019-03-28 12:06:51,996 INFO L87 Difference]: Start difference. First operand 230 states and 338 transitions. Second operand 8 states. 55.22/24.87 [2019-03-28 12:06:52,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. 55.22/24.87 [2019-03-28 12:06:52,124 INFO L93 Difference]: Finished difference Result 27 states and 29 transitions. 55.22/24.87 [2019-03-28 12:06:52,124 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 55.22/24.87 [2019-03-28 12:06:52,128 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 29 transitions. 55.22/24.87 [2019-03-28 12:06:52,129 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 55.22/24.87 [2019-03-28 12:06:52,129 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 0 states and 0 transitions. 55.22/24.87 [2019-03-28 12:06:52,129 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 55.22/24.87 [2019-03-28 12:06:52,129 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 55.22/24.87 [2019-03-28 12:06:52,129 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. 55.22/24.87 [2019-03-28 12:06:52,129 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. 55.22/24.87 [2019-03-28 12:06:52,129 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. 55.22/24.87 [2019-03-28 12:06:52,129 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. 55.22/24.87 [2019-03-28 12:06:52,130 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. 55.22/24.87 [2019-03-28 12:06:52,130 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ 55.22/24.87 [2019-03-28 12:06:52,130 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. 55.22/24.87 [2019-03-28 12:06:52,130 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 55.22/24.87 [2019-03-28 12:06:52,130 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true 55.22/24.87 [2019-03-28 12:06:52,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.03 12:06:52 BasicIcfg 55.22/24.87 [2019-03-28 12:06:52,136 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- 55.22/24.87 [2019-03-28 12:06:52,137 INFO L168 Benchmark]: Toolchain (without parser) took 20352.68 ms. Allocated memory was 649.6 MB in the beginning and 2.4 GB in the end (delta: 1.8 GB). Free memory was 563.8 MB in the beginning and 1.4 GB in the end (delta: -866.1 MB). Peak memory consumption was 897.1 MB. Max. memory is 50.3 GB. 55.22/24.87 [2019-03-28 12:06:52,139 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. 55.22/24.87 [2019-03-28 12:06:52,139 INFO L168 Benchmark]: CACSL2BoogieTranslator took 296.12 ms. Allocated memory was 649.6 MB in the beginning and 676.9 MB in the end (delta: 27.3 MB). Free memory was 563.8 MB in the beginning and 644.3 MB in the end (delta: -80.6 MB). Peak memory consumption was 31.4 MB. Max. memory is 50.3 GB. 55.22/24.87 [2019-03-28 12:06:52,140 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.84 ms. Allocated memory is still 676.9 MB. Free memory was 644.3 MB in the beginning and 643.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. 55.22/24.87 [2019-03-28 12:06:52,140 INFO L168 Benchmark]: Boogie Preprocessor took 18.11 ms. Allocated memory is still 676.9 MB. Free memory was 643.0 MB in the beginning and 641.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. 55.22/24.87 [2019-03-28 12:06:52,141 INFO L168 Benchmark]: RCFGBuilder took 237.08 ms. Allocated memory is still 676.9 MB. Free memory was 641.6 MB in the beginning and 625.6 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 50.3 GB. 55.22/24.87 [2019-03-28 12:06:52,141 INFO L168 Benchmark]: BlockEncodingV2 took 77.59 ms. Allocated memory is still 676.9 MB. Free memory was 625.6 MB in the beginning and 620.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. 55.22/24.87 [2019-03-28 12:06:52,142 INFO L168 Benchmark]: TraceAbstraction took 186.46 ms. Allocated memory is still 676.9 MB. Free memory was 620.2 MB in the beginning and 608.1 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 50.3 GB. 55.22/24.87 [2019-03-28 12:06:52,142 INFO L168 Benchmark]: BuchiAutomizer took 19495.38 ms. Allocated memory was 676.9 MB in the beginning and 2.4 GB in the end (delta: 1.7 GB). Free memory was 608.1 MB in the beginning and 1.4 GB in the end (delta: -821.8 MB). Peak memory consumption was 914.2 MB. Max. memory is 50.3 GB. 55.22/24.87 [2019-03-28 12:06:52,147 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### 55.22/24.87 --- Results --- 55.22/24.87 * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: 55.22/24.87 - StatisticsResult: Initial Icfg 55.22/24.87 21 locations, 26 edges 55.22/24.87 - StatisticsResult: Encoded RCFG 55.22/24.87 17 locations, 22 edges 55.22/24.87 * Results from de.uni_freiburg.informatik.ultimate.core: 55.22/24.87 - StatisticsResult: Toolchain Benchmarks 55.22/24.87 Benchmark results are: 55.22/24.87 * 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. 55.22/24.87 * CACSL2BoogieTranslator took 296.12 ms. Allocated memory was 649.6 MB in the beginning and 676.9 MB in the end (delta: 27.3 MB). Free memory was 563.8 MB in the beginning and 644.3 MB in the end (delta: -80.6 MB). Peak memory consumption was 31.4 MB. Max. memory is 50.3 GB. 55.22/24.87 * Boogie Procedure Inliner took 36.84 ms. Allocated memory is still 676.9 MB. Free memory was 644.3 MB in the beginning and 643.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. 55.22/24.87 * Boogie Preprocessor took 18.11 ms. Allocated memory is still 676.9 MB. Free memory was 643.0 MB in the beginning and 641.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. 55.22/24.87 * RCFGBuilder took 237.08 ms. Allocated memory is still 676.9 MB. Free memory was 641.6 MB in the beginning and 625.6 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 50.3 GB. 55.22/24.87 * BlockEncodingV2 took 77.59 ms. Allocated memory is still 676.9 MB. Free memory was 625.6 MB in the beginning and 620.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. 55.22/24.87 * TraceAbstraction took 186.46 ms. Allocated memory is still 676.9 MB. Free memory was 620.2 MB in the beginning and 608.1 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 50.3 GB. 55.22/24.87 * BuchiAutomizer took 19495.38 ms. Allocated memory was 676.9 MB in the beginning and 2.4 GB in the end (delta: 1.7 GB). Free memory was 608.1 MB in the beginning and 1.4 GB in the end (delta: -821.8 MB). Peak memory consumption was 914.2 MB. Max. memory is 50.3 GB. 55.22/24.87 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: 55.22/24.87 - AllSpecificationsHoldResult: All specifications hold 55.22/24.87 We were not able to verify any specifiation because the program does not contain any specification. 55.22/24.87 - StatisticsResult: Ultimate Automizer benchmark data 55.22/24.87 CFG has 3 procedures, 17 locations, 0 error locations. SAFE Result, 0.1s OverallTime, 0 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 23 PreInvPairs, 23 NumberOfFragments, 8 HoareAnnotationTreeSize, 23 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available 55.22/24.87 - StatisticsResult: Constructed decomposition of program 55.22/24.87 Your program was decomposed into 5 terminating modules (2 trivial, 0 deterministic, 3 nondeterministic). One nondeterministic module has affine ranking function \old(j) and consists of 5 locations. One nondeterministic module has affine ranking function \old(i) and consists of 6 locations. One nondeterministic module has affine ranking function org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@46905bb9 and consists of 37 locations. 2 modules have a trivial ranking function, the largest among these consists of 8 locations. 55.22/24.87 - StatisticsResult: Timing statistics 55.22/24.87 BüchiAutomizer plugin needed 19.4s and 4 iterations. TraceHistogramMax:5. Analysis of lassos took 6.7s. Construction of modules took 0.7s. Büchi inclusion checks took 10.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 470 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 1.5s Buchi closure took 0.0s. Biggest automaton had 41 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 19/34 HoareTripleCheckerStatistics: 105 SDtfs, 137 SDslu, 321 SDs, 0 SdLazy, 680 SolverSat, 201 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT1 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital13 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq164 hnf92 smp100 dnf100 smp100 tf111 neg100 sie109 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 12ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 5.3s 55.22/24.87 - TerminationAnalysisResult: Termination proven 55.22/24.87 Buchi Automizer proved that your program is terminating 55.22/24.87 RESULT: Ultimate proved your program to be correct! 55.22/24.87 !SESSION 2019-03-28 12:06:28.527 ----------------------------------------------- 55.22/24.87 eclipse.buildId=unknown 55.22/24.87 java.version=1.8.0_181 55.22/24.87 java.vendor=Oracle Corporation 55.22/24.87 BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US 55.22/24.87 Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox/benchmark/theBenchmark.c 55.22/24.87 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 55.22/24.87 55.22/24.87 !ENTRY org.eclipse.core.resources 2 10035 2019-03-28 12:06:52.379 55.22/24.87 !MESSAGE The workspace will exit with unsaved changes in this session. 55.22/24.87 Received shutdown request... 55.22/24.87 Ultimate: 55.22/24.87 GTK+ Version Check 55.22/24.87 EOF