17.07/7.96 YES 17.07/7.96 17.07/7.96 Ultimate: Cannot open display: 17.07/7.96 This is Ultimate 0.1.24-8dc7c08-m 17.07/7.96 [2019-03-29 02:01:14,880 INFO L170 SettingsManager]: Resetting all preferences to default values... 17.07/7.96 [2019-03-29 02:01:14,882 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values 17.07/7.96 [2019-03-29 02:01:14,893 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 17.07/7.96 [2019-03-29 02:01:14,893 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values 17.07/7.96 [2019-03-29 02:01:14,894 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values 17.07/7.96 [2019-03-29 02:01:14,895 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values 17.07/7.96 [2019-03-29 02:01:14,897 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values 17.07/7.96 [2019-03-29 02:01:14,899 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values 17.07/7.96 [2019-03-29 02:01:14,899 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values 17.07/7.96 [2019-03-29 02:01:14,900 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 17.07/7.96 [2019-03-29 02:01:14,901 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values 17.07/7.96 [2019-03-29 02:01:14,901 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values 17.07/7.96 [2019-03-29 02:01:14,902 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values 17.07/7.96 [2019-03-29 02:01:14,903 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values 17.07/7.96 [2019-03-29 02:01:14,904 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values 17.07/7.96 [2019-03-29 02:01:14,905 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values 17.07/7.96 [2019-03-29 02:01:14,907 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values 17.07/7.96 [2019-03-29 02:01:14,909 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values 17.07/7.96 [2019-03-29 02:01:14,910 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values 17.07/7.96 [2019-03-29 02:01:14,911 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values 17.07/7.96 [2019-03-29 02:01:14,912 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values 17.07/7.96 [2019-03-29 02:01:14,914 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 17.07/7.96 [2019-03-29 02:01:14,914 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... 17.07/7.96 [2019-03-29 02:01:14,915 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values 17.07/7.96 [2019-03-29 02:01:14,915 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values 17.07/7.96 [2019-03-29 02:01:14,916 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values 17.07/7.96 [2019-03-29 02:01:14,917 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... 17.07/7.96 [2019-03-29 02:01:14,917 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values 17.07/7.96 [2019-03-29 02:01:14,918 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values 17.07/7.96 [2019-03-29 02:01:14,918 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values 17.07/7.96 [2019-03-29 02:01:14,919 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values 17.07/7.96 [2019-03-29 02:01:14,920 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... 17.07/7.96 [2019-03-29 02:01:14,920 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values 17.07/7.96 [2019-03-29 02:01:14,921 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 17.07/7.96 [2019-03-29 02:01:14,921 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... 17.07/7.96 [2019-03-29 02:01:14,921 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values 17.07/7.96 [2019-03-29 02:01:14,922 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values 17.07/7.96 [2019-03-29 02:01:14,923 INFO L181 SettingsManager]: Finished resetting all preferences to default values... 17.07/7.96 [2019-03-29 02:01:14,923 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf 17.07/7.96 [2019-03-29 02:01:14,937 INFO L110 SettingsManager]: Loading preferences was successful 17.07/7.96 [2019-03-29 02:01:14,938 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: 17.07/7.96 [2019-03-29 02:01:14,939 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: 17.07/7.96 [2019-03-29 02:01:14,939 INFO L133 SettingsManager]: * Rewrite not-equals=true 17.07/7.96 [2019-03-29 02:01:14,939 INFO L133 SettingsManager]: * Create parallel compositions if possible=false 17.07/7.96 [2019-03-29 02:01:14,939 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE 17.07/7.96 [2019-03-29 02:01:14,939 INFO L133 SettingsManager]: * Use SBE=true 17.07/7.96 [2019-03-29 02:01:14,940 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: 17.07/7.96 [2019-03-29 02:01:14,940 INFO L133 SettingsManager]: * Use old map elimination=false 17.07/7.96 [2019-03-29 02:01:14,940 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false 17.07/7.96 [2019-03-29 02:01:14,940 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION 17.07/7.96 [2019-03-29 02:01:14,940 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true 17.07/7.96 [2019-03-29 02:01:14,940 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES 17.07/7.96 [2019-03-29 02:01:14,941 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true 17.07/7.96 [2019-03-29 02:01:14,941 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 17.07/7.96 [2019-03-29 02:01:14,941 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: 17.07/7.96 [2019-03-29 02:01:14,941 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false 17.07/7.96 [2019-03-29 02:01:14,941 INFO L133 SettingsManager]: * Check division by zero=IGNORE 17.07/7.96 [2019-03-29 02:01:14,941 INFO L133 SettingsManager]: * Check if freed pointer was valid=false 17.07/7.96 [2019-03-29 02:01:14,942 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false 17.07/7.96 [2019-03-29 02:01:14,942 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE 17.07/7.96 [2019-03-29 02:01:14,942 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: 17.07/7.96 [2019-03-29 02:01:14,942 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements 17.07/7.96 [2019-03-29 02:01:14,942 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump 17.07/7.96 [2019-03-29 02:01:14,942 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 17.07/7.96 [2019-03-29 02:01:14,943 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: 17.07/7.96 [2019-03-29 02:01:14,943 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles 17.07/7.96 [2019-03-29 02:01:14,943 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL 17.07/7.96 [2019-03-29 02:01:14,943 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 17.07/7.96 [2019-03-29 02:01:14,969 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp 17.07/7.96 [2019-03-29 02:01:14,981 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized 17.07/7.96 [2019-03-29 02:01:14,985 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. 17.07/7.96 [2019-03-29 02:01:14,986 INFO L271 PluginConnector]: Initializing CDTParser... 17.07/7.96 [2019-03-29 02:01:14,986 INFO L276 PluginConnector]: CDTParser initialized 17.07/7.96 [2019-03-29 02:01:14,987 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c 17.07/7.96 [2019-03-29 02:01:15,062 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/bce595b920e14e4698c25d7a310bb5a2/FLAGca4e6da4a 17.07/7.96 [2019-03-29 02:01:15,397 INFO L307 CDTParser]: Found 1 translation units. 17.07/7.96 [2019-03-29 02:01:15,398 INFO L161 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c 17.07/7.96 [2019-03-29 02:01:15,405 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/bce595b920e14e4698c25d7a310bb5a2/FLAGca4e6da4a 17.07/7.96 [2019-03-29 02:01:15,802 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/bce595b920e14e4698c25d7a310bb5a2 17.07/7.96 [2019-03-29 02:01:15,814 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### 17.07/7.96 [2019-03-29 02:01:15,815 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. 17.07/7.96 [2019-03-29 02:01:15,816 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- 17.07/7.96 [2019-03-29 02:01:15,816 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... 17.07/7.96 [2019-03-29 02:01:15,820 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized 17.07/7.96 [2019-03-29 02:01:15,821 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.03 02:01:15" (1/1) ... 17.07/7.96 [2019-03-29 02:01:15,824 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76473145 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 02:01:15, skipping insertion in model container 17.07/7.96 [2019-03-29 02:01:15,824 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.03 02:01:15" (1/1) ... 17.07/7.96 [2019-03-29 02:01:15,832 INFO L145 MainTranslator]: Starting translation in SV-COMP mode 17.07/7.96 [2019-03-29 02:01:15,849 INFO L176 MainTranslator]: Built tables and reachable declarations 17.07/7.96 [2019-03-29 02:01:16,006 INFO L206 PostProcessor]: Analyzing one entry point: main 17.07/7.96 [2019-03-29 02:01:16,011 INFO L191 MainTranslator]: Completed pre-run 17.07/7.96 [2019-03-29 02:01:16,028 INFO L206 PostProcessor]: Analyzing one entry point: main 17.07/7.96 [2019-03-29 02:01:16,106 INFO L195 MainTranslator]: Completed translation 17.07/7.96 [2019-03-29 02:01:16,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 02:01:16 WrapperNode 17.07/7.96 [2019-03-29 02:01:16,107 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- 17.07/7.96 [2019-03-29 02:01:16,108 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- 17.07/7.96 [2019-03-29 02:01:16,108 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... 17.07/7.96 [2019-03-29 02:01:16,108 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized 17.07/7.96 [2019-03-29 02:01:16,118 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 02:01:16" (1/1) ... 17.07/7.96 [2019-03-29 02:01:16,124 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 02:01:16" (1/1) ... 17.07/7.96 [2019-03-29 02:01:16,145 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- 17.07/7.96 [2019-03-29 02:01:16,146 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- 17.07/7.96 [2019-03-29 02:01:16,146 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... 17.07/7.96 [2019-03-29 02:01:16,146 INFO L276 PluginConnector]: Boogie Preprocessor initialized 17.07/7.96 [2019-03-29 02:01:16,156 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 02:01:16" (1/1) ... 17.07/7.96 [2019-03-29 02:01:16,156 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 02:01:16" (1/1) ... 17.07/7.96 [2019-03-29 02:01:16,156 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 02:01:16" (1/1) ... 17.07/7.96 [2019-03-29 02:01:16,157 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 02:01:16" (1/1) ... 17.07/7.96 [2019-03-29 02:01:16,159 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 02:01:16" (1/1) ... 17.07/7.96 [2019-03-29 02:01:16,164 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 02:01:16" (1/1) ... 17.07/7.96 [2019-03-29 02:01:16,165 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 02:01:16" (1/1) ... 17.07/7.96 [2019-03-29 02:01:16,166 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- 17.07/7.96 [2019-03-29 02:01:16,166 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- 17.07/7.96 [2019-03-29 02:01:16,167 INFO L271 PluginConnector]: Initializing RCFGBuilder... 17.07/7.96 [2019-03-29 02:01:16,167 INFO L276 PluginConnector]: RCFGBuilder initialized 17.07/7.96 [2019-03-29 02:01:16,168 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 02:01:16" (1/1) ... 17.07/7.96 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 17.07/7.96 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) 17.07/7.96 Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 17.07/7.96 [2019-03-29 02:01:16,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start 17.07/7.96 [2019-03-29 02:01:16,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start 17.07/7.96 [2019-03-29 02:01:16,378 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) 17.07/7.96 [2019-03-29 02:01:16,378 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. 17.07/7.96 [2019-03-29 02:01:16,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.03 02:01:16 BoogieIcfgContainer 17.07/7.96 [2019-03-29 02:01:16,380 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- 17.07/7.96 [2019-03-29 02:01:16,380 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- 17.07/7.96 [2019-03-29 02:01:16,381 INFO L271 PluginConnector]: Initializing BlockEncodingV2... 17.07/7.96 [2019-03-29 02:01:16,383 INFO L276 PluginConnector]: BlockEncodingV2 initialized 17.07/7.96 [2019-03-29 02:01:16,384 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.03 02:01:16" (1/1) ... 17.07/7.96 [2019-03-29 02:01:16,400 INFO L313 BlockEncoder]: Initial Icfg 8 locations, 11 edges 17.07/7.96 [2019-03-29 02:01:16,402 INFO L258 BlockEncoder]: Using Remove infeasible edges 17.07/7.96 [2019-03-29 02:01:16,403 INFO L263 BlockEncoder]: Using Maximize final states 17.07/7.96 [2019-03-29 02:01:16,404 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false 17.07/7.96 [2019-03-29 02:01:16,404 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE 17.07/7.96 [2019-03-29 02:01:16,406 INFO L296 BlockEncoder]: Using Remove sink states 17.07/7.96 [2019-03-29 02:01:16,407 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true 17.07/7.96 [2019-03-29 02:01:16,407 INFO L179 BlockEncoder]: Using Rewrite not-equals 17.07/7.96 [2019-03-29 02:01:16,423 INFO L185 BlockEncoder]: Using Use SBE 17.07/7.96 [2019-03-29 02:01:16,438 INFO L200 BlockEncoder]: SBE split 1 edges 17.07/7.96 [2019-03-29 02:01:16,443 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility 17.07/7.96 [2019-03-29 02:01:16,445 INFO L71 MaximizeFinalStates]: 0 new accepting states 17.07/7.96 [2019-03-29 02:01:16,456 INFO L100 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding 17.07/7.96 [2019-03-29 02:01:16,458 INFO L70 RemoveSinkStates]: Removed 4 edges and 2 locations by removing sink states 17.07/7.96 [2019-03-29 02:01:16,459 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility 17.07/7.96 [2019-03-29 02:01:16,459 INFO L71 MaximizeFinalStates]: 0 new accepting states 17.07/7.96 [2019-03-29 02:01:16,465 INFO L100 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding 17.07/7.96 [2019-03-29 02:01:16,466 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states 17.07/7.96 [2019-03-29 02:01:16,466 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility 17.07/7.96 [2019-03-29 02:01:16,466 INFO L71 MaximizeFinalStates]: 0 new accepting states 17.07/7.96 [2019-03-29 02:01:16,467 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding 17.07/7.96 [2019-03-29 02:01:16,467 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states 17.07/7.96 [2019-03-29 02:01:16,467 INFO L313 BlockEncoder]: Encoded RCFG 3 locations, 4 edges 17.07/7.96 [2019-03-29 02:01:16,468 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 29.03 02:01:16 BasicIcfg 17.07/7.96 [2019-03-29 02:01:16,468 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- 17.07/7.96 [2019-03-29 02:01:16,469 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- 17.07/7.96 [2019-03-29 02:01:16,469 INFO L271 PluginConnector]: Initializing TraceAbstraction... 17.07/7.96 [2019-03-29 02:01:16,472 INFO L276 PluginConnector]: TraceAbstraction initialized 17.07/7.96 [2019-03-29 02:01:16,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.03 02:01:15" (1/4) ... 17.07/7.96 [2019-03-29 02:01:16,473 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c9129c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.03 02:01:16, skipping insertion in model container 17.07/7.96 [2019-03-29 02:01:16,474 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 02:01:16" (2/4) ... 17.07/7.96 [2019-03-29 02:01:16,474 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c9129c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.03 02:01:16, skipping insertion in model container 17.07/7.96 [2019-03-29 02:01:16,474 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.03 02:01:16" (3/4) ... 17.07/7.96 [2019-03-29 02:01:16,475 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c9129c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.03 02:01:16, skipping insertion in model container 17.07/7.96 [2019-03-29 02:01:16,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 29.03 02:01:16" (4/4) ... 17.07/7.96 [2019-03-29 02:01:16,476 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 17.07/7.96 [2019-03-29 02:01:16,486 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION 17.07/7.96 [2019-03-29 02:01:16,494 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. 17.07/7.96 [2019-03-29 02:01:16,511 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. 17.07/7.96 [2019-03-29 02:01:16,540 INFO L133 ementStrategyFactory]: Using default assertion order modulation 17.07/7.96 [2019-03-29 02:01:16,541 INFO L382 AbstractCegarLoop]: Interprodecural is true 17.07/7.96 [2019-03-29 02:01:16,541 INFO L383 AbstractCegarLoop]: Hoare is true 17.07/7.96 [2019-03-29 02:01:16,541 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates 17.07/7.96 [2019-03-29 02:01:16,541 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE 17.07/7.96 [2019-03-29 02:01:16,542 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION 17.07/7.96 [2019-03-29 02:01:16,542 INFO L387 AbstractCegarLoop]: Difference is false 17.07/7.96 [2019-03-29 02:01:16,542 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA 17.07/7.96 [2019-03-29 02:01:16,542 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== 17.07/7.96 [2019-03-29 02:01:16,556 INFO L276 IsEmpty]: Start isEmpty. Operand 3 states. 17.07/7.96 [2019-03-29 02:01:16,562 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. 17.07/7.96 [2019-03-29 02:01:16,565 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. 17.07/7.96 [2019-03-29 02:01:16,616 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. 17.07/7.96 [2019-03-29 02:01:16,617 INFO L448 ceAbstractionStarter]: For program point L21(lines 21 26) no Hoare annotation was computed. 17.07/7.96 [2019-03-29 02:01:16,617 INFO L451 ceAbstractionStarter]: At program point L21-2(lines 20 27) the Hoare annotation is: true 17.07/7.96 [2019-03-29 02:01:16,625 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.03 02:01:16 BasicIcfg 17.07/7.96 [2019-03-29 02:01:16,625 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- 17.07/7.96 [2019-03-29 02:01:16,626 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- 17.07/7.96 [2019-03-29 02:01:16,626 INFO L271 PluginConnector]: Initializing BuchiAutomizer... 17.07/7.96 [2019-03-29 02:01:16,629 INFO L276 PluginConnector]: BuchiAutomizer initialized 17.07/7.96 [2019-03-29 02:01:16,630 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 17.07/7.96 [2019-03-29 02:01:16,630 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.03 02:01:15" (1/5) ... 17.07/7.96 [2019-03-29 02:01:16,631 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3b3e6614 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.03 02:01:16, skipping insertion in model container 17.07/7.96 [2019-03-29 02:01:16,631 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 17.07/7.96 [2019-03-29 02:01:16,631 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 02:01:16" (2/5) ... 17.07/7.96 [2019-03-29 02:01:16,632 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3b3e6614 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.03 02:01:16, skipping insertion in model container 17.07/7.96 [2019-03-29 02:01:16,632 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 17.07/7.96 [2019-03-29 02:01:16,632 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.03 02:01:16" (3/5) ... 17.07/7.96 [2019-03-29 02:01:16,632 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3b3e6614 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.03 02:01:16, skipping insertion in model container 17.07/7.96 [2019-03-29 02:01:16,632 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 17.07/7.96 [2019-03-29 02:01:16,633 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 29.03 02:01:16" (4/5) ... 17.07/7.96 [2019-03-29 02:01:16,633 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3b3e6614 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.03 02:01:16, skipping insertion in model container 17.07/7.96 [2019-03-29 02:01:16,633 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 17.07/7.96 [2019-03-29 02:01:16,633 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.03 02:01:16" (5/5) ... 17.07/7.97 [2019-03-29 02:01:16,635 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 17.07/7.97 [2019-03-29 02:01:16,661 INFO L133 ementStrategyFactory]: Using default assertion order modulation 17.07/7.97 [2019-03-29 02:01:16,662 INFO L374 BuchiCegarLoop]: Interprodecural is true 17.07/7.97 [2019-03-29 02:01:16,662 INFO L375 BuchiCegarLoop]: Hoare is true 17.07/7.97 [2019-03-29 02:01:16,662 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates 17.07/7.97 [2019-03-29 02:01:16,662 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE 17.07/7.97 [2019-03-29 02:01:16,662 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION 17.07/7.97 [2019-03-29 02:01:16,663 INFO L379 BuchiCegarLoop]: Difference is false 17.07/7.97 [2019-03-29 02:01:16,663 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA 17.07/7.97 [2019-03-29 02:01:16,663 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== 17.07/7.97 [2019-03-29 02:01:16,666 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. 17.07/7.97 [2019-03-29 02:01:16,683 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 17.07/7.97 [2019-03-29 02:01:16,683 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 17.07/7.97 [2019-03-29 02:01:16,683 INFO L119 BuchiIsEmpty]: Starting construction of run 17.07/7.97 [2019-03-29 02:01:16,689 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] 17.07/7.97 [2019-03-29 02:01:16,689 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] 17.07/7.97 [2019-03-29 02:01:16,689 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ 17.07/7.97 [2019-03-29 02:01:16,690 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. 17.07/7.97 [2019-03-29 02:01:16,690 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 17.07/7.97 [2019-03-29 02:01:16,690 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 17.07/7.97 [2019-03-29 02:01:16,691 INFO L119 BuchiIsEmpty]: Starting construction of run 17.07/7.97 [2019-03-29 02:01:16,691 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] 17.07/7.97 [2019-03-29 02:01:16,691 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] 17.07/7.97 [2019-03-29 02:01:16,696 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [48] ULTIMATE.startENTRY-->L21-2: Formula: (and (<= 0 v_ULTIMATE.start_main_~n~0_8) (< 0 v_ULTIMATE.start_main_~m~0_10) (= v_ULTIMATE.start_main_~n~0_8 v_ULTIMATE.start_main_~v1~0_9) (= 0 v_ULTIMATE.start_main_~v2~0_9)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_6|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_6|, ULTIMATE.start_main_~v2~0=v_ULTIMATE.start_main_~v2~0_9, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_10, ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_8, ULTIMATE.start_main_~v1~0=v_ULTIMATE.start_main_~v1~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~v2~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~m~0, ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~v1~0] 5#L21-2true 17.07/7.97 [2019-03-29 02:01:16,697 INFO L796 eck$LassoCheckResult]: Loop: 5#L21-2true [39] L21-2-->L21: Formula: (< 0 v_ULTIMATE.start_main_~v1~0_8) InVars {ULTIMATE.start_main_~v1~0=v_ULTIMATE.start_main_~v1~0_8} OutVars{ULTIMATE.start_main_~v1~0=v_ULTIMATE.start_main_~v1~0_8} AuxVars[] AssignedVars[] 3#L21true [43] L21-->L21-2: Formula: (and (= v_ULTIMATE.start_main_~v2~0_6 0) (>= v_ULTIMATE.start_main_~v2~0_7 v_ULTIMATE.start_main_~m~0_7)) InVars {ULTIMATE.start_main_~v2~0=v_ULTIMATE.start_main_~v2~0_7, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_7} OutVars{ULTIMATE.start_main_~v2~0=v_ULTIMATE.start_main_~v2~0_6, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~v2~0] 5#L21-2true 17.07/7.97 [2019-03-29 02:01:16,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 17.07/7.97 [2019-03-29 02:01:16,703 INFO L82 PathProgramCache]: Analyzing trace with hash 79, now seen corresponding path program 1 times 17.07/7.97 [2019-03-29 02:01:16,705 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 17.07/7.97 [2019-03-29 02:01:16,706 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 17.07/7.97 [2019-03-29 02:01:16,737 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 17.07/7.97 [2019-03-29 02:01:16,737 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 17.07/7.97 [2019-03-29 02:01:16,738 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 17.07/7.97 [2019-03-29 02:01:16,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 17.07/7.97 [2019-03-29 02:01:16,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 17.07/7.97 [2019-03-29 02:01:16,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 17.07/7.97 [2019-03-29 02:01:16,780 INFO L82 PathProgramCache]: Analyzing trace with hash 2213, now seen corresponding path program 1 times 17.07/7.97 [2019-03-29 02:01:16,780 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 17.07/7.97 [2019-03-29 02:01:16,781 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 17.07/7.97 [2019-03-29 02:01:16,782 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 17.07/7.97 [2019-03-29 02:01:16,782 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 17.07/7.97 [2019-03-29 02:01:16,783 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 17.07/7.97 [2019-03-29 02:01:16,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 17.07/7.97 [2019-03-29 02:01:16,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 17.07/7.97 [2019-03-29 02:01:16,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 17.07/7.97 [2019-03-29 02:01:16,792 INFO L82 PathProgramCache]: Analyzing trace with hash 77171, now seen corresponding path program 1 times 17.07/7.97 [2019-03-29 02:01:16,793 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 17.07/7.97 [2019-03-29 02:01:16,793 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 17.07/7.97 [2019-03-29 02:01:16,794 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 17.07/7.97 [2019-03-29 02:01:16,794 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 17.07/7.97 [2019-03-29 02:01:16,795 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 17.07/7.97 [2019-03-29 02:01:16,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 17.07/7.97 [2019-03-29 02:01:16,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. 17.07/7.97 [2019-03-29 02:01:16,845 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. 17.07/7.97 [2019-03-29 02:01:16,845 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 17.07/7.97 [2019-03-29 02:01:16,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. 17.07/7.97 [2019-03-29 02:01:16,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 17.07/7.97 [2019-03-29 02:01:16,897 INFO L87 Difference]: Start difference. First operand 3 states. Second operand 3 states. 17.07/7.97 [2019-03-29 02:01:16,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. 17.07/7.97 [2019-03-29 02:01:16,915 INFO L93 Difference]: Finished difference Result 5 states and 6 transitions. 17.07/7.97 [2019-03-29 02:01:16,915 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 17.07/7.97 [2019-03-29 02:01:16,919 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 5 states and 6 transitions. 17.07/7.97 [2019-03-29 02:01:16,919 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 17.07/7.97 [2019-03-29 02:01:16,923 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 5 states to 5 states and 6 transitions. 17.07/7.97 [2019-03-29 02:01:16,924 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 17.07/7.97 [2019-03-29 02:01:16,924 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 17.07/7.97 [2019-03-29 02:01:16,925 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 6 transitions. 17.07/7.97 [2019-03-29 02:01:16,925 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. 17.07/7.97 [2019-03-29 02:01:16,926 INFO L706 BuchiCegarLoop]: Abstraction has 5 states and 6 transitions. 17.07/7.97 [2019-03-29 02:01:16,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states and 6 transitions. 17.07/7.97 [2019-03-29 02:01:16,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. 17.07/7.97 [2019-03-29 02:01:16,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. 17.07/7.97 [2019-03-29 02:01:16,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 6 transitions. 17.07/7.97 [2019-03-29 02:01:16,955 INFO L729 BuchiCegarLoop]: Abstraction has 5 states and 6 transitions. 17.07/7.97 [2019-03-29 02:01:16,955 INFO L609 BuchiCegarLoop]: Abstraction has 5 states and 6 transitions. 17.07/7.97 [2019-03-29 02:01:16,955 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ 17.07/7.97 [2019-03-29 02:01:16,955 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 6 transitions. 17.07/7.97 [2019-03-29 02:01:16,956 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 17.07/7.97 [2019-03-29 02:01:16,956 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 17.07/7.97 [2019-03-29 02:01:16,956 INFO L119 BuchiIsEmpty]: Starting construction of run 17.07/7.97 [2019-03-29 02:01:16,956 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] 17.07/7.97 [2019-03-29 02:01:16,957 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] 17.07/7.97 [2019-03-29 02:01:16,957 INFO L794 eck$LassoCheckResult]: Stem: 21#ULTIMATE.startENTRY [48] ULTIMATE.startENTRY-->L21-2: Formula: (and (<= 0 v_ULTIMATE.start_main_~n~0_8) (< 0 v_ULTIMATE.start_main_~m~0_10) (= v_ULTIMATE.start_main_~n~0_8 v_ULTIMATE.start_main_~v1~0_9) (= 0 v_ULTIMATE.start_main_~v2~0_9)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_6|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_6|, ULTIMATE.start_main_~v2~0=v_ULTIMATE.start_main_~v2~0_9, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_10, ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_8, ULTIMATE.start_main_~v1~0=v_ULTIMATE.start_main_~v1~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~v2~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~m~0, ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~v1~0] 22#L21-2 [39] L21-2-->L21: Formula: (< 0 v_ULTIMATE.start_main_~v1~0_8) InVars {ULTIMATE.start_main_~v1~0=v_ULTIMATE.start_main_~v1~0_8} OutVars{ULTIMATE.start_main_~v1~0=v_ULTIMATE.start_main_~v1~0_8} AuxVars[] AssignedVars[] 19#L21 [30] L21-->L21-2: Formula: (and (< v_ULTIMATE.start_main_~v2~0_2 v_ULTIMATE.start_main_~m~0_1) (= v_ULTIMATE.start_main_~v2~0_1 (+ v_ULTIMATE.start_main_~v2~0_2 1)) (= v_ULTIMATE.start_main_~v1~0_1 (+ v_ULTIMATE.start_main_~v1~0_2 (- 1)))) InVars {ULTIMATE.start_main_~v2~0=v_ULTIMATE.start_main_~v2~0_2, ULTIMATE.start_main_~v1~0=v_ULTIMATE.start_main_~v1~0_2, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_1} OutVars{ULTIMATE.start_main_~v2~0=v_ULTIMATE.start_main_~v2~0_1, ULTIMATE.start_main_~v1~0=v_ULTIMATE.start_main_~v1~0_1, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_1} AuxVars[] AssignedVars[ULTIMATE.start_main_~v2~0, ULTIMATE.start_main_~v1~0] 20#L21-2 17.07/7.97 [2019-03-29 02:01:16,958 INFO L796 eck$LassoCheckResult]: Loop: 20#L21-2 [39] L21-2-->L21: Formula: (< 0 v_ULTIMATE.start_main_~v1~0_8) InVars {ULTIMATE.start_main_~v1~0=v_ULTIMATE.start_main_~v1~0_8} OutVars{ULTIMATE.start_main_~v1~0=v_ULTIMATE.start_main_~v1~0_8} AuxVars[] AssignedVars[] 23#L21 [43] L21-->L21-2: Formula: (and (= v_ULTIMATE.start_main_~v2~0_6 0) (>= v_ULTIMATE.start_main_~v2~0_7 v_ULTIMATE.start_main_~m~0_7)) InVars {ULTIMATE.start_main_~v2~0=v_ULTIMATE.start_main_~v2~0_7, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_7} OutVars{ULTIMATE.start_main_~v2~0=v_ULTIMATE.start_main_~v2~0_6, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~v2~0] 20#L21-2 17.07/7.97 [2019-03-29 02:01:16,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 17.07/7.97 [2019-03-29 02:01:16,958 INFO L82 PathProgramCache]: Analyzing trace with hash 77158, now seen corresponding path program 1 times 17.07/7.97 [2019-03-29 02:01:16,958 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 17.07/7.97 [2019-03-29 02:01:16,958 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 17.07/7.97 [2019-03-29 02:01:16,960 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 17.07/7.97 [2019-03-29 02:01:16,960 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 17.07/7.97 [2019-03-29 02:01:16,960 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 17.07/7.97 [2019-03-29 02:01:16,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 17.07/7.97 [2019-03-29 02:01:16,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 17.07/7.97 [2019-03-29 02:01:16,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 17.07/7.97 [2019-03-29 02:01:16,972 INFO L82 PathProgramCache]: Analyzing trace with hash 2213, now seen corresponding path program 2 times 17.07/7.97 [2019-03-29 02:01:16,973 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 17.07/7.97 [2019-03-29 02:01:16,973 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 17.07/7.97 [2019-03-29 02:01:16,974 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 17.07/7.97 [2019-03-29 02:01:16,974 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 17.07/7.97 [2019-03-29 02:01:16,974 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 17.07/7.97 [2019-03-29 02:01:16,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 17.07/7.97 [2019-03-29 02:01:16,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 17.07/7.97 [2019-03-29 02:01:16,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 17.07/7.97 [2019-03-29 02:01:16,979 INFO L82 PathProgramCache]: Analyzing trace with hash 74150090, now seen corresponding path program 1 times 17.07/7.97 [2019-03-29 02:01:16,979 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 17.07/7.97 [2019-03-29 02:01:16,979 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 17.07/7.97 [2019-03-29 02:01:16,981 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 17.07/7.97 [2019-03-29 02:01:16,981 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY 17.07/7.97 [2019-03-29 02:01:16,981 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 17.07/7.97 [2019-03-29 02:01:16,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 17.07/7.97 [2019-03-29 02:01:16,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 17.07/7.97 [2019-03-29 02:01:17,082 INFO L216 LassoAnalysis]: Preferences: 17.07/7.97 [2019-03-29 02:01:17,084 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 17.07/7.97 [2019-03-29 02:01:17,084 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 17.07/7.97 [2019-03-29 02:01:17,084 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 17.07/7.97 [2019-03-29 02:01:17,084 INFO L127 ssoRankerPreferences]: Use exernal solver: true 17.07/7.97 [2019-03-29 02:01:17,084 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 17.07/7.97 [2019-03-29 02:01:17,085 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 17.07/7.97 [2019-03-29 02:01:17,085 INFO L130 ssoRankerPreferences]: Path of dumped script: 17.07/7.97 [2019-03-29 02:01:17,085 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Lasso 17.07/7.97 [2019-03-29 02:01:17,085 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 17.07/7.97 [2019-03-29 02:01:17,085 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 17.07/7.97 [2019-03-29 02:01:17,105 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 17.07/7.97 [2019-03-29 02:01:17,113 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 17.07/7.97 [2019-03-29 02:01:17,120 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 17.07/7.97 [2019-03-29 02:01:17,122 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 17.07/7.97 [2019-03-29 02:01:17,125 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 17.07/7.97 [2019-03-29 02:01:17,128 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 17.07/7.97 [2019-03-29 02:01:17,141 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 17.07/7.97 [2019-03-29 02:01:17,265 INFO L300 LassoAnalysis]: Preprocessing complete. 17.07/7.97 [2019-03-29 02:01:17,266 INFO L412 LassoAnalysis]: Checking for nontermination... 17.07/7.97 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 17.07/7.97 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 17.07/7.97 Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 17.07/7.97 [2019-03-29 02:01:17,275 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 17.07/7.97 [2019-03-29 02:01:17,275 INFO L163 nArgumentSynthesizer]: Using integer mode. 17.07/7.97 [2019-03-29 02:01:17,283 INFO L445 LassoAnalysis]: Proved nontermination for one component. 17.07/7.97 [2019-03-29 02:01:17,283 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 17.07/7.97 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 17.07/7.97 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 17.07/7.97 Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 17.07/7.97 [2019-03-29 02:01:17,313 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 17.07/7.97 [2019-03-29 02:01:17,313 INFO L163 nArgumentSynthesizer]: Using integer mode. 17.07/7.97 [2019-03-29 02:01:17,341 INFO L445 LassoAnalysis]: Proved nontermination for one component. 17.07/7.97 [2019-03-29 02:01:17,341 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 17.07/7.97 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 17.07/7.97 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 17.07/7.97 Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 17.07/7.97 [2019-03-29 02:01:17,346 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 17.07/7.97 [2019-03-29 02:01:17,347 INFO L163 nArgumentSynthesizer]: Using integer mode. 17.07/7.97 [2019-03-29 02:01:17,350 INFO L445 LassoAnalysis]: Proved nontermination for one component. 17.07/7.97 [2019-03-29 02:01:17,350 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 17.07/7.97 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 17.07/7.97 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 17.07/7.97 Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 17.07/7.97 [2019-03-29 02:01:17,377 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 17.07/7.97 [2019-03-29 02:01:17,377 INFO L163 nArgumentSynthesizer]: Using integer mode. 17.07/7.97 [2019-03-29 02:01:17,381 INFO L445 LassoAnalysis]: Proved nontermination for one component. 17.07/7.97 [2019-03-29 02:01:17,381 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1=0} Honda state: {ULTIMATE.start_main_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 17.07/7.97 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 17.07/7.97 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 17.07/7.97 Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 17.07/7.97 [2019-03-29 02:01:17,410 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 17.07/7.97 [2019-03-29 02:01:17,411 INFO L163 nArgumentSynthesizer]: Using integer mode. 17.07/7.97 [2019-03-29 02:01:17,438 INFO L445 LassoAnalysis]: Proved nontermination for one component. 17.07/7.97 [2019-03-29 02:01:17,438 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] 17.07/7.97 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 17.07/7.97 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 17.07/7.97 Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 17.07/7.97 [2019-03-29 02:01:17,443 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 17.07/7.97 [2019-03-29 02:01:17,443 INFO L163 nArgumentSynthesizer]: Using integer mode. 17.07/7.97 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 17.07/7.97 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 17.07/7.97 Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 17.07/7.97 [2019-03-29 02:01:17,477 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true 17.07/7.97 [2019-03-29 02:01:17,477 INFO L163 nArgumentSynthesizer]: Using integer mode. 17.07/7.97 [2019-03-29 02:01:17,595 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. 17.07/7.97 [2019-03-29 02:01:17,597 INFO L216 LassoAnalysis]: Preferences: 17.07/7.97 [2019-03-29 02:01:17,598 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 17.07/7.97 [2019-03-29 02:01:17,598 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 17.07/7.97 [2019-03-29 02:01:17,598 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 17.07/7.97 [2019-03-29 02:01:17,598 INFO L127 ssoRankerPreferences]: Use exernal solver: false 17.07/7.97 [2019-03-29 02:01:17,598 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 17.07/7.97 [2019-03-29 02:01:17,598 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 17.07/7.97 [2019-03-29 02:01:17,598 INFO L130 ssoRankerPreferences]: Path of dumped script: 17.07/7.97 [2019-03-29 02:01:17,599 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Lasso 17.07/7.97 [2019-03-29 02:01:17,599 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 17.07/7.97 [2019-03-29 02:01:17,599 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 17.07/7.97 [2019-03-29 02:01:17,601 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 17.07/7.97 [2019-03-29 02:01:17,604 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 17.07/7.97 [2019-03-29 02:01:17,607 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 17.07/7.97 [2019-03-29 02:01:17,610 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 17.07/7.97 [2019-03-29 02:01:17,612 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 17.07/7.97 [2019-03-29 02:01:17,620 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 17.07/7.97 [2019-03-29 02:01:17,623 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 17.07/7.97 [2019-03-29 02:01:17,713 INFO L300 LassoAnalysis]: Preprocessing complete. 17.07/7.97 [2019-03-29 02:01:17,719 INFO L497 LassoAnalysis]: Using template 'affine'. 17.07/7.97 [2019-03-29 02:01:17,721 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 17.07/7.97 Termination analysis: LINEAR_WITH_GUESSES 17.07/7.97 Number of strict supporting invariants: 0 17.07/7.97 Number of non-strict supporting invariants: 1 17.07/7.97 Consider only non-deceasing supporting invariants: true 17.07/7.97 Simplify termination arguments: true 17.07/7.97 Simplify supporting invariants: trueOverapproximate stem: false 17.07/7.97 [2019-03-29 02:01:17,723 INFO L339 nArgumentSynthesizer]: Template has degree 0. 17.07/7.97 [2019-03-29 02:01:17,723 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 17.07/7.97 [2019-03-29 02:01:17,724 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 17.07/7.97 [2019-03-29 02:01:17,724 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 17.07/7.97 [2019-03-29 02:01:17,724 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 17.07/7.97 [2019-03-29 02:01:17,726 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 17.07/7.97 [2019-03-29 02:01:17,727 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 17.07/7.97 [2019-03-29 02:01:17,729 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. 17.07/7.97 [2019-03-29 02:01:17,730 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 17.07/7.97 Termination analysis: LINEAR_WITH_GUESSES 17.07/7.97 Number of strict supporting invariants: 0 17.07/7.97 Number of non-strict supporting invariants: 1 17.07/7.97 Consider only non-deceasing supporting invariants: true 17.07/7.97 Simplify termination arguments: true 17.07/7.97 Simplify supporting invariants: trueOverapproximate stem: false 17.07/7.97 [2019-03-29 02:01:17,730 INFO L339 nArgumentSynthesizer]: Template has degree 0. 17.07/7.97 [2019-03-29 02:01:17,731 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 17.07/7.97 [2019-03-29 02:01:17,731 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 17.07/7.97 [2019-03-29 02:01:17,731 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 17.07/7.97 [2019-03-29 02:01:17,734 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. 17.07/7.97 [2019-03-29 02:01:17,734 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. 17.07/7.97 [2019-03-29 02:01:17,739 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. 17.07/7.97 [2019-03-29 02:01:17,739 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 17.07/7.97 Termination analysis: LINEAR_WITH_GUESSES 17.07/7.97 Number of strict supporting invariants: 0 17.07/7.97 Number of non-strict supporting invariants: 1 17.07/7.97 Consider only non-deceasing supporting invariants: true 17.07/7.97 Simplify termination arguments: true 17.07/7.97 Simplify supporting invariants: trueOverapproximate stem: false 17.07/7.97 [2019-03-29 02:01:17,740 INFO L339 nArgumentSynthesizer]: Template has degree 0. 17.07/7.97 [2019-03-29 02:01:17,740 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 17.07/7.97 [2019-03-29 02:01:17,740 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 17.07/7.97 [2019-03-29 02:01:17,741 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 17.07/7.97 [2019-03-29 02:01:17,741 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 17.07/7.97 [2019-03-29 02:01:17,741 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 17.07/7.97 [2019-03-29 02:01:17,741 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 17.07/7.97 [2019-03-29 02:01:17,742 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. 17.07/7.97 [2019-03-29 02:01:17,743 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 17.07/7.97 Termination analysis: LINEAR_WITH_GUESSES 17.07/7.97 Number of strict supporting invariants: 0 17.07/7.97 Number of non-strict supporting invariants: 1 17.07/7.97 Consider only non-deceasing supporting invariants: true 17.07/7.97 Simplify termination arguments: true 17.07/7.97 Simplify supporting invariants: trueOverapproximate stem: false 17.07/7.97 [2019-03-29 02:01:17,743 INFO L339 nArgumentSynthesizer]: Template has degree 0. 17.07/7.97 [2019-03-29 02:01:17,743 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 17.07/7.97 [2019-03-29 02:01:17,743 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 17.07/7.97 [2019-03-29 02:01:17,744 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 17.07/7.97 [2019-03-29 02:01:17,744 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 17.07/7.97 [2019-03-29 02:01:17,744 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 17.07/7.97 [2019-03-29 02:01:17,745 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 17.07/7.97 [2019-03-29 02:01:17,745 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. 17.07/7.97 [2019-03-29 02:01:17,746 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 17.07/7.97 Termination analysis: LINEAR_WITH_GUESSES 17.07/7.97 Number of strict supporting invariants: 0 17.07/7.97 Number of non-strict supporting invariants: 1 17.07/7.97 Consider only non-deceasing supporting invariants: true 17.07/7.97 Simplify termination arguments: true 17.07/7.97 Simplify supporting invariants: trueOverapproximate stem: false 17.07/7.97 [2019-03-29 02:01:17,746 INFO L339 nArgumentSynthesizer]: Template has degree 0. 17.07/7.97 [2019-03-29 02:01:17,746 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 17.07/7.97 [2019-03-29 02:01:17,747 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 17.07/7.97 [2019-03-29 02:01:17,747 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 17.07/7.97 [2019-03-29 02:01:17,750 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. 17.07/7.97 [2019-03-29 02:01:17,750 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. 17.07/7.97 [2019-03-29 02:01:17,765 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. 17.07/7.97 [2019-03-29 02:01:17,765 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 17.07/7.97 Termination analysis: LINEAR_WITH_GUESSES 17.07/7.97 Number of strict supporting invariants: 0 17.07/7.97 Number of non-strict supporting invariants: 1 17.07/7.97 Consider only non-deceasing supporting invariants: true 17.07/7.97 Simplify termination arguments: true 17.07/7.97 Simplify supporting invariants: trueOverapproximate stem: false 17.07/7.97 [2019-03-29 02:01:17,766 INFO L339 nArgumentSynthesizer]: Template has degree 0. 17.07/7.97 [2019-03-29 02:01:17,766 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 17.07/7.97 [2019-03-29 02:01:17,766 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 17.07/7.97 [2019-03-29 02:01:17,766 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 17.07/7.97 [2019-03-29 02:01:17,769 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. 17.07/7.97 [2019-03-29 02:01:17,769 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. 17.07/7.97 [2019-03-29 02:01:17,774 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. 17.07/7.97 [2019-03-29 02:01:17,775 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 17.07/7.97 Termination analysis: LINEAR_WITH_GUESSES 17.07/7.97 Number of strict supporting invariants: 0 17.07/7.97 Number of non-strict supporting invariants: 1 17.07/7.97 Consider only non-deceasing supporting invariants: true 17.07/7.97 Simplify termination arguments: true 17.07/7.97 Simplify supporting invariants: trueOverapproximate stem: false 17.07/7.97 [2019-03-29 02:01:17,776 INFO L339 nArgumentSynthesizer]: Template has degree 0. 17.07/7.97 [2019-03-29 02:01:17,776 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 17.07/7.97 [2019-03-29 02:01:17,776 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 17.07/7.97 [2019-03-29 02:01:17,777 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 17.07/7.97 [2019-03-29 02:01:17,779 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. 17.07/7.97 [2019-03-29 02:01:17,779 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. 17.07/7.97 [2019-03-29 02:01:17,797 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. 17.07/7.97 [2019-03-29 02:01:17,811 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. 17.07/7.97 [2019-03-29 02:01:17,811 INFO L444 ModelExtractionUtils]: 4 out of 10 variables were initially zero. Simplification set additionally 0 variables to zero. 17.07/7.97 [2019-03-29 02:01:17,814 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... 17.07/7.97 [2019-03-29 02:01:17,816 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. 17.07/7.97 [2019-03-29 02:01:17,816 INFO L518 LassoAnalysis]: Proved termination. 17.07/7.97 [2019-03-29 02:01:17,817 INFO L520 LassoAnalysis]: Termination argument consisting of: 17.07/7.97 Ranking function f(ULTIMATE.start_main_~v2~0, ULTIMATE.start_main_~m~0) = 2*ULTIMATE.start_main_~v2~0 - 2*ULTIMATE.start_main_~m~0 + 1 17.07/7.97 Supporting invariants [1*ULTIMATE.start_main_~m~0 - 1 >= 0] 17.07/7.97 [2019-03-29 02:01:17,821 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed 17.07/7.97 [2019-03-29 02:01:17,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 17.07/7.97 [2019-03-29 02:01:17,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 17.07/7.97 [2019-03-29 02:01:17,884 INFO L256 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 3 conjunts are in the unsatisfiable core 17.07/7.97 [2019-03-29 02:01:17,885 INFO L279 TraceCheckSpWp]: Computing forward predicates... 17.07/7.97 [2019-03-29 02:01:17,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 17.07/7.97 [2019-03-29 02:01:17,911 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core 17.07/7.97 [2019-03-29 02:01:17,911 INFO L279 TraceCheckSpWp]: Computing forward predicates... 17.07/7.97 [2019-03-29 02:01:17,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. 17.07/7.97 [2019-03-29 02:01:17,930 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization 17.07/7.97 [2019-03-29 02:01:17,934 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates 17.07/7.97 [2019-03-29 02:01:17,935 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 5 states and 6 transitions. cyclomatic complexity: 2 Second operand 4 states. 17.07/7.97 [2019-03-29 02:01:17,996 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 5 states and 6 transitions. cyclomatic complexity: 2. Second operand 4 states. Result 14 states and 20 transitions. Complement of second has 11 states. 17.07/7.97 [2019-03-29 02:01:17,997 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states 17.07/7.97 [2019-03-29 02:01:17,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. 17.07/7.97 [2019-03-29 02:01:17,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 11 transitions. 17.07/7.97 [2019-03-29 02:01:18,001 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 3 letters. Loop has 2 letters. 17.07/7.97 [2019-03-29 02:01:18,003 INFO L116 BuchiAccepts]: Finished buchiAccepts. 17.07/7.97 [2019-03-29 02:01:18,003 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 5 letters. Loop has 2 letters. 17.07/7.97 [2019-03-29 02:01:18,003 INFO L116 BuchiAccepts]: Finished buchiAccepts. 17.07/7.97 [2019-03-29 02:01:18,003 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 3 letters. Loop has 4 letters. 17.07/7.97 [2019-03-29 02:01:18,004 INFO L116 BuchiAccepts]: Finished buchiAccepts. 17.07/7.97 [2019-03-29 02:01:18,009 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 20 transitions. 17.07/7.97 [2019-03-29 02:01:18,010 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 17.07/7.97 [2019-03-29 02:01:18,011 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 11 states and 15 transitions. 17.07/7.97 [2019-03-29 02:01:18,011 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 17.07/7.97 [2019-03-29 02:01:18,011 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 17.07/7.97 [2019-03-29 02:01:18,011 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 15 transitions. 17.07/7.97 [2019-03-29 02:01:18,012 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. 17.07/7.97 [2019-03-29 02:01:18,012 INFO L706 BuchiCegarLoop]: Abstraction has 11 states and 15 transitions. 17.07/7.97 [2019-03-29 02:01:18,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 15 transitions. 17.07/7.97 [2019-03-29 02:01:18,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 6. 17.07/7.97 [2019-03-29 02:01:18,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. 17.07/7.97 [2019-03-29 02:01:18,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 8 transitions. 17.07/7.97 [2019-03-29 02:01:18,013 INFO L729 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. 17.07/7.97 [2019-03-29 02:01:18,013 INFO L609 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. 17.07/7.97 [2019-03-29 02:01:18,014 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ 17.07/7.97 [2019-03-29 02:01:18,014 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 8 transitions. 17.07/7.97 [2019-03-29 02:01:18,014 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 17.07/7.97 [2019-03-29 02:01:18,014 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 17.07/7.97 [2019-03-29 02:01:18,014 INFO L119 BuchiIsEmpty]: Starting construction of run 17.07/7.97 [2019-03-29 02:01:18,015 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] 17.07/7.97 [2019-03-29 02:01:18,015 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] 17.07/7.97 [2019-03-29 02:01:18,015 INFO L794 eck$LassoCheckResult]: Stem: 95#ULTIMATE.startENTRY [48] ULTIMATE.startENTRY-->L21-2: Formula: (and (<= 0 v_ULTIMATE.start_main_~n~0_8) (< 0 v_ULTIMATE.start_main_~m~0_10) (= v_ULTIMATE.start_main_~n~0_8 v_ULTIMATE.start_main_~v1~0_9) (= 0 v_ULTIMATE.start_main_~v2~0_9)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_6|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_6|, ULTIMATE.start_main_~v2~0=v_ULTIMATE.start_main_~v2~0_9, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_10, ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_8, ULTIMATE.start_main_~v1~0=v_ULTIMATE.start_main_~v1~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~v2~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~m~0, ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~v1~0] 96#L21-2 [39] L21-2-->L21: Formula: (< 0 v_ULTIMATE.start_main_~v1~0_8) InVars {ULTIMATE.start_main_~v1~0=v_ULTIMATE.start_main_~v1~0_8} OutVars{ULTIMATE.start_main_~v1~0=v_ULTIMATE.start_main_~v1~0_8} AuxVars[] AssignedVars[] 91#L21 17.07/7.97 [2019-03-29 02:01:18,015 INFO L796 eck$LassoCheckResult]: Loop: 91#L21 [30] L21-->L21-2: Formula: (and (< v_ULTIMATE.start_main_~v2~0_2 v_ULTIMATE.start_main_~m~0_1) (= v_ULTIMATE.start_main_~v2~0_1 (+ v_ULTIMATE.start_main_~v2~0_2 1)) (= v_ULTIMATE.start_main_~v1~0_1 (+ v_ULTIMATE.start_main_~v1~0_2 (- 1)))) InVars {ULTIMATE.start_main_~v2~0=v_ULTIMATE.start_main_~v2~0_2, ULTIMATE.start_main_~v1~0=v_ULTIMATE.start_main_~v1~0_2, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_1} OutVars{ULTIMATE.start_main_~v2~0=v_ULTIMATE.start_main_~v2~0_1, ULTIMATE.start_main_~v1~0=v_ULTIMATE.start_main_~v1~0_1, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_1} AuxVars[] AssignedVars[ULTIMATE.start_main_~v2~0, ULTIMATE.start_main_~v1~0] 92#L21-2 [39] L21-2-->L21: Formula: (< 0 v_ULTIMATE.start_main_~v1~0_8) InVars {ULTIMATE.start_main_~v1~0=v_ULTIMATE.start_main_~v1~0_8} OutVars{ULTIMATE.start_main_~v1~0=v_ULTIMATE.start_main_~v1~0_8} AuxVars[] AssignedVars[] 91#L21 17.07/7.97 [2019-03-29 02:01:18,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 17.07/7.97 [2019-03-29 02:01:18,016 INFO L82 PathProgramCache]: Analyzing trace with hash 2488, now seen corresponding path program 1 times 17.07/7.97 [2019-03-29 02:01:18,016 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 17.07/7.97 [2019-03-29 02:01:18,017 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 17.07/7.97 [2019-03-29 02:01:18,018 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 17.07/7.97 [2019-03-29 02:01:18,018 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 17.07/7.97 [2019-03-29 02:01:18,018 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 17.07/7.97 [2019-03-29 02:01:18,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 17.07/7.97 [2019-03-29 02:01:18,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 17.07/7.97 [2019-03-29 02:01:18,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 17.07/7.97 [2019-03-29 02:01:18,025 INFO L82 PathProgramCache]: Analyzing trace with hash 1930, now seen corresponding path program 1 times 17.07/7.97 [2019-03-29 02:01:18,025 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 17.07/7.97 [2019-03-29 02:01:18,025 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 17.07/7.97 [2019-03-29 02:01:18,026 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 17.07/7.97 [2019-03-29 02:01:18,026 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 17.07/7.97 [2019-03-29 02:01:18,027 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 17.07/7.97 [2019-03-29 02:01:18,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 17.07/7.97 [2019-03-29 02:01:18,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 17.07/7.97 [2019-03-29 02:01:18,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 17.07/7.97 [2019-03-29 02:01:18,033 INFO L82 PathProgramCache]: Analyzing trace with hash 2391937, now seen corresponding path program 2 times 17.07/7.97 [2019-03-29 02:01:18,034 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 17.07/7.97 [2019-03-29 02:01:18,034 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 17.07/7.97 [2019-03-29 02:01:18,036 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 17.07/7.97 [2019-03-29 02:01:18,036 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 17.07/7.97 [2019-03-29 02:01:18,036 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 17.07/7.97 [2019-03-29 02:01:18,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 17.07/7.97 [2019-03-29 02:01:18,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 17.07/7.97 [2019-03-29 02:01:18,078 INFO L216 LassoAnalysis]: Preferences: 17.07/7.97 [2019-03-29 02:01:18,078 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 17.07/7.97 [2019-03-29 02:01:18,078 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 17.07/7.97 [2019-03-29 02:01:18,078 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 17.07/7.97 [2019-03-29 02:01:18,078 INFO L127 ssoRankerPreferences]: Use exernal solver: true 17.07/7.97 [2019-03-29 02:01:18,078 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 17.07/7.97 [2019-03-29 02:01:18,079 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 17.07/7.97 [2019-03-29 02:01:18,079 INFO L130 ssoRankerPreferences]: Path of dumped script: 17.07/7.97 [2019-03-29 02:01:18,079 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop 17.07/7.97 [2019-03-29 02:01:18,080 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 17.07/7.97 [2019-03-29 02:01:18,080 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 17.07/7.97 [2019-03-29 02:01:18,081 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 17.07/7.97 [2019-03-29 02:01:18,085 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 17.07/7.97 [2019-03-29 02:01:18,089 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 17.07/7.97 [2019-03-29 02:01:18,097 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 17.07/7.97 [2019-03-29 02:01:18,153 INFO L300 LassoAnalysis]: Preprocessing complete. 17.07/7.97 [2019-03-29 02:01:18,154 INFO L412 LassoAnalysis]: Checking for nontermination... 17.07/7.97 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 17.07/7.97 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 17.07/7.97 Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 17.07/7.97 [2019-03-29 02:01:18,158 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 17.07/7.97 [2019-03-29 02:01:18,159 INFO L163 nArgumentSynthesizer]: Using integer mode. 17.07/7.97 [2019-03-29 02:01:18,187 INFO L445 LassoAnalysis]: Proved nontermination for one component. 17.07/7.97 [2019-03-29 02:01:18,188 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 17.07/7.97 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 17.07/7.97 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 17.07/7.97 Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 17.07/7.97 [2019-03-29 02:01:18,193 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 17.07/7.97 [2019-03-29 02:01:18,194 INFO L163 nArgumentSynthesizer]: Using integer mode. 17.07/7.97 [2019-03-29 02:01:18,222 INFO L445 LassoAnalysis]: Proved nontermination for one component. 17.07/7.97 [2019-03-29 02:01:18,222 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] 17.07/7.97 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 17.07/7.97 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 17.07/7.97 Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 17.07/7.97 [2019-03-29 02:01:18,229 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 17.07/7.97 [2019-03-29 02:01:18,229 INFO L163 nArgumentSynthesizer]: Using integer mode. 17.07/7.97 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 17.07/7.97 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 17.07/7.97 Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 17.07/7.97 [2019-03-29 02:01:18,263 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true 17.07/7.97 [2019-03-29 02:01:18,263 INFO L163 nArgumentSynthesizer]: Using integer mode. 17.07/7.97 [2019-03-29 02:01:18,469 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. 17.07/7.97 [2019-03-29 02:01:18,471 INFO L216 LassoAnalysis]: Preferences: 17.07/7.97 [2019-03-29 02:01:18,471 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 17.07/7.97 [2019-03-29 02:01:18,471 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 17.07/7.97 [2019-03-29 02:01:18,471 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 17.07/7.97 [2019-03-29 02:01:18,472 INFO L127 ssoRankerPreferences]: Use exernal solver: false 17.07/7.97 [2019-03-29 02:01:18,472 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 17.07/7.97 [2019-03-29 02:01:18,472 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 17.07/7.97 [2019-03-29 02:01:18,472 INFO L130 ssoRankerPreferences]: Path of dumped script: 17.07/7.97 [2019-03-29 02:01:18,473 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop 17.07/7.97 [2019-03-29 02:01:18,473 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 17.07/7.97 [2019-03-29 02:01:18,473 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 17.07/7.97 [2019-03-29 02:01:18,474 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 17.07/7.97 [2019-03-29 02:01:18,477 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 17.07/7.97 [2019-03-29 02:01:18,489 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 17.07/7.97 [2019-03-29 02:01:18,495 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 17.07/7.97 [2019-03-29 02:01:18,548 INFO L300 LassoAnalysis]: Preprocessing complete. 17.07/7.97 [2019-03-29 02:01:18,548 INFO L497 LassoAnalysis]: Using template 'affine'. 17.07/7.97 [2019-03-29 02:01:18,549 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 17.07/7.97 Termination analysis: LINEAR_WITH_GUESSES 17.07/7.97 Number of strict supporting invariants: 0 17.07/7.97 Number of non-strict supporting invariants: 1 17.07/7.97 Consider only non-deceasing supporting invariants: true 17.07/7.97 Simplify termination arguments: true 17.07/7.97 Simplify supporting invariants: trueOverapproximate stem: false 17.07/7.97 [2019-03-29 02:01:18,549 INFO L339 nArgumentSynthesizer]: Template has degree 0. 17.07/7.97 [2019-03-29 02:01:18,550 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 17.07/7.97 [2019-03-29 02:01:18,550 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 17.07/7.97 [2019-03-29 02:01:18,550 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 17.07/7.97 [2019-03-29 02:01:18,551 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. 17.07/7.97 [2019-03-29 02:01:18,551 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. 17.07/7.97 [2019-03-29 02:01:18,555 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. 17.07/7.97 [2019-03-29 02:01:18,556 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 17.07/7.97 Termination analysis: LINEAR_WITH_GUESSES 17.07/7.97 Number of strict supporting invariants: 0 17.07/7.97 Number of non-strict supporting invariants: 1 17.07/7.97 Consider only non-deceasing supporting invariants: true 17.07/7.97 Simplify termination arguments: true 17.07/7.97 Simplify supporting invariants: trueOverapproximate stem: false 17.07/7.97 [2019-03-29 02:01:18,556 INFO L339 nArgumentSynthesizer]: Template has degree 0. 17.07/7.97 [2019-03-29 02:01:18,556 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 17.07/7.97 [2019-03-29 02:01:18,556 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 17.07/7.97 [2019-03-29 02:01:18,557 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 17.07/7.97 [2019-03-29 02:01:18,557 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 17.07/7.97 [2019-03-29 02:01:18,557 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 17.07/7.97 [2019-03-29 02:01:18,557 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 17.07/7.97 [2019-03-29 02:01:18,561 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. 17.07/7.97 [2019-03-29 02:01:18,565 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. 17.07/7.97 [2019-03-29 02:01:18,565 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. 17.07/7.97 [2019-03-29 02:01:18,565 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... 17.07/7.97 [2019-03-29 02:01:18,565 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. 17.07/7.97 [2019-03-29 02:01:18,565 INFO L518 LassoAnalysis]: Proved termination. 17.07/7.97 [2019-03-29 02:01:18,566 INFO L520 LassoAnalysis]: Termination argument consisting of: 17.07/7.97 Ranking function f(ULTIMATE.start_main_~m~0, ULTIMATE.start_main_~v2~0) = 1*ULTIMATE.start_main_~m~0 - 1*ULTIMATE.start_main_~v2~0 17.07/7.97 Supporting invariants [] 17.07/7.97 [2019-03-29 02:01:18,566 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed 17.07/7.97 [2019-03-29 02:01:18,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 17.07/7.97 [2019-03-29 02:01:18,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 17.07/7.97 [2019-03-29 02:01:18,588 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core 17.07/7.97 [2019-03-29 02:01:18,588 INFO L279 TraceCheckSpWp]: Computing forward predicates... 17.07/7.97 [2019-03-29 02:01:18,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 17.07/7.97 [2019-03-29 02:01:18,593 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core 17.07/7.97 [2019-03-29 02:01:18,593 INFO L279 TraceCheckSpWp]: Computing forward predicates... 17.07/7.97 [2019-03-29 02:01:18,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. 17.07/7.97 [2019-03-29 02:01:18,630 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization 17.07/7.97 [2019-03-29 02:01:18,631 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 17.07/7.97 [2019-03-29 02:01:18,631 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 6 states and 8 transitions. cyclomatic complexity: 3 Second operand 3 states. 17.07/7.97 [2019-03-29 02:01:18,641 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 6 states and 8 transitions. cyclomatic complexity: 3. Second operand 3 states. Result 10 states and 12 transitions. Complement of second has 4 states. 17.07/7.97 [2019-03-29 02:01:18,641 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states 17.07/7.97 [2019-03-29 02:01:18,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. 17.07/7.97 [2019-03-29 02:01:18,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. 17.07/7.97 [2019-03-29 02:01:18,642 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 2 letters. Loop has 2 letters. 17.07/7.97 [2019-03-29 02:01:18,642 INFO L116 BuchiAccepts]: Finished buchiAccepts. 17.07/7.97 [2019-03-29 02:01:18,643 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 4 letters. Loop has 2 letters. 17.07/7.97 [2019-03-29 02:01:18,643 INFO L116 BuchiAccepts]: Finished buchiAccepts. 17.07/7.97 [2019-03-29 02:01:18,644 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 2 letters. Loop has 4 letters. 17.07/7.97 [2019-03-29 02:01:18,644 INFO L116 BuchiAccepts]: Finished buchiAccepts. 17.07/7.97 [2019-03-29 02:01:18,645 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 12 transitions. 17.07/7.97 [2019-03-29 02:01:18,646 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 17.07/7.97 [2019-03-29 02:01:18,665 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 8 states and 10 transitions. 17.07/7.97 [2019-03-29 02:01:18,666 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 17.07/7.97 [2019-03-29 02:01:18,666 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3 17.07/7.97 [2019-03-29 02:01:18,666 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 10 transitions. 17.07/7.97 [2019-03-29 02:01:18,666 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. 17.07/7.97 [2019-03-29 02:01:18,666 INFO L706 BuchiCegarLoop]: Abstraction has 8 states and 10 transitions. 17.07/7.97 [2019-03-29 02:01:18,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 10 transitions. 17.07/7.97 [2019-03-29 02:01:18,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. 17.07/7.97 [2019-03-29 02:01:18,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. 17.07/7.97 [2019-03-29 02:01:18,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. 17.07/7.97 [2019-03-29 02:01:18,668 INFO L729 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. 17.07/7.97 [2019-03-29 02:01:18,668 INFO L609 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. 17.07/7.97 [2019-03-29 02:01:18,668 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ 17.07/7.97 [2019-03-29 02:01:18,668 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. 17.07/7.97 [2019-03-29 02:01:18,668 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 17.07/7.97 [2019-03-29 02:01:18,668 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 17.07/7.97 [2019-03-29 02:01:18,668 INFO L119 BuchiIsEmpty]: Starting construction of run 17.07/7.97 [2019-03-29 02:01:18,669 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] 17.07/7.97 [2019-03-29 02:01:18,669 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1] 17.07/7.97 [2019-03-29 02:01:18,669 INFO L794 eck$LassoCheckResult]: Stem: 144#ULTIMATE.startENTRY [48] ULTIMATE.startENTRY-->L21-2: Formula: (and (<= 0 v_ULTIMATE.start_main_~n~0_8) (< 0 v_ULTIMATE.start_main_~m~0_10) (= v_ULTIMATE.start_main_~n~0_8 v_ULTIMATE.start_main_~v1~0_9) (= 0 v_ULTIMATE.start_main_~v2~0_9)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_6|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_6|, ULTIMATE.start_main_~v2~0=v_ULTIMATE.start_main_~v2~0_9, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_10, ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_8, ULTIMATE.start_main_~v1~0=v_ULTIMATE.start_main_~v1~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~v2~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~m~0, ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~v1~0] 145#L21-2 [39] L21-2-->L21: Formula: (< 0 v_ULTIMATE.start_main_~v1~0_8) InVars {ULTIMATE.start_main_~v1~0=v_ULTIMATE.start_main_~v1~0_8} OutVars{ULTIMATE.start_main_~v1~0=v_ULTIMATE.start_main_~v1~0_8} AuxVars[] AssignedVars[] 141#L21 17.07/7.97 [2019-03-29 02:01:18,669 INFO L796 eck$LassoCheckResult]: Loop: 141#L21 [30] L21-->L21-2: Formula: (and (< v_ULTIMATE.start_main_~v2~0_2 v_ULTIMATE.start_main_~m~0_1) (= v_ULTIMATE.start_main_~v2~0_1 (+ v_ULTIMATE.start_main_~v2~0_2 1)) (= v_ULTIMATE.start_main_~v1~0_1 (+ v_ULTIMATE.start_main_~v1~0_2 (- 1)))) InVars {ULTIMATE.start_main_~v2~0=v_ULTIMATE.start_main_~v2~0_2, ULTIMATE.start_main_~v1~0=v_ULTIMATE.start_main_~v1~0_2, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_1} OutVars{ULTIMATE.start_main_~v2~0=v_ULTIMATE.start_main_~v2~0_1, ULTIMATE.start_main_~v1~0=v_ULTIMATE.start_main_~v1~0_1, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_1} AuxVars[] AssignedVars[ULTIMATE.start_main_~v2~0, ULTIMATE.start_main_~v1~0] 142#L21-2 [39] L21-2-->L21: Formula: (< 0 v_ULTIMATE.start_main_~v1~0_8) InVars {ULTIMATE.start_main_~v1~0=v_ULTIMATE.start_main_~v1~0_8} OutVars{ULTIMATE.start_main_~v1~0=v_ULTIMATE.start_main_~v1~0_8} AuxVars[] AssignedVars[] 146#L21 [43] L21-->L21-2: Formula: (and (= v_ULTIMATE.start_main_~v2~0_6 0) (>= v_ULTIMATE.start_main_~v2~0_7 v_ULTIMATE.start_main_~m~0_7)) InVars {ULTIMATE.start_main_~v2~0=v_ULTIMATE.start_main_~v2~0_7, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_7} OutVars{ULTIMATE.start_main_~v2~0=v_ULTIMATE.start_main_~v2~0_6, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~v2~0] 147#L21-2 [39] L21-2-->L21: Formula: (< 0 v_ULTIMATE.start_main_~v1~0_8) InVars {ULTIMATE.start_main_~v1~0=v_ULTIMATE.start_main_~v1~0_8} OutVars{ULTIMATE.start_main_~v1~0=v_ULTIMATE.start_main_~v1~0_8} AuxVars[] AssignedVars[] 141#L21 17.07/7.97 [2019-03-29 02:01:18,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 17.07/7.97 [2019-03-29 02:01:18,670 INFO L82 PathProgramCache]: Analyzing trace with hash 2488, now seen corresponding path program 2 times 17.07/7.97 [2019-03-29 02:01:18,670 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 17.07/7.97 [2019-03-29 02:01:18,670 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 17.07/7.97 [2019-03-29 02:01:18,672 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 17.07/7.97 [2019-03-29 02:01:18,672 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY 17.07/7.97 [2019-03-29 02:01:18,672 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 17.07/7.97 [2019-03-29 02:01:18,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 17.07/7.97 [2019-03-29 02:01:18,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 17.07/7.97 [2019-03-29 02:01:18,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 17.07/7.97 [2019-03-29 02:01:18,677 INFO L82 PathProgramCache]: Analyzing trace with hash 1856102, now seen corresponding path program 1 times 17.07/7.97 [2019-03-29 02:01:18,678 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 17.07/7.97 [2019-03-29 02:01:18,678 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 17.07/7.97 [2019-03-29 02:01:18,678 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 17.07/7.97 [2019-03-29 02:01:18,679 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY 17.07/7.97 [2019-03-29 02:01:18,679 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 17.07/7.97 [2019-03-29 02:01:18,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 17.07/7.97 [2019-03-29 02:01:18,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 17.07/7.97 [2019-03-29 02:01:18,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 17.07/7.97 [2019-03-29 02:01:18,685 INFO L82 PathProgramCache]: Analyzing trace with hash -1996314467, now seen corresponding path program 2 times 17.07/7.97 [2019-03-29 02:01:18,685 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 17.07/7.97 [2019-03-29 02:01:18,685 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 17.07/7.97 [2019-03-29 02:01:18,686 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 17.07/7.97 [2019-03-29 02:01:18,686 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 17.07/7.97 [2019-03-29 02:01:18,686 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 17.07/7.97 [2019-03-29 02:01:18,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 17.07/7.97 [2019-03-29 02:01:18,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 17.07/7.97 [2019-03-29 02:01:18,715 INFO L216 LassoAnalysis]: Preferences: 17.07/7.97 [2019-03-29 02:01:18,716 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 17.07/7.97 [2019-03-29 02:01:18,716 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 17.07/7.97 [2019-03-29 02:01:18,716 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 17.07/7.97 [2019-03-29 02:01:18,716 INFO L127 ssoRankerPreferences]: Use exernal solver: true 17.07/7.97 [2019-03-29 02:01:18,716 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 17.07/7.97 [2019-03-29 02:01:18,716 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 17.07/7.97 [2019-03-29 02:01:18,717 INFO L130 ssoRankerPreferences]: Path of dumped script: 17.07/7.97 [2019-03-29 02:01:18,717 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop 17.07/7.97 [2019-03-29 02:01:18,717 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 17.07/7.97 [2019-03-29 02:01:18,717 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 17.07/7.97 [2019-03-29 02:01:18,719 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 17.07/7.97 [2019-03-29 02:01:18,721 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 17.07/7.97 [2019-03-29 02:01:18,731 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 17.07/7.97 [2019-03-29 02:01:18,734 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 17.07/7.97 [2019-03-29 02:01:18,795 INFO L300 LassoAnalysis]: Preprocessing complete. 17.07/7.97 [2019-03-29 02:01:18,796 INFO L412 LassoAnalysis]: Checking for nontermination... 17.07/7.97 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 17.07/7.97 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 17.07/7.97 Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 17.07/7.97 [2019-03-29 02:01:18,804 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 17.07/7.97 [2019-03-29 02:01:18,804 INFO L163 nArgumentSynthesizer]: Using integer mode. 17.07/7.97 [2019-03-29 02:01:18,832 INFO L445 LassoAnalysis]: Proved nontermination for one component. 17.07/7.97 [2019-03-29 02:01:18,832 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] 17.07/7.97 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 17.07/7.97 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 17.07/7.97 Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 17.07/7.97 [2019-03-29 02:01:18,837 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 17.07/7.97 [2019-03-29 02:01:18,838 INFO L163 nArgumentSynthesizer]: Using integer mode. 17.07/7.97 [2019-03-29 02:01:18,843 INFO L445 LassoAnalysis]: Proved nontermination for one component. 17.07/7.97 [2019-03-29 02:01:18,843 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~v2~0=0, ULTIMATE.start_main_~m~0=1} Honda state: {ULTIMATE.start_main_~v2~0=0, ULTIMATE.start_main_~m~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] 17.07/7.97 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 17.07/7.97 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 17.07/7.97 Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 17.07/7.97 [2019-03-29 02:01:18,870 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 17.07/7.97 [2019-03-29 02:01:18,871 INFO L163 nArgumentSynthesizer]: Using integer mode. 17.07/7.97 [2019-03-29 02:01:18,897 INFO L445 LassoAnalysis]: Proved nontermination for one component. 17.07/7.97 [2019-03-29 02:01:18,897 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_5=0} Honda state: {v_rep~unnamed0~0~false_5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 17.07/7.97 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 17.07/7.97 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 17.07/7.97 Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 17.07/7.97 [2019-03-29 02:01:18,923 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 17.07/7.97 [2019-03-29 02:01:18,923 INFO L163 nArgumentSynthesizer]: Using integer mode. 17.07/7.97 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 17.07/7.97 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 17.07/7.97 Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 17.07/7.97 [2019-03-29 02:01:18,953 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true 17.07/7.97 [2019-03-29 02:01:18,953 INFO L163 nArgumentSynthesizer]: Using integer mode. 17.07/7.97 [2019-03-29 02:01:19,037 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. 17.07/7.97 [2019-03-29 02:01:19,039 INFO L216 LassoAnalysis]: Preferences: 17.07/7.97 [2019-03-29 02:01:19,039 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 17.07/7.97 [2019-03-29 02:01:19,039 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 17.07/7.97 [2019-03-29 02:01:19,039 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 17.07/7.97 [2019-03-29 02:01:19,040 INFO L127 ssoRankerPreferences]: Use exernal solver: false 17.07/7.97 [2019-03-29 02:01:19,040 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 17.07/7.97 [2019-03-29 02:01:19,040 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 17.07/7.97 [2019-03-29 02:01:19,040 INFO L130 ssoRankerPreferences]: Path of dumped script: 17.07/7.97 [2019-03-29 02:01:19,040 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop 17.07/7.97 [2019-03-29 02:01:19,040 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 17.07/7.97 [2019-03-29 02:01:19,040 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 17.07/7.97 [2019-03-29 02:01:19,042 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 17.07/7.97 [2019-03-29 02:01:19,047 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 17.07/7.97 [2019-03-29 02:01:19,053 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 17.07/7.97 [2019-03-29 02:01:19,055 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 17.07/7.97 [2019-03-29 02:01:19,103 INFO L300 LassoAnalysis]: Preprocessing complete. 17.07/7.97 [2019-03-29 02:01:19,104 INFO L497 LassoAnalysis]: Using template 'affine'. 17.07/7.97 [2019-03-29 02:01:19,104 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 17.07/7.97 Termination analysis: LINEAR_WITH_GUESSES 17.07/7.97 Number of strict supporting invariants: 0 17.07/7.97 Number of non-strict supporting invariants: 1 17.07/7.97 Consider only non-deceasing supporting invariants: true 17.07/7.97 Simplify termination arguments: true 17.07/7.97 Simplify supporting invariants: trueOverapproximate stem: false 17.07/7.97 [2019-03-29 02:01:19,105 INFO L339 nArgumentSynthesizer]: Template has degree 0. 17.07/7.97 [2019-03-29 02:01:19,105 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 17.07/7.97 [2019-03-29 02:01:19,105 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 17.07/7.97 [2019-03-29 02:01:19,105 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 17.07/7.97 [2019-03-29 02:01:19,107 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. 17.07/7.97 [2019-03-29 02:01:19,107 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. 17.07/7.97 [2019-03-29 02:01:19,111 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. 17.07/7.97 [2019-03-29 02:01:19,112 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 17.07/7.97 Termination analysis: LINEAR_WITH_GUESSES 17.07/7.97 Number of strict supporting invariants: 0 17.07/7.97 Number of non-strict supporting invariants: 1 17.07/7.97 Consider only non-deceasing supporting invariants: true 17.07/7.97 Simplify termination arguments: true 17.07/7.97 Simplify supporting invariants: trueOverapproximate stem: false 17.07/7.97 [2019-03-29 02:01:19,112 INFO L339 nArgumentSynthesizer]: Template has degree 0. 17.07/7.97 [2019-03-29 02:01:19,112 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 17.07/7.97 [2019-03-29 02:01:19,113 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 17.07/7.97 [2019-03-29 02:01:19,113 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 17.07/7.97 [2019-03-29 02:01:19,113 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 17.07/7.97 [2019-03-29 02:01:19,113 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 17.07/7.97 [2019-03-29 02:01:19,114 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 17.07/7.97 [2019-03-29 02:01:19,116 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. 17.07/7.97 [2019-03-29 02:01:19,117 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 17.07/7.97 Termination analysis: LINEAR_WITH_GUESSES 17.07/7.97 Number of strict supporting invariants: 0 17.07/7.97 Number of non-strict supporting invariants: 1 17.07/7.97 Consider only non-deceasing supporting invariants: true 17.07/7.97 Simplify termination arguments: true 17.07/7.97 Simplify supporting invariants: trueOverapproximate stem: false 17.07/7.97 [2019-03-29 02:01:19,117 INFO L339 nArgumentSynthesizer]: Template has degree 0. 17.07/7.97 [2019-03-29 02:01:19,117 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 17.07/7.97 [2019-03-29 02:01:19,118 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 17.07/7.97 [2019-03-29 02:01:19,118 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 17.07/7.97 [2019-03-29 02:01:19,119 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. 17.07/7.97 [2019-03-29 02:01:19,119 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. 17.07/7.97 [2019-03-29 02:01:19,122 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. 17.07/7.97 [2019-03-29 02:01:19,122 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 17.07/7.97 Termination analysis: LINEAR_WITH_GUESSES 17.07/7.97 Number of strict supporting invariants: 0 17.07/7.97 Number of non-strict supporting invariants: 1 17.07/7.97 Consider only non-deceasing supporting invariants: true 17.07/7.97 Simplify termination arguments: true 17.07/7.97 Simplify supporting invariants: trueOverapproximate stem: false 17.07/7.97 [2019-03-29 02:01:19,122 INFO L339 nArgumentSynthesizer]: Template has degree 0. 17.07/7.97 [2019-03-29 02:01:19,123 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 17.07/7.97 [2019-03-29 02:01:19,123 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 17.07/7.97 [2019-03-29 02:01:19,123 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 17.07/7.97 [2019-03-29 02:01:19,123 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 17.07/7.97 [2019-03-29 02:01:19,123 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 17.07/7.97 [2019-03-29 02:01:19,124 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 17.07/7.97 [2019-03-29 02:01:19,127 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. 17.07/7.97 [2019-03-29 02:01:19,129 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. 17.07/7.97 [2019-03-29 02:01:19,129 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. 17.07/7.97 [2019-03-29 02:01:19,129 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... 17.07/7.97 [2019-03-29 02:01:19,129 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. 17.07/7.97 [2019-03-29 02:01:19,130 INFO L518 LassoAnalysis]: Proved termination. 17.07/7.97 [2019-03-29 02:01:19,130 INFO L520 LassoAnalysis]: Termination argument consisting of: 17.07/7.97 Ranking function f(ULTIMATE.start_main_~v1~0) = 1*ULTIMATE.start_main_~v1~0 17.07/7.97 Supporting invariants [] 17.07/7.97 [2019-03-29 02:01:19,130 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed 17.07/7.97 [2019-03-29 02:01:19,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 17.07/7.97 [2019-03-29 02:01:19,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 17.07/7.97 [2019-03-29 02:01:19,149 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core 17.07/7.97 [2019-03-29 02:01:19,150 INFO L279 TraceCheckSpWp]: Computing forward predicates... 17.07/7.97 [2019-03-29 02:01:19,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 17.07/7.97 [2019-03-29 02:01:19,155 INFO L256 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core 17.07/7.97 [2019-03-29 02:01:19,156 INFO L279 TraceCheckSpWp]: Computing forward predicates... 17.07/7.97 [2019-03-29 02:01:19,175 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. 17.07/7.97 [2019-03-29 02:01:19,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 17.07/7.97 [2019-03-29 02:01:19,188 INFO L256 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core 17.07/7.97 [2019-03-29 02:01:19,188 INFO L279 TraceCheckSpWp]: Computing forward predicates... 17.07/7.97 [2019-03-29 02:01:19,190 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization 17.07/7.97 [2019-03-29 02:01:19,190 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 17.07/7.97 [2019-03-29 02:01:19,190 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 7 states and 9 transitions. cyclomatic complexity: 3 Second operand 4 states. 17.07/7.97 [2019-03-29 02:01:19,229 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 7 states and 9 transitions. cyclomatic complexity: 3. Second operand 4 states. Result 13 states and 16 transitions. Complement of second has 8 states. 17.07/7.97 [2019-03-29 02:01:19,229 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 2 accepting loop states 17.07/7.97 [2019-03-29 02:01:19,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. 17.07/7.97 [2019-03-29 02:01:19,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. 17.07/7.97 [2019-03-29 02:01:19,230 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 2 letters. Loop has 4 letters. 17.07/7.97 [2019-03-29 02:01:19,230 INFO L116 BuchiAccepts]: Finished buchiAccepts. 17.07/7.97 [2019-03-29 02:01:19,231 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 6 letters. Loop has 4 letters. 17.07/7.97 [2019-03-29 02:01:19,231 INFO L116 BuchiAccepts]: Finished buchiAccepts. 17.07/7.97 [2019-03-29 02:01:19,231 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 2 letters. Loop has 8 letters. 17.07/7.97 [2019-03-29 02:01:19,232 INFO L116 BuchiAccepts]: Finished buchiAccepts. 17.07/7.97 [2019-03-29 02:01:19,233 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 16 transitions. 17.07/7.97 [2019-03-29 02:01:19,234 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 17.07/7.97 [2019-03-29 02:01:19,234 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 0 states and 0 transitions. 17.07/7.97 [2019-03-29 02:01:19,234 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 17.07/7.97 [2019-03-29 02:01:19,234 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 17.07/7.97 [2019-03-29 02:01:19,234 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. 17.07/7.97 [2019-03-29 02:01:19,234 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. 17.07/7.97 [2019-03-29 02:01:19,234 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. 17.07/7.97 [2019-03-29 02:01:19,234 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. 17.07/7.97 [2019-03-29 02:01:19,235 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. 17.07/7.97 [2019-03-29 02:01:19,235 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ 17.07/7.97 [2019-03-29 02:01:19,235 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. 17.07/7.97 [2019-03-29 02:01:19,235 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 17.07/7.97 [2019-03-29 02:01:19,235 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true 17.07/7.97 [2019-03-29 02:01:19,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.03 02:01:19 BasicIcfg 17.07/7.97 [2019-03-29 02:01:19,241 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- 17.07/7.97 [2019-03-29 02:01:19,242 INFO L168 Benchmark]: Toolchain (without parser) took 3427.49 ms. Allocated memory was 649.6 MB in the beginning and 747.1 MB in the end (delta: 97.5 MB). Free memory was 558.5 MB in the beginning and 658.6 MB in the end (delta: -100.1 MB). There was no memory consumed. Max. memory is 50.3 GB. 17.07/7.97 [2019-03-29 02:01:19,243 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 580.0 MB. There was no memory consumed. Max. memory is 50.3 GB. 17.07/7.97 [2019-03-29 02:01:19,244 INFO L168 Benchmark]: CACSL2BoogieTranslator took 290.97 ms. Allocated memory was 649.6 MB in the beginning and 671.6 MB in the end (delta: 22.0 MB). Free memory was 558.5 MB in the beginning and 639.2 MB in the end (delta: -80.7 MB). Peak memory consumption was 30.0 MB. Max. memory is 50.3 GB. 17.07/7.97 [2019-03-29 02:01:19,244 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.64 ms. Allocated memory is still 671.6 MB. Free memory was 639.2 MB in the beginning and 637.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. 17.07/7.97 [2019-03-29 02:01:19,245 INFO L168 Benchmark]: Boogie Preprocessor took 20.54 ms. Allocated memory is still 671.6 MB. Free memory was 637.8 MB in the beginning and 636.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. 17.07/7.97 [2019-03-29 02:01:19,246 INFO L168 Benchmark]: RCFGBuilder took 213.65 ms. Allocated memory is still 671.6 MB. Free memory was 636.5 MB in the beginning and 621.8 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 50.3 GB. 17.07/7.97 [2019-03-29 02:01:19,246 INFO L168 Benchmark]: BlockEncodingV2 took 87.55 ms. Allocated memory is still 671.6 MB. Free memory was 621.8 MB in the beginning and 616.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. 17.07/7.97 [2019-03-29 02:01:19,247 INFO L168 Benchmark]: TraceAbstraction took 156.66 ms. Allocated memory is still 671.6 MB. Free memory was 615.1 MB in the beginning and 606.9 MB in the end (delta: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 50.3 GB. 17.07/7.97 [2019-03-29 02:01:19,247 INFO L168 Benchmark]: BuchiAutomizer took 2615.32 ms. Allocated memory was 671.6 MB in the beginning and 747.1 MB in the end (delta: 75.5 MB). Free memory was 606.9 MB in the beginning and 658.6 MB in the end (delta: -51.7 MB). Peak memory consumption was 23.8 MB. Max. memory is 50.3 GB. 17.07/7.97 [2019-03-29 02:01:19,251 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### 17.07/7.97 --- Results --- 17.07/7.97 * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: 17.07/7.97 - StatisticsResult: Initial Icfg 17.07/7.97 8 locations, 11 edges 17.07/7.97 - StatisticsResult: Encoded RCFG 17.07/7.97 3 locations, 4 edges 17.07/7.97 * Results from de.uni_freiburg.informatik.ultimate.core: 17.07/7.97 - StatisticsResult: Toolchain Benchmarks 17.07/7.97 Benchmark results are: 17.07/7.97 * CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 580.0 MB. There was no memory consumed. Max. memory is 50.3 GB. 17.07/7.97 * CACSL2BoogieTranslator took 290.97 ms. Allocated memory was 649.6 MB in the beginning and 671.6 MB in the end (delta: 22.0 MB). Free memory was 558.5 MB in the beginning and 639.2 MB in the end (delta: -80.7 MB). Peak memory consumption was 30.0 MB. Max. memory is 50.3 GB. 17.07/7.97 * Boogie Procedure Inliner took 37.64 ms. Allocated memory is still 671.6 MB. Free memory was 639.2 MB in the beginning and 637.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. 17.07/7.97 * Boogie Preprocessor took 20.54 ms. Allocated memory is still 671.6 MB. Free memory was 637.8 MB in the beginning and 636.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. 17.07/7.97 * RCFGBuilder took 213.65 ms. Allocated memory is still 671.6 MB. Free memory was 636.5 MB in the beginning and 621.8 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 50.3 GB. 17.07/7.97 * BlockEncodingV2 took 87.55 ms. Allocated memory is still 671.6 MB. Free memory was 621.8 MB in the beginning and 616.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. 17.07/7.97 * TraceAbstraction took 156.66 ms. Allocated memory is still 671.6 MB. Free memory was 615.1 MB in the beginning and 606.9 MB in the end (delta: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 50.3 GB. 17.07/7.97 * BuchiAutomizer took 2615.32 ms. Allocated memory was 671.6 MB in the beginning and 747.1 MB in the end (delta: 75.5 MB). Free memory was 606.9 MB in the beginning and 658.6 MB in the end (delta: -51.7 MB). Peak memory consumption was 23.8 MB. Max. memory is 50.3 GB. 17.07/7.97 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: 17.07/7.97 - AllSpecificationsHoldResult: All specifications hold 17.07/7.97 We were not able to verify any specifiation because the program does not contain any specification. 17.07/7.97 - InvariantResult [Line: 20]: Loop Invariant 17.07/7.97 Derived loop invariant: 1 17.07/7.97 - StatisticsResult: Ultimate Automizer benchmark data 17.07/7.97 CFG has 1 procedures, 3 locations, 0 error locations. SAFE Result, 0.0s OverallTime, 0 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 1 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available 17.07/7.97 - StatisticsResult: Constructed decomposition of program 17.07/7.97 Your program was decomposed into 4 terminating modules (1 trivial, 0 deterministic, 3 nondeterministic). One nondeterministic module has affine ranking function 2 * v2 + -2 * m + 1 and consists of 5 locations. One nondeterministic module has affine ranking function m + -1 * v2 and consists of 3 locations. One nondeterministic module has affine ranking function v1 and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. 17.07/7.97 - StatisticsResult: Timing statistics 17.07/7.97 BüchiAutomizer plugin needed 2.5s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 2.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 7 states and ocurred in iteration 3. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 2/2 HoareTripleCheckerStatistics: 12 SDtfs, 24 SDslu, 8 SDs, 0 SdLazy, 31 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital21 mio100 ax157 hnf100 lsp36 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq149 hnf92 smp100 dnf100 smp100 tf108 neg100 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 9ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 10 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.7s 17.07/7.97 - TerminationAnalysisResult: Termination proven 17.07/7.97 Buchi Automizer proved that your program is terminating 17.07/7.97 RESULT: Ultimate proved your program to be correct! 17.07/7.97 !SESSION 2019-03-29 02:01:12.478 ----------------------------------------------- 17.07/7.97 eclipse.buildId=unknown 17.07/7.97 java.version=1.8.0_181 17.07/7.97 java.vendor=Oracle Corporation 17.07/7.97 BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US 17.07/7.97 Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox/benchmark/theBenchmark.c 17.07/7.97 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 17.07/7.97 17.07/7.97 !ENTRY org.eclipse.core.resources 2 10035 2019-03-29 02:01:19.483 17.07/7.97 !MESSAGE The workspace will exit with unsaved changes in this session. 17.07/7.97 Received shutdown request... 17.07/7.97 Ultimate: 17.07/7.97 GTK+ Version Check 17.07/7.97 EOF