15.25/8.08 YES 15.25/8.08 15.25/8.08 Ultimate: Cannot open display: 15.25/8.08 This is Ultimate 0.1.24-8dc7c08-m 15.25/8.08 [2019-03-28 22:41:15,779 INFO L170 SettingsManager]: Resetting all preferences to default values... 15.25/8.08 [2019-03-28 22:41:15,781 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values 15.25/8.08 [2019-03-28 22:41:15,793 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 15.25/8.08 [2019-03-28 22:41:15,793 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values 15.25/8.08 [2019-03-28 22:41:15,794 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values 15.25/8.08 [2019-03-28 22:41:15,795 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values 15.25/8.08 [2019-03-28 22:41:15,797 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values 15.25/8.08 [2019-03-28 22:41:15,798 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values 15.25/8.08 [2019-03-28 22:41:15,799 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values 15.25/8.08 [2019-03-28 22:41:15,800 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 15.25/8.08 [2019-03-28 22:41:15,800 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values 15.25/8.08 [2019-03-28 22:41:15,801 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values 15.25/8.08 [2019-03-28 22:41:15,802 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values 15.25/8.08 [2019-03-28 22:41:15,803 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values 15.25/8.08 [2019-03-28 22:41:15,804 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values 15.25/8.08 [2019-03-28 22:41:15,805 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values 15.25/8.08 [2019-03-28 22:41:15,806 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values 15.25/8.08 [2019-03-28 22:41:15,808 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values 15.25/8.08 [2019-03-28 22:41:15,810 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values 15.25/8.08 [2019-03-28 22:41:15,811 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values 15.25/8.08 [2019-03-28 22:41:15,812 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values 15.25/8.08 [2019-03-28 22:41:15,814 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 15.25/8.08 [2019-03-28 22:41:15,814 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... 15.25/8.08 [2019-03-28 22:41:15,814 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values 15.25/8.08 [2019-03-28 22:41:15,815 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values 15.25/8.08 [2019-03-28 22:41:15,816 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values 15.25/8.08 [2019-03-28 22:41:15,817 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... 15.25/8.08 [2019-03-28 22:41:15,817 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values 15.25/8.08 [2019-03-28 22:41:15,817 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values 15.25/8.08 [2019-03-28 22:41:15,818 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values 15.25/8.08 [2019-03-28 22:41:15,819 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values 15.25/8.08 [2019-03-28 22:41:15,820 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... 15.25/8.08 [2019-03-28 22:41:15,820 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values 15.25/8.08 [2019-03-28 22:41:15,821 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 15.25/8.08 [2019-03-28 22:41:15,821 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... 15.25/8.08 [2019-03-28 22:41:15,821 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values 15.25/8.08 [2019-03-28 22:41:15,822 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values 15.25/8.08 [2019-03-28 22:41:15,822 INFO L181 SettingsManager]: Finished resetting all preferences to default values... 15.25/8.08 [2019-03-28 22:41:15,823 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf 15.25/8.08 [2019-03-28 22:41:15,837 INFO L110 SettingsManager]: Loading preferences was successful 15.25/8.08 [2019-03-28 22:41:15,838 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: 15.25/8.08 [2019-03-28 22:41:15,839 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: 15.25/8.08 [2019-03-28 22:41:15,839 INFO L133 SettingsManager]: * Rewrite not-equals=true 15.25/8.08 [2019-03-28 22:41:15,839 INFO L133 SettingsManager]: * Create parallel compositions if possible=false 15.25/8.08 [2019-03-28 22:41:15,839 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE 15.25/8.08 [2019-03-28 22:41:15,839 INFO L133 SettingsManager]: * Use SBE=true 15.25/8.08 [2019-03-28 22:41:15,840 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: 15.25/8.08 [2019-03-28 22:41:15,840 INFO L133 SettingsManager]: * Use old map elimination=false 15.25/8.08 [2019-03-28 22:41:15,840 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false 15.25/8.08 [2019-03-28 22:41:15,840 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION 15.25/8.08 [2019-03-28 22:41:15,840 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true 15.25/8.08 [2019-03-28 22:41:15,840 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES 15.25/8.08 [2019-03-28 22:41:15,841 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true 15.25/8.08 [2019-03-28 22:41:15,841 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 15.25/8.08 [2019-03-28 22:41:15,841 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: 15.25/8.08 [2019-03-28 22:41:15,841 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false 15.25/8.08 [2019-03-28 22:41:15,841 INFO L133 SettingsManager]: * Check division by zero=IGNORE 15.25/8.08 [2019-03-28 22:41:15,842 INFO L133 SettingsManager]: * Check if freed pointer was valid=false 15.25/8.08 [2019-03-28 22:41:15,842 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false 15.25/8.08 [2019-03-28 22:41:15,842 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE 15.25/8.08 [2019-03-28 22:41:15,842 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: 15.25/8.08 [2019-03-28 22:41:15,842 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements 15.25/8.08 [2019-03-28 22:41:15,843 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump 15.25/8.08 [2019-03-28 22:41:15,843 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 15.25/8.08 [2019-03-28 22:41:15,843 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: 15.25/8.08 [2019-03-28 22:41:15,843 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles 15.25/8.08 [2019-03-28 22:41:15,843 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL 15.25/8.08 [2019-03-28 22:41:15,843 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 15.25/8.08 [2019-03-28 22:41:15,869 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp 15.25/8.08 [2019-03-28 22:41:15,882 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized 15.25/8.08 [2019-03-28 22:41:15,886 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. 15.25/8.08 [2019-03-28 22:41:15,887 INFO L271 PluginConnector]: Initializing CDTParser... 15.25/8.08 [2019-03-28 22:41:15,888 INFO L276 PluginConnector]: CDTParser initialized 15.25/8.08 [2019-03-28 22:41:15,889 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c 15.25/8.08 [2019-03-28 22:41:15,960 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/36a012bb232041f59d33acaad5f32930/FLAG15fbad5b1 15.25/8.08 [2019-03-28 22:41:16,295 INFO L307 CDTParser]: Found 1 translation units. 15.25/8.08 [2019-03-28 22:41:16,296 INFO L161 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c 15.25/8.08 [2019-03-28 22:41:16,302 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/36a012bb232041f59d33acaad5f32930/FLAG15fbad5b1 15.25/8.08 [2019-03-28 22:41:16,710 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/36a012bb232041f59d33acaad5f32930 15.25/8.08 [2019-03-28 22:41:16,721 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### 15.25/8.08 [2019-03-28 22:41:16,723 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. 15.25/8.08 [2019-03-28 22:41:16,724 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- 15.25/8.08 [2019-03-28 22:41:16,725 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... 15.25/8.08 [2019-03-28 22:41:16,728 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized 15.25/8.08 [2019-03-28 22:41:16,729 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.03 10:41:16" (1/1) ... 15.25/8.08 [2019-03-28 22:41:16,732 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d81c130 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:41:16, skipping insertion in model container 15.25/8.08 [2019-03-28 22:41:16,733 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.03 10:41:16" (1/1) ... 15.25/8.08 [2019-03-28 22:41:16,740 INFO L145 MainTranslator]: Starting translation in SV-COMP mode 15.25/8.08 [2019-03-28 22:41:16,757 INFO L176 MainTranslator]: Built tables and reachable declarations 15.25/8.08 [2019-03-28 22:41:16,911 INFO L206 PostProcessor]: Analyzing one entry point: main 15.25/8.08 [2019-03-28 22:41:16,916 INFO L191 MainTranslator]: Completed pre-run 15.25/8.08 [2019-03-28 22:41:16,932 INFO L206 PostProcessor]: Analyzing one entry point: main 15.25/8.08 [2019-03-28 22:41:16,946 INFO L195 MainTranslator]: Completed translation 15.25/8.08 [2019-03-28 22:41:16,946 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:41:16 WrapperNode 15.25/8.08 [2019-03-28 22:41:16,947 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- 15.25/8.08 [2019-03-28 22:41:16,947 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- 15.25/8.08 [2019-03-28 22:41:16,948 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... 15.25/8.08 [2019-03-28 22:41:16,948 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized 15.25/8.08 [2019-03-28 22:41:17,010 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:41:16" (1/1) ... 15.25/8.08 [2019-03-28 22:41:17,016 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:41:16" (1/1) ... 15.25/8.08 [2019-03-28 22:41:17,035 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- 15.25/8.08 [2019-03-28 22:41:17,035 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- 15.25/8.08 [2019-03-28 22:41:17,035 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... 15.25/8.08 [2019-03-28 22:41:17,035 INFO L276 PluginConnector]: Boogie Preprocessor initialized 15.25/8.08 [2019-03-28 22:41:17,045 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:41:16" (1/1) ... 15.25/8.08 [2019-03-28 22:41:17,045 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:41:16" (1/1) ... 15.25/8.08 [2019-03-28 22:41:17,046 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:41:16" (1/1) ... 15.25/8.08 [2019-03-28 22:41:17,046 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:41:16" (1/1) ... 15.25/8.08 [2019-03-28 22:41:17,048 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:41:16" (1/1) ... 15.25/8.08 [2019-03-28 22:41:17,052 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:41:16" (1/1) ... 15.25/8.08 [2019-03-28 22:41:17,053 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:41:16" (1/1) ... 15.25/8.08 [2019-03-28 22:41:17,054 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- 15.25/8.08 [2019-03-28 22:41:17,055 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- 15.25/8.08 [2019-03-28 22:41:17,055 INFO L271 PluginConnector]: Initializing RCFGBuilder... 15.25/8.08 [2019-03-28 22:41:17,055 INFO L276 PluginConnector]: RCFGBuilder initialized 15.25/8.08 [2019-03-28 22:41:17,056 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:41:16" (1/1) ... 15.25/8.08 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 15.25/8.08 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) 15.25/8.08 Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 15.25/8.08 [2019-03-28 22:41:17,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start 15.25/8.08 [2019-03-28 22:41:17,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start 15.25/8.08 [2019-03-28 22:41:17,238 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) 15.25/8.08 [2019-03-28 22:41:17,238 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. 15.25/8.08 [2019-03-28 22:41:17,240 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 10:41:17 BoogieIcfgContainer 15.25/8.08 [2019-03-28 22:41:17,240 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- 15.25/8.08 [2019-03-28 22:41:17,240 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- 15.25/8.08 [2019-03-28 22:41:17,240 INFO L271 PluginConnector]: Initializing BlockEncodingV2... 15.25/8.08 [2019-03-28 22:41:17,242 INFO L276 PluginConnector]: BlockEncodingV2 initialized 15.25/8.08 [2019-03-28 22:41:17,243 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 10:41:17" (1/1) ... 15.25/8.08 [2019-03-28 22:41:17,258 INFO L313 BlockEncoder]: Initial Icfg 7 locations, 9 edges 15.25/8.08 [2019-03-28 22:41:17,259 INFO L258 BlockEncoder]: Using Remove infeasible edges 15.25/8.08 [2019-03-28 22:41:17,260 INFO L263 BlockEncoder]: Using Maximize final states 15.25/8.08 [2019-03-28 22:41:17,261 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false 15.25/8.08 [2019-03-28 22:41:17,261 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE 15.25/8.08 [2019-03-28 22:41:17,263 INFO L296 BlockEncoder]: Using Remove sink states 15.25/8.08 [2019-03-28 22:41:17,264 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true 15.25/8.08 [2019-03-28 22:41:17,264 INFO L179 BlockEncoder]: Using Rewrite not-equals 15.25/8.08 [2019-03-28 22:41:17,279 INFO L185 BlockEncoder]: Using Use SBE 15.25/8.08 [2019-03-28 22:41:17,292 INFO L200 BlockEncoder]: SBE split 1 edges 15.25/8.08 [2019-03-28 22:41:17,297 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility 15.25/8.08 [2019-03-28 22:41:17,298 INFO L71 MaximizeFinalStates]: 0 new accepting states 15.25/8.08 [2019-03-28 22:41:17,311 INFO L100 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding 15.25/8.08 [2019-03-28 22:41:17,312 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states 15.25/8.08 [2019-03-28 22:41:17,314 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility 15.25/8.08 [2019-03-28 22:41:17,314 INFO L71 MaximizeFinalStates]: 0 new accepting states 15.25/8.08 [2019-03-28 22:41:17,314 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding 15.25/8.08 [2019-03-28 22:41:17,314 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states 15.25/8.08 [2019-03-28 22:41:17,315 INFO L313 BlockEncoder]: Encoded RCFG 3 locations, 5 edges 15.25/8.08 [2019-03-28 22:41:17,315 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 28.03 10:41:17 BasicIcfg 15.25/8.08 [2019-03-28 22:41:17,315 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- 15.25/8.08 [2019-03-28 22:41:17,316 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- 15.25/8.08 [2019-03-28 22:41:17,316 INFO L271 PluginConnector]: Initializing TraceAbstraction... 15.25/8.08 [2019-03-28 22:41:17,320 INFO L276 PluginConnector]: TraceAbstraction initialized 15.25/8.08 [2019-03-28 22:41:17,320 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.03 10:41:16" (1/4) ... 15.25/8.08 [2019-03-28 22:41:17,321 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31cb3a7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.03 10:41:17, skipping insertion in model container 15.25/8.08 [2019-03-28 22:41:17,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:41:16" (2/4) ... 15.25/8.08 [2019-03-28 22:41:17,321 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31cb3a7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.03 10:41:17, skipping insertion in model container 15.25/8.08 [2019-03-28 22:41:17,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 10:41:17" (3/4) ... 15.25/8.08 [2019-03-28 22:41:17,322 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31cb3a7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.03 10:41:17, skipping insertion in model container 15.25/8.08 [2019-03-28 22:41:17,322 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 28.03 10:41:17" (4/4) ... 15.25/8.08 [2019-03-28 22:41:17,323 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 15.25/8.08 [2019-03-28 22:41:17,333 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION 15.25/8.08 [2019-03-28 22:41:17,341 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. 15.25/8.08 [2019-03-28 22:41:17,358 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. 15.25/8.08 [2019-03-28 22:41:17,386 INFO L133 ementStrategyFactory]: Using default assertion order modulation 15.25/8.08 [2019-03-28 22:41:17,387 INFO L382 AbstractCegarLoop]: Interprodecural is true 15.25/8.08 [2019-03-28 22:41:17,387 INFO L383 AbstractCegarLoop]: Hoare is true 15.25/8.08 [2019-03-28 22:41:17,387 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates 15.25/8.08 [2019-03-28 22:41:17,387 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE 15.25/8.08 [2019-03-28 22:41:17,387 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION 15.25/8.08 [2019-03-28 22:41:17,388 INFO L387 AbstractCegarLoop]: Difference is false 15.25/8.08 [2019-03-28 22:41:17,388 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA 15.25/8.08 [2019-03-28 22:41:17,388 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== 15.25/8.08 [2019-03-28 22:41:17,401 INFO L276 IsEmpty]: Start isEmpty. Operand 3 states. 15.25/8.08 [2019-03-28 22:41:17,407 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. 15.25/8.08 [2019-03-28 22:41:17,410 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. 15.25/8.08 [2019-03-28 22:41:17,459 INFO L451 ceAbstractionStarter]: At program point L18-2(lines 17 23) the Hoare annotation is: true 15.25/8.08 [2019-03-28 22:41:17,459 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. 15.25/8.08 [2019-03-28 22:41:17,459 INFO L448 ceAbstractionStarter]: For program point L18(lines 18 22) no Hoare annotation was computed. 15.25/8.08 [2019-03-28 22:41:17,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.03 10:41:17 BasicIcfg 15.25/8.08 [2019-03-28 22:41:17,467 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- 15.25/8.08 [2019-03-28 22:41:17,468 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- 15.25/8.08 [2019-03-28 22:41:17,468 INFO L271 PluginConnector]: Initializing BuchiAutomizer... 15.25/8.08 [2019-03-28 22:41:17,471 INFO L276 PluginConnector]: BuchiAutomizer initialized 15.25/8.08 [2019-03-28 22:41:17,472 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 15.25/8.08 [2019-03-28 22:41:17,472 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.03 10:41:16" (1/5) ... 15.25/8.08 [2019-03-28 22:41:17,473 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3d7baf90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.03 10:41:17, skipping insertion in model container 15.25/8.08 [2019-03-28 22:41:17,473 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 15.25/8.08 [2019-03-28 22:41:17,473 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 10:41:16" (2/5) ... 15.25/8.08 [2019-03-28 22:41:17,473 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3d7baf90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.03 10:41:17, skipping insertion in model container 15.25/8.08 [2019-03-28 22:41:17,474 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 15.25/8.08 [2019-03-28 22:41:17,474 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 10:41:17" (3/5) ... 15.25/8.08 [2019-03-28 22:41:17,474 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3d7baf90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.03 10:41:17, skipping insertion in model container 15.25/8.08 [2019-03-28 22:41:17,474 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 15.25/8.08 [2019-03-28 22:41:17,474 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 28.03 10:41:17" (4/5) ... 15.25/8.08 [2019-03-28 22:41:17,475 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3d7baf90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.03 10:41:17, skipping insertion in model container 15.25/8.08 [2019-03-28 22:41:17,475 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 15.25/8.08 [2019-03-28 22:41:17,475 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.03 10:41:17" (5/5) ... 15.25/8.08 [2019-03-28 22:41:17,476 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 15.25/8.08 [2019-03-28 22:41:17,503 INFO L133 ementStrategyFactory]: Using default assertion order modulation 15.25/8.08 [2019-03-28 22:41:17,503 INFO L374 BuchiCegarLoop]: Interprodecural is true 15.25/8.08 [2019-03-28 22:41:17,503 INFO L375 BuchiCegarLoop]: Hoare is true 15.25/8.08 [2019-03-28 22:41:17,504 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates 15.25/8.08 [2019-03-28 22:41:17,504 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE 15.25/8.08 [2019-03-28 22:41:17,504 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION 15.25/8.08 [2019-03-28 22:41:17,504 INFO L379 BuchiCegarLoop]: Difference is false 15.25/8.08 [2019-03-28 22:41:17,504 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA 15.25/8.08 [2019-03-28 22:41:17,504 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== 15.25/8.08 [2019-03-28 22:41:17,508 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. 15.25/8.08 [2019-03-28 22:41:17,526 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 15.25/8.08 [2019-03-28 22:41:17,526 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 15.25/8.08 [2019-03-28 22:41:17,526 INFO L119 BuchiIsEmpty]: Starting construction of run 15.25/8.08 [2019-03-28 22:41:17,533 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] 15.25/8.08 [2019-03-28 22:41:17,533 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] 15.25/8.08 [2019-03-28 22:41:17,533 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ 15.25/8.08 [2019-03-28 22:41:17,533 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. 15.25/8.08 [2019-03-28 22:41:17,534 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 15.25/8.08 [2019-03-28 22:41:17,534 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 15.25/8.08 [2019-03-28 22:41:17,534 INFO L119 BuchiIsEmpty]: Starting construction of run 15.25/8.08 [2019-03-28 22:41:17,534 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] 15.25/8.08 [2019-03-28 22:41:17,534 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] 15.25/8.08 [2019-03-28 22:41:17,539 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [25] ULTIMATE.startENTRY-->L18-2: Formula: (and (= v_ULTIMATE.start_main_~K~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~K~0=v_ULTIMATE.start_main_~K~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~K~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~x~0] 4#L18-2true 15.25/8.08 [2019-03-28 22:41:17,540 INFO L796 eck$LassoCheckResult]: Loop: 4#L18-2true [35] L18-2-->L18: Formula: (< v_ULTIMATE.start_main_~K~0_7 v_ULTIMATE.start_main_~x~0_7) InVars {ULTIMATE.start_main_~K~0=v_ULTIMATE.start_main_~K~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~K~0=v_ULTIMATE.start_main_~K~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 5#L18true [34] L18-->L18-2: Formula: (and (>= v_ULTIMATE.start_main_~K~0_9 v_ULTIMATE.start_main_~x~0_11) (= v_ULTIMATE.start_main_~x~0_10 (+ v_ULTIMATE.start_main_~x~0_11 1))) InVars {ULTIMATE.start_main_~K~0=v_ULTIMATE.start_main_~K~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} OutVars{ULTIMATE.start_main_~K~0=v_ULTIMATE.start_main_~K~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 4#L18-2true 15.25/8.08 [2019-03-28 22:41:17,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 15.25/8.08 [2019-03-28 22:41:17,546 INFO L82 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 1 times 15.25/8.08 [2019-03-28 22:41:17,548 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 15.25/8.08 [2019-03-28 22:41:17,549 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 15.25/8.08 [2019-03-28 22:41:17,577 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 15.25/8.08 [2019-03-28 22:41:17,577 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 15.25/8.08 [2019-03-28 22:41:17,577 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 15.25/8.08 [2019-03-28 22:41:17,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 15.25/8.08 [2019-03-28 22:41:17,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 15.25/8.08 [2019-03-28 22:41:17,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 15.25/8.08 [2019-03-28 22:41:17,621 INFO L82 PathProgramCache]: Analyzing trace with hash 2080, now seen corresponding path program 1 times 15.25/8.08 [2019-03-28 22:41:17,621 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 15.25/8.08 [2019-03-28 22:41:17,621 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 15.25/8.08 [2019-03-28 22:41:17,623 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 15.25/8.08 [2019-03-28 22:41:17,623 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 15.25/8.08 [2019-03-28 22:41:17,623 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 15.25/8.08 [2019-03-28 22:41:17,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 15.25/8.08 [2019-03-28 22:41:17,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. 15.25/8.08 [2019-03-28 22:41:17,668 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. 15.25/8.08 [2019-03-28 22:41:17,668 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 15.25/8.08 [2019-03-28 22:41:17,673 INFO L811 eck$LassoCheckResult]: loop already infeasible 15.25/8.08 [2019-03-28 22:41:17,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. 15.25/8.08 [2019-03-28 22:41:17,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 15.25/8.08 [2019-03-28 22:41:17,690 INFO L87 Difference]: Start difference. First operand 3 states. Second operand 3 states. 15.25/8.08 [2019-03-28 22:41:17,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. 15.25/8.08 [2019-03-28 22:41:17,715 INFO L93 Difference]: Finished difference Result 4 states and 6 transitions. 15.25/8.08 [2019-03-28 22:41:17,715 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 15.25/8.08 [2019-03-28 22:41:17,719 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 4 states and 6 transitions. 15.25/8.08 [2019-03-28 22:41:17,719 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 15.25/8.08 [2019-03-28 22:41:17,725 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 4 states to 4 states and 6 transitions. 15.25/8.08 [2019-03-28 22:41:17,726 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 15.25/8.08 [2019-03-28 22:41:17,726 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 15.25/8.08 [2019-03-28 22:41:17,727 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 6 transitions. 15.25/8.08 [2019-03-28 22:41:17,727 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. 15.25/8.08 [2019-03-28 22:41:17,727 INFO L706 BuchiCegarLoop]: Abstraction has 4 states and 6 transitions. 15.25/8.08 [2019-03-28 22:41:17,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4 states and 6 transitions. 15.25/8.08 [2019-03-28 22:41:17,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4 to 4. 15.25/8.08 [2019-03-28 22:41:17,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. 15.25/8.08 [2019-03-28 22:41:17,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions. 15.25/8.08 [2019-03-28 22:41:17,757 INFO L729 BuchiCegarLoop]: Abstraction has 4 states and 6 transitions. 15.25/8.08 [2019-03-28 22:41:17,757 INFO L609 BuchiCegarLoop]: Abstraction has 4 states and 6 transitions. 15.25/8.08 [2019-03-28 22:41:17,757 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ 15.25/8.08 [2019-03-28 22:41:17,757 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states and 6 transitions. 15.25/8.08 [2019-03-28 22:41:17,758 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 15.25/8.08 [2019-03-28 22:41:17,758 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 15.25/8.08 [2019-03-28 22:41:17,758 INFO L119 BuchiIsEmpty]: Starting construction of run 15.25/8.08 [2019-03-28 22:41:17,758 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] 15.25/8.08 [2019-03-28 22:41:17,759 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] 15.25/8.08 [2019-03-28 22:41:17,759 INFO L794 eck$LassoCheckResult]: Stem: 16#ULTIMATE.startENTRY [25] ULTIMATE.startENTRY-->L18-2: Formula: (and (= v_ULTIMATE.start_main_~K~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~K~0=v_ULTIMATE.start_main_~K~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~K~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~x~0] 17#L18-2 15.25/8.08 [2019-03-28 22:41:17,759 INFO L796 eck$LassoCheckResult]: Loop: 17#L18-2 [35] L18-2-->L18: Formula: (< v_ULTIMATE.start_main_~K~0_7 v_ULTIMATE.start_main_~x~0_7) InVars {ULTIMATE.start_main_~K~0=v_ULTIMATE.start_main_~K~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~K~0=v_ULTIMATE.start_main_~K~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 18#L18 [29] L18-->L18-2: Formula: (and (< v_ULTIMATE.start_main_~K~0_8 v_ULTIMATE.start_main_~x~0_9) (= v_ULTIMATE.start_main_~x~0_8 (+ v_ULTIMATE.start_main_~x~0_9 (- 1)))) InVars {ULTIMATE.start_main_~K~0=v_ULTIMATE.start_main_~K~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} OutVars{ULTIMATE.start_main_~K~0=v_ULTIMATE.start_main_~K~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 17#L18-2 15.25/8.08 [2019-03-28 22:41:17,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 15.25/8.08 [2019-03-28 22:41:17,760 INFO L82 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 2 times 15.25/8.08 [2019-03-28 22:41:17,760 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 15.25/8.08 [2019-03-28 22:41:17,760 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 15.25/8.08 [2019-03-28 22:41:17,762 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 15.25/8.08 [2019-03-28 22:41:17,762 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 15.25/8.08 [2019-03-28 22:41:17,762 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 15.25/8.08 [2019-03-28 22:41:17,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 15.25/8.08 [2019-03-28 22:41:17,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 15.25/8.08 [2019-03-28 22:41:17,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 15.25/8.08 [2019-03-28 22:41:17,767 INFO L82 PathProgramCache]: Analyzing trace with hash 2075, now seen corresponding path program 1 times 15.25/8.08 [2019-03-28 22:41:17,767 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 15.25/8.08 [2019-03-28 22:41:17,767 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 15.25/8.08 [2019-03-28 22:41:17,768 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 15.25/8.08 [2019-03-28 22:41:17,769 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY 15.25/8.08 [2019-03-28 22:41:17,769 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 15.25/8.08 [2019-03-28 22:41:17,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 15.25/8.08 [2019-03-28 22:41:17,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 15.25/8.08 [2019-03-28 22:41:17,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 15.25/8.08 [2019-03-28 22:41:17,774 INFO L82 PathProgramCache]: Analyzing trace with hash 54930, now seen corresponding path program 1 times 15.25/8.08 [2019-03-28 22:41:17,775 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 15.25/8.08 [2019-03-28 22:41:17,775 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 15.25/8.08 [2019-03-28 22:41:17,776 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 15.25/8.08 [2019-03-28 22:41:17,776 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 15.25/8.08 [2019-03-28 22:41:17,776 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 15.25/8.08 [2019-03-28 22:41:17,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 15.25/8.08 [2019-03-28 22:41:17,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 15.25/8.08 [2019-03-28 22:41:17,813 INFO L216 LassoAnalysis]: Preferences: 15.25/8.08 [2019-03-28 22:41:17,815 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 15.25/8.08 [2019-03-28 22:41:17,815 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 15.25/8.08 [2019-03-28 22:41:17,815 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 15.25/8.08 [2019-03-28 22:41:17,815 INFO L127 ssoRankerPreferences]: Use exernal solver: true 15.25/8.08 [2019-03-28 22:41:17,815 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 15.25/8.08 [2019-03-28 22:41:17,815 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 15.25/8.08 [2019-03-28 22:41:17,816 INFO L130 ssoRankerPreferences]: Path of dumped script: 15.25/8.08 [2019-03-28 22:41:17,816 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop 15.25/8.08 [2019-03-28 22:41:17,816 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 15.25/8.08 [2019-03-28 22:41:17,816 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 15.25/8.08 [2019-03-28 22:41:17,834 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 15.25/8.08 [2019-03-28 22:41:17,843 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 15.25/8.08 [2019-03-28 22:41:17,848 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 15.25/8.08 [2019-03-28 22:41:17,911 INFO L300 LassoAnalysis]: Preprocessing complete. 15.25/8.08 [2019-03-28 22:41:17,912 INFO L412 LassoAnalysis]: Checking for nontermination... 15.25/8.08 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 15.25/8.08 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 15.25/8.08 Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 15.25/8.08 [2019-03-28 22:41:17,919 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 15.25/8.08 [2019-03-28 22:41:17,920 INFO L163 nArgumentSynthesizer]: Using integer mode. 15.25/8.08 [2019-03-28 22:41:17,953 INFO L445 LassoAnalysis]: Proved nontermination for one component. 15.25/8.08 [2019-03-28 22:41:17,953 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: [] 15.25/8.08 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 15.25/8.08 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 15.25/8.08 Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 15.25/8.08 [2019-03-28 22:41:17,959 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 15.25/8.08 [2019-03-28 22:41:17,960 INFO L163 nArgumentSynthesizer]: Using integer mode. 15.25/8.08 [2019-03-28 22:41:17,988 INFO L445 LassoAnalysis]: Proved nontermination for one component. 15.25/8.08 [2019-03-28 22:41:17,988 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: [] 15.25/8.08 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 15.25/8.08 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 15.25/8.08 Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 15.25/8.08 [2019-03-28 22:41:17,993 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 15.25/8.08 [2019-03-28 22:41:17,993 INFO L163 nArgumentSynthesizer]: Using integer mode. 15.25/8.08 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 15.25/8.08 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 15.25/8.08 Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 15.25/8.08 [2019-03-28 22:41:18,025 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true 15.25/8.08 [2019-03-28 22:41:18,025 INFO L163 nArgumentSynthesizer]: Using integer mode. 15.25/8.08 [2019-03-28 22:41:18,314 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. 15.25/8.08 [2019-03-28 22:41:18,316 INFO L216 LassoAnalysis]: Preferences: 15.25/8.08 [2019-03-28 22:41:18,321 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 15.25/8.08 [2019-03-28 22:41:18,321 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 15.25/8.08 [2019-03-28 22:41:18,322 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 15.25/8.08 [2019-03-28 22:41:18,322 INFO L127 ssoRankerPreferences]: Use exernal solver: false 15.25/8.08 [2019-03-28 22:41:18,322 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 15.25/8.08 [2019-03-28 22:41:18,322 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 15.25/8.08 [2019-03-28 22:41:18,322 INFO L130 ssoRankerPreferences]: Path of dumped script: 15.25/8.08 [2019-03-28 22:41:18,322 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop 15.25/8.08 [2019-03-28 22:41:18,322 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 15.25/8.08 [2019-03-28 22:41:18,322 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 15.25/8.08 [2019-03-28 22:41:18,324 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 15.25/8.08 [2019-03-28 22:41:18,328 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 15.25/8.08 [2019-03-28 22:41:18,332 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 15.25/8.08 [2019-03-28 22:41:18,392 INFO L300 LassoAnalysis]: Preprocessing complete. 15.25/8.08 [2019-03-28 22:41:18,398 INFO L497 LassoAnalysis]: Using template 'affine'. 15.25/8.08 [2019-03-28 22:41:18,400 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 15.25/8.08 Termination analysis: LINEAR_WITH_GUESSES 15.25/8.08 Number of strict supporting invariants: 0 15.25/8.08 Number of non-strict supporting invariants: 1 15.25/8.08 Consider only non-deceasing supporting invariants: true 15.25/8.08 Simplify termination arguments: true 15.25/8.08 Simplify supporting invariants: trueOverapproximate stem: false 15.25/8.08 [2019-03-28 22:41:18,402 INFO L339 nArgumentSynthesizer]: Template has degree 0. 15.25/8.08 [2019-03-28 22:41:18,402 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 15.25/8.08 [2019-03-28 22:41:18,402 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 15.25/8.08 [2019-03-28 22:41:18,402 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 15.25/8.08 [2019-03-28 22:41:18,407 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. 15.25/8.08 [2019-03-28 22:41:18,407 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. 15.25/8.08 [2019-03-28 22:41:18,416 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. 15.25/8.08 [2019-03-28 22:41:18,417 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 15.25/8.08 Termination analysis: LINEAR_WITH_GUESSES 15.25/8.08 Number of strict supporting invariants: 0 15.25/8.08 Number of non-strict supporting invariants: 1 15.25/8.08 Consider only non-deceasing supporting invariants: true 15.25/8.08 Simplify termination arguments: true 15.25/8.08 Simplify supporting invariants: trueOverapproximate stem: false 15.25/8.08 [2019-03-28 22:41:18,417 INFO L339 nArgumentSynthesizer]: Template has degree 0. 15.25/8.08 [2019-03-28 22:41:18,417 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 15.25/8.08 [2019-03-28 22:41:18,418 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 15.25/8.08 [2019-03-28 22:41:18,418 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 15.25/8.08 [2019-03-28 22:41:18,420 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. 15.25/8.08 [2019-03-28 22:41:18,421 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. 15.25/8.08 [2019-03-28 22:41:18,429 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. 15.25/8.08 [2019-03-28 22:41:18,429 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 15.25/8.08 Termination analysis: LINEAR_WITH_GUESSES 15.25/8.08 Number of strict supporting invariants: 0 15.25/8.08 Number of non-strict supporting invariants: 1 15.25/8.08 Consider only non-deceasing supporting invariants: true 15.25/8.08 Simplify termination arguments: true 15.25/8.08 Simplify supporting invariants: trueOverapproximate stem: false 15.25/8.08 [2019-03-28 22:41:18,430 INFO L339 nArgumentSynthesizer]: Template has degree 0. 15.25/8.08 [2019-03-28 22:41:18,430 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 15.25/8.08 [2019-03-28 22:41:18,431 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 15.25/8.08 [2019-03-28 22:41:18,431 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 15.25/8.08 [2019-03-28 22:41:18,431 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 15.25/8.08 [2019-03-28 22:41:18,432 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 15.25/8.08 [2019-03-28 22:41:18,432 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 15.25/8.08 [2019-03-28 22:41:18,439 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. 15.25/8.08 [2019-03-28 22:41:18,447 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. 15.25/8.08 [2019-03-28 22:41:18,447 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. 15.25/8.08 [2019-03-28 22:41:18,450 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... 15.25/8.08 [2019-03-28 22:41:18,450 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. 15.25/8.08 [2019-03-28 22:41:18,450 INFO L518 LassoAnalysis]: Proved termination. 15.25/8.08 [2019-03-28 22:41:18,451 INFO L520 LassoAnalysis]: Termination argument consisting of: 15.25/8.08 Ranking function f(ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~K~0) = 1*ULTIMATE.start_main_~x~0 - 1*ULTIMATE.start_main_~K~0 15.25/8.08 Supporting invariants [] 15.25/8.08 [2019-03-28 22:41:18,452 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed 15.25/8.08 [2019-03-28 22:41:18,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 15.25/8.08 [2019-03-28 22:41:18,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 15.25/8.08 [2019-03-28 22:41:18,514 INFO L256 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core 15.25/8.08 [2019-03-28 22:41:18,515 INFO L279 TraceCheckSpWp]: Computing forward predicates... 15.25/8.08 [2019-03-28 22:41:18,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 15.25/8.08 [2019-03-28 22:41:18,527 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core 15.25/8.08 [2019-03-28 22:41:18,528 INFO L279 TraceCheckSpWp]: Computing forward predicates... 15.25/8.08 [2019-03-28 22:41:18,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. 15.25/8.08 [2019-03-28 22:41:18,562 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization 15.25/8.08 [2019-03-28 22:41:18,565 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 2 loop predicates 15.25/8.08 [2019-03-28 22:41:18,566 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 4 states and 6 transitions. cyclomatic complexity: 3 Second operand 3 states. 15.25/8.08 [2019-03-28 22:41:18,606 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 4 states and 6 transitions. cyclomatic complexity: 3. Second operand 3 states. Result 10 states and 17 transitions. Complement of second has 6 states. 15.25/8.08 [2019-03-28 22:41:18,607 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states 15.25/8.08 [2019-03-28 22:41:18,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. 15.25/8.08 [2019-03-28 22:41:18,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. 15.25/8.08 [2019-03-28 22:41:18,610 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 1 letters. Loop has 2 letters. 15.25/8.08 [2019-03-28 22:41:18,611 INFO L116 BuchiAccepts]: Finished buchiAccepts. 15.25/8.08 [2019-03-28 22:41:18,612 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 3 letters. Loop has 2 letters. 15.25/8.08 [2019-03-28 22:41:18,612 INFO L116 BuchiAccepts]: Finished buchiAccepts. 15.25/8.08 [2019-03-28 22:41:18,612 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 1 letters. Loop has 4 letters. 15.25/8.08 [2019-03-28 22:41:18,612 INFO L116 BuchiAccepts]: Finished buchiAccepts. 15.25/8.08 [2019-03-28 22:41:18,617 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 17 transitions. 15.25/8.08 [2019-03-28 22:41:18,618 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 15.25/8.08 [2019-03-28 22:41:18,619 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 9 states and 15 transitions. 15.25/8.08 [2019-03-28 22:41:18,619 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 15.25/8.08 [2019-03-28 22:41:18,619 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 15.25/8.08 [2019-03-28 22:41:18,619 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 15 transitions. 15.25/8.08 [2019-03-28 22:41:18,619 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. 15.25/8.08 [2019-03-28 22:41:18,619 INFO L706 BuchiCegarLoop]: Abstraction has 9 states and 15 transitions. 15.25/8.08 [2019-03-28 22:41:18,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 15 transitions. 15.25/8.08 [2019-03-28 22:41:18,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. 15.25/8.08 [2019-03-28 22:41:18,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. 15.25/8.08 [2019-03-28 22:41:18,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 14 transitions. 15.25/8.08 [2019-03-28 22:41:18,621 INFO L729 BuchiCegarLoop]: Abstraction has 8 states and 14 transitions. 15.25/8.08 [2019-03-28 22:41:18,622 INFO L609 BuchiCegarLoop]: Abstraction has 8 states and 14 transitions. 15.25/8.08 [2019-03-28 22:41:18,622 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ 15.25/8.08 [2019-03-28 22:41:18,622 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 14 transitions. 15.25/8.08 [2019-03-28 22:41:18,622 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 15.25/8.08 [2019-03-28 22:41:18,623 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 15.25/8.08 [2019-03-28 22:41:18,623 INFO L119 BuchiIsEmpty]: Starting construction of run 15.25/8.08 [2019-03-28 22:41:18,623 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] 15.25/8.08 [2019-03-28 22:41:18,623 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] 15.25/8.08 [2019-03-28 22:41:18,624 INFO L794 eck$LassoCheckResult]: Stem: 69#ULTIMATE.startENTRY [25] ULTIMATE.startENTRY-->L18-2: Formula: (and (= v_ULTIMATE.start_main_~K~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~K~0=v_ULTIMATE.start_main_~K~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~K~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~x~0] 70#L18-2 [36] L18-2-->L18: Formula: (> v_ULTIMATE.start_main_~K~0_7 v_ULTIMATE.start_main_~x~0_7) InVars {ULTIMATE.start_main_~K~0=v_ULTIMATE.start_main_~K~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~K~0=v_ULTIMATE.start_main_~K~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 68#L18 [34] L18-->L18-2: Formula: (and (>= v_ULTIMATE.start_main_~K~0_9 v_ULTIMATE.start_main_~x~0_11) (= v_ULTIMATE.start_main_~x~0_10 (+ v_ULTIMATE.start_main_~x~0_11 1))) InVars {ULTIMATE.start_main_~K~0=v_ULTIMATE.start_main_~K~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} OutVars{ULTIMATE.start_main_~K~0=v_ULTIMATE.start_main_~K~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 63#L18-2 15.25/8.08 [2019-03-28 22:41:18,624 INFO L796 eck$LassoCheckResult]: Loop: 63#L18-2 [35] L18-2-->L18: Formula: (< v_ULTIMATE.start_main_~K~0_7 v_ULTIMATE.start_main_~x~0_7) InVars {ULTIMATE.start_main_~K~0=v_ULTIMATE.start_main_~K~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~K~0=v_ULTIMATE.start_main_~K~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 64#L18 [29] L18-->L18-2: Formula: (and (< v_ULTIMATE.start_main_~K~0_8 v_ULTIMATE.start_main_~x~0_9) (= v_ULTIMATE.start_main_~x~0_8 (+ v_ULTIMATE.start_main_~x~0_9 (- 1)))) InVars {ULTIMATE.start_main_~K~0=v_ULTIMATE.start_main_~K~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} OutVars{ULTIMATE.start_main_~K~0=v_ULTIMATE.start_main_~K~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 63#L18-2 15.25/8.08 [2019-03-28 22:41:18,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 15.25/8.08 [2019-03-28 22:41:18,624 INFO L82 PathProgramCache]: Analyzing trace with hash 54966, now seen corresponding path program 1 times 15.25/8.08 [2019-03-28 22:41:18,624 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 15.25/8.08 [2019-03-28 22:41:18,625 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 15.25/8.08 [2019-03-28 22:41:18,626 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 15.25/8.08 [2019-03-28 22:41:18,626 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 15.25/8.08 [2019-03-28 22:41:18,627 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 15.25/8.08 [2019-03-28 22:41:18,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 15.25/8.08 [2019-03-28 22:41:18,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 15.25/8.08 [2019-03-28 22:41:18,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 15.25/8.08 [2019-03-28 22:41:18,634 INFO L82 PathProgramCache]: Analyzing trace with hash 2075, now seen corresponding path program 2 times 15.25/8.08 [2019-03-28 22:41:18,634 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 15.25/8.08 [2019-03-28 22:41:18,635 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 15.25/8.08 [2019-03-28 22:41:18,636 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 15.25/8.08 [2019-03-28 22:41:18,636 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 15.25/8.08 [2019-03-28 22:41:18,636 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 15.25/8.08 [2019-03-28 22:41:18,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 15.25/8.08 [2019-03-28 22:41:18,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 15.25/8.08 [2019-03-28 22:41:18,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 15.25/8.08 [2019-03-28 22:41:18,642 INFO L82 PathProgramCache]: Analyzing trace with hash 52823440, now seen corresponding path program 1 times 15.25/8.08 [2019-03-28 22:41:18,642 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 15.25/8.08 [2019-03-28 22:41:18,642 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 15.25/8.08 [2019-03-28 22:41:18,643 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 15.25/8.08 [2019-03-28 22:41:18,643 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY 15.25/8.08 [2019-03-28 22:41:18,644 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 15.25/8.08 [2019-03-28 22:41:18,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 15.25/8.08 [2019-03-28 22:41:18,667 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. 15.25/8.08 [2019-03-28 22:41:18,668 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. 15.25/8.08 [2019-03-28 22:41:18,668 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 15.25/8.08 [2019-03-28 22:41:18,680 INFO L216 LassoAnalysis]: Preferences: 15.25/8.08 [2019-03-28 22:41:18,680 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 15.25/8.08 [2019-03-28 22:41:18,681 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 15.25/8.08 [2019-03-28 22:41:18,681 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 15.25/8.08 [2019-03-28 22:41:18,681 INFO L127 ssoRankerPreferences]: Use exernal solver: true 15.25/8.08 [2019-03-28 22:41:18,681 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 15.25/8.08 [2019-03-28 22:41:18,681 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 15.25/8.08 [2019-03-28 22:41:18,681 INFO L130 ssoRankerPreferences]: Path of dumped script: 15.25/8.08 [2019-03-28 22:41:18,681 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop 15.25/8.08 [2019-03-28 22:41:18,681 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 15.25/8.08 [2019-03-28 22:41:18,682 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 15.25/8.08 [2019-03-28 22:41:18,683 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 15.25/8.08 [2019-03-28 22:41:18,687 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 15.25/8.08 [2019-03-28 22:41:18,698 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 15.25/8.08 [2019-03-28 22:41:18,740 INFO L300 LassoAnalysis]: Preprocessing complete. 15.25/8.08 [2019-03-28 22:41:18,740 INFO L412 LassoAnalysis]: Checking for nontermination... 15.25/8.08 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 15.25/8.08 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 15.25/8.08 Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 15.25/8.08 [2019-03-28 22:41:18,744 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 15.25/8.08 [2019-03-28 22:41:18,744 INFO L163 nArgumentSynthesizer]: Using integer mode. 15.25/8.08 [2019-03-28 22:41:18,773 INFO L445 LassoAnalysis]: Proved nontermination for one component. 15.25/8.08 [2019-03-28 22:41:18,773 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: [] 15.25/8.08 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 15.25/8.08 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 15.25/8.08 Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 15.25/8.08 [2019-03-28 22:41:18,778 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 15.25/8.08 [2019-03-28 22:41:18,778 INFO L163 nArgumentSynthesizer]: Using integer mode. 15.25/8.08 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 15.25/8.08 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 15.25/8.08 Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 15.25/8.08 [2019-03-28 22:41:18,808 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true 15.25/8.08 [2019-03-28 22:41:18,808 INFO L163 nArgumentSynthesizer]: Using integer mode. 15.25/8.08 [2019-03-28 22:41:19,080 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. 15.25/8.08 [2019-03-28 22:41:19,082 INFO L216 LassoAnalysis]: Preferences: 15.25/8.08 [2019-03-28 22:41:19,082 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 15.25/8.08 [2019-03-28 22:41:19,082 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 15.25/8.08 [2019-03-28 22:41:19,083 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 15.25/8.08 [2019-03-28 22:41:19,083 INFO L127 ssoRankerPreferences]: Use exernal solver: false 15.25/8.08 [2019-03-28 22:41:19,083 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 15.25/8.08 [2019-03-28 22:41:19,083 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 15.25/8.08 [2019-03-28 22:41:19,083 INFO L130 ssoRankerPreferences]: Path of dumped script: 15.25/8.08 [2019-03-28 22:41:19,083 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop 15.25/8.08 [2019-03-28 22:41:19,083 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 15.25/8.08 [2019-03-28 22:41:19,084 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 15.25/8.08 [2019-03-28 22:41:19,085 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 15.25/8.08 [2019-03-28 22:41:19,092 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 15.25/8.08 [2019-03-28 22:41:19,095 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 15.25/8.08 [2019-03-28 22:41:19,136 INFO L300 LassoAnalysis]: Preprocessing complete. 15.25/8.08 [2019-03-28 22:41:19,136 INFO L497 LassoAnalysis]: Using template 'affine'. 15.25/8.08 [2019-03-28 22:41:19,137 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 15.25/8.08 Termination analysis: LINEAR_WITH_GUESSES 15.25/8.08 Number of strict supporting invariants: 0 15.25/8.08 Number of non-strict supporting invariants: 1 15.25/8.08 Consider only non-deceasing supporting invariants: true 15.25/8.08 Simplify termination arguments: true 15.25/8.08 Simplify supporting invariants: trueOverapproximate stem: false 15.25/8.08 [2019-03-28 22:41:19,138 INFO L339 nArgumentSynthesizer]: Template has degree 0. 15.25/8.08 [2019-03-28 22:41:19,138 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 15.25/8.08 [2019-03-28 22:41:19,138 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 15.25/8.08 [2019-03-28 22:41:19,138 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 15.25/8.08 [2019-03-28 22:41:19,138 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 15.25/8.08 [2019-03-28 22:41:19,139 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 15.25/8.08 [2019-03-28 22:41:19,139 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 15.25/8.08 [2019-03-28 22:41:19,144 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. 15.25/8.08 [2019-03-28 22:41:19,148 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. 15.25/8.08 [2019-03-28 22:41:19,148 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. 15.25/8.08 [2019-03-28 22:41:19,148 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... 15.25/8.08 [2019-03-28 22:41:19,149 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. 15.25/8.08 [2019-03-28 22:41:19,149 INFO L518 LassoAnalysis]: Proved termination. 15.25/8.08 [2019-03-28 22:41:19,149 INFO L520 LassoAnalysis]: Termination argument consisting of: 15.25/8.08 Ranking function f(ULTIMATE.start_main_~K~0, ULTIMATE.start_main_~x~0) = -1*ULTIMATE.start_main_~K~0 + 1*ULTIMATE.start_main_~x~0 15.25/8.08 Supporting invariants [] 15.25/8.08 [2019-03-28 22:41:19,149 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed 15.25/8.08 [2019-03-28 22:41:19,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 15.25/8.08 [2019-03-28 22:41:19,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 15.25/8.08 [2019-03-28 22:41:19,177 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core 15.25/8.08 [2019-03-28 22:41:19,177 INFO L279 TraceCheckSpWp]: Computing forward predicates... 15.25/8.08 [2019-03-28 22:41:19,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 15.25/8.08 [2019-03-28 22:41:19,182 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core 15.25/8.08 [2019-03-28 22:41:19,183 INFO L279 TraceCheckSpWp]: Computing forward predicates... 15.25/8.08 [2019-03-28 22:41:19,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. 15.25/8.08 [2019-03-28 22:41:19,210 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization 15.25/8.08 [2019-03-28 22:41:19,211 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 2 loop predicates 15.25/8.08 [2019-03-28 22:41:19,211 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 8 states and 14 transitions. cyclomatic complexity: 8 Second operand 3 states. 15.25/8.08 [2019-03-28 22:41:19,236 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 8 states and 14 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 11 states and 20 transitions. Complement of second has 6 states. 15.25/8.08 [2019-03-28 22:41:19,236 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states 15.25/8.08 [2019-03-28 22:41:19,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. 15.25/8.08 [2019-03-28 22:41:19,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. 15.25/8.08 [2019-03-28 22:41:19,237 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 3 letters. Loop has 2 letters. 15.25/8.08 [2019-03-28 22:41:19,237 INFO L116 BuchiAccepts]: Finished buchiAccepts. 15.25/8.08 [2019-03-28 22:41:19,238 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 5 letters. Loop has 2 letters. 15.25/8.08 [2019-03-28 22:41:19,238 INFO L116 BuchiAccepts]: Finished buchiAccepts. 15.25/8.08 [2019-03-28 22:41:19,238 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 3 letters. Loop has 4 letters. 15.25/8.08 [2019-03-28 22:41:19,238 INFO L116 BuchiAccepts]: Finished buchiAccepts. 15.25/8.08 [2019-03-28 22:41:19,239 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 20 transitions. 15.25/8.08 [2019-03-28 22:41:19,241 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 15.25/8.08 [2019-03-28 22:41:19,242 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 10 states and 18 transitions. 15.25/8.08 [2019-03-28 22:41:19,242 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 15.25/8.08 [2019-03-28 22:41:19,242 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 15.25/8.08 [2019-03-28 22:41:19,242 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 18 transitions. 15.25/8.08 [2019-03-28 22:41:19,242 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. 15.25/8.08 [2019-03-28 22:41:19,242 INFO L706 BuchiCegarLoop]: Abstraction has 10 states and 18 transitions. 15.25/8.08 [2019-03-28 22:41:19,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 18 transitions. 15.25/8.08 [2019-03-28 22:41:19,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 5. 15.25/8.08 [2019-03-28 22:41:19,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. 15.25/8.08 [2019-03-28 22:41:19,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 9 transitions. 15.25/8.08 [2019-03-28 22:41:19,244 INFO L729 BuchiCegarLoop]: Abstraction has 5 states and 9 transitions. 15.25/8.08 [2019-03-28 22:41:19,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. 15.25/8.08 [2019-03-28 22:41:19,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 15.25/8.08 [2019-03-28 22:41:19,244 INFO L87 Difference]: Start difference. First operand 5 states and 9 transitions. Second operand 4 states. 15.25/8.08 [2019-03-28 22:41:19,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. 15.25/8.08 [2019-03-28 22:41:19,271 INFO L93 Difference]: Finished difference Result 7 states and 11 transitions. 15.25/8.08 [2019-03-28 22:41:19,271 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 15.25/8.08 [2019-03-28 22:41:19,272 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7 states and 11 transitions. 15.25/8.08 [2019-03-28 22:41:19,273 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 15.25/8.08 [2019-03-28 22:41:19,274 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7 states to 6 states and 8 transitions. 15.25/8.08 [2019-03-28 22:41:19,274 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 15.25/8.08 [2019-03-28 22:41:19,274 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 15.25/8.08 [2019-03-28 22:41:19,274 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 8 transitions. 15.25/8.08 [2019-03-28 22:41:19,274 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. 15.25/8.08 [2019-03-28 22:41:19,274 INFO L706 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. 15.25/8.08 [2019-03-28 22:41:19,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 8 transitions. 15.25/8.08 [2019-03-28 22:41:19,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. 15.25/8.08 [2019-03-28 22:41:19,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. 15.25/8.08 [2019-03-28 22:41:19,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 8 transitions. 15.25/8.08 [2019-03-28 22:41:19,276 INFO L729 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. 15.25/8.08 [2019-03-28 22:41:19,276 INFO L609 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. 15.25/8.08 [2019-03-28 22:41:19,276 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ 15.25/8.08 [2019-03-28 22:41:19,276 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 8 transitions. 15.25/8.08 [2019-03-28 22:41:19,277 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 15.25/8.08 [2019-03-28 22:41:19,277 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 15.25/8.08 [2019-03-28 22:41:19,277 INFO L119 BuchiIsEmpty]: Starting construction of run 15.25/8.08 [2019-03-28 22:41:19,278 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] 15.25/8.08 [2019-03-28 22:41:19,278 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] 15.25/8.08 [2019-03-28 22:41:19,278 INFO L794 eck$LassoCheckResult]: Stem: 135#ULTIMATE.startENTRY [25] ULTIMATE.startENTRY-->L18-2: Formula: (and (= v_ULTIMATE.start_main_~K~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~K~0=v_ULTIMATE.start_main_~K~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~K~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~x~0] 136#L18-2 [36] L18-2-->L18: Formula: (> v_ULTIMATE.start_main_~K~0_7 v_ULTIMATE.start_main_~x~0_7) InVars {ULTIMATE.start_main_~K~0=v_ULTIMATE.start_main_~K~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~K~0=v_ULTIMATE.start_main_~K~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 138#L18 15.25/8.08 [2019-03-28 22:41:19,278 INFO L796 eck$LassoCheckResult]: Loop: 138#L18 [34] L18-->L18-2: Formula: (and (>= v_ULTIMATE.start_main_~K~0_9 v_ULTIMATE.start_main_~x~0_11) (= v_ULTIMATE.start_main_~x~0_10 (+ v_ULTIMATE.start_main_~x~0_11 1))) InVars {ULTIMATE.start_main_~K~0=v_ULTIMATE.start_main_~K~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} OutVars{ULTIMATE.start_main_~K~0=v_ULTIMATE.start_main_~K~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 137#L18-2 [36] L18-2-->L18: Formula: (> v_ULTIMATE.start_main_~K~0_7 v_ULTIMATE.start_main_~x~0_7) InVars {ULTIMATE.start_main_~K~0=v_ULTIMATE.start_main_~K~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~K~0=v_ULTIMATE.start_main_~K~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 138#L18 15.25/8.08 [2019-03-28 22:41:19,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 15.25/8.08 [2019-03-28 22:41:19,278 INFO L82 PathProgramCache]: Analyzing trace with hash 1772, now seen corresponding path program 1 times 15.25/8.08 [2019-03-28 22:41:19,279 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 15.25/8.08 [2019-03-28 22:41:19,279 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 15.25/8.08 [2019-03-28 22:41:19,280 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 15.25/8.08 [2019-03-28 22:41:19,280 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 15.25/8.08 [2019-03-28 22:41:19,281 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 15.25/8.08 [2019-03-28 22:41:19,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 15.25/8.08 [2019-03-28 22:41:19,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 15.25/8.08 [2019-03-28 22:41:19,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 15.25/8.08 [2019-03-28 22:41:19,286 INFO L82 PathProgramCache]: Analyzing trace with hash 2051, now seen corresponding path program 1 times 15.25/8.08 [2019-03-28 22:41:19,286 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 15.25/8.08 [2019-03-28 22:41:19,286 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 15.25/8.08 [2019-03-28 22:41:19,287 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 15.25/8.08 [2019-03-28 22:41:19,287 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 15.25/8.08 [2019-03-28 22:41:19,288 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 15.25/8.08 [2019-03-28 22:41:19,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 15.25/8.08 [2019-03-28 22:41:19,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 15.25/8.08 [2019-03-28 22:41:19,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 15.25/8.08 [2019-03-28 22:41:19,293 INFO L82 PathProgramCache]: Analyzing trace with hash 1703982, now seen corresponding path program 2 times 15.25/8.08 [2019-03-28 22:41:19,293 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 15.25/8.08 [2019-03-28 22:41:19,294 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 15.25/8.08 [2019-03-28 22:41:19,295 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 15.25/8.08 [2019-03-28 22:41:19,295 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 15.25/8.08 [2019-03-28 22:41:19,295 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 15.25/8.08 [2019-03-28 22:41:19,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 15.25/8.08 [2019-03-28 22:41:19,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 15.25/8.08 [2019-03-28 22:41:19,323 INFO L216 LassoAnalysis]: Preferences: 15.25/8.08 [2019-03-28 22:41:19,323 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 15.25/8.08 [2019-03-28 22:41:19,323 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 15.25/8.08 [2019-03-28 22:41:19,323 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 15.25/8.08 [2019-03-28 22:41:19,323 INFO L127 ssoRankerPreferences]: Use exernal solver: true 15.25/8.08 [2019-03-28 22:41:19,324 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 15.25/8.08 [2019-03-28 22:41:19,324 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 15.25/8.08 [2019-03-28 22:41:19,324 INFO L130 ssoRankerPreferences]: Path of dumped script: 15.25/8.08 [2019-03-28 22:41:19,324 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop 15.25/8.08 [2019-03-28 22:41:19,325 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 15.25/8.08 [2019-03-28 22:41:19,325 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 15.25/8.08 [2019-03-28 22:41:19,326 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 15.25/8.08 [2019-03-28 22:41:19,329 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 15.25/8.08 [2019-03-28 22:41:19,336 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 15.25/8.08 [2019-03-28 22:41:19,375 INFO L300 LassoAnalysis]: Preprocessing complete. 15.25/8.08 [2019-03-28 22:41:19,376 INFO L412 LassoAnalysis]: Checking for nontermination... 15.25/8.08 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 15.25/8.08 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 15.25/8.08 Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 15.25/8.08 [2019-03-28 22:41:19,380 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 15.25/8.08 [2019-03-28 22:41:19,381 INFO L163 nArgumentSynthesizer]: Using integer mode. 15.25/8.08 [2019-03-28 22:41:19,408 INFO L445 LassoAnalysis]: Proved nontermination for one component. 15.25/8.08 [2019-03-28 22:41:19,408 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: [] 15.25/8.08 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 15.25/8.08 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 15.25/8.08 Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 15.25/8.08 [2019-03-28 22:41:19,416 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 15.25/8.08 [2019-03-28 22:41:19,416 INFO L163 nArgumentSynthesizer]: Using integer mode. 15.25/8.08 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 15.25/8.08 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 15.25/8.08 Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 15.25/8.08 [2019-03-28 22:41:19,448 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true 15.25/8.08 [2019-03-28 22:41:19,448 INFO L163 nArgumentSynthesizer]: Using integer mode. 15.25/8.08 [2019-03-28 22:41:19,909 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. 15.25/8.08 [2019-03-28 22:41:19,912 INFO L216 LassoAnalysis]: Preferences: 15.25/8.08 [2019-03-28 22:41:19,912 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 15.25/8.08 [2019-03-28 22:41:19,912 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 15.25/8.08 [2019-03-28 22:41:19,912 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 15.25/8.08 [2019-03-28 22:41:19,913 INFO L127 ssoRankerPreferences]: Use exernal solver: false 15.25/8.08 [2019-03-28 22:41:19,913 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 15.25/8.08 [2019-03-28 22:41:19,913 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 15.25/8.08 [2019-03-28 22:41:19,913 INFO L130 ssoRankerPreferences]: Path of dumped script: 15.25/8.08 [2019-03-28 22:41:19,913 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop 15.25/8.08 [2019-03-28 22:41:19,913 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 15.25/8.08 [2019-03-28 22:41:19,913 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 15.25/8.08 [2019-03-28 22:41:19,915 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 15.25/8.08 [2019-03-28 22:41:19,919 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 15.25/8.08 [2019-03-28 22:41:19,924 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 15.25/8.08 [2019-03-28 22:41:19,958 INFO L300 LassoAnalysis]: Preprocessing complete. 15.25/8.08 [2019-03-28 22:41:19,958 INFO L497 LassoAnalysis]: Using template 'affine'. 15.25/8.08 [2019-03-28 22:41:19,958 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 15.25/8.08 Termination analysis: LINEAR_WITH_GUESSES 15.25/8.08 Number of strict supporting invariants: 0 15.25/8.08 Number of non-strict supporting invariants: 1 15.25/8.08 Consider only non-deceasing supporting invariants: true 15.25/8.08 Simplify termination arguments: true 15.25/8.08 Simplify supporting invariants: trueOverapproximate stem: false 15.25/8.08 [2019-03-28 22:41:19,959 INFO L339 nArgumentSynthesizer]: Template has degree 0. 15.25/8.08 [2019-03-28 22:41:19,959 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 15.25/8.08 [2019-03-28 22:41:19,960 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 15.25/8.08 [2019-03-28 22:41:19,960 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 15.25/8.08 [2019-03-28 22:41:19,961 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. 15.25/8.08 [2019-03-28 22:41:19,962 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. 15.25/8.08 [2019-03-28 22:41:19,967 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. 15.25/8.08 [2019-03-28 22:41:19,968 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 15.25/8.08 Termination analysis: LINEAR_WITH_GUESSES 15.25/8.08 Number of strict supporting invariants: 0 15.25/8.08 Number of non-strict supporting invariants: 1 15.25/8.08 Consider only non-deceasing supporting invariants: true 15.25/8.08 Simplify termination arguments: true 15.25/8.08 Simplify supporting invariants: trueOverapproximate stem: false 15.25/8.08 [2019-03-28 22:41:19,968 INFO L339 nArgumentSynthesizer]: Template has degree 0. 15.25/8.08 [2019-03-28 22:41:19,968 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 15.25/8.08 [2019-03-28 22:41:19,969 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 15.25/8.08 [2019-03-28 22:41:19,969 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 15.25/8.08 [2019-03-28 22:41:19,969 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 15.25/8.08 [2019-03-28 22:41:19,969 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 15.25/8.08 [2019-03-28 22:41:19,970 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 15.25/8.08 [2019-03-28 22:41:19,974 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. 15.25/8.08 [2019-03-28 22:41:19,978 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. 15.25/8.08 [2019-03-28 22:41:19,979 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. 15.25/8.08 [2019-03-28 22:41:19,979 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... 15.25/8.08 [2019-03-28 22:41:19,979 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. 15.25/8.08 [2019-03-28 22:41:19,980 INFO L518 LassoAnalysis]: Proved termination. 15.25/8.08 [2019-03-28 22:41:19,980 INFO L520 LassoAnalysis]: Termination argument consisting of: 15.25/8.08 Ranking function f(ULTIMATE.start_main_~K~0, ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~K~0 - 1*ULTIMATE.start_main_~x~0 15.25/8.08 Supporting invariants [] 15.25/8.08 [2019-03-28 22:41:19,980 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed 15.25/8.08 [2019-03-28 22:41:19,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 15.25/8.08 [2019-03-28 22:41:19,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 15.25/8.08 [2019-03-28 22:41:20,000 INFO L256 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core 15.25/8.08 [2019-03-28 22:41:20,000 INFO L279 TraceCheckSpWp]: Computing forward predicates... 15.25/8.08 [2019-03-28 22:41:20,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 15.25/8.08 [2019-03-28 22:41:20,004 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core 15.25/8.08 [2019-03-28 22:41:20,004 INFO L279 TraceCheckSpWp]: Computing forward predicates... 15.25/8.08 [2019-03-28 22:41:20,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. 15.25/8.08 [2019-03-28 22:41:20,022 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization 15.25/8.08 [2019-03-28 22:41:20,022 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 2 loop predicates 15.25/8.08 [2019-03-28 22:41:20,022 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 6 states and 8 transitions. cyclomatic complexity: 4 Second operand 3 states. 15.25/8.08 [2019-03-28 22:41:20,037 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 6 states and 8 transitions. cyclomatic complexity: 4. Second operand 3 states. Result 8 states and 10 transitions. Complement of second has 4 states. 15.25/8.08 [2019-03-28 22:41:20,037 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 15.25/8.08 [2019-03-28 22:41:20,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. 15.25/8.08 [2019-03-28 22:41:20,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. 15.25/8.08 [2019-03-28 22:41:20,038 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 2 letters. Loop has 2 letters. 15.25/8.08 [2019-03-28 22:41:20,038 INFO L116 BuchiAccepts]: Finished buchiAccepts. 15.25/8.08 [2019-03-28 22:41:20,038 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 4 letters. Loop has 2 letters. 15.25/8.08 [2019-03-28 22:41:20,039 INFO L116 BuchiAccepts]: Finished buchiAccepts. 15.25/8.08 [2019-03-28 22:41:20,039 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 2 letters. Loop has 4 letters. 15.25/8.08 [2019-03-28 22:41:20,040 INFO L116 BuchiAccepts]: Finished buchiAccepts. 15.25/8.08 [2019-03-28 22:41:20,041 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 10 transitions. 15.25/8.08 [2019-03-28 22:41:20,042 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 15.25/8.08 [2019-03-28 22:41:20,042 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 0 states and 0 transitions. 15.25/8.08 [2019-03-28 22:41:20,042 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 15.25/8.08 [2019-03-28 22:41:20,042 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 15.25/8.08 [2019-03-28 22:41:20,042 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. 15.25/8.08 [2019-03-28 22:41:20,042 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. 15.25/8.08 [2019-03-28 22:41:20,042 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. 15.25/8.08 [2019-03-28 22:41:20,042 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. 15.25/8.08 [2019-03-28 22:41:20,043 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. 15.25/8.08 [2019-03-28 22:41:20,043 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ 15.25/8.08 [2019-03-28 22:41:20,043 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. 15.25/8.08 [2019-03-28 22:41:20,043 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 15.25/8.08 [2019-03-28 22:41:20,043 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true 15.25/8.08 [2019-03-28 22:41:20,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.03 10:41:20 BasicIcfg 15.25/8.08 [2019-03-28 22:41:20,049 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- 15.25/8.08 [2019-03-28 22:41:20,050 INFO L168 Benchmark]: Toolchain (without parser) took 3327.93 ms. Allocated memory was 649.6 MB in the beginning and 653.3 MB in the end (delta: 3.7 MB). Free memory was 558.5 MB in the beginning and 399.5 MB in the end (delta: 158.9 MB). Peak memory consumption was 162.6 MB. Max. memory is 50.3 GB. 15.25/8.08 [2019-03-28 22:41:20,051 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. 15.25/8.08 [2019-03-28 22:41:20,052 INFO L168 Benchmark]: CACSL2BoogieTranslator took 222.59 ms. Allocated memory is still 649.6 MB. Free memory was 558.5 MB in the beginning and 549.0 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 50.3 GB. 15.25/8.08 [2019-03-28 22:41:20,052 INFO L168 Benchmark]: Boogie Procedure Inliner took 87.43 ms. Allocated memory was 649.6 MB in the beginning and 653.3 MB in the end (delta: 3.7 MB). Free memory was 549.0 MB in the beginning and 619.8 MB in the end (delta: -70.7 MB). Peak memory consumption was 20.4 MB. Max. memory is 50.3 GB. 15.25/8.08 [2019-03-28 22:41:20,053 INFO L168 Benchmark]: Boogie Preprocessor took 19.13 ms. Allocated memory is still 653.3 MB. Free memory was 619.8 MB in the beginning and 616.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 50.3 GB. 15.25/8.08 [2019-03-28 22:41:20,054 INFO L168 Benchmark]: RCFGBuilder took 185.29 ms. Allocated memory is still 653.3 MB. Free memory was 616.7 MB in the beginning and 603.7 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 50.3 GB. 15.25/8.08 [2019-03-28 22:41:20,054 INFO L168 Benchmark]: BlockEncodingV2 took 75.24 ms. Allocated memory is still 653.3 MB. Free memory was 603.7 MB in the beginning and 598.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. 15.25/8.08 [2019-03-28 22:41:20,055 INFO L168 Benchmark]: TraceAbstraction took 151.03 ms. Allocated memory is still 653.3 MB. Free memory was 598.3 MB in the beginning and 588.8 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 50.3 GB. 15.25/8.08 [2019-03-28 22:41:20,055 INFO L168 Benchmark]: BuchiAutomizer took 2581.43 ms. Allocated memory is still 653.3 MB. Free memory was 588.8 MB in the beginning and 399.5 MB in the end (delta: 189.3 MB). Peak memory consumption was 189.3 MB. Max. memory is 50.3 GB. 15.25/8.08 [2019-03-28 22:41:20,059 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### 15.25/8.08 --- Results --- 15.25/8.08 * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: 15.25/8.08 - StatisticsResult: Initial Icfg 15.25/8.08 7 locations, 9 edges 15.25/8.08 - StatisticsResult: Encoded RCFG 15.25/8.08 3 locations, 5 edges 15.25/8.08 * Results from de.uni_freiburg.informatik.ultimate.core: 15.25/8.08 - StatisticsResult: Toolchain Benchmarks 15.25/8.08 Benchmark results are: 15.25/8.08 * 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. 15.25/8.08 * CACSL2BoogieTranslator took 222.59 ms. Allocated memory is still 649.6 MB. Free memory was 558.5 MB in the beginning and 549.0 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 50.3 GB. 15.25/8.08 * Boogie Procedure Inliner took 87.43 ms. Allocated memory was 649.6 MB in the beginning and 653.3 MB in the end (delta: 3.7 MB). Free memory was 549.0 MB in the beginning and 619.8 MB in the end (delta: -70.7 MB). Peak memory consumption was 20.4 MB. Max. memory is 50.3 GB. 15.25/8.08 * Boogie Preprocessor took 19.13 ms. Allocated memory is still 653.3 MB. Free memory was 619.8 MB in the beginning and 616.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 50.3 GB. 15.25/8.08 * RCFGBuilder took 185.29 ms. Allocated memory is still 653.3 MB. Free memory was 616.7 MB in the beginning and 603.7 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 50.3 GB. 15.25/8.08 * BlockEncodingV2 took 75.24 ms. Allocated memory is still 653.3 MB. Free memory was 603.7 MB in the beginning and 598.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. 15.25/8.08 * TraceAbstraction took 151.03 ms. Allocated memory is still 653.3 MB. Free memory was 598.3 MB in the beginning and 588.8 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 50.3 GB. 15.25/8.08 * BuchiAutomizer took 2581.43 ms. Allocated memory is still 653.3 MB. Free memory was 588.8 MB in the beginning and 399.5 MB in the end (delta: 189.3 MB). Peak memory consumption was 189.3 MB. Max. memory is 50.3 GB. 15.25/8.08 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: 15.25/8.08 - AllSpecificationsHoldResult: All specifications hold 15.25/8.08 We were not able to verify any specifiation because the program does not contain any specification. 15.25/8.08 - InvariantResult [Line: 17]: Loop Invariant 15.25/8.08 Derived loop invariant: 1 15.25/8.08 - StatisticsResult: Ultimate Automizer benchmark data 15.25/8.08 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 15.25/8.08 - StatisticsResult: Constructed decomposition of program 15.25/8.08 Your program was decomposed into 5 terminating modules (2 trivial, 0 deterministic, 3 nondeterministic). One nondeterministic module has affine ranking function x + -1 * K and consists of 4 locations. One nondeterministic module has affine ranking function -1 * K + x and consists of 4 locations. One nondeterministic module has affine ranking function K + -1 * x and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 4 locations. 15.25/8.08 - StatisticsResult: Timing statistics 15.25/8.08 BüchiAutomizer plugin needed 2.5s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 2.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 8 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 9 SDtfs, 20 SDslu, 0 SDs, 0 SdLazy, 56 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT2 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital10 mio100 ax220 hnf100 lsp45 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 16ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.2s 15.25/8.08 - TerminationAnalysisResult: Termination proven 15.25/8.08 Buchi Automizer proved that your program is terminating 15.25/8.08 RESULT: Ultimate proved your program to be correct! 15.25/8.08 !SESSION 2019-03-28 22:41:13.292 ----------------------------------------------- 15.25/8.08 eclipse.buildId=unknown 15.25/8.08 java.version=1.8.0_181 15.25/8.08 java.vendor=Oracle Corporation 15.25/8.08 BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US 15.25/8.08 Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox/benchmark/theBenchmark.c 15.25/8.08 Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox/tmp -i /export/starexec/sandbox/benchmark/theBenchmark.c 15.25/8.08 15.25/8.08 !ENTRY org.eclipse.core.resources 2 10035 2019-03-28 22:41:20.292 15.25/8.08 !MESSAGE The workspace will exit with unsaved changes in this session. 15.25/8.08 Received shutdown request... 15.25/8.08 Ultimate: 15.25/8.08 GTK+ Version Check 15.25/8.08 EOF