16.45/7.82 YES 16.45/7.82 16.45/7.82 Ultimate: Cannot open display: 16.45/7.82 This is Ultimate 0.1.24-8dc7c08-m 16.45/7.82 [2019-03-29 02:07:30,495 INFO L170 SettingsManager]: Resetting all preferences to default values... 16.45/7.82 [2019-03-29 02:07:30,497 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values 16.45/7.82 [2019-03-29 02:07:30,508 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 16.45/7.82 [2019-03-29 02:07:30,509 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values 16.45/7.82 [2019-03-29 02:07:30,510 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values 16.45/7.82 [2019-03-29 02:07:30,511 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values 16.45/7.82 [2019-03-29 02:07:30,512 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values 16.45/7.82 [2019-03-29 02:07:30,514 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values 16.45/7.82 [2019-03-29 02:07:30,515 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values 16.45/7.82 [2019-03-29 02:07:30,515 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 16.45/7.82 [2019-03-29 02:07:30,516 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values 16.45/7.82 [2019-03-29 02:07:30,517 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values 16.45/7.82 [2019-03-29 02:07:30,517 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values 16.45/7.82 [2019-03-29 02:07:30,518 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values 16.45/7.82 [2019-03-29 02:07:30,519 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values 16.45/7.82 [2019-03-29 02:07:30,520 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values 16.45/7.82 [2019-03-29 02:07:30,521 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values 16.45/7.82 [2019-03-29 02:07:30,523 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values 16.45/7.82 [2019-03-29 02:07:30,525 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values 16.45/7.82 [2019-03-29 02:07:30,526 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values 16.45/7.82 [2019-03-29 02:07:30,527 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values 16.45/7.82 [2019-03-29 02:07:30,529 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 16.45/7.82 [2019-03-29 02:07:30,529 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... 16.45/7.82 [2019-03-29 02:07:30,529 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values 16.45/7.82 [2019-03-29 02:07:30,530 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values 16.45/7.82 [2019-03-29 02:07:30,530 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values 16.45/7.82 [2019-03-29 02:07:30,531 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... 16.45/7.82 [2019-03-29 02:07:30,532 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values 16.45/7.82 [2019-03-29 02:07:30,532 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values 16.45/7.82 [2019-03-29 02:07:30,533 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values 16.45/7.82 [2019-03-29 02:07:30,534 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values 16.45/7.82 [2019-03-29 02:07:30,535 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... 16.45/7.82 [2019-03-29 02:07:30,535 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values 16.45/7.82 [2019-03-29 02:07:30,535 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 16.45/7.82 [2019-03-29 02:07:30,536 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... 16.45/7.82 [2019-03-29 02:07:30,536 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values 16.45/7.82 [2019-03-29 02:07:30,537 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values 16.45/7.82 [2019-03-29 02:07:30,537 INFO L181 SettingsManager]: Finished resetting all preferences to default values... 16.45/7.82 [2019-03-29 02:07:30,538 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf 16.45/7.82 [2019-03-29 02:07:30,552 INFO L110 SettingsManager]: Loading preferences was successful 16.45/7.82 [2019-03-29 02:07:30,553 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: 16.45/7.82 [2019-03-29 02:07:30,554 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: 16.45/7.82 [2019-03-29 02:07:30,554 INFO L133 SettingsManager]: * Rewrite not-equals=true 16.45/7.82 [2019-03-29 02:07:30,554 INFO L133 SettingsManager]: * Create parallel compositions if possible=false 16.45/7.82 [2019-03-29 02:07:30,554 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE 16.45/7.82 [2019-03-29 02:07:30,554 INFO L133 SettingsManager]: * Use SBE=true 16.45/7.82 [2019-03-29 02:07:30,555 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: 16.45/7.82 [2019-03-29 02:07:30,555 INFO L133 SettingsManager]: * Use old map elimination=false 16.45/7.82 [2019-03-29 02:07:30,555 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false 16.45/7.82 [2019-03-29 02:07:30,555 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION 16.45/7.82 [2019-03-29 02:07:30,555 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true 16.45/7.82 [2019-03-29 02:07:30,555 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES 16.45/7.82 [2019-03-29 02:07:30,556 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true 16.45/7.82 [2019-03-29 02:07:30,556 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 16.45/7.82 [2019-03-29 02:07:30,556 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: 16.45/7.82 [2019-03-29 02:07:30,556 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false 16.45/7.82 [2019-03-29 02:07:30,556 INFO L133 SettingsManager]: * Check division by zero=IGNORE 16.45/7.82 [2019-03-29 02:07:30,556 INFO L133 SettingsManager]: * Check if freed pointer was valid=false 16.45/7.82 [2019-03-29 02:07:30,557 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false 16.45/7.82 [2019-03-29 02:07:30,557 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE 16.45/7.82 [2019-03-29 02:07:30,557 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: 16.45/7.82 [2019-03-29 02:07:30,557 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements 16.45/7.82 [2019-03-29 02:07:30,557 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump 16.45/7.82 [2019-03-29 02:07:30,557 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 16.45/7.82 [2019-03-29 02:07:30,558 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: 16.45/7.82 [2019-03-29 02:07:30,558 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles 16.45/7.82 [2019-03-29 02:07:30,558 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL 16.45/7.82 [2019-03-29 02:07:30,558 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 16.45/7.82 [2019-03-29 02:07:30,583 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp 16.45/7.82 [2019-03-29 02:07:30,596 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized 16.45/7.82 [2019-03-29 02:07:30,600 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. 16.45/7.82 [2019-03-29 02:07:30,601 INFO L271 PluginConnector]: Initializing CDTParser... 16.45/7.82 [2019-03-29 02:07:30,601 INFO L276 PluginConnector]: CDTParser initialized 16.45/7.82 [2019-03-29 02:07:30,602 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c 16.45/7.82 [2019-03-29 02:07:30,659 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/a8768fc13ef74a8181ddd02b9913da9c/FLAG25af75b49 16.45/7.82 [2019-03-29 02:07:31,012 INFO L307 CDTParser]: Found 1 translation units. 16.45/7.82 [2019-03-29 02:07:31,012 INFO L161 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c 16.45/7.82 [2019-03-29 02:07:31,019 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/a8768fc13ef74a8181ddd02b9913da9c/FLAG25af75b49 16.45/7.82 [2019-03-29 02:07:31,459 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/a8768fc13ef74a8181ddd02b9913da9c 16.45/7.82 [2019-03-29 02:07:31,470 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### 16.45/7.82 [2019-03-29 02:07:31,472 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. 16.45/7.82 [2019-03-29 02:07:31,473 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- 16.45/7.82 [2019-03-29 02:07:31,473 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... 16.45/7.82 [2019-03-29 02:07:31,476 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized 16.45/7.82 [2019-03-29 02:07:31,477 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.03 02:07:31" (1/1) ... 16.45/7.82 [2019-03-29 02:07:31,481 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@707ea5ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 02:07:31, skipping insertion in model container 16.45/7.82 [2019-03-29 02:07:31,481 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.03 02:07:31" (1/1) ... 16.45/7.82 [2019-03-29 02:07:31,489 INFO L145 MainTranslator]: Starting translation in SV-COMP mode 16.45/7.82 [2019-03-29 02:07:31,506 INFO L176 MainTranslator]: Built tables and reachable declarations 16.45/7.82 [2019-03-29 02:07:31,662 INFO L206 PostProcessor]: Analyzing one entry point: main 16.45/7.82 [2019-03-29 02:07:31,667 INFO L191 MainTranslator]: Completed pre-run 16.45/7.82 [2019-03-29 02:07:31,683 INFO L206 PostProcessor]: Analyzing one entry point: main 16.45/7.82 [2019-03-29 02:07:31,698 INFO L195 MainTranslator]: Completed translation 16.45/7.82 [2019-03-29 02:07:31,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 02:07:31 WrapperNode 16.45/7.82 [2019-03-29 02:07:31,698 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- 16.45/7.82 [2019-03-29 02:07:31,699 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- 16.45/7.82 [2019-03-29 02:07:31,699 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... 16.45/7.82 [2019-03-29 02:07:31,700 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized 16.45/7.82 [2019-03-29 02:07:31,772 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 02:07:31" (1/1) ... 16.45/7.82 [2019-03-29 02:07:31,778 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 02:07:31" (1/1) ... 16.45/7.82 [2019-03-29 02:07:31,799 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- 16.45/7.82 [2019-03-29 02:07:31,799 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- 16.45/7.82 [2019-03-29 02:07:31,800 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... 16.45/7.82 [2019-03-29 02:07:31,800 INFO L276 PluginConnector]: Boogie Preprocessor initialized 16.45/7.82 [2019-03-29 02:07:31,810 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 02:07:31" (1/1) ... 16.45/7.82 [2019-03-29 02:07:31,810 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 02:07:31" (1/1) ... 16.45/7.82 [2019-03-29 02:07:31,811 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 02:07:31" (1/1) ... 16.45/7.82 [2019-03-29 02:07:31,811 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 02:07:31" (1/1) ... 16.45/7.82 [2019-03-29 02:07:31,813 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 02:07:31" (1/1) ... 16.45/7.82 [2019-03-29 02:07:31,818 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 02:07:31" (1/1) ... 16.45/7.82 [2019-03-29 02:07:31,819 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 02:07:31" (1/1) ... 16.45/7.82 [2019-03-29 02:07:31,820 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- 16.45/7.82 [2019-03-29 02:07:31,821 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- 16.45/7.82 [2019-03-29 02:07:31,821 INFO L271 PluginConnector]: Initializing RCFGBuilder... 16.45/7.82 [2019-03-29 02:07:31,821 INFO L276 PluginConnector]: RCFGBuilder initialized 16.45/7.82 [2019-03-29 02:07:31,822 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 02:07:31" (1/1) ... 16.45/7.82 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 16.45/7.82 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) 16.45/7.82 Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 16.45/7.82 [2019-03-29 02:07:31,891 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start 16.45/7.82 [2019-03-29 02:07:31,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start 16.45/7.82 [2019-03-29 02:07:32,022 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) 16.45/7.82 [2019-03-29 02:07:32,022 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. 16.45/7.82 [2019-03-29 02:07:32,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.03 02:07:32 BoogieIcfgContainer 16.45/7.82 [2019-03-29 02:07:32,024 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- 16.45/7.82 [2019-03-29 02:07:32,024 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- 16.45/7.82 [2019-03-29 02:07:32,024 INFO L271 PluginConnector]: Initializing BlockEncodingV2... 16.45/7.82 [2019-03-29 02:07:32,027 INFO L276 PluginConnector]: BlockEncodingV2 initialized 16.45/7.82 [2019-03-29 02:07:32,028 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.03 02:07:32" (1/1) ... 16.45/7.82 [2019-03-29 02:07:32,043 INFO L313 BlockEncoder]: Initial Icfg 8 locations, 11 edges 16.45/7.82 [2019-03-29 02:07:32,045 INFO L258 BlockEncoder]: Using Remove infeasible edges 16.45/7.82 [2019-03-29 02:07:32,046 INFO L263 BlockEncoder]: Using Maximize final states 16.45/7.82 [2019-03-29 02:07:32,046 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false 16.45/7.82 [2019-03-29 02:07:32,047 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE 16.45/7.82 [2019-03-29 02:07:32,049 INFO L296 BlockEncoder]: Using Remove sink states 16.45/7.82 [2019-03-29 02:07:32,050 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true 16.45/7.82 [2019-03-29 02:07:32,051 INFO L179 BlockEncoder]: Using Rewrite not-equals 16.45/7.82 [2019-03-29 02:07:32,068 INFO L185 BlockEncoder]: Using Use SBE 16.45/7.82 [2019-03-29 02:07:32,082 INFO L200 BlockEncoder]: SBE split 1 edges 16.45/7.82 [2019-03-29 02:07:32,087 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility 16.45/7.82 [2019-03-29 02:07:32,089 INFO L71 MaximizeFinalStates]: 0 new accepting states 16.45/7.82 [2019-03-29 02:07:32,100 INFO L100 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding 16.45/7.82 [2019-03-29 02:07:32,103 INFO L70 RemoveSinkStates]: Removed 3 edges and 2 locations by removing sink states 16.45/7.82 [2019-03-29 02:07:32,105 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility 16.45/7.82 [2019-03-29 02:07:32,105 INFO L71 MaximizeFinalStates]: 0 new accepting states 16.45/7.82 [2019-03-29 02:07:32,110 INFO L100 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding 16.45/7.82 [2019-03-29 02:07:32,110 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states 16.45/7.82 [2019-03-29 02:07:32,110 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility 16.45/7.82 [2019-03-29 02:07:32,111 INFO L71 MaximizeFinalStates]: 0 new accepting states 16.45/7.82 [2019-03-29 02:07:32,111 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding 16.45/7.82 [2019-03-29 02:07:32,111 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states 16.45/7.82 [2019-03-29 02:07:32,112 INFO L313 BlockEncoder]: Encoded RCFG 3 locations, 5 edges 16.45/7.82 [2019-03-29 02:07:32,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 29.03 02:07:32 BasicIcfg 16.45/7.82 [2019-03-29 02:07:32,112 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- 16.45/7.82 [2019-03-29 02:07:32,113 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- 16.45/7.82 [2019-03-29 02:07:32,113 INFO L271 PluginConnector]: Initializing TraceAbstraction... 16.45/7.82 [2019-03-29 02:07:32,117 INFO L276 PluginConnector]: TraceAbstraction initialized 16.45/7.82 [2019-03-29 02:07:32,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.03 02:07:31" (1/4) ... 16.45/7.82 [2019-03-29 02:07:32,118 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f0f1db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.03 02:07:32, skipping insertion in model container 16.45/7.82 [2019-03-29 02:07:32,118 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 02:07:31" (2/4) ... 16.45/7.82 [2019-03-29 02:07:32,119 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f0f1db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.03 02:07:32, skipping insertion in model container 16.45/7.82 [2019-03-29 02:07:32,119 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.03 02:07:32" (3/4) ... 16.45/7.82 [2019-03-29 02:07:32,119 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f0f1db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.03 02:07:32, skipping insertion in model container 16.45/7.82 [2019-03-29 02:07:32,119 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 29.03 02:07:32" (4/4) ... 16.45/7.82 [2019-03-29 02:07:32,121 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 16.45/7.82 [2019-03-29 02:07:32,131 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION 16.45/7.82 [2019-03-29 02:07:32,139 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. 16.45/7.82 [2019-03-29 02:07:32,157 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. 16.45/7.82 [2019-03-29 02:07:32,185 INFO L133 ementStrategyFactory]: Using default assertion order modulation 16.45/7.82 [2019-03-29 02:07:32,186 INFO L382 AbstractCegarLoop]: Interprodecural is true 16.45/7.82 [2019-03-29 02:07:32,186 INFO L383 AbstractCegarLoop]: Hoare is true 16.45/7.82 [2019-03-29 02:07:32,186 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates 16.45/7.82 [2019-03-29 02:07:32,187 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE 16.45/7.82 [2019-03-29 02:07:32,187 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION 16.45/7.82 [2019-03-29 02:07:32,187 INFO L387 AbstractCegarLoop]: Difference is false 16.45/7.82 [2019-03-29 02:07:32,187 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA 16.45/7.82 [2019-03-29 02:07:32,187 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== 16.45/7.82 [2019-03-29 02:07:32,202 INFO L276 IsEmpty]: Start isEmpty. Operand 3 states. 16.45/7.82 [2019-03-29 02:07:32,207 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. 16.45/7.82 [2019-03-29 02:07:32,210 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. 16.45/7.82 [2019-03-29 02:07:32,259 INFO L451 ceAbstractionStarter]: At program point L19-2(lines 18 24) the Hoare annotation is: true 16.45/7.82 [2019-03-29 02:07:32,259 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. 16.45/7.82 [2019-03-29 02:07:32,260 INFO L448 ceAbstractionStarter]: For program point L19(lines 19 23) no Hoare annotation was computed. 16.45/7.82 [2019-03-29 02:07:32,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.03 02:07:32 BasicIcfg 16.45/7.82 [2019-03-29 02:07:32,268 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- 16.45/7.82 [2019-03-29 02:07:32,268 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- 16.45/7.82 [2019-03-29 02:07:32,269 INFO L271 PluginConnector]: Initializing BuchiAutomizer... 16.45/7.82 [2019-03-29 02:07:32,272 INFO L276 PluginConnector]: BuchiAutomizer initialized 16.45/7.82 [2019-03-29 02:07:32,273 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 16.45/7.82 [2019-03-29 02:07:32,273 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.03 02:07:31" (1/5) ... 16.45/7.82 [2019-03-29 02:07:32,273 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@52b6ca5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.03 02:07:32, skipping insertion in model container 16.45/7.82 [2019-03-29 02:07:32,274 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 16.45/7.82 [2019-03-29 02:07:32,274 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 02:07:31" (2/5) ... 16.45/7.82 [2019-03-29 02:07:32,274 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@52b6ca5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.03 02:07:32, skipping insertion in model container 16.45/7.82 [2019-03-29 02:07:32,274 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 16.45/7.82 [2019-03-29 02:07:32,274 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.03 02:07:32" (3/5) ... 16.45/7.82 [2019-03-29 02:07:32,275 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@52b6ca5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.03 02:07:32, skipping insertion in model container 16.45/7.82 [2019-03-29 02:07:32,275 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 16.45/7.82 [2019-03-29 02:07:32,275 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 29.03 02:07:32" (4/5) ... 16.45/7.82 [2019-03-29 02:07:32,276 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@52b6ca5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.03 02:07:32, skipping insertion in model container 16.45/7.82 [2019-03-29 02:07:32,276 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 16.45/7.82 [2019-03-29 02:07:32,276 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.03 02:07:32" (5/5) ... 16.45/7.82 [2019-03-29 02:07:32,277 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 16.45/7.82 [2019-03-29 02:07:32,305 INFO L133 ementStrategyFactory]: Using default assertion order modulation 16.45/7.82 [2019-03-29 02:07:32,305 INFO L374 BuchiCegarLoop]: Interprodecural is true 16.45/7.82 [2019-03-29 02:07:32,305 INFO L375 BuchiCegarLoop]: Hoare is true 16.45/7.82 [2019-03-29 02:07:32,306 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates 16.45/7.82 [2019-03-29 02:07:32,306 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE 16.45/7.82 [2019-03-29 02:07:32,306 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION 16.45/7.82 [2019-03-29 02:07:32,306 INFO L379 BuchiCegarLoop]: Difference is false 16.45/7.82 [2019-03-29 02:07:32,306 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA 16.45/7.82 [2019-03-29 02:07:32,306 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== 16.45/7.82 [2019-03-29 02:07:32,310 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. 16.45/7.82 [2019-03-29 02:07:32,328 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 16.45/7.82 [2019-03-29 02:07:32,328 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 16.45/7.82 [2019-03-29 02:07:32,329 INFO L119 BuchiIsEmpty]: Starting construction of run 16.45/7.82 [2019-03-29 02:07:32,334 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] 16.45/7.82 [2019-03-29 02:07:32,334 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] 16.45/7.82 [2019-03-29 02:07:32,335 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ 16.45/7.82 [2019-03-29 02:07:32,335 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. 16.45/7.82 [2019-03-29 02:07:32,335 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 16.45/7.82 [2019-03-29 02:07:32,335 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 16.45/7.82 [2019-03-29 02:07:32,336 INFO L119 BuchiIsEmpty]: Starting construction of run 16.45/7.82 [2019-03-29 02:07:32,336 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] 16.45/7.82 [2019-03-29 02:07:32,336 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] 16.45/7.82 [2019-03-29 02:07:32,341 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [48] ULTIMATE.startENTRY-->L19-2: Formula: (< 0 v_ULTIMATE.start_main_~M~0_12) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_6|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_~M~0=v_ULTIMATE.start_main_~M~0_12, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#res, ULTIMATE.start_main_~M~0, ULTIMATE.start_main_~x~0] 4#L19-2true 16.45/7.82 [2019-03-29 02:07:32,342 INFO L796 eck$LassoCheckResult]: Loop: 4#L19-2true [44] L19-2-->L19: Formula: (> v_ULTIMATE.start_main_~M~0_11 v_ULTIMATE.start_main_~x~0_11) InVars {ULTIMATE.start_main_~M~0=v_ULTIMATE.start_main_~M~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} OutVars{ULTIMATE.start_main_~M~0=v_ULTIMATE.start_main_~M~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[] 5#L19true [38] L19-->L19-2: Formula: (and (< v_ULTIMATE.start_main_~M~0_1 v_ULTIMATE.start_main_~x~0_2) (= v_ULTIMATE.start_main_~x~0_1 0)) InVars {ULTIMATE.start_main_~M~0=v_ULTIMATE.start_main_~M~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_2} OutVars{ULTIMATE.start_main_~M~0=v_ULTIMATE.start_main_~M~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 4#L19-2true 16.45/7.82 [2019-03-29 02:07:32,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 16.45/7.82 [2019-03-29 02:07:32,348 INFO L82 PathProgramCache]: Analyzing trace with hash 79, now seen corresponding path program 1 times 16.45/7.82 [2019-03-29 02:07:32,349 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 16.45/7.82 [2019-03-29 02:07:32,350 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 16.45/7.82 [2019-03-29 02:07:32,378 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.45/7.82 [2019-03-29 02:07:32,378 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 16.45/7.82 [2019-03-29 02:07:32,378 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.45/7.82 [2019-03-29 02:07:32,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 16.45/7.82 [2019-03-29 02:07:32,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 16.45/7.82 [2019-03-29 02:07:32,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 16.45/7.82 [2019-03-29 02:07:32,417 INFO L82 PathProgramCache]: Analyzing trace with hash 2363, now seen corresponding path program 1 times 16.45/7.82 [2019-03-29 02:07:32,417 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 16.45/7.82 [2019-03-29 02:07:32,417 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 16.45/7.82 [2019-03-29 02:07:32,419 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.45/7.82 [2019-03-29 02:07:32,419 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 16.45/7.82 [2019-03-29 02:07:32,419 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.45/7.82 [2019-03-29 02:07:32,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 16.45/7.82 [2019-03-29 02:07:32,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. 16.45/7.82 [2019-03-29 02:07:32,471 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. 16.45/7.82 [2019-03-29 02:07:32,471 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 16.45/7.82 [2019-03-29 02:07:32,476 INFO L811 eck$LassoCheckResult]: loop already infeasible 16.45/7.82 [2019-03-29 02:07:32,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. 16.45/7.82 [2019-03-29 02:07:32,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 16.45/7.82 [2019-03-29 02:07:32,493 INFO L87 Difference]: Start difference. First operand 3 states. Second operand 3 states. 16.45/7.82 [2019-03-29 02:07:32,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. 16.45/7.82 [2019-03-29 02:07:32,516 INFO L93 Difference]: Finished difference Result 4 states and 6 transitions. 16.45/7.82 [2019-03-29 02:07:32,516 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 16.45/7.82 [2019-03-29 02:07:32,520 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 4 states and 6 transitions. 16.45/7.82 [2019-03-29 02:07:32,521 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 16.45/7.82 [2019-03-29 02:07:32,526 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 4 states to 4 states and 6 transitions. 16.45/7.82 [2019-03-29 02:07:32,527 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 16.45/7.82 [2019-03-29 02:07:32,528 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 16.45/7.82 [2019-03-29 02:07:32,528 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 6 transitions. 16.45/7.82 [2019-03-29 02:07:32,529 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. 16.45/7.82 [2019-03-29 02:07:32,529 INFO L706 BuchiCegarLoop]: Abstraction has 4 states and 6 transitions. 16.45/7.82 [2019-03-29 02:07:32,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4 states and 6 transitions. 16.45/7.82 [2019-03-29 02:07:32,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4 to 4. 16.45/7.82 [2019-03-29 02:07:32,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. 16.45/7.82 [2019-03-29 02:07:32,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions. 16.45/7.82 [2019-03-29 02:07:32,561 INFO L729 BuchiCegarLoop]: Abstraction has 4 states and 6 transitions. 16.45/7.82 [2019-03-29 02:07:32,561 INFO L609 BuchiCegarLoop]: Abstraction has 4 states and 6 transitions. 16.45/7.82 [2019-03-29 02:07:32,561 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ 16.45/7.82 [2019-03-29 02:07:32,562 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states and 6 transitions. 16.45/7.82 [2019-03-29 02:07:32,562 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 16.45/7.82 [2019-03-29 02:07:32,562 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 16.45/7.82 [2019-03-29 02:07:32,562 INFO L119 BuchiIsEmpty]: Starting construction of run 16.45/7.82 [2019-03-29 02:07:32,563 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] 16.45/7.82 [2019-03-29 02:07:32,563 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] 16.45/7.82 [2019-03-29 02:07:32,563 INFO L794 eck$LassoCheckResult]: Stem: 16#ULTIMATE.startENTRY [48] ULTIMATE.startENTRY-->L19-2: Formula: (< 0 v_ULTIMATE.start_main_~M~0_12) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_6|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_~M~0=v_ULTIMATE.start_main_~M~0_12, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#res, ULTIMATE.start_main_~M~0, ULTIMATE.start_main_~x~0] 17#L19-2 16.45/7.82 [2019-03-29 02:07:32,564 INFO L796 eck$LassoCheckResult]: Loop: 17#L19-2 [44] L19-2-->L19: Formula: (> v_ULTIMATE.start_main_~M~0_11 v_ULTIMATE.start_main_~x~0_11) InVars {ULTIMATE.start_main_~M~0=v_ULTIMATE.start_main_~M~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} OutVars{ULTIMATE.start_main_~M~0=v_ULTIMATE.start_main_~M~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[] 18#L19 [43] L19-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_8 (+ v_ULTIMATE.start_main_~x~0_9 1)) (>= v_ULTIMATE.start_main_~M~0_7 v_ULTIMATE.start_main_~x~0_9)) InVars {ULTIMATE.start_main_~M~0=v_ULTIMATE.start_main_~M~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} OutVars{ULTIMATE.start_main_~M~0=v_ULTIMATE.start_main_~M~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 17#L19-2 16.45/7.82 [2019-03-29 02:07:32,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 16.45/7.82 [2019-03-29 02:07:32,564 INFO L82 PathProgramCache]: Analyzing trace with hash 79, now seen corresponding path program 2 times 16.45/7.82 [2019-03-29 02:07:32,564 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 16.45/7.82 [2019-03-29 02:07:32,564 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 16.45/7.82 [2019-03-29 02:07:32,566 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.45/7.82 [2019-03-29 02:07:32,566 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 16.45/7.82 [2019-03-29 02:07:32,566 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.45/7.82 [2019-03-29 02:07:32,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 16.45/7.82 [2019-03-29 02:07:32,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 16.45/7.82 [2019-03-29 02:07:32,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 16.45/7.82 [2019-03-29 02:07:32,570 INFO L82 PathProgramCache]: Analyzing trace with hash 2368, now seen corresponding path program 1 times 16.45/7.82 [2019-03-29 02:07:32,570 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 16.45/7.82 [2019-03-29 02:07:32,571 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 16.45/7.82 [2019-03-29 02:07:32,572 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.45/7.82 [2019-03-29 02:07:32,572 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY 16.45/7.82 [2019-03-29 02:07:32,572 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.45/7.82 [2019-03-29 02:07:32,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 16.45/7.82 [2019-03-29 02:07:32,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 16.45/7.82 [2019-03-29 02:07:32,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 16.45/7.82 [2019-03-29 02:07:32,579 INFO L82 PathProgramCache]: Analyzing trace with hash 77326, now seen corresponding path program 1 times 16.45/7.82 [2019-03-29 02:07:32,579 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 16.45/7.82 [2019-03-29 02:07:32,580 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 16.45/7.82 [2019-03-29 02:07:32,581 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.45/7.82 [2019-03-29 02:07:32,581 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 16.45/7.82 [2019-03-29 02:07:32,581 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.45/7.82 [2019-03-29 02:07:32,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 16.45/7.82 [2019-03-29 02:07:32,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 16.45/7.82 [2019-03-29 02:07:32,623 INFO L216 LassoAnalysis]: Preferences: 16.45/7.82 [2019-03-29 02:07:32,624 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 16.45/7.82 [2019-03-29 02:07:32,624 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 16.45/7.82 [2019-03-29 02:07:32,624 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 16.45/7.82 [2019-03-29 02:07:32,624 INFO L127 ssoRankerPreferences]: Use exernal solver: true 16.45/7.82 [2019-03-29 02:07:32,624 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 16.45/7.82 [2019-03-29 02:07:32,625 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 16.45/7.82 [2019-03-29 02:07:32,625 INFO L130 ssoRankerPreferences]: Path of dumped script: 16.45/7.82 [2019-03-29 02:07:32,625 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop 16.45/7.82 [2019-03-29 02:07:32,625 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 16.45/7.82 [2019-03-29 02:07:32,625 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 16.45/7.82 [2019-03-29 02:07:32,643 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 16.45/7.82 [2019-03-29 02:07:32,652 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 16.45/7.82 [2019-03-29 02:07:32,659 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 16.45/7.82 [2019-03-29 02:07:32,723 INFO L300 LassoAnalysis]: Preprocessing complete. 16.45/7.82 [2019-03-29 02:07:32,724 INFO L412 LassoAnalysis]: Checking for nontermination... 16.45/7.82 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 16.45/7.82 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 16.45/7.82 Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 16.45/7.82 [2019-03-29 02:07:32,732 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 16.45/7.82 [2019-03-29 02:07:32,733 INFO L163 nArgumentSynthesizer]: Using integer mode. 16.45/7.82 [2019-03-29 02:07:32,766 INFO L445 LassoAnalysis]: Proved nontermination for one component. 16.45/7.82 [2019-03-29 02:07:32,766 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: [] 16.45/7.82 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 16.45/7.82 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 16.45/7.82 Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 16.45/7.82 [2019-03-29 02:07:32,772 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 16.45/7.82 [2019-03-29 02:07:32,773 INFO L163 nArgumentSynthesizer]: Using integer mode. 16.45/7.82 [2019-03-29 02:07:32,800 INFO L445 LassoAnalysis]: Proved nontermination for one component. 16.45/7.82 [2019-03-29 02:07:32,800 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: [] 16.45/7.82 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 16.45/7.82 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 16.45/7.82 Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 16.45/7.82 [2019-03-29 02:07:32,805 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 16.45/7.82 [2019-03-29 02:07:32,805 INFO L163 nArgumentSynthesizer]: Using integer mode. 16.45/7.82 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 16.45/7.82 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 16.45/7.82 Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 16.45/7.82 [2019-03-29 02:07:32,835 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true 16.45/7.82 [2019-03-29 02:07:32,835 INFO L163 nArgumentSynthesizer]: Using integer mode. 16.45/7.82 [2019-03-29 02:07:33,056 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. 16.45/7.82 [2019-03-29 02:07:33,059 INFO L216 LassoAnalysis]: Preferences: 16.45/7.82 [2019-03-29 02:07:33,059 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 16.45/7.82 [2019-03-29 02:07:33,059 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 16.45/7.82 [2019-03-29 02:07:33,059 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 16.45/7.82 [2019-03-29 02:07:33,060 INFO L127 ssoRankerPreferences]: Use exernal solver: false 16.45/7.82 [2019-03-29 02:07:33,060 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 16.45/7.82 [2019-03-29 02:07:33,060 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 16.45/7.82 [2019-03-29 02:07:33,060 INFO L130 ssoRankerPreferences]: Path of dumped script: 16.45/7.82 [2019-03-29 02:07:33,060 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop 16.45/7.82 [2019-03-29 02:07:33,060 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 16.45/7.82 [2019-03-29 02:07:33,060 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 16.45/7.82 [2019-03-29 02:07:33,062 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 16.45/7.82 [2019-03-29 02:07:33,066 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 16.45/7.82 [2019-03-29 02:07:33,077 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 16.45/7.82 [2019-03-29 02:07:33,133 INFO L300 LassoAnalysis]: Preprocessing complete. 16.45/7.82 [2019-03-29 02:07:33,139 INFO L497 LassoAnalysis]: Using template 'affine'. 16.45/7.82 [2019-03-29 02:07:33,141 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 16.45/7.82 Termination analysis: LINEAR_WITH_GUESSES 16.45/7.82 Number of strict supporting invariants: 0 16.45/7.82 Number of non-strict supporting invariants: 1 16.45/7.82 Consider only non-deceasing supporting invariants: true 16.45/7.82 Simplify termination arguments: true 16.45/7.82 Simplify supporting invariants: trueOverapproximate stem: false 16.45/7.82 [2019-03-29 02:07:33,142 INFO L339 nArgumentSynthesizer]: Template has degree 0. 16.45/7.82 [2019-03-29 02:07:33,143 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 16.45/7.82 [2019-03-29 02:07:33,143 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 16.45/7.82 [2019-03-29 02:07:33,143 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 16.45/7.82 [2019-03-29 02:07:33,148 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. 16.45/7.82 [2019-03-29 02:07:33,148 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. 16.45/7.82 [2019-03-29 02:07:33,157 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. 16.45/7.82 [2019-03-29 02:07:33,157 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 16.45/7.82 Termination analysis: LINEAR_WITH_GUESSES 16.45/7.82 Number of strict supporting invariants: 0 16.45/7.82 Number of non-strict supporting invariants: 1 16.45/7.82 Consider only non-deceasing supporting invariants: true 16.45/7.82 Simplify termination arguments: true 16.45/7.82 Simplify supporting invariants: trueOverapproximate stem: false 16.45/7.82 [2019-03-29 02:07:33,158 INFO L339 nArgumentSynthesizer]: Template has degree 0. 16.45/7.82 [2019-03-29 02:07:33,159 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 16.45/7.82 [2019-03-29 02:07:33,159 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 16.45/7.82 [2019-03-29 02:07:33,159 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 16.45/7.82 [2019-03-29 02:07:33,159 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 16.45/7.82 [2019-03-29 02:07:33,160 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 16.45/7.82 [2019-03-29 02:07:33,161 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 16.45/7.82 [2019-03-29 02:07:33,167 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. 16.45/7.82 [2019-03-29 02:07:33,174 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. 16.45/7.82 [2019-03-29 02:07:33,174 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. 16.45/7.82 [2019-03-29 02:07:33,177 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... 16.45/7.82 [2019-03-29 02:07:33,177 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. 16.45/7.82 [2019-03-29 02:07:33,177 INFO L518 LassoAnalysis]: Proved termination. 16.45/7.82 [2019-03-29 02:07:33,178 INFO L520 LassoAnalysis]: Termination argument consisting of: 16.45/7.82 Ranking function f(ULTIMATE.start_main_~M~0, ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~M~0 - 1*ULTIMATE.start_main_~x~0 16.45/7.82 Supporting invariants [] 16.45/7.82 [2019-03-29 02:07:33,179 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed 16.45/7.82 [2019-03-29 02:07:33,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 16.45/7.82 [2019-03-29 02:07:33,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 16.45/7.82 [2019-03-29 02:07:33,229 WARN L254 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 2 conjunts are in the unsatisfiable core 16.45/7.82 [2019-03-29 02:07:33,230 INFO L279 TraceCheckSpWp]: Computing forward predicates... 16.45/7.82 [2019-03-29 02:07:33,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 16.45/7.82 [2019-03-29 02:07:33,246 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core 16.45/7.82 [2019-03-29 02:07:33,246 INFO L279 TraceCheckSpWp]: Computing forward predicates... 16.45/7.82 [2019-03-29 02:07:33,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. 16.45/7.82 [2019-03-29 02:07:33,250 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization 16.45/7.82 [2019-03-29 02:07:33,253 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates 16.45/7.82 [2019-03-29 02:07:33,253 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 4 states and 6 transitions. cyclomatic complexity: 3 Second operand 3 states. 16.45/7.82 [2019-03-29 02:07:33,280 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 4 states. 16.45/7.82 [2019-03-29 02:07:33,280 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 16.45/7.82 [2019-03-29 02:07:33,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. 16.45/7.82 [2019-03-29 02:07:33,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. 16.45/7.82 [2019-03-29 02:07:33,283 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 1 letters. Loop has 2 letters. 16.45/7.82 [2019-03-29 02:07:33,285 INFO L116 BuchiAccepts]: Finished buchiAccepts. 16.45/7.82 [2019-03-29 02:07:33,285 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 3 letters. Loop has 2 letters. 16.45/7.82 [2019-03-29 02:07:33,285 INFO L116 BuchiAccepts]: Finished buchiAccepts. 16.45/7.82 [2019-03-29 02:07:33,285 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 1 letters. Loop has 4 letters. 16.45/7.82 [2019-03-29 02:07:33,286 INFO L116 BuchiAccepts]: Finished buchiAccepts. 16.45/7.82 [2019-03-29 02:07:33,289 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 17 transitions. 16.45/7.82 [2019-03-29 02:07:33,291 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 16.45/7.82 [2019-03-29 02:07:33,291 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 9 states and 15 transitions. 16.45/7.82 [2019-03-29 02:07:33,291 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 16.45/7.82 [2019-03-29 02:07:33,292 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 16.45/7.82 [2019-03-29 02:07:33,292 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 15 transitions. 16.45/7.82 [2019-03-29 02:07:33,292 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. 16.45/7.82 [2019-03-29 02:07:33,292 INFO L706 BuchiCegarLoop]: Abstraction has 9 states and 15 transitions. 16.45/7.82 [2019-03-29 02:07:33,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 15 transitions. 16.45/7.82 [2019-03-29 02:07:33,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. 16.45/7.82 [2019-03-29 02:07:33,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. 16.45/7.82 [2019-03-29 02:07:33,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 14 transitions. 16.45/7.82 [2019-03-29 02:07:33,294 INFO L729 BuchiCegarLoop]: Abstraction has 8 states and 14 transitions. 16.45/7.82 [2019-03-29 02:07:33,294 INFO L609 BuchiCegarLoop]: Abstraction has 8 states and 14 transitions. 16.45/7.82 [2019-03-29 02:07:33,294 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ 16.45/7.82 [2019-03-29 02:07:33,294 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 14 transitions. 16.45/7.82 [2019-03-29 02:07:33,295 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 16.45/7.82 [2019-03-29 02:07:33,295 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 16.45/7.82 [2019-03-29 02:07:33,295 INFO L119 BuchiIsEmpty]: Starting construction of run 16.45/7.82 [2019-03-29 02:07:33,296 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] 16.45/7.82 [2019-03-29 02:07:33,296 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] 16.45/7.82 [2019-03-29 02:07:33,296 INFO L794 eck$LassoCheckResult]: Stem: 58#ULTIMATE.startENTRY [48] ULTIMATE.startENTRY-->L19-2: Formula: (< 0 v_ULTIMATE.start_main_~M~0_12) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_6|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_~M~0=v_ULTIMATE.start_main_~M~0_12, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#res, ULTIMATE.start_main_~M~0, ULTIMATE.start_main_~x~0] 59#L19-2 [45] L19-2-->L19: Formula: (< v_ULTIMATE.start_main_~M~0_11 v_ULTIMATE.start_main_~x~0_11) InVars {ULTIMATE.start_main_~M~0=v_ULTIMATE.start_main_~M~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} OutVars{ULTIMATE.start_main_~M~0=v_ULTIMATE.start_main_~M~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[] 65#L19 [38] L19-->L19-2: Formula: (and (< v_ULTIMATE.start_main_~M~0_1 v_ULTIMATE.start_main_~x~0_2) (= v_ULTIMATE.start_main_~x~0_1 0)) InVars {ULTIMATE.start_main_~M~0=v_ULTIMATE.start_main_~M~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_2} OutVars{ULTIMATE.start_main_~M~0=v_ULTIMATE.start_main_~M~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 60#L19-2 16.45/7.82 [2019-03-29 02:07:33,296 INFO L796 eck$LassoCheckResult]: Loop: 60#L19-2 [44] L19-2-->L19: Formula: (> v_ULTIMATE.start_main_~M~0_11 v_ULTIMATE.start_main_~x~0_11) InVars {ULTIMATE.start_main_~M~0=v_ULTIMATE.start_main_~M~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} OutVars{ULTIMATE.start_main_~M~0=v_ULTIMATE.start_main_~M~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[] 61#L19 [43] L19-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_8 (+ v_ULTIMATE.start_main_~x~0_9 1)) (>= v_ULTIMATE.start_main_~M~0_7 v_ULTIMATE.start_main_~x~0_9)) InVars {ULTIMATE.start_main_~M~0=v_ULTIMATE.start_main_~M~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} OutVars{ULTIMATE.start_main_~M~0=v_ULTIMATE.start_main_~M~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 60#L19-2 16.45/7.82 [2019-03-29 02:07:33,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 16.45/7.82 [2019-03-29 02:07:33,297 INFO L82 PathProgramCache]: Analyzing trace with hash 77352, now seen corresponding path program 1 times 16.45/7.82 [2019-03-29 02:07:33,297 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 16.45/7.82 [2019-03-29 02:07:33,297 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 16.45/7.82 [2019-03-29 02:07:33,299 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.45/7.82 [2019-03-29 02:07:33,299 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 16.45/7.82 [2019-03-29 02:07:33,299 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.45/7.82 [2019-03-29 02:07:33,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 16.45/7.82 [2019-03-29 02:07:33,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 16.45/7.82 [2019-03-29 02:07:33,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 16.45/7.82 [2019-03-29 02:07:33,304 INFO L82 PathProgramCache]: Analyzing trace with hash 2368, now seen corresponding path program 2 times 16.45/7.82 [2019-03-29 02:07:33,304 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 16.45/7.82 [2019-03-29 02:07:33,305 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 16.45/7.82 [2019-03-29 02:07:33,306 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.45/7.82 [2019-03-29 02:07:33,306 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 16.45/7.82 [2019-03-29 02:07:33,306 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.45/7.82 [2019-03-29 02:07:33,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 16.45/7.82 [2019-03-29 02:07:33,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 16.45/7.82 [2019-03-29 02:07:33,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 16.45/7.82 [2019-03-29 02:07:33,311 INFO L82 PathProgramCache]: Analyzing trace with hash 74336679, now seen corresponding path program 1 times 16.45/7.82 [2019-03-29 02:07:33,311 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 16.45/7.82 [2019-03-29 02:07:33,311 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 16.45/7.82 [2019-03-29 02:07:33,312 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.45/7.82 [2019-03-29 02:07:33,313 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY 16.45/7.82 [2019-03-29 02:07:33,313 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.45/7.82 [2019-03-29 02:07:33,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 16.45/7.82 [2019-03-29 02:07:33,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 16.45/7.82 [2019-03-29 02:07:33,337 INFO L216 LassoAnalysis]: Preferences: 16.45/7.82 [2019-03-29 02:07:33,337 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 16.45/7.82 [2019-03-29 02:07:33,337 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 16.45/7.82 [2019-03-29 02:07:33,337 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 16.45/7.82 [2019-03-29 02:07:33,337 INFO L127 ssoRankerPreferences]: Use exernal solver: true 16.45/7.82 [2019-03-29 02:07:33,337 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 16.45/7.82 [2019-03-29 02:07:33,338 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 16.45/7.82 [2019-03-29 02:07:33,338 INFO L130 ssoRankerPreferences]: Path of dumped script: 16.45/7.82 [2019-03-29 02:07:33,338 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop 16.45/7.82 [2019-03-29 02:07:33,338 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 16.45/7.82 [2019-03-29 02:07:33,338 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 16.45/7.82 [2019-03-29 02:07:33,339 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 16.45/7.82 [2019-03-29 02:07:33,343 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 16.45/7.82 [2019-03-29 02:07:33,346 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 16.45/7.82 [2019-03-29 02:07:33,394 INFO L300 LassoAnalysis]: Preprocessing complete. 16.45/7.82 [2019-03-29 02:07:33,394 INFO L412 LassoAnalysis]: Checking for nontermination... 16.45/7.82 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 16.45/7.82 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 16.45/7.82 Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 16.45/7.82 [2019-03-29 02:07:33,397 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 16.45/7.82 [2019-03-29 02:07:33,397 INFO L163 nArgumentSynthesizer]: Using integer mode. 16.45/7.82 [2019-03-29 02:07:33,425 INFO L445 LassoAnalysis]: Proved nontermination for one component. 16.45/7.82 [2019-03-29 02:07:33,425 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: [] 16.45/7.82 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 16.45/7.82 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 16.45/7.82 Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 16.45/7.82 [2019-03-29 02:07:33,430 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 16.45/7.82 [2019-03-29 02:07:33,430 INFO L163 nArgumentSynthesizer]: Using integer mode. 16.45/7.82 [2019-03-29 02:07:33,458 INFO L445 LassoAnalysis]: Proved nontermination for one component. 16.45/7.82 [2019-03-29 02:07:33,458 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] 16.45/7.82 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 16.45/7.82 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 16.45/7.82 Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 16.45/7.82 [2019-03-29 02:07:33,463 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 16.45/7.82 [2019-03-29 02:07:33,463 INFO L163 nArgumentSynthesizer]: Using integer mode. 16.45/7.82 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 16.45/7.82 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 16.45/7.82 Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 16.45/7.82 [2019-03-29 02:07:33,493 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true 16.45/7.82 [2019-03-29 02:07:33,493 INFO L163 nArgumentSynthesizer]: Using integer mode. 16.45/7.82 [2019-03-29 02:07:33,703 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. 16.45/7.82 [2019-03-29 02:07:33,705 INFO L216 LassoAnalysis]: Preferences: 16.45/7.82 [2019-03-29 02:07:33,706 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 16.45/7.82 [2019-03-29 02:07:33,706 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 16.45/7.82 [2019-03-29 02:07:33,706 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 16.45/7.82 [2019-03-29 02:07:33,706 INFO L127 ssoRankerPreferences]: Use exernal solver: false 16.45/7.82 [2019-03-29 02:07:33,706 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 16.45/7.82 [2019-03-29 02:07:33,706 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 16.45/7.82 [2019-03-29 02:07:33,706 INFO L130 ssoRankerPreferences]: Path of dumped script: 16.45/7.82 [2019-03-29 02:07:33,706 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop 16.45/7.82 [2019-03-29 02:07:33,707 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 16.45/7.82 [2019-03-29 02:07:33,707 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 16.45/7.82 [2019-03-29 02:07:33,708 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 16.45/7.82 [2019-03-29 02:07:33,713 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 16.45/7.82 [2019-03-29 02:07:33,719 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 16.45/7.82 [2019-03-29 02:07:33,757 INFO L300 LassoAnalysis]: Preprocessing complete. 16.45/7.82 [2019-03-29 02:07:33,757 INFO L497 LassoAnalysis]: Using template 'affine'. 16.45/7.82 [2019-03-29 02:07:33,758 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 16.45/7.82 Termination analysis: LINEAR_WITH_GUESSES 16.45/7.82 Number of strict supporting invariants: 0 16.45/7.82 Number of non-strict supporting invariants: 1 16.45/7.82 Consider only non-deceasing supporting invariants: true 16.45/7.82 Simplify termination arguments: true 16.45/7.82 Simplify supporting invariants: trueOverapproximate stem: false 16.45/7.82 [2019-03-29 02:07:33,759 INFO L339 nArgumentSynthesizer]: Template has degree 0. 16.45/7.82 [2019-03-29 02:07:33,759 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 16.45/7.82 [2019-03-29 02:07:33,759 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 16.45/7.82 [2019-03-29 02:07:33,759 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 16.45/7.82 [2019-03-29 02:07:33,762 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. 16.45/7.82 [2019-03-29 02:07:33,762 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. 16.45/7.82 [2019-03-29 02:07:33,767 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. 16.45/7.82 [2019-03-29 02:07:33,768 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 16.45/7.82 Termination analysis: LINEAR_WITH_GUESSES 16.45/7.82 Number of strict supporting invariants: 0 16.45/7.82 Number of non-strict supporting invariants: 1 16.45/7.82 Consider only non-deceasing supporting invariants: true 16.45/7.82 Simplify termination arguments: true 16.45/7.82 Simplify supporting invariants: trueOverapproximate stem: false 16.45/7.82 [2019-03-29 02:07:33,768 INFO L339 nArgumentSynthesizer]: Template has degree 0. 16.45/7.82 [2019-03-29 02:07:33,769 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 16.45/7.82 [2019-03-29 02:07:33,769 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 16.45/7.82 [2019-03-29 02:07:33,769 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 16.45/7.82 [2019-03-29 02:07:33,769 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 16.45/7.82 [2019-03-29 02:07:33,770 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 16.45/7.82 [2019-03-29 02:07:33,770 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 16.45/7.82 [2019-03-29 02:07:33,774 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. 16.45/7.82 [2019-03-29 02:07:33,779 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. 16.45/7.82 [2019-03-29 02:07:33,779 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. 16.45/7.82 [2019-03-29 02:07:33,779 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... 16.45/7.82 [2019-03-29 02:07:33,779 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. 16.45/7.82 [2019-03-29 02:07:33,780 INFO L518 LassoAnalysis]: Proved termination. 16.45/7.82 [2019-03-29 02:07:33,780 INFO L520 LassoAnalysis]: Termination argument consisting of: 16.45/7.82 Ranking function f(ULTIMATE.start_main_~M~0, ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~M~0 - 1*ULTIMATE.start_main_~x~0 16.45/7.82 Supporting invariants [] 16.45/7.82 [2019-03-29 02:07:33,780 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed 16.45/7.82 [2019-03-29 02:07:33,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 16.45/7.82 [2019-03-29 02:07:33,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 16.45/7.82 [2019-03-29 02:07:33,800 INFO L256 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core 16.45/7.82 [2019-03-29 02:07:33,801 INFO L279 TraceCheckSpWp]: Computing forward predicates... 16.45/7.82 [2019-03-29 02:07:33,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 16.45/7.82 [2019-03-29 02:07:33,806 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core 16.45/7.82 [2019-03-29 02:07:33,807 INFO L279 TraceCheckSpWp]: Computing forward predicates... 16.45/7.82 [2019-03-29 02:07:33,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. 16.45/7.82 [2019-03-29 02:07:33,807 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization 16.45/7.82 [2019-03-29 02:07:33,808 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates 16.45/7.82 [2019-03-29 02:07:33,808 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 8 states and 14 transitions. cyclomatic complexity: 8 Second operand 3 states. 16.45/7.82 [2019-03-29 02:07:33,825 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 4 states. 16.45/7.82 [2019-03-29 02:07:33,826 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 16.45/7.82 [2019-03-29 02:07:33,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. 16.45/7.82 [2019-03-29 02:07:33,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. 16.45/7.82 [2019-03-29 02:07:33,827 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 3 letters. Loop has 2 letters. 16.45/7.82 [2019-03-29 02:07:33,827 INFO L116 BuchiAccepts]: Finished buchiAccepts. 16.45/7.82 [2019-03-29 02:07:33,827 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 2 letters. 16.45/7.82 [2019-03-29 02:07:33,828 INFO L116 BuchiAccepts]: Finished buchiAccepts. 16.45/7.82 [2019-03-29 02:07:33,828 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 3 letters. Loop has 4 letters. 16.45/7.82 [2019-03-29 02:07:33,828 INFO L116 BuchiAccepts]: Finished buchiAccepts. 16.45/7.82 [2019-03-29 02:07:33,829 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 20 transitions. 16.45/7.82 [2019-03-29 02:07:33,831 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 16.45/7.82 [2019-03-29 02:07:33,831 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 10 states and 18 transitions. 16.45/7.82 [2019-03-29 02:07:33,832 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 16.45/7.82 [2019-03-29 02:07:33,832 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 16.45/7.82 [2019-03-29 02:07:33,832 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 18 transitions. 16.45/7.82 [2019-03-29 02:07:33,832 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. 16.45/7.82 [2019-03-29 02:07:33,832 INFO L706 BuchiCegarLoop]: Abstraction has 10 states and 18 transitions. 16.45/7.82 [2019-03-29 02:07:33,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 18 transitions. 16.45/7.82 [2019-03-29 02:07:33,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 5. 16.45/7.82 [2019-03-29 02:07:33,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. 16.45/7.82 [2019-03-29 02:07:33,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 9 transitions. 16.45/7.82 [2019-03-29 02:07:33,834 INFO L729 BuchiCegarLoop]: Abstraction has 5 states and 9 transitions. 16.45/7.82 [2019-03-29 02:07:33,834 INFO L609 BuchiCegarLoop]: Abstraction has 5 states and 9 transitions. 16.45/7.82 [2019-03-29 02:07:33,834 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ 16.45/7.82 [2019-03-29 02:07:33,834 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 9 transitions. 16.45/7.82 [2019-03-29 02:07:33,834 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 16.45/7.82 [2019-03-29 02:07:33,835 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 16.45/7.82 [2019-03-29 02:07:33,835 INFO L119 BuchiIsEmpty]: Starting construction of run 16.45/7.82 [2019-03-29 02:07:33,835 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] 16.45/7.82 [2019-03-29 02:07:33,835 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] 16.45/7.82 [2019-03-29 02:07:33,835 INFO L794 eck$LassoCheckResult]: Stem: 111#ULTIMATE.startENTRY [48] ULTIMATE.startENTRY-->L19-2: Formula: (< 0 v_ULTIMATE.start_main_~M~0_12) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_6|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_~M~0=v_ULTIMATE.start_main_~M~0_12, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#res, ULTIMATE.start_main_~M~0, ULTIMATE.start_main_~x~0] 112#L19-2 16.45/7.82 [2019-03-29 02:07:33,836 INFO L796 eck$LassoCheckResult]: Loop: 112#L19-2 [45] L19-2-->L19: Formula: (< v_ULTIMATE.start_main_~M~0_11 v_ULTIMATE.start_main_~x~0_11) InVars {ULTIMATE.start_main_~M~0=v_ULTIMATE.start_main_~M~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} OutVars{ULTIMATE.start_main_~M~0=v_ULTIMATE.start_main_~M~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[] 114#L19 [38] L19-->L19-2: Formula: (and (< v_ULTIMATE.start_main_~M~0_1 v_ULTIMATE.start_main_~x~0_2) (= v_ULTIMATE.start_main_~x~0_1 0)) InVars {ULTIMATE.start_main_~M~0=v_ULTIMATE.start_main_~M~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_2} OutVars{ULTIMATE.start_main_~M~0=v_ULTIMATE.start_main_~M~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 112#L19-2 16.45/7.82 [2019-03-29 02:07:33,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 16.45/7.82 [2019-03-29 02:07:33,836 INFO L82 PathProgramCache]: Analyzing trace with hash 79, now seen corresponding path program 3 times 16.45/7.82 [2019-03-29 02:07:33,836 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 16.45/7.82 [2019-03-29 02:07:33,836 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 16.45/7.82 [2019-03-29 02:07:33,838 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.45/7.82 [2019-03-29 02:07:33,838 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 16.45/7.82 [2019-03-29 02:07:33,838 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.45/7.82 [2019-03-29 02:07:33,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 16.45/7.82 [2019-03-29 02:07:33,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 16.45/7.82 [2019-03-29 02:07:33,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 16.45/7.82 [2019-03-29 02:07:33,842 INFO L82 PathProgramCache]: Analyzing trace with hash 2394, now seen corresponding path program 1 times 16.45/7.82 [2019-03-29 02:07:33,842 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 16.45/7.82 [2019-03-29 02:07:33,842 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 16.45/7.82 [2019-03-29 02:07:33,843 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.45/7.82 [2019-03-29 02:07:33,844 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY 16.45/7.82 [2019-03-29 02:07:33,844 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.45/7.82 [2019-03-29 02:07:33,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 16.45/7.82 [2019-03-29 02:07:33,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 16.45/7.82 [2019-03-29 02:07:33,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 16.45/7.82 [2019-03-29 02:07:33,848 INFO L82 PathProgramCache]: Analyzing trace with hash 77352, now seen corresponding path program 2 times 16.45/7.82 [2019-03-29 02:07:33,848 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 16.45/7.82 [2019-03-29 02:07:33,848 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 16.45/7.82 [2019-03-29 02:07:33,849 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.45/7.82 [2019-03-29 02:07:33,850 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 16.45/7.82 [2019-03-29 02:07:33,850 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.45/7.82 [2019-03-29 02:07:33,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 16.45/7.82 [2019-03-29 02:07:33,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 16.45/7.82 [2019-03-29 02:07:33,872 INFO L216 LassoAnalysis]: Preferences: 16.45/7.82 [2019-03-29 02:07:33,872 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 16.45/7.82 [2019-03-29 02:07:33,873 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 16.45/7.82 [2019-03-29 02:07:33,873 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 16.45/7.82 [2019-03-29 02:07:33,873 INFO L127 ssoRankerPreferences]: Use exernal solver: true 16.45/7.82 [2019-03-29 02:07:33,873 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 16.45/7.82 [2019-03-29 02:07:33,873 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 16.45/7.82 [2019-03-29 02:07:33,873 INFO L130 ssoRankerPreferences]: Path of dumped script: 16.45/7.82 [2019-03-29 02:07:33,873 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Lasso 16.45/7.82 [2019-03-29 02:07:33,873 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 16.45/7.82 [2019-03-29 02:07:33,874 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 16.45/7.82 [2019-03-29 02:07:33,875 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 16.45/7.82 [2019-03-29 02:07:33,878 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 16.45/7.82 [2019-03-29 02:07:33,882 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 16.45/7.82 [2019-03-29 02:07:33,887 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 16.45/7.82 [2019-03-29 02:07:33,889 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 16.45/7.82 [2019-03-29 02:07:33,897 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 16.45/7.82 [2019-03-29 02:07:33,961 INFO L300 LassoAnalysis]: Preprocessing complete. 16.45/7.82 [2019-03-29 02:07:33,961 INFO L412 LassoAnalysis]: Checking for nontermination... 16.45/7.82 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 16.45/7.82 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 16.45/7.82 Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 16.45/7.82 [2019-03-29 02:07:33,973 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 16.45/7.82 [2019-03-29 02:07:33,973 INFO L163 nArgumentSynthesizer]: Using integer mode. 16.45/7.82 [2019-03-29 02:07:33,977 INFO L445 LassoAnalysis]: Proved nontermination for one component. 16.45/7.82 [2019-03-29 02:07:33,977 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 16.45/7.82 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 16.45/7.82 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 16.45/7.82 Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 16.45/7.82 [2019-03-29 02:07:34,011 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 16.45/7.82 [2019-03-29 02:07:34,011 INFO L163 nArgumentSynthesizer]: Using integer mode. 16.45/7.82 [2019-03-29 02:07:34,029 INFO L445 LassoAnalysis]: Proved nontermination for one component. 16.45/7.82 [2019-03-29 02:07:34,029 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 16.45/7.82 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 16.45/7.82 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 16.45/7.82 Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 16.45/7.82 [2019-03-29 02:07:34,059 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 16.45/7.82 [2019-03-29 02:07:34,060 INFO L163 nArgumentSynthesizer]: Using integer mode. 16.45/7.82 [2019-03-29 02:07:34,087 INFO L445 LassoAnalysis]: Proved nontermination for one component. 16.45/7.82 [2019-03-29 02:07:34,087 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_5=0} Honda state: {v_rep~unnamed0~0~false_5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 16.45/7.82 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 16.45/7.82 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 16.45/7.82 Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 16.45/7.82 [2019-03-29 02:07:34,092 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 16.45/7.82 [2019-03-29 02:07:34,092 INFO L163 nArgumentSynthesizer]: Using integer mode. 16.45/7.82 [2019-03-29 02:07:34,095 INFO L445 LassoAnalysis]: Proved nontermination for one component. 16.45/7.82 [2019-03-29 02:07:34,095 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1=0} Honda state: {ULTIMATE.start_main_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 16.45/7.82 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 16.45/7.82 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 16.45/7.82 Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 16.45/7.82 [2019-03-29 02:07:34,123 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 16.45/7.82 [2019-03-29 02:07:34,124 INFO L163 nArgumentSynthesizer]: Using integer mode. 16.45/7.82 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 16.45/7.82 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 16.45/7.82 Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 16.45/7.82 [2019-03-29 02:07:34,157 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true 16.45/7.82 [2019-03-29 02:07:34,157 INFO L163 nArgumentSynthesizer]: Using integer mode. 16.45/7.82 [2019-03-29 02:07:34,301 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. 16.45/7.82 [2019-03-29 02:07:34,303 INFO L216 LassoAnalysis]: Preferences: 16.45/7.82 [2019-03-29 02:07:34,304 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 16.45/7.82 [2019-03-29 02:07:34,304 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 16.45/7.82 [2019-03-29 02:07:34,304 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 16.45/7.82 [2019-03-29 02:07:34,304 INFO L127 ssoRankerPreferences]: Use exernal solver: false 16.45/7.82 [2019-03-29 02:07:34,304 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 16.45/7.82 [2019-03-29 02:07:34,304 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 16.45/7.82 [2019-03-29 02:07:34,304 INFO L130 ssoRankerPreferences]: Path of dumped script: 16.45/7.82 [2019-03-29 02:07:34,304 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Lasso 16.45/7.82 [2019-03-29 02:07:34,305 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 16.45/7.82 [2019-03-29 02:07:34,305 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 16.45/7.82 [2019-03-29 02:07:34,307 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 16.45/7.82 [2019-03-29 02:07:34,310 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 16.45/7.82 [2019-03-29 02:07:34,311 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 16.45/7.82 [2019-03-29 02:07:34,314 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 16.45/7.82 [2019-03-29 02:07:34,317 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 16.45/7.82 [2019-03-29 02:07:34,323 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 16.45/7.82 [2019-03-29 02:07:34,369 INFO L300 LassoAnalysis]: Preprocessing complete. 16.45/7.82 [2019-03-29 02:07:34,369 INFO L497 LassoAnalysis]: Using template 'affine'. 16.45/7.82 [2019-03-29 02:07:34,370 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 16.45/7.82 Termination analysis: LINEAR_WITH_GUESSES 16.45/7.82 Number of strict supporting invariants: 0 16.45/7.82 Number of non-strict supporting invariants: 1 16.45/7.82 Consider only non-deceasing supporting invariants: true 16.45/7.82 Simplify termination arguments: true 16.45/7.82 Simplify supporting invariants: trueOverapproximate stem: false 16.45/7.82 [2019-03-29 02:07:34,370 INFO L339 nArgumentSynthesizer]: Template has degree 0. 16.45/7.82 [2019-03-29 02:07:34,371 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 16.45/7.82 [2019-03-29 02:07:34,371 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 16.45/7.82 [2019-03-29 02:07:34,371 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 16.45/7.82 [2019-03-29 02:07:34,371 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 16.45/7.82 [2019-03-29 02:07:34,371 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 16.45/7.82 [2019-03-29 02:07:34,372 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 16.45/7.82 [2019-03-29 02:07:34,372 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. 16.45/7.82 [2019-03-29 02:07:34,373 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 16.45/7.82 Termination analysis: LINEAR_WITH_GUESSES 16.45/7.82 Number of strict supporting invariants: 0 16.45/7.82 Number of non-strict supporting invariants: 1 16.45/7.82 Consider only non-deceasing supporting invariants: true 16.45/7.82 Simplify termination arguments: true 16.45/7.82 Simplify supporting invariants: trueOverapproximate stem: false 16.45/7.82 [2019-03-29 02:07:34,374 INFO L339 nArgumentSynthesizer]: Template has degree 0. 16.45/7.82 [2019-03-29 02:07:34,374 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 16.45/7.82 [2019-03-29 02:07:34,374 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 16.45/7.82 [2019-03-29 02:07:34,374 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 16.45/7.82 [2019-03-29 02:07:34,374 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 16.45/7.82 [2019-03-29 02:07:34,375 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 16.45/7.82 [2019-03-29 02:07:34,375 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 16.45/7.82 [2019-03-29 02:07:34,375 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. 16.45/7.82 [2019-03-29 02:07:34,376 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 16.45/7.82 Termination analysis: LINEAR_WITH_GUESSES 16.45/7.82 Number of strict supporting invariants: 0 16.45/7.82 Number of non-strict supporting invariants: 1 16.45/7.82 Consider only non-deceasing supporting invariants: true 16.45/7.82 Simplify termination arguments: true 16.45/7.82 Simplify supporting invariants: trueOverapproximate stem: false 16.45/7.82 [2019-03-29 02:07:34,376 INFO L339 nArgumentSynthesizer]: Template has degree 0. 16.45/7.82 [2019-03-29 02:07:34,376 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 16.45/7.82 [2019-03-29 02:07:34,376 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 16.45/7.82 [2019-03-29 02:07:34,377 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 16.45/7.82 [2019-03-29 02:07:34,377 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 16.45/7.82 [2019-03-29 02:07:34,377 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 16.45/7.82 [2019-03-29 02:07:34,377 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 16.45/7.82 [2019-03-29 02:07:34,378 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. 16.45/7.82 [2019-03-29 02:07:34,378 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 16.45/7.82 Termination analysis: LINEAR_WITH_GUESSES 16.45/7.82 Number of strict supporting invariants: 0 16.45/7.82 Number of non-strict supporting invariants: 1 16.45/7.82 Consider only non-deceasing supporting invariants: true 16.45/7.82 Simplify termination arguments: true 16.45/7.82 Simplify supporting invariants: trueOverapproximate stem: false 16.45/7.82 [2019-03-29 02:07:34,379 INFO L339 nArgumentSynthesizer]: Template has degree 0. 16.45/7.82 [2019-03-29 02:07:34,379 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 16.45/7.82 [2019-03-29 02:07:34,379 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 16.45/7.82 [2019-03-29 02:07:34,379 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 16.45/7.82 [2019-03-29 02:07:34,381 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. 16.45/7.82 [2019-03-29 02:07:34,381 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. 16.45/7.82 [2019-03-29 02:07:34,385 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. 16.45/7.82 [2019-03-29 02:07:34,385 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 16.45/7.82 Termination analysis: LINEAR_WITH_GUESSES 16.45/7.82 Number of strict supporting invariants: 0 16.45/7.82 Number of non-strict supporting invariants: 1 16.45/7.82 Consider only non-deceasing supporting invariants: true 16.45/7.82 Simplify termination arguments: true 16.45/7.82 Simplify supporting invariants: trueOverapproximate stem: false 16.45/7.82 [2019-03-29 02:07:34,386 INFO L339 nArgumentSynthesizer]: Template has degree 0. 16.45/7.82 [2019-03-29 02:07:34,386 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 16.45/7.82 [2019-03-29 02:07:34,386 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 16.45/7.82 [2019-03-29 02:07:34,386 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 16.45/7.82 [2019-03-29 02:07:34,388 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. 16.45/7.82 [2019-03-29 02:07:34,389 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. 16.45/7.82 [2019-03-29 02:07:34,406 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. 16.45/7.82 [2019-03-29 02:07:34,418 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. 16.45/7.82 [2019-03-29 02:07:34,419 INFO L444 ModelExtractionUtils]: 5 out of 10 variables were initially zero. Simplification set additionally 1 variables to zero. 16.45/7.82 [2019-03-29 02:07:34,420 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... 16.45/7.82 [2019-03-29 02:07:34,422 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. 16.45/7.82 [2019-03-29 02:07:34,422 INFO L518 LassoAnalysis]: Proved termination. 16.45/7.82 [2019-03-29 02:07:34,422 INFO L520 LassoAnalysis]: Termination argument consisting of: 16.45/7.82 Ranking function f(ULTIMATE.start_main_~M~0, ULTIMATE.start_main_~x~0) = -1*ULTIMATE.start_main_~M~0 + 1*ULTIMATE.start_main_~x~0 16.45/7.82 Supporting invariants [1*ULTIMATE.start_main_~M~0 >= 0] 16.45/7.82 [2019-03-29 02:07:34,425 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed 16.45/7.82 [2019-03-29 02:07:34,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 16.45/7.82 [2019-03-29 02:07:34,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 16.45/7.82 [2019-03-29 02:07:34,463 WARN L254 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 3 conjunts are in the unsatisfiable core 16.45/7.82 [2019-03-29 02:07:34,463 INFO L279 TraceCheckSpWp]: Computing forward predicates... 16.45/7.82 [2019-03-29 02:07:34,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 16.45/7.82 [2019-03-29 02:07:34,467 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core 16.45/7.82 [2019-03-29 02:07:34,468 INFO L279 TraceCheckSpWp]: Computing forward predicates... 16.45/7.82 [2019-03-29 02:07:34,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. 16.45/7.82 [2019-03-29 02:07:34,522 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization 16.45/7.82 [2019-03-29 02:07:34,523 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates 16.45/7.82 [2019-03-29 02:07:34,523 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 5 states and 9 transitions. cyclomatic complexity: 5 Second operand 3 states. 16.45/7.82 [2019-03-29 02:07:34,624 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 5 states and 9 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 23 states and 45 transitions. Complement of second has 8 states. 16.45/7.82 [2019-03-29 02:07:34,624 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states 16.45/7.82 [2019-03-29 02:07:34,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. 16.45/7.82 [2019-03-29 02:07:34,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 18 transitions. 16.45/7.82 [2019-03-29 02:07:34,625 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 1 letters. Loop has 2 letters. 16.45/7.82 [2019-03-29 02:07:34,625 INFO L116 BuchiAccepts]: Finished buchiAccepts. 16.45/7.82 [2019-03-29 02:07:34,625 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 3 letters. Loop has 2 letters. 16.45/7.82 [2019-03-29 02:07:34,626 INFO L116 BuchiAccepts]: Finished buchiAccepts. 16.45/7.82 [2019-03-29 02:07:34,626 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 1 letters. Loop has 4 letters. 16.45/7.82 [2019-03-29 02:07:34,626 INFO L116 BuchiAccepts]: Finished buchiAccepts. 16.45/7.82 [2019-03-29 02:07:34,628 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 45 transitions. 16.45/7.82 [2019-03-29 02:07:34,629 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 16.45/7.82 [2019-03-29 02:07:34,630 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 13 states and 25 transitions. 16.45/7.82 [2019-03-29 02:07:34,630 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 16.45/7.82 [2019-03-29 02:07:34,630 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 16.45/7.82 [2019-03-29 02:07:34,631 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 25 transitions. 16.45/7.82 [2019-03-29 02:07:34,631 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. 16.45/7.82 [2019-03-29 02:07:34,631 INFO L706 BuchiCegarLoop]: Abstraction has 13 states and 25 transitions. 16.45/7.82 [2019-03-29 02:07:34,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 25 transitions. 16.45/7.82 [2019-03-29 02:07:34,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 9. 16.45/7.82 [2019-03-29 02:07:34,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. 16.45/7.82 [2019-03-29 02:07:34,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 17 transitions. 16.45/7.82 [2019-03-29 02:07:34,633 INFO L729 BuchiCegarLoop]: Abstraction has 9 states and 17 transitions. 16.45/7.82 [2019-03-29 02:07:34,633 INFO L609 BuchiCegarLoop]: Abstraction has 9 states and 17 transitions. 16.45/7.82 [2019-03-29 02:07:34,633 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ 16.45/7.82 [2019-03-29 02:07:34,633 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 17 transitions. 16.45/7.82 [2019-03-29 02:07:34,633 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 16.45/7.82 [2019-03-29 02:07:34,634 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 16.45/7.82 [2019-03-29 02:07:34,634 INFO L119 BuchiIsEmpty]: Starting construction of run 16.45/7.82 [2019-03-29 02:07:34,634 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] 16.45/7.82 [2019-03-29 02:07:34,634 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] 16.45/7.82 [2019-03-29 02:07:34,635 INFO L794 eck$LassoCheckResult]: Stem: 186#ULTIMATE.startENTRY [48] ULTIMATE.startENTRY-->L19-2: Formula: (< 0 v_ULTIMATE.start_main_~M~0_12) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_6|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_~M~0=v_ULTIMATE.start_main_~M~0_12, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#res, ULTIMATE.start_main_~M~0, ULTIMATE.start_main_~x~0] 187#L19-2 [44] L19-2-->L19: Formula: (> v_ULTIMATE.start_main_~M~0_11 v_ULTIMATE.start_main_~x~0_11) InVars {ULTIMATE.start_main_~M~0=v_ULTIMATE.start_main_~M~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} OutVars{ULTIMATE.start_main_~M~0=v_ULTIMATE.start_main_~M~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[] 188#L19 [43] L19-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_8 (+ v_ULTIMATE.start_main_~x~0_9 1)) (>= v_ULTIMATE.start_main_~M~0_7 v_ULTIMATE.start_main_~x~0_9)) InVars {ULTIMATE.start_main_~M~0=v_ULTIMATE.start_main_~M~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} OutVars{ULTIMATE.start_main_~M~0=v_ULTIMATE.start_main_~M~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 194#L19-2 [45] L19-2-->L19: Formula: (< v_ULTIMATE.start_main_~M~0_11 v_ULTIMATE.start_main_~x~0_11) InVars {ULTIMATE.start_main_~M~0=v_ULTIMATE.start_main_~M~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} OutVars{ULTIMATE.start_main_~M~0=v_ULTIMATE.start_main_~M~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[] 192#L19 16.45/7.82 [2019-03-29 02:07:34,635 INFO L796 eck$LassoCheckResult]: Loop: 192#L19 [38] L19-->L19-2: Formula: (and (< v_ULTIMATE.start_main_~M~0_1 v_ULTIMATE.start_main_~x~0_2) (= v_ULTIMATE.start_main_~x~0_1 0)) InVars {ULTIMATE.start_main_~M~0=v_ULTIMATE.start_main_~M~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_2} OutVars{ULTIMATE.start_main_~M~0=v_ULTIMATE.start_main_~M~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 193#L19-2 [45] L19-2-->L19: Formula: (< v_ULTIMATE.start_main_~M~0_11 v_ULTIMATE.start_main_~x~0_11) InVars {ULTIMATE.start_main_~M~0=v_ULTIMATE.start_main_~M~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} OutVars{ULTIMATE.start_main_~M~0=v_ULTIMATE.start_main_~M~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[] 192#L19 16.45/7.82 [2019-03-29 02:07:34,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 16.45/7.82 [2019-03-29 02:07:34,635 INFO L82 PathProgramCache]: Analyzing trace with hash 2397151, now seen corresponding path program 1 times 16.45/7.82 [2019-03-29 02:07:34,635 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 16.45/7.82 [2019-03-29 02:07:34,635 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 16.45/7.82 [2019-03-29 02:07:34,637 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.45/7.82 [2019-03-29 02:07:34,638 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY 16.45/7.82 [2019-03-29 02:07:34,638 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.45/7.82 [2019-03-29 02:07:34,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 16.45/7.82 [2019-03-29 02:07:34,661 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. 16.45/7.82 [2019-03-29 02:07:34,662 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. 16.45/7.82 [2019-03-29 02:07:34,662 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 16.45/7.82 [2019-03-29 02:07:34,662 INFO L799 eck$LassoCheckResult]: stem already infeasible 16.45/7.82 [2019-03-29 02:07:34,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 16.45/7.82 [2019-03-29 02:07:34,663 INFO L82 PathProgramCache]: Analyzing trace with hash 2184, now seen corresponding path program 2 times 16.45/7.82 [2019-03-29 02:07:34,663 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 16.45/7.82 [2019-03-29 02:07:34,663 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 16.45/7.82 [2019-03-29 02:07:34,664 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.45/7.82 [2019-03-29 02:07:34,664 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 16.45/7.82 [2019-03-29 02:07:34,664 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.45/7.82 [2019-03-29 02:07:34,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 16.45/7.82 [2019-03-29 02:07:34,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 16.45/7.82 [2019-03-29 02:07:34,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. 16.45/7.82 [2019-03-29 02:07:34,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 16.45/7.82 [2019-03-29 02:07:34,686 INFO L87 Difference]: Start difference. First operand 9 states and 17 transitions. cyclomatic complexity: 10 Second operand 4 states. 16.45/7.82 [2019-03-29 02:07:34,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. 16.45/7.82 [2019-03-29 02:07:34,703 INFO L93 Difference]: Finished difference Result 7 states and 11 transitions. 16.45/7.82 [2019-03-29 02:07:34,704 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 16.45/7.82 [2019-03-29 02:07:34,705 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7 states and 11 transitions. 16.45/7.82 [2019-03-29 02:07:34,705 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 16.45/7.82 [2019-03-29 02:07:34,706 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7 states to 0 states and 0 transitions. 16.45/7.82 [2019-03-29 02:07:34,706 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 16.45/7.82 [2019-03-29 02:07:34,706 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 16.45/7.82 [2019-03-29 02:07:34,706 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. 16.45/7.82 [2019-03-29 02:07:34,706 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. 16.45/7.82 [2019-03-29 02:07:34,706 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. 16.45/7.82 [2019-03-29 02:07:34,706 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. 16.45/7.82 [2019-03-29 02:07:34,707 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. 16.45/7.82 [2019-03-29 02:07:34,707 INFO L442 BuchiCegarLoop]: ======== Iteration 6============ 16.45/7.82 [2019-03-29 02:07:34,707 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. 16.45/7.82 [2019-03-29 02:07:34,707 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 16.45/7.82 [2019-03-29 02:07:34,707 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true 16.45/7.82 [2019-03-29 02:07:34,713 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.03 02:07:34 BasicIcfg 16.45/7.82 [2019-03-29 02:07:34,713 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- 16.45/7.82 [2019-03-29 02:07:34,714 INFO L168 Benchmark]: Toolchain (without parser) took 3243.47 ms. Allocated memory is still 649.6 MB. Free memory was 559.5 MB in the beginning and 360.8 MB in the end (delta: 198.7 MB). Peak memory consumption was 198.7 MB. Max. memory is 50.3 GB. 16.45/7.82 [2019-03-29 02:07:34,716 INFO L168 Benchmark]: CDTParser took 0.16 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. 16.45/7.82 [2019-03-29 02:07:34,716 INFO L168 Benchmark]: CACSL2BoogieTranslator took 226.24 ms. Allocated memory is still 649.6 MB. Free memory was 559.5 MB in the beginning and 549.5 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 50.3 GB. 16.45/7.82 [2019-03-29 02:07:34,717 INFO L168 Benchmark]: Boogie Procedure Inliner took 99.86 ms. Allocated memory is still 649.6 MB. Free memory was 549.5 MB in the beginning and 617.6 MB in the end (delta: -68.1 MB). Peak memory consumption was 20.2 MB. Max. memory is 50.3 GB. 16.45/7.82 [2019-03-29 02:07:34,717 INFO L168 Benchmark]: Boogie Preprocessor took 21.18 ms. Allocated memory is still 649.6 MB. Free memory was 616.5 MB in the beginning and 613.7 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 50.3 GB. 16.45/7.82 [2019-03-29 02:07:34,718 INFO L168 Benchmark]: RCFGBuilder took 202.82 ms. Allocated memory is still 649.6 MB. Free memory was 613.7 MB in the beginning and 601.3 MB in the end (delta: 12.4 MB). Peak memory consumption was 12.4 MB. Max. memory is 50.3 GB. 16.45/7.82 [2019-03-29 02:07:34,718 INFO L168 Benchmark]: BlockEncodingV2 took 88.15 ms. Allocated memory is still 649.6 MB. Free memory was 601.3 MB in the beginning and 594.8 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 50.3 GB. 16.45/7.82 [2019-03-29 02:07:34,719 INFO L168 Benchmark]: TraceAbstraction took 154.73 ms. Allocated memory is still 649.6 MB. Free memory was 593.7 MB in the beginning and 585.0 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.7 MB. Max. memory is 50.3 GB. 16.45/7.82 [2019-03-29 02:07:34,719 INFO L168 Benchmark]: BuchiAutomizer took 2445.16 ms. Allocated memory is still 649.6 MB. Free memory was 585.0 MB in the beginning and 360.8 MB in the end (delta: 224.2 MB). Peak memory consumption was 224.2 MB. Max. memory is 50.3 GB. 16.45/7.82 [2019-03-29 02:07:34,723 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### 16.45/7.82 --- Results --- 16.45/7.82 * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: 16.45/7.82 - StatisticsResult: Initial Icfg 16.45/7.82 8 locations, 11 edges 16.45/7.82 - StatisticsResult: Encoded RCFG 16.45/7.82 3 locations, 5 edges 16.45/7.82 * Results from de.uni_freiburg.informatik.ultimate.core: 16.45/7.82 - StatisticsResult: Toolchain Benchmarks 16.45/7.82 Benchmark results are: 16.45/7.82 * CDTParser took 0.16 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. 16.45/7.82 * CACSL2BoogieTranslator took 226.24 ms. Allocated memory is still 649.6 MB. Free memory was 559.5 MB in the beginning and 549.5 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 50.3 GB. 16.45/7.82 * Boogie Procedure Inliner took 99.86 ms. Allocated memory is still 649.6 MB. Free memory was 549.5 MB in the beginning and 617.6 MB in the end (delta: -68.1 MB). Peak memory consumption was 20.2 MB. Max. memory is 50.3 GB. 16.45/7.82 * Boogie Preprocessor took 21.18 ms. Allocated memory is still 649.6 MB. Free memory was 616.5 MB in the beginning and 613.7 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 50.3 GB. 16.45/7.82 * RCFGBuilder took 202.82 ms. Allocated memory is still 649.6 MB. Free memory was 613.7 MB in the beginning and 601.3 MB in the end (delta: 12.4 MB). Peak memory consumption was 12.4 MB. Max. memory is 50.3 GB. 16.45/7.82 * BlockEncodingV2 took 88.15 ms. Allocated memory is still 649.6 MB. Free memory was 601.3 MB in the beginning and 594.8 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 50.3 GB. 16.45/7.82 * TraceAbstraction took 154.73 ms. Allocated memory is still 649.6 MB. Free memory was 593.7 MB in the beginning and 585.0 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.7 MB. Max. memory is 50.3 GB. 16.45/7.82 * BuchiAutomizer took 2445.16 ms. Allocated memory is still 649.6 MB. Free memory was 585.0 MB in the beginning and 360.8 MB in the end (delta: 224.2 MB). Peak memory consumption was 224.2 MB. Max. memory is 50.3 GB. 16.45/7.82 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: 16.45/7.82 - AllSpecificationsHoldResult: All specifications hold 16.45/7.82 We were not able to verify any specifiation because the program does not contain any specification. 16.45/7.82 - InvariantResult [Line: 18]: Loop Invariant 16.45/7.82 Derived loop invariant: 1 16.45/7.82 - StatisticsResult: Ultimate Automizer benchmark data 16.45/7.82 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 16.45/7.82 - StatisticsResult: Constructed decomposition of program 16.45/7.82 Your program was decomposed into 5 terminating modules (2 trivial, 0 deterministic, 3 nondeterministic). One nondeterministic module has affine ranking function M + -1 * x and consists of 3 locations. One nondeterministic module has affine ranking function M + -1 * x and consists of 3 locations. One nondeterministic module has affine ranking function -1 * M + x and consists of 5 locations. 2 modules have a trivial ranking function, the largest among these consists of 4 locations. 16.45/7.82 - StatisticsResult: Timing statistics 16.45/7.82 BüchiAutomizer plugin needed 2.4s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 1.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 10 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 9 states and ocurred in iteration 4. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 10 SDtfs, 27 SDslu, 0 SDs, 0 SdLazy, 65 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT2 conc0 concLT0 SILN1 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital10 mio100 ax223 hnf100 lsp44 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq153 hnf93 smp100 dnf100 smp100 tf108 neg100 sie118 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 15ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 8 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.8s 16.45/7.82 - TerminationAnalysisResult: Termination proven 16.45/7.82 Buchi Automizer proved that your program is terminating 16.45/7.82 RESULT: Ultimate proved your program to be correct! 16.45/7.82 !SESSION 2019-03-29 02:07:28.148 ----------------------------------------------- 16.45/7.82 eclipse.buildId=unknown 16.45/7.82 java.version=1.8.0_181 16.45/7.82 java.vendor=Oracle Corporation 16.45/7.82 BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US 16.45/7.82 Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox/benchmark/theBenchmark.c 16.45/7.82 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 16.45/7.82 16.45/7.82 !ENTRY org.eclipse.core.resources 2 10035 2019-03-29 02:07:34.978 16.45/7.82 !MESSAGE The workspace will exit with unsaved changes in this session. 16.45/7.82 Received shutdown request... 16.45/7.82 Ultimate: 16.45/7.82 GTK+ Version Check 16.45/7.82 EOF