20.56/13.83 YES 20.56/13.83 20.56/13.84 Ultimate: Cannot open display: 20.56/13.84 This is Ultimate 0.1.24-8dc7c08-m 20.56/13.84 [2019-03-28 12:15:33,534 INFO L170 SettingsManager]: Resetting all preferences to default values... 20.56/13.84 [2019-03-28 12:15:33,536 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values 20.56/13.84 [2019-03-28 12:15:33,547 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 20.56/13.84 [2019-03-28 12:15:33,548 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values 20.56/13.84 [2019-03-28 12:15:33,549 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values 20.56/13.84 [2019-03-28 12:15:33,550 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values 20.56/13.84 [2019-03-28 12:15:33,552 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values 20.56/13.84 [2019-03-28 12:15:33,553 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values 20.56/13.84 [2019-03-28 12:15:33,554 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values 20.56/13.84 [2019-03-28 12:15:33,555 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 20.56/13.84 [2019-03-28 12:15:33,555 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values 20.56/13.84 [2019-03-28 12:15:33,556 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values 20.56/13.84 [2019-03-28 12:15:33,557 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values 20.56/13.84 [2019-03-28 12:15:33,558 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values 20.56/13.84 [2019-03-28 12:15:33,559 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values 20.56/13.84 [2019-03-28 12:15:33,560 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values 20.56/13.84 [2019-03-28 12:15:33,561 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values 20.56/13.84 [2019-03-28 12:15:33,563 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values 20.56/13.84 [2019-03-28 12:15:33,565 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values 20.56/13.84 [2019-03-28 12:15:33,566 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values 20.56/13.84 [2019-03-28 12:15:33,567 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values 20.56/13.84 [2019-03-28 12:15:33,569 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 20.56/13.84 [2019-03-28 12:15:33,569 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... 20.56/13.84 [2019-03-28 12:15:33,570 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values 20.56/13.84 [2019-03-28 12:15:33,570 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values 20.56/13.84 [2019-03-28 12:15:33,571 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values 20.56/13.84 [2019-03-28 12:15:33,572 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... 20.56/13.84 [2019-03-28 12:15:33,572 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values 20.56/13.84 [2019-03-28 12:15:33,573 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values 20.56/13.84 [2019-03-28 12:15:33,573 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values 20.56/13.84 [2019-03-28 12:15:33,574 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values 20.56/13.84 [2019-03-28 12:15:33,575 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... 20.56/13.84 [2019-03-28 12:15:33,575 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values 20.56/13.84 [2019-03-28 12:15:33,576 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 20.56/13.84 [2019-03-28 12:15:33,576 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... 20.56/13.84 [2019-03-28 12:15:33,576 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values 20.56/13.84 [2019-03-28 12:15:33,577 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values 20.56/13.84 [2019-03-28 12:15:33,578 INFO L181 SettingsManager]: Finished resetting all preferences to default values... 20.56/13.84 [2019-03-28 12:15:33,578 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf 20.56/13.84 [2019-03-28 12:15:33,593 INFO L110 SettingsManager]: Loading preferences was successful 20.56/13.84 [2019-03-28 12:15:33,593 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: 20.56/13.84 [2019-03-28 12:15:33,594 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: 20.56/13.84 [2019-03-28 12:15:33,595 INFO L133 SettingsManager]: * Rewrite not-equals=true 20.56/13.84 [2019-03-28 12:15:33,595 INFO L133 SettingsManager]: * Create parallel compositions if possible=false 20.56/13.84 [2019-03-28 12:15:33,595 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE 20.56/13.84 [2019-03-28 12:15:33,595 INFO L133 SettingsManager]: * Use SBE=true 20.56/13.84 [2019-03-28 12:15:33,595 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: 20.56/13.84 [2019-03-28 12:15:33,596 INFO L133 SettingsManager]: * Use old map elimination=false 20.56/13.84 [2019-03-28 12:15:33,596 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false 20.56/13.84 [2019-03-28 12:15:33,596 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION 20.56/13.84 [2019-03-28 12:15:33,596 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true 20.56/13.84 [2019-03-28 12:15:33,596 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES 20.56/13.84 [2019-03-28 12:15:33,596 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true 20.56/13.84 [2019-03-28 12:15:33,597 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 20.56/13.84 [2019-03-28 12:15:33,597 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: 20.56/13.84 [2019-03-28 12:15:33,597 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false 20.56/13.84 [2019-03-28 12:15:33,597 INFO L133 SettingsManager]: * Check division by zero=IGNORE 20.56/13.84 [2019-03-28 12:15:33,597 INFO L133 SettingsManager]: * Check if freed pointer was valid=false 20.56/13.84 [2019-03-28 12:15:33,598 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false 20.56/13.84 [2019-03-28 12:15:33,598 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE 20.56/13.84 [2019-03-28 12:15:33,598 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: 20.56/13.84 [2019-03-28 12:15:33,598 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements 20.56/13.84 [2019-03-28 12:15:33,598 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump 20.56/13.84 [2019-03-28 12:15:33,599 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 20.56/13.84 [2019-03-28 12:15:33,599 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: 20.56/13.84 [2019-03-28 12:15:33,599 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles 20.56/13.84 [2019-03-28 12:15:33,599 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL 20.56/13.84 [2019-03-28 12:15:33,599 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 20.56/13.84 [2019-03-28 12:15:33,626 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp 20.56/13.84 [2019-03-28 12:15:33,686 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized 20.56/13.84 [2019-03-28 12:15:33,690 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. 20.56/13.84 [2019-03-28 12:15:33,692 INFO L271 PluginConnector]: Initializing CDTParser... 20.56/13.84 [2019-03-28 12:15:33,692 INFO L276 PluginConnector]: CDTParser initialized 20.56/13.84 [2019-03-28 12:15:33,693 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c 20.56/13.84 [2019-03-28 12:15:33,767 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/b7e2150a8b314ecebcb41da3f55ddac5/FLAG06849f8be 20.56/13.84 [2019-03-28 12:15:34,336 INFO L307 CDTParser]: Found 1 translation units. 20.56/13.84 [2019-03-28 12:15:34,337 INFO L161 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c 20.56/13.84 [2019-03-28 12:15:34,343 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/b7e2150a8b314ecebcb41da3f55ddac5/FLAG06849f8be 20.56/13.84 [2019-03-28 12:15:34,736 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/b7e2150a8b314ecebcb41da3f55ddac5 20.56/13.84 [2019-03-28 12:15:34,748 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### 20.56/13.84 [2019-03-28 12:15:34,749 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. 20.56/13.84 [2019-03-28 12:15:34,750 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- 20.56/13.84 [2019-03-28 12:15:34,751 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... 20.56/13.84 [2019-03-28 12:15:34,754 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized 20.56/13.84 [2019-03-28 12:15:34,755 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.03 12:15:34" (1/1) ... 20.56/13.84 [2019-03-28 12:15:34,758 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12875703 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:15:34, skipping insertion in model container 20.56/13.84 [2019-03-28 12:15:34,759 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.03 12:15:34" (1/1) ... 20.56/13.84 [2019-03-28 12:15:34,767 INFO L145 MainTranslator]: Starting translation in SV-COMP mode 20.56/13.84 [2019-03-28 12:15:34,783 INFO L176 MainTranslator]: Built tables and reachable declarations 20.56/13.84 [2019-03-28 12:15:34,941 INFO L206 PostProcessor]: Analyzing one entry point: main 20.56/13.84 [2019-03-28 12:15:34,945 INFO L191 MainTranslator]: Completed pre-run 20.56/13.84 [2019-03-28 12:15:34,961 INFO L206 PostProcessor]: Analyzing one entry point: main 20.56/13.84 [2019-03-28 12:15:34,975 INFO L195 MainTranslator]: Completed translation 20.56/13.84 [2019-03-28 12:15:34,976 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:15:34 WrapperNode 20.56/13.84 [2019-03-28 12:15:34,976 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- 20.56/13.84 [2019-03-28 12:15:34,977 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- 20.56/13.84 [2019-03-28 12:15:34,977 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... 20.56/13.84 [2019-03-28 12:15:34,977 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized 20.56/13.84 [2019-03-28 12:15:35,043 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:15:34" (1/1) ... 20.56/13.84 [2019-03-28 12:15:35,049 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:15:34" (1/1) ... 20.56/13.84 [2019-03-28 12:15:35,068 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- 20.56/13.84 [2019-03-28 12:15:35,069 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- 20.56/13.84 [2019-03-28 12:15:35,069 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... 20.56/13.84 [2019-03-28 12:15:35,069 INFO L276 PluginConnector]: Boogie Preprocessor initialized 20.56/13.84 [2019-03-28 12:15:35,079 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:15:34" (1/1) ... 20.56/13.84 [2019-03-28 12:15:35,079 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:15:34" (1/1) ... 20.56/13.84 [2019-03-28 12:15:35,080 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:15:34" (1/1) ... 20.56/13.84 [2019-03-28 12:15:35,080 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:15:34" (1/1) ... 20.56/13.84 [2019-03-28 12:15:35,082 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:15:34" (1/1) ... 20.56/13.84 [2019-03-28 12:15:35,087 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:15:34" (1/1) ... 20.56/13.84 [2019-03-28 12:15:35,088 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:15:34" (1/1) ... 20.56/13.84 [2019-03-28 12:15:35,089 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- 20.56/13.84 [2019-03-28 12:15:35,090 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- 20.56/13.84 [2019-03-28 12:15:35,090 INFO L271 PluginConnector]: Initializing RCFGBuilder... 20.56/13.84 [2019-03-28 12:15:35,091 INFO L276 PluginConnector]: RCFGBuilder initialized 20.56/13.84 [2019-03-28 12:15:35,092 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:15:34" (1/1) ... 20.56/13.84 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 20.56/13.84 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) 20.56/13.84 Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 20.56/13.84 [2019-03-28 12:15:35,176 INFO L130 BoogieDeclarations]: Found specification of procedure rec 20.56/13.84 [2019-03-28 12:15:35,176 INFO L138 BoogieDeclarations]: Found implementation of procedure rec 20.56/13.84 [2019-03-28 12:15:35,176 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start 20.56/13.84 [2019-03-28 12:15:35,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start 20.56/13.84 [2019-03-28 12:15:35,323 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) 20.56/13.84 [2019-03-28 12:15:35,323 INFO L286 CfgBuilder]: Removed 6 assue(true) statements. 20.56/13.84 [2019-03-28 12:15:35,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 12:15:35 BoogieIcfgContainer 20.56/13.84 [2019-03-28 12:15:35,325 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- 20.56/13.84 [2019-03-28 12:15:35,325 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- 20.56/13.84 [2019-03-28 12:15:35,325 INFO L271 PluginConnector]: Initializing BlockEncodingV2... 20.56/13.84 [2019-03-28 12:15:35,327 INFO L276 PluginConnector]: BlockEncodingV2 initialized 20.56/13.84 [2019-03-28 12:15:35,328 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 12:15:35" (1/1) ... 20.56/13.84 [2019-03-28 12:15:35,346 INFO L313 BlockEncoder]: Initial Icfg 16 locations, 22 edges 20.56/13.84 [2019-03-28 12:15:35,348 INFO L258 BlockEncoder]: Using Remove infeasible edges 20.56/13.84 [2019-03-28 12:15:35,348 INFO L263 BlockEncoder]: Using Maximize final states 20.56/13.84 [2019-03-28 12:15:35,349 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false 20.56/13.84 [2019-03-28 12:15:35,349 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE 20.56/13.84 [2019-03-28 12:15:35,351 INFO L296 BlockEncoder]: Using Remove sink states 20.56/13.84 [2019-03-28 12:15:35,352 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true 20.56/13.84 [2019-03-28 12:15:35,352 INFO L179 BlockEncoder]: Using Rewrite not-equals 20.56/13.84 [2019-03-28 12:15:35,368 INFO L185 BlockEncoder]: Using Use SBE 20.56/13.84 [2019-03-28 12:15:35,383 INFO L200 BlockEncoder]: SBE split 1 edges 20.56/13.84 [2019-03-28 12:15:35,387 INFO L70 emoveInfeasibleEdges]: Removed 2 edges and 0 locations because of local infeasibility 20.56/13.84 [2019-03-28 12:15:35,389 INFO L71 MaximizeFinalStates]: 0 new accepting states 20.56/13.84 [2019-03-28 12:15:35,398 INFO L100 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding 20.56/13.84 [2019-03-28 12:15:35,400 INFO L70 RemoveSinkStates]: Removed 3 edges and 2 locations by removing sink states 20.56/13.84 [2019-03-28 12:15:35,402 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility 20.56/13.84 [2019-03-28 12:15:35,402 INFO L71 MaximizeFinalStates]: 0 new accepting states 20.56/13.84 [2019-03-28 12:15:35,404 INFO L100 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding 20.56/13.84 [2019-03-28 12:15:35,405 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states 20.56/13.84 [2019-03-28 12:15:35,405 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility 20.56/13.84 [2019-03-28 12:15:35,405 INFO L71 MaximizeFinalStates]: 0 new accepting states 20.56/13.84 [2019-03-28 12:15:35,405 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding 20.56/13.84 [2019-03-28 12:15:35,406 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states 20.56/13.84 [2019-03-28 12:15:35,406 INFO L313 BlockEncoder]: Encoded RCFG 11 locations, 15 edges 20.56/13.84 [2019-03-28 12:15:35,407 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 28.03 12:15:35 BasicIcfg 20.56/13.84 [2019-03-28 12:15:35,407 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- 20.56/13.84 [2019-03-28 12:15:35,408 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- 20.56/13.84 [2019-03-28 12:15:35,408 INFO L271 PluginConnector]: Initializing TraceAbstraction... 20.56/13.84 [2019-03-28 12:15:35,411 INFO L276 PluginConnector]: TraceAbstraction initialized 20.56/13.84 [2019-03-28 12:15:35,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.03 12:15:34" (1/4) ... 20.56/13.84 [2019-03-28 12:15:35,412 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@158d4aaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.03 12:15:35, skipping insertion in model container 20.56/13.84 [2019-03-28 12:15:35,413 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:15:34" (2/4) ... 20.56/13.84 [2019-03-28 12:15:35,413 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@158d4aaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.03 12:15:35, skipping insertion in model container 20.56/13.84 [2019-03-28 12:15:35,413 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 12:15:35" (3/4) ... 20.56/13.84 [2019-03-28 12:15:35,414 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@158d4aaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.03 12:15:35, skipping insertion in model container 20.56/13.84 [2019-03-28 12:15:35,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 28.03 12:15:35" (4/4) ... 20.56/13.84 [2019-03-28 12:15:35,415 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 20.56/13.84 [2019-03-28 12:15:35,425 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION 20.56/13.84 [2019-03-28 12:15:35,433 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. 20.56/13.84 [2019-03-28 12:15:35,451 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. 20.56/13.84 [2019-03-28 12:15:35,479 INFO L133 ementStrategyFactory]: Using default assertion order modulation 20.56/13.84 [2019-03-28 12:15:35,480 INFO L382 AbstractCegarLoop]: Interprodecural is true 20.56/13.84 [2019-03-28 12:15:35,480 INFO L383 AbstractCegarLoop]: Hoare is true 20.56/13.84 [2019-03-28 12:15:35,480 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates 20.56/13.84 [2019-03-28 12:15:35,480 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE 20.56/13.84 [2019-03-28 12:15:35,480 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION 20.56/13.84 [2019-03-28 12:15:35,480 INFO L387 AbstractCegarLoop]: Difference is false 20.56/13.84 [2019-03-28 12:15:35,481 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA 20.56/13.84 [2019-03-28 12:15:35,481 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== 20.56/13.84 [2019-03-28 12:15:35,498 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. 20.56/13.84 [2019-03-28 12:15:35,503 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. 20.56/13.84 [2019-03-28 12:15:35,509 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 11 states. 20.56/13.84 [2019-03-28 12:15:35,567 INFO L451 ceAbstractionStarter]: At program point recENTRY(lines 4 14) the Hoare annotation is: true 20.56/13.84 [2019-03-28 12:15:35,567 INFO L448 ceAbstractionStarter]: For program point recFINAL(lines 4 14) no Hoare annotation was computed. 20.56/13.84 [2019-03-28 12:15:35,567 INFO L451 ceAbstractionStarter]: At program point L8(line 8) the Hoare annotation is: true 20.56/13.84 [2019-03-28 12:15:35,567 INFO L448 ceAbstractionStarter]: For program point recEXIT(lines 4 14) no Hoare annotation was computed. 20.56/13.84 [2019-03-28 12:15:35,568 INFO L451 ceAbstractionStarter]: At program point L10-2(lines 10 11) the Hoare annotation is: true 20.56/13.84 [2019-03-28 12:15:35,568 INFO L448 ceAbstractionStarter]: For program point L8-1(line 8) no Hoare annotation was computed. 20.56/13.84 [2019-03-28 12:15:35,568 INFO L448 ceAbstractionStarter]: For program point L5(lines 5 13) no Hoare annotation was computed. 20.56/13.84 [2019-03-28 12:15:35,568 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. 20.56/13.84 [2019-03-28 12:15:35,568 INFO L451 ceAbstractionStarter]: At program point L20(line 20) the Hoare annotation is: true 20.56/13.84 [2019-03-28 12:15:35,568 INFO L448 ceAbstractionStarter]: For program point L20-1(line 20) no Hoare annotation was computed. 20.56/13.84 [2019-03-28 12:15:35,569 INFO L451 ceAbstractionStarter]: At program point L21-2(lines 21 22) the Hoare annotation is: true 20.56/13.84 [2019-03-28 12:15:35,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.03 12:15:35 BasicIcfg 20.56/13.84 [2019-03-28 12:15:35,577 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- 20.56/13.84 [2019-03-28 12:15:35,578 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- 20.56/13.84 [2019-03-28 12:15:35,578 INFO L271 PluginConnector]: Initializing BuchiAutomizer... 20.56/13.84 [2019-03-28 12:15:35,582 INFO L276 PluginConnector]: BuchiAutomizer initialized 20.56/13.84 [2019-03-28 12:15:35,583 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 20.56/13.84 [2019-03-28 12:15:35,583 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.03 12:15:34" (1/5) ... 20.56/13.84 [2019-03-28 12:15:35,584 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@738df96c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.03 12:15:35, skipping insertion in model container 20.56/13.84 [2019-03-28 12:15:35,584 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 20.56/13.84 [2019-03-28 12:15:35,584 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:15:34" (2/5) ... 20.56/13.84 [2019-03-28 12:15:35,584 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@738df96c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.03 12:15:35, skipping insertion in model container 20.56/13.84 [2019-03-28 12:15:35,584 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 20.56/13.84 [2019-03-28 12:15:35,585 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 12:15:35" (3/5) ... 20.56/13.84 [2019-03-28 12:15:35,585 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@738df96c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.03 12:15:35, skipping insertion in model container 20.56/13.84 [2019-03-28 12:15:35,585 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 20.56/13.84 [2019-03-28 12:15:35,585 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 28.03 12:15:35" (4/5) ... 20.56/13.84 [2019-03-28 12:15:35,586 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@738df96c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.03 12:15:35, skipping insertion in model container 20.56/13.84 [2019-03-28 12:15:35,586 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 20.56/13.84 [2019-03-28 12:15:35,586 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.03 12:15:35" (5/5) ... 20.56/13.84 [2019-03-28 12:15:35,587 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 20.56/13.84 [2019-03-28 12:15:35,617 INFO L133 ementStrategyFactory]: Using default assertion order modulation 20.56/13.84 [2019-03-28 12:15:35,617 INFO L374 BuchiCegarLoop]: Interprodecural is true 20.56/13.84 [2019-03-28 12:15:35,617 INFO L375 BuchiCegarLoop]: Hoare is true 20.56/13.84 [2019-03-28 12:15:35,617 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates 20.56/13.84 [2019-03-28 12:15:35,617 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE 20.56/13.84 [2019-03-28 12:15:35,617 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION 20.56/13.84 [2019-03-28 12:15:35,618 INFO L379 BuchiCegarLoop]: Difference is false 20.56/13.84 [2019-03-28 12:15:35,618 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA 20.56/13.84 [2019-03-28 12:15:35,618 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== 20.56/13.84 [2019-03-28 12:15:35,622 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. 20.56/13.84 [2019-03-28 12:15:35,642 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 5 20.56/13.84 [2019-03-28 12:15:35,643 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 20.56/13.84 [2019-03-28 12:15:35,643 INFO L119 BuchiIsEmpty]: Starting construction of run 20.56/13.84 [2019-03-28 12:15:35,650 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] 20.56/13.84 [2019-03-28 12:15:35,650 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] 20.56/13.84 [2019-03-28 12:15:35,650 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ 20.56/13.84 [2019-03-28 12:15:35,650 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. 20.56/13.84 [2019-03-28 12:15:35,652 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 5 20.56/13.84 [2019-03-28 12:15:35,652 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 20.56/13.84 [2019-03-28 12:15:35,652 INFO L119 BuchiIsEmpty]: Starting construction of run 20.56/13.84 [2019-03-28 12:15:35,652 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] 20.56/13.84 [2019-03-28 12:15:35,652 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] 20.56/13.84 [2019-03-28 12:15:35,657 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [78] ULTIMATE.startENTRY-->L20: Formula: (< 0 v_ULTIMATE.start_main_~i~0_8) InVars {} OutVars{ULTIMATE.start_main_~res~1=v_ULTIMATE.start_main_~res~1_5, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_5|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8, ULTIMATE.start_main_#t~ret3=|v_ULTIMATE.start_main_#t~ret3_6|} AuxVars[] AssignedVars[ULTIMATE.start_main_~res~1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_#t~ret3] 13#L20true [58] L20-->recENTRY: Formula: (= |v_rec_#in~aInParam_2| v_ULTIMATE.start_main_~i~0_7) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} OutVars{rec_#in~a=|v_rec_#in~aInParam_2|} AuxVars[] AssignedVars[rec_#in~a]< 3#recENTRYtrue 20.56/13.84 [2019-03-28 12:15:35,658 INFO L796 eck$LassoCheckResult]: Loop: 3#recENTRYtrue [48] recENTRY-->L5: Formula: (= v_rec_~a_1 |v_rec_#in~a_1|) InVars {rec_#in~a=|v_rec_#in~a_1|} OutVars{rec_~a=v_rec_~a_1, rec_#in~a=|v_rec_#in~a_1|} AuxVars[] AssignedVars[rec_~a] 10#L5true [74] L5-->L8: Formula: (< 0 v_rec_~a_3) InVars {rec_~a=v_rec_~a_3} OutVars{rec_~a=v_rec_~a_3} AuxVars[] AssignedVars[] 5#L8true [60] L8-->recENTRY: Formula: (= |v_rec_#in~aInParam_1| (+ v_rec_~a_5 (- 1))) InVars {rec_~a=v_rec_~a_5} OutVars{rec_#in~a=|v_rec_#in~aInParam_1|} AuxVars[] AssignedVars[rec_#in~a]< 3#recENTRYtrue 20.56/13.84 [2019-03-28 12:15:35,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 20.56/13.84 [2019-03-28 12:15:35,664 INFO L82 PathProgramCache]: Analyzing trace with hash 3437, now seen corresponding path program 1 times 20.56/13.84 [2019-03-28 12:15:35,666 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 20.56/13.84 [2019-03-28 12:15:35,667 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 20.56/13.84 [2019-03-28 12:15:35,687 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 20.56/13.84 [2019-03-28 12:15:35,687 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 20.56/13.84 [2019-03-28 12:15:35,688 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 20.56/13.84 [2019-03-28 12:15:35,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 20.56/13.84 [2019-03-28 12:15:35,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 20.56/13.84 [2019-03-28 12:15:35,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 20.56/13.84 [2019-03-28 12:15:35,740 INFO L82 PathProgramCache]: Analyzing trace with hash 78273, now seen corresponding path program 1 times 20.56/13.84 [2019-03-28 12:15:35,740 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 20.56/13.84 [2019-03-28 12:15:35,740 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 20.56/13.84 [2019-03-28 12:15:35,741 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 20.56/13.84 [2019-03-28 12:15:35,741 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 20.56/13.84 [2019-03-28 12:15:35,741 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 20.56/13.84 [2019-03-28 12:15:35,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 20.56/13.84 [2019-03-28 12:15:35,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 20.56/13.84 [2019-03-28 12:15:35,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 20.56/13.84 [2019-03-28 12:15:35,751 INFO L82 PathProgramCache]: Analyzing trace with hash 102440149, now seen corresponding path program 1 times 20.56/13.84 [2019-03-28 12:15:35,752 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 20.56/13.84 [2019-03-28 12:15:35,752 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 20.56/13.84 [2019-03-28 12:15:35,753 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 20.56/13.84 [2019-03-28 12:15:35,753 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 20.56/13.84 [2019-03-28 12:15:35,753 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 20.56/13.84 [2019-03-28 12:15:35,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 20.56/13.84 [2019-03-28 12:15:35,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 20.56/13.84 [2019-03-28 12:15:35,827 INFO L216 LassoAnalysis]: Preferences: 20.56/13.84 [2019-03-28 12:15:35,828 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 20.56/13.84 [2019-03-28 12:15:35,829 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 20.56/13.84 [2019-03-28 12:15:35,829 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 20.56/13.84 [2019-03-28 12:15:35,829 INFO L127 ssoRankerPreferences]: Use exernal solver: true 20.56/13.84 [2019-03-28 12:15:35,829 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 20.56/13.84 [2019-03-28 12:15:35,829 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 20.56/13.84 [2019-03-28 12:15:35,829 INFO L130 ssoRankerPreferences]: Path of dumped script: 20.56/13.84 [2019-03-28 12:15:35,830 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop 20.56/13.84 [2019-03-28 12:15:35,830 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 20.56/13.84 [2019-03-28 12:15:35,830 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 20.56/13.84 [2019-03-28 12:15:35,848 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 20.56/13.84 [2019-03-28 12:15:35,856 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 20.56/13.84 [2019-03-28 12:15:35,858 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 20.56/13.84 [2019-03-28 12:15:35,861 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 20.56/13.84 [2019-03-28 12:15:35,863 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 20.56/13.84 [2019-03-28 12:15:35,866 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 20.56/13.84 [2019-03-28 12:15:35,877 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 20.56/13.84 [2019-03-28 12:15:35,936 INFO L300 LassoAnalysis]: Preprocessing complete. 20.56/13.84 [2019-03-28 12:15:35,937 INFO L412 LassoAnalysis]: Checking for nontermination... 20.56/13.84 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 20.56/13.84 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 20.56/13.84 Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 20.56/13.84 [2019-03-28 12:15:35,943 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 20.56/13.84 [2019-03-28 12:15:35,944 INFO L163 nArgumentSynthesizer]: Using integer mode. 20.56/13.84 [2019-03-28 12:15:35,953 INFO L445 LassoAnalysis]: Proved nontermination for one component. 20.56/13.84 [2019-03-28 12:15:35,953 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_#t~ret0=0} Honda state: {rec_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 20.56/13.84 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 20.56/13.84 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 20.56/13.84 Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 20.56/13.84 [2019-03-28 12:15:35,981 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 20.56/13.84 [2019-03-28 12:15:35,981 INFO L163 nArgumentSynthesizer]: Using integer mode. 20.56/13.84 [2019-03-28 12:15:35,985 INFO L445 LassoAnalysis]: Proved nontermination for one component. 20.56/13.84 [2019-03-28 12:15:35,985 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_#t~post1=0} Honda state: {rec_#t~post1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 20.56/13.84 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 20.56/13.84 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 20.56/13.84 Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 20.56/13.84 [2019-03-28 12:15:36,012 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 20.56/13.84 [2019-03-28 12:15:36,013 INFO L163 nArgumentSynthesizer]: Using integer mode. 20.56/13.84 [2019-03-28 12:15:36,016 INFO L445 LassoAnalysis]: Proved nontermination for one component. 20.56/13.84 [2019-03-28 12:15:36,016 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_~res~0=0} Honda state: {rec_~res~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 20.56/13.84 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 20.56/13.84 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 20.56/13.84 Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 20.56/13.84 [2019-03-28 12:15:36,043 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 20.56/13.84 [2019-03-28 12:15:36,043 INFO L163 nArgumentSynthesizer]: Using integer mode. 20.56/13.84 [2019-03-28 12:15:36,047 INFO L445 LassoAnalysis]: Proved nontermination for one component. 20.56/13.84 [2019-03-28 12:15:36,047 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_#res=0} Honda state: {rec_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 20.56/13.84 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 20.56/13.84 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 20.56/13.84 Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 20.56/13.84 [2019-03-28 12:15:36,075 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 20.56/13.84 [2019-03-28 12:15:36,075 INFO L163 nArgumentSynthesizer]: Using integer mode. 20.56/13.84 [2019-03-28 12:15:36,079 INFO L445 LassoAnalysis]: Proved nontermination for one component. 20.56/13.84 [2019-03-28 12:15:36,079 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_~a=0} Honda state: {rec_~a=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 20.56/13.84 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 20.56/13.84 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 20.56/13.84 Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 20.56/13.84 [2019-03-28 12:15:36,106 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 20.56/13.84 [2019-03-28 12:15:36,106 INFO L163 nArgumentSynthesizer]: Using integer mode. 20.56/13.84 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 20.56/13.84 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 20.56/13.84 Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 20.56/13.84 [2019-03-28 12:15:36,136 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true 20.56/13.84 [2019-03-28 12:15:36,136 INFO L163 nArgumentSynthesizer]: Using integer mode. 20.56/13.84 [2019-03-28 12:15:36,167 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. 20.56/13.84 [2019-03-28 12:15:36,169 INFO L216 LassoAnalysis]: Preferences: 20.56/13.84 [2019-03-28 12:15:36,169 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 20.56/13.84 [2019-03-28 12:15:36,169 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 20.56/13.84 [2019-03-28 12:15:36,169 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 20.56/13.84 [2019-03-28 12:15:36,169 INFO L127 ssoRankerPreferences]: Use exernal solver: false 20.56/13.84 [2019-03-28 12:15:36,170 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 20.56/13.84 [2019-03-28 12:15:36,170 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 20.56/13.84 [2019-03-28 12:15:36,170 INFO L130 ssoRankerPreferences]: Path of dumped script: 20.56/13.84 [2019-03-28 12:15:36,170 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop 20.56/13.84 [2019-03-28 12:15:36,170 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 20.56/13.84 [2019-03-28 12:15:36,170 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 20.56/13.84 [2019-03-28 12:15:36,172 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 20.56/13.84 [2019-03-28 12:15:36,175 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 20.56/13.84 [2019-03-28 12:15:36,177 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 20.56/13.84 [2019-03-28 12:15:36,179 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 20.56/13.84 [2019-03-28 12:15:36,184 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 20.56/13.84 [2019-03-28 12:15:36,191 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 20.56/13.84 [2019-03-28 12:15:36,194 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 20.56/13.84 [2019-03-28 12:15:36,247 INFO L300 LassoAnalysis]: Preprocessing complete. 20.56/13.84 [2019-03-28 12:15:36,253 INFO L497 LassoAnalysis]: Using template 'affine'. 20.56/13.84 [2019-03-28 12:15:36,255 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 20.56/13.84 Termination analysis: LINEAR_WITH_GUESSES 20.56/13.84 Number of strict supporting invariants: 0 20.56/13.84 Number of non-strict supporting invariants: 1 20.56/13.84 Consider only non-deceasing supporting invariants: true 20.56/13.84 Simplify termination arguments: true 20.56/13.84 Simplify supporting invariants: trueOverapproximate stem: false 20.56/13.84 [2019-03-28 12:15:36,256 INFO L339 nArgumentSynthesizer]: Template has degree 0. 20.56/13.84 [2019-03-28 12:15:36,256 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 20.56/13.84 [2019-03-28 12:15:36,257 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 20.56/13.84 [2019-03-28 12:15:36,257 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 20.56/13.84 [2019-03-28 12:15:36,257 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 20.56/13.84 [2019-03-28 12:15:36,259 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 20.56/13.84 [2019-03-28 12:15:36,260 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 20.56/13.84 [2019-03-28 12:15:36,264 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. 20.56/13.84 [2019-03-28 12:15:36,264 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 20.56/13.84 Termination analysis: LINEAR_WITH_GUESSES 20.56/13.84 Number of strict supporting invariants: 0 20.56/13.84 Number of non-strict supporting invariants: 1 20.56/13.84 Consider only non-deceasing supporting invariants: true 20.56/13.84 Simplify termination arguments: true 20.56/13.84 Simplify supporting invariants: trueOverapproximate stem: false 20.56/13.84 [2019-03-28 12:15:36,265 INFO L339 nArgumentSynthesizer]: Template has degree 0. 20.56/13.84 [2019-03-28 12:15:36,265 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 20.56/13.84 [2019-03-28 12:15:36,265 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 20.56/13.84 [2019-03-28 12:15:36,266 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 20.56/13.84 [2019-03-28 12:15:36,266 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 20.56/13.84 [2019-03-28 12:15:36,267 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 20.56/13.84 [2019-03-28 12:15:36,267 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 20.56/13.84 [2019-03-28 12:15:36,268 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. 20.56/13.84 [2019-03-28 12:15:36,269 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 20.56/13.84 Termination analysis: LINEAR_WITH_GUESSES 20.56/13.84 Number of strict supporting invariants: 0 20.56/13.84 Number of non-strict supporting invariants: 1 20.56/13.84 Consider only non-deceasing supporting invariants: true 20.56/13.84 Simplify termination arguments: true 20.56/13.84 Simplify supporting invariants: trueOverapproximate stem: false 20.56/13.84 [2019-03-28 12:15:36,269 INFO L339 nArgumentSynthesizer]: Template has degree 0. 20.56/13.84 [2019-03-28 12:15:36,269 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 20.56/13.84 [2019-03-28 12:15:36,270 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 20.56/13.84 [2019-03-28 12:15:36,270 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 20.56/13.84 [2019-03-28 12:15:36,270 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 20.56/13.84 [2019-03-28 12:15:36,271 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 20.56/13.84 [2019-03-28 12:15:36,271 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 20.56/13.84 [2019-03-28 12:15:36,272 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. 20.56/13.84 [2019-03-28 12:15:36,273 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 20.56/13.84 Termination analysis: LINEAR_WITH_GUESSES 20.56/13.84 Number of strict supporting invariants: 0 20.56/13.84 Number of non-strict supporting invariants: 1 20.56/13.84 Consider only non-deceasing supporting invariants: true 20.56/13.84 Simplify termination arguments: true 20.56/13.84 Simplify supporting invariants: trueOverapproximate stem: false 20.56/13.84 [2019-03-28 12:15:36,273 INFO L339 nArgumentSynthesizer]: Template has degree 0. 20.56/13.84 [2019-03-28 12:15:36,273 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 20.56/13.84 [2019-03-28 12:15:36,273 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 20.56/13.84 [2019-03-28 12:15:36,274 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 20.56/13.84 [2019-03-28 12:15:36,274 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 20.56/13.84 [2019-03-28 12:15:36,274 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 20.56/13.84 [2019-03-28 12:15:36,275 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 20.56/13.84 [2019-03-28 12:15:36,276 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. 20.56/13.84 [2019-03-28 12:15:36,276 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 20.56/13.84 Termination analysis: LINEAR_WITH_GUESSES 20.56/13.84 Number of strict supporting invariants: 0 20.56/13.84 Number of non-strict supporting invariants: 1 20.56/13.84 Consider only non-deceasing supporting invariants: true 20.56/13.84 Simplify termination arguments: true 20.56/13.84 Simplify supporting invariants: trueOverapproximate stem: false 20.56/13.84 [2019-03-28 12:15:36,277 INFO L339 nArgumentSynthesizer]: Template has degree 0. 20.56/13.84 [2019-03-28 12:15:36,277 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 20.56/13.84 [2019-03-28 12:15:36,277 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 20.56/13.84 [2019-03-28 12:15:36,278 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 20.56/13.84 [2019-03-28 12:15:36,278 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 20.56/13.84 [2019-03-28 12:15:36,279 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 20.56/13.84 [2019-03-28 12:15:36,279 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 20.56/13.84 [2019-03-28 12:15:36,285 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. 20.56/13.84 [2019-03-28 12:15:36,289 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. 20.56/13.84 [2019-03-28 12:15:36,289 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. 20.56/13.84 [2019-03-28 12:15:36,292 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... 20.56/13.84 [2019-03-28 12:15:36,292 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. 20.56/13.84 [2019-03-28 12:15:36,292 INFO L518 LassoAnalysis]: Proved termination. 20.56/13.84 [2019-03-28 12:15:36,293 INFO L520 LassoAnalysis]: Termination argument consisting of: 20.56/13.84 Ranking function f(rec_#in~a) = 1*rec_#in~a 20.56/13.84 Supporting invariants [] 20.56/13.84 [2019-03-28 12:15:36,294 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed 20.56/13.84 [2019-03-28 12:15:36,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 20.56/13.84 [2019-03-28 12:15:36,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 20.56/13.84 [2019-03-28 12:15:36,346 INFO L256 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 4 conjunts are in the unsatisfiable core 20.56/13.84 [2019-03-28 12:15:36,348 INFO L279 TraceCheckSpWp]: Computing forward predicates... 20.56/13.84 [2019-03-28 12:15:36,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 20.56/13.84 [2019-03-28 12:15:36,375 INFO L256 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 7 conjunts are in the unsatisfiable core 20.56/13.84 [2019-03-28 12:15:36,376 INFO L279 TraceCheckSpWp]: Computing forward predicates... 20.56/13.84 [2019-03-28 12:15:36,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. 20.56/13.84 [2019-03-28 12:15:36,444 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization 20.56/13.84 [2019-03-28 12:15:36,449 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 20.56/13.84 [2019-03-28 12:15:36,451 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 11 states. Second operand 4 states. 20.56/13.84 [2019-03-28 12:15:36,560 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 11 states.. Second operand 4 states. Result 66 states and 101 transitions. Complement of second has 24 states. 20.56/13.84 [2019-03-28 12:15:36,561 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states 20.56/13.84 [2019-03-28 12:15:36,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. 20.56/13.84 [2019-03-28 12:15:36,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 30 transitions. 20.56/13.84 [2019-03-28 12:15:36,567 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 30 transitions. Stem has 2 letters. Loop has 3 letters. 20.56/13.84 [2019-03-28 12:15:36,568 INFO L116 BuchiAccepts]: Finished buchiAccepts. 20.56/13.84 [2019-03-28 12:15:36,569 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 30 transitions. Stem has 5 letters. Loop has 3 letters. 20.56/13.84 [2019-03-28 12:15:36,569 INFO L116 BuchiAccepts]: Finished buchiAccepts. 20.56/13.84 [2019-03-28 12:15:36,569 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 30 transitions. Stem has 2 letters. Loop has 6 letters. 20.56/13.84 [2019-03-28 12:15:36,570 INFO L116 BuchiAccepts]: Finished buchiAccepts. 20.56/13.84 [2019-03-28 12:15:36,576 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 66 states and 101 transitions. 20.56/13.84 [2019-03-28 12:15:36,583 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 8 20.56/13.84 [2019-03-28 12:15:36,592 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 66 states to 45 states and 74 transitions. 20.56/13.84 [2019-03-28 12:15:36,593 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 32 20.56/13.84 [2019-03-28 12:15:36,593 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 34 20.56/13.84 [2019-03-28 12:15:36,594 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 74 transitions. 20.56/13.84 [2019-03-28 12:15:36,594 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. 20.56/13.84 [2019-03-28 12:15:36,594 INFO L706 BuchiCegarLoop]: Abstraction has 45 states and 74 transitions. 20.56/13.84 [2019-03-28 12:15:36,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states and 74 transitions. 20.56/13.84 [2019-03-28 12:15:36,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 37. 20.56/13.84 [2019-03-28 12:15:36,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. 20.56/13.84 [2019-03-28 12:15:36,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 56 transitions. 20.56/13.84 [2019-03-28 12:15:36,634 INFO L729 BuchiCegarLoop]: Abstraction has 37 states and 56 transitions. 20.56/13.84 [2019-03-28 12:15:36,635 INFO L609 BuchiCegarLoop]: Abstraction has 37 states and 56 transitions. 20.56/13.84 [2019-03-28 12:15:36,635 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ 20.56/13.84 [2019-03-28 12:15:36,635 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 37 states and 56 transitions. 20.56/13.84 [2019-03-28 12:15:36,637 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 8 20.56/13.84 [2019-03-28 12:15:36,637 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 20.56/13.84 [2019-03-28 12:15:36,638 INFO L119 BuchiIsEmpty]: Starting construction of run 20.56/13.84 [2019-03-28 12:15:36,638 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] 20.56/13.84 [2019-03-28 12:15:36,638 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] 20.56/13.84 [2019-03-28 12:15:36,638 INFO L794 eck$LassoCheckResult]: Stem: 155#ULTIMATE.startENTRY [78] ULTIMATE.startENTRY-->L20: Formula: (< 0 v_ULTIMATE.start_main_~i~0_8) InVars {} OutVars{ULTIMATE.start_main_~res~1=v_ULTIMATE.start_main_~res~1_5, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_5|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8, ULTIMATE.start_main_#t~ret3=|v_ULTIMATE.start_main_#t~ret3_6|} AuxVars[] AssignedVars[ULTIMATE.start_main_~res~1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_#t~ret3] 148#L20 [58] L20-->recENTRY: Formula: (= |v_rec_#in~aInParam_2| v_ULTIMATE.start_main_~i~0_7) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} OutVars{rec_#in~a=|v_rec_#in~aInParam_2|} AuxVars[] AssignedVars[rec_#in~a]< 164#recENTRY [48] recENTRY-->L5: Formula: (= v_rec_~a_1 |v_rec_#in~a_1|) InVars {rec_#in~a=|v_rec_#in~a_1|} OutVars{rec_~a=v_rec_~a_1, rec_#in~a=|v_rec_#in~a_1|} AuxVars[] AssignedVars[rec_~a] 167#L5 [75] L5-->L8: Formula: (> 0 v_rec_~a_3) InVars {rec_~a=v_rec_~a_3} OutVars{rec_~a=v_rec_~a_3} AuxVars[] AssignedVars[] 143#L8 20.56/13.84 [2019-03-28 12:15:36,639 INFO L796 eck$LassoCheckResult]: Loop: 143#L8 [60] L8-->recENTRY: Formula: (= |v_rec_#in~aInParam_1| (+ v_rec_~a_5 (- 1))) InVars {rec_~a=v_rec_~a_5} OutVars{rec_#in~a=|v_rec_#in~aInParam_1|} AuxVars[] AssignedVars[rec_#in~a]< 142#recENTRY [48] recENTRY-->L5: Formula: (= v_rec_~a_1 |v_rec_#in~a_1|) InVars {rec_#in~a=|v_rec_#in~a_1|} OutVars{rec_~a=v_rec_~a_1, rec_#in~a=|v_rec_#in~a_1|} AuxVars[] AssignedVars[rec_~a] 144#L5 [75] L5-->L8: Formula: (> 0 v_rec_~a_3) InVars {rec_~a=v_rec_~a_3} OutVars{rec_~a=v_rec_~a_3} AuxVars[] AssignedVars[] 143#L8 20.56/13.84 [2019-03-28 12:15:36,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 20.56/13.84 [2019-03-28 12:15:36,639 INFO L82 PathProgramCache]: Analyzing trace with hash 3304520, now seen corresponding path program 1 times 20.56/13.84 [2019-03-28 12:15:36,639 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 20.56/13.84 [2019-03-28 12:15:36,639 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 20.56/13.84 [2019-03-28 12:15:36,640 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 20.56/13.84 [2019-03-28 12:15:36,641 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 20.56/13.84 [2019-03-28 12:15:36,641 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 20.56/13.84 [2019-03-28 12:15:36,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 20.56/13.84 [2019-03-28 12:15:36,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. 20.56/13.84 [2019-03-28 12:15:36,689 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. 20.56/13.84 [2019-03-28 12:15:36,689 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 20.56/13.84 [2019-03-28 12:15:36,692 INFO L799 eck$LassoCheckResult]: stem already infeasible 20.56/13.84 [2019-03-28 12:15:36,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 20.56/13.84 [2019-03-28 12:15:36,692 INFO L82 PathProgramCache]: Analyzing trace with hash 89014, now seen corresponding path program 1 times 20.56/13.84 [2019-03-28 12:15:36,692 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 20.56/13.84 [2019-03-28 12:15:36,692 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 20.56/13.84 [2019-03-28 12:15:36,693 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 20.56/13.84 [2019-03-28 12:15:36,694 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 20.56/13.84 [2019-03-28 12:15:36,694 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 20.56/13.84 [2019-03-28 12:15:36,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 20.56/13.84 [2019-03-28 12:15:36,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 20.56/13.84 [2019-03-28 12:15:36,742 INFO L216 LassoAnalysis]: Preferences: 20.56/13.84 [2019-03-28 12:15:36,742 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 20.56/13.84 [2019-03-28 12:15:36,742 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 20.56/13.84 [2019-03-28 12:15:36,742 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 20.56/13.84 [2019-03-28 12:15:36,743 INFO L127 ssoRankerPreferences]: Use exernal solver: true 20.56/13.84 [2019-03-28 12:15:36,743 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 20.56/13.84 [2019-03-28 12:15:36,743 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 20.56/13.84 [2019-03-28 12:15:36,743 INFO L130 ssoRankerPreferences]: Path of dumped script: 20.56/13.84 [2019-03-28 12:15:36,743 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop 20.56/13.84 [2019-03-28 12:15:36,743 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 20.56/13.84 [2019-03-28 12:15:36,743 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 20.56/13.84 [2019-03-28 12:15:36,745 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 20.56/13.84 [2019-03-28 12:15:36,755 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 20.56/13.84 [2019-03-28 12:15:36,757 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 20.56/13.84 [2019-03-28 12:15:36,760 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 20.56/13.84 [2019-03-28 12:15:36,762 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 20.56/13.84 [2019-03-28 12:15:36,764 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 20.56/13.84 [2019-03-28 12:15:36,809 INFO L300 LassoAnalysis]: Preprocessing complete. 20.56/13.84 [2019-03-28 12:15:36,809 INFO L412 LassoAnalysis]: Checking for nontermination... 20.56/13.84 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 20.56/13.84 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 20.56/13.84 Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 20.56/13.84 [2019-03-28 12:15:36,817 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 20.56/13.84 [2019-03-28 12:15:36,817 INFO L163 nArgumentSynthesizer]: Using integer mode. 20.56/13.84 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 20.56/13.84 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 20.56/13.84 Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 20.56/13.84 [2019-03-28 12:15:36,854 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true 20.56/13.84 [2019-03-28 12:15:36,854 INFO L163 nArgumentSynthesizer]: Using integer mode. 20.56/13.84 [2019-03-28 12:15:37,048 INFO L445 LassoAnalysis]: Proved nontermination for one component. 20.56/13.84 [2019-03-28 12:15:37,048 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_~a=-8, rec_#in~a=0} Honda state: {rec_~a=-8, rec_#in~a=0} Generalized eigenvectors: [{rec_~a=-1, rec_#in~a=-2}, {rec_~a=0, rec_#in~a=1}, {rec_~a=0, rec_#in~a=-8}] Lambdas: [1, 8, 0] Nus: [1, 1] 20.56/13.84 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 20.56/13.84 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 20.56/13.84 Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 20.56/13.84 [2019-03-28 12:15:37,078 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 20.56/13.84 [2019-03-28 12:15:37,078 INFO L163 nArgumentSynthesizer]: Using integer mode. 20.56/13.84 [2019-03-28 12:15:37,082 INFO L445 LassoAnalysis]: Proved nontermination for one component. 20.56/13.84 [2019-03-28 12:15:37,082 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_~res~0=0} Honda state: {rec_~res~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 20.56/13.84 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 20.56/13.84 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 20.56/13.84 Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 20.56/13.84 [2019-03-28 12:15:37,113 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 20.56/13.84 [2019-03-28 12:15:37,114 INFO L163 nArgumentSynthesizer]: Using integer mode. 20.56/13.84 [2019-03-28 12:15:37,117 INFO L445 LassoAnalysis]: Proved nontermination for one component. 20.56/13.84 [2019-03-28 12:15:37,118 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_#t~ret0=0} Honda state: {rec_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 20.56/13.84 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 20.56/13.84 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 20.56/13.84 Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 20.56/13.84 [2019-03-28 12:15:37,146 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 20.56/13.84 [2019-03-28 12:15:37,146 INFO L163 nArgumentSynthesizer]: Using integer mode. 20.56/13.84 [2019-03-28 12:15:37,150 INFO L445 LassoAnalysis]: Proved nontermination for one component. 20.56/13.84 [2019-03-28 12:15:37,150 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_~rescopy~0=0} Honda state: {rec_~rescopy~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 20.56/13.84 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 20.56/13.84 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 20.56/13.84 Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 20.56/13.84 [2019-03-28 12:15:37,182 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 20.56/13.84 [2019-03-28 12:15:37,182 INFO L163 nArgumentSynthesizer]: Using integer mode. 20.56/13.84 [2019-03-28 12:15:37,185 INFO L445 LassoAnalysis]: Proved nontermination for one component. 20.56/13.84 [2019-03-28 12:15:37,186 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_#res=0} Honda state: {rec_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 20.56/13.84 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 20.56/13.84 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 20.56/13.84 Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 20.56/13.84 [2019-03-28 12:15:37,215 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 20.56/13.84 [2019-03-28 12:15:37,215 INFO L163 nArgumentSynthesizer]: Using integer mode. 20.56/13.84 [2019-03-28 12:15:37,219 INFO L445 LassoAnalysis]: Proved nontermination for one component. 20.56/13.84 [2019-03-28 12:15:37,219 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_#t~post1=0} Honda state: {rec_#t~post1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 20.56/13.84 [2019-03-28 12:15:37,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. 20.56/13.84 [2019-03-28 12:15:37,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 20.56/13.84 [2019-03-28 12:15:37,249 INFO L87 Difference]: Start difference. First operand 37 states and 56 transitions. cyclomatic complexity: 26 Second operand 5 states. 20.56/13.84 [2019-03-28 12:15:37,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. 20.56/13.84 [2019-03-28 12:15:37,294 INFO L93 Difference]: Finished difference Result 47 states and 69 transitions. 20.56/13.84 [2019-03-28 12:15:37,295 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 20.56/13.84 [2019-03-28 12:15:37,298 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 47 states and 69 transitions. 20.56/13.84 [2019-03-28 12:15:37,301 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 10 20.56/13.84 [2019-03-28 12:15:37,302 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 47 states to 46 states and 68 transitions. 20.56/13.84 [2019-03-28 12:15:37,303 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 37 20.56/13.84 [2019-03-28 12:15:37,303 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 37 20.56/13.84 [2019-03-28 12:15:37,303 INFO L73 IsDeterministic]: Start isDeterministic. Operand 46 states and 68 transitions. 20.56/13.84 [2019-03-28 12:15:37,303 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. 20.56/13.84 [2019-03-28 12:15:37,303 INFO L706 BuchiCegarLoop]: Abstraction has 46 states and 68 transitions. 20.56/13.84 [2019-03-28 12:15:37,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states and 68 transitions. 20.56/13.84 [2019-03-28 12:15:37,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 40. 20.56/13.84 [2019-03-28 12:15:37,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. 20.56/13.84 [2019-03-28 12:15:37,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 59 transitions. 20.56/13.84 [2019-03-28 12:15:37,311 INFO L729 BuchiCegarLoop]: Abstraction has 40 states and 59 transitions. 20.56/13.84 [2019-03-28 12:15:37,311 INFO L609 BuchiCegarLoop]: Abstraction has 40 states and 59 transitions. 20.56/13.84 [2019-03-28 12:15:37,311 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ 20.56/13.84 [2019-03-28 12:15:37,311 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 40 states and 59 transitions. 20.56/13.84 [2019-03-28 12:15:37,313 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 9 20.56/13.84 [2019-03-28 12:15:37,313 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 20.56/13.84 [2019-03-28 12:15:37,313 INFO L119 BuchiIsEmpty]: Starting construction of run 20.56/13.84 [2019-03-28 12:15:37,313 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1] 20.56/13.84 [2019-03-28 12:15:37,313 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] 20.56/13.84 [2019-03-28 12:15:37,314 INFO L794 eck$LassoCheckResult]: Stem: 250#ULTIMATE.startENTRY [78] ULTIMATE.startENTRY-->L20: Formula: (< 0 v_ULTIMATE.start_main_~i~0_8) InVars {} OutVars{ULTIMATE.start_main_~res~1=v_ULTIMATE.start_main_~res~1_5, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_5|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8, ULTIMATE.start_main_#t~ret3=|v_ULTIMATE.start_main_#t~ret3_6|} AuxVars[] AssignedVars[ULTIMATE.start_main_~res~1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_#t~ret3] 237#L20 [58] L20-->recENTRY: Formula: (= |v_rec_#in~aInParam_2| v_ULTIMATE.start_main_~i~0_7) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} OutVars{rec_#in~a=|v_rec_#in~aInParam_2|} AuxVars[] AssignedVars[rec_#in~a]< 236#recENTRY [48] recENTRY-->L5: Formula: (= v_rec_~a_1 |v_rec_#in~a_1|) InVars {rec_#in~a=|v_rec_#in~a_1|} OutVars{rec_~a=v_rec_~a_1, rec_#in~a=|v_rec_#in~a_1|} AuxVars[] AssignedVars[rec_~a] 238#L5 [74] L5-->L8: Formula: (< 0 v_rec_~a_3) InVars {rec_~a=v_rec_~a_3} OutVars{rec_~a=v_rec_~a_3} AuxVars[] AssignedVars[] 244#L8 [60] L8-->recENTRY: Formula: (= |v_rec_#in~aInParam_1| (+ v_rec_~a_5 (- 1))) InVars {rec_~a=v_rec_~a_5} OutVars{rec_#in~a=|v_rec_#in~aInParam_1|} AuxVars[] AssignedVars[rec_#in~a]< 247#recENTRY [48] recENTRY-->L5: Formula: (= v_rec_~a_1 |v_rec_#in~a_1|) InVars {rec_#in~a=|v_rec_#in~a_1|} OutVars{rec_~a=v_rec_~a_1, rec_#in~a=|v_rec_#in~a_1|} AuxVars[] AssignedVars[rec_~a] 255#L5 [75] L5-->L8: Formula: (> 0 v_rec_~a_3) InVars {rec_~a=v_rec_~a_3} OutVars{rec_~a=v_rec_~a_3} AuxVars[] AssignedVars[] 242#L8 20.56/13.84 [2019-03-28 12:15:37,314 INFO L796 eck$LassoCheckResult]: Loop: 242#L8 [60] L8-->recENTRY: Formula: (= |v_rec_#in~aInParam_1| (+ v_rec_~a_5 (- 1))) InVars {rec_~a=v_rec_~a_5} OutVars{rec_#in~a=|v_rec_#in~aInParam_1|} AuxVars[] AssignedVars[rec_#in~a]< 246#recENTRY [48] recENTRY-->L5: Formula: (= v_rec_~a_1 |v_rec_#in~a_1|) InVars {rec_#in~a=|v_rec_#in~a_1|} OutVars{rec_~a=v_rec_~a_1, rec_#in~a=|v_rec_#in~a_1|} AuxVars[] AssignedVars[rec_~a] 260#L5 [75] L5-->L8: Formula: (> 0 v_rec_~a_3) InVars {rec_~a=v_rec_~a_3} OutVars{rec_~a=v_rec_~a_3} AuxVars[] AssignedVars[] 242#L8 20.56/13.84 [2019-03-28 12:15:37,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 20.56/13.84 [2019-03-28 12:15:37,314 INFO L82 PathProgramCache]: Analyzing trace with hash -339263056, now seen corresponding path program 1 times 20.56/13.84 [2019-03-28 12:15:37,315 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 20.56/13.84 [2019-03-28 12:15:37,315 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 20.56/13.84 [2019-03-28 12:15:37,316 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 20.56/13.84 [2019-03-28 12:15:37,316 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 20.56/13.84 [2019-03-28 12:15:37,316 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 20.56/13.84 [2019-03-28 12:15:37,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 20.56/13.84 [2019-03-28 12:15:37,337 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. 20.56/13.84 [2019-03-28 12:15:37,337 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. 20.56/13.84 [2019-03-28 12:15:37,337 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 20.56/13.84 [2019-03-28 12:15:37,338 INFO L799 eck$LassoCheckResult]: stem already infeasible 20.56/13.84 [2019-03-28 12:15:37,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 20.56/13.84 [2019-03-28 12:15:37,338 INFO L82 PathProgramCache]: Analyzing trace with hash 89014, now seen corresponding path program 2 times 20.56/13.84 [2019-03-28 12:15:37,338 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 20.56/13.84 [2019-03-28 12:15:37,338 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 20.56/13.84 [2019-03-28 12:15:37,339 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 20.56/13.84 [2019-03-28 12:15:37,339 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 20.56/13.84 [2019-03-28 12:15:37,339 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 20.56/13.84 [2019-03-28 12:15:37,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 20.56/13.84 [2019-03-28 12:15:37,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 20.56/13.84 [2019-03-28 12:15:37,371 INFO L216 LassoAnalysis]: Preferences: 20.56/13.84 [2019-03-28 12:15:37,372 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 20.56/13.84 [2019-03-28 12:15:37,372 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 20.56/13.84 [2019-03-28 12:15:37,372 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 20.56/13.84 [2019-03-28 12:15:37,372 INFO L127 ssoRankerPreferences]: Use exernal solver: true 20.56/13.84 [2019-03-28 12:15:37,372 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 20.56/13.84 [2019-03-28 12:15:37,372 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 20.56/13.84 [2019-03-28 12:15:37,373 INFO L130 ssoRankerPreferences]: Path of dumped script: 20.56/13.84 [2019-03-28 12:15:37,373 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop 20.56/13.84 [2019-03-28 12:15:37,373 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 20.56/13.84 [2019-03-28 12:15:37,373 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 20.56/13.84 [2019-03-28 12:15:37,374 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 20.56/13.84 [2019-03-28 12:15:37,376 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 20.56/13.84 [2019-03-28 12:15:37,378 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 20.56/13.84 [2019-03-28 12:15:37,386 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 20.56/13.84 [2019-03-28 12:15:37,388 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 20.56/13.84 [2019-03-28 12:15:37,390 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 20.56/13.84 [2019-03-28 12:15:37,437 INFO L300 LassoAnalysis]: Preprocessing complete. 20.56/13.84 [2019-03-28 12:15:37,437 INFO L412 LassoAnalysis]: Checking for nontermination... 20.56/13.84 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 20.56/13.84 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 20.56/13.84 Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 20.56/13.84 [2019-03-28 12:15:37,441 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 20.56/13.84 [2019-03-28 12:15:37,441 INFO L163 nArgumentSynthesizer]: Using integer mode. 20.56/13.84 [2019-03-28 12:15:37,445 INFO L445 LassoAnalysis]: Proved nontermination for one component. 20.56/13.84 [2019-03-28 12:15:37,445 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_#t~ret0=0} Honda state: {rec_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 20.56/13.84 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 20.56/13.84 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 20.56/13.84 Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 20.56/13.84 [2019-03-28 12:15:37,473 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 20.56/13.84 [2019-03-28 12:15:37,474 INFO L163 nArgumentSynthesizer]: Using integer mode. 20.56/13.84 [2019-03-28 12:15:37,477 INFO L445 LassoAnalysis]: Proved nontermination for one component. 20.56/13.84 [2019-03-28 12:15:37,477 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_~res~0=0} Honda state: {rec_~res~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 20.56/13.84 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 20.56/13.84 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 20.56/13.84 Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 20.56/13.84 [2019-03-28 12:15:37,504 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 20.56/13.84 [2019-03-28 12:15:37,504 INFO L163 nArgumentSynthesizer]: Using integer mode. 20.56/13.84 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 20.56/13.84 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 20.56/13.84 Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 20.56/13.84 [2019-03-28 12:15:37,539 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true 20.56/13.84 [2019-03-28 12:15:37,539 INFO L163 nArgumentSynthesizer]: Using integer mode. 20.56/13.84 [2019-03-28 12:15:41,024 INFO L445 LassoAnalysis]: Proved nontermination for one component. 20.56/13.84 [2019-03-28 12:15:41,024 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_~a=-7, rec_#in~a=3} Honda state: {rec_~a=-7, rec_#in~a=3} Generalized eigenvectors: [{rec_~a=0, rec_#in~a=-2}, {rec_~a=-1, rec_#in~a=-1}, {rec_~a=0, rec_#in~a=-8}] Lambdas: [0, 1, 0] Nus: [0, 0] 20.56/13.84 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 20.56/13.84 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 20.56/13.84 Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 20.56/13.84 [2019-03-28 12:15:41,053 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 20.56/13.84 [2019-03-28 12:15:41,053 INFO L163 nArgumentSynthesizer]: Using integer mode. 20.56/13.84 [2019-03-28 12:15:41,057 INFO L445 LassoAnalysis]: Proved nontermination for one component. 20.56/13.84 [2019-03-28 12:15:41,057 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_#res=0} Honda state: {rec_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 20.56/13.84 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 20.56/13.84 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 20.56/13.84 Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 20.56/13.84 [2019-03-28 12:15:41,086 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 20.56/13.84 [2019-03-28 12:15:41,086 INFO L163 nArgumentSynthesizer]: Using integer mode. 20.56/13.84 [2019-03-28 12:15:41,089 INFO L445 LassoAnalysis]: Proved nontermination for one component. 20.56/13.84 [2019-03-28 12:15:41,089 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_~rescopy~0=0} Honda state: {rec_~rescopy~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 20.56/13.84 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 20.56/13.84 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 20.56/13.84 Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 20.56/13.84 [2019-03-28 12:15:41,117 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 20.56/13.84 [2019-03-28 12:15:41,117 INFO L163 nArgumentSynthesizer]: Using integer mode. 20.56/13.84 [2019-03-28 12:15:41,121 INFO L445 LassoAnalysis]: Proved nontermination for one component. 20.56/13.84 [2019-03-28 12:15:41,121 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_#t~post1=0} Honda state: {rec_#t~post1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 20.56/13.84 [2019-03-28 12:15:41,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. 20.56/13.84 [2019-03-28 12:15:41,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 20.56/13.84 [2019-03-28 12:15:41,146 INFO L87 Difference]: Start difference. First operand 40 states and 59 transitions. cyclomatic complexity: 27 Second operand 5 states. 20.56/13.84 [2019-03-28 12:15:41,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. 20.56/13.84 [2019-03-28 12:15:41,188 INFO L93 Difference]: Finished difference Result 21 states and 26 transitions. 20.56/13.84 [2019-03-28 12:15:41,188 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 20.56/13.84 [2019-03-28 12:15:41,191 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 26 transitions. 20.56/13.84 [2019-03-28 12:15:41,192 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 3 20.56/13.84 [2019-03-28 12:15:41,193 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 21 states and 26 transitions. 20.56/13.84 [2019-03-28 12:15:41,193 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 20.56/13.84 [2019-03-28 12:15:41,193 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 20.56/13.84 [2019-03-28 12:15:41,193 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 26 transitions. 20.56/13.84 [2019-03-28 12:15:41,194 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. 20.56/13.84 [2019-03-28 12:15:41,194 INFO L706 BuchiCegarLoop]: Abstraction has 21 states and 26 transitions. 20.56/13.84 [2019-03-28 12:15:41,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 26 transitions. 20.56/13.84 [2019-03-28 12:15:41,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 19. 20.56/13.84 [2019-03-28 12:15:41,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. 20.56/13.84 [2019-03-28 12:15:41,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. 20.56/13.84 [2019-03-28 12:15:41,196 INFO L729 BuchiCegarLoop]: Abstraction has 19 states and 23 transitions. 20.56/13.84 [2019-03-28 12:15:41,197 INFO L609 BuchiCegarLoop]: Abstraction has 19 states and 23 transitions. 20.56/13.84 [2019-03-28 12:15:41,197 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ 20.56/13.84 [2019-03-28 12:15:41,197 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 23 transitions. 20.56/13.84 [2019-03-28 12:15:41,198 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 3 20.56/13.84 [2019-03-28 12:15:41,198 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 20.56/13.84 [2019-03-28 12:15:41,198 INFO L119 BuchiIsEmpty]: Starting construction of run 20.56/13.84 [2019-03-28 12:15:41,199 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] 20.56/13.84 [2019-03-28 12:15:41,199 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] 20.56/13.84 [2019-03-28 12:15:41,200 INFO L794 eck$LassoCheckResult]: Stem: 320#ULTIMATE.startENTRY [78] ULTIMATE.startENTRY-->L20: Formula: (< 0 v_ULTIMATE.start_main_~i~0_8) InVars {} OutVars{ULTIMATE.start_main_~res~1=v_ULTIMATE.start_main_~res~1_5, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_5|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8, ULTIMATE.start_main_#t~ret3=|v_ULTIMATE.start_main_#t~ret3_6|} AuxVars[] AssignedVars[ULTIMATE.start_main_~res~1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_#t~ret3] 311#L20 [58] L20-->recENTRY: Formula: (= |v_rec_#in~aInParam_2| v_ULTIMATE.start_main_~i~0_7) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} OutVars{rec_#in~a=|v_rec_#in~aInParam_2|} AuxVars[] AssignedVars[rec_#in~a]< 310#recENTRY [48] recENTRY-->L5: Formula: (= v_rec_~a_1 |v_rec_#in~a_1|) InVars {rec_#in~a=|v_rec_#in~a_1|} OutVars{rec_~a=v_rec_~a_1, rec_#in~a=|v_rec_#in~a_1|} AuxVars[] AssignedVars[rec_~a] 312#L5 [74] L5-->L8: Formula: (< 0 v_rec_~a_3) InVars {rec_~a=v_rec_~a_3} OutVars{rec_~a=v_rec_~a_3} AuxVars[] AssignedVars[] 314#L8 [60] L8-->recENTRY: Formula: (= |v_rec_#in~aInParam_1| (+ v_rec_~a_5 (- 1))) InVars {rec_~a=v_rec_~a_5} OutVars{rec_#in~a=|v_rec_#in~aInParam_1|} AuxVars[] AssignedVars[rec_#in~a]< 313#recENTRY [48] recENTRY-->L5: Formula: (= v_rec_~a_1 |v_rec_#in~a_1|) InVars {rec_#in~a=|v_rec_#in~a_1|} OutVars{rec_~a=v_rec_~a_1, rec_#in~a=|v_rec_#in~a_1|} AuxVars[] AssignedVars[rec_~a] 317#L5 [52] L5-->recFINAL: Formula: (and (= 0 v_rec_~a_2) (= |v_rec_#res_1| 0)) InVars {rec_~a=v_rec_~a_2} OutVars{rec_~a=v_rec_~a_2, rec_#res=|v_rec_#res_1|} AuxVars[] AssignedVars[rec_#res] 319#recFINAL [66] recFINAL-->recEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 322#recEXIT >[68] recEXIT-->L8-1: AOR: Formula: (= |v_rec_#t~ret0_4| |v_rec_#resOutParam_1|) InVars {rec_#res=|v_rec_#resOutParam_1|} OutVars{rec_#t~ret0=|v_rec_#t~ret0_4|} AuxVars[] AssignedVars[rec_#t~ret0] LVA: Formula: (= |v_rec_#in~aInParam_1| (+ v_rec_~a_5 (- 1))) InVars {rec_~a=v_rec_~a_5} OutVars{rec_#in~a=|v_rec_#in~aInParam_1|} AuxVars[] AssignedVars[rec_#in~a] 323#L8-1 [64] L8-1-->L10-2: Formula: (and (= v_rec_~res~0_2 |v_rec_#t~ret0_3|) (= v_rec_~rescopy~0_1 v_rec_~res~0_2)) InVars {rec_#t~ret0=|v_rec_#t~ret0_3|} OutVars{rec_~rescopy~0=v_rec_~rescopy~0_1, rec_#t~ret0=|v_rec_#t~ret0_2|, rec_~res~0=v_rec_~res~0_2} AuxVars[] AssignedVars[rec_#t~ret0, rec_~rescopy~0, rec_~res~0] 328#L10-2 20.56/13.84 [2019-03-28 12:15:41,200 INFO L796 eck$LassoCheckResult]: Loop: 328#L10-2 [63] L10-2-->L10-2: Formula: (and (< 0 v_rec_~rescopy~0_4) (= v_rec_~rescopy~0_4 (+ v_rec_~rescopy~0_3 1))) InVars {rec_~rescopy~0=v_rec_~rescopy~0_4} OutVars{rec_~rescopy~0=v_rec_~rescopy~0_3, rec_#t~post1=|v_rec_#t~post1_1|} AuxVars[] AssignedVars[rec_~rescopy~0, rec_#t~post1] 328#L10-2 20.56/13.84 [2019-03-28 12:15:41,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 20.56/13.84 [2019-03-28 12:15:41,201 INFO L82 PathProgramCache]: Analyzing trace with hash -928273403, now seen corresponding path program 1 times 20.56/13.84 [2019-03-28 12:15:41,201 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 20.56/13.84 [2019-03-28 12:15:41,201 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 20.56/13.84 [2019-03-28 12:15:41,202 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 20.56/13.84 [2019-03-28 12:15:41,202 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY 20.56/13.84 [2019-03-28 12:15:41,202 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 20.56/13.84 [2019-03-28 12:15:41,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 20.56/13.84 [2019-03-28 12:15:41,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 20.56/13.84 [2019-03-28 12:15:41,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 20.56/13.84 [2019-03-28 12:15:41,213 INFO L82 PathProgramCache]: Analyzing trace with hash 94, now seen corresponding path program 1 times 20.56/13.84 [2019-03-28 12:15:41,214 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 20.56/13.84 [2019-03-28 12:15:41,214 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 20.56/13.84 [2019-03-28 12:15:41,214 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 20.56/13.84 [2019-03-28 12:15:41,215 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 20.56/13.84 [2019-03-28 12:15:41,215 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 20.56/13.84 [2019-03-28 12:15:41,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 20.56/13.84 [2019-03-28 12:15:41,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 20.56/13.84 [2019-03-28 12:15:41,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 20.56/13.84 [2019-03-28 12:15:41,219 INFO L82 PathProgramCache]: Analyzing trace with hash 1288295642, now seen corresponding path program 1 times 20.56/13.84 [2019-03-28 12:15:41,220 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 20.56/13.84 [2019-03-28 12:15:41,220 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 20.56/13.84 [2019-03-28 12:15:41,220 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 20.56/13.84 [2019-03-28 12:15:41,221 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 20.56/13.84 [2019-03-28 12:15:41,221 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 20.56/13.84 [2019-03-28 12:15:41,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 20.56/13.84 [2019-03-28 12:15:41,288 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. 20.56/13.84 [2019-03-28 12:15:41,288 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. 20.56/13.84 [2019-03-28 12:15:41,289 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 20.56/13.84 [2019-03-28 12:15:41,303 INFO L216 LassoAnalysis]: Preferences: 20.56/13.84 [2019-03-28 12:15:41,303 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 20.56/13.84 [2019-03-28 12:15:41,303 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 20.56/13.84 [2019-03-28 12:15:41,303 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 20.56/13.84 [2019-03-28 12:15:41,303 INFO L127 ssoRankerPreferences]: Use exernal solver: true 20.56/13.84 [2019-03-28 12:15:41,304 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 20.56/13.84 [2019-03-28 12:15:41,304 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 20.56/13.84 [2019-03-28 12:15:41,304 INFO L130 ssoRankerPreferences]: Path of dumped script: 20.56/13.84 [2019-03-28 12:15:41,304 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop 20.56/13.84 [2019-03-28 12:15:41,304 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 20.56/13.84 [2019-03-28 12:15:41,304 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 20.56/13.84 [2019-03-28 12:15:41,305 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 20.56/13.84 [2019-03-28 12:15:41,315 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 20.56/13.84 [2019-03-28 12:15:41,339 INFO L300 LassoAnalysis]: Preprocessing complete. 20.56/13.84 [2019-03-28 12:15:41,339 INFO L412 LassoAnalysis]: Checking for nontermination... 20.56/13.84 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 20.56/13.84 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 20.56/13.84 Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 20.56/13.84 [2019-03-28 12:15:41,345 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 20.56/13.84 [2019-03-28 12:15:41,345 INFO L163 nArgumentSynthesizer]: Using integer mode. 20.56/13.84 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 20.56/13.84 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 20.56/13.84 Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 20.56/13.84 [2019-03-28 12:15:41,376 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true 20.56/13.84 [2019-03-28 12:15:41,376 INFO L163 nArgumentSynthesizer]: Using integer mode. 20.56/13.84 [2019-03-28 12:15:41,407 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. 20.56/13.84 [2019-03-28 12:15:41,408 INFO L216 LassoAnalysis]: Preferences: 20.56/13.84 [2019-03-28 12:15:41,409 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 20.56/13.84 [2019-03-28 12:15:41,409 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 20.56/13.84 [2019-03-28 12:15:41,409 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 20.56/13.84 [2019-03-28 12:15:41,409 INFO L127 ssoRankerPreferences]: Use exernal solver: false 20.56/13.84 [2019-03-28 12:15:41,409 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 20.56/13.84 [2019-03-28 12:15:41,409 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 20.56/13.84 [2019-03-28 12:15:41,409 INFO L130 ssoRankerPreferences]: Path of dumped script: 20.56/13.84 [2019-03-28 12:15:41,409 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop 20.56/13.84 [2019-03-28 12:15:41,410 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 20.56/13.84 [2019-03-28 12:15:41,410 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 20.56/13.84 [2019-03-28 12:15:41,411 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 20.56/13.84 [2019-03-28 12:15:41,419 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 20.56/13.84 [2019-03-28 12:15:41,442 INFO L300 LassoAnalysis]: Preprocessing complete. 20.56/13.84 [2019-03-28 12:15:41,442 INFO L497 LassoAnalysis]: Using template 'affine'. 20.56/13.84 [2019-03-28 12:15:41,443 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 20.56/13.84 Termination analysis: LINEAR_WITH_GUESSES 20.56/13.84 Number of strict supporting invariants: 0 20.56/13.84 Number of non-strict supporting invariants: 1 20.56/13.84 Consider only non-deceasing supporting invariants: true 20.56/13.84 Simplify termination arguments: true 20.56/13.84 Simplify supporting invariants: trueOverapproximate stem: false 20.56/13.84 [2019-03-28 12:15:41,443 INFO L339 nArgumentSynthesizer]: Template has degree 0. 20.56/13.84 [2019-03-28 12:15:41,444 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 20.56/13.84 [2019-03-28 12:15:41,444 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 20.56/13.84 [2019-03-28 12:15:41,444 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 20.56/13.84 [2019-03-28 12:15:41,444 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 20.56/13.84 [2019-03-28 12:15:41,445 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 20.56/13.84 [2019-03-28 12:15:41,445 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 20.56/13.84 [2019-03-28 12:15:41,450 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. 20.56/13.84 [2019-03-28 12:15:41,454 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. 20.56/13.84 [2019-03-28 12:15:41,454 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. 20.56/13.84 [2019-03-28 12:15:41,454 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... 20.56/13.84 [2019-03-28 12:15:41,455 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. 20.56/13.84 [2019-03-28 12:15:41,455 INFO L518 LassoAnalysis]: Proved termination. 20.56/13.84 [2019-03-28 12:15:41,455 INFO L520 LassoAnalysis]: Termination argument consisting of: 20.56/13.84 Ranking function f(rec_~rescopy~0) = 1*rec_~rescopy~0 20.56/13.84 Supporting invariants [] 20.56/13.84 [2019-03-28 12:15:41,455 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed 20.56/13.84 [2019-03-28 12:15:41,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 20.56/13.84 [2019-03-28 12:15:41,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 20.56/13.84 [2019-03-28 12:15:41,498 INFO L256 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 6 conjunts are in the unsatisfiable core 20.56/13.84 [2019-03-28 12:15:41,500 INFO L279 TraceCheckSpWp]: Computing forward predicates... 20.56/13.84 [2019-03-28 12:15:41,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 20.56/13.84 [2019-03-28 12:15:41,529 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core 20.56/13.84 [2019-03-28 12:15:41,529 INFO L279 TraceCheckSpWp]: Computing forward predicates... 20.56/13.84 [2019-03-28 12:15:41,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. 20.56/13.84 [2019-03-28 12:15:41,551 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization 20.56/13.84 [2019-03-28 12:15:41,551 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.3 stem predicates 1 loop predicates 20.56/13.84 [2019-03-28 12:15:41,551 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 19 states and 23 transitions. cyclomatic complexity: 8 Second operand 3 states. 20.56/13.84 [2019-03-28 12:15:41,623 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 19 states and 23 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 27 states and 36 transitions. Complement of second has 9 states. 20.56/13.84 [2019-03-28 12:15:41,623 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states 20.56/13.84 [2019-03-28 12:15:41,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. 20.56/13.84 [2019-03-28 12:15:41,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. 20.56/13.84 [2019-03-28 12:15:41,624 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 10 letters. Loop has 1 letters. 20.56/13.84 [2019-03-28 12:15:41,624 INFO L116 BuchiAccepts]: Finished buchiAccepts. 20.56/13.84 [2019-03-28 12:15:41,625 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 11 letters. Loop has 1 letters. 20.56/13.84 [2019-03-28 12:15:41,625 INFO L116 BuchiAccepts]: Finished buchiAccepts. 20.56/13.84 [2019-03-28 12:15:41,625 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 10 letters. Loop has 2 letters. 20.56/13.84 [2019-03-28 12:15:41,625 INFO L116 BuchiAccepts]: Finished buchiAccepts. 20.56/13.84 [2019-03-28 12:15:41,627 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 36 transitions. 20.56/13.84 [2019-03-28 12:15:41,628 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 20.56/13.84 [2019-03-28 12:15:41,629 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 23 states and 30 transitions. 20.56/13.84 [2019-03-28 12:15:41,629 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 20.56/13.84 [2019-03-28 12:15:41,629 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 20.56/13.84 [2019-03-28 12:15:41,630 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 30 transitions. 20.56/13.84 [2019-03-28 12:15:41,630 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. 20.56/13.84 [2019-03-28 12:15:41,630 INFO L706 BuchiCegarLoop]: Abstraction has 23 states and 30 transitions. 20.56/13.84 [2019-03-28 12:15:41,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 30 transitions. 20.56/13.84 [2019-03-28 12:15:41,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 21. 20.56/13.84 [2019-03-28 12:15:41,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. 20.56/13.84 [2019-03-28 12:15:41,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 27 transitions. 20.56/13.84 [2019-03-28 12:15:41,633 INFO L729 BuchiCegarLoop]: Abstraction has 21 states and 27 transitions. 20.56/13.84 [2019-03-28 12:15:41,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. 20.56/13.84 [2019-03-28 12:15:41,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 20.56/13.84 [2019-03-28 12:15:41,633 INFO L87 Difference]: Start difference. First operand 21 states and 27 transitions. Second operand 5 states. 20.56/13.84 [2019-03-28 12:15:41,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. 20.56/13.84 [2019-03-28 12:15:41,651 INFO L93 Difference]: Finished difference Result 27 states and 34 transitions. 20.56/13.84 [2019-03-28 12:15:41,651 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 20.56/13.84 [2019-03-28 12:15:41,653 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 34 transitions. 20.56/13.84 [2019-03-28 12:15:41,654 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 20.56/13.84 [2019-03-28 12:15:41,655 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 27 states and 34 transitions. 20.56/13.84 [2019-03-28 12:15:41,655 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 20.56/13.84 [2019-03-28 12:15:41,656 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 20.56/13.84 [2019-03-28 12:15:41,656 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 34 transitions. 20.56/13.84 [2019-03-28 12:15:41,656 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. 20.56/13.84 [2019-03-28 12:15:41,656 INFO L706 BuchiCegarLoop]: Abstraction has 27 states and 34 transitions. 20.56/13.84 [2019-03-28 12:15:41,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 34 transitions. 20.56/13.84 [2019-03-28 12:15:41,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. 20.56/13.84 [2019-03-28 12:15:41,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. 20.56/13.84 [2019-03-28 12:15:41,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 34 transitions. 20.56/13.84 [2019-03-28 12:15:41,660 INFO L729 BuchiCegarLoop]: Abstraction has 27 states and 34 transitions. 20.56/13.84 [2019-03-28 12:15:41,660 INFO L609 BuchiCegarLoop]: Abstraction has 27 states and 34 transitions. 20.56/13.84 [2019-03-28 12:15:41,660 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ 20.56/13.84 [2019-03-28 12:15:41,660 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 34 transitions. 20.56/13.84 [2019-03-28 12:15:41,661 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 20.56/13.84 [2019-03-28 12:15:41,661 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 20.56/13.84 [2019-03-28 12:15:41,662 INFO L119 BuchiIsEmpty]: Starting construction of run 20.56/13.84 [2019-03-28 12:15:41,662 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] 20.56/13.84 [2019-03-28 12:15:41,662 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] 20.56/13.84 [2019-03-28 12:15:41,663 INFO L794 eck$LassoCheckResult]: Stem: 481#ULTIMATE.startENTRY [78] ULTIMATE.startENTRY-->L20: Formula: (< 0 v_ULTIMATE.start_main_~i~0_8) InVars {} OutVars{ULTIMATE.start_main_~res~1=v_ULTIMATE.start_main_~res~1_5, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_5|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8, ULTIMATE.start_main_#t~ret3=|v_ULTIMATE.start_main_#t~ret3_6|} AuxVars[] AssignedVars[ULTIMATE.start_main_~res~1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_#t~ret3] 471#L20 [58] L20-->recENTRY: Formula: (= |v_rec_#in~aInParam_2| v_ULTIMATE.start_main_~i~0_7) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} OutVars{rec_#in~a=|v_rec_#in~aInParam_2|} AuxVars[] AssignedVars[rec_#in~a]< 470#recENTRY [48] recENTRY-->L5: Formula: (= v_rec_~a_1 |v_rec_#in~a_1|) InVars {rec_#in~a=|v_rec_#in~a_1|} OutVars{rec_~a=v_rec_~a_1, rec_#in~a=|v_rec_#in~a_1|} AuxVars[] AssignedVars[rec_~a] 472#L5 [74] L5-->L8: Formula: (< 0 v_rec_~a_3) InVars {rec_~a=v_rec_~a_3} OutVars{rec_~a=v_rec_~a_3} AuxVars[] AssignedVars[] 475#L8 [60] L8-->recENTRY: Formula: (= |v_rec_#in~aInParam_1| (+ v_rec_~a_5 (- 1))) InVars {rec_~a=v_rec_~a_5} OutVars{rec_#in~a=|v_rec_#in~aInParam_1|} AuxVars[] AssignedVars[rec_#in~a]< 473#recENTRY [48] recENTRY-->L5: Formula: (= v_rec_~a_1 |v_rec_#in~a_1|) InVars {rec_#in~a=|v_rec_#in~a_1|} OutVars{rec_~a=v_rec_~a_1, rec_#in~a=|v_rec_#in~a_1|} AuxVars[] AssignedVars[rec_~a] 477#L5 [52] L5-->recFINAL: Formula: (and (= 0 v_rec_~a_2) (= |v_rec_#res_1| 0)) InVars {rec_~a=v_rec_~a_2} OutVars{rec_~a=v_rec_~a_2, rec_#res=|v_rec_#res_1|} AuxVars[] AssignedVars[rec_#res] 486#recFINAL [66] recFINAL-->recEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 483#recEXIT >[68] recEXIT-->L8-1: AOR: Formula: (= |v_rec_#t~ret0_4| |v_rec_#resOutParam_1|) InVars {rec_#res=|v_rec_#resOutParam_1|} OutVars{rec_#t~ret0=|v_rec_#t~ret0_4|} AuxVars[] AssignedVars[rec_#t~ret0] LVA: Formula: (= |v_rec_#in~aInParam_1| (+ v_rec_~a_5 (- 1))) InVars {rec_~a=v_rec_~a_5} OutVars{rec_#in~a=|v_rec_#in~aInParam_1|} AuxVars[] AssignedVars[rec_#in~a] 484#L8-1 [64] L8-1-->L10-2: Formula: (and (= v_rec_~res~0_2 |v_rec_#t~ret0_3|) (= v_rec_~rescopy~0_1 v_rec_~res~0_2)) InVars {rec_#t~ret0=|v_rec_#t~ret0_3|} OutVars{rec_~rescopy~0=v_rec_~rescopy~0_1, rec_#t~ret0=|v_rec_#t~ret0_2|, rec_~res~0=v_rec_~res~0_2} AuxVars[] AssignedVars[rec_#t~ret0, rec_~rescopy~0, rec_~res~0] 491#L10-2 [77] L10-2-->recFINAL: Formula: (and (<= v_rec_~rescopy~0_5 0) (= |v_rec_#res_3| (+ v_rec_~res~0_3 1))) InVars {rec_~rescopy~0=v_rec_~rescopy~0_5, rec_~res~0=v_rec_~res~0_3} OutVars{rec_#res=|v_rec_#res_3|, rec_~rescopy~0=v_rec_~rescopy~0_5, rec_~res~0=v_rec_~res~0_3} AuxVars[] AssignedVars[rec_#res] 490#recFINAL [66] recFINAL-->recEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 489#recEXIT >[69] recEXIT-->L20-1: AOR: Formula: (= |v_ULTIMATE.start_main_#t~ret3_5| |v_rec_#resOutParam_2|) InVars {rec_#res=|v_rec_#resOutParam_2|} OutVars{ULTIMATE.start_main_#t~ret3=|v_ULTIMATE.start_main_#t~ret3_5|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~ret3] LVA: Formula: (= |v_rec_#in~aInParam_2| v_ULTIMATE.start_main_~i~0_7) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} OutVars{rec_#in~a=|v_rec_#in~aInParam_2|} AuxVars[] AssignedVars[rec_#in~a] 487#L20-1 [54] L20-1-->L21-2: Formula: (= v_ULTIMATE.start_main_~res~1_4 |v_ULTIMATE.start_main_#t~ret3_4|) InVars {ULTIMATE.start_main_#t~ret3=|v_ULTIMATE.start_main_#t~ret3_4|} OutVars{ULTIMATE.start_main_~res~1=v_ULTIMATE.start_main_~res~1_4, ULTIMATE.start_main_#t~ret3=|v_ULTIMATE.start_main_#t~ret3_3|} AuxVars[] AssignedVars[ULTIMATE.start_main_~res~1, ULTIMATE.start_main_#t~ret3] 488#L21-2 20.56/13.84 [2019-03-28 12:15:41,663 INFO L796 eck$LassoCheckResult]: Loop: 488#L21-2 [57] L21-2-->L21-2: Formula: (< v_ULTIMATE.start_main_~res~1_3 1) InVars {ULTIMATE.start_main_~res~1=v_ULTIMATE.start_main_~res~1_3} OutVars{ULTIMATE.start_main_~res~1=v_ULTIMATE.start_main_~res~1_3} AuxVars[] AssignedVars[] 488#L21-2 20.56/13.84 [2019-03-28 12:15:41,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 20.56/13.84 [2019-03-28 12:15:41,663 INFO L82 PathProgramCache]: Analyzing trace with hash -211803541, now seen corresponding path program 1 times 20.56/13.84 [2019-03-28 12:15:41,663 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 20.56/13.84 [2019-03-28 12:15:41,663 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 20.56/13.84 [2019-03-28 12:15:41,664 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 20.56/13.84 [2019-03-28 12:15:41,665 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 20.56/13.84 [2019-03-28 12:15:41,665 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 20.56/13.84 [2019-03-28 12:15:41,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 20.56/13.84 [2019-03-28 12:15:41,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 20.56/13.84 [2019-03-28 12:15:41,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 20.56/13.84 [2019-03-28 12:15:41,679 INFO L82 PathProgramCache]: Analyzing trace with hash 88, now seen corresponding path program 1 times 20.56/13.84 [2019-03-28 12:15:41,679 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 20.56/13.84 [2019-03-28 12:15:41,680 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 20.56/13.84 [2019-03-28 12:15:41,680 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 20.56/13.84 [2019-03-28 12:15:41,680 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 20.56/13.84 [2019-03-28 12:15:41,681 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 20.56/13.84 [2019-03-28 12:15:41,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 20.56/13.84 [2019-03-28 12:15:41,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 20.56/13.84 [2019-03-28 12:15:41,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 20.56/13.84 [2019-03-28 12:15:41,683 INFO L82 PathProgramCache]: Analyzing trace with hash 2024024878, now seen corresponding path program 1 times 20.56/13.84 [2019-03-28 12:15:41,683 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 20.56/13.84 [2019-03-28 12:15:41,683 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 20.56/13.84 [2019-03-28 12:15:41,684 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 20.56/13.84 [2019-03-28 12:15:41,684 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 20.56/13.84 [2019-03-28 12:15:41,684 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 20.56/13.84 [2019-03-28 12:15:41,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 20.56/13.84 [2019-03-28 12:15:41,731 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. 20.56/13.84 [2019-03-28 12:15:41,731 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. 20.56/13.84 [2019-03-28 12:15:41,732 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 20.56/13.84 [2019-03-28 12:15:41,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. 20.56/13.84 [2019-03-28 12:15:41,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 20.56/13.84 [2019-03-28 12:15:41,738 INFO L87 Difference]: Start difference. First operand 27 states and 34 transitions. cyclomatic complexity: 11 Second operand 8 states. 20.56/13.84 [2019-03-28 12:15:41,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. 20.56/13.84 [2019-03-28 12:15:41,763 INFO L93 Difference]: Finished difference Result 27 states and 33 transitions. 20.56/13.84 [2019-03-28 12:15:41,764 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 20.56/13.84 [2019-03-28 12:15:41,765 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 33 transitions. 20.56/13.84 [2019-03-28 12:15:41,767 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 20.56/13.84 [2019-03-28 12:15:41,767 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 0 states and 0 transitions. 20.56/13.84 [2019-03-28 12:15:41,767 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 20.56/13.84 [2019-03-28 12:15:41,767 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 20.56/13.84 [2019-03-28 12:15:41,767 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. 20.56/13.84 [2019-03-28 12:15:41,767 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. 20.56/13.84 [2019-03-28 12:15:41,767 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. 20.56/13.84 [2019-03-28 12:15:41,767 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. 20.56/13.84 [2019-03-28 12:15:41,768 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. 20.56/13.84 [2019-03-28 12:15:41,768 INFO L442 BuchiCegarLoop]: ======== Iteration 6============ 20.56/13.84 [2019-03-28 12:15:41,768 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. 20.56/13.84 [2019-03-28 12:15:41,768 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 20.56/13.84 [2019-03-28 12:15:41,768 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true 20.56/13.84 [2019-03-28 12:15:41,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.03 12:15:41 BasicIcfg 20.56/13.84 [2019-03-28 12:15:41,774 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- 20.56/13.84 [2019-03-28 12:15:41,775 INFO L168 Benchmark]: Toolchain (without parser) took 7026.32 ms. Allocated memory was 649.6 MB in the beginning and 747.1 MB in the end (delta: 97.5 MB). Free memory was 559.4 MB in the beginning and 630.1 MB in the end (delta: -70.8 MB). Peak memory consumption was 26.7 MB. Max. memory is 50.3 GB. 20.56/13.84 [2019-03-28 12:15:41,777 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 584.3 MB. There was no memory consumed. Max. memory is 50.3 GB. 20.56/13.84 [2019-03-28 12:15:41,777 INFO L168 Benchmark]: CACSL2BoogieTranslator took 226.13 ms. Allocated memory is still 649.6 MB. Free memory was 559.4 MB in the beginning and 548.6 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 50.3 GB. 20.56/13.84 [2019-03-28 12:15:41,777 INFO L168 Benchmark]: Boogie Procedure Inliner took 91.61 ms. Allocated memory was 649.6 MB in the beginning and 652.7 MB in the end (delta: 3.1 MB). Free memory was 548.6 MB in the beginning and 619.7 MB in the end (delta: -71.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 50.3 GB. 20.56/13.84 [2019-03-28 12:15:41,778 INFO L168 Benchmark]: Boogie Preprocessor took 20.42 ms. Allocated memory is still 652.7 MB. Free memory was 619.7 MB in the beginning and 616.8 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 50.3 GB. 20.56/13.84 [2019-03-28 12:15:41,779 INFO L168 Benchmark]: RCFGBuilder took 235.21 ms. Allocated memory is still 652.7 MB. Free memory was 616.8 MB in the beginning and 602.3 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 50.3 GB. 20.56/13.84 [2019-03-28 12:15:41,779 INFO L168 Benchmark]: BlockEncodingV2 took 81.80 ms. Allocated memory is still 652.7 MB. Free memory was 602.3 MB in the beginning and 596.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. 20.56/13.84 [2019-03-28 12:15:41,780 INFO L168 Benchmark]: TraceAbstraction took 169.79 ms. Allocated memory is still 652.7 MB. Free memory was 596.9 MB in the beginning and 586.0 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 50.3 GB. 20.56/13.84 [2019-03-28 12:15:41,780 INFO L168 Benchmark]: BuchiAutomizer took 6196.14 ms. Allocated memory was 652.7 MB in the beginning and 747.1 MB in the end (delta: 94.4 MB). Free memory was 586.0 MB in the beginning and 630.1 MB in the end (delta: -44.1 MB). Peak memory consumption was 50.3 MB. Max. memory is 50.3 GB. 20.56/13.84 [2019-03-28 12:15:41,784 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### 20.56/13.84 --- Results --- 20.56/13.84 * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: 20.56/13.84 - StatisticsResult: Initial Icfg 20.56/13.84 16 locations, 22 edges 20.56/13.84 - StatisticsResult: Encoded RCFG 20.56/13.84 11 locations, 15 edges 20.56/13.84 * Results from de.uni_freiburg.informatik.ultimate.core: 20.56/13.84 - StatisticsResult: Toolchain Benchmarks 20.56/13.84 Benchmark results are: 20.56/13.84 * CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 584.3 MB. There was no memory consumed. Max. memory is 50.3 GB. 20.56/13.84 * CACSL2BoogieTranslator took 226.13 ms. Allocated memory is still 649.6 MB. Free memory was 559.4 MB in the beginning and 548.6 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 50.3 GB. 20.56/13.84 * Boogie Procedure Inliner took 91.61 ms. Allocated memory was 649.6 MB in the beginning and 652.7 MB in the end (delta: 3.1 MB). Free memory was 548.6 MB in the beginning and 619.7 MB in the end (delta: -71.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 50.3 GB. 20.56/13.84 * Boogie Preprocessor took 20.42 ms. Allocated memory is still 652.7 MB. Free memory was 619.7 MB in the beginning and 616.8 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 50.3 GB. 20.56/13.84 * RCFGBuilder took 235.21 ms. Allocated memory is still 652.7 MB. Free memory was 616.8 MB in the beginning and 602.3 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 50.3 GB. 20.56/13.84 * BlockEncodingV2 took 81.80 ms. Allocated memory is still 652.7 MB. Free memory was 602.3 MB in the beginning and 596.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. 20.56/13.84 * TraceAbstraction took 169.79 ms. Allocated memory is still 652.7 MB. Free memory was 596.9 MB in the beginning and 586.0 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 50.3 GB. 20.56/13.84 * BuchiAutomizer took 6196.14 ms. Allocated memory was 652.7 MB in the beginning and 747.1 MB in the end (delta: 94.4 MB). Free memory was 586.0 MB in the beginning and 630.1 MB in the end (delta: -44.1 MB). Peak memory consumption was 50.3 MB. Max. memory is 50.3 GB. 20.56/13.84 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: 20.56/13.84 - AllSpecificationsHoldResult: All specifications hold 20.56/13.84 We were not able to verify any specifiation because the program does not contain any specification. 20.56/13.84 - InvariantResult [Line: 10]: Loop Invariant 20.56/13.84 Derived loop invariant: 1 20.56/13.84 - InvariantResult [Line: 21]: Loop Invariant 20.56/13.84 Derived loop invariant: 1 20.56/13.84 - StatisticsResult: Ultimate Automizer benchmark data 20.56/13.84 CFG has 2 procedures, 11 locations, 0 error locations. SAFE Result, 0.1s OverallTime, 0 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred 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, 5 LocationsWithAnnotation, 8 PreInvPairs, 8 NumberOfFragments, 5 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available 20.56/13.84 - StatisticsResult: Constructed decomposition of program 20.56/13.84 Your program was decomposed into 6 terminating modules (4 trivial, 0 deterministic, 2 nondeterministic). One nondeterministic module has affine ranking function \old(a) and consists of 6 locations. One nondeterministic module has affine ranking function rescopy and consists of 4 locations. 4 modules have a trivial ranking function, the largest among these consists of 8 locations. 20.56/13.84 - StatisticsResult: Timing statistics 20.56/13.84 BüchiAutomizer plugin needed 6.1s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 5.4s. Construction of modules took 0.1s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 18 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 40 states and ocurred in iteration 2. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 94 SDtfs, 83 SDslu, 175 SDs, 0 SdLazy, 120 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc1 concLT1 SILN2 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital11 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq165 hnf92 smp100 dnf100 smp100 tf112 neg100 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 10ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 15 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 4.0s 20.56/13.84 - TerminationAnalysisResult: Termination proven 20.56/13.84 Buchi Automizer proved that your program is terminating 20.56/13.84 RESULT: Ultimate proved your program to be correct! 20.56/13.84 !SESSION 2019-03-28 12:15:29.880 ----------------------------------------------- 20.56/13.84 eclipse.buildId=unknown 20.56/13.84 java.version=1.8.0_181 20.56/13.84 java.vendor=Oracle Corporation 20.56/13.84 BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US 20.56/13.84 Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox/benchmark/theBenchmark.c 20.56/13.84 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 20.56/13.84 20.56/13.84 !ENTRY org.eclipse.core.resources 2 10035 2019-03-28 12:15:42.016 20.56/13.84 !MESSAGE The workspace will exit with unsaved changes in this session. 20.56/13.84 Received shutdown request... 20.56/13.84 Ultimate: 20.56/13.84 GTK+ Version Check 20.56/13.84 EOF