YES Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-22 03:15:25,431 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-22 03:15:25,433 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-22 03:15:25,445 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-22 03:15:25,445 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-22 03:15:25,446 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-22 03:15:25,447 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-22 03:15:25,449 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-22 03:15:25,450 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-22 03:15:25,451 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-22 03:15:25,452 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-22 03:15:25,452 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-22 03:15:25,453 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-22 03:15:25,454 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-22 03:15:25,455 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-22 03:15:25,455 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-22 03:15:25,456 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-22 03:15:25,458 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-22 03:15:25,460 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-22 03:15:25,462 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-22 03:15:25,463 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-22 03:15:25,464 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-22 03:15:25,466 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-22 03:15:25,466 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-22 03:15:25,466 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-22 03:15:25,467 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-22 03:15:25,468 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-22 03:15:25,469 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-22 03:15:25,469 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-22 03:15:25,469 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-22 03:15:25,470 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-22 03:15:25,471 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-22 03:15:25,472 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-22 03:15:25,472 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-22 03:15:25,473 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-22 03:15:25,473 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-22 03:15:25,473 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-22 03:15:25,474 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-22 03:15:25,474 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-22 03:15:25,475 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-06-22 03:15:25,489 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-22 03:15:25,489 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-22 03:15:25,490 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-22 03:15:25,491 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-22 03:15:25,491 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-22 03:15:25,491 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-22 03:15:25,491 INFO L133 SettingsManager]: * Use SBE=true [2020-06-22 03:15:25,491 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-22 03:15:25,492 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-22 03:15:25,492 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-22 03:15:25,492 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-22 03:15:25,492 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-22 03:15:25,492 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-22 03:15:25,493 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-22 03:15:25,493 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 03:15:25,493 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-22 03:15:25,493 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-22 03:15:25,493 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-22 03:15:25,494 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-22 03:15:25,494 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-22 03:15:25,494 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-22 03:15:25,494 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-22 03:15:25,494 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-22 03:15:25,494 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-22 03:15:25,495 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 03:15:25,495 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-22 03:15:25,495 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-22 03:15:25,495 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-22 03:15:25,495 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-22 03:15:25,520 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-22 03:15:25,533 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-22 03:15:25,537 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-22 03:15:25,538 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-22 03:15:25,539 INFO L276 PluginConnector]: CDTParser initialized [2020-06-22 03:15:25,539 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-06-22 03:15:25,612 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/3b0ed199d02746288880692d7f533d2e/FLAG370963638 !SESSION 2020-06-22 03:15:23.088 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox/tmp -i /export/starexec/sandbox/benchmark/theBenchmark.c !ENTRY org.eclipse.cdt.core 1 0 2020-06-22 03:15:25.883 !MESSAGE Indexed 'FLAG370963638' (0 sources, 0 headers) in 0.008 sec: 0 declarations; 0 references; 0 unresolved inclusions; 0 syntax errors; 0 unresolved names (0%) [2020-06-22 03:15:25,958 INFO L307 CDTParser]: Found 1 translation units. [2020-06-22 03:15:25,959 INFO L161 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-06-22 03:15:25,966 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/3b0ed199d02746288880692d7f533d2e/FLAG370963638 [2020-06-22 03:15:26,413 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/3b0ed199d02746288880692d7f533d2e [2020-06-22 03:15:26,424 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-22 03:15:26,426 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-22 03:15:26,427 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-22 03:15:26,427 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-22 03:15:26,431 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-22 03:15:26,432 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 03:15:26" (1/1) ... [2020-06-22 03:15:26,435 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71cdd0c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 03:15:26, skipping insertion in model container [2020-06-22 03:15:26,435 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 03:15:26" (1/1) ... [2020-06-22 03:15:26,443 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-22 03:15:26,463 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-22 03:15:26,626 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 03:15:26,630 INFO L191 MainTranslator]: Completed pre-run [2020-06-22 03:15:26,712 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 03:15:26,727 INFO L195 MainTranslator]: Completed translation [2020-06-22 03:15:26,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 03:15:26 WrapperNode [2020-06-22 03:15:26,728 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-22 03:15:26,729 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-22 03:15:26,729 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-22 03:15:26,729 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-22 03:15:26,739 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 03:15:26" (1/1) ... [2020-06-22 03:15:26,744 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 03:15:26" (1/1) ... [2020-06-22 03:15:26,765 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-22 03:15:26,765 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-22 03:15:26,765 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-22 03:15:26,765 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-22 03:15:26,774 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 03:15:26" (1/1) ... [2020-06-22 03:15:26,775 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 03:15:26" (1/1) ... [2020-06-22 03:15:26,775 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 03:15:26" (1/1) ... [2020-06-22 03:15:26,776 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 03:15:26" (1/1) ... [2020-06-22 03:15:26,778 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 03:15:26" (1/1) ... [2020-06-22 03:15:26,783 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 03:15:26" (1/1) ... [2020-06-22 03:15:26,784 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 03:15:26" (1/1) ... [2020-06-22 03:15:26,785 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-22 03:15:26,785 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-22 03:15:26,786 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-22 03:15:26,786 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-22 03:15:26,787 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 03:15:26" (1/1) ... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 03:15:26,853 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-22 03:15:26,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-22 03:15:27,007 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-22 03:15:27,007 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. [2020-06-22 03:15:27,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 03:15:27 BoogieIcfgContainer [2020-06-22 03:15:27,009 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-22 03:15:27,009 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-22 03:15:27,009 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-22 03:15:27,011 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-22 03:15:27,012 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 03:15:27" (1/1) ... [2020-06-22 03:15:27,027 INFO L313 BlockEncoder]: Initial Icfg 10 locations, 15 edges [2020-06-22 03:15:27,029 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-22 03:15:27,030 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-22 03:15:27,030 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-22 03:15:27,031 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-22 03:15:27,032 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-22 03:15:27,033 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-22 03:15:27,033 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-22 03:15:27,051 INFO L185 BlockEncoder]: Using Use SBE [2020-06-22 03:15:27,071 INFO L200 BlockEncoder]: SBE split 6 edges [2020-06-22 03:15:27,076 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-06-22 03:15:27,078 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 03:15:27,088 INFO L100 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2020-06-22 03:15:27,090 INFO L70 RemoveSinkStates]: Removed 5 edges and 2 locations by removing sink states [2020-06-22 03:15:27,091 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 03:15:27,092 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 03:15:27,092 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-22 03:15:27,092 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 03:15:27,093 INFO L313 BlockEncoder]: Encoded RCFG 6 locations, 16 edges [2020-06-22 03:15:27,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 03:15:27 BasicIcfg [2020-06-22 03:15:27,093 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-22 03:15:27,094 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-22 03:15:27,094 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-22 03:15:27,098 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-22 03:15:27,098 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.06 03:15:26" (1/4) ... [2020-06-22 03:15:27,099 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42810351 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 03:15:27, skipping insertion in model container [2020-06-22 03:15:27,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 03:15:26" (2/4) ... [2020-06-22 03:15:27,099 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42810351 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 03:15:27, skipping insertion in model container [2020-06-22 03:15:27,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 03:15:27" (3/4) ... [2020-06-22 03:15:27,100 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42810351 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 03:15:27, skipping insertion in model container [2020-06-22 03:15:27,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 03:15:27" (4/4) ... [2020-06-22 03:15:27,102 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 03:15:27,112 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-22 03:15:27,121 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-06-22 03:15:27,139 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-06-22 03:15:27,167 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 03:15:27,168 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-22 03:15:27,168 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-22 03:15:27,168 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 03:15:27,168 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 03:15:27,169 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 03:15:27,169 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-22 03:15:27,169 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 03:15:27,169 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-22 03:15:27,183 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2020-06-22 03:15:27,189 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-06-22 03:15:27,192 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 6 states. [2020-06-22 03:15:27,244 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-06-22 03:15:27,245 INFO L448 ceAbstractionStarter]: For program point L29(lines 29 33) no Hoare annotation was computed. [2020-06-22 03:15:27,245 INFO L451 ceAbstractionStarter]: At program point L29-2(lines 18 34) the Hoare annotation is: true [2020-06-22 03:15:27,245 INFO L448 ceAbstractionStarter]: For program point L27(lines 27 33) no Hoare annotation was computed. [2020-06-22 03:15:27,245 INFO L448 ceAbstractionStarter]: For program point L20(lines 20 26) no Hoare annotation was computed. [2020-06-22 03:15:27,245 INFO L448 ceAbstractionStarter]: For program point L19(lines 19 33) no Hoare annotation was computed. [2020-06-22 03:15:27,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 03:15:27 BasicIcfg [2020-06-22 03:15:27,254 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-22 03:15:27,254 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-22 03:15:27,255 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-22 03:15:27,258 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-22 03:15:27,259 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 03:15:27,259 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.06 03:15:26" (1/5) ... [2020-06-22 03:15:27,259 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2fc312e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 03:15:27, skipping insertion in model container [2020-06-22 03:15:27,259 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 03:15:27,260 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 03:15:26" (2/5) ... [2020-06-22 03:15:27,260 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2fc312e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 03:15:27, skipping insertion in model container [2020-06-22 03:15:27,260 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 03:15:27,260 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 03:15:27" (3/5) ... [2020-06-22 03:15:27,261 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2fc312e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 03:15:27, skipping insertion in model container [2020-06-22 03:15:27,261 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 03:15:27,261 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 03:15:27" (4/5) ... [2020-06-22 03:15:27,261 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2fc312e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 03:15:27, skipping insertion in model container [2020-06-22 03:15:27,261 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 03:15:27,262 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 03:15:27" (5/5) ... [2020-06-22 03:15:27,263 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 03:15:27,292 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 03:15:27,292 INFO L374 BuchiCegarLoop]: Interprodecural is true [2020-06-22 03:15:27,292 INFO L375 BuchiCegarLoop]: Hoare is true [2020-06-22 03:15:27,292 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 03:15:27,293 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 03:15:27,293 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 03:15:27,293 INFO L379 BuchiCegarLoop]: Difference is false [2020-06-22 03:15:27,293 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 03:15:27,293 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-06-22 03:15:27,296 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2020-06-22 03:15:27,314 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-06-22 03:15:27,314 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 03:15:27,314 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 03:15:27,321 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 03:15:27,321 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 03:15:27,321 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2020-06-22 03:15:27,322 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2020-06-22 03:15:27,322 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-06-22 03:15:27,322 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 03:15:27,323 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 03:15:27,323 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 03:15:27,323 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 03:15:27,328 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [40] ULTIMATE.startENTRY-->L29-2: Formula: (and (= v_ULTIMATE.start_main_~tk~0_1 |v_ULTIMATE.start_main_#t~nondet5_4|) (= v_ULTIMATE.start_main_~j~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~an~0_1 |v_ULTIMATE.start_main_#t~nondet3_4|) (= v_ULTIMATE.start_main_~bn~0_1 |v_ULTIMATE.start_main_#t~nondet4_4|) (= v_ULTIMATE.start_main_~k~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|) (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_1, ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_1|, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_#t~nondet8=|v_ULTIMATE.start_main_#t~nondet8_1|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_1|, ULTIMATE.start_main_#t~nondet7=|v_ULTIMATE.start_main_#t~nondet7_1|, ULTIMATE.start_main_~tk~0=v_ULTIMATE.start_main_~tk~0_1, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_1, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet4_4|, |v_ULTIMATE.start_main_#t~nondet3_4|, |v_ULTIMATE.start_main_#t~nondet5_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_~k~0, ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_#t~nondet8, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_#t~nondet6, ULTIMATE.start_main_#t~nondet7, ULTIMATE.start_main_~tk~0, ULTIMATE.start_main_~j~0, ULTIMATE.start_main_~bn~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~an~0] 4#L29-2true [2020-06-22 03:15:27,329 INFO L796 eck$LassoCheckResult]: Loop: 4#L29-2true [60] L29-2-->L19: Formula: (and (<= v_ULTIMATE.start_main_~j~0_5 v_ULTIMATE.start_main_~bn~0_5) (<= (+ v_ULTIMATE.start_main_~tk~0_5 1) v_ULTIMATE.start_main_~k~0_5) (<= v_ULTIMATE.start_main_~an~0_5 v_ULTIMATE.start_main_~i~0_5)) InVars {ULTIMATE.start_main_~tk~0=v_ULTIMATE.start_main_~tk~0_5, ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_5, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_5, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_5, ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_5, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_5} OutVars{ULTIMATE.start_main_~tk~0=v_ULTIMATE.start_main_~tk~0_5, ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_5, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_5, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_5, ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_5, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_5} AuxVars[] AssignedVars[] 7#L19true [67] L19-->L27: Formula: (> v_ULTIMATE.start_main_~i~0_9 v_ULTIMATE.start_main_~an~0_7) InVars {ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9} OutVars{ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9} AuxVars[] AssignedVars[] 5#L27true [45] L27-->L29-2: Formula: (and (= v_ULTIMATE.start_main_~i~0_10 (+ v_ULTIMATE.start_main_~i~0_11 1)) (<= v_ULTIMATE.start_main_~bn~0_8 v_ULTIMATE.start_main_~j~0_10) (<= v_ULTIMATE.start_main_~i~0_11 v_ULTIMATE.start_main_~an~0_8)) InVars {ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_8, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_8} OutVars{ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_8, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 4#L29-2true [2020-06-22 03:15:27,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 03:15:27,335 INFO L82 PathProgramCache]: Analyzing trace with hash 71, now seen corresponding path program 1 times [2020-06-22 03:15:27,337 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 03:15:27,338 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 03:15:27,358 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 03:15:27,358 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 03:15:27,358 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 03:15:27,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 03:15:27,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 03:15:27,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 03:15:27,403 INFO L82 PathProgramCache]: Analyzing trace with hash 89573, now seen corresponding path program 1 times [2020-06-22 03:15:27,403 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 03:15:27,403 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 03:15:27,404 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 03:15:27,404 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 03:15:27,404 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 03:15:27,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 03:15:27,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 03:15:27,459 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 03:15:27,459 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-06-22 03:15:27,464 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-06-22 03:15:27,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-06-22 03:15:27,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-06-22 03:15:27,481 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 3 states. [2020-06-22 03:15:27,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 03:15:27,564 INFO L93 Difference]: Finished difference Result 10 states and 23 transitions. [2020-06-22 03:15:27,564 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-06-22 03:15:27,567 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 23 transitions. [2020-06-22 03:15:27,569 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 9 [2020-06-22 03:15:27,573 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 10 states and 23 transitions. [2020-06-22 03:15:27,574 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2020-06-22 03:15:27,574 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2020-06-22 03:15:27,575 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 23 transitions. [2020-06-22 03:15:27,575 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 03:15:27,575 INFO L706 BuchiCegarLoop]: Abstraction has 10 states and 23 transitions. [2020-06-22 03:15:27,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 23 transitions. [2020-06-22 03:15:27,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2020-06-22 03:15:27,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-06-22 03:15:27,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 23 transitions. [2020-06-22 03:15:27,605 INFO L729 BuchiCegarLoop]: Abstraction has 10 states and 23 transitions. [2020-06-22 03:15:27,605 INFO L609 BuchiCegarLoop]: Abstraction has 10 states and 23 transitions. [2020-06-22 03:15:27,606 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2020-06-22 03:15:27,606 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 23 transitions. [2020-06-22 03:15:27,606 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 9 [2020-06-22 03:15:27,606 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 03:15:27,607 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 03:15:27,607 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 03:15:27,607 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 03:15:27,608 INFO L794 eck$LassoCheckResult]: Stem: 25#ULTIMATE.startENTRY [40] ULTIMATE.startENTRY-->L29-2: Formula: (and (= v_ULTIMATE.start_main_~tk~0_1 |v_ULTIMATE.start_main_#t~nondet5_4|) (= v_ULTIMATE.start_main_~j~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~an~0_1 |v_ULTIMATE.start_main_#t~nondet3_4|) (= v_ULTIMATE.start_main_~bn~0_1 |v_ULTIMATE.start_main_#t~nondet4_4|) (= v_ULTIMATE.start_main_~k~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|) (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_1, ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_1|, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_#t~nondet8=|v_ULTIMATE.start_main_#t~nondet8_1|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_1|, ULTIMATE.start_main_#t~nondet7=|v_ULTIMATE.start_main_#t~nondet7_1|, ULTIMATE.start_main_~tk~0=v_ULTIMATE.start_main_~tk~0_1, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_1, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet4_4|, |v_ULTIMATE.start_main_#t~nondet3_4|, |v_ULTIMATE.start_main_#t~nondet5_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_~k~0, ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_#t~nondet8, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_#t~nondet6, ULTIMATE.start_main_#t~nondet7, ULTIMATE.start_main_~tk~0, ULTIMATE.start_main_~j~0, ULTIMATE.start_main_~bn~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~an~0] 26#L29-2 [2020-06-22 03:15:27,608 INFO L796 eck$LassoCheckResult]: Loop: 26#L29-2 [60] L29-2-->L19: Formula: (and (<= v_ULTIMATE.start_main_~j~0_5 v_ULTIMATE.start_main_~bn~0_5) (<= (+ v_ULTIMATE.start_main_~tk~0_5 1) v_ULTIMATE.start_main_~k~0_5) (<= v_ULTIMATE.start_main_~an~0_5 v_ULTIMATE.start_main_~i~0_5)) InVars {ULTIMATE.start_main_~tk~0=v_ULTIMATE.start_main_~tk~0_5, ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_5, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_5, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_5, ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_5, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_5} OutVars{ULTIMATE.start_main_~tk~0=v_ULTIMATE.start_main_~tk~0_5, ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_5, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_5, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_5, ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_5, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_5} AuxVars[] AssignedVars[] 27#L19 [49] L19-->L20: Formula: (and (<= v_ULTIMATE.start_main_~j~0_6 v_ULTIMATE.start_main_~bn~0_6) (<= v_ULTIMATE.start_main_~i~0_6 v_ULTIMATE.start_main_~an~0_6)) InVars {ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_6, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_6, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_6, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_6} OutVars{ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_6, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_6, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_6, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_6} AuxVars[] AssignedVars[] 32#L20 [69] L20-->L29-2: Formula: (and (< 0 |v_ULTIMATE.start_main_#t~nondet6_3|) (= v_ULTIMATE.start_main_~j~0_7 (+ v_ULTIMATE.start_main_~k~0_7 v_ULTIMATE.start_main_~j~0_8)) (= v_ULTIMATE.start_main_~k~0_6 |v_ULTIMATE.start_main_#t~nondet7_3|) (= v_ULTIMATE.start_main_~tk~0_6 v_ULTIMATE.start_main_~k~0_7)) InVars {ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_7, ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_3|, ULTIMATE.start_main_#t~nondet7=|v_ULTIMATE.start_main_#t~nondet7_3|, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_8} OutVars{ULTIMATE.start_main_~tk~0=v_ULTIMATE.start_main_~tk~0_6, ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_6, ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_2|, ULTIMATE.start_main_#t~nondet7=|v_ULTIMATE.start_main_#t~nondet7_2|, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~tk~0, ULTIMATE.start_main_~k~0, ULTIMATE.start_main_~j~0, ULTIMATE.start_main_#t~nondet6, ULTIMATE.start_main_#t~nondet7] 26#L29-2 [2020-06-22 03:15:27,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 03:15:27,608 INFO L82 PathProgramCache]: Analyzing trace with hash 71, now seen corresponding path program 2 times [2020-06-22 03:15:27,608 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 03:15:27,609 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 03:15:27,609 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 03:15:27,610 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 03:15:27,610 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 03:15:27,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 03:15:27,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 03:15:27,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 03:15:27,617 INFO L82 PathProgramCache]: Analyzing trace with hash 89039, now seen corresponding path program 1 times [2020-06-22 03:15:27,617 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 03:15:27,617 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 03:15:27,618 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 03:15:27,618 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 03:15:27,618 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 03:15:27,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 03:15:27,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 03:15:27,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 03:15:27,629 INFO L82 PathProgramCache]: Analyzing trace with hash 2174409, now seen corresponding path program 1 times [2020-06-22 03:15:27,629 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 03:15:27,629 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 03:15:27,630 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 03:15:27,630 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 03:15:27,630 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 03:15:27,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 03:15:27,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 03:15:27,704 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 03:15:27,705 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 03:15:27,706 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 03:15:27,706 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 03:15:27,706 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 03:15:27,706 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 03:15:27,706 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 03:15:27,706 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 03:15:27,706 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 03:15:27,707 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 03:15:27,707 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 03:15:27,725 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 03:15:27,733 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 03:15:27,751 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 03:15:27,842 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 03:15:27,843 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 03:15:27,849 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 03:15:27,849 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 03:15:27,882 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 03:15:27,882 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet6=1} Honda state: {ULTIMATE.start_main_#t~nondet6=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 03:15:27,889 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 03:15:27,889 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 03:15:27,922 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 03:15:27,923 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 03:15:30,354 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 03:15:30,358 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 03:15:30,358 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 03:15:30,358 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 03:15:30,359 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 03:15:30,359 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 03:15:30,359 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 03:15:30,359 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 03:15:30,359 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 03:15:30,359 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 03:15:30,359 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 03:15:30,359 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 03:15:30,361 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 03:15:30,365 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 03:15:30,378 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 03:15:30,449 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 03:15:30,455 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 03:15:30,462 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 03:15:30,463 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 03:15:30,464 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 03:15:30,464 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 03:15:30,464 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 03:15:30,465 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 03:15:30,468 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 03:15:30,468 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 03:15:30,474 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 03:15:30,474 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 03:15:30,475 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 03:15:30,475 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 03:15:30,475 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 03:15:30,475 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 03:15:30,476 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 03:15:30,477 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 03:15:30,477 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 03:15:30,489 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 03:15:30,490 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 03:15:30,491 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 03:15:30,491 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 03:15:30,491 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 03:15:30,491 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 03:15:30,491 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 03:15:30,492 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 03:15:30,492 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 03:15:30,493 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 03:15:30,494 INFO L497 LassoAnalysis]: Using template '2-nested'. [2020-06-22 03:15:30,494 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 03:15:30,495 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 03:15:30,495 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 03:15:30,495 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 03:15:30,495 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 03:15:30,495 INFO L207 nArgumentSynthesizer]: 3 template conjuncts. [2020-06-22 03:15:30,496 INFO L402 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-06-22 03:15:30,496 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 03:15:30,500 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 03:15:30,501 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 03:15:30,501 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 03:15:30,501 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 03:15:30,502 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 03:15:30,502 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 03:15:30,502 INFO L207 nArgumentSynthesizer]: 3 template conjuncts. [2020-06-22 03:15:30,504 INFO L402 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-06-22 03:15:30,504 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 03:15:30,522 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 03:15:30,536 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-06-22 03:15:30,536 INFO L444 ModelExtractionUtils]: 7 out of 13 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 03:15:30,538 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 03:15:30,539 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 03:15:30,539 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 03:15:30,539 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = -2*ULTIMATE.start_main_~tk~0 f1 = 2*ULTIMATE.start_main_~bn~0 - 2*ULTIMATE.start_main_~j~0 + 1 Supporting invariants [] [2020-06-22 03:15:30,541 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 03:15:30,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 03:15:30,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 03:15:30,595 INFO L256 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 03:15:30,596 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 03:15:30,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 03:15:30,612 INFO L256 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 7 conjunts are in the unsatisfiable core [2020-06-22 03:15:30,612 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 03:15:30,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 03:15:30,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 03:15:30,927 INFO L137 LoopCannibalizer]: termination argument not suffcient for all loop shiftings [2020-06-22 03:15:30,928 INFO L98 LoopCannibalizer]: 9 predicates before loop cannibalization 9 predicates after loop cannibalization [2020-06-22 03:15:30,931 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 9 loop predicates [2020-06-22 03:15:30,932 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 10 states and 23 transitions. cyclomatic complexity: 15 Second operand 3 states. [2020-06-22 03:15:31,311 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 10 states and 23 transitions. cyclomatic complexity: 15. Second operand 3 states. Result 42 states and 98 transitions. Complement of second has 7 states. [2020-06-22 03:15:31,312 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-06-22 03:15:31,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-06-22 03:15:31,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 60 transitions. [2020-06-22 03:15:31,316 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 60 transitions. Stem has 1 letters. Loop has 3 letters. [2020-06-22 03:15:31,317 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 03:15:31,317 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 60 transitions. Stem has 4 letters. Loop has 3 letters. [2020-06-22 03:15:31,317 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 03:15:31,317 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 60 transitions. Stem has 1 letters. Loop has 6 letters. [2020-06-22 03:15:31,318 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 03:15:31,324 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 98 transitions. [2020-06-22 03:15:31,327 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-06-22 03:15:31,329 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 19 states and 45 transitions. [2020-06-22 03:15:31,329 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2020-06-22 03:15:31,329 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2020-06-22 03:15:31,329 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 45 transitions. [2020-06-22 03:15:31,329 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 03:15:31,329 INFO L706 BuchiCegarLoop]: Abstraction has 19 states and 45 transitions. [2020-06-22 03:15:31,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 45 transitions. [2020-06-22 03:15:31,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 17. [2020-06-22 03:15:31,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-06-22 03:15:31,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 42 transitions. [2020-06-22 03:15:31,333 INFO L729 BuchiCegarLoop]: Abstraction has 17 states and 42 transitions. [2020-06-22 03:15:31,333 INFO L609 BuchiCegarLoop]: Abstraction has 17 states and 42 transitions. [2020-06-22 03:15:31,333 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2020-06-22 03:15:31,333 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 42 transitions. [2020-06-22 03:15:31,334 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-06-22 03:15:31,334 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 03:15:31,334 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 03:15:31,335 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 03:15:31,335 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 03:15:31,335 INFO L794 eck$LassoCheckResult]: Stem: 127#ULTIMATE.startENTRY [40] ULTIMATE.startENTRY-->L29-2: Formula: (and (= v_ULTIMATE.start_main_~tk~0_1 |v_ULTIMATE.start_main_#t~nondet5_4|) (= v_ULTIMATE.start_main_~j~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~an~0_1 |v_ULTIMATE.start_main_#t~nondet3_4|) (= v_ULTIMATE.start_main_~bn~0_1 |v_ULTIMATE.start_main_#t~nondet4_4|) (= v_ULTIMATE.start_main_~k~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|) (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_1, ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_1|, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_#t~nondet8=|v_ULTIMATE.start_main_#t~nondet8_1|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_1|, ULTIMATE.start_main_#t~nondet7=|v_ULTIMATE.start_main_#t~nondet7_1|, ULTIMATE.start_main_~tk~0=v_ULTIMATE.start_main_~tk~0_1, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_1, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet4_4|, |v_ULTIMATE.start_main_#t~nondet3_4|, |v_ULTIMATE.start_main_#t~nondet5_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_~k~0, ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_#t~nondet8, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_#t~nondet6, ULTIMATE.start_main_#t~nondet7, ULTIMATE.start_main_~tk~0, ULTIMATE.start_main_~j~0, ULTIMATE.start_main_~bn~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~an~0] 128#L29-2 [61] L29-2-->L19: Formula: (and (<= v_ULTIMATE.start_main_~j~0_5 v_ULTIMATE.start_main_~bn~0_5) (<= (+ v_ULTIMATE.start_main_~tk~0_5 1) v_ULTIMATE.start_main_~k~0_5) (<= v_ULTIMATE.start_main_~i~0_5 v_ULTIMATE.start_main_~an~0_5)) InVars {ULTIMATE.start_main_~tk~0=v_ULTIMATE.start_main_~tk~0_5, ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_5, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_5, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_5, ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_5, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_5} OutVars{ULTIMATE.start_main_~tk~0=v_ULTIMATE.start_main_~tk~0_5, ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_5, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_5, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_5, ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_5, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_5} AuxVars[] AssignedVars[] 135#L19 [2020-06-22 03:15:31,336 INFO L796 eck$LassoCheckResult]: Loop: 135#L19 [49] L19-->L20: Formula: (and (<= v_ULTIMATE.start_main_~j~0_6 v_ULTIMATE.start_main_~bn~0_6) (<= v_ULTIMATE.start_main_~i~0_6 v_ULTIMATE.start_main_~an~0_6)) InVars {ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_6, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_6, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_6, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_6} OutVars{ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_6, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_6, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_6, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_6} AuxVars[] AssignedVars[] 142#L20 [54] L20-->L29-2: Formula: (and (= 0 |v_ULTIMATE.start_main_#t~nondet6_5|) (= v_ULTIMATE.start_main_~i~0_7 (+ v_ULTIMATE.start_main_~i~0_8 1))) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8, ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_5|} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7, ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0, ULTIMATE.start_main_#t~nondet6] 139#L29-2 [60] L29-2-->L19: Formula: (and (<= v_ULTIMATE.start_main_~j~0_5 v_ULTIMATE.start_main_~bn~0_5) (<= (+ v_ULTIMATE.start_main_~tk~0_5 1) v_ULTIMATE.start_main_~k~0_5) (<= v_ULTIMATE.start_main_~an~0_5 v_ULTIMATE.start_main_~i~0_5)) InVars {ULTIMATE.start_main_~tk~0=v_ULTIMATE.start_main_~tk~0_5, ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_5, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_5, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_5, ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_5, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_5} OutVars{ULTIMATE.start_main_~tk~0=v_ULTIMATE.start_main_~tk~0_5, ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_5, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_5, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_5, ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_5, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_5} AuxVars[] AssignedVars[] 135#L19 [2020-06-22 03:15:31,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 03:15:31,336 INFO L82 PathProgramCache]: Analyzing trace with hash 2262, now seen corresponding path program 1 times [2020-06-22 03:15:31,336 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 03:15:31,336 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 03:15:31,337 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 03:15:31,337 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 03:15:31,337 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 03:15:31,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 03:15:31,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 03:15:31,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 03:15:31,348 INFO L82 PathProgramCache]: Analyzing trace with hash 78614, now seen corresponding path program 1 times [2020-06-22 03:15:31,349 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 03:15:31,349 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 03:15:31,349 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 03:15:31,350 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 03:15:31,350 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 03:15:31,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 03:15:31,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 03:15:31,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 03:15:31,356 INFO L82 PathProgramCache]: Analyzing trace with hash 67436065, now seen corresponding path program 1 times [2020-06-22 03:15:31,356 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 03:15:31,356 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 03:15:31,357 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 03:15:31,357 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 03:15:31,357 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 03:15:31,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 03:15:31,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 03:15:31,401 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 03:15:31,401 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 03:15:31,401 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 03:15:31,401 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 03:15:31,401 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 03:15:31,401 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 03:15:31,402 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 03:15:31,402 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 03:15:31,402 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-06-22 03:15:31,402 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 03:15:31,402 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 03:15:31,404 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 03:15:31,407 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 03:15:31,414 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 03:15:31,424 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 03:15:31,486 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 03:15:31,486 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 03:15:31,492 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 03:15:31,492 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 03:15:31,497 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 03:15:31,497 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet6=0} Honda state: {ULTIMATE.start_main_#t~nondet6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 03:15:31,528 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 03:15:31,528 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 03:15:31,557 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 03:15:31,557 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~j~0=0, ULTIMATE.start_main_~bn~0=0} Honda state: {ULTIMATE.start_main_~j~0=0, ULTIMATE.start_main_~bn~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 03:15:31,565 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 03:15:31,565 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 03:15:31,596 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 03:15:31,596 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 03:15:31,937 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 03:15:31,939 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 03:15:31,940 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 03:15:31,940 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 03:15:31,940 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 03:15:31,940 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 03:15:31,940 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 03:15:31,940 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 03:15:31,940 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 03:15:31,941 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-06-22 03:15:31,941 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 03:15:31,941 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 03:15:31,942 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 03:15:31,945 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 03:15:31,957 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 03:15:31,966 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 03:15:32,015 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 03:15:32,015 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 03:15:32,016 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 03:15:32,017 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 03:15:32,017 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 03:15:32,017 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 03:15:32,017 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 03:15:32,017 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 03:15:32,018 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 03:15:32,018 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 03:15:32,019 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 03:15:32,020 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 03:15:32,020 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 03:15:32,020 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 03:15:32,020 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 03:15:32,021 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 03:15:32,021 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 03:15:32,021 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 03:15:32,021 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 03:15:32,022 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 03:15:32,022 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 03:15:32,023 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 03:15:32,023 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 03:15:32,023 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 03:15:32,023 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 03:15:32,023 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 03:15:32,024 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 03:15:32,025 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 03:15:32,028 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 03:15:32,031 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 03:15:32,031 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2020-06-22 03:15:32,032 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 03:15:32,032 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 03:15:32,032 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 03:15:32,032 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~an~0) = -2*ULTIMATE.start_main_~i~0 + 2*ULTIMATE.start_main_~an~0 + 1 Supporting invariants [] [2020-06-22 03:15:32,033 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 03:15:32,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 03:15:32,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 03:15:32,053 INFO L256 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 03:15:32,053 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 03:15:32,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 03:15:32,057 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 03:15:32,058 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 03:15:32,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 03:15:32,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 03:15:32,120 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 03:15:32,121 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 03:15:32,126 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-06-22 03:15:32,126 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 [2020-06-22 03:15:32,126 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 17 states and 42 transitions. cyclomatic complexity: 28 Second operand 4 states. [2020-06-22 03:15:32,199 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 17 states and 42 transitions. cyclomatic complexity: 28. Second operand 4 states. Result 65 states and 141 transitions. Complement of second has 10 states. [2020-06-22 03:15:32,199 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 2 accepting loop states [2020-06-22 03:15:32,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-06-22 03:15:32,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 31 transitions. [2020-06-22 03:15:32,200 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 2 letters. Loop has 3 letters. [2020-06-22 03:15:32,201 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 03:15:32,201 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 5 letters. Loop has 3 letters. [2020-06-22 03:15:32,201 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 03:15:32,201 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 2 letters. Loop has 6 letters. [2020-06-22 03:15:32,202 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 03:15:32,204 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 65 states and 141 transitions. [2020-06-22 03:15:32,208 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-06-22 03:15:32,209 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 65 states to 17 states and 34 transitions. [2020-06-22 03:15:32,209 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2020-06-22 03:15:32,209 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2020-06-22 03:15:32,209 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 34 transitions. [2020-06-22 03:15:32,209 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 03:15:32,209 INFO L706 BuchiCegarLoop]: Abstraction has 17 states and 34 transitions. [2020-06-22 03:15:32,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 34 transitions. [2020-06-22 03:15:32,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2020-06-22 03:15:32,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-06-22 03:15:32,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 34 transitions. [2020-06-22 03:15:32,212 INFO L729 BuchiCegarLoop]: Abstraction has 17 states and 34 transitions. [2020-06-22 03:15:32,212 INFO L609 BuchiCegarLoop]: Abstraction has 17 states and 34 transitions. [2020-06-22 03:15:32,212 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2020-06-22 03:15:32,212 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 34 transitions. [2020-06-22 03:15:32,213 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-06-22 03:15:32,213 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 03:15:32,213 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 03:15:32,213 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 03:15:32,213 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 03:15:32,214 INFO L794 eck$LassoCheckResult]: Stem: 263#ULTIMATE.startENTRY [40] ULTIMATE.startENTRY-->L29-2: Formula: (and (= v_ULTIMATE.start_main_~tk~0_1 |v_ULTIMATE.start_main_#t~nondet5_4|) (= v_ULTIMATE.start_main_~j~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~an~0_1 |v_ULTIMATE.start_main_#t~nondet3_4|) (= v_ULTIMATE.start_main_~bn~0_1 |v_ULTIMATE.start_main_#t~nondet4_4|) (= v_ULTIMATE.start_main_~k~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|) (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_1, ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_1|, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_#t~nondet8=|v_ULTIMATE.start_main_#t~nondet8_1|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_1|, ULTIMATE.start_main_#t~nondet7=|v_ULTIMATE.start_main_#t~nondet7_1|, ULTIMATE.start_main_~tk~0=v_ULTIMATE.start_main_~tk~0_1, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_1, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet4_4|, |v_ULTIMATE.start_main_#t~nondet3_4|, |v_ULTIMATE.start_main_#t~nondet5_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_~k~0, ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_#t~nondet8, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_#t~nondet6, ULTIMATE.start_main_#t~nondet7, ULTIMATE.start_main_~tk~0, ULTIMATE.start_main_~j~0, ULTIMATE.start_main_~bn~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~an~0] 264#L29-2 [60] L29-2-->L19: Formula: (and (<= v_ULTIMATE.start_main_~j~0_5 v_ULTIMATE.start_main_~bn~0_5) (<= (+ v_ULTIMATE.start_main_~tk~0_5 1) v_ULTIMATE.start_main_~k~0_5) (<= v_ULTIMATE.start_main_~an~0_5 v_ULTIMATE.start_main_~i~0_5)) InVars {ULTIMATE.start_main_~tk~0=v_ULTIMATE.start_main_~tk~0_5, ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_5, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_5, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_5, ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_5, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_5} OutVars{ULTIMATE.start_main_~tk~0=v_ULTIMATE.start_main_~tk~0_5, ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_5, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_5, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_5, ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_5, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_5} AuxVars[] AssignedVars[] 272#L19 [2020-06-22 03:15:32,214 INFO L796 eck$LassoCheckResult]: Loop: 272#L19 [49] L19-->L20: Formula: (and (<= v_ULTIMATE.start_main_~j~0_6 v_ULTIMATE.start_main_~bn~0_6) (<= v_ULTIMATE.start_main_~i~0_6 v_ULTIMATE.start_main_~an~0_6)) InVars {ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_6, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_6, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_6, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_6} OutVars{ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_6, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_6, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_6, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_6} AuxVars[] AssignedVars[] 276#L20 [54] L20-->L29-2: Formula: (and (= 0 |v_ULTIMATE.start_main_#t~nondet6_5|) (= v_ULTIMATE.start_main_~i~0_7 (+ v_ULTIMATE.start_main_~i~0_8 1))) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8, ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_5|} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7, ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0, ULTIMATE.start_main_#t~nondet6] 271#L29-2 [60] L29-2-->L19: Formula: (and (<= v_ULTIMATE.start_main_~j~0_5 v_ULTIMATE.start_main_~bn~0_5) (<= (+ v_ULTIMATE.start_main_~tk~0_5 1) v_ULTIMATE.start_main_~k~0_5) (<= v_ULTIMATE.start_main_~an~0_5 v_ULTIMATE.start_main_~i~0_5)) InVars {ULTIMATE.start_main_~tk~0=v_ULTIMATE.start_main_~tk~0_5, ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_5, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_5, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_5, ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_5, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_5} OutVars{ULTIMATE.start_main_~tk~0=v_ULTIMATE.start_main_~tk~0_5, ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_5, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_5, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_5, ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_5, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_5} AuxVars[] AssignedVars[] 272#L19 [2020-06-22 03:15:32,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 03:15:32,214 INFO L82 PathProgramCache]: Analyzing trace with hash 2261, now seen corresponding path program 1 times [2020-06-22 03:15:32,214 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 03:15:32,215 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 03:15:32,216 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 03:15:32,216 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 03:15:32,216 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 03:15:32,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 03:15:32,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 03:15:32,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 03:15:32,226 INFO L82 PathProgramCache]: Analyzing trace with hash 78614, now seen corresponding path program 2 times [2020-06-22 03:15:32,226 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 03:15:32,226 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 03:15:32,227 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 03:15:32,227 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 03:15:32,227 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 03:15:32,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 03:15:32,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 03:15:32,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 03:15:32,233 INFO L82 PathProgramCache]: Analyzing trace with hash 67406274, now seen corresponding path program 1 times [2020-06-22 03:15:32,233 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 03:15:32,233 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 03:15:32,234 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 03:15:32,234 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 03:15:32,234 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 03:15:32,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 03:15:32,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 03:15:32,265 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 03:15:32,266 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 03:15:32,266 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 03:15:32,266 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 03:15:32,266 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 03:15:32,266 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 03:15:32,266 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 03:15:32,266 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 03:15:32,266 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2020-06-22 03:15:32,267 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 03:15:32,267 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 03:15:32,268 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 03:15:32,270 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 03:15:32,273 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 03:15:32,279 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 03:15:32,310 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 03:15:32,310 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 03:15:32,313 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 03:15:32,313 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 03:15:32,317 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 03:15:32,318 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet6=0} Honda state: {ULTIMATE.start_main_#t~nondet6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 03:15:32,345 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 03:15:32,345 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 03:15:32,372 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 03:15:32,372 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~j~0=0, ULTIMATE.start_main_~bn~0=0} Honda state: {ULTIMATE.start_main_~j~0=0, ULTIMATE.start_main_~bn~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 03:15:32,377 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 03:15:32,377 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 03:15:32,407 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 03:15:32,407 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 03:15:32,732 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 03:15:32,735 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 03:15:32,735 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 03:15:32,735 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 03:15:32,735 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 03:15:32,735 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 03:15:32,735 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 03:15:32,735 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 03:15:32,736 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 03:15:32,736 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2020-06-22 03:15:32,736 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 03:15:32,736 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 03:15:32,737 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 03:15:32,742 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 03:15:32,745 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 03:15:32,752 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 03:15:32,784 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 03:15:32,784 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 03:15:32,784 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 03:15:32,785 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 03:15:32,785 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 03:15:32,785 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 03:15:32,786 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 03:15:32,786 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 03:15:32,786 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 03:15:32,786 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 03:15:32,788 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 03:15:32,788 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 03:15:32,788 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 03:15:32,788 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 03:15:32,789 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 03:15:32,789 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 03:15:32,789 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 03:15:32,789 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 03:15:32,790 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 03:15:32,790 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 03:15:32,791 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 03:15:32,791 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 03:15:32,791 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 03:15:32,791 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 03:15:32,791 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 03:15:32,791 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 03:15:32,792 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 03:15:32,792 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 03:15:32,795 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 03:15:32,798 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 03:15:32,798 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2020-06-22 03:15:32,798 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 03:15:32,799 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 03:15:32,799 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 03:15:32,799 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~an~0, ULTIMATE.start_main_~i~0) = 2*ULTIMATE.start_main_~an~0 - 2*ULTIMATE.start_main_~i~0 + 1 Supporting invariants [] [2020-06-22 03:15:32,799 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 03:15:32,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 03:15:32,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 03:15:32,818 INFO L256 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 03:15:32,818 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 03:15:32,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 03:15:32,822 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 03:15:32,823 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 03:15:32,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 03:15:32,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 03:15:32,860 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 03:15:32,861 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 03:15:32,865 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-06-22 03:15:32,865 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 [2020-06-22 03:15:32,866 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 17 states and 34 transitions. cyclomatic complexity: 20 Second operand 4 states. [2020-06-22 03:15:32,918 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 17 states and 34 transitions. cyclomatic complexity: 20. Second operand 4 states. Result 62 states and 114 transitions. Complement of second has 8 states. [2020-06-22 03:15:32,919 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-06-22 03:15:32,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-06-22 03:15:32,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 28 transitions. [2020-06-22 03:15:32,920 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 28 transitions. Stem has 2 letters. Loop has 3 letters. [2020-06-22 03:15:32,920 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 03:15:32,920 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 28 transitions. Stem has 5 letters. Loop has 3 letters. [2020-06-22 03:15:32,920 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 03:15:32,921 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 28 transitions. Stem has 2 letters. Loop has 6 letters. [2020-06-22 03:15:32,921 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 03:15:32,923 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 62 states and 114 transitions. [2020-06-22 03:15:32,925 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-06-22 03:15:32,926 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 62 states to 17 states and 26 transitions. [2020-06-22 03:15:32,926 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2020-06-22 03:15:32,926 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2020-06-22 03:15:32,926 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 26 transitions. [2020-06-22 03:15:32,927 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 03:15:32,927 INFO L706 BuchiCegarLoop]: Abstraction has 17 states and 26 transitions. [2020-06-22 03:15:32,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 26 transitions. [2020-06-22 03:15:32,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2020-06-22 03:15:32,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-06-22 03:15:32,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 26 transitions. [2020-06-22 03:15:32,929 INFO L729 BuchiCegarLoop]: Abstraction has 17 states and 26 transitions. [2020-06-22 03:15:32,929 INFO L609 BuchiCegarLoop]: Abstraction has 17 states and 26 transitions. [2020-06-22 03:15:32,929 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2020-06-22 03:15:32,929 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 26 transitions. [2020-06-22 03:15:32,930 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-06-22 03:15:32,930 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 03:15:32,930 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 03:15:32,930 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 03:15:32,930 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 03:15:32,931 INFO L794 eck$LassoCheckResult]: Stem: 390#ULTIMATE.startENTRY [40] ULTIMATE.startENTRY-->L29-2: Formula: (and (= v_ULTIMATE.start_main_~tk~0_1 |v_ULTIMATE.start_main_#t~nondet5_4|) (= v_ULTIMATE.start_main_~j~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~an~0_1 |v_ULTIMATE.start_main_#t~nondet3_4|) (= v_ULTIMATE.start_main_~bn~0_1 |v_ULTIMATE.start_main_#t~nondet4_4|) (= v_ULTIMATE.start_main_~k~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|) (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_1, ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_1|, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_#t~nondet8=|v_ULTIMATE.start_main_#t~nondet8_1|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_1|, ULTIMATE.start_main_#t~nondet7=|v_ULTIMATE.start_main_#t~nondet7_1|, ULTIMATE.start_main_~tk~0=v_ULTIMATE.start_main_~tk~0_1, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_1, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet4_4|, |v_ULTIMATE.start_main_#t~nondet3_4|, |v_ULTIMATE.start_main_#t~nondet5_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_~k~0, ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_#t~nondet8, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_#t~nondet6, ULTIMATE.start_main_#t~nondet7, ULTIMATE.start_main_~tk~0, ULTIMATE.start_main_~j~0, ULTIMATE.start_main_~bn~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~an~0] 391#L29-2 [62] L29-2-->L19: Formula: (and (<= v_ULTIMATE.start_main_~bn~0_5 v_ULTIMATE.start_main_~j~0_5) (<= (+ v_ULTIMATE.start_main_~tk~0_5 1) v_ULTIMATE.start_main_~k~0_5) (<= v_ULTIMATE.start_main_~i~0_5 v_ULTIMATE.start_main_~an~0_5)) InVars {ULTIMATE.start_main_~tk~0=v_ULTIMATE.start_main_~tk~0_5, ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_5, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_5, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_5, ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_5, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_5} OutVars{ULTIMATE.start_main_~tk~0=v_ULTIMATE.start_main_~tk~0_5, ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_5, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_5, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_5, ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_5, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_5} AuxVars[] AssignedVars[] 405#L19 [2020-06-22 03:15:32,931 INFO L796 eck$LassoCheckResult]: Loop: 405#L19 [68] L19-->L27: Formula: (> v_ULTIMATE.start_main_~j~0_9 v_ULTIMATE.start_main_~bn~0_7) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_9, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_7} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_9, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_7} AuxVars[] AssignedVars[] 392#L27 [45] L27-->L29-2: Formula: (and (= v_ULTIMATE.start_main_~i~0_10 (+ v_ULTIMATE.start_main_~i~0_11 1)) (<= v_ULTIMATE.start_main_~bn~0_8 v_ULTIMATE.start_main_~j~0_10) (<= v_ULTIMATE.start_main_~i~0_11 v_ULTIMATE.start_main_~an~0_8)) InVars {ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_8, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_8} OutVars{ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_8, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 394#L29-2 [62] L29-2-->L19: Formula: (and (<= v_ULTIMATE.start_main_~bn~0_5 v_ULTIMATE.start_main_~j~0_5) (<= (+ v_ULTIMATE.start_main_~tk~0_5 1) v_ULTIMATE.start_main_~k~0_5) (<= v_ULTIMATE.start_main_~i~0_5 v_ULTIMATE.start_main_~an~0_5)) InVars {ULTIMATE.start_main_~tk~0=v_ULTIMATE.start_main_~tk~0_5, ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_5, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_5, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_5, ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_5, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_5} OutVars{ULTIMATE.start_main_~tk~0=v_ULTIMATE.start_main_~tk~0_5, ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_5, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_5, ULTIMATE.start_main_~bn~0=v_ULTIMATE.start_main_~bn~0_5, ULTIMATE.start_main_~an~0=v_ULTIMATE.start_main_~an~0_5, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_5} AuxVars[] AssignedVars[] 405#L19 [2020-06-22 03:15:32,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 03:15:32,931 INFO L82 PathProgramCache]: Analyzing trace with hash 2263, now seen corresponding path program 1 times [2020-06-22 03:15:32,931 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 03:15:32,931 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 03:15:32,932 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 03:15:32,932 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 03:15:32,932 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 03:15:32,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 03:15:32,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 03:15:32,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 03:15:32,941 INFO L82 PathProgramCache]: Analyzing trace with hash 96596, now seen corresponding path program 1 times [2020-06-22 03:15:32,941 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 03:15:32,941 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 03:15:32,942 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 03:15:32,942 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 03:15:32,942 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 03:15:32,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 03:15:32,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 03:15:32,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 03:15:32,947 INFO L82 PathProgramCache]: Analyzing trace with hash 67483838, now seen corresponding path program 1 times [2020-06-22 03:15:32,947 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 03:15:32,947 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 03:15:32,948 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 03:15:32,948 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 03:15:32,948 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 03:15:32,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 03:15:32,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 03:15:32,986 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 03:15:32,986 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 03:15:32,986 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 03:15:32,986 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 03:15:32,986 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 03:15:32,987 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 03:15:32,987 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 03:15:32,987 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 03:15:32,987 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration5_Loop [2020-06-22 03:15:32,987 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 03:15:32,987 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 03:15:32,988 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 03:15:32,992 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 03:15:32,995 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 03:15:33,030 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 03:15:33,030 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 03:15:33,037 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 03:15:33,037 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 03:15:33,064 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 03:15:33,064 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~j~0=1, ULTIMATE.start_main_~bn~0=0} Honda state: {ULTIMATE.start_main_~j~0=1, ULTIMATE.start_main_~bn~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 03:15:33,069 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 03:15:33,069 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 03:15:33,096 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 03:15:33,096 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~k~0=1, ULTIMATE.start_main_~tk~0=0} Honda state: {ULTIMATE.start_main_~k~0=1, ULTIMATE.start_main_~tk~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 03:15:33,100 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 03:15:33,101 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-06-22 03:15:33,136 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 03:15:33,137 INFO L163 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 03:15:33,611 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 03:15:33,613 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 03:15:33,613 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 03:15:33,614 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 03:15:33,614 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 03:15:33,614 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 03:15:33,614 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 03:15:33,614 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 03:15:33,614 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 03:15:33,614 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration5_Loop [2020-06-22 03:15:33,614 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 03:15:33,614 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 03:15:33,615 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 03:15:33,618 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 03:15:33,621 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 03:15:33,644 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 03:15:33,645 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 03:15:33,645 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 03:15:33,646 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 03:15:33,646 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 03:15:33,646 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 03:15:33,646 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 03:15:33,646 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 03:15:33,647 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 03:15:33,647 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 03:15:33,648 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 03:15:33,648 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 03:15:33,649 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 03:15:33,649 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 03:15:33,649 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 03:15:33,649 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 03:15:33,649 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 03:15:33,650 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 03:15:33,650 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 03:15:33,651 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 03:15:33,651 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 03:15:33,651 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 03:15:33,651 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 03:15:33,652 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 03:15:33,652 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 03:15:33,652 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 03:15:33,652 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 03:15:33,652 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 03:15:33,655 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 03:15:33,658 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-06-22 03:15:33,658 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 03:15:33,658 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 03:15:33,658 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 03:15:33,659 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 03:15:33,659 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~an~0, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~an~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2020-06-22 03:15:33,659 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 03:15:33,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 03:15:33,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 03:15:33,682 INFO L256 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 03:15:33,682 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 03:15:33,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 03:15:33,686 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 03:15:33,687 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 03:15:33,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 03:15:33,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 03:15:33,699 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 03:15:33,699 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 03:15:33,726 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-06-22 03:15:33,727 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 [2020-06-22 03:15:33,727 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 17 states and 26 transitions. cyclomatic complexity: 12 Second operand 4 states. [2020-06-22 03:15:33,776 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 17 states and 26 transitions. cyclomatic complexity: 12. Second operand 4 states. Result 41 states and 66 transitions. Complement of second has 8 states. [2020-06-22 03:15:33,777 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 2 accepting loop states [2020-06-22 03:15:33,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-06-22 03:15:33,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 25 transitions. [2020-06-22 03:15:33,777 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 2 letters. Loop has 3 letters. [2020-06-22 03:15:33,778 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 03:15:33,778 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 5 letters. Loop has 3 letters. [2020-06-22 03:15:33,778 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 03:15:33,778 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 2 letters. Loop has 6 letters. [2020-06-22 03:15:33,779 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 03:15:33,780 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 41 states and 66 transitions. [2020-06-22 03:15:33,781 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 03:15:33,782 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 41 states to 0 states and 0 transitions. [2020-06-22 03:15:33,782 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-06-22 03:15:33,782 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-06-22 03:15:33,782 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-06-22 03:15:33,782 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 03:15:33,782 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 03:15:33,782 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 03:15:33,782 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 03:15:33,782 INFO L442 BuchiCegarLoop]: ======== Iteration 6============ [2020-06-22 03:15:33,783 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-06-22 03:15:33,783 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 03:15:33,783 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-06-22 03:15:33,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 03:15:33 BasicIcfg [2020-06-22 03:15:33,789 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-22 03:15:33,790 INFO L168 Benchmark]: Toolchain (without parser) took 7364.69 ms. Allocated memory was 649.6 MB in the beginning and 749.7 MB in the end (delta: 100.1 MB). Free memory was 564.2 MB in the beginning and 543.1 MB in the end (delta: 21.2 MB). Peak memory consumption was 121.3 MB. Max. memory is 50.3 GB. [2020-06-22 03:15:33,791 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 586.9 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 03:15:33,792 INFO L168 Benchmark]: CACSL2BoogieTranslator took 301.42 ms. Allocated memory was 649.6 MB in the beginning and 682.1 MB in the end (delta: 32.5 MB). Free memory was 564.2 MB in the beginning and 648.3 MB in the end (delta: -84.1 MB). Peak memory consumption was 30.2 MB. Max. memory is 50.3 GB. [2020-06-22 03:15:33,792 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.00 ms. Allocated memory is still 682.1 MB. Free memory was 648.3 MB in the beginning and 647.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-06-22 03:15:33,793 INFO L168 Benchmark]: Boogie Preprocessor took 20.17 ms. Allocated memory is still 682.1 MB. Free memory was 647.0 MB in the beginning and 643.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 50.3 GB. [2020-06-22 03:15:33,793 INFO L168 Benchmark]: RCFGBuilder took 223.47 ms. Allocated memory is still 682.1 MB. Free memory was 643.9 MB in the beginning and 627.2 MB in the end (delta: 16.7 MB). Peak memory consumption was 16.7 MB. Max. memory is 50.3 GB. [2020-06-22 03:15:33,794 INFO L168 Benchmark]: BlockEncodingV2 took 84.18 ms. Allocated memory is still 682.1 MB. Free memory was 627.2 MB in the beginning and 621.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. [2020-06-22 03:15:33,795 INFO L168 Benchmark]: TraceAbstraction took 159.55 ms. Allocated memory is still 682.1 MB. Free memory was 620.4 MB in the beginning and 612.3 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 50.3 GB. [2020-06-22 03:15:33,795 INFO L168 Benchmark]: BuchiAutomizer took 6534.72 ms. Allocated memory was 682.1 MB in the beginning and 749.7 MB in the end (delta: 67.6 MB). Free memory was 612.3 MB in the beginning and 543.1 MB in the end (delta: 69.3 MB). Peak memory consumption was 136.9 MB. Max. memory is 50.3 GB. [2020-06-22 03:15:33,799 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 10 locations, 15 edges - StatisticsResult: Encoded RCFG 6 locations, 16 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 586.9 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 301.42 ms. Allocated memory was 649.6 MB in the beginning and 682.1 MB in the end (delta: 32.5 MB). Free memory was 564.2 MB in the beginning and 648.3 MB in the end (delta: -84.1 MB). Peak memory consumption was 30.2 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 36.00 ms. Allocated memory is still 682.1 MB. Free memory was 648.3 MB in the beginning and 647.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 20.17 ms. Allocated memory is still 682.1 MB. Free memory was 647.0 MB in the beginning and 643.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 50.3 GB. * RCFGBuilder took 223.47 ms. Allocated memory is still 682.1 MB. Free memory was 643.9 MB in the beginning and 627.2 MB in the end (delta: 16.7 MB). Peak memory consumption was 16.7 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 84.18 ms. Allocated memory is still 682.1 MB. Free memory was 627.2 MB in the beginning and 621.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. * TraceAbstraction took 159.55 ms. Allocated memory is still 682.1 MB. Free memory was 620.4 MB in the beginning and 612.3 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 6534.72 ms. Allocated memory was 682.1 MB in the beginning and 749.7 MB in the end (delta: 67.6 MB). Free memory was 612.3 MB in the beginning and 543.1 MB in the end (delta: 69.3 MB). Peak memory consumption was 136.9 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 0 error locations. SAFE Result, 0.0s OverallTime, 0 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 1 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (1 trivial, 0 deterministic, 4 nondeterministic). One nondeterministic module has 2-nested ranking function (if -2 * tk > 0 then 1 else 0), (if -2 * tk > 0 then -2 * tk else 2 * bn + -2 * j + 1) and consists of 5 locations. One nondeterministic module has affine ranking function -2 * i + 2 * an + 1 and consists of 5 locations. One nondeterministic module has affine ranking function 2 * an + -2 * i + 1 and consists of 4 locations. One nondeterministic module has affine ranking function an + -1 * i and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 6.5s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 5.0s. Construction of modules took 0.2s. Büchi inclusion checks took 1.0s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 17 states and ocurred in iteration 2. Nontrivial modules had stage [4, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 25 SDtfs, 218 SDslu, 27 SDs, 0 SdLazy, 195 SolverSat, 38 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT4 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital24 mio100 ax100 hnf100 lsp58 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq154 hnf93 smp100 dnf100 smp100 tf110 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 6ms VariablesStem: 0 VariablesLoop: 1 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 3 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 7 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 3.8s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !ENTRY org.eclipse.core.resources 2 10035 2020-06-22 03:15:34.030 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check