./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-lit/gr2006_true-unreach-call_true-termination.c.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_6b59774d-a366-4e72-856b-0a2ec725da91/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_6b59774d-a366-4e72-856b-0a2ec725da91/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_6b59774d-a366-4e72-856b-0a2ec725da91/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_6b59774d-a366-4e72-856b-0a2ec725da91/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-lit/gr2006_true-unreach-call_true-termination.c.i -s /tmp/vcloud-vcloud-master/worker/working_dir_6b59774d-a366-4e72-856b-0a2ec725da91/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_6b59774d-a366-4e72-856b-0a2ec725da91/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 76260ed82768318ee6f3ac3cb9cfff5a60080963 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 06:49:28,491 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 06:49:28,492 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 06:49:28,500 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 06:49:28,500 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 06:49:28,500 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 06:49:28,501 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 06:49:28,502 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 06:49:28,503 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 06:49:28,503 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 06:49:28,504 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 06:49:28,504 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 06:49:28,505 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 06:49:28,505 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 06:49:28,506 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 06:49:28,507 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 06:49:28,507 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 06:49:28,508 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 06:49:28,510 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 06:49:28,511 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 06:49:28,512 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 06:49:28,513 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 06:49:28,514 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 06:49:28,514 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 06:49:28,515 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 06:49:28,515 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 06:49:28,516 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 06:49:28,516 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 06:49:28,517 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 06:49:28,518 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 06:49:28,518 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 06:49:28,518 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 06:49:28,519 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 06:49:28,519 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 06:49:28,519 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 06:49:28,520 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 06:49:28,520 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_6b59774d-a366-4e72-856b-0a2ec725da91/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-23 06:49:28,531 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 06:49:28,531 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 06:49:28,532 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 06:49:28,532 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 06:49:28,532 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 06:49:28,533 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-23 06:49:28,533 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-23 06:49:28,533 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-23 06:49:28,533 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-23 06:49:28,533 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-23 06:49:28,533 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-23 06:49:28,533 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 06:49:28,534 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 06:49:28,534 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-23 06:49:28,534 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 06:49:28,534 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 06:49:28,534 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 06:49:28,534 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-23 06:49:28,534 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-23 06:49:28,534 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-23 06:49:28,535 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 06:49:28,535 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 06:49:28,535 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-23 06:49:28,535 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 06:49:28,535 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-23 06:49:28,535 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 06:49:28,535 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 06:49:28,536 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-23 06:49:28,536 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 06:49:28,536 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 06:49:28,536 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-23 06:49:28,537 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-23 06:49:28,537 INFO L133 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_6b59774d-a366-4e72-856b-0a2ec725da91/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 76260ed82768318ee6f3ac3cb9cfff5a60080963 [2018-11-23 06:49:28,561 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 06:49:28,569 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 06:49:28,571 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 06:49:28,571 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 06:49:28,572 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 06:49:28,572 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_6b59774d-a366-4e72-856b-0a2ec725da91/bin-2019/uautomizer/../../sv-benchmarks/c/loop-lit/gr2006_true-unreach-call_true-termination.c.i [2018-11-23 06:49:28,608 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6b59774d-a366-4e72-856b-0a2ec725da91/bin-2019/uautomizer/data/d0d6073b7/e09e63c08f6b4450a644bfded35ffdd2/FLAG7deafd89b [2018-11-23 06:49:28,988 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 06:49:28,988 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_6b59774d-a366-4e72-856b-0a2ec725da91/sv-benchmarks/c/loop-lit/gr2006_true-unreach-call_true-termination.c.i [2018-11-23 06:49:28,992 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6b59774d-a366-4e72-856b-0a2ec725da91/bin-2019/uautomizer/data/d0d6073b7/e09e63c08f6b4450a644bfded35ffdd2/FLAG7deafd89b [2018-11-23 06:49:29,001 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_6b59774d-a366-4e72-856b-0a2ec725da91/bin-2019/uautomizer/data/d0d6073b7/e09e63c08f6b4450a644bfded35ffdd2 [2018-11-23 06:49:29,003 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 06:49:29,004 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 06:49:29,004 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 06:49:29,004 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 06:49:29,007 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 06:49:29,008 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:49:29" (1/1) ... [2018-11-23 06:49:29,010 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33c486bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:49:29, skipping insertion in model container [2018-11-23 06:49:29,010 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:49:29" (1/1) ... [2018-11-23 06:49:29,017 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 06:49:29,030 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 06:49:29,128 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 06:49:29,130 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 06:49:29,139 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 06:49:29,147 INFO L195 MainTranslator]: Completed translation [2018-11-23 06:49:29,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:49:29 WrapperNode [2018-11-23 06:49:29,147 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 06:49:29,148 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 06:49:29,148 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 06:49:29,148 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 06:49:29,155 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:49:29" (1/1) ... [2018-11-23 06:49:29,159 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:49:29" (1/1) ... [2018-11-23 06:49:29,174 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 06:49:29,175 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 06:49:29,175 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 06:49:29,175 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 06:49:29,181 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:49:29" (1/1) ... [2018-11-23 06:49:29,181 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:49:29" (1/1) ... [2018-11-23 06:49:29,182 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:49:29" (1/1) ... [2018-11-23 06:49:29,182 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:49:29" (1/1) ... [2018-11-23 06:49:29,183 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:49:29" (1/1) ... [2018-11-23 06:49:29,186 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:49:29" (1/1) ... [2018-11-23 06:49:29,187 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:49:29" (1/1) ... [2018-11-23 06:49:29,188 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 06:49:29,188 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 06:49:29,188 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 06:49:29,188 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 06:49:29,189 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:49:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6b59774d-a366-4e72-856b-0a2ec725da91/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 06:49:29,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 06:49:29,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 06:49:29,368 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 06:49:29,368 INFO L280 CfgBuilder]: Removed 7 assue(true) statements. [2018-11-23 06:49:29,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:49:29 BoogieIcfgContainer [2018-11-23 06:49:29,368 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 06:49:29,369 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-23 06:49:29,369 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-23 06:49:29,371 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-23 06:49:29,371 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 06:49:29,372 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.11 06:49:29" (1/3) ... [2018-11-23 06:49:29,372 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6911a5ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 06:49:29, skipping insertion in model container [2018-11-23 06:49:29,373 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 06:49:29,373 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:49:29" (2/3) ... [2018-11-23 06:49:29,373 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6911a5ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 06:49:29, skipping insertion in model container [2018-11-23 06:49:29,373 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 06:49:29,373 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:49:29" (3/3) ... [2018-11-23 06:49:29,375 INFO L375 chiAutomizerObserver]: Analyzing ICFG gr2006_true-unreach-call_true-termination.c.i [2018-11-23 06:49:29,422 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 06:49:29,423 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-23 06:49:29,423 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-23 06:49:29,423 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-23 06:49:29,423 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 06:49:29,423 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 06:49:29,423 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-23 06:49:29,423 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 06:49:29,423 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-23 06:49:29,436 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2018-11-23 06:49:29,453 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-23 06:49:29,453 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 06:49:29,453 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 06:49:29,459 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-23 06:49:29,459 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-23 06:49:29,459 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-23 06:49:29,459 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2018-11-23 06:49:29,460 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-23 06:49:29,460 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 06:49:29,460 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 06:49:29,461 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-23 06:49:29,461 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-23 06:49:29,467 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~post1, main_#t~post2, main_#t~post3, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := 0;main_~y~0 := 0; 7#L14-2true [2018-11-23 06:49:29,468 INFO L796 eck$LassoCheckResult]: Loop: 7#L14-2true assume !false; 3#L15true assume main_~x~0 < 50;main_#t~post1 := main_~y~0;main_~y~0 := 1 + main_#t~post1;havoc main_#t~post1; 10#L15-2true assume !(main_~y~0 < 0);main_#t~post3 := main_~x~0;main_~x~0 := 1 + main_#t~post3;havoc main_#t~post3; 7#L14-2true [2018-11-23 06:49:29,472 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:49:29,472 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2018-11-23 06:49:29,474 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 06:49:29,475 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 06:49:29,513 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:49:29,513 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 06:49:29,513 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:49:29,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 06:49:29,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 06:49:29,542 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:49:29,543 INFO L82 PathProgramCache]: Analyzing trace with hash 39825, now seen corresponding path program 1 times [2018-11-23 06:49:29,543 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 06:49:29,543 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 06:49:29,544 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:49:29,544 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 06:49:29,544 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:49:29,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 06:49:29,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 06:49:29,553 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:49:29,554 INFO L82 PathProgramCache]: Analyzing trace with hash 963346, now seen corresponding path program 1 times [2018-11-23 06:49:29,554 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 06:49:29,554 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 06:49:29,555 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:49:29,555 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 06:49:29,555 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:49:29,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 06:49:29,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 06:49:29,625 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 06:49:29,626 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 06:49:29,626 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 06:49:29,626 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 06:49:29,627 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 06:49:29,627 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 06:49:29,627 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 06:49:29,627 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 06:49:29,627 INFO L131 ssoRankerPreferences]: Filename of dumped script: gr2006_true-unreach-call_true-termination.c.i_Iteration1_Loop [2018-11-23 06:49:29,627 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 06:49:29,627 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 06:49:29,642 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 06:49:29,650 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 06:49:29,654 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 06:49:29,673 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 06:49:29,717 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 06:49:29,718 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6b59774d-a366-4e72-856b-0a2ec725da91/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -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:1024 -smt2 -in -t:12000 [2018-11-23 06:49:29,722 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 06:49:29,722 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6b59774d-a366-4e72-856b-0a2ec725da91/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -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:1024 -smt2 -in -t:12000 [2018-11-23 06:49:29,739 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 06:49:29,739 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 06:49:29,771 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 06:49:29,771 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=-1} Honda state: {ULTIMATE.start_main_~y~0=-1} Generalized eigenvectors: [{ULTIMATE.start_main_~y~0=1}, {ULTIMATE.start_main_~y~0=0}, {ULTIMATE.start_main_~y~0=0}] Lambdas: [1, 6, 0] Nus: [0, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6b59774d-a366-4e72-856b-0a2ec725da91/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -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:1024 -smt2 -in -t:12000 [2018-11-23 06:49:29,786 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 06:49:29,786 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 06:49:29,788 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 06:49:29,788 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post1=0} Honda state: {ULTIMATE.start_main_#t~post1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6b59774d-a366-4e72-856b-0a2ec725da91/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -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:1024 -smt2 -in -t:12000 [2018-11-23 06:49:29,803 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 06:49:29,803 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6b59774d-a366-4e72-856b-0a2ec725da91/bin-2019/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -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:1024 -smt2 -in -t:12000 [2018-11-23 06:49:29,819 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 06:49:29,819 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 06:49:29,836 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-23 06:49:29,837 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 06:49:29,837 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 06:49:29,837 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 06:49:29,837 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 06:49:29,837 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 06:49:29,837 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 06:49:29,837 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 06:49:29,837 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 06:49:29,837 INFO L131 ssoRankerPreferences]: Filename of dumped script: gr2006_true-unreach-call_true-termination.c.i_Iteration1_Loop [2018-11-23 06:49:29,838 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 06:49:29,838 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 06:49:29,839 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 06:49:29,846 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 06:49:29,850 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 06:49:29,855 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 06:49:29,899 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 06:49:29,902 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 06:49:29,903 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 [2018-11-23 06:49:29,904 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 06:49:29,905 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 06:49:29,905 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 06:49:29,905 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 06:49:29,905 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 06:49:29,907 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 06:49:29,907 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 06:49:29,912 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 06:49:29,913 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 [2018-11-23 06:49:29,913 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 06:49:29,913 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 06:49:29,913 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 06:49:29,913 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 06:49:29,913 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 06:49:29,914 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 06:49:29,914 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 06:49:29,915 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 06:49:29,915 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 [2018-11-23 06:49:29,916 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 06:49:29,916 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 06:49:29,916 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 06:49:29,916 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 06:49:29,916 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 06:49:29,917 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 06:49:29,917 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 06:49:29,922 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 06:49:29,925 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-23 06:49:29,925 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-23 06:49:29,927 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 06:49:29,927 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-23 06:49:29,927 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 06:49:29,927 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~x~0 + 99 Supporting invariants [] [2018-11-23 06:49:29,928 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-23 06:49:29,965 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:49:29,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:49:29,971 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 06:49:29,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:49:29,978 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 06:49:29,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 06:49:29,997 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-23 06:49:29,998 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states. Second operand 4 states. [2018-11-23 06:49:30,040 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states.. Second operand 4 states. Result 47 states and 59 transitions. Complement of second has 7 states. [2018-11-23 06:49:30,040 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 [2018-11-23 06:49:30,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-23 06:49:30,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 34 transitions. [2018-11-23 06:49:30,042 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 34 transitions. Stem has 1 letters. Loop has 3 letters. [2018-11-23 06:49:30,043 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 06:49:30,043 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 34 transitions. Stem has 4 letters. Loop has 3 letters. [2018-11-23 06:49:30,043 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 06:49:30,044 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 34 transitions. Stem has 1 letters. Loop has 6 letters. [2018-11-23 06:49:30,044 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 06:49:30,044 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 47 states and 59 transitions. [2018-11-23 06:49:30,046 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-23 06:49:30,049 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 47 states to 11 states and 14 transitions. [2018-11-23 06:49:30,049 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2018-11-23 06:49:30,049 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2018-11-23 06:49:30,050 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 14 transitions. [2018-11-23 06:49:30,050 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 06:49:30,050 INFO L705 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2018-11-23 06:49:30,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 14 transitions. [2018-11-23 06:49:30,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2018-11-23 06:49:30,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2018-11-23 06:49:30,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2018-11-23 06:49:30,066 INFO L728 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2018-11-23 06:49:30,066 INFO L608 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2018-11-23 06:49:30,066 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-23 06:49:30,066 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 13 transitions. [2018-11-23 06:49:30,067 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-23 06:49:30,067 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 06:49:30,067 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 06:49:30,067 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-23 06:49:30,067 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-23 06:49:30,067 INFO L794 eck$LassoCheckResult]: Stem: 102#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~post1, main_#t~post2, main_#t~post3, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := 0;main_~y~0 := 0; 103#L14-2 assume !false; 97#L15 [2018-11-23 06:49:30,067 INFO L796 eck$LassoCheckResult]: Loop: 97#L15 assume !(main_~x~0 < 50);main_#t~post2 := main_~y~0;main_~y~0 := main_#t~post2 - 1;havoc main_#t~post2; 98#L15-2 assume !(main_~y~0 < 0);main_#t~post3 := main_~x~0;main_~x~0 := 1 + main_#t~post3;havoc main_#t~post3; 104#L14-2 assume !false; 97#L15 [2018-11-23 06:49:30,067 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:49:30,068 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2018-11-23 06:49:30,068 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 06:49:30,068 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 06:49:30,068 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:49:30,068 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 06:49:30,068 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:49:30,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 06:49:30,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 06:49:30,070 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:49:30,070 INFO L82 PathProgramCache]: Analyzing trace with hash 44867, now seen corresponding path program 1 times [2018-11-23 06:49:30,071 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 06:49:30,071 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 06:49:30,071 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:49:30,071 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 06:49:30,071 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:49:30,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 06:49:30,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 06:49:30,076 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:49:30,076 INFO L82 PathProgramCache]: Analyzing trace with hash 29865658, now seen corresponding path program 1 times [2018-11-23 06:49:30,076 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 06:49:30,076 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 06:49:30,076 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:49:30,076 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 06:49:30,076 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:49:30,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:49:30,095 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 06:49:30,097 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 06:49:30,097 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 06:49:30,123 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 06:49:30,123 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 06:49:30,123 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 06:49:30,123 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 06:49:30,123 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 06:49:30,123 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 06:49:30,123 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 06:49:30,123 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 06:49:30,124 INFO L131 ssoRankerPreferences]: Filename of dumped script: gr2006_true-unreach-call_true-termination.c.i_Iteration2_Loop [2018-11-23 06:49:30,124 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 06:49:30,124 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 06:49:30,125 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 06:49:30,126 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 06:49:30,131 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 06:49:30,132 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 06:49:30,171 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 06:49:30,172 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6b59774d-a366-4e72-856b-0a2ec725da91/bin-2019/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -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:1024 -smt2 -in -t:12000 [2018-11-23 06:49:30,176 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 06:49:30,176 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 06:49:30,178 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 06:49:30,178 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post3=0} Honda state: {ULTIMATE.start_main_#t~post3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6b59774d-a366-4e72-856b-0a2ec725da91/bin-2019/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -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:1024 -smt2 -in -t:12000 [2018-11-23 06:49:30,193 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 06:49:30,193 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6b59774d-a366-4e72-856b-0a2ec725da91/bin-2019/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -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:1024 -smt2 -in -t:12000 [2018-11-23 06:49:30,210 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 06:49:30,210 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 06:49:30,215 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 06:49:30,215 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=50} Honda state: {ULTIMATE.start_main_~x~0=50} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0=0}, {ULTIMATE.start_main_~x~0=1}, {ULTIMATE.start_main_~x~0=0}] Lambdas: [0, 1, 0] Nus: [0, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6b59774d-a366-4e72-856b-0a2ec725da91/bin-2019/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -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:1024 -smt2 -in -t:12000 [2018-11-23 06:49:30,230 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 06:49:30,230 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 06:49:30,232 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 06:49:30,232 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post2=0} Honda state: {ULTIMATE.start_main_#t~post2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6b59774d-a366-4e72-856b-0a2ec725da91/bin-2019/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -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:1024 -smt2 -in -t:12000 [2018-11-23 06:49:30,246 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 06:49:30,247 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6b59774d-a366-4e72-856b-0a2ec725da91/bin-2019/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -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:1024 -smt2 -in -t:12000 [2018-11-23 06:49:30,264 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 06:49:30,264 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 06:49:30,293 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-23 06:49:30,294 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 06:49:30,294 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 06:49:30,294 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 06:49:30,294 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 06:49:30,294 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 06:49:30,294 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 06:49:30,294 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 06:49:30,294 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 06:49:30,294 INFO L131 ssoRankerPreferences]: Filename of dumped script: gr2006_true-unreach-call_true-termination.c.i_Iteration2_Loop [2018-11-23 06:49:30,295 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 06:49:30,295 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 06:49:30,295 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 06:49:30,297 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 06:49:30,300 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 06:49:30,303 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 06:49:30,361 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 06:49:30,361 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 06:49:30,362 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 [2018-11-23 06:49:30,362 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 06:49:30,362 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 06:49:30,363 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 06:49:30,363 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 06:49:30,363 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 06:49:30,363 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 06:49:30,363 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 06:49:30,365 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 06:49:30,365 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 [2018-11-23 06:49:30,365 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 06:49:30,366 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 06:49:30,366 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 06:49:30,366 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 06:49:30,366 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 06:49:30,367 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 06:49:30,367 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 06:49:30,370 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 06:49:30,370 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 [2018-11-23 06:49:30,371 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 06:49:30,371 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 06:49:30,371 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 06:49:30,371 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 06:49:30,371 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 06:49:30,372 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 06:49:30,372 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 06:49:30,376 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 06:49:30,378 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-23 06:49:30,378 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-23 06:49:30,378 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 06:49:30,379 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-23 06:49:30,379 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 06:49:30,379 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2018-11-23 06:49:30,379 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-23 06:49:30,408 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:49:30,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:49:30,412 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 06:49:30,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:49:30,417 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 06:49:30,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 06:49:30,442 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2018-11-23 06:49:30,443 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5 Second operand 4 states. [2018-11-23 06:49:30,471 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5. Second operand 4 states. Result 23 states and 29 transitions. Complement of second has 7 states. [2018-11-23 06:49:30,472 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 [2018-11-23 06:49:30,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-23 06:49:30,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions. [2018-11-23 06:49:30,473 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 2 letters. Loop has 3 letters. [2018-11-23 06:49:30,473 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 06:49:30,473 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 5 letters. Loop has 3 letters. [2018-11-23 06:49:30,473 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 06:49:30,474 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 2 letters. Loop has 6 letters. [2018-11-23 06:49:30,474 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 06:49:30,474 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 29 transitions. [2018-11-23 06:49:30,475 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-23 06:49:30,475 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 15 states and 19 transitions. [2018-11-23 06:49:30,475 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2018-11-23 06:49:30,476 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2018-11-23 06:49:30,476 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 19 transitions. [2018-11-23 06:49:30,476 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 06:49:30,476 INFO L705 BuchiCegarLoop]: Abstraction has 15 states and 19 transitions. [2018-11-23 06:49:30,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 19 transitions. [2018-11-23 06:49:30,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-11-23 06:49:30,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-11-23 06:49:30,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 19 transitions. [2018-11-23 06:49:30,478 INFO L728 BuchiCegarLoop]: Abstraction has 15 states and 19 transitions. [2018-11-23 06:49:30,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 06:49:30,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 06:49:30,485 INFO L87 Difference]: Start difference. First operand 15 states and 19 transitions. Second operand 3 states. [2018-11-23 06:49:30,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 06:49:30,496 INFO L93 Difference]: Finished difference Result 12 states and 14 transitions. [2018-11-23 06:49:30,497 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 06:49:30,497 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 14 transitions. [2018-11-23 06:49:30,497 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-23 06:49:30,498 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 12 states and 14 transitions. [2018-11-23 06:49:30,498 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2018-11-23 06:49:30,499 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2018-11-23 06:49:30,499 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 14 transitions. [2018-11-23 06:49:30,500 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 06:49:30,500 INFO L705 BuchiCegarLoop]: Abstraction has 12 states and 14 transitions. [2018-11-23 06:49:30,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 14 transitions. [2018-11-23 06:49:30,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2018-11-23 06:49:30,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-11-23 06:49:30,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2018-11-23 06:49:30,501 INFO L728 BuchiCegarLoop]: Abstraction has 11 states and 13 transitions. [2018-11-23 06:49:30,501 INFO L608 BuchiCegarLoop]: Abstraction has 11 states and 13 transitions. [2018-11-23 06:49:30,501 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-23 06:49:30,501 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 13 transitions. [2018-11-23 06:49:30,502 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-23 06:49:30,502 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 06:49:30,502 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 06:49:30,502 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1] [2018-11-23 06:49:30,502 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-23 06:49:30,503 INFO L794 eck$LassoCheckResult]: Stem: 202#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~post1, main_#t~post2, main_#t~post3, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := 0;main_~y~0 := 0; 203#L14-2 assume !false; 200#L15 assume main_~x~0 < 50;main_#t~post1 := main_~y~0;main_~y~0 := 1 + main_#t~post1;havoc main_#t~post1; 201#L15-2 assume !(main_~y~0 < 0);main_#t~post3 := main_~x~0;main_~x~0 := 1 + main_#t~post3;havoc main_#t~post3; 208#L14-2 assume !false; 198#L15 [2018-11-23 06:49:30,503 INFO L796 eck$LassoCheckResult]: Loop: 198#L15 assume !(main_~x~0 < 50);main_#t~post2 := main_~y~0;main_~y~0 := main_#t~post2 - 1;havoc main_#t~post2; 199#L15-2 assume !(main_~y~0 < 0);main_#t~post3 := main_~x~0;main_~x~0 := 1 + main_#t~post3;havoc main_#t~post3; 206#L14-2 assume !false; 198#L15 [2018-11-23 06:49:30,503 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:49:30,503 INFO L82 PathProgramCache]: Analyzing trace with hash 29863736, now seen corresponding path program 2 times [2018-11-23 06:49:30,503 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 06:49:30,503 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 06:49:30,504 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:49:30,504 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 06:49:30,504 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:49:30,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 06:49:30,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 06:49:30,510 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:49:30,510 INFO L82 PathProgramCache]: Analyzing trace with hash 44867, now seen corresponding path program 2 times [2018-11-23 06:49:30,511 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 06:49:30,511 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 06:49:30,511 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:49:30,511 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 06:49:30,512 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:49:30,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 06:49:30,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 06:49:30,516 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:49:30,516 INFO L82 PathProgramCache]: Analyzing trace with hash 612343980, now seen corresponding path program 1 times [2018-11-23 06:49:30,516 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 06:49:30,516 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 06:49:30,517 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:49:30,517 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 06:49:30,517 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:49:30,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:49:30,545 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 06:49:30,545 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 06:49:30,546 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6b59774d-a366-4e72-856b-0a2ec725da91/bin-2019/uautomizer/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 06:49:30,552 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 06:49:30,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:49:30,556 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 06:49:30,558 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 06:49:30,574 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 06:49:30,575 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2018-11-23 06:49:30,590 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 06:49:30,590 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 06:49:30,590 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 06:49:30,590 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 06:49:30,591 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 06:49:30,591 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 06:49:30,591 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 06:49:30,591 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 06:49:30,591 INFO L131 ssoRankerPreferences]: Filename of dumped script: gr2006_true-unreach-call_true-termination.c.i_Iteration3_Loop [2018-11-23 06:49:30,591 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 06:49:30,591 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 06:49:30,592 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 06:49:30,595 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 06:49:30,598 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 06:49:30,599 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 06:49:30,632 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 06:49:30,632 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6b59774d-a366-4e72-856b-0a2ec725da91/bin-2019/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -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:1024 -smt2 -in -t:12000 [2018-11-23 06:49:30,634 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 06:49:30,634 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6b59774d-a366-4e72-856b-0a2ec725da91/bin-2019/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -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:1024 -smt2 -in -t:12000 [2018-11-23 06:49:30,650 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 06:49:30,650 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 06:49:30,656 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 06:49:30,656 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=50} Honda state: {ULTIMATE.start_main_~x~0=50} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0=0}, {ULTIMATE.start_main_~x~0=1}, {ULTIMATE.start_main_~x~0=0}] Lambdas: [0, 1, 0] Nus: [0, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6b59774d-a366-4e72-856b-0a2ec725da91/bin-2019/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 06:49:30,670 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 06:49:30,670 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 06:49:30,672 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 06:49:30,672 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post2=0} Honda state: {ULTIMATE.start_main_#t~post2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6b59774d-a366-4e72-856b-0a2ec725da91/bin-2019/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 06:49:30,687 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 06:49:30,687 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 06:49:30,689 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 06:49:30,689 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post3=0} Honda state: {ULTIMATE.start_main_#t~post3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6b59774d-a366-4e72-856b-0a2ec725da91/bin-2019/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 06:49:30,704 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 06:49:30,704 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6b59774d-a366-4e72-856b-0a2ec725da91/bin-2019/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 06:49:30,720 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 06:49:30,720 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 06:49:30,749 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-23 06:49:30,750 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 06:49:30,750 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 06:49:30,750 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 06:49:30,750 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 06:49:30,750 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 06:49:30,750 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 06:49:30,750 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 06:49:30,750 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 06:49:30,750 INFO L131 ssoRankerPreferences]: Filename of dumped script: gr2006_true-unreach-call_true-termination.c.i_Iteration3_Loop [2018-11-23 06:49:30,751 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 06:49:30,751 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 06:49:30,751 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 06:49:30,755 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 06:49:30,756 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 06:49:30,757 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 06:49:30,782 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 06:49:30,782 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 06:49:30,782 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 [2018-11-23 06:49:30,783 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 06:49:30,783 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 06:49:30,783 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 06:49:30,783 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 06:49:30,784 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 06:49:30,784 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 06:49:30,784 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 06:49:30,787 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 06:49:30,788 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 [2018-11-23 06:49:30,788 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 06:49:30,789 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 06:49:30,789 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 06:49:30,789 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 06:49:30,789 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 06:49:30,789 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 06:49:30,789 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 06:49:30,790 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 06:49:30,791 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 [2018-11-23 06:49:30,791 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 06:49:30,791 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 06:49:30,792 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 06:49:30,792 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 06:49:30,792 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 06:49:30,792 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 06:49:30,792 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 06:49:30,793 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 06:49:30,793 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 [2018-11-23 06:49:30,794 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 06:49:30,794 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 06:49:30,794 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 06:49:30,794 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 06:49:30,794 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 06:49:30,795 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 06:49:30,795 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 06:49:30,797 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 06:49:30,798 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-23 06:49:30,798 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-23 06:49:30,798 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 06:49:30,799 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-23 06:49:30,799 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 06:49:30,799 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2018-11-23 06:49:30,799 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-23 06:49:30,809 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:49:30,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:49:30,816 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 06:49:30,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:49:30,820 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 06:49:30,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 06:49:30,837 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2018-11-23 06:49:30,838 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 13 transitions. cyclomatic complexity: 4 Second operand 4 states. [2018-11-23 06:49:30,840 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 13 transitions. cyclomatic complexity: 4. Second operand 4 states. Result 11 states and 13 transitions. Complement of second has 3 states. [2018-11-23 06:49:30,841 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2018-11-23 06:49:30,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-23 06:49:30,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 2 transitions. [2018-11-23 06:49:30,842 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 2 transitions. Stem has 5 letters. Loop has 3 letters. [2018-11-23 06:49:30,842 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 06:49:30,842 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-23 06:49:30,853 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:49:30,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:49:30,857 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 06:49:30,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:49:30,860 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 06:49:30,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 06:49:30,877 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2018-11-23 06:49:30,877 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 13 transitions. cyclomatic complexity: 4 Second operand 4 states. [2018-11-23 06:49:30,880 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 13 transitions. cyclomatic complexity: 4. Second operand 4 states. Result 11 states and 13 transitions. Complement of second has 3 states. [2018-11-23 06:49:30,880 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2018-11-23 06:49:30,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-23 06:49:30,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 2 transitions. [2018-11-23 06:49:30,881 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 2 transitions. Stem has 5 letters. Loop has 3 letters. [2018-11-23 06:49:30,881 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 06:49:30,881 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-23 06:49:30,890 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:49:30,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:49:30,893 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 06:49:30,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:49:30,896 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 06:49:30,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 06:49:30,907 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 [2018-11-23 06:49:30,907 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 13 transitions. cyclomatic complexity: 4 Second operand 4 states. [2018-11-23 06:49:30,927 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 13 transitions. cyclomatic complexity: 4. Second operand 4 states. Result 18 states and 22 transitions. Complement of second has 6 states. [2018-11-23 06:49:30,928 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 [2018-11-23 06:49:30,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-23 06:49:30,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2018-11-23 06:49:30,928 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 5 letters. Loop has 3 letters. [2018-11-23 06:49:30,929 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 06:49:30,929 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 8 letters. Loop has 3 letters. [2018-11-23 06:49:30,929 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 06:49:30,929 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 5 letters. Loop has 6 letters. [2018-11-23 06:49:30,929 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 06:49:30,930 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 22 transitions. [2018-11-23 06:49:30,930 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-23 06:49:30,930 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 0 states and 0 transitions. [2018-11-23 06:49:30,931 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-23 06:49:30,931 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-23 06:49:30,931 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-23 06:49:30,931 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-23 06:49:30,931 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 06:49:30,931 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 06:49:30,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 06:49:30,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-23 06:49:30,932 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 4 states. [2018-11-23 06:49:30,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 06:49:30,932 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2018-11-23 06:49:30,932 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-23 06:49:30,932 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2018-11-23 06:49:30,932 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-23 06:49:30,932 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 06:49:30,932 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-23 06:49:30,933 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-23 06:49:30,933 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-23 06:49:30,933 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-23 06:49:30,933 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 06:49:30,933 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 06:49:30,933 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 06:49:30,933 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-23 06:49:30,933 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-23 06:49:30,933 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-23 06:49:30,933 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-23 06:49:30,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.11 06:49:30 BoogieIcfgContainer [2018-11-23 06:49:30,938 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-23 06:49:30,938 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 06:49:30,939 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 06:49:30,939 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 06:49:30,939 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:49:29" (3/4) ... [2018-11-23 06:49:30,942 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-23 06:49:30,942 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 06:49:30,943 INFO L168 Benchmark]: Toolchain (without parser) took 1939.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 962.5 MB in the beginning and 892.2 MB in the end (delta: 70.3 MB). Peak memory consumption was 202.9 MB. Max. memory is 11.5 GB. [2018-11-23 06:49:30,944 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 06:49:30,944 INFO L168 Benchmark]: CACSL2BoogieTranslator took 143.02 ms. Allocated memory is still 1.0 GB. Free memory was 962.5 MB in the beginning and 951.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 06:49:30,945 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.83 ms. Allocated memory is still 1.0 GB. Free memory was 951.7 MB in the beginning and 949.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 06:49:30,945 INFO L168 Benchmark]: Boogie Preprocessor took 13.49 ms. Allocated memory is still 1.0 GB. Free memory is still 949.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 06:49:30,945 INFO L168 Benchmark]: RCFGBuilder took 180.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 949.0 MB in the beginning and 1.1 GB in the end (delta: -171.9 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. [2018-11-23 06:49:30,945 INFO L168 Benchmark]: BuchiAutomizer took 1569.64 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 892.2 MB in the end (delta: 228.8 MB). Peak memory consumption was 228.8 MB. Max. memory is 11.5 GB. [2018-11-23 06:49:30,946 INFO L168 Benchmark]: Witness Printer took 3.97 ms. Allocated memory is still 1.2 GB. Free memory is still 892.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 06:49:30,948 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 143.02 ms. Allocated memory is still 1.0 GB. Free memory was 962.5 MB in the beginning and 951.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 26.83 ms. Allocated memory is still 1.0 GB. Free memory was 951.7 MB in the beginning and 949.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.49 ms. Allocated memory is still 1.0 GB. Free memory is still 949.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 180.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 949.0 MB in the beginning and 1.1 GB in the end (delta: -171.9 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1569.64 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 892.2 MB in the end (delta: 228.8 MB). Peak memory consumption was 228.8 MB. Max. memory is 11.5 GB. * Witness Printer took 3.97 ms. Allocated memory is still 1.2 GB. Free memory is still 892.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (2 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -2 * x + 99 and consists of 5 locations. One deterministic module has affine ranking function y and consists of 4 locations. One nondeterministic module has affine ranking function y and consists of 4 locations. 2 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.5s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 1.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 11 states and ocurred in iteration 2. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 24 SDtfs, 27 SDslu, 19 SDs, 0 SdLazy, 35 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT2 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital19 mio100 ax100 hnf91 lsp55 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie103 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 9ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 3 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...