./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/loop-lit/cggmp2005b_true-unreach-call_true-termination.c.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_94affd24-0662-4e45-8b2c-8996ec044c0b/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_94affd24-0662-4e45-8b2c-8996ec044c0b/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_94affd24-0662-4e45-8b2c-8996ec044c0b/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_94affd24-0662-4e45-8b2c-8996ec044c0b/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-lit/cggmp2005b_true-unreach-call_true-termination.c.i -s /tmp/vcloud-vcloud-master/worker/working_dir_94affd24-0662-4e45-8b2c-8996ec044c0b/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_94affd24-0662-4e45-8b2c-8996ec044c0b/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 7408fe5ba42f5c474832c90e26f3e7ef2342554c ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 08:34:39,522 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 08:34:39,524 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 08:34:39,531 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 08:34:39,531 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 08:34:39,532 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 08:34:39,533 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 08:34:39,534 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 08:34:39,535 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 08:34:39,536 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 08:34:39,536 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 08:34:39,537 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 08:34:39,537 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 08:34:39,538 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 08:34:39,539 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 08:34:39,540 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 08:34:39,540 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 08:34:39,541 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 08:34:39,543 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 08:34:39,544 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 08:34:39,545 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 08:34:39,545 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 08:34:39,547 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 08:34:39,547 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 08:34:39,548 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 08:34:39,548 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 08:34:39,549 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 08:34:39,550 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 08:34:39,550 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 08:34:39,551 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 08:34:39,551 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 08:34:39,551 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 08:34:39,551 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 08:34:39,551 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 08:34:39,552 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 08:34:39,552 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 08:34:39,552 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_94affd24-0662-4e45-8b2c-8996ec044c0b/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-18 08:34:39,560 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 08:34:39,560 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 08:34:39,561 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 08:34:39,561 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 08:34:39,561 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 08:34:39,562 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-18 08:34:39,562 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-18 08:34:39,562 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-18 08:34:39,562 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-18 08:34:39,562 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-18 08:34:39,562 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-18 08:34:39,562 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 08:34:39,563 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 08:34:39,563 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 08:34:39,563 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 08:34:39,563 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 08:34:39,563 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 08:34:39,563 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-18 08:34:39,563 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-18 08:34:39,563 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-18 08:34:39,563 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 08:34:39,564 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 08:34:39,564 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-18 08:34:39,564 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 08:34:39,564 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-18 08:34:39,564 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 08:34:39,564 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 08:34:39,564 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-18 08:34:39,565 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 08:34:39,565 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 08:34:39,565 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-18 08:34:39,566 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-18 08:34:39,566 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_94affd24-0662-4e45-8b2c-8996ec044c0b/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 -> 7408fe5ba42f5c474832c90e26f3e7ef2342554c [2018-11-18 08:34:39,589 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 08:34:39,597 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 08:34:39,599 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 08:34:39,599 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 08:34:39,600 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 08:34:39,600 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_94affd24-0662-4e45-8b2c-8996ec044c0b/bin-2019/uautomizer/../../sv-benchmarks/c/loop-lit/cggmp2005b_true-unreach-call_true-termination.c.i [2018-11-18 08:34:39,636 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_94affd24-0662-4e45-8b2c-8996ec044c0b/bin-2019/uautomizer/data/631d5ddec/f1769eadbfbc4cda89195532ccb47dd5/FLAG9f593d76c [2018-11-18 08:34:40,029 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 08:34:40,029 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_94affd24-0662-4e45-8b2c-8996ec044c0b/sv-benchmarks/c/loop-lit/cggmp2005b_true-unreach-call_true-termination.c.i [2018-11-18 08:34:40,033 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_94affd24-0662-4e45-8b2c-8996ec044c0b/bin-2019/uautomizer/data/631d5ddec/f1769eadbfbc4cda89195532ccb47dd5/FLAG9f593d76c [2018-11-18 08:34:40,042 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_94affd24-0662-4e45-8b2c-8996ec044c0b/bin-2019/uautomizer/data/631d5ddec/f1769eadbfbc4cda89195532ccb47dd5 [2018-11-18 08:34:40,045 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 08:34:40,046 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 08:34:40,046 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 08:34:40,046 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 08:34:40,048 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 08:34:40,049 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:34:40" (1/1) ... [2018-11-18 08:34:40,050 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@91c03ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:40, skipping insertion in model container [2018-11-18 08:34:40,050 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:34:40" (1/1) ... [2018-11-18 08:34:40,056 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 08:34:40,068 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 08:34:40,170 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 08:34:40,172 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 08:34:40,182 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 08:34:40,190 INFO L195 MainTranslator]: Completed translation [2018-11-18 08:34:40,190 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:40 WrapperNode [2018-11-18 08:34:40,190 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 08:34:40,191 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 08:34:40,191 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 08:34:40,191 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 08:34:40,196 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:40" (1/1) ... [2018-11-18 08:34:40,199 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:40" (1/1) ... [2018-11-18 08:34:40,209 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 08:34:40,209 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 08:34:40,209 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 08:34:40,209 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 08:34:40,214 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:40" (1/1) ... [2018-11-18 08:34:40,214 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:40" (1/1) ... [2018-11-18 08:34:40,215 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:40" (1/1) ... [2018-11-18 08:34:40,215 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:40" (1/1) ... [2018-11-18 08:34:40,216 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:40" (1/1) ... [2018-11-18 08:34:40,219 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:40" (1/1) ... [2018-11-18 08:34:40,220 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:40" (1/1) ... [2018-11-18 08:34:40,220 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 08:34:40,221 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 08:34:40,221 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 08:34:40,221 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 08:34:40,222 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_94affd24-0662-4e45-8b2c-8996ec044c0b/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 [2018-11-18 08:34:40,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 08:34:40,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 08:34:40,417 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 08:34:40,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:34:40 BoogieIcfgContainer [2018-11-18 08:34:40,417 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 08:34:40,418 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-18 08:34:40,418 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-18 08:34:40,421 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-18 08:34:40,422 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 08:34:40,422 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 08:34:40" (1/3) ... [2018-11-18 08:34:40,423 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2a7969cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 08:34:40, skipping insertion in model container [2018-11-18 08:34:40,423 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 08:34:40,423 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:40" (2/3) ... [2018-11-18 08:34:40,423 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2a7969cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 08:34:40, skipping insertion in model container [2018-11-18 08:34:40,423 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 08:34:40,424 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:34:40" (3/3) ... [2018-11-18 08:34:40,425 INFO L375 chiAutomizerObserver]: Analyzing ICFG cggmp2005b_true-unreach-call_true-termination.c.i [2018-11-18 08:34:40,474 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 08:34:40,474 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-18 08:34:40,474 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-18 08:34:40,474 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-18 08:34:40,475 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 08:34:40,475 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 08:34:40,475 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-18 08:34:40,475 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 08:34:40,475 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-18 08:34:40,487 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2018-11-18 08:34:40,505 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2018-11-18 08:34:40,505 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 08:34:40,506 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 08:34:40,511 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-18 08:34:40,511 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2018-11-18 08:34:40,512 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-18 08:34:40,512 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2018-11-18 08:34:40,513 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2018-11-18 08:34:40,513 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 08:34:40,513 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 08:34:40,513 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-18 08:34:40,513 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2018-11-18 08:34:40,520 INFO L794 eck$LassoCheckResult]: Stem: 10#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_~i~0, main_~j~0, main_~k~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;main_~i~0 := 0;main_~k~0 := 9;main_~j~0 := -100; 6#L21-4true [2018-11-18 08:34:40,520 INFO L796 eck$LassoCheckResult]: Loop: 6#L21-4true assume true; 16#L15-1true assume !!(main_~i~0 <= 100);main_~i~0 := 1 + main_~i~0; 17#L17-3true assume !true; 14#L17-4true main_~k~0 := 4; 7#L21-3true assume !true; 6#L21-4true [2018-11-18 08:34:40,525 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:34:40,526 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2018-11-18 08:34:40,528 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:34:40,529 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:34:40,568 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:40,568 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:34:40,568 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:40,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:34:40,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:34:40,602 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:34:40,602 INFO L82 PathProgramCache]: Analyzing trace with hash 34551677, now seen corresponding path program 1 times [2018-11-18 08:34:40,602 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:34:40,602 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:34:40,603 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:40,603 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:34:40,604 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:40,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:34:40,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 08:34:40,626 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 08:34:40,626 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 08:34:40,630 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 08:34:40,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 08:34:40,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 08:34:40,642 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 2 states. [2018-11-18 08:34:40,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:34:40,646 INFO L93 Difference]: Finished difference Result 16 states and 18 transitions. [2018-11-18 08:34:40,646 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 08:34:40,648 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 18 transitions. [2018-11-18 08:34:40,649 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2018-11-18 08:34:40,651 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 9 states and 11 transitions. [2018-11-18 08:34:40,652 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2018-11-18 08:34:40,652 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2018-11-18 08:34:40,652 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 11 transitions. [2018-11-18 08:34:40,653 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 08:34:40,653 INFO L705 BuchiCegarLoop]: Abstraction has 9 states and 11 transitions. [2018-11-18 08:34:40,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 11 transitions. [2018-11-18 08:34:40,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-11-18 08:34:40,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2018-11-18 08:34:40,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 11 transitions. [2018-11-18 08:34:40,670 INFO L728 BuchiCegarLoop]: Abstraction has 9 states and 11 transitions. [2018-11-18 08:34:40,670 INFO L608 BuchiCegarLoop]: Abstraction has 9 states and 11 transitions. [2018-11-18 08:34:40,671 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-18 08:34:40,671 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 11 transitions. [2018-11-18 08:34:40,671 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2018-11-18 08:34:40,671 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 08:34:40,671 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 08:34:40,671 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-18 08:34:40,671 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:34:40,672 INFO L794 eck$LassoCheckResult]: Stem: 42#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 40#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_~i~0, main_~j~0, main_~k~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;main_~i~0 := 0;main_~k~0 := 9;main_~j~0 := -100; 41#L21-4 [2018-11-18 08:34:40,672 INFO L796 eck$LassoCheckResult]: Loop: 41#L21-4 assume true; 46#L15-1 assume !!(main_~i~0 <= 100);main_~i~0 := 1 + main_~i~0; 45#L17-3 assume true; 43#L17-1 assume !(main_~j~0 < 20); 44#L17-4 main_~k~0 := 4; 47#L21-3 assume true; 48#L21-1 assume !(main_~k~0 <= 3); 41#L21-4 [2018-11-18 08:34:40,672 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:34:40,672 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2018-11-18 08:34:40,672 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:34:40,672 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:34:40,673 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:40,673 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:34:40,674 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:40,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:34:40,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:34:40,678 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:34:40,678 INFO L82 PathProgramCache]: Analyzing trace with hash -1163154253, now seen corresponding path program 1 times [2018-11-18 08:34:40,678 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:34:40,678 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:34:40,679 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:40,679 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 08:34:40,679 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:40,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:34:40,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:34:40,688 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:34:40,688 INFO L82 PathProgramCache]: Analyzing trace with hash 383142577, now seen corresponding path program 1 times [2018-11-18 08:34:40,688 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:34:40,688 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:34:40,689 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:40,689 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:34:40,689 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:40,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:34:40,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 08:34:40,710 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 08:34:40,710 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 08:34:40,756 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 08:34:40,757 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 08:34:40,757 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 08:34:40,757 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 08:34:40,757 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 08:34:40,757 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 08:34:40,757 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 08:34:40,758 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 08:34:40,758 INFO L131 ssoRankerPreferences]: Filename of dumped script: cggmp2005b_true-unreach-call_true-termination.c.i_Iteration2_Loop [2018-11-18 08:34:40,758 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 08:34:40,758 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 08:34:40,770 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 08:34:40,781 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 08:34:40,787 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 08:34:40,833 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 08:34:40,833 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_94affd24-0662-4e45-8b2c-8996ec044c0b/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 [2018-11-18 08:34:40,841 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 08:34:40,841 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 08:34:40,859 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 08:34:40,859 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~j~0=20} Honda state: {ULTIMATE.start_main_~j~0=20} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_94affd24-0662-4e45-8b2c-8996ec044c0b/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 [2018-11-18 08:34:40,863 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 08:34:40,863 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_94affd24-0662-4e45-8b2c-8996ec044c0b/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 [2018-11-18 08:34:40,881 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 08:34:40,881 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 08:34:40,909 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-18 08:34:40,909 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 08:34:40,910 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 08:34:40,910 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 08:34:40,910 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 08:34:40,910 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 08:34:40,910 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 08:34:40,910 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 08:34:40,910 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 08:34:40,910 INFO L131 ssoRankerPreferences]: Filename of dumped script: cggmp2005b_true-unreach-call_true-termination.c.i_Iteration2_Loop [2018-11-18 08:34:40,910 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 08:34:40,910 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 08:34:40,911 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 08:34:40,913 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 08:34:40,922 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 08:34:40,955 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 08:34:40,959 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 08:34:40,960 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 [2018-11-18 08:34:40,961 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 08:34:40,962 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 08:34:40,962 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 08:34:40,962 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 08:34:40,962 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 08:34:40,964 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 08:34:40,964 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 08:34:40,966 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 08:34:40,966 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 [2018-11-18 08:34:40,967 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 08:34:40,967 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 08:34:40,967 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 08:34:40,967 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 08:34:40,968 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 08:34:40,968 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 08:34:40,968 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 08:34:40,973 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 08:34:40,976 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-18 08:34:40,977 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-18 08:34:40,978 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 08:34:40,978 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-18 08:34:40,979 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 08:34:40,979 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 201 Supporting invariants [] [2018-11-18 08:34:40,980 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-18 08:34:41,006 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:34:41,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:34:41,013 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 08:34:41,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:34:41,020 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 08:34:41,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 08:34:41,056 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 [2018-11-18 08:34:41,056 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 11 transitions. cyclomatic complexity: 3 Second operand 4 states. [2018-11-18 08:34:41,078 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 11 transitions. cyclomatic complexity: 3. Second operand 4 states. Result 20 states and 25 transitions. Complement of second has 4 states. [2018-11-18 08:34:41,078 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-18 08:34:41,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 08:34:41,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 13 transitions. [2018-11-18 08:34:41,080 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 2 letters. Loop has 7 letters. [2018-11-18 08:34:41,081 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 08:34:41,082 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 9 letters. Loop has 7 letters. [2018-11-18 08:34:41,082 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 08:34:41,082 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 2 letters. Loop has 14 letters. [2018-11-18 08:34:41,082 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 08:34:41,082 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 25 transitions. [2018-11-18 08:34:41,083 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2018-11-18 08:34:41,084 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 17 states and 22 transitions. [2018-11-18 08:34:41,084 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2018-11-18 08:34:41,084 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2018-11-18 08:34:41,084 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 22 transitions. [2018-11-18 08:34:41,084 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-18 08:34:41,085 INFO L705 BuchiCegarLoop]: Abstraction has 17 states and 22 transitions. [2018-11-18 08:34:41,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 22 transitions. [2018-11-18 08:34:41,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2018-11-18 08:34:41,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-11-18 08:34:41,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 20 transitions. [2018-11-18 08:34:41,086 INFO L728 BuchiCegarLoop]: Abstraction has 16 states and 20 transitions. [2018-11-18 08:34:41,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 08:34:41,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 08:34:41,086 INFO L87 Difference]: Start difference. First operand 16 states and 20 transitions. Second operand 3 states. [2018-11-18 08:34:41,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:34:41,091 INFO L93 Difference]: Finished difference Result 20 states and 25 transitions. [2018-11-18 08:34:41,091 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 08:34:41,091 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 25 transitions. [2018-11-18 08:34:41,092 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2018-11-18 08:34:41,093 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 20 states and 25 transitions. [2018-11-18 08:34:41,093 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2018-11-18 08:34:41,093 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2018-11-18 08:34:41,093 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 25 transitions. [2018-11-18 08:34:41,093 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-18 08:34:41,093 INFO L705 BuchiCegarLoop]: Abstraction has 20 states and 25 transitions. [2018-11-18 08:34:41,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 25 transitions. [2018-11-18 08:34:41,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2018-11-18 08:34:41,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-11-18 08:34:41,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 25 transitions. [2018-11-18 08:34:41,095 INFO L728 BuchiCegarLoop]: Abstraction has 20 states and 25 transitions. [2018-11-18 08:34:41,095 INFO L608 BuchiCegarLoop]: Abstraction has 20 states and 25 transitions. [2018-11-18 08:34:41,095 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-18 08:34:41,095 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 25 transitions. [2018-11-18 08:34:41,096 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2018-11-18 08:34:41,096 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 08:34:41,096 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 08:34:41,096 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-11-18 08:34:41,096 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-18 08:34:41,096 INFO L794 eck$LassoCheckResult]: Stem: 155#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 153#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_~i~0, main_~j~0, main_~k~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;main_~i~0 := 0;main_~k~0 := 9;main_~j~0 := -100; 154#L21-4 assume true; 160#L15-1 assume !!(main_~i~0 <= 100);main_~i~0 := 1 + main_~i~0; 172#L17-3 assume true; 156#L17-1 assume !!(main_~j~0 < 20);main_~j~0 := main_~i~0 + main_~j~0; 157#L17-3 [2018-11-18 08:34:41,096 INFO L796 eck$LassoCheckResult]: Loop: 157#L17-3 assume true; 170#L17-1 assume !!(main_~j~0 < 20);main_~j~0 := main_~i~0 + main_~j~0; 157#L17-3 [2018-11-18 08:34:41,097 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:34:41,097 INFO L82 PathProgramCache]: Analyzing trace with hash 889541519, now seen corresponding path program 1 times [2018-11-18 08:34:41,097 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:34:41,097 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:34:41,098 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:41,098 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:34:41,098 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:41,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:34:41,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:34:41,105 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:34:41,106 INFO L82 PathProgramCache]: Analyzing trace with hash 1479, now seen corresponding path program 1 times [2018-11-18 08:34:41,106 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:34:41,106 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:34:41,106 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:41,107 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:34:41,107 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:41,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:34:41,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:34:41,110 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:34:41,110 INFO L82 PathProgramCache]: Analyzing trace with hash 150908373, now seen corresponding path program 2 times [2018-11-18 08:34:41,110 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:34:41,110 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:34:41,111 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:41,111 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:34:41,111 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:41,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:34:41,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:34:41,165 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 08:34:41,165 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 08:34:41,165 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 08:34:41,165 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 08:34:41,165 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 08:34:41,165 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 08:34:41,165 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 08:34:41,166 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 08:34:41,166 INFO L131 ssoRankerPreferences]: Filename of dumped script: cggmp2005b_true-unreach-call_true-termination.c.i_Iteration3_Lasso [2018-11-18 08:34:41,166 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 08:34:41,166 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 08:34:41,167 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 08:34:41,178 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 08:34:41,180 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 08:34:41,215 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 08:34:41,215 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_94affd24-0662-4e45-8b2c-8996ec044c0b/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 [2018-11-18 08:34:41,216 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 08:34:41,216 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_94affd24-0662-4e45-8b2c-8996ec044c0b/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 [2018-11-18 08:34:41,234 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 08:34:41,234 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 08:34:41,643 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-18 08:34:41,644 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 08:34:41,644 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 08:34:41,644 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 08:34:41,644 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 08:34:41,644 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 08:34:41,645 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 08:34:41,645 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 08:34:41,645 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 08:34:41,645 INFO L131 ssoRankerPreferences]: Filename of dumped script: cggmp2005b_true-unreach-call_true-termination.c.i_Iteration3_Lasso [2018-11-18 08:34:41,645 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 08:34:41,645 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 08:34:41,646 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 08:34:41,652 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 08:34:41,653 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 08:34:41,678 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 08:34:41,679 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 08:34:41,679 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 [2018-11-18 08:34:41,679 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 08:34:41,680 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 08:34:41,680 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 08:34:41,680 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 08:34:41,682 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 08:34:41,682 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 08:34:41,701 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 08:34:41,714 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2018-11-18 08:34:41,714 INFO L444 ModelExtractionUtils]: 2 out of 10 variables were initially zero. Simplification set additionally 3 variables to zero. [2018-11-18 08:34:41,715 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 08:34:41,717 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-18 08:34:41,717 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 08:34:41,717 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0) = -2*ULTIMATE.start_main_~j~0 + 39 Supporting invariants [1*ULTIMATE.start_main_~i~0 - 1 >= 0] [2018-11-18 08:34:41,720 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-18 08:34:41,761 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:34:41,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:34:41,766 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 08:34:41,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:34:41,788 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 08:34:41,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 08:34:41,788 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 1 loop predicates [2018-11-18 08:34:41,789 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 25 transitions. cyclomatic complexity: 8 Second operand 5 states. [2018-11-18 08:34:41,816 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 25 transitions. cyclomatic complexity: 8. Second operand 5 states. Result 34 states and 45 transitions. Complement of second has 6 states. [2018-11-18 08:34:41,816 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 3 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-18 08:34:41,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-18 08:34:41,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 16 transitions. [2018-11-18 08:34:41,816 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 6 letters. Loop has 2 letters. [2018-11-18 08:34:41,817 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 08:34:41,817 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 8 letters. Loop has 2 letters. [2018-11-18 08:34:41,817 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 08:34:41,817 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 6 letters. Loop has 4 letters. [2018-11-18 08:34:41,817 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 08:34:41,817 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 45 transitions. [2018-11-18 08:34:41,818 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-18 08:34:41,819 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 31 states and 40 transitions. [2018-11-18 08:34:41,819 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2018-11-18 08:34:41,819 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2018-11-18 08:34:41,819 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 40 transitions. [2018-11-18 08:34:41,819 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-18 08:34:41,819 INFO L705 BuchiCegarLoop]: Abstraction has 31 states and 40 transitions. [2018-11-18 08:34:41,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 40 transitions. [2018-11-18 08:34:41,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 30. [2018-11-18 08:34:41,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-11-18 08:34:41,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 39 transitions. [2018-11-18 08:34:41,822 INFO L728 BuchiCegarLoop]: Abstraction has 30 states and 39 transitions. [2018-11-18 08:34:41,822 INFO L608 BuchiCegarLoop]: Abstraction has 30 states and 39 transitions. [2018-11-18 08:34:41,822 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-18 08:34:41,822 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 30 states and 39 transitions. [2018-11-18 08:34:41,823 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-18 08:34:41,823 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 08:34:41,823 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 08:34:41,823 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:34:41,823 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-18 08:34:41,824 INFO L794 eck$LassoCheckResult]: Stem: 269#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 264#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_~i~0, main_~j~0, main_~k~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;main_~i~0 := 0;main_~k~0 := 9;main_~j~0 := -100; 265#L21-4 assume true; 270#L15-1 assume !!(main_~i~0 <= 100);main_~i~0 := 1 + main_~i~0; 286#L17-3 assume true; 285#L17-1 assume !!(main_~j~0 < 20);main_~j~0 := main_~i~0 + main_~j~0; 280#L17-3 assume true; 281#L17-1 assume !(main_~j~0 < 20); 277#L17-4 main_~k~0 := 4; 273#L21-3 [2018-11-18 08:34:41,824 INFO L796 eck$LassoCheckResult]: Loop: 273#L21-3 assume true; 274#L21-1 assume !!(main_~k~0 <= 3);main_~k~0 := 1 + main_~k~0; 273#L21-3 [2018-11-18 08:34:41,824 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:34:41,824 INFO L82 PathProgramCache]: Analyzing trace with hash 383192231, now seen corresponding path program 1 times [2018-11-18 08:34:41,824 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:34:41,824 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:34:41,825 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:41,825 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 08:34:41,825 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:41,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:34:41,855 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 08:34:41,855 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 08:34:41,855 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_94affd24-0662-4e45-8b2c-8996ec044c0b/bin-2019/uautomizer/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 08:34:41,873 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:34:41,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:34:41,879 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 08:34:41,932 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 08:34:41,947 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 08:34:41,947 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2018-11-18 08:34:41,947 INFO L799 eck$LassoCheckResult]: stem already infeasible [2018-11-18 08:34:41,947 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:34:41,948 INFO L82 PathProgramCache]: Analyzing trace with hash 1927, now seen corresponding path program 1 times [2018-11-18 08:34:41,948 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:34:41,948 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:34:41,948 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:41,949 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:34:41,949 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:41,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:34:41,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:34:41,964 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 08:34:41,964 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 08:34:41,964 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 08:34:41,964 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 08:34:41,964 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 08:34:41,964 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 08:34:41,964 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 08:34:41,965 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 08:34:41,965 INFO L131 ssoRankerPreferences]: Filename of dumped script: cggmp2005b_true-unreach-call_true-termination.c.i_Iteration4_Loop [2018-11-18 08:34:41,965 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 08:34:41,965 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 08:34:41,965 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 08:34:41,989 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 08:34:41,990 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_94affd24-0662-4e45-8b2c-8996ec044c0b/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 [2018-11-18 08:34:41,993 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 08:34:41,993 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_94affd24-0662-4e45-8b2c-8996ec044c0b/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 [2018-11-18 08:34:42,010 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 08:34:42,010 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 08:34:42,029 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-18 08:34:42,030 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 08:34:42,030 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 08:34:42,030 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 08:34:42,030 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 08:34:42,030 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 08:34:42,030 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 08:34:42,030 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 08:34:42,031 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 08:34:42,031 INFO L131 ssoRankerPreferences]: Filename of dumped script: cggmp2005b_true-unreach-call_true-termination.c.i_Iteration4_Loop [2018-11-18 08:34:42,031 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 08:34:42,031 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 08:34:42,031 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 08:34:42,046 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 08:34:42,046 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 08:34:42,046 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 [2018-11-18 08:34:42,047 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 08:34:42,047 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 08:34:42,047 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 08:34:42,047 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 08:34:42,047 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 08:34:42,048 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 08:34:42,048 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 08:34:42,049 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 08:34:42,052 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-18 08:34:42,052 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-18 08:34:42,053 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 08:34:42,053 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-18 08:34:42,053 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 08:34:42,053 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~k~0) = -2*ULTIMATE.start_main_~k~0 + 7 Supporting invariants [] [2018-11-18 08:34:42,054 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-18 08:34:42,067 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:34:42,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:34:42,072 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 08:34:42,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:34:42,076 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 08:34:42,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 08:34:42,077 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-11-18 08:34:42,077 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 30 states and 39 transitions. cyclomatic complexity: 13 Second operand 3 states. [2018-11-18 08:34:42,092 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 30 states and 39 transitions. cyclomatic complexity: 13. Second operand 3 states. Result 82 states and 106 transitions. Complement of second has 5 states. [2018-11-18 08:34:42,093 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-18 08:34:42,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-18 08:34:42,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 16 transitions. [2018-11-18 08:34:42,093 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 9 letters. Loop has 2 letters. [2018-11-18 08:34:42,093 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 08:34:42,093 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 11 letters. Loop has 2 letters. [2018-11-18 08:34:42,094 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 08:34:42,094 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 9 letters. Loop has 4 letters. [2018-11-18 08:34:42,094 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 08:34:42,094 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 82 states and 106 transitions. [2018-11-18 08:34:42,096 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-18 08:34:42,097 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 82 states to 55 states and 71 transitions. [2018-11-18 08:34:42,097 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2018-11-18 08:34:42,097 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2018-11-18 08:34:42,097 INFO L73 IsDeterministic]: Start isDeterministic. Operand 55 states and 71 transitions. [2018-11-18 08:34:42,097 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-18 08:34:42,097 INFO L705 BuchiCegarLoop]: Abstraction has 55 states and 71 transitions. [2018-11-18 08:34:42,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states and 71 transitions. [2018-11-18 08:34:42,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 39. [2018-11-18 08:34:42,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-11-18 08:34:42,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 50 transitions. [2018-11-18 08:34:42,099 INFO L728 BuchiCegarLoop]: Abstraction has 39 states and 50 transitions. [2018-11-18 08:34:42,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-18 08:34:42,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-11-18 08:34:42,099 INFO L87 Difference]: Start difference. First operand 39 states and 50 transitions. Second operand 8 states. [2018-11-18 08:34:42,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:34:42,127 INFO L93 Difference]: Finished difference Result 42 states and 53 transitions. [2018-11-18 08:34:42,127 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 08:34:42,127 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 53 transitions. [2018-11-18 08:34:42,128 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-18 08:34:42,128 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 41 states and 52 transitions. [2018-11-18 08:34:42,128 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2018-11-18 08:34:42,129 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2018-11-18 08:34:42,129 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 52 transitions. [2018-11-18 08:34:42,129 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-18 08:34:42,129 INFO L705 BuchiCegarLoop]: Abstraction has 41 states and 52 transitions. [2018-11-18 08:34:42,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states and 52 transitions. [2018-11-18 08:34:42,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-11-18 08:34:42,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-11-18 08:34:42,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 52 transitions. [2018-11-18 08:34:42,132 INFO L728 BuchiCegarLoop]: Abstraction has 41 states and 52 transitions. [2018-11-18 08:34:42,132 INFO L608 BuchiCegarLoop]: Abstraction has 41 states and 52 transitions. [2018-11-18 08:34:42,132 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-11-18 08:34:42,132 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 41 states and 52 transitions. [2018-11-18 08:34:42,133 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-18 08:34:42,133 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 08:34:42,133 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 08:34:42,133 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [4, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2018-11-18 08:34:42,133 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-18 08:34:42,134 INFO L794 eck$LassoCheckResult]: Stem: 547#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 542#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_~i~0, main_~j~0, main_~k~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;main_~i~0 := 0;main_~k~0 := 9;main_~j~0 := -100; 543#L21-4 assume true; 548#L15-1 assume !!(main_~i~0 <= 100);main_~i~0 := 1 + main_~i~0; 557#L17-3 assume true; 558#L17-1 assume !!(main_~j~0 < 20);main_~j~0 := main_~i~0 + main_~j~0; 581#L17-3 assume true; 578#L17-1 assume !!(main_~j~0 < 20);main_~j~0 := main_~i~0 + main_~j~0; 576#L17-3 assume true; 577#L17-1 assume !(main_~j~0 < 20); 574#L17-4 main_~k~0 := 4; 560#L21-3 assume true; 567#L21-1 assume !(main_~k~0 <= 3); 549#L21-4 assume true; 550#L15-1 assume !!(main_~i~0 <= 100);main_~i~0 := 1 + main_~i~0; 582#L17-3 assume true; 561#L17-1 assume !(main_~j~0 < 20); 555#L17-4 main_~k~0 := 4; 551#L21-3 [2018-11-18 08:34:42,134 INFO L796 eck$LassoCheckResult]: Loop: 551#L21-3 assume true; 552#L21-1 assume !!(main_~k~0 <= 3);main_~k~0 := 1 + main_~k~0; 551#L21-3 [2018-11-18 08:34:42,134 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:34:42,134 INFO L82 PathProgramCache]: Analyzing trace with hash -1497666805, now seen corresponding path program 1 times [2018-11-18 08:34:42,134 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:34:42,134 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:34:42,135 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:42,135 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:34:42,135 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:42,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:34:42,161 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-18 08:34:42,161 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 08:34:42,161 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_94affd24-0662-4e45-8b2c-8996ec044c0b/bin-2019/uautomizer/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 08:34:42,167 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:34:42,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:34:42,171 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 08:34:42,215 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-18 08:34:42,230 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 08:34:42,230 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2018-11-18 08:34:42,231 INFO L799 eck$LassoCheckResult]: stem already infeasible [2018-11-18 08:34:42,231 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:34:42,231 INFO L82 PathProgramCache]: Analyzing trace with hash 1927, now seen corresponding path program 2 times [2018-11-18 08:34:42,231 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:34:42,231 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:34:42,231 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:42,232 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:34:42,232 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:42,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:34:42,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:34:42,239 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 08:34:42,239 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 08:34:42,239 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 08:34:42,240 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 08:34:42,240 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 08:34:42,240 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 08:34:42,240 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 08:34:42,240 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 08:34:42,240 INFO L131 ssoRankerPreferences]: Filename of dumped script: cggmp2005b_true-unreach-call_true-termination.c.i_Iteration5_Loop [2018-11-18 08:34:42,240 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 08:34:42,240 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 08:34:42,241 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 08:34:42,255 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 08:34:42,255 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_94affd24-0662-4e45-8b2c-8996ec044c0b/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 [2018-11-18 08:34:42,257 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 08:34:42,257 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_94affd24-0662-4e45-8b2c-8996ec044c0b/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 [2018-11-18 08:34:42,274 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 08:34:42,274 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 08:34:42,290 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-18 08:34:42,291 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 08:34:42,291 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 08:34:42,291 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 08:34:42,291 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 08:34:42,291 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 08:34:42,292 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 08:34:42,292 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 08:34:42,292 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 08:34:42,292 INFO L131 ssoRankerPreferences]: Filename of dumped script: cggmp2005b_true-unreach-call_true-termination.c.i_Iteration5_Loop [2018-11-18 08:34:42,292 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 08:34:42,292 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 08:34:42,292 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 08:34:42,304 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 08:34:42,304 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 08:34:42,304 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 [2018-11-18 08:34:42,305 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 08:34:42,305 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 08:34:42,305 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 08:34:42,305 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 08:34:42,305 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 08:34:42,305 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 08:34:42,306 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 08:34:42,307 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 08:34:42,308 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-18 08:34:42,308 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-18 08:34:42,309 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 08:34:42,309 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-18 08:34:42,309 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 08:34:42,309 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~k~0) = -2*ULTIMATE.start_main_~k~0 + 7 Supporting invariants [] [2018-11-18 08:34:42,309 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-18 08:34:42,328 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:34:42,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:34:42,334 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 08:34:42,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:34:42,345 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 08:34:42,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 08:34:42,345 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-11-18 08:34:42,345 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 41 states and 52 transitions. cyclomatic complexity: 18 Second operand 3 states. [2018-11-18 08:34:42,355 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 41 states and 52 transitions. cyclomatic complexity: 18. Second operand 3 states. Result 78 states and 98 transitions. Complement of second has 5 states. [2018-11-18 08:34:42,355 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-18 08:34:42,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-18 08:34:42,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 16 transitions. [2018-11-18 08:34:42,356 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 18 letters. Loop has 2 letters. [2018-11-18 08:34:42,356 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 08:34:42,356 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-18 08:34:42,363 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:34:42,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:34:42,368 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 08:34:42,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:34:42,373 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 08:34:42,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 08:34:42,374 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2018-11-18 08:34:42,374 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 41 states and 52 transitions. cyclomatic complexity: 18 Second operand 3 states. [2018-11-18 08:34:42,380 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 41 states and 52 transitions. cyclomatic complexity: 18. Second operand 3 states. Result 78 states and 98 transitions. Complement of second has 5 states. [2018-11-18 08:34:42,380 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-18 08:34:42,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-18 08:34:42,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 16 transitions. [2018-11-18 08:34:42,381 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 18 letters. Loop has 2 letters. [2018-11-18 08:34:42,381 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 08:34:42,381 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-18 08:34:42,391 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:34:42,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:34:42,395 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 08:34:42,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:34:42,397 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 08:34:42,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 08:34:42,398 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-11-18 08:34:42,398 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 41 states and 52 transitions. cyclomatic complexity: 18 Second operand 3 states. [2018-11-18 08:34:42,404 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 41 states and 52 transitions. cyclomatic complexity: 18. Second operand 3 states. Result 66 states and 84 transitions. Complement of second has 4 states. [2018-11-18 08:34:42,404 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-18 08:34:42,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-18 08:34:42,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 20 transitions. [2018-11-18 08:34:42,405 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 20 transitions. Stem has 18 letters. Loop has 2 letters. [2018-11-18 08:34:42,405 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 08:34:42,405 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 20 transitions. Stem has 20 letters. Loop has 2 letters. [2018-11-18 08:34:42,405 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 08:34:42,405 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 20 transitions. Stem has 18 letters. Loop has 4 letters. [2018-11-18 08:34:42,406 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 08:34:42,406 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 66 states and 84 transitions. [2018-11-18 08:34:42,409 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-18 08:34:42,409 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 66 states to 0 states and 0 transitions. [2018-11-18 08:34:42,409 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-18 08:34:42,409 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-18 08:34:42,409 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-18 08:34:42,409 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 08:34:42,409 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 08:34:42,409 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 08:34:42,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 08:34:42,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-11-18 08:34:42,412 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 9 states. [2018-11-18 08:34:42,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:34:42,412 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2018-11-18 08:34:42,412 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 08:34:42,412 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2018-11-18 08:34:42,412 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-18 08:34:42,412 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 08:34:42,412 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-18 08:34:42,412 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-18 08:34:42,412 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-18 08:34:42,413 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 08:34:42,413 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 08:34:42,413 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 08:34:42,413 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 08:34:42,413 INFO L442 BuchiCegarLoop]: ======== Iteration 6============ [2018-11-18 08:34:42,413 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-18 08:34:42,413 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-18 08:34:42,413 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-18 08:34:42,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 08:34:42 BoogieIcfgContainer [2018-11-18 08:34:42,417 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-18 08:34:42,418 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 08:34:42,418 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 08:34:42,418 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 08:34:42,419 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:34:40" (3/4) ... [2018-11-18 08:34:42,421 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 08:34:42,422 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 08:34:42,422 INFO L168 Benchmark]: Toolchain (without parser) took 2376.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.6 MB). Free memory was 959.8 MB in the beginning and 886.2 MB in the end (delta: 73.6 MB). Peak memory consumption was 227.2 MB. Max. memory is 11.5 GB. [2018-11-18 08:34:42,423 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 982.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 08:34:42,423 INFO L168 Benchmark]: CACSL2BoogieTranslator took 144.23 ms. Allocated memory is still 1.0 GB. Free memory was 959.8 MB in the beginning and 949.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 08:34:42,424 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.09 ms. Allocated memory is still 1.0 GB. Free memory was 949.1 MB in the beginning and 943.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-18 08:34:42,424 INFO L168 Benchmark]: Boogie Preprocessor took 11.65 ms. Allocated memory is still 1.0 GB. Free memory is still 943.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 08:34:42,425 INFO L168 Benchmark]: RCFGBuilder took 196.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.6 MB). Free memory was 943.7 MB in the beginning and 1.1 GB in the end (delta: -189.8 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. [2018-11-18 08:34:42,425 INFO L168 Benchmark]: BuchiAutomizer took 1999.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 886.2 MB in the end (delta: 247.3 MB). Peak memory consumption was 247.3 MB. Max. memory is 11.5 GB. [2018-11-18 08:34:42,426 INFO L168 Benchmark]: Witness Printer took 3.76 ms. Allocated memory is still 1.2 GB. Free memory is still 886.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 08:34:42,428 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 982.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 144.23 ms. Allocated memory is still 1.0 GB. Free memory was 959.8 MB in the beginning and 949.1 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 18.09 ms. Allocated memory is still 1.0 GB. Free memory was 949.1 MB in the beginning and 943.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.65 ms. Allocated memory is still 1.0 GB. Free memory is still 943.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 196.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.6 MB). Free memory was 943.7 MB in the beginning and 1.1 GB in the end (delta: -189.8 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1999.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 886.2 MB in the end (delta: 247.3 MB). Peak memory consumption was 247.3 MB. Max. memory is 11.5 GB. * Witness Printer took 3.76 ms. Allocated memory is still 1.2 GB. Free memory is still 886.2 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 8 terminating modules (4 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -2 * i + 201 and consists of 3 locations. One deterministic module has affine ranking function -2 * j + 39 and consists of 5 locations. One deterministic module has affine ranking function -2 * k + 7 and consists of 3 locations. One nondeterministic module has affine ranking function -2 * k + 7 and consists of 3 locations. 4 modules have a trivial ranking function, the largest among these consists of 9 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.9s and 6 iterations. TraceHistogramMax:4. Analysis of lassos took 1.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 18 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 41 states and ocurred in iteration 4. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 119 SDtfs, 88 SDslu, 64 SDs, 0 SdLazy, 43 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc0 concLT1 SILN0 SILU0 SILI0 SILT2 lasso1 LassoPreprocessingBenchmarks: Lassos: inital14 mio100 ax100 hnf98 lsp87 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq167 hnf93 smp100 dnf100 smp100 tf109 neg100 sie101 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 38ms VariablesStem: 2 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...