./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/loop-invgen/up_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_979d343e-9bd8-471a-b4dc-8265cf3cc720/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_979d343e-9bd8-471a-b4dc-8265cf3cc720/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_979d343e-9bd8-471a-b4dc-8265cf3cc720/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_979d343e-9bd8-471a-b4dc-8265cf3cc720/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-invgen/up_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_979d343e-9bd8-471a-b4dc-8265cf3cc720/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_979d343e-9bd8-471a-b4dc-8265cf3cc720/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 1d0e5aa3c59efbda0d367d965a49cbb0222f117b .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-09 22:53:57,684 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-09 22:53:57,685 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-09 22:53:57,692 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-09 22:53:57,692 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-09 22:53:57,693 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-09 22:53:57,694 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-09 22:53:57,694 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-09 22:53:57,695 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-09 22:53:57,696 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-09 22:53:57,696 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-09 22:53:57,696 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-09 22:53:57,697 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-09 22:53:57,697 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-09 22:53:57,698 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-09 22:53:57,698 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-09 22:53:57,699 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-09 22:53:57,700 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-09 22:53:57,701 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-09 22:53:57,702 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-09 22:53:57,703 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-09 22:53:57,703 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-09 22:53:57,704 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-09 22:53:57,704 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-09 22:53:57,705 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-09 22:53:57,705 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-09 22:53:57,706 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-09 22:53:57,707 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-09 22:53:57,707 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-09 22:53:57,708 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-09 22:53:57,708 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-09 22:53:57,709 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-09 22:53:57,709 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-09 22:53:57,709 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-09 22:53:57,710 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-09 22:53:57,710 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-09 22:53:57,710 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_979d343e-9bd8-471a-b4dc-8265cf3cc720/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-09 22:53:57,718 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-09 22:53:57,719 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-09 22:53:57,719 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-09 22:53:57,719 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-09 22:53:57,720 INFO L133 SettingsManager]: * Use SBE=true [2018-11-09 22:53:57,720 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-09 22:53:57,720 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-09 22:53:57,720 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-09 22:53:57,720 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-09 22:53:57,720 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-09 22:53:57,720 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-09 22:53:57,721 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-09 22:53:57,721 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-09 22:53:57,721 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-09 22:53:57,721 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-09 22:53:57,721 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-09 22:53:57,721 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-09 22:53:57,721 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-09 22:53:57,721 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-09 22:53:57,722 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-09 22:53:57,722 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-09 22:53:57,722 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-09 22:53:57,722 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-09 22:53:57,722 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-09 22:53:57,722 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-09 22:53:57,723 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-09 22:53:57,723 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-09 22:53:57,723 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-09 22:53:57,723 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-09 22:53:57,723 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-09 22:53:57,724 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-09 22:53:57,724 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_979d343e-9bd8-471a-b4dc-8265cf3cc720/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 -> 1d0e5aa3c59efbda0d367d965a49cbb0222f117b [2018-11-09 22:53:57,747 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-09 22:53:57,756 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-09 22:53:57,759 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-09 22:53:57,760 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-09 22:53:57,760 INFO L276 PluginConnector]: CDTParser initialized [2018-11-09 22:53:57,761 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_979d343e-9bd8-471a-b4dc-8265cf3cc720/bin-2019/uautomizer/../../sv-benchmarks/c/loop-invgen/up_true-unreach-call_true-termination.i [2018-11-09 22:53:57,801 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_979d343e-9bd8-471a-b4dc-8265cf3cc720/bin-2019/uautomizer/data/8e8da5d90/0563973be7424b829d7bb02ae4d744f2/FLAG493fb37b3 [2018-11-09 22:53:58,209 INFO L298 CDTParser]: Found 1 translation units. [2018-11-09 22:53:58,209 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_979d343e-9bd8-471a-b4dc-8265cf3cc720/sv-benchmarks/c/loop-invgen/up_true-unreach-call_true-termination.i [2018-11-09 22:53:58,213 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_979d343e-9bd8-471a-b4dc-8265cf3cc720/bin-2019/uautomizer/data/8e8da5d90/0563973be7424b829d7bb02ae4d744f2/FLAG493fb37b3 [2018-11-09 22:53:58,222 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_979d343e-9bd8-471a-b4dc-8265cf3cc720/bin-2019/uautomizer/data/8e8da5d90/0563973be7424b829d7bb02ae4d744f2 [2018-11-09 22:53:58,224 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-09 22:53:58,226 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-09 22:53:58,226 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-09 22:53:58,226 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-09 22:53:58,230 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-09 22:53:58,230 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:53:58" (1/1) ... [2018-11-09 22:53:58,232 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44d995a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:53:58, skipping insertion in model container [2018-11-09 22:53:58,232 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:53:58" (1/1) ... [2018-11-09 22:53:58,238 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-09 22:53:58,251 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-09 22:53:58,350 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-09 22:53:58,352 INFO L189 MainTranslator]: Completed pre-run [2018-11-09 22:53:58,361 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-09 22:53:58,370 INFO L193 MainTranslator]: Completed translation [2018-11-09 22:53:58,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:53:58 WrapperNode [2018-11-09 22:53:58,370 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-09 22:53:58,371 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-09 22:53:58,371 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-09 22:53:58,371 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-09 22:53:58,378 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:53:58" (1/1) ... [2018-11-09 22:53:58,381 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:53:58" (1/1) ... [2018-11-09 22:53:58,390 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-09 22:53:58,390 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-09 22:53:58,390 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-09 22:53:58,391 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-09 22:53:58,396 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:53:58" (1/1) ... [2018-11-09 22:53:58,396 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:53:58" (1/1) ... [2018-11-09 22:53:58,396 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:53:58" (1/1) ... [2018-11-09 22:53:58,396 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:53:58" (1/1) ... [2018-11-09 22:53:58,397 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:53:58" (1/1) ... [2018-11-09 22:53:58,400 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:53:58" (1/1) ... [2018-11-09 22:53:58,400 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:53:58" (1/1) ... [2018-11-09 22:53:58,401 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-09 22:53:58,401 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-09 22:53:58,401 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-09 22:53:58,401 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-09 22:53:58,402 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:53:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_979d343e-9bd8-471a-b4dc-8265cf3cc720/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 [2018-11-09 22:53:58,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-09 22:53:58,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-09 22:53:58,564 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-09 22:53:58,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:53:58 BoogieIcfgContainer [2018-11-09 22:53:58,564 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-09 22:53:58,565 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-09 22:53:58,565 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-09 22:53:58,568 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-09 22:53:58,569 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-09 22:53:58,569 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 09.11 10:53:58" (1/3) ... [2018-11-09 22:53:58,570 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@76a63d0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.11 10:53:58, skipping insertion in model container [2018-11-09 22:53:58,570 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-09 22:53:58,570 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:53:58" (2/3) ... [2018-11-09 22:53:58,570 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@76a63d0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.11 10:53:58, skipping insertion in model container [2018-11-09 22:53:58,570 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-09 22:53:58,571 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:53:58" (3/3) ... [2018-11-09 22:53:58,572 INFO L375 chiAutomizerObserver]: Analyzing ICFG up_true-unreach-call_true-termination.i [2018-11-09 22:53:58,618 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-09 22:53:58,618 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-09 22:53:58,619 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-09 22:53:58,619 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-09 22:53:58,619 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-09 22:53:58,619 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-09 22:53:58,619 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-09 22:53:58,619 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-09 22:53:58,619 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-09 22:53:58,630 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states. [2018-11-09 22:53:58,646 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2018-11-09 22:53:58,647 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-09 22:53:58,647 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-09 22:53:58,652 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-09 22:53:58,652 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-09 22:53:58,652 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-09 22:53:58,653 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states. [2018-11-09 22:53:58,654 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2018-11-09 22:53:58,654 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-09 22:53:58,654 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-09 22:53:58,654 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-09 22:53:58,654 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-09 22:53:58,661 INFO L793 eck$LassoCheckResult]: Stem: 8#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 6#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet1, main_#t~post2, main_#t~post3, main_#t~post4, main_#t~post5, main_~n~0, main_~i~0, main_~k~0, main_~j~0;havoc main_~n~0;main_~i~0 := 0;main_~k~0 := 0;main_~n~0 := main_#t~nondet1;havoc main_#t~nondet1; 10#L15-3true [2018-11-09 22:53:58,661 INFO L795 eck$LassoCheckResult]: Loop: 10#L15-3true assume true; 14#L15-1true assume !!(main_~i~0 < main_~n~0);main_#t~post2 := main_~i~0;main_~i~0 := main_#t~post2 + 1;havoc main_#t~post2;main_#t~post3 := main_~k~0;main_~k~0 := main_#t~post3 + 1;havoc main_#t~post3; 10#L15-3true [2018-11-09 22:53:58,666 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-09 22:53:58,666 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2018-11-09 22:53:58,667 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-09 22:53:58,669 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-09 22:53:58,700 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 22:53:58,700 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-09 22:53:58,700 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 22:53:58,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-09 22:53:58,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-09 22:53:58,731 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-09 22:53:58,732 INFO L82 PathProgramCache]: Analyzing trace with hash 1159, now seen corresponding path program 1 times [2018-11-09 22:53:58,732 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-09 22:53:58,732 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-09 22:53:58,732 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 22:53:58,732 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-09 22:53:58,732 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 22:53:58,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-09 22:53:58,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-09 22:53:58,740 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-09 22:53:58,740 INFO L82 PathProgramCache]: Analyzing trace with hash 925641, now seen corresponding path program 1 times [2018-11-09 22:53:58,740 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-09 22:53:58,740 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-09 22:53:58,741 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 22:53:58,741 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-09 22:53:58,741 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 22:53:58,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-09 22:53:58,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-09 22:53:58,787 INFO L214 LassoAnalysis]: Preferences: [2018-11-09 22:53:58,788 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-09 22:53:58,788 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-09 22:53:58,788 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-09 22:53:58,788 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-09 22:53:58,788 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-09 22:53:58,788 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-09 22:53:58,789 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-09 22:53:58,789 INFO L131 ssoRankerPreferences]: Filename of dumped script: up_true-unreach-call_true-termination.i_Iteration1_Loop [2018-11-09 22:53:58,789 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-09 22:53:58,789 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-09 22:53:58,802 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-09 22:53:58,808 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-09 22:53:58,810 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-09 22:53:58,813 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-09 22:53:58,861 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-09 22:53:58,861 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_979d343e-9bd8-471a-b4dc-8265cf3cc720/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 [2018-11-09 22:53:58,865 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-09 22:53:58,865 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_979d343e-9bd8-471a-b4dc-8265cf3cc720/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 [2018-11-09 22:53:58,887 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-09 22:53:58,887 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-09 22:53:58,898 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-09 22:53:58,898 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~k~0=0} Honda state: {ULTIMATE.start_main_~k~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~k~0=5}, {ULTIMATE.start_main_~k~0=4}, {ULTIMATE.start_main_~k~0=-8}] Lambdas: [1, 3, 1] Nus: [0, 1] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_979d343e-9bd8-471a-b4dc-8265cf3cc720/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 [2018-11-09 22:53:58,914 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-09 22:53:58,915 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-09 22:53:58,918 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-09 22:53:58,918 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post2=0} Honda state: {ULTIMATE.start_main_#t~post2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_979d343e-9bd8-471a-b4dc-8265cf3cc720/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 [2018-11-09 22:53:58,944 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-09 22:53:58,944 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-09 22:53:58,947 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-09 22:53:58,947 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post3=0} Honda state: {ULTIMATE.start_main_#t~post3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_979d343e-9bd8-471a-b4dc-8265cf3cc720/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 [2018-11-09 22:53:58,963 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-09 22:53:58,963 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_979d343e-9bd8-471a-b4dc-8265cf3cc720/bin-2019/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-09 22:53:58,981 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-09 22:53:58,981 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-09 22:53:59,158 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-09 22:53:59,160 INFO L214 LassoAnalysis]: Preferences: [2018-11-09 22:53:59,160 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-09 22:53:59,160 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-09 22:53:59,160 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-09 22:53:59,160 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-09 22:53:59,160 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-09 22:53:59,160 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-09 22:53:59,160 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-09 22:53:59,160 INFO L131 ssoRankerPreferences]: Filename of dumped script: up_true-unreach-call_true-termination.i_Iteration1_Loop [2018-11-09 22:53:59,160 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-09 22:53:59,160 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-09 22:53:59,161 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-09 22:53:59,164 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-09 22:53:59,171 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-09 22:53:59,173 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-09 22:53:59,202 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-09 22:53:59,205 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-09 22:53:59,206 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 [2018-11-09 22:53:59,207 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-09 22:53:59,208 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-09 22:53:59,208 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-09 22:53:59,208 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-09 22:53:59,208 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-09 22:53:59,210 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-09 22:53:59,210 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-09 22:53:59,216 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-09 22:53:59,216 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 [2018-11-09 22:53:59,216 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-09 22:53:59,217 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-09 22:53:59,217 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-09 22:53:59,217 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-09 22:53:59,217 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-09 22:53:59,217 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-09 22:53:59,218 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-09 22:53:59,219 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-09 22:53:59,219 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 [2018-11-09 22:53:59,220 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-09 22:53:59,220 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-09 22:53:59,220 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-09 22:53:59,220 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-09 22:53:59,220 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-09 22:53:59,221 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-09 22:53:59,221 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-09 22:53:59,222 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-09 22:53:59,222 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 [2018-11-09 22:53:59,223 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-09 22:53:59,223 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-09 22:53:59,223 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-09 22:53:59,223 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-09 22:53:59,223 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-09 22:53:59,224 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-09 22:53:59,224 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-09 22:53:59,229 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-09 22:53:59,235 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-09 22:53:59,235 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-09 22:53:59,237 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-09 22:53:59,237 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-09 22:53:59,237 INFO L517 LassoAnalysis]: Proved termination. [2018-11-09 22:53:59,237 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~n~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2018-11-09 22:53:59,238 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-09 22:53:59,280 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-09 22:53:59,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-09 22:53:59,290 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-09 22:53:59,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-09 22:53:59,299 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-09 22:53:59,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-09 22:53:59,309 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 [2018-11-09 22:53:59,310 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states. Second operand 3 states. [2018-11-09 22:53:59,342 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states.. Second operand 3 states. Result 33 states and 42 transitions. Complement of second has 5 states. [2018-11-09 22:53:59,342 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-09 22:53:59,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-09 22:53:59,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 28 transitions. [2018-11-09 22:53:59,345 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 28 transitions. Stem has 2 letters. Loop has 2 letters. [2018-11-09 22:53:59,346 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-09 22:53:59,346 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 28 transitions. Stem has 4 letters. Loop has 2 letters. [2018-11-09 22:53:59,346 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-09 22:53:59,346 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 28 transitions. Stem has 2 letters. Loop has 4 letters. [2018-11-09 22:53:59,346 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-09 22:53:59,347 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 42 transitions. [2018-11-09 22:53:59,348 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-09 22:53:59,351 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 11 states and 13 transitions. [2018-11-09 22:53:59,352 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2018-11-09 22:53:59,352 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2018-11-09 22:53:59,352 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 13 transitions. [2018-11-09 22:53:59,352 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-09 22:53:59,352 INFO L705 BuchiCegarLoop]: Abstraction has 11 states and 13 transitions. [2018-11-09 22:53:59,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 13 transitions. [2018-11-09 22:53:59,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-11-09 22:53:59,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-11-09 22:53:59,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2018-11-09 22:53:59,368 INFO L728 BuchiCegarLoop]: Abstraction has 11 states and 13 transitions. [2018-11-09 22:53:59,368 INFO L608 BuchiCegarLoop]: Abstraction has 11 states and 13 transitions. [2018-11-09 22:53:59,369 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-09 22:53:59,369 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 13 transitions. [2018-11-09 22:53:59,369 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-09 22:53:59,369 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-09 22:53:59,369 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-09 22:53:59,370 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2018-11-09 22:53:59,370 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-09 22:53:59,370 INFO L793 eck$LassoCheckResult]: Stem: 83#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 81#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet1, main_#t~post2, main_#t~post3, main_#t~post4, main_#t~post5, main_~n~0, main_~i~0, main_~k~0, main_~j~0;havoc main_~n~0;main_~i~0 := 0;main_~k~0 := 0;main_~n~0 := main_#t~nondet1;havoc main_#t~nondet1; 82#L15-3 assume true; 88#L15-1 assume !(main_~i~0 < main_~n~0); 84#L15-4 main_~j~0 := 0; 85#L20-3 [2018-11-09 22:53:59,370 INFO L795 eck$LassoCheckResult]: Loop: 85#L20-3 assume true; 86#L20-1 assume !!(main_~j~0 < main_~n~0);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond := (if main_~k~0 > 0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 91#L4 assume !(__VERIFIER_assert_~cond == 0); 90#L4-2 assume { :end_inline___VERIFIER_assert } true;main_#t~post4 := main_~j~0;main_~j~0 := main_#t~post4 + 1;havoc main_#t~post4;main_#t~post5 := main_~k~0;main_~k~0 := main_#t~post5 - 1;havoc main_#t~post5; 85#L20-3 [2018-11-09 22:53:59,370 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-09 22:53:59,370 INFO L82 PathProgramCache]: Analyzing trace with hash 28694825, now seen corresponding path program 1 times [2018-11-09 22:53:59,370 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-09 22:53:59,370 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-09 22:53:59,371 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 22:53:59,371 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-09 22:53:59,371 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 22:53:59,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-09 22:53:59,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-09 22:53:59,375 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-09 22:53:59,375 INFO L82 PathProgramCache]: Analyzing trace with hash 1545386, now seen corresponding path program 1 times [2018-11-09 22:53:59,375 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-09 22:53:59,376 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-09 22:53:59,376 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 22:53:59,376 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-09 22:53:59,376 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 22:53:59,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-09 22:53:59,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-09 22:53:59,385 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-09 22:53:59,385 INFO L82 PathProgramCache]: Analyzing trace with hash 325884370, now seen corresponding path program 1 times [2018-11-09 22:53:59,385 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-09 22:53:59,386 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-09 22:53:59,386 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 22:53:59,386 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-09 22:53:59,386 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 22:53:59,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-09 22:53:59,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-09 22:53:59,422 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-09 22:53:59,422 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-09 22:53:59,451 INFO L214 LassoAnalysis]: Preferences: [2018-11-09 22:53:59,451 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-09 22:53:59,451 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-09 22:53:59,451 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-09 22:53:59,451 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-09 22:53:59,451 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-09 22:53:59,451 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-09 22:53:59,452 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-09 22:53:59,452 INFO L131 ssoRankerPreferences]: Filename of dumped script: up_true-unreach-call_true-termination.i_Iteration2_Loop [2018-11-09 22:53:59,452 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-09 22:53:59,452 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-09 22:53:59,453 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-09 22:53:59,459 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-09 22:53:59,464 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-09 22:53:59,465 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-09 22:53:59,537 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-09 22:53:59,537 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_979d343e-9bd8-471a-b4dc-8265cf3cc720/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 [2018-11-09 22:53:59,539 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-09 22:53:59,539 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-09 22:53:59,551 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-09 22:53:59,551 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post5=0} Honda state: {ULTIMATE.start_main_#t~post5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_979d343e-9bd8-471a-b4dc-8265cf3cc720/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 [2018-11-09 22:53:59,571 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-09 22:53:59,571 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_979d343e-9bd8-471a-b4dc-8265cf3cc720/bin-2019/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-09 22:53:59,588 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-09 22:53:59,589 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-09 22:53:59,739 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-09 22:53:59,740 INFO L214 LassoAnalysis]: Preferences: [2018-11-09 22:53:59,740 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-09 22:53:59,740 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-09 22:53:59,740 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-09 22:53:59,740 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-09 22:53:59,740 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-09 22:53:59,740 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-09 22:53:59,740 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-09 22:53:59,740 INFO L131 ssoRankerPreferences]: Filename of dumped script: up_true-unreach-call_true-termination.i_Iteration2_Loop [2018-11-09 22:53:59,740 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-09 22:53:59,740 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-09 22:53:59,741 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-09 22:53:59,742 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-09 22:53:59,746 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-09 22:53:59,763 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-09 22:53:59,847 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-09 22:53:59,848 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-09 22:53:59,848 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 [2018-11-09 22:53:59,849 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-09 22:53:59,849 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-09 22:53:59,849 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-09 22:53:59,849 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-09 22:53:59,849 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-09 22:53:59,850 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-09 22:53:59,850 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-09 22:53:59,851 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-09 22:53:59,851 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 [2018-11-09 22:53:59,852 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-09 22:53:59,852 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-09 22:53:59,852 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-09 22:53:59,852 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-09 22:53:59,852 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-09 22:53:59,853 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-09 22:53:59,853 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-09 22:53:59,857 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-09 22:53:59,859 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-09 22:53:59,860 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-09 22:53:59,860 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-09 22:53:59,860 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-09 22:53:59,860 INFO L517 LassoAnalysis]: Proved termination. [2018-11-09 22:53:59,860 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~j~0) = 1*ULTIMATE.start_main_~n~0 - 1*ULTIMATE.start_main_~j~0 Supporting invariants [] [2018-11-09 22:53:59,861 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-09 22:53:59,874 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-09 22:53:59,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-09 22:53:59,878 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-09 22:53:59,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-09 22:53:59,883 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-09 22:53:59,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-09 22:53:59,897 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 [2018-11-09 22:53:59,897 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 13 transitions. cyclomatic complexity: 4 Second operand 4 states. [2018-11-09 22:53:59,911 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 13 transitions. cyclomatic complexity: 4. Second operand 4 states. Result 15 states and 18 transitions. Complement of second has 6 states. [2018-11-09 22:53:59,911 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-09 22:53:59,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-09 22:53:59,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2018-11-09 22:53:59,912 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 5 letters. Loop has 4 letters. [2018-11-09 22:53:59,912 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-09 22:53:59,912 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 9 letters. Loop has 4 letters. [2018-11-09 22:53:59,912 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-09 22:53:59,912 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 5 letters. Loop has 8 letters. [2018-11-09 22:53:59,912 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-09 22:53:59,913 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 18 transitions. [2018-11-09 22:53:59,913 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-09 22:53:59,913 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 0 states and 0 transitions. [2018-11-09 22:53:59,913 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-09 22:53:59,914 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-09 22:53:59,914 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-09 22:53:59,914 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-09 22:53:59,914 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-09 22:53:59,914 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-09 22:53:59,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-09 22:53:59,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-09 22:53:59,917 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 4 states. [2018-11-09 22:53:59,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-09 22:53:59,919 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2018-11-09 22:53:59,920 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-09 22:53:59,920 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2018-11-09 22:53:59,920 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-09 22:53:59,920 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2018-11-09 22:53:59,920 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-09 22:53:59,920 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-09 22:53:59,920 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-09 22:53:59,921 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-09 22:53:59,921 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-09 22:53:59,921 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-09 22:53:59,921 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-09 22:53:59,921 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-09 22:53:59,921 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-09 22:53:59,921 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-09 22:53:59,921 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-09 22:53:59,926 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 09.11 10:53:59 BoogieIcfgContainer [2018-11-09 22:53:59,926 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-09 22:53:59,927 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-09 22:53:59,927 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-09 22:53:59,927 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-09 22:53:59,927 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:53:58" (3/4) ... [2018-11-09 22:53:59,930 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-09 22:53:59,930 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-09 22:53:59,931 INFO L168 Benchmark]: Toolchain (without parser) took 1706.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 960.3 MB in the beginning and 976.8 MB in the end (delta: -16.5 MB). Peak memory consumption was 111.5 MB. Max. memory is 11.5 GB. [2018-11-09 22:53:59,932 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-09 22:53:59,933 INFO L168 Benchmark]: CACSL2BoogieTranslator took 144.18 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 948.4 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 11.5 GB. [2018-11-09 22:53:59,933 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.44 ms. Allocated memory is still 1.0 GB. Free memory is still 948.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-09 22:53:59,934 INFO L168 Benchmark]: Boogie Preprocessor took 10.62 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-09 22:53:59,934 INFO L168 Benchmark]: RCFGBuilder took 163.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -172.6 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. [2018-11-09 22:53:59,935 INFO L168 Benchmark]: BuchiAutomizer took 1361.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 979.5 MB in the end (delta: 138.9 MB). Peak memory consumption was 138.9 MB. Max. memory is 11.5 GB. [2018-11-09 22:53:59,935 INFO L168 Benchmark]: Witness Printer took 3.66 ms. Allocated memory is still 1.2 GB. Free memory was 979.5 MB in the beginning and 976.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-09 22:53:59,938 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 144.18 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 948.4 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.44 ms. Allocated memory is still 1.0 GB. Free memory is still 948.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.62 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 163.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -172.6 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1361.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 979.5 MB in the end (delta: 138.9 MB). Peak memory consumption was 138.9 MB. Max. memory is 11.5 GB. * Witness Printer took 3.66 ms. Allocated memory is still 1.2 GB. Free memory was 979.5 MB in the beginning and 976.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. 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 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function n + -1 * i and consists of 4 locations. One deterministic module has affine ranking function n + -1 * j and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.3s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 11 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 18 SDtfs, 19 SDslu, 11 SDs, 0 SdLazy, 10 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital22 mio100 ax100 hnf100 lsp69 ukn100 mio100 lsp100 div100 bol100 ite118 ukn100 eq166 hnf92 smp77 dnf98 smp100 tf110 neg98 sie113 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 9ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...