./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig1_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_83d1a531-80f0-4af7-b787-ba18e9a4e784/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_83d1a531-80f0-4af7-b787-ba18e9a4e784/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_83d1a531-80f0-4af7-b787-ba18e9a4e784/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_83d1a531-80f0-4af7-b787-ba18e9a4e784/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig1_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_83d1a531-80f0-4af7-b787-ba18e9a4e784/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_83d1a531-80f0-4af7-b787-ba18e9a4e784/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 64bit --witnessprinter.graph.data.programhash 0564e568992a96ba006237c1af458e049de52506 ............................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-02 12:41:13,822 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 12:41:13,823 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 12:41:13,832 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 12:41:13,832 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 12:41:13,833 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 12:41:13,834 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 12:41:13,835 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 12:41:13,836 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 12:41:13,837 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 12:41:13,838 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 12:41:13,838 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 12:41:13,838 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 12:41:13,839 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 12:41:13,840 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 12:41:13,841 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 12:41:13,841 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 12:41:13,843 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 12:41:13,844 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 12:41:13,846 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 12:41:13,846 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 12:41:13,847 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 12:41:13,849 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 12:41:13,849 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 12:41:13,849 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 12:41:13,850 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 12:41:13,851 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 12:41:13,851 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 12:41:13,852 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 12:41:13,852 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 12:41:13,853 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 12:41:13,853 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 12:41:13,853 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 12:41:13,853 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 12:41:13,854 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 12:41:13,854 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 12:41:13,855 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_83d1a531-80f0-4af7-b787-ba18e9a4e784/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-12-02 12:41:13,866 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 12:41:13,866 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 12:41:13,867 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-02 12:41:13,867 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-02 12:41:13,867 INFO L133 SettingsManager]: * Use SBE=true [2018-12-02 12:41:13,867 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-12-02 12:41:13,867 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-12-02 12:41:13,867 INFO L133 SettingsManager]: * Use old map elimination=false [2018-12-02 12:41:13,867 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-12-02 12:41:13,868 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-12-02 12:41:13,868 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-12-02 12:41:13,868 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 12:41:13,868 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-02 12:41:13,868 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 12:41:13,868 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 12:41:13,868 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-12-02 12:41:13,868 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-12-02 12:41:13,869 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-12-02 12:41:13,869 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 12:41:13,869 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-12-02 12:41:13,869 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 12:41:13,869 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-12-02 12:41:13,869 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 12:41:13,870 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 12:41:13,870 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-12-02 12:41:13,870 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 12:41:13,870 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-02 12:41:13,870 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-12-02 12:41:13,870 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-12-02 12:41:13,871 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_83d1a531-80f0-4af7-b787-ba18e9a4e784/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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0564e568992a96ba006237c1af458e049de52506 [2018-12-02 12:41:13,893 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 12:41:13,902 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 12:41:13,904 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 12:41:13,905 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 12:41:13,905 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 12:41:13,905 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_83d1a531-80f0-4af7-b787-ba18e9a4e784/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig1_true-termination_true-no-overflow.c [2018-12-02 12:41:13,939 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_83d1a531-80f0-4af7-b787-ba18e9a4e784/bin-2019/uautomizer/data/c7422afd6/983684a7cab94cf6b2c500fb698bb891/FLAG107c604fc [2018-12-02 12:41:14,314 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 12:41:14,314 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_83d1a531-80f0-4af7-b787-ba18e9a4e784/sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig1_true-termination_true-no-overflow.c [2018-12-02 12:41:14,318 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_83d1a531-80f0-4af7-b787-ba18e9a4e784/bin-2019/uautomizer/data/c7422afd6/983684a7cab94cf6b2c500fb698bb891/FLAG107c604fc [2018-12-02 12:41:14,326 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_83d1a531-80f0-4af7-b787-ba18e9a4e784/bin-2019/uautomizer/data/c7422afd6/983684a7cab94cf6b2c500fb698bb891 [2018-12-02 12:41:14,328 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 12:41:14,328 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 12:41:14,329 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 12:41:14,329 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 12:41:14,331 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 12:41:14,331 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:41:14" (1/1) ... [2018-12-02 12:41:14,333 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2817da2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:41:14, skipping insertion in model container [2018-12-02 12:41:14,333 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:41:14" (1/1) ... [2018-12-02 12:41:14,337 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 12:41:14,345 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 12:41:14,423 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 12:41:14,426 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 12:41:14,433 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 12:41:14,441 INFO L195 MainTranslator]: Completed translation [2018-12-02 12:41:14,441 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:41:14 WrapperNode [2018-12-02 12:41:14,441 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 12:41:14,441 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 12:41:14,442 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 12:41:14,442 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 12:41:14,446 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:41:14" (1/1) ... [2018-12-02 12:41:14,449 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:41:14" (1/1) ... [2018-12-02 12:41:14,459 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 12:41:14,459 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 12:41:14,459 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 12:41:14,459 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 12:41:14,465 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:41:14" (1/1) ... [2018-12-02 12:41:14,465 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:41:14" (1/1) ... [2018-12-02 12:41:14,465 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:41:14" (1/1) ... [2018-12-02 12:41:14,465 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:41:14" (1/1) ... [2018-12-02 12:41:14,466 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:41:14" (1/1) ... [2018-12-02 12:41:14,468 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:41:14" (1/1) ... [2018-12-02 12:41:14,469 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:41:14" (1/1) ... [2018-12-02 12:41:14,469 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 12:41:14,470 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 12:41:14,470 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 12:41:14,470 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 12:41:14,470 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:41:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_83d1a531-80f0-4af7-b787-ba18e9a4e784/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 [2018-12-02 12:41:14,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 12:41:14,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 12:41:14,601 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 12:41:14,601 INFO L280 CfgBuilder]: Removed 5 assue(true) statements. [2018-12-02 12:41:14,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:41:14 BoogieIcfgContainer [2018-12-02 12:41:14,601 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 12:41:14,602 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-12-02 12:41:14,602 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-12-02 12:41:14,604 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-12-02 12:41:14,604 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-02 12:41:14,604 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.12 12:41:14" (1/3) ... [2018-12-02 12:41:14,605 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@47742461 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.12 12:41:14, skipping insertion in model container [2018-12-02 12:41:14,605 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-02 12:41:14,605 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:41:14" (2/3) ... [2018-12-02 12:41:14,606 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@47742461 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.12 12:41:14, skipping insertion in model container [2018-12-02 12:41:14,606 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-02 12:41:14,606 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:41:14" (3/3) ... [2018-12-02 12:41:14,607 INFO L375 chiAutomizerObserver]: Analyzing ICFG HeizmannHoenickeLeikePodelski-ATVA2013-Fig1_true-termination_true-no-overflow.c [2018-12-02 12:41:14,641 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-02 12:41:14,641 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-12-02 12:41:14,641 INFO L375 BuchiCegarLoop]: Hoare is false [2018-12-02 12:41:14,641 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-12-02 12:41:14,641 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 12:41:14,642 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 12:41:14,642 INFO L379 BuchiCegarLoop]: Difference is false [2018-12-02 12:41:14,642 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 12:41:14,642 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-12-02 12:41:14,650 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2018-12-02 12:41:14,662 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-12-02 12:41:14,662 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-02 12:41:14,662 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-02 12:41:14,666 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-12-02 12:41:14,666 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-12-02 12:41:14,666 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-12-02 12:41:14,666 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2018-12-02 12:41:14,667 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-12-02 12:41:14,667 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-02 12:41:14,667 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-02 12:41:14,667 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-12-02 12:41:14,667 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-12-02 12:41:14,671 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := 23; 3#L17-2true [2018-12-02 12:41:14,672 INFO L796 eck$LassoCheckResult]: Loop: 3#L17-2true assume !!(main_~x~0 >= 0);main_~x~0 := main_~x~0 - main_~y~0;main_~y~0 := 1 + main_~y~0; 3#L17-2true [2018-12-02 12:41:14,675 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:41:14,675 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2018-12-02 12:41:14,676 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 12:41:14,677 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 12:41:14,709 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:41:14,709 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 12:41:14,709 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:41:14,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 12:41:14,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 12:41:14,734 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:41:14,734 INFO L82 PathProgramCache]: Analyzing trace with hash 41, now seen corresponding path program 1 times [2018-12-02 12:41:14,734 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 12:41:14,734 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 12:41:14,735 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:41:14,735 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 12:41:14,735 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:41:14,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 12:41:14,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 12:41:14,742 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:41:14,742 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2018-12-02 12:41:14,742 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 12:41:14,742 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 12:41:14,743 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:41:14,743 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 12:41:14,743 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:41:14,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 12:41:14,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 12:41:14,780 INFO L216 LassoAnalysis]: Preferences: [2018-12-02 12:41:14,780 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-02 12:41:14,781 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-02 12:41:14,781 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-02 12:41:14,781 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-02 12:41:14,781 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 12:41:14,781 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-02 12:41:14,781 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-02 12:41:14,781 INFO L131 ssoRankerPreferences]: Filename of dumped script: HeizmannHoenickeLeikePodelski-ATVA2013-Fig1_true-termination_true-no-overflow.c_Iteration1_Loop [2018-12-02 12:41:14,781 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-02 12:41:14,781 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-02 12:41:14,794 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 12:41:14,801 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 12:41:14,803 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 12:41:14,871 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-02 12:41:14,871 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_83d1a531-80f0-4af7-b787-ba18e9a4e784/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 [2018-12-02 12:41:14,875 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 12:41:14,875 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 12:41:14,893 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-02 12:41:14,893 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_83d1a531-80f0-4af7-b787-ba18e9a4e784/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 [2018-12-02 12:41:14,897 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 12:41:14,897 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 12:41:14,912 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-02 12:41:14,912 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_83d1a531-80f0-4af7-b787-ba18e9a4e784/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 [2018-12-02 12:41:14,915 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 12:41:14,915 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_83d1a531-80f0-4af7-b787-ba18e9a4e784/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 [2018-12-02 12:41:14,932 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-02 12:41:14,932 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 12:41:17,007 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-02 12:41:17,008 INFO L216 LassoAnalysis]: Preferences: [2018-12-02 12:41:17,008 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-02 12:41:17,008 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-02 12:41:17,008 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-02 12:41:17,008 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-02 12:41:17,008 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 12:41:17,008 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-02 12:41:17,008 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-02 12:41:17,008 INFO L131 ssoRankerPreferences]: Filename of dumped script: HeizmannHoenickeLeikePodelski-ATVA2013-Fig1_true-termination_true-no-overflow.c_Iteration1_Loop [2018-12-02 12:41:17,008 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-02 12:41:17,008 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-02 12:41:17,010 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 12:41:17,013 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 12:41:17,016 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 12:41:17,068 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-02 12:41:17,071 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-02 12:41:17,072 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 [2018-12-02 12:41:17,073 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 12:41:17,073 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 12:41:17,074 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 12:41:17,074 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 12:41:17,076 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-02 12:41:17,076 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-02 12:41:17,081 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 12:41:17,081 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 [2018-12-02 12:41:17,082 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 12:41:17,082 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 12:41:17,082 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 12:41:17,082 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 12:41:17,083 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-02 12:41:17,083 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-02 12:41:17,088 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 12:41:17,088 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 [2018-12-02 12:41:17,088 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 12:41:17,088 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 12:41:17,089 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 12:41:17,089 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 12:41:17,089 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 12:41:17,089 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 12:41:17,090 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 12:41:17,094 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 12:41:17,094 INFO L497 LassoAnalysis]: Using template '2-nested'. [2018-12-02 12:41:17,094 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 [2018-12-02 12:41:17,095 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 12:41:17,095 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 12:41:17,095 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 12:41:17,095 INFO L207 nArgumentSynthesizer]: 3 template conjuncts. [2018-12-02 12:41:17,096 INFO L402 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2018-12-02 12:41:17,097 INFO L403 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2018-12-02 12:41:17,099 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 12:41:17,099 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 [2018-12-02 12:41:17,100 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 12:41:17,100 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 12:41:17,100 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 12:41:17,100 INFO L207 nArgumentSynthesizer]: 3 template conjuncts. [2018-12-02 12:41:17,101 INFO L402 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2018-12-02 12:41:17,101 INFO L403 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2018-12-02 12:41:17,108 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 12:41:17,108 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 [2018-12-02 12:41:17,108 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 12:41:17,109 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 12:41:17,109 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 12:41:17,109 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 12:41:17,109 INFO L207 nArgumentSynthesizer]: 3 template conjuncts. [2018-12-02 12:41:17,109 INFO L402 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2018-12-02 12:41:17,109 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 12:41:17,115 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-02 12:41:17,119 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-02 12:41:17,119 INFO L444 ModelExtractionUtils]: 2 out of 7 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-12-02 12:41:17,120 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-02 12:41:17,120 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-02 12:41:17,120 INFO L518 LassoAnalysis]: Proved termination. [2018-12-02 12:41:17,121 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = -2*ULTIMATE.start_main_~y~0 + 1 f1 = 2*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] [2018-12-02 12:41:17,121 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-02 12:41:17,143 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:41:17,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 12:41:17,149 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 12:41:17,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 12:41:17,156 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 12:41:17,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 12:41:17,165 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 [2018-12-02 12:41:17,166 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states. Second operand 2 states. [2018-12-02 12:41:17,188 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states.. Second operand 2 states. Result 15 states and 18 transitions. Complement of second has 5 states. [2018-12-02 12:41:17,188 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 [2018-12-02 12:41:17,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-12-02 12:41:17,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2018-12-02 12:41:17,190 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 1 letters. Loop has 1 letters. [2018-12-02 12:41:17,191 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 12:41:17,191 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 1 letters. [2018-12-02 12:41:17,191 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 12:41:17,191 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 1 letters. Loop has 2 letters. [2018-12-02 12:41:17,191 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 12:41:17,192 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 18 transitions. [2018-12-02 12:41:17,193 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-02 12:41:17,194 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 0 states and 0 transitions. [2018-12-02 12:41:17,195 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-12-02 12:41:17,195 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-12-02 12:41:17,195 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-12-02 12:41:17,196 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-02 12:41:17,196 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 12:41:17,196 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 12:41:17,196 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 12:41:17,196 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-12-02 12:41:17,196 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-12-02 12:41:17,196 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-02 12:41:17,196 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-12-02 12:41:17,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 02.12 12:41:17 BoogieIcfgContainer [2018-12-02 12:41:17,200 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-12-02 12:41:17,200 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 12:41:17,200 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 12:41:17,200 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 12:41:17,201 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:41:14" (3/4) ... [2018-12-02 12:41:17,203 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-02 12:41:17,203 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 12:41:17,203 INFO L168 Benchmark]: Toolchain (without parser) took 2875.30 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 76.0 MB). Free memory was 962.4 MB in the beginning and 971.5 MB in the end (delta: -9.0 MB). Peak memory consumption was 67.0 MB. Max. memory is 11.5 GB. [2018-12-02 12:41:17,204 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 12:41:17,204 INFO L168 Benchmark]: CACSL2BoogieTranslator took 112.50 ms. Allocated memory is still 1.0 GB. Free memory was 962.4 MB in the beginning and 951.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-02 12:41:17,205 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.76 ms. Allocated memory is still 1.0 GB. Free memory is still 951.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 12:41:17,205 INFO L168 Benchmark]: Boogie Preprocessor took 10.20 ms. Allocated memory is still 1.0 GB. Free memory is still 951.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 12:41:17,205 INFO L168 Benchmark]: RCFGBuilder took 131.52 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 76.0 MB). Free memory was 951.7 MB in the beginning and 1.1 GB in the end (delta: -110.1 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. [2018-12-02 12:41:17,206 INFO L168 Benchmark]: BuchiAutomizer took 2598.31 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 971.5 MB in the end (delta: 90.3 MB). Peak memory consumption was 90.3 MB. Max. memory is 11.5 GB. [2018-12-02 12:41:17,206 INFO L168 Benchmark]: Witness Printer took 2.67 ms. Allocated memory is still 1.1 GB. Free memory is still 971.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 12:41:17,208 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 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 112.50 ms. Allocated memory is still 1.0 GB. Free memory was 962.4 MB in the beginning and 951.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 17.76 ms. Allocated memory is still 1.0 GB. Free memory is still 951.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.20 ms. Allocated memory is still 1.0 GB. Free memory is still 951.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 131.52 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 76.0 MB). Free memory was 951.7 MB in the beginning and 1.1 GB in the end (delta: -110.1 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2598.31 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 971.5 MB in the end (delta: 90.3 MB). Peak memory consumption was 90.3 MB. Max. memory is 11.5 GB. * Witness Printer took 2.67 ms. Allocated memory is still 1.1 GB. Free memory is still 971.5 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 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has 2-nested ranking function (if -2 * y + 1 > 0 then 1 else 0), (if -2 * y + 1 > 0 then -2 * y + 1 else 2 * x + 1) and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.5s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 2.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 4 SDtfs, 4 SDslu, 3 SDs, 0 SdLazy, 3 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital17 mio100 ax170 hnf93 lsp55 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq179 hnf92 smp100 dnf100 smp100 tf108 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 4ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 3 MotzkinApplications: 9 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 2.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...