./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-cousot9_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_01ba6b86-42f0-4609-87cd-83003a6a4f53/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_01ba6b86-42f0-4609-87cd-83003a6a4f53/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_01ba6b86-42f0-4609-87cd-83003a6a4f53/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_01ba6b86-42f0-4609-87cd-83003a6a4f53/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-cousot9_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_01ba6b86-42f0-4609-87cd-83003a6a4f53/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_01ba6b86-42f0-4609-87cd-83003a6a4f53/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 0a8f096dedbbe798ef2fe808d4231fc7a503c17f ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 12:37:35,844 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 12:37:35,845 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 12:37:35,854 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 12:37:35,854 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 12:37:35,855 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 12:37:35,856 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 12:37:35,857 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 12:37:35,858 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 12:37:35,859 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 12:37:35,860 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 12:37:35,860 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 12:37:35,861 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 12:37:35,861 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 12:37:35,862 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 12:37:35,863 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 12:37:35,863 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 12:37:35,865 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 12:37:35,866 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 12:37:35,867 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 12:37:35,868 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 12:37:35,869 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 12:37:35,871 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 12:37:35,871 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 12:37:35,871 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 12:37:35,872 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 12:37:35,872 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 12:37:35,873 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 12:37:35,874 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 12:37:35,874 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 12:37:35,875 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 12:37:35,875 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 12:37:35,875 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 12:37:35,875 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 12:37:35,876 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 12:37:35,876 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 12:37:35,877 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_01ba6b86-42f0-4609-87cd-83003a6a4f53/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-18 12:37:35,887 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 12:37:35,887 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 12:37:35,888 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 12:37:35,888 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 12:37:35,888 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 12:37:35,889 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-18 12:37:35,889 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-18 12:37:35,889 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-18 12:37:35,889 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-18 12:37:35,889 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-18 12:37:35,889 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-18 12:37:35,890 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 12:37:35,890 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 12:37:35,890 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 12:37:35,890 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 12:37:35,890 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-18 12:37:35,890 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-18 12:37:35,890 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-18 12:37:35,890 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 12:37:35,891 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-18 12:37:35,891 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 12:37:35,891 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-18 12:37:35,891 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 12:37:35,891 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 12:37:35,891 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-18 12:37:35,891 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 12:37:35,891 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 12:37:35,892 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-18 12:37:35,892 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-18 12:37:35,892 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_01ba6b86-42f0-4609-87cd-83003a6a4f53/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 -> 0a8f096dedbbe798ef2fe808d4231fc7a503c17f [2018-11-18 12:37:35,914 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 12:37:35,922 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 12:37:35,925 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 12:37:35,926 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 12:37:35,926 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 12:37:35,927 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_01ba6b86-42f0-4609-87cd-83003a6a4f53/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-cousot9_true-termination_true-no-overflow.c [2018-11-18 12:37:35,963 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_01ba6b86-42f0-4609-87cd-83003a6a4f53/bin-2019/uautomizer/data/7fa4a7c99/b3a5c0f70e21473891537e99d684245d/FLAG3dfd96dba [2018-11-18 12:37:36,358 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 12:37:36,358 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_01ba6b86-42f0-4609-87cd-83003a6a4f53/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-cousot9_true-termination_true-no-overflow.c [2018-11-18 12:37:36,362 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_01ba6b86-42f0-4609-87cd-83003a6a4f53/bin-2019/uautomizer/data/7fa4a7c99/b3a5c0f70e21473891537e99d684245d/FLAG3dfd96dba [2018-11-18 12:37:36,371 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_01ba6b86-42f0-4609-87cd-83003a6a4f53/bin-2019/uautomizer/data/7fa4a7c99/b3a5c0f70e21473891537e99d684245d [2018-11-18 12:37:36,373 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 12:37:36,374 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 12:37:36,376 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 12:37:36,376 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 12:37:36,378 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 12:37:36,379 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:37:36" (1/1) ... [2018-11-18 12:37:36,380 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@178c31c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:37:36, skipping insertion in model container [2018-11-18 12:37:36,380 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:37:36" (1/1) ... [2018-11-18 12:37:36,387 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 12:37:36,397 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 12:37:36,498 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:37:36,500 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 12:37:36,510 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:37:36,520 INFO L195 MainTranslator]: Completed translation [2018-11-18 12:37:36,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:37:36 WrapperNode [2018-11-18 12:37:36,520 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 12:37:36,521 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 12:37:36,521 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 12:37:36,521 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 12:37:36,526 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:37:36" (1/1) ... [2018-11-18 12:37:36,530 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:37:36" (1/1) ... [2018-11-18 12:37:36,541 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 12:37:36,542 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 12:37:36,542 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 12:37:36,542 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 12:37:36,547 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:37:36" (1/1) ... [2018-11-18 12:37:36,548 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:37:36" (1/1) ... [2018-11-18 12:37:36,548 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:37:36" (1/1) ... [2018-11-18 12:37:36,548 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:37:36" (1/1) ... [2018-11-18 12:37:36,549 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:37:36" (1/1) ... [2018-11-18 12:37:36,552 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:37:36" (1/1) ... [2018-11-18 12:37:36,552 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:37:36" (1/1) ... [2018-11-18 12:37:36,553 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 12:37:36,554 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 12:37:36,554 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 12:37:36,554 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 12:37:36,555 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:37:36" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_01ba6b86-42f0-4609-87cd-83003a6a4f53/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 12:37:36,633 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 12:37:36,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 12:37:36,720 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 12:37:36,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:37:36 BoogieIcfgContainer [2018-11-18 12:37:36,721 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 12:37:36,721 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-18 12:37:36,722 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-18 12:37:36,724 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-18 12:37:36,724 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 12:37:36,725 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 12:37:36" (1/3) ... [2018-11-18 12:37:36,725 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3e99928c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 12:37:36, skipping insertion in model container [2018-11-18 12:37:36,725 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 12:37:36,725 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:37:36" (2/3) ... [2018-11-18 12:37:36,726 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3e99928c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 12:37:36, skipping insertion in model container [2018-11-18 12:37:36,726 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 12:37:36,726 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:37:36" (3/3) ... [2018-11-18 12:37:36,727 INFO L375 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-cousot9_true-termination_true-no-overflow.c [2018-11-18 12:37:36,762 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 12:37:36,763 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-18 12:37:36,763 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-18 12:37:36,763 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-18 12:37:36,763 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 12:37:36,763 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 12:37:36,763 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-18 12:37:36,763 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 12:37:36,763 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-18 12:37:36,773 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states. [2018-11-18 12:37:36,788 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-18 12:37:36,788 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 12:37:36,788 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 12:37:36,792 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-18 12:37:36,792 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-18 12:37:36,792 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-18 12:37:36,793 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states. [2018-11-18 12:37:36,793 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-18 12:37:36,793 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 12:37:36,793 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 12:37:36,794 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-18 12:37:36,794 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-18 12:37:36,799 INFO L794 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 3#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0, main_~N~0;havoc main_~i~0;havoc main_~j~0;havoc main_~N~0;main_~j~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~N~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~i~0 := main_~N~0; 7#L19-2true [2018-11-18 12:37:36,799 INFO L796 eck$LassoCheckResult]: Loop: 7#L19-2true assume true; 8#L18-1true assume !!(main_~i~0 > 0); 10#L19true assume !(main_~j~0 > 0);main_~j~0 := main_~N~0;main_~i~0 := main_~i~0 - 1; 7#L19-2true [2018-11-18 12:37:36,802 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:37:36,803 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2018-11-18 12:37:36,804 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:37:36,804 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:37:36,838 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:37:36,838 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:37:36,838 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:37:36,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:37:36,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:37:36,863 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:37:36,863 INFO L82 PathProgramCache]: Analyzing trace with hash 35946, now seen corresponding path program 1 times [2018-11-18 12:37:36,863 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:37:36,863 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:37:36,865 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:37:36,865 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:37:36,865 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:37:36,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:37:36,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:37:36,874 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:37:36,874 INFO L82 PathProgramCache]: Analyzing trace with hash 28694888, now seen corresponding path program 1 times [2018-11-18 12:37:36,875 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:37:36,875 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:37:36,876 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:37:36,876 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:37:36,876 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:37:36,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:37:36,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:37:36,952 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 12:37:36,953 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 12:37:36,953 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 12:37:36,953 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 12:37:36,953 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 12:37:36,953 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 12:37:36,953 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 12:37:36,954 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 12:37:36,954 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-cousot9_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-18 12:37:36,954 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 12:37:36,954 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 12:37:36,973 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 12:37:36,991 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 12:37:37,000 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 12:37:37,003 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 12:37:37,089 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 12:37:37,090 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_01ba6b86-42f0-4609-87cd-83003a6a4f53/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 12:37:37,107 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 12:37:37,107 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 12:37:37,114 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 12:37:37,115 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~j~0=-4, ULTIMATE.start_main_~N~0=-4} Honda state: {ULTIMATE.start_main_~j~0=-4, ULTIMATE.start_main_~N~0=-4} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_01ba6b86-42f0-4609-87cd-83003a6a4f53/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 12:37:37,138 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 12:37:37,138 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 12:37:37,153 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 12:37:37,153 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_01ba6b86-42f0-4609-87cd-83003a6a4f53/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 12:37:37,156 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 12:37:37,156 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 12:37:37,171 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 12:37:37,171 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_01ba6b86-42f0-4609-87cd-83003a6a4f53/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 12:37:37,174 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 12:37:37,174 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_01ba6b86-42f0-4609-87cd-83003a6a4f53/bin-2019/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 12:37:37,191 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 12:37:37,191 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 12:37:37,208 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-18 12:37:37,209 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 12:37:37,209 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 12:37:37,209 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 12:37:37,209 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 12:37:37,209 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 12:37:37,209 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 12:37:37,209 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 12:37:37,209 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 12:37:37,210 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-cousot9_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-18 12:37:37,210 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 12:37:37,210 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 12:37:37,211 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 12:37:37,216 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 12:37:37,218 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 12:37:37,223 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 12:37:37,276 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 12:37:37,280 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 12:37:37,281 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 12:37:37,282 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 12:37:37,282 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 12:37:37,284 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 12:37:37,284 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 12:37:37,284 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 12:37:37,285 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 12:37:37,286 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 12:37:37,289 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 12:37:37,289 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 12:37:37,290 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 12:37:37,290 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 12:37:37,290 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 12:37:37,290 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 12:37:37,293 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 12:37:37,293 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 12:37:37,298 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 12:37:37,299 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 12:37:37,299 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 12:37:37,299 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 12:37:37,300 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 12:37:37,300 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 12:37:37,302 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 12:37:37,302 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 12:37:37,309 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 12:37:37,310 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 12:37:37,311 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 12:37:37,311 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 12:37:37,311 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 12:37:37,311 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 12:37:37,311 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 12:37:37,312 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 12:37:37,312 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 12:37:37,317 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 12:37:37,319 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-18 12:37:37,319 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-18 12:37:37,321 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 12:37:37,321 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-18 12:37:37,321 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 12:37:37,322 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2018-11-18 12:37:37,324 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-18 12:37:37,355 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:37:37,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:37:37,364 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:37:37,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:37:37,376 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:37:37,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:37:37,406 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-18 12:37:37,407 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states. Second operand 4 states. [2018-11-18 12:37:37,455 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states.. Second operand 4 states. Result 24 states and 30 transitions. Complement of second has 7 states. [2018-11-18 12:37:37,455 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-18 12:37:37,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 12:37:37,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 18 transitions. [2018-11-18 12:37:37,458 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 2 letters. Loop has 3 letters. [2018-11-18 12:37:37,459 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 12:37:37,459 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 5 letters. Loop has 3 letters. [2018-11-18 12:37:37,460 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 12:37:37,460 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 2 letters. Loop has 6 letters. [2018-11-18 12:37:37,460 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 12:37:37,461 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 30 transitions. [2018-11-18 12:37:37,461 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-18 12:37:37,464 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 12 states and 15 transitions. [2018-11-18 12:37:37,464 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2018-11-18 12:37:37,465 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2018-11-18 12:37:37,465 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 15 transitions. [2018-11-18 12:37:37,465 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-18 12:37:37,465 INFO L705 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2018-11-18 12:37:37,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 15 transitions. [2018-11-18 12:37:37,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 10. [2018-11-18 12:37:37,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2018-11-18 12:37:37,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2018-11-18 12:37:37,482 INFO L728 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2018-11-18 12:37:37,482 INFO L608 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2018-11-18 12:37:37,482 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-18 12:37:37,482 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 13 transitions. [2018-11-18 12:37:37,483 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-18 12:37:37,483 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 12:37:37,483 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 12:37:37,483 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-11-18 12:37:37,483 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-18 12:37:37,484 INFO L794 eck$LassoCheckResult]: Stem: 77#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 75#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0, main_~N~0;havoc main_~i~0;havoc main_~j~0;havoc main_~N~0;main_~j~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~N~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~i~0 := main_~N~0; 76#L19-2 assume true; 79#L18-1 [2018-11-18 12:37:37,484 INFO L796 eck$LassoCheckResult]: Loop: 79#L18-1 assume !!(main_~i~0 > 0); 82#L19 assume main_~j~0 > 0;main_~j~0 := main_~j~0 - 1; 78#L19-2 assume true; 79#L18-1 [2018-11-18 12:37:37,484 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:37:37,484 INFO L82 PathProgramCache]: Analyzing trace with hash 29859, now seen corresponding path program 1 times [2018-11-18 12:37:37,484 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:37:37,484 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:37:37,485 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:37:37,485 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:37:37,485 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:37:37,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:37:37,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:37:37,488 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:37:37,488 INFO L82 PathProgramCache]: Analyzing trace with hash 41794, now seen corresponding path program 1 times [2018-11-18 12:37:37,488 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:37:37,489 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:37:37,490 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:37:37,490 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:37:37,490 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:37:37,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:37:37,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:37:37,494 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:37:37,494 INFO L82 PathProgramCache]: Analyzing trace with hash 889541472, now seen corresponding path program 1 times [2018-11-18 12:37:37,494 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:37:37,494 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:37:37,495 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:37:37,495 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:37:37,495 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:37:37,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:37:37,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:37:37,515 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 12:37:37,515 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 12:37:37,515 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 12:37:37,515 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 12:37:37,515 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 12:37:37,515 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 12:37:37,515 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 12:37:37,515 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 12:37:37,515 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-cousot9_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-18 12:37:37,516 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 12:37:37,516 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 12:37:37,517 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 12:37:37,520 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 12:37:37,522 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 12:37:37,527 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 12:37:37,576 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 12:37:37,576 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_01ba6b86-42f0-4609-87cd-83003a6a4f53/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 [2018-11-18 12:37:37,578 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 12:37:37,578 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 12:37:37,595 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 12:37:37,595 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_01ba6b86-42f0-4609-87cd-83003a6a4f53/bin-2019/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 12:37:37,598 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 12:37:37,598 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 12:37:37,617 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 12:37:37,617 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_01ba6b86-42f0-4609-87cd-83003a6a4f53/bin-2019/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 12:37:37,620 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 12:37:37,620 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_01ba6b86-42f0-4609-87cd-83003a6a4f53/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 [2018-11-18 12:37:37,641 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 12:37:37,641 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 12:37:37,674 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-18 12:37:37,676 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 12:37:37,676 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 12:37:37,676 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 12:37:37,676 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 12:37:37,676 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 12:37:37,677 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 12:37:37,677 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 12:37:37,677 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 12:37:37,677 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-cousot9_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-18 12:37:37,677 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 12:37:37,677 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 12:37:37,679 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 12:37:37,681 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 12:37:37,687 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 12:37:37,689 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 12:37:37,726 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 12:37:37,726 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 12:37:37,727 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 12:37:37,727 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 12:37:37,727 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 12:37:37,728 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 12:37:37,728 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 12:37:37,729 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 12:37:37,729 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 12:37:37,733 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 12:37:37,733 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 12:37:37,734 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 12:37:37,734 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 12:37:37,734 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 12:37:37,734 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 12:37:37,734 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 12:37:37,735 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 12:37:37,735 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 12:37:37,740 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 12:37:37,742 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-18 12:37:37,742 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-18 12:37:37,742 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 12:37:37,742 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-18 12:37:37,743 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 12:37:37,743 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0) = 1*ULTIMATE.start_main_~j~0 Supporting invariants [] [2018-11-18 12:37:37,744 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-18 12:37:37,771 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:37:37,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:37:37,774 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:37:37,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:37:37,778 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:37:37,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:37:37,805 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-18 12:37:37,805 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5 Second operand 4 states. [2018-11-18 12:37:37,820 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5. Second operand 4 states. Result 23 states and 28 transitions. Complement of second has 5 states. [2018-11-18 12:37:37,821 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-18 12:37:37,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 12:37:37,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2018-11-18 12:37:37,822 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 3 letters. Loop has 3 letters. [2018-11-18 12:37:37,822 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 12:37:37,822 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 6 letters. Loop has 3 letters. [2018-11-18 12:37:37,822 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 12:37:37,822 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 3 letters. Loop has 6 letters. [2018-11-18 12:37:37,823 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 12:37:37,823 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 28 transitions. [2018-11-18 12:37:37,824 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-18 12:37:37,824 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 16 states and 20 transitions. [2018-11-18 12:37:37,824 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2018-11-18 12:37:37,824 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2018-11-18 12:37:37,824 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 20 transitions. [2018-11-18 12:37:37,825 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-18 12:37:37,825 INFO L705 BuchiCegarLoop]: Abstraction has 16 states and 20 transitions. [2018-11-18 12:37:37,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 20 transitions. [2018-11-18 12:37:37,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2018-11-18 12:37:37,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-11-18 12:37:37,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 20 transitions. [2018-11-18 12:37:37,826 INFO L728 BuchiCegarLoop]: Abstraction has 16 states and 20 transitions. [2018-11-18 12:37:37,827 INFO L608 BuchiCegarLoop]: Abstraction has 16 states and 20 transitions. [2018-11-18 12:37:37,827 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-18 12:37:37,827 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 20 transitions. [2018-11-18 12:37:37,828 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-18 12:37:37,828 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 12:37:37,828 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 12:37:37,828 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2018-11-18 12:37:37,828 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-18 12:37:37,828 INFO L794 eck$LassoCheckResult]: Stem: 149#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 147#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0, main_~N~0;havoc main_~i~0;havoc main_~j~0;havoc main_~N~0;main_~j~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~N~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~i~0 := main_~N~0; 148#L19-2 assume true; 150#L18-1 assume !!(main_~i~0 > 0); 156#L19 assume !(main_~j~0 > 0);main_~j~0 := main_~N~0;main_~i~0 := main_~i~0 - 1; 159#L19-2 assume true; 154#L18-1 [2018-11-18 12:37:37,829 INFO L796 eck$LassoCheckResult]: Loop: 154#L18-1 assume !!(main_~i~0 > 0); 155#L19 assume main_~j~0 > 0;main_~j~0 := main_~j~0 - 1; 157#L19-2 assume true; 154#L18-1 [2018-11-18 12:37:37,829 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:37:37,829 INFO L82 PathProgramCache]: Analyzing trace with hash 889541534, now seen corresponding path program 2 times [2018-11-18 12:37:37,829 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:37:37,829 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:37:37,830 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:37:37,830 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:37:37,831 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:37:37,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:37:37,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:37:37,836 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:37:37,836 INFO L82 PathProgramCache]: Analyzing trace with hash 41794, now seen corresponding path program 2 times [2018-11-18 12:37:37,836 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:37:37,837 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:37:37,838 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:37:37,838 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 12:37:37,838 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:37:37,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:37:37,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:37:37,842 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:37:37,842 INFO L82 PathProgramCache]: Analyzing trace with hash 383635077, now seen corresponding path program 1 times [2018-11-18 12:37:37,842 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:37:37,842 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:37:37,844 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:37:37,844 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 12:37:37,845 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:37:37,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:37:37,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:37:37,907 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 12:37:37,907 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 12:37:37,907 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 12:37:37,907 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 12:37:37,907 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 12:37:37,907 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 12:37:37,907 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 12:37:37,908 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 12:37:37,908 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-cousot9_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-18 12:37:37,908 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 12:37:37,908 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 12:37:37,909 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 12:37:37,922 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 12:37:37,927 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 12:37:37,930 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 12:37:38,003 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 12:37:38,003 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_01ba6b86-42f0-4609-87cd-83003a6a4f53/bin-2019/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 12:37:38,007 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 12:37:38,007 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 12:37:38,026 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 12:37:38,026 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_01ba6b86-42f0-4609-87cd-83003a6a4f53/bin-2019/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 12:37:38,030 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 12:37:38,030 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 12:37:38,048 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 12:37:38,048 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~i~0=1} Honda state: {ULTIMATE.start_main_~i~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_01ba6b86-42f0-4609-87cd-83003a6a4f53/bin-2019/uautomizer/z3 Starting monitored process 13 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 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 12:37:38,051 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 12:37:38,051 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 12:37:38,066 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 12:37:38,066 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_5=0} Honda state: {v_rep~unnamed0~0~false_5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_01ba6b86-42f0-4609-87cd-83003a6a4f53/bin-2019/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 12:37:38,069 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 12:37:38,069 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_01ba6b86-42f0-4609-87cd-83003a6a4f53/bin-2019/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 12:37:38,087 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 12:37:38,087 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 12:37:38,104 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-18 12:37:38,105 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 12:37:38,105 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 12:37:38,105 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 12:37:38,105 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 12:37:38,105 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 12:37:38,105 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 12:37:38,105 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 12:37:38,105 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 12:37:38,105 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-cousot9_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-18 12:37:38,105 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 12:37:38,105 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 12:37:38,106 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 12:37:38,108 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 12:37:38,110 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 12:37:38,114 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 12:37:38,156 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 12:37:38,157 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 12:37:38,157 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 12:37:38,157 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 12:37:38,158 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 12:37:38,158 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 12:37:38,158 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 12:37:38,159 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 12:37:38,159 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 12:37:38,163 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 12:37:38,164 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 12:37:38,164 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 12:37:38,164 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 12:37:38,165 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 12:37:38,165 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 12:37:38,165 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 12:37:38,165 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 12:37:38,165 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 12:37:38,167 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 12:37:38,167 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 12:37:38,167 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 12:37:38,167 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 12:37:38,167 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 12:37:38,168 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 12:37:38,168 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 12:37:38,168 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 12:37:38,168 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 12:37:38,172 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 12:37:38,174 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-18 12:37:38,175 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-18 12:37:38,175 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 12:37:38,175 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-18 12:37:38,175 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 12:37:38,175 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0) = 1*ULTIMATE.start_main_~j~0 Supporting invariants [] [2018-11-18 12:37:38,176 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-18 12:37:38,188 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:37:38,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:37:38,192 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:37:38,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:37:38,195 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:37:38,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:37:38,204 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-18 12:37:38,205 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 20 transitions. cyclomatic complexity: 7 Second operand 4 states. [2018-11-18 12:37:38,209 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 20 transitions. cyclomatic complexity: 7. Second operand 4 states. Result 20 states and 26 transitions. Complement of second has 5 states. [2018-11-18 12:37:38,210 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-18 12:37:38,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 12:37:38,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2018-11-18 12:37:38,210 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 6 letters. Loop has 3 letters. [2018-11-18 12:37:38,210 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 12:37:38,211 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-18 12:37:38,221 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:37:38,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:37:38,226 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:37:38,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:37:38,229 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:37:38,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:37:38,236 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-18 12:37:38,236 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 20 transitions. cyclomatic complexity: 7 Second operand 4 states. [2018-11-18 12:37:38,248 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 20 transitions. cyclomatic complexity: 7. Second operand 4 states. Result 19 states and 25 transitions. Complement of second has 7 states. [2018-11-18 12:37:38,248 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 [2018-11-18 12:37:38,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 12:37:38,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions. [2018-11-18 12:37:38,249 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 6 letters. Loop has 3 letters. [2018-11-18 12:37:38,249 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 12:37:38,249 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-18 12:37:38,264 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:37:38,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:37:38,270 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:37:38,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:37:38,273 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:37:38,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:37:38,281 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-18 12:37:38,281 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 20 transitions. cyclomatic complexity: 7 Second operand 4 states. [2018-11-18 12:37:38,288 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 20 transitions. cyclomatic complexity: 7. Second operand 4 states. Result 27 states and 34 transitions. Complement of second has 6 states. [2018-11-18 12:37:38,289 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-18 12:37:38,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 12:37:38,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2018-11-18 12:37:38,289 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 6 letters. Loop has 3 letters. [2018-11-18 12:37:38,289 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 12:37:38,290 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 9 letters. Loop has 3 letters. [2018-11-18 12:37:38,290 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 12:37:38,290 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 6 letters. Loop has 6 letters. [2018-11-18 12:37:38,290 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 12:37:38,290 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 34 transitions. [2018-11-18 12:37:38,292 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-18 12:37:38,292 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 0 states and 0 transitions. [2018-11-18 12:37:38,292 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-18 12:37:38,292 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-18 12:37:38,292 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-18 12:37:38,292 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 12:37:38,292 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 12:37:38,292 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 12:37:38,293 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 12:37:38,293 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-18 12:37:38,293 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-18 12:37:38,293 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-18 12:37:38,293 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-18 12:37:38,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 12:37:38 BoogieIcfgContainer [2018-11-18 12:37:38,297 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-18 12:37:38,298 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 12:37:38,298 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 12:37:38,298 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 12:37:38,298 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:37:36" (3/4) ... [2018-11-18 12:37:38,301 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 12:37:38,301 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 12:37:38,301 INFO L168 Benchmark]: Toolchain (without parser) took 1928.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.0 MB). Free memory was 959.1 MB in the beginning and 923.6 MB in the end (delta: 35.5 MB). Peak memory consumption was 197.5 MB. Max. memory is 11.5 GB. [2018-11-18 12:37:38,302 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:37:38,303 INFO L168 Benchmark]: CACSL2BoogieTranslator took 144.32 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 12:37:38,303 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.72 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. [2018-11-18 12:37:38,303 INFO L168 Benchmark]: Boogie Preprocessor took 12.00 ms. Allocated memory is still 1.0 GB. Free memory is still 945.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:37:38,304 INFO L168 Benchmark]: RCFGBuilder took 167.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.0 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -200.0 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. [2018-11-18 12:37:38,304 INFO L168 Benchmark]: BuchiAutomizer took 1575.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 923.6 MB in the end (delta: 222.2 MB). Peak memory consumption was 222.2 MB. Max. memory is 11.5 GB. [2018-11-18 12:37:38,305 INFO L168 Benchmark]: Witness Printer took 3.22 ms. Allocated memory is still 1.2 GB. Free memory is still 923.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:37:38,307 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 144.32 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 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 20.72 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. * Boogie Preprocessor took 12.00 ms. Allocated memory is still 1.0 GB. Free memory is still 945.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 167.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.0 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -200.0 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1575.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 923.6 MB in the end (delta: 222.2 MB). Peak memory consumption was 222.2 MB. Max. memory is 11.5 GB. * Witness Printer took 3.22 ms. Allocated memory is still 1.2 GB. Free memory is still 923.6 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 3 terminating modules (0 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function i and consists of 5 locations. One deterministic module has affine ranking function j and consists of 3 locations. One nondeterministic module has affine ranking function j and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.5s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 1.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 16 states and ocurred in iteration 2. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 31 SDtfs, 28 SDslu, 17 SDs, 0 SdLazy, 23 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT3 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital14 mio100 ax185 hnf98 lsp38 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 8ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 8 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...