./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-while2_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_5c2ab514-7dbb-4f82-9a5d-f11940115a3f/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_5c2ab514-7dbb-4f82-9a5d-f11940115a3f/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_5c2ab514-7dbb-4f82-9a5d-f11940115a3f/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_5c2ab514-7dbb-4f82-9a5d-f11940115a3f/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-while2_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_5c2ab514-7dbb-4f82-9a5d-f11940115a3f/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_5c2ab514-7dbb-4f82-9a5d-f11940115a3f/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 775ea6e0a1296fd7b29dfc5da5a4c77d3361f4a8 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-27 06:10:38,340 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 06:10:38,342 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 06:10:38,354 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 06:10:38,354 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 06:10:38,356 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 06:10:38,358 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 06:10:38,360 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 06:10:38,362 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 06:10:38,365 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 06:10:38,367 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 06:10:38,367 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 06:10:38,368 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 06:10:38,370 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 06:10:38,377 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 06:10:38,378 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 06:10:38,379 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 06:10:38,382 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 06:10:38,383 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 06:10:38,384 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 06:10:38,385 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 06:10:38,385 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 06:10:38,387 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 06:10:38,387 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 06:10:38,387 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 06:10:38,391 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 06:10:38,391 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 06:10:38,393 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 06:10:38,394 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 06:10:38,395 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 06:10:38,396 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 06:10:38,397 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 06:10:38,397 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 06:10:38,397 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 06:10:38,398 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 06:10:38,399 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 06:10:38,399 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_5c2ab514-7dbb-4f82-9a5d-f11940115a3f/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-10-27 06:10:38,418 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 06:10:38,419 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 06:10:38,420 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-27 06:10:38,420 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-27 06:10:38,421 INFO L133 SettingsManager]: * Use SBE=true [2018-10-27 06:10:38,421 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-10-27 06:10:38,421 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-10-27 06:10:38,421 INFO L133 SettingsManager]: * Use old map elimination=false [2018-10-27 06:10:38,422 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-10-27 06:10:38,422 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-10-27 06:10:38,422 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-10-27 06:10:38,422 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 06:10:38,422 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-10-27 06:10:38,422 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 06:10:38,422 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 06:10:38,423 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-10-27 06:10:38,423 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-10-27 06:10:38,423 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-10-27 06:10:38,423 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 06:10:38,423 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-10-27 06:10:38,423 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-10-27 06:10:38,423 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 06:10:38,423 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 06:10:38,424 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-10-27 06:10:38,424 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 06:10:38,424 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-27 06:10:38,424 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-10-27 06:10:38,425 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-27 06:10:38,425 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_5c2ab514-7dbb-4f82-9a5d-f11940115a3f/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 -> 775ea6e0a1296fd7b29dfc5da5a4c77d3361f4a8 [2018-10-27 06:10:38,470 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 06:10:38,478 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 06:10:38,483 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 06:10:38,485 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 06:10:38,485 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 06:10:38,486 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_5c2ab514-7dbb-4f82-9a5d-f11940115a3f/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-while2_true-termination_true-no-overflow.c [2018-10-27 06:10:38,531 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5c2ab514-7dbb-4f82-9a5d-f11940115a3f/bin-2019/uautomizer/data/9c732d469/86ea5da1ef614513a4b5842f4c434085/FLAG59c5ffd2c [2018-10-27 06:10:38,912 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 06:10:38,912 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_5c2ab514-7dbb-4f82-9a5d-f11940115a3f/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-while2_true-termination_true-no-overflow.c [2018-10-27 06:10:38,917 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5c2ab514-7dbb-4f82-9a5d-f11940115a3f/bin-2019/uautomizer/data/9c732d469/86ea5da1ef614513a4b5842f4c434085/FLAG59c5ffd2c [2018-10-27 06:10:38,927 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_5c2ab514-7dbb-4f82-9a5d-f11940115a3f/bin-2019/uautomizer/data/9c732d469/86ea5da1ef614513a4b5842f4c434085 [2018-10-27 06:10:38,930 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 06:10:38,931 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-27 06:10:38,932 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 06:10:38,932 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 06:10:38,935 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 06:10:38,936 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 06:10:38" (1/1) ... [2018-10-27 06:10:38,939 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e089980 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:10:38, skipping insertion in model container [2018-10-27 06:10:38,939 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 06:10:38" (1/1) ... [2018-10-27 06:10:38,948 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 06:10:38,959 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 06:10:39,075 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 06:10:39,078 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 06:10:39,087 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 06:10:39,095 INFO L193 MainTranslator]: Completed translation [2018-10-27 06:10:39,096 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:10:39 WrapperNode [2018-10-27 06:10:39,096 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 06:10:39,097 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 06:10:39,097 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 06:10:39,097 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 06:10:39,104 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:10:39" (1/1) ... [2018-10-27 06:10:39,109 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:10:39" (1/1) ... [2018-10-27 06:10:39,123 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 06:10:39,124 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 06:10:39,124 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 06:10:39,124 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 06:10:39,132 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:10:39" (1/1) ... [2018-10-27 06:10:39,132 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:10:39" (1/1) ... [2018-10-27 06:10:39,133 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:10:39" (1/1) ... [2018-10-27 06:10:39,133 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:10:39" (1/1) ... [2018-10-27 06:10:39,134 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:10:39" (1/1) ... [2018-10-27 06:10:39,138 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:10:39" (1/1) ... [2018-10-27 06:10:39,138 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:10:39" (1/1) ... [2018-10-27 06:10:39,139 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 06:10:39,140 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 06:10:39,140 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 06:10:39,140 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 06:10:39,141 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:10:39" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5c2ab514-7dbb-4f82-9a5d-f11940115a3f/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 [2018-10-27 06:10:39,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 06:10:39,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 06:10:39,567 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 06:10:39,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 06:10:39 BoogieIcfgContainer [2018-10-27 06:10:39,568 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 06:10:39,568 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-10-27 06:10:39,569 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-10-27 06:10:39,574 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-10-27 06:10:39,575 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-10-27 06:10:39,575 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.10 06:10:38" (1/3) ... [2018-10-27 06:10:39,576 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@373019c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.10 06:10:39, skipping insertion in model container [2018-10-27 06:10:39,576 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-10-27 06:10:39,577 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:10:39" (2/3) ... [2018-10-27 06:10:39,577 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@373019c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.10 06:10:39, skipping insertion in model container [2018-10-27 06:10:39,577 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-10-27 06:10:39,577 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 06:10:39" (3/3) ... [2018-10-27 06:10:39,579 INFO L375 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-while2_true-termination_true-no-overflow.c [2018-10-27 06:10:39,630 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-27 06:10:39,631 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-10-27 06:10:39,631 INFO L375 BuchiCegarLoop]: Hoare is false [2018-10-27 06:10:39,631 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-10-27 06:10:39,631 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 06:10:39,631 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 06:10:39,631 INFO L379 BuchiCegarLoop]: Difference is false [2018-10-27 06:10:39,632 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 06:10:39,632 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-10-27 06:10:39,647 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2018-10-27 06:10:39,664 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2018-10-27 06:10:39,664 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-10-27 06:10:39,664 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-10-27 06:10:39,670 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-10-27 06:10:39,670 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-10-27 06:10:39,670 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-10-27 06:10:39,670 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2018-10-27 06:10:39,671 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2018-10-27 06:10:39,671 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-10-27 06:10:39,671 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-10-27 06:10:39,671 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-10-27 06:10:39,672 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-10-27 06:10:39,678 INFO L793 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 3#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_~i~0, main_~j~0, main_~N~0;havoc main_~i~0;havoc main_~j~0;havoc main_~N~0;main_~N~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~i~0 := main_~N~0; 13#L17-3true [2018-10-27 06:10:39,678 INFO L795 eck$LassoCheckResult]: Loop: 13#L17-3true assume true; 6#L17-1true assume !!(main_~i~0 > 0);main_~j~0 := main_~N~0; 7#L19-3true assume !true; 4#L19-4true main_~i~0 := main_~i~0 - 1; 13#L17-3true [2018-10-27 06:10:39,683 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:10:39,684 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2018-10-27 06:10:39,686 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:10:39,686 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:10:39,730 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:10:39,730 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:10:39,730 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:10:39,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:10:39,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:10:39,760 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:10:39,761 INFO L82 PathProgramCache]: Analyzing trace with hash 1114569, now seen corresponding path program 1 times [2018-10-27 06:10:39,761 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:10:39,761 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:10:39,762 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:10:39,762 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:10:39,763 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:10:39,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:10:39,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:10:39,789 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 06:10:39,790 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-27 06:10:39,793 INFO L810 eck$LassoCheckResult]: loop already infeasible [2018-10-27 06:10:39,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-27 06:10:39,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-27 06:10:39,806 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 2 states. [2018-10-27 06:10:39,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 06:10:39,812 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2018-10-27 06:10:39,812 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-27 06:10:39,814 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 12 transitions. [2018-10-27 06:10:39,814 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2018-10-27 06:10:39,817 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 7 states and 8 transitions. [2018-10-27 06:10:39,818 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2018-10-27 06:10:39,818 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2018-10-27 06:10:39,819 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 8 transitions. [2018-10-27 06:10:39,819 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-10-27 06:10:39,819 INFO L705 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2018-10-27 06:10:39,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 8 transitions. [2018-10-27 06:10:39,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-10-27 06:10:39,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-10-27 06:10:39,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 8 transitions. [2018-10-27 06:10:39,843 INFO L728 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2018-10-27 06:10:39,843 INFO L608 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2018-10-27 06:10:39,843 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-10-27 06:10:39,843 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 8 transitions. [2018-10-27 06:10:39,844 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2018-10-27 06:10:39,844 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-10-27 06:10:39,844 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-10-27 06:10:39,844 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-10-27 06:10:39,844 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2018-10-27 06:10:39,845 INFO L793 eck$LassoCheckResult]: Stem: 33#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 30#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_~i~0, main_~j~0, main_~N~0;havoc main_~i~0;havoc main_~j~0;havoc main_~N~0;main_~N~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~i~0 := main_~N~0; 31#L17-3 [2018-10-27 06:10:39,845 INFO L795 eck$LassoCheckResult]: Loop: 31#L17-3 assume true; 34#L17-1 assume !!(main_~i~0 > 0);main_~j~0 := main_~N~0; 35#L19-3 assume true; 36#L19-1 assume !(main_~j~0 > 0); 32#L19-4 main_~i~0 := main_~i~0 - 1; 31#L17-3 [2018-10-27 06:10:39,845 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:10:39,845 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2018-10-27 06:10:39,845 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:10:39,846 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:10:39,847 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:10:39,847 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:10:39,847 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:10:39,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:10:39,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:10:39,850 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:10:39,850 INFO L82 PathProgramCache]: Analyzing trace with hash 34543791, now seen corresponding path program 1 times [2018-10-27 06:10:39,851 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:10:39,851 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:10:39,852 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:10:39,852 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-27 06:10:39,852 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:10:39,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:10:39,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:10:39,860 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:10:39,860 INFO L82 PathProgramCache]: Analyzing trace with hash 1805983277, now seen corresponding path program 1 times [2018-10-27 06:10:39,860 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:10:39,861 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:10:39,862 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:10:39,862 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:10:39,862 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:10:39,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:10:39,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:10:39,920 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 06:10:39,920 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-27 06:10:40,041 WARN L179 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-27 06:10:40,078 INFO L214 LassoAnalysis]: Preferences: [2018-10-27 06:10:40,079 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-10-27 06:10:40,079 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-10-27 06:10:40,079 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-10-27 06:10:40,079 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-10-27 06:10:40,079 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:10:40,079 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-10-27 06:10:40,079 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-10-27 06:10:40,080 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-while2_true-termination_true-no-overflow.c_Iteration2_Loop [2018-10-27 06:10:40,080 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-10-27 06:10:40,080 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-10-27 06:10:40,098 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:40,125 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:40,136 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:40,164 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:40,398 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-10-27 06:10:40,399 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5c2ab514-7dbb-4f82-9a5d-f11940115a3f/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 [2018-10-27 06:10:40,403 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:10:40,403 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:10:40,423 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:10:40,423 INFO L446 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_5c2ab514-7dbb-4f82-9a5d-f11940115a3f/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) [2018-10-27 06:10:40,437 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:10:40,438 INFO L163 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:10:40,456 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:10:40,456 INFO L446 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_5c2ab514-7dbb-4f82-9a5d-f11940115a3f/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 [2018-10-27 06:10:40,461 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:10:40,461 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:10:40,476 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:10:40,476 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~j~0=-5, ULTIMATE.start_main_~N~0=-5} Honda state: {ULTIMATE.start_main_~j~0=-5, ULTIMATE.start_main_~N~0=-5} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5c2ab514-7dbb-4f82-9a5d-f11940115a3f/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 [2018-10-27 06:10:40,501 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:10:40,501 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5c2ab514-7dbb-4f82-9a5d-f11940115a3f/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 [2018-10-27 06:10:40,525 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-10-27 06:10:40,525 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:10:40,545 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-10-27 06:10:40,546 INFO L214 LassoAnalysis]: Preferences: [2018-10-27 06:10:40,546 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-10-27 06:10:40,546 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-10-27 06:10:40,546 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-10-27 06:10:40,547 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-10-27 06:10:40,547 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:10:40,547 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-10-27 06:10:40,547 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-10-27 06:10:40,547 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-while2_true-termination_true-no-overflow.c_Iteration2_Loop [2018-10-27 06:10:40,547 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-10-27 06:10:40,547 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-10-27 06:10:40,550 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:40,569 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:40,573 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:40,580 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:40,685 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-10-27 06:10:40,688 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-10-27 06:10:40,689 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 [2018-10-27 06:10:40,690 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:10:40,690 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:10:40,691 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:10:40,691 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:10:40,691 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:10:40,693 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:10:40,693 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:10:40,696 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:10:40,697 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 [2018-10-27 06:10:40,697 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:10:40,697 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:10:40,697 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:10:40,698 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:10:40,706 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:10:40,706 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:10:40,712 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:10:40,712 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 [2018-10-27 06:10:40,713 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:10:40,713 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:10:40,713 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:10:40,713 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:10:40,715 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:10:40,715 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:10:40,723 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:10:40,724 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 [2018-10-27 06:10:40,724 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:10:40,724 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:10:40,724 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:10:40,725 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:10:40,725 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:10:40,725 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:10:40,725 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:10:40,730 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-10-27 06:10:40,732 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-10-27 06:10:40,732 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-10-27 06:10:40,734 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-10-27 06:10:40,734 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-10-27 06:10:40,735 INFO L517 LassoAnalysis]: Proved termination. [2018-10-27 06:10:40,735 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2018-10-27 06:10:40,736 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-10-27 06:10:40,856 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:10:40,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:10:40,874 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:10:40,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:10:40,893 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:10:40,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:10:40,910 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 [2018-10-27 06:10:40,910 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 2 Second operand 4 states. [2018-10-27 06:10:40,946 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 2. Second operand 4 states. Result 12 states and 15 transitions. Complement of second has 6 states. [2018-10-27 06:10:40,947 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 [2018-10-27 06:10:40,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-10-27 06:10:40,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2018-10-27 06:10:40,949 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 5 letters. [2018-10-27 06:10:40,950 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:10:40,950 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 7 letters. Loop has 5 letters. [2018-10-27 06:10:40,951 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:10:40,951 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 10 letters. [2018-10-27 06:10:40,951 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:10:40,951 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 15 transitions. [2018-10-27 06:10:40,952 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-10-27 06:10:40,953 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 11 states and 14 transitions. [2018-10-27 06:10:40,953 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2018-10-27 06:10:40,953 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2018-10-27 06:10:40,953 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 14 transitions. [2018-10-27 06:10:40,953 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-10-27 06:10:40,953 INFO L705 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2018-10-27 06:10:40,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 14 transitions. [2018-10-27 06:10:40,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-10-27 06:10:40,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-10-27 06:10:40,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2018-10-27 06:10:40,955 INFO L728 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2018-10-27 06:10:40,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-27 06:10:40,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-27 06:10:40,956 INFO L87 Difference]: Start difference. First operand 11 states and 14 transitions. Second operand 4 states. [2018-10-27 06:10:41,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 06:10:41,012 INFO L93 Difference]: Finished difference Result 22 states and 26 transitions. [2018-10-27 06:10:41,013 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-27 06:10:41,013 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 26 transitions. [2018-10-27 06:10:41,014 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2018-10-27 06:10:41,014 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 22 states and 26 transitions. [2018-10-27 06:10:41,015 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2018-10-27 06:10:41,015 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2018-10-27 06:10:41,015 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 26 transitions. [2018-10-27 06:10:41,015 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-10-27 06:10:41,015 INFO L705 BuchiCegarLoop]: Abstraction has 22 states and 26 transitions. [2018-10-27 06:10:41,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 26 transitions. [2018-10-27 06:10:41,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 14. [2018-10-27 06:10:41,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-10-27 06:10:41,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 17 transitions. [2018-10-27 06:10:41,017 INFO L728 BuchiCegarLoop]: Abstraction has 14 states and 17 transitions. [2018-10-27 06:10:41,017 INFO L608 BuchiCegarLoop]: Abstraction has 14 states and 17 transitions. [2018-10-27 06:10:41,017 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-10-27 06:10:41,017 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 17 transitions. [2018-10-27 06:10:41,018 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-10-27 06:10:41,018 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-10-27 06:10:41,018 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-10-27 06:10:41,018 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-10-27 06:10:41,018 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-10-27 06:10:41,018 INFO L793 eck$LassoCheckResult]: Stem: 134#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 132#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_~i~0, main_~j~0, main_~N~0;havoc main_~i~0;havoc main_~j~0;havoc main_~N~0;main_~N~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~i~0 := main_~N~0; 133#L17-3 assume true; 135#L17-1 assume !!(main_~i~0 > 0);main_~j~0 := main_~N~0; 136#L19-3 [2018-10-27 06:10:41,018 INFO L795 eck$LassoCheckResult]: Loop: 136#L19-3 assume true; 139#L19-1 assume !!(main_~j~0 > 0);main_~j~0 := main_~j~0 - 1; 136#L19-3 [2018-10-27 06:10:41,019 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:10:41,019 INFO L82 PathProgramCache]: Analyzing trace with hash 925641, now seen corresponding path program 1 times [2018-10-27 06:10:41,019 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:10:41,019 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:10:41,020 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:10:41,020 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:10:41,020 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:10:41,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:10:41,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:10:41,025 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:10:41,025 INFO L82 PathProgramCache]: Analyzing trace with hash 1479, now seen corresponding path program 1 times [2018-10-27 06:10:41,025 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:10:41,025 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:10:41,026 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:10:41,026 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:10:41,026 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:10:41,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:10:41,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:10:41,029 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:10:41,029 INFO L82 PathProgramCache]: Analyzing trace with hash 889541519, now seen corresponding path program 1 times [2018-10-27 06:10:41,030 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:10:41,030 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:10:41,031 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:10:41,031 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:10:41,031 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:10:41,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:10:41,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:10:41,057 INFO L214 LassoAnalysis]: Preferences: [2018-10-27 06:10:41,057 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-10-27 06:10:41,057 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-10-27 06:10:41,057 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-10-27 06:10:41,057 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-10-27 06:10:41,057 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:10:41,057 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-10-27 06:10:41,058 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-10-27 06:10:41,058 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-while2_true-termination_true-no-overflow.c_Iteration3_Loop [2018-10-27 06:10:41,058 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-10-27 06:10:41,058 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-10-27 06:10:41,059 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:41,062 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:41,064 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:41,098 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-10-27 06:10:41,098 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5c2ab514-7dbb-4f82-9a5d-f11940115a3f/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 [2018-10-27 06:10:41,101 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:10:41,101 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:10:41,118 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:10:41,118 INFO L446 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_5c2ab514-7dbb-4f82-9a5d-f11940115a3f/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 [2018-10-27 06:10:41,122 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:10:41,122 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:10:41,140 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:10:41,140 INFO L446 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_5c2ab514-7dbb-4f82-9a5d-f11940115a3f/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) [2018-10-27 06:10:41,143 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:10:41,143 INFO L163 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5c2ab514-7dbb-4f82-9a5d-f11940115a3f/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 [2018-10-27 06:10:41,165 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-10-27 06:10:41,165 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:10:41,184 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-10-27 06:10:41,186 INFO L214 LassoAnalysis]: Preferences: [2018-10-27 06:10:41,186 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-10-27 06:10:41,186 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-10-27 06:10:41,186 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-10-27 06:10:41,186 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-10-27 06:10:41,186 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:10:41,186 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-10-27 06:10:41,186 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-10-27 06:10:41,186 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-while2_true-termination_true-no-overflow.c_Iteration3_Loop [2018-10-27 06:10:41,186 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-10-27 06:10:41,186 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-10-27 06:10:41,187 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:41,191 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:41,204 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:41,393 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2018-10-27 06:10:41,590 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-10-27 06:10:41,591 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-10-27 06:10:41,591 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 [2018-10-27 06:10:41,592 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:10:41,592 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:10:41,592 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:10:41,592 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:10:41,594 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:10:41,594 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:10:41,598 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:10:41,599 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 [2018-10-27 06:10:41,599 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:10:41,599 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:10:41,600 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:10:41,602 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:10:41,603 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:10:41,603 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:10:41,603 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:10:41,607 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-10-27 06:10:41,611 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-10-27 06:10:41,611 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-10-27 06:10:41,612 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-10-27 06:10:41,612 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-10-27 06:10:41,612 INFO L517 LassoAnalysis]: Proved termination. [2018-10-27 06:10:41,612 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0) = 1*ULTIMATE.start_main_~j~0 Supporting invariants [] [2018-10-27 06:10:41,612 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-10-27 06:10:41,626 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:10:41,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:10:41,631 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:10:41,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:10:41,635 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:10:41,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:10:41,636 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-10-27 06:10:41,636 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states and 17 transitions. cyclomatic complexity: 5 Second operand 3 states. [2018-10-27 06:10:41,647 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states and 17 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 31 states and 37 transitions. Complement of second has 5 states. [2018-10-27 06:10:41,647 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 [2018-10-27 06:10:41,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-10-27 06:10:41,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2018-10-27 06:10:41,648 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 4 letters. Loop has 2 letters. [2018-10-27 06:10:41,648 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:10:41,648 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 6 letters. Loop has 2 letters. [2018-10-27 06:10:41,648 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:10:41,648 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 4 letters. Loop has 4 letters. [2018-10-27 06:10:41,649 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:10:41,649 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 37 transitions. [2018-10-27 06:10:41,650 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-10-27 06:10:41,650 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 21 states and 25 transitions. [2018-10-27 06:10:41,651 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2018-10-27 06:10:41,651 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2018-10-27 06:10:41,651 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 25 transitions. [2018-10-27 06:10:41,651 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-10-27 06:10:41,651 INFO L705 BuchiCegarLoop]: Abstraction has 21 states and 25 transitions. [2018-10-27 06:10:41,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 25 transitions. [2018-10-27 06:10:41,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 16. [2018-10-27 06:10:41,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-10-27 06:10:41,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2018-10-27 06:10:41,655 INFO L728 BuchiCegarLoop]: Abstraction has 16 states and 19 transitions. [2018-10-27 06:10:41,655 INFO L608 BuchiCegarLoop]: Abstraction has 16 states and 19 transitions. [2018-10-27 06:10:41,655 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-10-27 06:10:41,655 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 19 transitions. [2018-10-27 06:10:41,656 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-10-27 06:10:41,656 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-10-27 06:10:41,656 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-10-27 06:10:41,657 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1] [2018-10-27 06:10:41,657 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-10-27 06:10:41,657 INFO L793 eck$LassoCheckResult]: Stem: 224#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 215#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_~i~0, main_~j~0, main_~N~0;havoc main_~i~0;havoc main_~j~0;havoc main_~N~0;main_~N~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~i~0 := main_~N~0; 216#L17-3 assume true; 226#L17-1 assume !!(main_~i~0 > 0);main_~j~0 := main_~N~0; 219#L19-3 assume true; 220#L19-1 assume !!(main_~j~0 > 0);main_~j~0 := main_~j~0 - 1; 225#L19-3 assume true; 227#L19-1 assume !(main_~j~0 > 0); 213#L19-4 main_~i~0 := main_~i~0 - 1; 214#L17-3 assume true; 221#L17-1 assume !!(main_~i~0 > 0);main_~j~0 := main_~N~0; 217#L19-3 [2018-10-27 06:10:41,657 INFO L795 eck$LassoCheckResult]: Loop: 217#L19-3 assume true; 218#L19-1 assume !!(main_~j~0 > 0);main_~j~0 := main_~j~0 - 1; 217#L19-3 [2018-10-27 06:10:41,657 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:10:41,657 INFO L82 PathProgramCache]: Analyzing trace with hash -1119453267, now seen corresponding path program 1 times [2018-10-27 06:10:41,658 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:10:41,658 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:10:41,659 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:10:41,659 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:10:41,659 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:10:41,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:10:41,734 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:10:41,734 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 06:10:41,734 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5c2ab514-7dbb-4f82-9a5d-f11940115a3f/bin-2019/uautomizer/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-27 06:10:41,742 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:10:41,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:10:41,762 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:10:41,814 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:10:41,830 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-27 06:10:41,831 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2018-10-27 06:10:41,831 INFO L798 eck$LassoCheckResult]: stem already infeasible [2018-10-27 06:10:41,831 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:10:41,831 INFO L82 PathProgramCache]: Analyzing trace with hash 1479, now seen corresponding path program 2 times [2018-10-27 06:10:41,831 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:10:41,831 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:10:41,832 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:10:41,832 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:10:41,832 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:10:41,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:10:41,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:10:41,846 INFO L214 LassoAnalysis]: Preferences: [2018-10-27 06:10:41,846 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-10-27 06:10:41,847 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-10-27 06:10:41,847 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-10-27 06:10:41,847 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-10-27 06:10:41,847 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:10:41,847 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-10-27 06:10:41,847 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-10-27 06:10:41,847 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-while2_true-termination_true-no-overflow.c_Iteration4_Loop [2018-10-27 06:10:41,847 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-10-27 06:10:41,847 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-10-27 06:10:41,848 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:41,851 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:41,853 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:41,883 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-10-27 06:10:41,883 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5c2ab514-7dbb-4f82-9a5d-f11940115a3f/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 [2018-10-27 06:10:41,886 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:10:41,886 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:10:41,914 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:10:41,914 INFO L446 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_5c2ab514-7dbb-4f82-9a5d-f11940115a3f/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 [2018-10-27 06:10:41,917 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:10:41,917 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:10:41,934 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:10:41,934 INFO L446 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_5c2ab514-7dbb-4f82-9a5d-f11940115a3f/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 [2018-10-27 06:10:41,938 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:10:41,938 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5c2ab514-7dbb-4f82-9a5d-f11940115a3f/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 [2018-10-27 06:10:41,958 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-10-27 06:10:41,958 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:10:41,977 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-10-27 06:10:41,978 INFO L214 LassoAnalysis]: Preferences: [2018-10-27 06:10:41,978 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-10-27 06:10:41,978 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-10-27 06:10:41,979 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-10-27 06:10:41,979 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-10-27 06:10:41,979 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:10:41,979 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-10-27 06:10:41,979 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-10-27 06:10:41,979 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-while2_true-termination_true-no-overflow.c_Iteration4_Loop [2018-10-27 06:10:41,979 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-10-27 06:10:41,979 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-10-27 06:10:41,980 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:41,984 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:41,989 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:42,096 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-10-27 06:10:42,096 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-10-27 06:10:42,096 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 [2018-10-27 06:10:42,097 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:10:42,097 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:10:42,097 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:10:42,097 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:10:42,098 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:10:42,099 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:10:42,103 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:10:42,104 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 [2018-10-27 06:10:42,104 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:10:42,104 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:10:42,105 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:10:42,105 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:10:42,105 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:10:42,105 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:10:42,105 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:10:42,111 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-10-27 06:10:42,113 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-10-27 06:10:42,113 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-10-27 06:10:42,114 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-10-27 06:10:42,114 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-10-27 06:10:42,114 INFO L517 LassoAnalysis]: Proved termination. [2018-10-27 06:10:42,114 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0) = 1*ULTIMATE.start_main_~j~0 Supporting invariants [] [2018-10-27 06:10:42,115 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-10-27 06:10:42,148 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:10:42,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:10:42,153 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:10:42,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:10:42,157 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:10:42,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:10:42,157 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-10-27 06:10:42,158 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 19 transitions. cyclomatic complexity: 6 Second operand 3 states. [2018-10-27 06:10:42,172 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 19 transitions. cyclomatic complexity: 6. Second operand 3 states. Result 26 states and 31 transitions. Complement of second has 5 states. [2018-10-27 06:10:42,174 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 [2018-10-27 06:10:42,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-10-27 06:10:42,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2018-10-27 06:10:42,174 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 11 letters. Loop has 2 letters. [2018-10-27 06:10:42,174 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:10:42,175 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-10-27 06:10:42,197 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:10:42,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:10:42,205 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:10:42,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:10:42,210 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:10:42,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:10:42,211 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2018-10-27 06:10:42,211 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 19 transitions. cyclomatic complexity: 6 Second operand 3 states. [2018-10-27 06:10:42,220 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 19 transitions. cyclomatic complexity: 6. Second operand 3 states. Result 26 states and 31 transitions. Complement of second has 5 states. [2018-10-27 06:10:42,221 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 [2018-10-27 06:10:42,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-10-27 06:10:42,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2018-10-27 06:10:42,221 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 11 letters. Loop has 2 letters. [2018-10-27 06:10:42,221 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:10:42,221 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-10-27 06:10:42,248 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:10:42,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:10:42,261 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:10:42,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:10:42,265 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:10:42,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:10:42,265 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-10-27 06:10:42,265 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 19 transitions. cyclomatic complexity: 6 Second operand 3 states. [2018-10-27 06:10:42,277 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 19 transitions. cyclomatic complexity: 6. Second operand 3 states. Result 25 states and 31 transitions. Complement of second has 4 states. [2018-10-27 06:10:42,277 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 [2018-10-27 06:10:42,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-10-27 06:10:42,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 14 transitions. [2018-10-27 06:10:42,278 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 11 letters. Loop has 2 letters. [2018-10-27 06:10:42,278 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:10:42,278 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 13 letters. Loop has 2 letters. [2018-10-27 06:10:42,278 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:10:42,279 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 11 letters. Loop has 4 letters. [2018-10-27 06:10:42,279 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:10:42,279 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 31 transitions. [2018-10-27 06:10:42,281 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-10-27 06:10:42,281 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 0 states and 0 transitions. [2018-10-27 06:10:42,281 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-10-27 06:10:42,281 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-10-27 06:10:42,281 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-10-27 06:10:42,281 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-10-27 06:10:42,281 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-27 06:10:42,281 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-27 06:10:42,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-27 06:10:42,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2018-10-27 06:10:42,282 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 9 states. [2018-10-27 06:10:42,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 06:10:42,282 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2018-10-27 06:10:42,282 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-27 06:10:42,282 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2018-10-27 06:10:42,282 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-10-27 06:10:42,282 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2018-10-27 06:10:42,283 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-10-27 06:10:42,283 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-10-27 06:10:42,283 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-10-27 06:10:42,283 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-10-27 06:10:42,283 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-27 06:10:42,283 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-27 06:10:42,283 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-27 06:10:42,283 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-10-27 06:10:42,283 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-10-27 06:10:42,283 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-10-27 06:10:42,283 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-10-27 06:10:42,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.10 06:10:42 BoogieIcfgContainer [2018-10-27 06:10:42,290 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-10-27 06:10:42,290 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-27 06:10:42,290 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-27 06:10:42,290 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-27 06:10:42,291 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 06:10:39" (3/4) ... [2018-10-27 06:10:42,294 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-10-27 06:10:42,294 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-27 06:10:42,294 INFO L168 Benchmark]: Toolchain (without parser) took 3363.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 189.3 MB). Free memory was 955.8 MB in the beginning and 958.9 MB in the end (delta: -3.1 MB). Peak memory consumption was 186.2 MB. Max. memory is 11.5 GB. [2018-10-27 06:10:42,295 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 979.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 06:10:42,295 INFO L168 Benchmark]: CACSL2BoogieTranslator took 164.37 ms. Allocated memory is still 1.0 GB. Free memory was 955.8 MB in the beginning and 944.9 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2018-10-27 06:10:42,296 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.03 ms. Allocated memory is still 1.0 GB. Free memory is still 944.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 06:10:42,296 INFO L168 Benchmark]: Boogie Preprocessor took 15.76 ms. Allocated memory is still 1.0 GB. Free memory was 944.9 MB in the beginning and 942.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-27 06:10:42,296 INFO L168 Benchmark]: RCFGBuilder took 428.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 189.3 MB). Free memory was 942.2 MB in the beginning and 1.2 GB in the end (delta: -234.9 MB). Peak memory consumption was 21.1 MB. Max. memory is 11.5 GB. [2018-10-27 06:10:42,297 INFO L168 Benchmark]: BuchiAutomizer took 2721.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 958.9 MB in the end (delta: 218.2 MB). Peak memory consumption was 218.2 MB. Max. memory is 11.5 GB. [2018-10-27 06:10:42,298 INFO L168 Benchmark]: Witness Printer took 3.78 ms. Allocated memory is still 1.2 GB. Free memory is still 958.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 06:10:42,302 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 979.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 164.37 ms. Allocated memory is still 1.0 GB. Free memory was 955.8 MB in the beginning and 944.9 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 27.03 ms. Allocated memory is still 1.0 GB. Free memory is still 944.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.76 ms. Allocated memory is still 1.0 GB. Free memory was 944.9 MB in the beginning and 942.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 428.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 189.3 MB). Free memory was 942.2 MB in the beginning and 1.2 GB in the end (delta: -234.9 MB). Peak memory consumption was 21.1 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2721.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 958.9 MB in the end (delta: 218.2 MB). Peak memory consumption was 218.2 MB. Max. memory is 11.5 GB. * Witness Printer took 3.78 ms. Allocated memory is still 1.2 GB. Free memory is still 958.9 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 6 terminating modules (3 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function i and consists of 4 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. 3 modules have a trivial ranking function, the largest among these consists of 9 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.6s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 2.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 13 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 16 states and ocurred in iteration 3. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 59 SDtfs, 43 SDslu, 22 SDs, 0 SdLazy, 31 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT1 conc0 concLT1 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital12 mio100 ax203 hnf98 lsp42 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 15ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 7 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...