./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi3_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_5161536d-ae16-4754-aa68-32f064db982e/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_5161536d-ae16-4754-aa68-32f064db982e/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_5161536d-ae16-4754-aa68-32f064db982e/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_5161536d-ae16-4754-aa68-32f064db982e/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi3_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_5161536d-ae16-4754-aa68-32f064db982e/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_5161536d-ae16-4754-aa68-32f064db982e/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 500cb8735f650eb0e7c33062ddc23c2166b17f19 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-08 12:12:44,723 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 12:12:44,724 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 12:12:44,731 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 12:12:44,731 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 12:12:44,732 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 12:12:44,732 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 12:12:44,733 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 12:12:44,734 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 12:12:44,735 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 12:12:44,735 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 12:12:44,735 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 12:12:44,736 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 12:12:44,737 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 12:12:44,738 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 12:12:44,738 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 12:12:44,739 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 12:12:44,740 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 12:12:44,741 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 12:12:44,742 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 12:12:44,743 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 12:12:44,744 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 12:12:44,745 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 12:12:44,745 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 12:12:44,745 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 12:12:44,746 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 12:12:44,747 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 12:12:44,747 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 12:12:44,748 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 12:12:44,748 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 12:12:44,749 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 12:12:44,749 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 12:12:44,749 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 12:12:44,749 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 12:12:44,750 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 12:12:44,750 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 12:12:44,751 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_5161536d-ae16-4754-aa68-32f064db982e/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-12-08 12:12:44,759 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 12:12:44,760 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 12:12:44,760 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-08 12:12:44,760 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-08 12:12:44,761 INFO L133 SettingsManager]: * Use SBE=true [2018-12-08 12:12:44,761 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-12-08 12:12:44,761 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-12-08 12:12:44,761 INFO L133 SettingsManager]: * Use old map elimination=false [2018-12-08 12:12:44,761 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-12-08 12:12:44,761 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-12-08 12:12:44,761 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-12-08 12:12:44,762 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 12:12:44,762 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-08 12:12:44,762 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 12:12:44,762 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 12:12:44,762 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-12-08 12:12:44,762 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-12-08 12:12:44,762 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-12-08 12:12:44,763 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 12:12:44,763 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-12-08 12:12:44,763 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 12:12:44,763 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-12-08 12:12:44,763 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 12:12:44,763 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 12:12:44,764 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-12-08 12:12:44,764 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 12:12:44,764 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-08 12:12:44,764 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-12-08 12:12:44,765 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-12-08 12:12:44,765 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_5161536d-ae16-4754-aa68-32f064db982e/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 -> 500cb8735f650eb0e7c33062ddc23c2166b17f19 [2018-12-08 12:12:44,785 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 12:12:44,794 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 12:12:44,795 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 12:12:44,796 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 12:12:44,796 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 12:12:44,797 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_5161536d-ae16-4754-aa68-32f064db982e/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi3_true-termination_true-no-overflow.c [2018-12-08 12:12:44,833 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5161536d-ae16-4754-aa68-32f064db982e/bin-2019/uautomizer/data/eb2f0e8da/aae2a9791d1f423b92752303e07831a0/FLAGf16dc7468 [2018-12-08 12:12:45,202 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 12:12:45,202 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_5161536d-ae16-4754-aa68-32f064db982e/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi3_true-termination_true-no-overflow.c [2018-12-08 12:12:45,205 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5161536d-ae16-4754-aa68-32f064db982e/bin-2019/uautomizer/data/eb2f0e8da/aae2a9791d1f423b92752303e07831a0/FLAGf16dc7468 [2018-12-08 12:12:45,213 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_5161536d-ae16-4754-aa68-32f064db982e/bin-2019/uautomizer/data/eb2f0e8da/aae2a9791d1f423b92752303e07831a0 [2018-12-08 12:12:45,215 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 12:12:45,216 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 12:12:45,216 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 12:12:45,216 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 12:12:45,218 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 12:12:45,219 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 12:12:45" (1/1) ... [2018-12-08 12:12:45,220 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fd2551a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 12:12:45, skipping insertion in model container [2018-12-08 12:12:45,220 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 12:12:45" (1/1) ... [2018-12-08 12:12:45,224 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 12:12:45,233 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 12:12:45,312 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 12:12:45,314 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 12:12:45,323 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 12:12:45,330 INFO L195 MainTranslator]: Completed translation [2018-12-08 12:12:45,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 12:12:45 WrapperNode [2018-12-08 12:12:45,330 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 12:12:45,331 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 12:12:45,331 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 12:12:45,331 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 12:12:45,336 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 12:12:45" (1/1) ... [2018-12-08 12:12:45,339 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 12:12:45" (1/1) ... [2018-12-08 12:12:45,349 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 12:12:45,349 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 12:12:45,349 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 12:12:45,349 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 12:12:45,354 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 12:12:45" (1/1) ... [2018-12-08 12:12:45,354 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 12:12:45" (1/1) ... [2018-12-08 12:12:45,355 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 12:12:45" (1/1) ... [2018-12-08 12:12:45,355 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 12:12:45" (1/1) ... [2018-12-08 12:12:45,356 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 12:12:45" (1/1) ... [2018-12-08 12:12:45,358 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 12:12:45" (1/1) ... [2018-12-08 12:12:45,359 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 12:12:45" (1/1) ... [2018-12-08 12:12:45,359 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 12:12:45,359 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 12:12:45,359 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 12:12:45,360 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 12:12:45,360 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 12:12:45" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5161536d-ae16-4754-aa68-32f064db982e/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 12:12:45,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 12:12:45,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 12:12:45,494 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 12:12:45,494 INFO L280 CfgBuilder]: Removed 5 assue(true) statements. [2018-12-08 12:12:45,495 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 12:12:45 BoogieIcfgContainer [2018-12-08 12:12:45,495 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 12:12:45,495 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-12-08 12:12:45,495 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-12-08 12:12:45,497 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-12-08 12:12:45,498 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-08 12:12:45,498 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 08.12 12:12:45" (1/3) ... [2018-12-08 12:12:45,499 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1d9ec17d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 08.12 12:12:45, skipping insertion in model container [2018-12-08 12:12:45,499 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-08 12:12:45,499 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 12:12:45" (2/3) ... [2018-12-08 12:12:45,499 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1d9ec17d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 08.12 12:12:45, skipping insertion in model container [2018-12-08 12:12:45,499 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-08 12:12:45,499 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 12:12:45" (3/3) ... [2018-12-08 12:12:45,500 INFO L375 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-speedpldi3_true-termination_true-no-overflow.c [2018-12-08 12:12:45,538 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-08 12:12:45,539 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-12-08 12:12:45,539 INFO L375 BuchiCegarLoop]: Hoare is false [2018-12-08 12:12:45,539 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-12-08 12:12:45,539 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 12:12:45,539 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 12:12:45,539 INFO L379 BuchiCegarLoop]: Difference is false [2018-12-08 12:12:45,539 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 12:12:45,539 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-12-08 12:12:45,548 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2018-12-08 12:12:45,561 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-12-08 12:12:45,561 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-08 12:12:45,562 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-08 12:12:45,567 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-12-08 12:12:45,567 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-08 12:12:45,567 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-12-08 12:12:45,568 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2018-12-08 12:12:45,568 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-12-08 12:12:45,568 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-08 12:12:45,569 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-08 12:12:45,569 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-12-08 12:12:45,569 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-08 12:12:45,575 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0, main_~m~0, main_~n~0;havoc main_~i~0;havoc main_~j~0;havoc main_~m~0;havoc main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~m~0 := main_#t~nondet1;havoc main_#t~nondet1; 6#L17true assume main_~m~0 > 0 && main_~n~0 > main_~m~0;main_~i~0 := 0;main_~j~0 := 0; 9#L21-2true [2018-12-08 12:12:45,576 INFO L796 eck$LassoCheckResult]: Loop: 9#L21-2true assume !!(main_~i~0 < main_~n~0); 3#L21true assume main_~j~0 < main_~m~0;main_~j~0 := 1 + main_~j~0; 9#L21-2true [2018-12-08 12:12:45,580 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 12:12:45,580 INFO L82 PathProgramCache]: Analyzing trace with hash 996, now seen corresponding path program 1 times [2018-12-08 12:12:45,581 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 12:12:45,582 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 12:12:45,622 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 12:12:45,622 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 12:12:45,622 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 12:12:45,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 12:12:45,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 12:12:45,650 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 12:12:45,650 INFO L82 PathProgramCache]: Analyzing trace with hash 1380, now seen corresponding path program 1 times [2018-12-08 12:12:45,650 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 12:12:45,650 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 12:12:45,651 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 12:12:45,651 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 12:12:45,651 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 12:12:45,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 12:12:45,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 12:12:45,656 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 12:12:45,656 INFO L82 PathProgramCache]: Analyzing trace with hash 957575, now seen corresponding path program 1 times [2018-12-08 12:12:45,656 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 12:12:45,656 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 12:12:45,657 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 12:12:45,657 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 12:12:45,657 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 12:12:45,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 12:12:45,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 12:12:45,689 INFO L216 LassoAnalysis]: Preferences: [2018-12-08 12:12:45,690 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-08 12:12:45,690 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-08 12:12:45,690 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-08 12:12:45,690 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-08 12:12:45,690 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 12:12:45,690 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-08 12:12:45,690 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-08 12:12:45,691 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3_true-termination_true-no-overflow.c_Iteration1_Loop [2018-12-08 12:12:45,691 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-08 12:12:45,691 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-08 12:12:45,709 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 12:12:45,715 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 12:12:45,718 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 12:12:45,720 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 12:12:45,763 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-08 12:12:45,764 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5161536d-ae16-4754-aa68-32f064db982e/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 12:12:45,767 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 12:12:45,767 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 12:12:45,787 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-08 12:12:45,787 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5161536d-ae16-4754-aa68-32f064db982e/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 12:12:45,790 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 12:12:45,790 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 12:12:45,806 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-08 12:12:45,806 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5161536d-ae16-4754-aa68-32f064db982e/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 12:12:45,809 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 12:12:45,809 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 12:12:45,825 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-08 12:12:45,825 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~n~0=1, ULTIMATE.start_main_~i~0=0} Honda state: {ULTIMATE.start_main_~n~0=1, ULTIMATE.start_main_~i~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5161536d-ae16-4754-aa68-32f064db982e/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 12:12:45,828 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 12:12:45,828 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5161536d-ae16-4754-aa68-32f064db982e/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 [2018-12-08 12:12:45,846 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-08 12:12:45,846 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 12:12:45,953 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-08 12:12:45,954 INFO L216 LassoAnalysis]: Preferences: [2018-12-08 12:12:45,954 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-08 12:12:45,954 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-08 12:12:45,954 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-08 12:12:45,954 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-08 12:12:45,954 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 12:12:45,955 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-08 12:12:45,955 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-08 12:12:45,955 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3_true-termination_true-no-overflow.c_Iteration1_Loop [2018-12-08 12:12:45,955 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-08 12:12:45,955 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-08 12:12:45,956 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 12:12:45,959 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 12:12:45,962 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 12:12:45,964 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 12:12:46,006 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-08 12:12:46,009 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-08 12:12:46,010 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-08 12:12:46,011 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 12:12:46,011 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-08 12:12:46,011 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 12:12:46,011 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 12:12:46,011 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 12:12:46,013 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-08 12:12:46,013 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-08 12:12:46,014 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 12:12:46,015 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-08 12:12:46,015 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 12:12:46,015 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 12:12:46,015 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 12:12:46,015 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 12:12:46,017 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-08 12:12:46,017 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-08 12:12:46,020 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 12:12:46,020 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-08 12:12:46,020 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 12:12:46,020 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 12:12:46,020 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 12:12:46,021 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 12:12:46,022 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-08 12:12:46,022 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-08 12:12:46,026 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 12:12:46,026 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-08 12:12:46,026 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 12:12:46,027 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-08 12:12:46,027 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 12:12:46,027 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 12:12:46,027 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 12:12:46,027 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-08 12:12:46,027 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-08 12:12:46,030 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-08 12:12:46,033 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-08 12:12:46,033 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-12-08 12:12:46,034 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-08 12:12:46,034 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-08 12:12:46,034 INFO L518 LassoAnalysis]: Proved termination. [2018-12-08 12:12:46,034 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0, ULTIMATE.start_main_~m~0) = -1*ULTIMATE.start_main_~j~0 + 1*ULTIMATE.start_main_~m~0 Supporting invariants [] [2018-12-08 12:12:46,035 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-08 12:12:46,056 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 12:12:46,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 12:12:46,063 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 12:12:46,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 12:12:46,070 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 12:12:46,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 12:12:46,080 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-12-08 12:12:46,081 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states. Second operand 3 states. [2018-12-08 12:12:46,103 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states.. Second operand 3 states. Result 28 states and 35 transitions. Complement of second has 6 states. [2018-12-08 12:12:46,104 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-08 12:12:46,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-08 12:12:46,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2018-12-08 12:12:46,106 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 2 letters. Loop has 2 letters. [2018-12-08 12:12:46,107 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 12:12:46,107 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 4 letters. Loop has 2 letters. [2018-12-08 12:12:46,107 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 12:12:46,107 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 2 letters. Loop has 4 letters. [2018-12-08 12:12:46,107 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 12:12:46,108 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 35 transitions. [2018-12-08 12:12:46,109 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-12-08 12:12:46,111 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 8 states and 11 transitions. [2018-12-08 12:12:46,112 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2018-12-08 12:12:46,112 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2018-12-08 12:12:46,112 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2018-12-08 12:12:46,112 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-08 12:12:46,113 INFO L705 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2018-12-08 12:12:46,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2018-12-08 12:12:46,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2018-12-08 12:12:46,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2018-12-08 12:12:46,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2018-12-08 12:12:46,128 INFO L728 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2018-12-08 12:12:46,128 INFO L608 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2018-12-08 12:12:46,128 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-12-08 12:12:46,128 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 11 transitions. [2018-12-08 12:12:46,128 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-12-08 12:12:46,128 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-08 12:12:46,128 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-08 12:12:46,128 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-12-08 12:12:46,129 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-08 12:12:46,129 INFO L794 eck$LassoCheckResult]: Stem: 76#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0, main_~m~0, main_~n~0;havoc main_~i~0;havoc main_~j~0;havoc main_~m~0;havoc main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~m~0 := main_#t~nondet1;havoc main_#t~nondet1; 77#L17 assume main_~m~0 > 0 && main_~n~0 > main_~m~0;main_~i~0 := 0;main_~j~0 := 0; 78#L21-2 assume !!(main_~i~0 < main_~n~0); 72#L21 assume !(main_~j~0 < main_~m~0);main_~j~0 := 0;main_~i~0 := 1 + main_~i~0; 73#L21-2 [2018-12-08 12:12:46,129 INFO L796 eck$LassoCheckResult]: Loop: 73#L21-2 assume !!(main_~i~0 < main_~n~0); 79#L21 assume main_~j~0 < main_~m~0;main_~j~0 := 1 + main_~j~0; 73#L21-2 [2018-12-08 12:12:46,129 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 12:12:46,129 INFO L82 PathProgramCache]: Analyzing trace with hash 957577, now seen corresponding path program 1 times [2018-12-08 12:12:46,129 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 12:12:46,129 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 12:12:46,130 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 12:12:46,130 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 12:12:46,130 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 12:12:46,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 12:12:46,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 12:12:46,151 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 12:12:46,151 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-08 12:12:46,152 INFO L799 eck$LassoCheckResult]: stem already infeasible [2018-12-08 12:12:46,152 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 12:12:46,152 INFO L82 PathProgramCache]: Analyzing trace with hash 1380, now seen corresponding path program 2 times [2018-12-08 12:12:46,152 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 12:12:46,152 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 12:12:46,153 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 12:12:46,153 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 12:12:46,153 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 12:12:46,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 12:12:46,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 12:12:46,166 INFO L216 LassoAnalysis]: Preferences: [2018-12-08 12:12:46,167 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-08 12:12:46,167 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-08 12:12:46,167 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-08 12:12:46,167 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-08 12:12:46,167 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 12:12:46,167 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-08 12:12:46,167 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-08 12:12:46,167 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3_true-termination_true-no-overflow.c_Iteration2_Loop [2018-12-08 12:12:46,167 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-08 12:12:46,167 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-08 12:12:46,168 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 12:12:46,170 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 12:12:46,172 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 12:12:46,178 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 12:12:46,215 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-08 12:12:46,215 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5161536d-ae16-4754-aa68-32f064db982e/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 [2018-12-08 12:12:46,216 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 12:12:46,216 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 12:12:46,232 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-08 12:12:46,232 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5161536d-ae16-4754-aa68-32f064db982e/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 [2018-12-08 12:12:46,235 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 12:12:46,235 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 12:12:46,249 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-08 12:12:46,249 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5161536d-ae16-4754-aa68-32f064db982e/bin-2019/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 12:12:46,252 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 12:12:46,252 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5161536d-ae16-4754-aa68-32f064db982e/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 [2018-12-08 12:12:46,268 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-08 12:12:46,268 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 12:12:46,374 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-08 12:12:46,376 INFO L216 LassoAnalysis]: Preferences: [2018-12-08 12:12:46,376 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-08 12:12:46,376 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-08 12:12:46,376 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-08 12:12:46,376 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-08 12:12:46,376 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 12:12:46,376 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-08 12:12:46,376 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-08 12:12:46,376 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3_true-termination_true-no-overflow.c_Iteration2_Loop [2018-12-08 12:12:46,376 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-08 12:12:46,376 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-08 12:12:46,377 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 12:12:46,381 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 12:12:46,382 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 12:12:46,386 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 12:12:46,407 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-08 12:12:46,408 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-08 12:12:46,408 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-08 12:12:46,409 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 12:12:46,409 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 12:12:46,409 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 12:12:46,409 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 12:12:46,410 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-08 12:12:46,410 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-08 12:12:46,412 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 12:12:46,412 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-08 12:12:46,413 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 12:12:46,413 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 12:12:46,413 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 12:12:46,413 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 12:12:46,414 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-08 12:12:46,414 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-08 12:12:46,417 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 12:12:46,418 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-08 12:12:46,418 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 12:12:46,418 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-08 12:12:46,418 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 12:12:46,418 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 12:12:46,418 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 12:12:46,419 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-08 12:12:46,419 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-08 12:12:46,421 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-08 12:12:46,423 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-08 12:12:46,423 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-12-08 12:12:46,424 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-08 12:12:46,424 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-08 12:12:46,424 INFO L518 LassoAnalysis]: Proved termination. [2018-12-08 12:12:46,424 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0, ULTIMATE.start_main_~m~0) = -1*ULTIMATE.start_main_~j~0 + 1*ULTIMATE.start_main_~m~0 Supporting invariants [] [2018-12-08 12:12:46,424 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-08 12:12:46,437 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 12:12:46,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 12:12:46,442 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 12:12:46,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 12:12:46,445 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 12:12:46,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 12:12:46,445 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-12-08 12:12:46,446 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5 Second operand 3 states. [2018-12-08 12:12:46,452 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 12 states and 17 transitions. Complement of second has 5 states. [2018-12-08 12:12:46,452 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 [2018-12-08 12:12:46,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-08 12:12:46,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2018-12-08 12:12:46,453 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 2 letters. [2018-12-08 12:12:46,453 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 12:12:46,453 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 6 letters. Loop has 2 letters. [2018-12-08 12:12:46,454 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 12:12:46,454 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 4 letters. [2018-12-08 12:12:46,454 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 12:12:46,454 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 17 transitions. [2018-12-08 12:12:46,454 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-12-08 12:12:46,455 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 12 states and 17 transitions. [2018-12-08 12:12:46,455 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2018-12-08 12:12:46,455 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2018-12-08 12:12:46,455 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 17 transitions. [2018-12-08 12:12:46,455 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-08 12:12:46,455 INFO L705 BuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2018-12-08 12:12:46,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 17 transitions. [2018-12-08 12:12:46,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-12-08 12:12:46,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-12-08 12:12:46,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 17 transitions. [2018-12-08 12:12:46,456 INFO L728 BuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2018-12-08 12:12:46,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 12:12:46,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 12:12:46,459 INFO L87 Difference]: Start difference. First operand 12 states and 17 transitions. Second operand 3 states. [2018-12-08 12:12:46,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 12:12:46,466 INFO L93 Difference]: Finished difference Result 14 states and 18 transitions. [2018-12-08 12:12:46,466 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 12:12:46,466 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 18 transitions. [2018-12-08 12:12:46,467 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-12-08 12:12:46,467 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 13 states and 17 transitions. [2018-12-08 12:12:46,467 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2018-12-08 12:12:46,467 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2018-12-08 12:12:46,468 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 17 transitions. [2018-12-08 12:12:46,468 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-08 12:12:46,468 INFO L705 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2018-12-08 12:12:46,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 17 transitions. [2018-12-08 12:12:46,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2018-12-08 12:12:46,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-12-08 12:12:46,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 16 transitions. [2018-12-08 12:12:46,469 INFO L728 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2018-12-08 12:12:46,469 INFO L608 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2018-12-08 12:12:46,469 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-12-08 12:12:46,469 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 16 transitions. [2018-12-08 12:12:46,470 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-12-08 12:12:46,470 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-08 12:12:46,470 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-08 12:12:46,470 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1] [2018-12-08 12:12:46,470 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-08 12:12:46,470 INFO L794 eck$LassoCheckResult]: Stem: 159#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0, main_~m~0, main_~n~0;havoc main_~i~0;havoc main_~j~0;havoc main_~m~0;havoc main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~m~0 := main_#t~nondet1;havoc main_#t~nondet1; 160#L17 assume main_~m~0 > 0 && main_~n~0 > main_~m~0;main_~i~0 := 0;main_~j~0 := 0; 161#L21-2 assume !!(main_~i~0 < main_~n~0); 157#L21 assume main_~j~0 < main_~m~0;main_~j~0 := 1 + main_~j~0; 158#L21-2 assume !!(main_~i~0 < main_~n~0); 155#L21 assume !(main_~j~0 < main_~m~0);main_~j~0 := 0;main_~i~0 := 1 + main_~i~0; 156#L21-2 assume !!(main_~i~0 < main_~n~0); 164#L21 assume !(main_~j~0 < main_~m~0);main_~j~0 := 0;main_~i~0 := 1 + main_~i~0; 162#L21-2 [2018-12-08 12:12:46,470 INFO L796 eck$LassoCheckResult]: Loop: 162#L21-2 assume !!(main_~i~0 < main_~n~0); 163#L21 assume main_~j~0 < main_~m~0;main_~j~0 := 1 + main_~j~0; 162#L21-2 [2018-12-08 12:12:46,471 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 12:12:46,471 INFO L82 PathProgramCache]: Analyzing trace with hash -422236399, now seen corresponding path program 1 times [2018-12-08 12:12:46,471 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 12:12:46,471 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 12:12:46,472 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 12:12:46,472 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 12:12:46,472 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 12:12:46,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 12:12:46,486 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-08 12:12:46,486 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 12:12:46,486 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5161536d-ae16-4754-aa68-32f064db982e/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 [2018-12-08 12:12:46,495 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 12:12:46,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 12:12:46,500 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 12:12:46,519 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-08 12:12:46,542 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-08 12:12:46,542 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2018-12-08 12:12:46,542 INFO L799 eck$LassoCheckResult]: stem already infeasible [2018-12-08 12:12:46,543 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 12:12:46,543 INFO L82 PathProgramCache]: Analyzing trace with hash 1380, now seen corresponding path program 3 times [2018-12-08 12:12:46,543 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 12:12:46,543 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 12:12:46,544 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 12:12:46,544 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 12:12:46,544 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 12:12:46,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 12:12:46,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 12:12:46,561 INFO L216 LassoAnalysis]: Preferences: [2018-12-08 12:12:46,561 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-08 12:12:46,561 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-08 12:12:46,561 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-08 12:12:46,561 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-08 12:12:46,561 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 12:12:46,561 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-08 12:12:46,561 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-08 12:12:46,561 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3_true-termination_true-no-overflow.c_Iteration3_Loop [2018-12-08 12:12:46,562 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-08 12:12:46,562 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-08 12:12:46,563 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 12:12:46,566 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 12:12:46,568 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 12:12:46,570 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 12:12:46,590 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-08 12:12:46,590 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5161536d-ae16-4754-aa68-32f064db982e/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 [2018-12-08 12:12:46,591 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 12:12:46,591 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5161536d-ae16-4754-aa68-32f064db982e/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 [2018-12-08 12:12:46,608 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-08 12:12:46,608 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 12:12:46,729 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-08 12:12:46,730 INFO L216 LassoAnalysis]: Preferences: [2018-12-08 12:12:46,730 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-08 12:12:46,730 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-08 12:12:46,730 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-08 12:12:46,730 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-08 12:12:46,730 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 12:12:46,730 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-08 12:12:46,730 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-08 12:12:46,731 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3_true-termination_true-no-overflow.c_Iteration3_Loop [2018-12-08 12:12:46,731 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-08 12:12:46,731 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-08 12:12:46,732 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 12:12:46,736 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 12:12:46,737 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 12:12:46,738 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 12:12:46,765 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-08 12:12:46,765 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-08 12:12:46,765 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-08 12:12:46,766 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 12:12:46,766 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-08 12:12:46,766 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 12:12:46,766 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 12:12:46,766 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 12:12:46,767 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-08 12:12:46,767 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-08 12:12:46,769 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-08 12:12:46,772 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-12-08 12:12:46,773 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-12-08 12:12:46,773 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-08 12:12:46,773 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-08 12:12:46,773 INFO L518 LassoAnalysis]: Proved termination. [2018-12-08 12:12:46,773 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0, ULTIMATE.start_main_~m~0) = -1*ULTIMATE.start_main_~j~0 + 1*ULTIMATE.start_main_~m~0 Supporting invariants [] [2018-12-08 12:12:46,774 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-08 12:12:46,782 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 12:12:46,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 12:12:46,787 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 12:12:46,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 12:12:46,790 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 12:12:46,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 12:12:46,791 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-12-08 12:12:46,791 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7 Second operand 3 states. [2018-12-08 12:12:46,796 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7. Second operand 3 states. Result 14 states and 20 transitions. Complement of second has 5 states. [2018-12-08 12:12:46,796 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 [2018-12-08 12:12:46,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-08 12:12:46,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2018-12-08 12:12:46,796 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 8 letters. Loop has 2 letters. [2018-12-08 12:12:46,796 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 12:12:46,796 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-12-08 12:12:46,811 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 12:12:46,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 12:12:46,816 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 12:12:46,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 12:12:46,818 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 12:12:46,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 12:12:46,819 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 [2018-12-08 12:12:46,819 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7 Second operand 3 states. [2018-12-08 12:12:46,823 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7. Second operand 3 states. Result 14 states and 20 transitions. Complement of second has 5 states. [2018-12-08 12:12:46,823 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 [2018-12-08 12:12:46,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-08 12:12:46,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2018-12-08 12:12:46,824 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 8 letters. Loop has 2 letters. [2018-12-08 12:12:46,824 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 12:12:46,824 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-12-08 12:12:46,833 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 12:12:46,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 12:12:46,838 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 12:12:46,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 12:12:46,840 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 12:12:46,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 12:12:46,841 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 [2018-12-08 12:12:46,841 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7 Second operand 3 states. [2018-12-08 12:12:46,845 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7. Second operand 3 states. Result 16 states and 23 transitions. Complement of second has 4 states. [2018-12-08 12:12:46,846 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 [2018-12-08 12:12:46,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-08 12:12:46,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2018-12-08 12:12:46,846 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 8 letters. Loop has 2 letters. [2018-12-08 12:12:46,847 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 12:12:46,847 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 10 letters. Loop has 2 letters. [2018-12-08 12:12:46,847 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 12:12:46,847 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 8 letters. Loop has 4 letters. [2018-12-08 12:12:46,847 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 12:12:46,847 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 23 transitions. [2018-12-08 12:12:46,848 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-12-08 12:12:46,849 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 14 states and 19 transitions. [2018-12-08 12:12:46,849 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2018-12-08 12:12:46,849 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2018-12-08 12:12:46,849 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 19 transitions. [2018-12-08 12:12:46,849 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-08 12:12:46,849 INFO L705 BuchiCegarLoop]: Abstraction has 14 states and 19 transitions. [2018-12-08 12:12:46,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 19 transitions. [2018-12-08 12:12:46,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 7. [2018-12-08 12:12:46,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-12-08 12:12:46,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2018-12-08 12:12:46,850 INFO L728 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2018-12-08 12:12:46,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-08 12:12:46,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-08 12:12:46,851 INFO L87 Difference]: Start difference. First operand 7 states and 9 transitions. Second operand 5 states. [2018-12-08 12:12:46,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 12:12:46,857 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2018-12-08 12:12:46,858 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-08 12:12:46,858 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 10 transitions. [2018-12-08 12:12:46,858 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2018-12-08 12:12:46,858 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 8 states and 9 transitions. [2018-12-08 12:12:46,858 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2018-12-08 12:12:46,858 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2018-12-08 12:12:46,858 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 9 transitions. [2018-12-08 12:12:46,859 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-08 12:12:46,859 INFO L705 BuchiCegarLoop]: Abstraction has 8 states and 9 transitions. [2018-12-08 12:12:46,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 9 transitions. [2018-12-08 12:12:46,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 6. [2018-12-08 12:12:46,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-12-08 12:12:46,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 7 transitions. [2018-12-08 12:12:46,859 INFO L728 BuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2018-12-08 12:12:46,859 INFO L608 BuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2018-12-08 12:12:46,859 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-12-08 12:12:46,859 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 7 transitions. [2018-12-08 12:12:46,860 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-12-08 12:12:46,860 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-08 12:12:46,860 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-08 12:12:46,860 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-12-08 12:12:46,860 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1] [2018-12-08 12:12:46,860 INFO L794 eck$LassoCheckResult]: Stem: 372#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0, main_~m~0, main_~n~0;havoc main_~i~0;havoc main_~j~0;havoc main_~m~0;havoc main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~m~0 := main_#t~nondet1;havoc main_#t~nondet1; 373#L17 assume main_~m~0 > 0 && main_~n~0 > main_~m~0;main_~i~0 := 0;main_~j~0 := 0; 369#L21-2 [2018-12-08 12:12:46,860 INFO L796 eck$LassoCheckResult]: Loop: 369#L21-2 assume !!(main_~i~0 < main_~n~0); 370#L21 assume main_~j~0 < main_~m~0;main_~j~0 := 1 + main_~j~0; 371#L21-2 assume !!(main_~i~0 < main_~n~0); 368#L21 assume !(main_~j~0 < main_~m~0);main_~j~0 := 0;main_~i~0 := 1 + main_~i~0; 369#L21-2 [2018-12-08 12:12:46,860 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 12:12:46,860 INFO L82 PathProgramCache]: Analyzing trace with hash 996, now seen corresponding path program 2 times [2018-12-08 12:12:46,860 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 12:12:46,861 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 12:12:46,861 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 12:12:46,862 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 12:12:46,862 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 12:12:46,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 12:12:46,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 12:12:46,865 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 12:12:46,865 INFO L82 PathProgramCache]: Analyzing trace with hash 1326601, now seen corresponding path program 1 times [2018-12-08 12:12:46,865 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 12:12:46,865 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 12:12:46,866 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 12:12:46,866 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 12:12:46,866 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 12:12:46,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 12:12:46,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 12:12:46,869 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 12:12:46,869 INFO L82 PathProgramCache]: Analyzing trace with hash 920229996, now seen corresponding path program 2 times [2018-12-08 12:12:46,869 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 12:12:46,869 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 12:12:46,870 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 12:12:46,870 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 12:12:46,870 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 12:12:46,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 12:12:46,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 12:12:46,891 INFO L216 LassoAnalysis]: Preferences: [2018-12-08 12:12:46,891 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-08 12:12:46,891 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-08 12:12:46,891 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-08 12:12:46,891 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-08 12:12:46,892 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 12:12:46,892 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-08 12:12:46,892 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-08 12:12:46,892 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3_true-termination_true-no-overflow.c_Iteration4_Loop [2018-12-08 12:12:46,892 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-08 12:12:46,892 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-08 12:12:46,893 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 12:12:46,897 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 12:12:46,898 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 12:12:46,900 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 12:12:46,939 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-08 12:12:46,939 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5161536d-ae16-4754-aa68-32f064db982e/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 [2018-12-08 12:12:46,941 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 12:12:46,942 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5161536d-ae16-4754-aa68-32f064db982e/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 [2018-12-08 12:12:46,958 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-08 12:12:46,958 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 12:12:47,050 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-08 12:12:47,051 INFO L216 LassoAnalysis]: Preferences: [2018-12-08 12:12:47,052 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-08 12:12:47,052 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-08 12:12:47,052 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-08 12:12:47,052 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-08 12:12:47,052 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 12:12:47,052 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-08 12:12:47,052 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-08 12:12:47,052 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3_true-termination_true-no-overflow.c_Iteration4_Loop [2018-12-08 12:12:47,052 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-08 12:12:47,052 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-08 12:12:47,053 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 12:12:47,057 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 12:12:47,059 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 12:12:47,060 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 12:12:47,092 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-08 12:12:47,092 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-08 12:12:47,093 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-08 12:12:47,093 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 12:12:47,094 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-08 12:12:47,094 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 12:12:47,094 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 12:12:47,094 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 12:12:47,094 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-08 12:12:47,094 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-08 12:12:47,096 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-08 12:12:47,099 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-12-08 12:12:47,099 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-12-08 12:12:47,099 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-08 12:12:47,099 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-08 12:12:47,099 INFO L518 LassoAnalysis]: Proved termination. [2018-12-08 12:12:47,099 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~n~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2018-12-08 12:12:47,100 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-08 12:12:47,113 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 12:12:47,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 12:12:47,116 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 12:12:47,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 12:12:47,118 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 12:12:47,127 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-08 12:12:47,127 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 [2018-12-08 12:12:47,127 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 7 transitions. cyclomatic complexity: 2 Second operand 3 states. [2018-12-08 12:12:47,132 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 7 transitions. cyclomatic complexity: 2. Second operand 3 states. Result 11 states and 14 transitions. Complement of second has 4 states. [2018-12-08 12:12:47,133 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 [2018-12-08 12:12:47,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-08 12:12:47,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2018-12-08 12:12:47,133 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 2 letters. Loop has 4 letters. [2018-12-08 12:12:47,133 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 12:12:47,133 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 6 letters. Loop has 4 letters. [2018-12-08 12:12:47,133 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 12:12:47,134 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 2 letters. Loop has 8 letters. [2018-12-08 12:12:47,134 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 12:12:47,134 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 14 transitions. [2018-12-08 12:12:47,134 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-08 12:12:47,134 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2018-12-08 12:12:47,135 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-12-08 12:12:47,135 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-12-08 12:12:47,135 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-12-08 12:12:47,135 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-08 12:12:47,135 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-08 12:12:47,135 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-08 12:12:47,135 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-08 12:12:47,135 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-12-08 12:12:47,135 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-12-08 12:12:47,135 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-08 12:12:47,135 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-12-08 12:12:47,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 08.12 12:12:47 BoogieIcfgContainer [2018-12-08 12:12:47,147 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-12-08 12:12:47,147 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 12:12:47,147 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 12:12:47,147 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 12:12:47,147 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 12:12:45" (3/4) ... [2018-12-08 12:12:47,150 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-08 12:12:47,150 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 12:12:47,150 INFO L168 Benchmark]: Toolchain (without parser) took 1934.91 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.9 MB). Free memory was 956.0 MB in the beginning and 1.1 GB in the end (delta: -141.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 12:12:47,151 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 12:12:47,151 INFO L168 Benchmark]: CACSL2BoogieTranslator took 114.41 ms. Allocated memory is still 1.0 GB. Free memory was 956.0 MB in the beginning and 945.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-08 12:12:47,152 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.92 ms. Allocated memory is still 1.0 GB. Free memory is still 945.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 12:12:47,152 INFO L168 Benchmark]: Boogie Preprocessor took 10.37 ms. Allocated memory is still 1.0 GB. Free memory was 945.3 MB in the beginning and 939.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-08 12:12:47,152 INFO L168 Benchmark]: RCFGBuilder took 135.53 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.9 MB). Free memory was 939.9 MB in the beginning and 1.1 GB in the end (delta: -152.3 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. [2018-12-08 12:12:47,152 INFO L168 Benchmark]: BuchiAutomizer took 1651.41 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -5.2 MB). Peak memory consumption was 258.6 MB. Max. memory is 11.5 GB. [2018-12-08 12:12:47,153 INFO L168 Benchmark]: Witness Printer took 2.91 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 12:12:47,154 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 114.41 ms. Allocated memory is still 1.0 GB. Free memory was 956.0 MB in the beginning and 945.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 17.92 ms. Allocated memory is still 1.0 GB. Free memory is still 945.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.37 ms. Allocated memory is still 1.0 GB. Free memory was 945.3 MB in the beginning and 939.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 135.53 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.9 MB). Free memory was 939.9 MB in the beginning and 1.1 GB in the end (delta: -152.3 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1651.41 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -5.2 MB). Peak memory consumption was 258.6 MB. Max. memory is 11.5 GB. * Witness Printer took 2.91 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. 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 (2 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -1 * j + m and consists of 4 locations. One deterministic module has affine ranking function -1 * j + m and consists of 3 locations. One deterministic module has affine ranking function n + -1 * i and consists of 3 locations. One nondeterministic module has affine ranking function -1 * j + m and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.6s and 5 iterations. TraceHistogramMax:3. Analysis of lassos took 1.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 10 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 12 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 2/2 HoareTripleCheckerStatistics: 45 SDtfs, 36 SDslu, 11 SDs, 0 SdLazy, 33 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT2 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax183 hnf100 lsp39 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq152 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 5ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...