./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi2_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_3b7745a8-cbab-4247-9313-513bee84abff/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_3b7745a8-cbab-4247-9313-513bee84abff/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_3b7745a8-cbab-4247-9313-513bee84abff/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_3b7745a8-cbab-4247-9313-513bee84abff/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi2_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_3b7745a8-cbab-4247-9313-513bee84abff/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_3b7745a8-cbab-4247-9313-513bee84abff/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 e334e85dd18553afecc96b27cf49a003304cbca8 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 12:20:06,932 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 12:20:06,934 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 12:20:06,942 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 12:20:06,943 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 12:20:06,944 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 12:20:06,945 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 12:20:06,946 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 12:20:06,948 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 12:20:06,948 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 12:20:06,949 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 12:20:06,949 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 12:20:06,950 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 12:20:06,951 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 12:20:06,952 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 12:20:06,953 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 12:20:06,953 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 12:20:06,955 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 12:20:06,956 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 12:20:06,958 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 12:20:06,959 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 12:20:06,960 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 12:20:06,962 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 12:20:06,962 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 12:20:06,962 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 12:20:06,963 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 12:20:06,963 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 12:20:06,964 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 12:20:06,965 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 12:20:06,966 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 12:20:06,966 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 12:20:06,966 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 12:20:06,966 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 12:20:06,966 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 12:20:06,967 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 12:20:06,967 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 12:20:06,968 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_3b7745a8-cbab-4247-9313-513bee84abff/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-23 12:20:06,977 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 12:20:06,977 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 12:20:06,978 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 12:20:06,978 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 12:20:06,978 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 12:20:06,979 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-23 12:20:06,979 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-23 12:20:06,979 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-23 12:20:06,979 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-23 12:20:06,979 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-23 12:20:06,979 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-23 12:20:06,979 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 12:20:06,980 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-23 12:20:06,980 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 12:20:06,980 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 12:20:06,980 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-23 12:20:06,980 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-23 12:20:06,980 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-23 12:20:06,980 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 12:20:06,981 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-23 12:20:06,981 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 12:20:06,981 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-23 12:20:06,981 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 12:20:06,981 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 12:20:06,981 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-23 12:20:06,982 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 12:20:06,982 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 12:20:06,982 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-23 12:20:06,983 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-23 12:20:06,983 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_3b7745a8-cbab-4247-9313-513bee84abff/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 -> e334e85dd18553afecc96b27cf49a003304cbca8 [2018-11-23 12:20:07,009 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 12:20:07,018 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 12:20:07,020 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 12:20:07,022 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 12:20:07,022 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 12:20:07,022 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_3b7745a8-cbab-4247-9313-513bee84abff/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi2_true-termination_true-no-overflow.c [2018-11-23 12:20:07,062 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3b7745a8-cbab-4247-9313-513bee84abff/bin-2019/uautomizer/data/06ce8aa63/099868e469944cc5b65cc03cb73d78f0/FLAGed852750c [2018-11-23 12:20:07,376 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 12:20:07,376 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_3b7745a8-cbab-4247-9313-513bee84abff/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi2_true-termination_true-no-overflow.c [2018-11-23 12:20:07,381 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3b7745a8-cbab-4247-9313-513bee84abff/bin-2019/uautomizer/data/06ce8aa63/099868e469944cc5b65cc03cb73d78f0/FLAGed852750c [2018-11-23 12:20:07,393 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_3b7745a8-cbab-4247-9313-513bee84abff/bin-2019/uautomizer/data/06ce8aa63/099868e469944cc5b65cc03cb73d78f0 [2018-11-23 12:20:07,396 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 12:20:07,397 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 12:20:07,397 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 12:20:07,398 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 12:20:07,400 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 12:20:07,401 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:20:07" (1/1) ... [2018-11-23 12:20:07,403 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@663897e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:20:07, skipping insertion in model container [2018-11-23 12:20:07,403 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:20:07" (1/1) ... [2018-11-23 12:20:07,410 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 12:20:07,422 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 12:20:07,543 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 12:20:07,546 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 12:20:07,556 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 12:20:07,564 INFO L195 MainTranslator]: Completed translation [2018-11-23 12:20:07,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:20:07 WrapperNode [2018-11-23 12:20:07,565 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 12:20:07,565 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 12:20:07,565 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 12:20:07,565 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 12:20:07,571 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:20:07" (1/1) ... [2018-11-23 12:20:07,574 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:20:07" (1/1) ... [2018-11-23 12:20:07,585 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 12:20:07,585 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 12:20:07,586 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 12:20:07,586 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 12:20:07,591 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:20:07" (1/1) ... [2018-11-23 12:20:07,592 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:20:07" (1/1) ... [2018-11-23 12:20:07,592 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:20:07" (1/1) ... [2018-11-23 12:20:07,592 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:20:07" (1/1) ... [2018-11-23 12:20:07,593 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:20:07" (1/1) ... [2018-11-23 12:20:07,596 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:20:07" (1/1) ... [2018-11-23 12:20:07,597 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:20:07" (1/1) ... [2018-11-23 12:20:07,597 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 12:20:07,598 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 12:20:07,598 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 12:20:07,598 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 12:20:07,598 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:20:07" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3b7745a8-cbab-4247-9313-513bee84abff/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 12:20:07,683 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 12:20:07,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 12:20:07,785 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 12:20:07,785 INFO L280 CfgBuilder]: Removed 5 assue(true) statements. [2018-11-23 12:20:07,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:20:07 BoogieIcfgContainer [2018-11-23 12:20:07,786 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 12:20:07,786 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-23 12:20:07,786 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-23 12:20:07,788 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-23 12:20:07,789 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 12:20:07,789 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.11 12:20:07" (1/3) ... [2018-11-23 12:20:07,790 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@44caf19b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 12:20:07, skipping insertion in model container [2018-11-23 12:20:07,790 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 12:20:07,790 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:20:07" (2/3) ... [2018-11-23 12:20:07,790 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@44caf19b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 12:20:07, skipping insertion in model container [2018-11-23 12:20:07,790 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 12:20:07,790 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:20:07" (3/3) ... [2018-11-23 12:20:07,792 INFO L375 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-speedpldi2_true-termination_true-no-overflow.c [2018-11-23 12:20:07,829 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 12:20:07,829 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-23 12:20:07,829 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-23 12:20:07,829 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-23 12:20:07,829 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 12:20:07,829 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 12:20:07,830 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-23 12:20:07,830 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 12:20:07,830 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-23 12:20:07,838 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2018-11-23 12:20:07,854 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-23 12:20:07,854 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 12:20:07,854 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 12:20:07,858 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-23 12:20:07,858 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-23 12:20:07,858 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-23 12:20:07,858 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2018-11-23 12:20:07,859 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-23 12:20:07,859 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 12:20:07,859 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 12:20:07,860 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-23 12:20:07,860 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-23 12:20:07,867 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~m~0, main_~n~0, main_~v1~0, main_~v2~0;havoc main_~m~0;havoc main_~n~0;havoc main_~v1~0;havoc main_~v2~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~m~0 := main_#t~nondet1;havoc main_#t~nondet1; 6#L17true assume main_~n~0 >= 0 && main_~m~0 > 0;main_~v1~0 := main_~n~0;main_~v2~0 := 0; 9#L21-2true [2018-11-23 12:20:07,867 INFO L796 eck$LassoCheckResult]: Loop: 9#L21-2true assume !!(main_~v1~0 > 0); 3#L21true assume main_~v2~0 < main_~m~0;main_~v2~0 := 1 + main_~v2~0;main_~v1~0 := main_~v1~0 - 1; 9#L21-2true [2018-11-23 12:20:07,872 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:20:07,872 INFO L82 PathProgramCache]: Analyzing trace with hash 996, now seen corresponding path program 1 times [2018-11-23 12:20:07,874 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 12:20:07,874 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 12:20:07,919 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:20:07,919 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:20:07,919 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:20:07,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 12:20:07,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 12:20:07,948 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:20:07,948 INFO L82 PathProgramCache]: Analyzing trace with hash 1380, now seen corresponding path program 1 times [2018-11-23 12:20:07,948 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 12:20:07,949 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 12:20:07,949 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:20:07,950 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:20:07,950 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:20:07,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 12:20:07,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 12:20:07,957 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:20:07,957 INFO L82 PathProgramCache]: Analyzing trace with hash 957575, now seen corresponding path program 1 times [2018-11-23 12:20:07,957 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 12:20:07,958 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 12:20:07,959 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:20:07,959 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:20:07,959 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:20:07,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 12:20:07,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 12:20:08,016 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 12:20:08,017 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 12:20:08,017 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 12:20:08,017 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 12:20:08,017 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 12:20:08,017 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 12:20:08,017 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 12:20:08,017 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 12:20:08,017 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi2_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-23 12:20:08,017 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 12:20:08,018 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 12:20:08,036 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 12:20:08,059 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 12:20:08,062 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 12:20:08,065 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 12:20:08,150 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 12:20:08,151 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3b7745a8-cbab-4247-9313-513bee84abff/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 12:20:08,163 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 12:20:08,164 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3b7745a8-cbab-4247-9313-513bee84abff/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 12:20:08,186 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 12:20:08,186 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 12:20:08,281 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-23 12:20:08,282 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 12:20:08,282 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 12:20:08,282 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 12:20:08,283 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 12:20:08,283 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 12:20:08,283 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 12:20:08,283 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 12:20:08,283 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 12:20:08,283 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi2_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-23 12:20:08,283 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 12:20:08,283 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 12:20:08,284 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 12:20:08,299 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 12:20:08,302 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 12:20:08,304 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 12:20:08,356 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 12:20:08,359 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 12:20:08,360 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 12:20:08,361 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 12:20:08,361 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 12:20:08,362 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 12:20:08,362 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 12:20:08,362 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 12:20:08,363 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 12:20:08,363 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 12:20:08,367 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 12:20:08,372 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-23 12:20:08,373 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-23 12:20:08,374 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 12:20:08,374 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-23 12:20:08,375 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 12:20:08,375 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~v2~0, ULTIMATE.start_main_~m~0) = -1*ULTIMATE.start_main_~v2~0 + 1*ULTIMATE.start_main_~m~0 Supporting invariants [] [2018-11-23 12:20:08,376 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-23 12:20:08,395 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:20:08,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:20:08,403 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 12:20:08,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:20:08,411 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 12:20:08,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 12:20:08,428 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-11-23 12:20:08,429 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states. Second operand 3 states. [2018-11-23 12:20:08,461 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. [2018-11-23 12:20:08,462 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-23 12:20:08,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 12:20:08,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2018-11-23 12:20:08,465 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 2 letters. Loop has 2 letters. [2018-11-23 12:20:08,466 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 12:20:08,466 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 4 letters. Loop has 2 letters. [2018-11-23 12:20:08,466 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 12:20:08,467 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 2 letters. Loop has 4 letters. [2018-11-23 12:20:08,467 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 12:20:08,468 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 35 transitions. [2018-11-23 12:20:08,470 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-23 12:20:08,473 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 8 states and 11 transitions. [2018-11-23 12:20:08,474 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2018-11-23 12:20:08,474 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2018-11-23 12:20:08,474 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2018-11-23 12:20:08,475 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 12:20:08,475 INFO L705 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2018-11-23 12:20:08,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2018-11-23 12:20:08,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2018-11-23 12:20:08,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2018-11-23 12:20:08,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2018-11-23 12:20:08,494 INFO L728 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2018-11-23 12:20:08,494 INFO L608 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2018-11-23 12:20:08,494 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-23 12:20:08,494 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 11 transitions. [2018-11-23 12:20:08,494 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-23 12:20:08,494 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 12:20:08,494 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 12:20:08,494 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-11-23 12:20:08,495 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-23 12:20:08,495 INFO L794 eck$LassoCheckResult]: Stem: 76#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~m~0, main_~n~0, main_~v1~0, main_~v2~0;havoc main_~m~0;havoc main_~n~0;havoc main_~v1~0;havoc main_~v2~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~m~0 := main_#t~nondet1;havoc main_#t~nondet1; 77#L17 assume main_~n~0 >= 0 && main_~m~0 > 0;main_~v1~0 := main_~n~0;main_~v2~0 := 0; 78#L21-2 assume !!(main_~v1~0 > 0); 72#L21 assume !(main_~v2~0 < main_~m~0);main_~v2~0 := 0; 73#L21-2 [2018-11-23 12:20:08,495 INFO L796 eck$LassoCheckResult]: Loop: 73#L21-2 assume !!(main_~v1~0 > 0); 79#L21 assume main_~v2~0 < main_~m~0;main_~v2~0 := 1 + main_~v2~0;main_~v1~0 := main_~v1~0 - 1; 73#L21-2 [2018-11-23 12:20:08,495 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:20:08,495 INFO L82 PathProgramCache]: Analyzing trace with hash 957577, now seen corresponding path program 1 times [2018-11-23 12:20:08,495 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 12:20:08,495 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 12:20:08,496 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:20:08,497 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:20:08,497 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:20:08,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:20:08,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 12:20:08,521 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 12:20:08,521 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 12:20:08,523 INFO L799 eck$LassoCheckResult]: stem already infeasible [2018-11-23 12:20:08,523 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:20:08,523 INFO L82 PathProgramCache]: Analyzing trace with hash 1380, now seen corresponding path program 2 times [2018-11-23 12:20:08,523 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 12:20:08,523 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 12:20:08,525 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:20:08,525 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:20:08,525 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:20:08,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 12:20:08,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 12:20:08,548 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 12:20:08,548 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 12:20:08,548 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 12:20:08,548 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 12:20:08,548 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 12:20:08,548 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 12:20:08,548 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 12:20:08,548 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 12:20:08,548 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi2_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-23 12:20:08,548 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 12:20:08,548 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 12:20:08,549 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 12:20:08,551 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 12:20:08,556 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 12:20:08,558 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 12:20:08,611 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 12:20:08,611 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3b7745a8-cbab-4247-9313-513bee84abff/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 12:20:08,613 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 12:20:08,614 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 12:20:08,641 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 12:20:08,641 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_3b7745a8-cbab-4247-9313-513bee84abff/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 12:20:08,644 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 12:20:08,644 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3b7745a8-cbab-4247-9313-513bee84abff/bin-2019/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 12:20:08,662 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 12:20:08,662 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 12:20:08,680 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-23 12:20:08,681 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 12:20:08,681 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 12:20:08,681 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 12:20:08,681 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 12:20:08,681 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 12:20:08,681 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 12:20:08,681 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 12:20:08,681 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 12:20:08,681 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi2_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-23 12:20:08,682 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 12:20:08,682 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 12:20:08,683 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 12:20:08,691 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 12:20:08,693 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 12:20:08,696 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 12:20:08,767 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 12:20:08,767 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 12:20:08,767 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 12:20:08,769 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 12:20:08,770 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 12:20:08,770 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 12:20:08,770 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 12:20:08,770 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 12:20:08,771 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 12:20:08,771 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 12:20:08,777 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 12:20:08,781 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-23 12:20:08,781 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-23 12:20:08,781 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 12:20:08,782 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-23 12:20:08,782 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 12:20:08,782 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~v1~0) = 1*ULTIMATE.start_main_~v1~0 Supporting invariants [] [2018-11-23 12:20:08,782 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-23 12:20:08,800 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:20:08,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:20:08,807 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 12:20:08,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:20:08,814 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 12:20:08,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 12:20:08,825 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-23 12:20:08,825 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5 Second operand 3 states. [2018-11-23 12:20:08,839 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 13 states and 18 transitions. Complement of second has 4 states. [2018-11-23 12:20:08,839 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-23 12:20:08,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 12:20:08,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2018-11-23 12:20:08,840 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 4 letters. Loop has 2 letters. [2018-11-23 12:20:08,840 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 12:20:08,840 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 6 letters. Loop has 2 letters. [2018-11-23 12:20:08,841 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 12:20:08,841 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 4 letters. Loop has 4 letters. [2018-11-23 12:20:08,841 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 12:20:08,841 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 18 transitions. [2018-11-23 12:20:08,841 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-23 12:20:08,842 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 13 states and 18 transitions. [2018-11-23 12:20:08,842 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2018-11-23 12:20:08,842 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2018-11-23 12:20:08,842 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 18 transitions. [2018-11-23 12:20:08,843 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 12:20:08,843 INFO L705 BuchiCegarLoop]: Abstraction has 13 states and 18 transitions. [2018-11-23 12:20:08,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 18 transitions. [2018-11-23 12:20:08,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2018-11-23 12:20:08,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-11-23 12:20:08,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 17 transitions. [2018-11-23 12:20:08,845 INFO L728 BuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2018-11-23 12:20:08,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 12:20:08,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 12:20:08,848 INFO L87 Difference]: Start difference. First operand 12 states and 17 transitions. Second operand 3 states. [2018-11-23 12:20:08,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:20:08,856 INFO L93 Difference]: Finished difference Result 14 states and 18 transitions. [2018-11-23 12:20:08,856 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 12:20:08,856 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 18 transitions. [2018-11-23 12:20:08,857 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-23 12:20:08,857 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 13 states and 17 transitions. [2018-11-23 12:20:08,857 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2018-11-23 12:20:08,857 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2018-11-23 12:20:08,857 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 17 transitions. [2018-11-23 12:20:08,858 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 12:20:08,858 INFO L705 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2018-11-23 12:20:08,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 17 transitions. [2018-11-23 12:20:08,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2018-11-23 12:20:08,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-11-23 12:20:08,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 16 transitions. [2018-11-23 12:20:08,860 INFO L728 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2018-11-23 12:20:08,860 INFO L608 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2018-11-23 12:20:08,860 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-23 12:20:08,860 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 16 transitions. [2018-11-23 12:20:08,860 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-23 12:20:08,861 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 12:20:08,861 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 12:20:08,861 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [3, 1, 1, 1, 1] [2018-11-23 12:20:08,861 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-23 12:20:08,861 INFO L794 eck$LassoCheckResult]: Stem: 160#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~m~0, main_~n~0, main_~v1~0, main_~v2~0;havoc main_~m~0;havoc main_~n~0;havoc main_~v1~0;havoc main_~v2~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~m~0 := main_#t~nondet1;havoc main_#t~nondet1; 161#L17 assume main_~n~0 >= 0 && main_~m~0 > 0;main_~v1~0 := main_~n~0;main_~v2~0 := 0; 162#L21-2 assume !!(main_~v1~0 > 0); 158#L21 assume main_~v2~0 < main_~m~0;main_~v2~0 := 1 + main_~v2~0;main_~v1~0 := main_~v1~0 - 1; 159#L21-2 assume !!(main_~v1~0 > 0); 165#L21 assume !(main_~v2~0 < main_~m~0);main_~v2~0 := 0; 166#L21-2 assume !!(main_~v1~0 > 0); 156#L21 [2018-11-23 12:20:08,861 INFO L796 eck$LassoCheckResult]: Loop: 156#L21 assume !(main_~v2~0 < main_~m~0);main_~v2~0 := 0; 157#L21-2 assume !!(main_~v1~0 > 0); 156#L21 [2018-11-23 12:20:08,862 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:20:08,862 INFO L82 PathProgramCache]: Analyzing trace with hash -1537641183, now seen corresponding path program 1 times [2018-11-23 12:20:08,862 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 12:20:08,862 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 12:20:08,863 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:20:08,863 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 12:20:08,863 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:20:08,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 12:20:08,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 12:20:08,872 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:20:08,872 INFO L82 PathProgramCache]: Analyzing trace with hash 1532, now seen corresponding path program 1 times [2018-11-23 12:20:08,872 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 12:20:08,872 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 12:20:08,873 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:20:08,873 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:20:08,874 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:20:08,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 12:20:08,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 12:20:08,878 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:20:08,879 INFO L82 PathProgramCache]: Analyzing trace with hash -204426468, now seen corresponding path program 2 times [2018-11-23 12:20:08,879 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 12:20:08,879 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 12:20:08,880 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:20:08,880 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:20:08,880 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:20:08,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:20:08,910 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-23 12:20:08,910 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 12:20:08,911 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3b7745a8-cbab-4247-9313-513bee84abff/bin-2019/uautomizer/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 12:20:08,919 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-23 12:20:08,926 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-23 12:20:08,926 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 12:20:08,927 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 12:20:08,952 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-23 12:20:08,967 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 12:20:08,967 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2018-11-23 12:20:08,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 12:20:08,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-23 12:20:08,979 INFO L87 Difference]: Start difference. First operand 12 states and 16 transitions. cyclomatic complexity: 7 Second operand 5 states. [2018-11-23 12:20:08,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:20:08,990 INFO L93 Difference]: Finished difference Result 15 states and 18 transitions. [2018-11-23 12:20:08,991 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 12:20:08,991 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 18 transitions. [2018-11-23 12:20:08,992 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-23 12:20:08,993 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 0 states and 0 transitions. [2018-11-23 12:20:08,993 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-23 12:20:08,993 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-23 12:20:08,993 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-23 12:20:08,993 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-23 12:20:08,993 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 12:20:08,993 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 12:20:08,993 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 12:20:08,993 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-23 12:20:08,994 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-23 12:20:08,994 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-23 12:20:08,994 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-23 12:20:08,999 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.11 12:20:08 BoogieIcfgContainer [2018-11-23 12:20:08,999 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-23 12:20:09,000 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 12:20:09,000 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 12:20:09,000 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 12:20:09,001 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:20:07" (3/4) ... [2018-11-23 12:20:09,004 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-23 12:20:09,004 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 12:20:09,005 INFO L168 Benchmark]: Toolchain (without parser) took 1608.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 959.2 MB in the beginning and 973.5 MB in the end (delta: -14.3 MB). Peak memory consumption was 118.9 MB. Max. memory is 11.5 GB. [2018-11-23 12:20:09,006 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 12:20:09,007 INFO L168 Benchmark]: CACSL2BoogieTranslator took 167.58 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 12:20:09,007 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.04 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 12:20:09,008 INFO L168 Benchmark]: Boogie Preprocessor took 12.13 ms. Allocated memory is still 1.0 GB. Free memory is still 945.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 12:20:09,008 INFO L168 Benchmark]: RCFGBuilder took 187.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -175.8 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. [2018-11-23 12:20:09,008 INFO L168 Benchmark]: BuchiAutomizer took 1213.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 973.5 MB in the end (delta: 148.1 MB). Peak memory consumption was 148.1 MB. Max. memory is 11.5 GB. [2018-11-23 12:20:09,009 INFO L168 Benchmark]: Witness Printer took 4.69 ms. Allocated memory is still 1.2 GB. Free memory is still 973.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 12:20:09,012 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 167.58 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 20.04 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.13 ms. Allocated memory is still 1.0 GB. Free memory is still 945.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 187.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -175.8 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1213.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 973.5 MB in the end (delta: 148.1 MB). Peak memory consumption was 148.1 MB. Max. memory is 11.5 GB. * Witness Printer took 4.69 ms. Allocated memory is still 1.2 GB. Free memory is still 973.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (2 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * v2 + m and consists of 4 locations. One deterministic module has affine ranking function v1 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 1.1s and 4 iterations. TraceHistogramMax:3. Analysis of lassos took 0.9s. 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 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 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 [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 24 SDtfs, 18 SDslu, 8 SDs, 0 SdLazy, 18 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc1 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax166 hnf100 lsp33 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 15ms VariablesStem: 0 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...