./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/PastaC9_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_40365a9d-4f7b-4678-bf5d-845f47a66ae1/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_40365a9d-4f7b-4678-bf5d-845f47a66ae1/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_40365a9d-4f7b-4678-bf5d-845f47a66ae1/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_40365a9d-4f7b-4678-bf5d-845f47a66ae1/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/PastaC9_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_40365a9d-4f7b-4678-bf5d-845f47a66ae1/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_40365a9d-4f7b-4678-bf5d-845f47a66ae1/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 ddb977b9fea860f52c9087edc999243e3a2c7a92 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-22 22:50:28,152 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-22 22:50:28,153 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-22 22:50:28,162 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-22 22:50:28,162 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-22 22:50:28,163 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-22 22:50:28,163 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-22 22:50:28,165 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-22 22:50:28,166 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-22 22:50:28,166 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-22 22:50:28,167 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-22 22:50:28,167 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-22 22:50:28,168 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-22 22:50:28,168 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-22 22:50:28,169 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-22 22:50:28,170 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-22 22:50:28,170 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-22 22:50:28,171 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-22 22:50:28,172 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-22 22:50:28,173 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-22 22:50:28,174 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-22 22:50:28,175 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-22 22:50:28,176 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-22 22:50:28,176 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-22 22:50:28,177 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-22 22:50:28,177 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-22 22:50:28,178 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-22 22:50:28,178 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-22 22:50:28,179 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-22 22:50:28,179 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-22 22:50:28,180 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-22 22:50:28,180 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-22 22:50:28,180 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-22 22:50:28,180 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-22 22:50:28,181 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-22 22:50:28,182 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-22 22:50:28,182 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_40365a9d-4f7b-4678-bf5d-845f47a66ae1/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-22 22:50:28,192 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-22 22:50:28,192 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-22 22:50:28,193 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-22 22:50:28,193 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-22 22:50:28,193 INFO L133 SettingsManager]: * Use SBE=true [2018-11-22 22:50:28,193 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-22 22:50:28,194 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-22 22:50:28,194 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-22 22:50:28,194 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-22 22:50:28,194 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-22 22:50:28,194 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-22 22:50:28,194 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-22 22:50:28,194 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-22 22:50:28,194 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-22 22:50:28,195 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-22 22:50:28,195 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-22 22:50:28,195 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-22 22:50:28,195 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-22 22:50:28,195 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-22 22:50:28,195 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-22 22:50:28,195 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-22 22:50:28,195 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-22 22:50:28,196 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-22 22:50:28,196 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-22 22:50:28,196 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-22 22:50:28,196 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-22 22:50:28,196 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-22 22:50:28,196 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-22 22:50:28,197 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-22 22:50:28,197 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_40365a9d-4f7b-4678-bf5d-845f47a66ae1/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 -> ddb977b9fea860f52c9087edc999243e3a2c7a92 [2018-11-22 22:50:28,221 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-22 22:50:28,230 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-22 22:50:28,233 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-22 22:50:28,234 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-22 22:50:28,234 INFO L276 PluginConnector]: CDTParser initialized [2018-11-22 22:50:28,235 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_40365a9d-4f7b-4678-bf5d-845f47a66ae1/bin-2019/uautomizer/../../sv-benchmarks/c/termination-restricted-15/PastaC9_true-termination_true-no-overflow.c [2018-11-22 22:50:28,280 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_40365a9d-4f7b-4678-bf5d-845f47a66ae1/bin-2019/uautomizer/data/1aa5969e1/709d23e3c601477e82b4417461c5b17c/FLAG4c5d072c7 [2018-11-22 22:50:28,576 INFO L307 CDTParser]: Found 1 translation units. [2018-11-22 22:50:28,577 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_40365a9d-4f7b-4678-bf5d-845f47a66ae1/sv-benchmarks/c/termination-restricted-15/PastaC9_true-termination_true-no-overflow.c [2018-11-22 22:50:28,580 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_40365a9d-4f7b-4678-bf5d-845f47a66ae1/bin-2019/uautomizer/data/1aa5969e1/709d23e3c601477e82b4417461c5b17c/FLAG4c5d072c7 [2018-11-22 22:50:28,589 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_40365a9d-4f7b-4678-bf5d-845f47a66ae1/bin-2019/uautomizer/data/1aa5969e1/709d23e3c601477e82b4417461c5b17c [2018-11-22 22:50:28,591 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-22 22:50:28,592 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-22 22:50:28,592 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-22 22:50:28,592 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-22 22:50:28,595 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-22 22:50:28,596 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 10:50:28" (1/1) ... [2018-11-22 22:50:28,598 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fae5e35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:50:28, skipping insertion in model container [2018-11-22 22:50:28,598 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 10:50:28" (1/1) ... [2018-11-22 22:50:28,606 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-22 22:50:28,620 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-22 22:50:28,745 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-22 22:50:28,747 INFO L191 MainTranslator]: Completed pre-run [2018-11-22 22:50:28,756 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-22 22:50:28,764 INFO L195 MainTranslator]: Completed translation [2018-11-22 22:50:28,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:50:28 WrapperNode [2018-11-22 22:50:28,765 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-22 22:50:28,765 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-22 22:50:28,765 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-22 22:50:28,765 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-22 22:50:28,771 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:50:28" (1/1) ... [2018-11-22 22:50:28,774 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:50:28" (1/1) ... [2018-11-22 22:50:28,784 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-22 22:50:28,785 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-22 22:50:28,785 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-22 22:50:28,785 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-22 22:50:28,792 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:50:28" (1/1) ... [2018-11-22 22:50:28,792 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:50:28" (1/1) ... [2018-11-22 22:50:28,793 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:50:28" (1/1) ... [2018-11-22 22:50:28,793 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:50:28" (1/1) ... [2018-11-22 22:50:28,794 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:50:28" (1/1) ... [2018-11-22 22:50:28,797 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:50:28" (1/1) ... [2018-11-22 22:50:28,797 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:50:28" (1/1) ... [2018-11-22 22:50:28,798 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-22 22:50:28,798 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-22 22:50:28,798 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-22 22:50:28,798 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-22 22:50:28,799 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:50:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_40365a9d-4f7b-4678-bf5d-845f47a66ae1/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 [2018-11-22 22:50:28,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-22 22:50:28,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-22 22:50:28,952 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-22 22:50:28,952 INFO L280 CfgBuilder]: Removed 5 assue(true) statements. [2018-11-22 22:50:28,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 10:50:28 BoogieIcfgContainer [2018-11-22 22:50:28,953 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-22 22:50:28,953 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-22 22:50:28,953 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-22 22:50:28,955 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-22 22:50:28,956 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-22 22:50:28,956 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.11 10:50:28" (1/3) ... [2018-11-22 22:50:28,956 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3d8549b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.11 10:50:28, skipping insertion in model container [2018-11-22 22:50:28,956 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-22 22:50:28,956 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:50:28" (2/3) ... [2018-11-22 22:50:28,957 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3d8549b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.11 10:50:28, skipping insertion in model container [2018-11-22 22:50:28,957 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-22 22:50:28,957 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 10:50:28" (3/3) ... [2018-11-22 22:50:28,958 INFO L375 chiAutomizerObserver]: Analyzing ICFG PastaC9_true-termination_true-no-overflow.c [2018-11-22 22:50:28,993 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-22 22:50:28,993 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-22 22:50:28,993 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-22 22:50:28,994 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-22 22:50:28,994 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-22 22:50:28,994 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-22 22:50:28,994 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-22 22:50:28,994 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-22 22:50:28,994 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-22 22:50:29,002 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2018-11-22 22:50:29,015 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-22 22:50:29,015 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-22 22:50:29,016 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-22 22:50:29,021 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-22 22:50:29,021 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-22 22:50:29,021 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-22 22:50:29,021 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2018-11-22 22:50:29,022 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-22 22:50:29,022 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-22 22:50:29,022 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-22 22:50:29,022 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-22 22:50:29,022 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-22 22:50:29,028 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_~x~0, main_~y~0, main_~random~0;havoc main_~x~0;havoc main_~y~0;havoc main_~random~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 5#L14-2true [2018-11-22 22:50:29,029 INFO L796 eck$LassoCheckResult]: Loop: 5#L14-2true assume !!(main_~x~0 > 0 && main_~y~0 > 0);main_~random~0 := main_#t~nondet2;havoc main_#t~nondet2; 9#L14true assume main_~random~0 < 42;main_~x~0 := main_~x~0 - 1;main_~random~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~y~0 := main_~random~0; 5#L14-2true [2018-11-22 22:50:29,033 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 22:50:29,034 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2018-11-22 22:50:29,035 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 22:50:29,036 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 22:50:29,073 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:50:29,073 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 22:50:29,073 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:50:29,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 22:50:29,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 22:50:29,098 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 22:50:29,098 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 1 times [2018-11-22 22:50:29,098 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 22:50:29,098 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 22:50:29,099 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:50:29,099 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 22:50:29,099 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:50:29,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 22:50:29,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 22:50:29,109 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 22:50:29,109 INFO L82 PathProgramCache]: Analyzing trace with hash 31075, now seen corresponding path program 1 times [2018-11-22 22:50:29,109 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 22:50:29,109 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 22:50:29,110 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:50:29,110 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 22:50:29,110 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:50:29,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 22:50:29,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 22:50:29,181 INFO L216 LassoAnalysis]: Preferences: [2018-11-22 22:50:29,182 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-22 22:50:29,182 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-22 22:50:29,182 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-22 22:50:29,182 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-22 22:50:29,182 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 22:50:29,182 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-22 22:50:29,182 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-22 22:50:29,183 INFO L131 ssoRankerPreferences]: Filename of dumped script: PastaC9_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-22 22:50:29,183 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-22 22:50:29,183 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-22 22:50:29,200 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 22:50:29,213 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 22:50:29,216 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 22:50:29,218 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 22:50:29,225 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 22:50:29,355 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-22 22:50:29,356 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_40365a9d-4f7b-4678-bf5d-845f47a66ae1/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 [2018-11-22 22:50:29,360 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 22:50:29,360 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_40365a9d-4f7b-4678-bf5d-845f47a66ae1/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 [2018-11-22 22:50:29,389 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-22 22:50:29,389 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 22:50:29,406 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-22 22:50:29,407 INFO L216 LassoAnalysis]: Preferences: [2018-11-22 22:50:29,407 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-22 22:50:29,407 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-22 22:50:29,408 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-22 22:50:29,408 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-22 22:50:29,408 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 22:50:29,408 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-22 22:50:29,408 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-22 22:50:29,408 INFO L131 ssoRankerPreferences]: Filename of dumped script: PastaC9_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-22 22:50:29,408 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-22 22:50:29,408 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-22 22:50:29,410 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 22:50:29,415 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 22:50:29,417 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 22:50:29,419 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 22:50:29,421 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 22:50:29,470 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-22 22:50:29,473 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-22 22:50:29,474 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 [2018-11-22 22:50:29,475 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 22:50:29,475 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-22 22:50:29,475 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 22:50:29,476 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 22:50:29,476 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 22:50:29,477 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-22 22:50:29,477 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-22 22:50:29,483 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-22 22:50:29,487 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-22 22:50:29,488 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-22 22:50:29,489 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-22 22:50:29,489 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-22 22:50:29,490 INFO L518 LassoAnalysis]: Proved termination. [2018-11-22 22:50:29,490 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2018-11-22 22:50:29,492 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-22 22:50:29,512 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 22:50:29,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 22:50:29,520 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 22:50:29,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 22:50:29,529 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 22:50:29,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 22:50:29,574 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 [2018-11-22 22:50:29,575 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states. Second operand 3 states. [2018-11-22 22:50:29,611 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states.. Second operand 3 states. Result 28 states and 35 transitions. Complement of second has 7 states. [2018-11-22 22:50:29,611 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-22 22:50:29,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-22 22:50:29,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 18 transitions. [2018-11-22 22:50:29,614 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 1 letters. Loop has 2 letters. [2018-11-22 22:50:29,615 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 22:50:29,615 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 3 letters. Loop has 2 letters. [2018-11-22 22:50:29,615 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 22:50:29,615 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 1 letters. Loop has 4 letters. [2018-11-22 22:50:29,616 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 22:50:29,616 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 35 transitions. [2018-11-22 22:50:29,618 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-22 22:50:29,620 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 8 states and 11 transitions. [2018-11-22 22:50:29,621 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2018-11-22 22:50:29,621 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2018-11-22 22:50:29,621 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2018-11-22 22:50:29,621 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-22 22:50:29,621 INFO L705 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2018-11-22 22:50:29,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2018-11-22 22:50:29,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2018-11-22 22:50:29,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-11-22 22:50:29,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2018-11-22 22:50:29,637 INFO L728 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2018-11-22 22:50:29,637 INFO L608 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2018-11-22 22:50:29,637 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-22 22:50:29,638 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2018-11-22 22:50:29,638 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-22 22:50:29,638 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-22 22:50:29,638 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-22 22:50:29,639 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-22 22:50:29,639 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-22 22:50:29,639 INFO L794 eck$LassoCheckResult]: Stem: 71#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_~x~0, main_~y~0, main_~random~0;havoc main_~x~0;havoc main_~y~0;havoc main_~random~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 72#L14-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0);main_~random~0 := main_#t~nondet2;havoc main_#t~nondet2; 74#L14 [2018-11-22 22:50:29,639 INFO L796 eck$LassoCheckResult]: Loop: 74#L14 assume !(main_~random~0 < 42);main_~y~0 := main_~y~0 - 1; 73#L14-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0);main_~random~0 := main_#t~nondet2;havoc main_#t~nondet2; 74#L14 [2018-11-22 22:50:29,639 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 22:50:29,639 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2018-11-22 22:50:29,640 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 22:50:29,640 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 22:50:29,641 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:50:29,641 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 22:50:29,641 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:50:29,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 22:50:29,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 22:50:29,644 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 22:50:29,644 INFO L82 PathProgramCache]: Analyzing trace with hash 1436, now seen corresponding path program 1 times [2018-11-22 22:50:29,644 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 22:50:29,645 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 22:50:29,645 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:50:29,645 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 22:50:29,646 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:50:29,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 22:50:29,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 22:50:29,649 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 22:50:29,649 INFO L82 PathProgramCache]: Analyzing trace with hash 963397, now seen corresponding path program 1 times [2018-11-22 22:50:29,650 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 22:50:29,650 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 22:50:29,651 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:50:29,651 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 22:50:29,651 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:50:29,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 22:50:29,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 22:50:29,684 INFO L216 LassoAnalysis]: Preferences: [2018-11-22 22:50:29,684 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-22 22:50:29,684 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-22 22:50:29,684 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-22 22:50:29,684 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-22 22:50:29,685 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 22:50:29,685 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-22 22:50:29,685 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-22 22:50:29,685 INFO L131 ssoRankerPreferences]: Filename of dumped script: PastaC9_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-22 22:50:29,685 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-22 22:50:29,685 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-22 22:50:29,686 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 22:50:29,688 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 22:50:29,692 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 22:50:29,693 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 22:50:29,696 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 22:50:29,751 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-22 22:50:29,751 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_40365a9d-4f7b-4678-bf5d-845f47a66ae1/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 [2018-11-22 22:50:29,759 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 22:50:29,760 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 22:50:29,785 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-22 22:50:29,785 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_40365a9d-4f7b-4678-bf5d-845f47a66ae1/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 [2018-11-22 22:50:29,788 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 22:50:29,788 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 22:50:29,792 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-22 22:50:29,792 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~random~0=61, ULTIMATE.start_main_#t~nondet2=61} Honda state: {ULTIMATE.start_main_~random~0=61, ULTIMATE.start_main_#t~nondet2=61} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_40365a9d-4f7b-4678-bf5d-845f47a66ae1/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 [2018-11-22 22:50:29,807 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 22:50:29,807 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 22:50:29,832 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-22 22:50:29,833 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_40365a9d-4f7b-4678-bf5d-845f47a66ae1/bin-2019/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 22:50:29,840 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 22:50:29,840 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 22:50:29,864 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-22 22:50:29,865 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=1} Honda state: {ULTIMATE.start_main_~x~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_40365a9d-4f7b-4678-bf5d-845f47a66ae1/bin-2019/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 22:50:29,879 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 22:50:29,879 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_40365a9d-4f7b-4678-bf5d-845f47a66ae1/bin-2019/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 22:50:29,898 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-22 22:50:29,898 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 22:50:29,939 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-22 22:50:29,940 INFO L216 LassoAnalysis]: Preferences: [2018-11-22 22:50:29,940 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-22 22:50:29,940 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-22 22:50:29,941 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-22 22:50:29,941 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-22 22:50:29,941 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 22:50:29,941 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-22 22:50:29,941 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-22 22:50:29,941 INFO L131 ssoRankerPreferences]: Filename of dumped script: PastaC9_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-22 22:50:29,941 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-22 22:50:29,941 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-22 22:50:29,942 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 22:50:29,947 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 22:50:29,953 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 22:50:29,955 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 22:50:29,963 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 22:50:30,000 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-22 22:50:30,000 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-22 22:50:30,001 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 [2018-11-22 22:50:30,001 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 22:50:30,001 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 22:50:30,001 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 22:50:30,001 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 22:50:30,003 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-22 22:50:30,003 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-22 22:50:30,007 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-22 22:50:30,007 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 [2018-11-22 22:50:30,008 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 22:50:30,008 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-22 22:50:30,008 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 22:50:30,008 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 22:50:30,008 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 22:50:30,009 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-22 22:50:30,009 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-22 22:50:30,013 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-22 22:50:30,013 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 [2018-11-22 22:50:30,014 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 22:50:30,014 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-22 22:50:30,014 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 22:50:30,014 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 22:50:30,014 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 22:50:30,014 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-22 22:50:30,015 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-22 22:50:30,015 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-22 22:50:30,016 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 [2018-11-22 22:50:30,016 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 22:50:30,016 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 22:50:30,016 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 22:50:30,017 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 22:50:30,018 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-22 22:50:30,018 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-22 22:50:30,022 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-22 22:50:30,022 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 [2018-11-22 22:50:30,023 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 22:50:30,023 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-22 22:50:30,023 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 22:50:30,023 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 22:50:30,023 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 22:50:30,024 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-22 22:50:30,024 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-22 22:50:30,027 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-22 22:50:30,030 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-22 22:50:30,031 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-22 22:50:30,031 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-22 22:50:30,031 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-22 22:50:30,032 INFO L518 LassoAnalysis]: Proved termination. [2018-11-22 22:50:30,032 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2018-11-22 22:50:30,032 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-22 22:50:30,059 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 22:50:30,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 22:50:30,062 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 22:50:30,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 22:50:30,066 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 22:50:30,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 22:50:30,076 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 [2018-11-22 22:50:30,076 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand 3 states. [2018-11-22 22:50:30,087 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 14 states and 19 transitions. Complement of second has 5 states. [2018-11-22 22:50:30,087 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 [2018-11-22 22:50:30,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-22 22:50:30,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4 transitions. [2018-11-22 22:50:30,088 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 2 letters. Loop has 2 letters. [2018-11-22 22:50:30,088 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 22:50:30,089 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 4 letters. Loop has 2 letters. [2018-11-22 22:50:30,089 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 22:50:30,089 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 2 letters. Loop has 4 letters. [2018-11-22 22:50:30,089 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 22:50:30,089 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 19 transitions. [2018-11-22 22:50:30,090 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-22 22:50:30,090 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 9 states and 12 transitions. [2018-11-22 22:50:30,090 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2018-11-22 22:50:30,091 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2018-11-22 22:50:30,091 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 12 transitions. [2018-11-22 22:50:30,091 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-22 22:50:30,091 INFO L705 BuchiCegarLoop]: Abstraction has 9 states and 12 transitions. [2018-11-22 22:50:30,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 12 transitions. [2018-11-22 22:50:30,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 7. [2018-11-22 22:50:30,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-11-22 22:50:30,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2018-11-22 22:50:30,092 INFO L728 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2018-11-22 22:50:30,092 INFO L608 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2018-11-22 22:50:30,092 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-22 22:50:30,092 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. [2018-11-22 22:50:30,093 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-22 22:50:30,093 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-22 22:50:30,093 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-22 22:50:30,093 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1] [2018-11-22 22:50:30,093 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-22 22:50:30,093 INFO L794 eck$LassoCheckResult]: Stem: 125#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_~x~0, main_~y~0, main_~random~0;havoc main_~x~0;havoc main_~y~0;havoc main_~random~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 126#L14-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0);main_~random~0 := main_#t~nondet2;havoc main_#t~nondet2; 127#L14 assume main_~random~0 < 42;main_~x~0 := main_~x~0 - 1;main_~random~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~y~0 := main_~random~0; 131#L14-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0);main_~random~0 := main_#t~nondet2;havoc main_#t~nondet2; 129#L14 [2018-11-22 22:50:30,094 INFO L796 eck$LassoCheckResult]: Loop: 129#L14 assume !(main_~random~0 < 42);main_~y~0 := main_~y~0 - 1; 130#L14-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0);main_~random~0 := main_#t~nondet2;havoc main_#t~nondet2; 129#L14 [2018-11-22 22:50:30,094 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 22:50:30,094 INFO L82 PathProgramCache]: Analyzing trace with hash 963335, now seen corresponding path program 2 times [2018-11-22 22:50:30,094 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 22:50:30,094 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 22:50:30,095 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:50:30,095 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 22:50:30,095 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:50:30,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 22:50:30,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 22:50:30,101 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 22:50:30,101 INFO L82 PathProgramCache]: Analyzing trace with hash 1436, now seen corresponding path program 2 times [2018-11-22 22:50:30,101 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 22:50:30,101 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 22:50:30,102 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:50:30,102 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-22 22:50:30,102 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:50:30,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 22:50:30,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 22:50:30,105 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 22:50:30,106 INFO L82 PathProgramCache]: Analyzing trace with hash 925765410, now seen corresponding path program 1 times [2018-11-22 22:50:30,106 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 22:50:30,106 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 22:50:30,107 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:50:30,107 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-22 22:50:30,107 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:50:30,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 22:50:30,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 22:50:30,126 INFO L216 LassoAnalysis]: Preferences: [2018-11-22 22:50:30,126 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-22 22:50:30,127 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-22 22:50:30,127 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-22 22:50:30,127 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-22 22:50:30,127 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 22:50:30,127 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-22 22:50:30,127 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-22 22:50:30,127 INFO L131 ssoRankerPreferences]: Filename of dumped script: PastaC9_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-22 22:50:30,127 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-22 22:50:30,127 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-22 22:50:30,128 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 22:50:30,130 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 22:50:30,135 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 22:50:30,139 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 22:50:30,143 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 22:50:30,184 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-22 22:50:30,185 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_40365a9d-4f7b-4678-bf5d-845f47a66ae1/bin-2019/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 22:50:30,205 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 22:50:30,206 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 22:50:30,220 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-22 22:50:30,220 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=1} Honda state: {ULTIMATE.start_main_~x~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_40365a9d-4f7b-4678-bf5d-845f47a66ae1/bin-2019/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 22:50:30,223 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 22:50:30,223 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 22:50:30,238 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-22 22:50:30,238 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_40365a9d-4f7b-4678-bf5d-845f47a66ae1/bin-2019/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 22:50:30,243 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 22:50:30,243 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 22:50:30,247 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-22 22:50:30,248 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~random~0=61, ULTIMATE.start_main_#t~nondet2=61} Honda state: {ULTIMATE.start_main_~random~0=61, ULTIMATE.start_main_#t~nondet2=61} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_40365a9d-4f7b-4678-bf5d-845f47a66ae1/bin-2019/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 22:50:30,262 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 22:50:30,262 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_40365a9d-4f7b-4678-bf5d-845f47a66ae1/bin-2019/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 22:50:30,280 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-22 22:50:30,280 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 22:50:30,320 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-22 22:50:30,321 INFO L216 LassoAnalysis]: Preferences: [2018-11-22 22:50:30,321 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-22 22:50:30,321 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-22 22:50:30,321 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-22 22:50:30,321 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-22 22:50:30,321 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 22:50:30,321 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-22 22:50:30,321 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-22 22:50:30,322 INFO L131 ssoRankerPreferences]: Filename of dumped script: PastaC9_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-22 22:50:30,322 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-22 22:50:30,322 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-22 22:50:30,323 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 22:50:30,327 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 22:50:30,331 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 22:50:30,334 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 22:50:30,337 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 22:50:30,375 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-22 22:50:30,376 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-22 22:50:30,376 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 [2018-11-22 22:50:30,377 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 22:50:30,377 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-22 22:50:30,377 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 22:50:30,377 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 22:50:30,377 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 22:50:30,378 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-22 22:50:30,378 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-22 22:50:30,379 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-22 22:50:30,379 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 [2018-11-22 22:50:30,380 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 22:50:30,380 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 22:50:30,380 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 22:50:30,380 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 22:50:30,381 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-22 22:50:30,381 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-22 22:50:30,384 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-22 22:50:30,384 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 [2018-11-22 22:50:30,385 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 22:50:30,385 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-22 22:50:30,385 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 22:50:30,385 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 22:50:30,385 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 22:50:30,386 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-22 22:50:30,386 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-22 22:50:30,390 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-22 22:50:30,390 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 [2018-11-22 22:50:30,391 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 22:50:30,391 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-22 22:50:30,391 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 22:50:30,391 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 22:50:30,391 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 22:50:30,391 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-22 22:50:30,392 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-22 22:50:30,394 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-22 22:50:30,396 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-22 22:50:30,397 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-22 22:50:30,397 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-22 22:50:30,397 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-22 22:50:30,397 INFO L518 LassoAnalysis]: Proved termination. [2018-11-22 22:50:30,397 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2018-11-22 22:50:30,398 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-22 22:50:30,410 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 22:50:30,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 22:50:30,416 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 22:50:30,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 22:50:30,420 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 22:50:30,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 22:50:30,427 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 [2018-11-22 22:50:30,427 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand 3 states. [2018-11-22 22:50:30,450 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand 3 states. Result 10 states and 13 transitions. Complement of second has 5 states. [2018-11-22 22:50:30,451 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 [2018-11-22 22:50:30,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-22 22:50:30,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4 transitions. [2018-11-22 22:50:30,452 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 4 letters. Loop has 2 letters. [2018-11-22 22:50:30,452 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 22:50:30,452 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-22 22:50:30,460 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 22:50:30,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 22:50:30,464 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 22:50:30,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 22:50:30,469 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 22:50:30,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 22:50:30,481 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-22 22:50:30,481 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand 3 states. [2018-11-22 22:50:30,490 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand 3 states. Result 10 states and 13 transitions. Complement of second has 5 states. [2018-11-22 22:50:30,490 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 [2018-11-22 22:50:30,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-22 22:50:30,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4 transitions. [2018-11-22 22:50:30,491 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 4 letters. Loop has 2 letters. [2018-11-22 22:50:30,491 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 22:50:30,491 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-22 22:50:30,499 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 22:50:30,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 22:50:30,503 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 22:50:30,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 22:50:30,506 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 22:50:30,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 22:50:30,511 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-22 22:50:30,511 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand 3 states. [2018-11-22 22:50:30,520 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand 3 states. Result 10 states and 13 transitions. Complement of second has 4 states. [2018-11-22 22:50:30,520 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 [2018-11-22 22:50:30,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-22 22:50:30,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2018-11-22 22:50:30,521 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 2 letters. [2018-11-22 22:50:30,521 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 22:50:30,521 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 6 letters. Loop has 2 letters. [2018-11-22 22:50:30,521 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 22:50:30,521 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 4 letters. [2018-11-22 22:50:30,522 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 22:50:30,522 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 13 transitions. [2018-11-22 22:50:30,522 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-22 22:50:30,522 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 0 states and 0 transitions. [2018-11-22 22:50:30,522 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-22 22:50:30,523 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-22 22:50:30,523 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-22 22:50:30,523 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-22 22:50:30,523 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-22 22:50:30,523 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-22 22:50:30,523 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-22 22:50:30,523 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-22 22:50:30,523 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-22 22:50:30,523 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-22 22:50:30,523 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-22 22:50:30,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.11 10:50:30 BoogieIcfgContainer [2018-11-22 22:50:30,528 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-22 22:50:30,528 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-22 22:50:30,528 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-22 22:50:30,529 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-22 22:50:30,529 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 10:50:28" (3/4) ... [2018-11-22 22:50:30,532 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-22 22:50:30,532 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-22 22:50:30,532 INFO L168 Benchmark]: Toolchain (without parser) took 1940.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 170.9 MB). Free memory was 958.1 MB in the beginning and 912.9 MB in the end (delta: 45.1 MB). Peak memory consumption was 216.0 MB. Max. memory is 11.5 GB. [2018-11-22 22:50:30,533 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-22 22:50:30,533 INFO L168 Benchmark]: CACSL2BoogieTranslator took 172.77 ms. Allocated memory is still 1.0 GB. Free memory was 958.1 MB in the beginning and 947.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-22 22:50:30,534 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.27 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 944.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-22 22:50:30,534 INFO L168 Benchmark]: Boogie Preprocessor took 13.13 ms. Allocated memory is still 1.0 GB. Free memory is still 944.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-22 22:50:30,535 INFO L168 Benchmark]: RCFGBuilder took 154.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 170.9 MB). Free memory was 944.6 MB in the beginning and 1.2 GB in the end (delta: -209.9 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. [2018-11-22 22:50:30,535 INFO L168 Benchmark]: BuchiAutomizer took 1575.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 912.9 MB in the end (delta: 241.6 MB). Peak memory consumption was 241.6 MB. Max. memory is 11.5 GB. [2018-11-22 22:50:30,536 INFO L168 Benchmark]: Witness Printer took 3.25 ms. Allocated memory is still 1.2 GB. Free memory is still 912.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-22 22:50:30,538 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 172.77 ms. Allocated memory is still 1.0 GB. Free memory was 958.1 MB in the beginning and 947.3 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 19.27 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 944.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.13 ms. Allocated memory is still 1.0 GB. Free memory is still 944.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 154.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 170.9 MB). Free memory was 944.6 MB in the beginning and 1.2 GB in the end (delta: -209.9 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1575.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 912.9 MB in the end (delta: 241.6 MB). Peak memory consumption was 241.6 MB. Max. memory is 11.5 GB. * Witness Printer took 3.25 ms. Allocated memory is still 1.2 GB. Free memory is still 912.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (0 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function x and consists of 5 locations. One deterministic module has affine ranking function y and consists of 3 locations. One nondeterministic module has affine ranking function y and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.5s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 1.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 7 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 22 SDtfs, 18 SDslu, 10 SDs, 0 SdLazy, 32 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT3 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital20 mio100 ax158 hnf97 lsp32 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq164 hnf92 smp100 dnf100 smp100 tf112 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 6ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 7 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...