./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/LogAG_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_2bf5d4a9-def5-4484-81db-d5a126110421/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_2bf5d4a9-def5-4484-81db-d5a126110421/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_2bf5d4a9-def5-4484-81db-d5a126110421/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_2bf5d4a9-def5-4484-81db-d5a126110421/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/LogAG_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_2bf5d4a9-def5-4484-81db-d5a126110421/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_2bf5d4a9-def5-4484-81db-d5a126110421/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 81a46fe8790e1f522cb67a9c253c8a7e6828f982 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 10:51:58,985 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 10:51:58,986 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 10:51:58,992 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 10:51:58,992 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 10:51:58,993 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 10:51:58,994 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 10:51:58,995 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 10:51:58,996 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 10:51:58,996 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 10:51:58,997 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 10:51:58,997 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 10:51:58,998 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 10:51:58,998 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 10:51:58,999 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 10:51:58,999 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 10:51:59,000 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 10:51:59,001 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 10:51:59,002 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 10:51:59,003 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 10:51:59,004 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 10:51:59,005 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 10:51:59,007 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 10:51:59,007 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 10:51:59,007 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 10:51:59,008 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 10:51:59,008 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 10:51:59,009 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 10:51:59,009 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 10:51:59,010 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 10:51:59,010 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 10:51:59,010 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 10:51:59,010 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 10:51:59,010 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 10:51:59,011 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 10:51:59,011 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 10:51:59,011 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_2bf5d4a9-def5-4484-81db-d5a126110421/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-18 10:51:59,020 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 10:51:59,020 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 10:51:59,021 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 10:51:59,021 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 10:51:59,021 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 10:51:59,022 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-18 10:51:59,022 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-18 10:51:59,022 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-18 10:51:59,022 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-18 10:51:59,022 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-18 10:51:59,022 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-18 10:51:59,023 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 10:51:59,023 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 10:51:59,023 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 10:51:59,023 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 10:51:59,023 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-18 10:51:59,023 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-18 10:51:59,023 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-18 10:51:59,024 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 10:51:59,024 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-18 10:51:59,024 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 10:51:59,024 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-18 10:51:59,024 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 10:51:59,024 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 10:51:59,025 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-18 10:51:59,025 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 10:51:59,025 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 10:51:59,025 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-18 10:51:59,026 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-18 10:51:59,026 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_2bf5d4a9-def5-4484-81db-d5a126110421/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 -> 81a46fe8790e1f522cb67a9c253c8a7e6828f982 [2018-11-18 10:51:59,049 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 10:51:59,059 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 10:51:59,062 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 10:51:59,063 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 10:51:59,063 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 10:51:59,064 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_2bf5d4a9-def5-4484-81db-d5a126110421/bin-2019/uautomizer/../../sv-benchmarks/c/termination-restricted-15/LogAG_true-termination_true-no-overflow.c [2018-11-18 10:51:59,110 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2bf5d4a9-def5-4484-81db-d5a126110421/bin-2019/uautomizer/data/97882aaf2/02a7a17dcde6451981a0abbae23241dd/FLAG7ad59abd3 [2018-11-18 10:51:59,446 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 10:51:59,447 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_2bf5d4a9-def5-4484-81db-d5a126110421/sv-benchmarks/c/termination-restricted-15/LogAG_true-termination_true-no-overflow.c [2018-11-18 10:51:59,451 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2bf5d4a9-def5-4484-81db-d5a126110421/bin-2019/uautomizer/data/97882aaf2/02a7a17dcde6451981a0abbae23241dd/FLAG7ad59abd3 [2018-11-18 10:51:59,871 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_2bf5d4a9-def5-4484-81db-d5a126110421/bin-2019/uautomizer/data/97882aaf2/02a7a17dcde6451981a0abbae23241dd [2018-11-18 10:51:59,874 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 10:51:59,874 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 10:51:59,875 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 10:51:59,875 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 10:51:59,877 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 10:51:59,878 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:51:59" (1/1) ... [2018-11-18 10:51:59,879 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64c72818 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:51:59, skipping insertion in model container [2018-11-18 10:51:59,879 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:51:59" (1/1) ... [2018-11-18 10:51:59,886 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 10:51:59,896 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 10:52:00,000 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:52:00,002 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 10:52:00,012 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:52:00,020 INFO L195 MainTranslator]: Completed translation [2018-11-18 10:52:00,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:52:00 WrapperNode [2018-11-18 10:52:00,020 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 10:52:00,021 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 10:52:00,021 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 10:52:00,021 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 10:52:00,026 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:52:00" (1/1) ... [2018-11-18 10:52:00,029 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:52:00" (1/1) ... [2018-11-18 10:52:00,042 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 10:52:00,042 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 10:52:00,042 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 10:52:00,042 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 10:52:00,050 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:52:00" (1/1) ... [2018-11-18 10:52:00,050 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:52:00" (1/1) ... [2018-11-18 10:52:00,050 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:52:00" (1/1) ... [2018-11-18 10:52:00,050 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:52:00" (1/1) ... [2018-11-18 10:52:00,052 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:52:00" (1/1) ... [2018-11-18 10:52:00,054 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:52:00" (1/1) ... [2018-11-18 10:52:00,055 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:52:00" (1/1) ... [2018-11-18 10:52:00,055 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 10:52:00,055 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 10:52:00,056 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 10:52:00,056 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 10:52:00,056 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:52:00" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2bf5d4a9-def5-4484-81db-d5a126110421/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 10:52:00,123 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 10:52:00,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 10:52:00,213 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 10:52:00,213 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:52:00 BoogieIcfgContainer [2018-11-18 10:52:00,213 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 10:52:00,214 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-18 10:52:00,214 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-18 10:52:00,216 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-18 10:52:00,216 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 10:52:00,216 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 10:51:59" (1/3) ... [2018-11-18 10:52:00,217 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@326e5f27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 10:52:00, skipping insertion in model container [2018-11-18 10:52:00,217 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 10:52:00,217 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:52:00" (2/3) ... [2018-11-18 10:52:00,217 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@326e5f27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 10:52:00, skipping insertion in model container [2018-11-18 10:52:00,217 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 10:52:00,218 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:52:00" (3/3) ... [2018-11-18 10:52:00,219 INFO L375 chiAutomizerObserver]: Analyzing ICFG LogAG_true-termination_true-no-overflow.c [2018-11-18 10:52:00,263 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 10:52:00,264 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-18 10:52:00,264 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-18 10:52:00,264 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-18 10:52:00,264 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 10:52:00,264 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 10:52:00,264 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-18 10:52:00,264 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 10:52:00,264 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-18 10:52:00,276 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2018-11-18 10:52:00,293 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2018-11-18 10:52:00,293 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 10:52:00,293 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 10:52:00,298 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-18 10:52:00,298 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-18 10:52:00,299 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-18 10:52:00,299 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2018-11-18 10:52:00,299 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2018-11-18 10:52:00,300 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 10:52:00,300 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 10:52:00,300 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-18 10:52:00,300 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-18 10:52:00,306 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 3#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~xtmp~0, main_~res~0, main_~restmp~0;havoc main_~x~0;havoc main_~xtmp~0;havoc main_~res~0;havoc main_~restmp~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~res~0 := 0; 4#L13-3true [2018-11-18 10:52:00,307 INFO L796 eck$LassoCheckResult]: Loop: 4#L13-3true assume true; 8#L13-1true assume !!(main_~x~0 > 1);main_~xtmp~0 := main_~x~0 - 2;main_~restmp~0 := 0; 12#L17-3true assume !true; 10#L17-4true main_~x~0 := 1 + main_~xtmp~0;main_~res~0 := 1 + main_~res~0; 4#L13-3true [2018-11-18 10:52:00,311 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:52:00,311 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2018-11-18 10:52:00,313 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:52:00,313 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:52:00,355 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:52:00,355 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:52:00,355 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:52:00,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:52:00,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:52:00,376 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:52:00,377 INFO L82 PathProgramCache]: Analyzing trace with hash 1114569, now seen corresponding path program 1 times [2018-11-18 10:52:00,377 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:52:00,377 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:52:00,378 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:52:00,378 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:52:00,378 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:52:00,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:52:00,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:52:00,398 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:52:00,399 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 10:52:00,402 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 10:52:00,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 10:52:00,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 10:52:00,413 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 2 states. [2018-11-18 10:52:00,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:52:00,417 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2018-11-18 10:52:00,418 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 10:52:00,419 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 12 transitions. [2018-11-18 10:52:00,419 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2018-11-18 10:52:00,422 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 7 states and 8 transitions. [2018-11-18 10:52:00,422 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2018-11-18 10:52:00,423 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2018-11-18 10:52:00,423 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 8 transitions. [2018-11-18 10:52:00,423 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 10:52:00,424 INFO L705 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2018-11-18 10:52:00,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 8 transitions. [2018-11-18 10:52:00,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-11-18 10:52:00,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-11-18 10:52:00,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 8 transitions. [2018-11-18 10:52:00,445 INFO L728 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2018-11-18 10:52:00,445 INFO L608 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2018-11-18 10:52:00,445 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-18 10:52:00,446 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 8 transitions. [2018-11-18 10:52:00,446 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2018-11-18 10:52:00,446 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 10:52:00,446 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 10:52:00,446 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-18 10:52:00,447 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2018-11-18 10:52:00,447 INFO L794 eck$LassoCheckResult]: Stem: 33#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 30#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~xtmp~0, main_~res~0, main_~restmp~0;havoc main_~x~0;havoc main_~xtmp~0;havoc main_~res~0;havoc main_~restmp~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~res~0 := 0; 31#L13-3 [2018-11-18 10:52:00,447 INFO L796 eck$LassoCheckResult]: Loop: 31#L13-3 assume true; 32#L13-1 assume !!(main_~x~0 > 1);main_~xtmp~0 := main_~x~0 - 2;main_~restmp~0 := 0; 36#L17-3 assume true; 34#L17-1 assume !(main_~xtmp~0 > 1); 35#L17-4 main_~x~0 := 1 + main_~xtmp~0;main_~res~0 := 1 + main_~res~0; 31#L13-3 [2018-11-18 10:52:00,447 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:52:00,447 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2018-11-18 10:52:00,447 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:52:00,448 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:52:00,449 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:52:00,449 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:52:00,449 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:52:00,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:52:00,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:52:00,452 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:52:00,453 INFO L82 PathProgramCache]: Analyzing trace with hash 34543791, now seen corresponding path program 1 times [2018-11-18 10:52:00,453 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:52:00,453 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:52:00,454 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:52:00,454 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 10:52:00,454 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:52:00,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:52:00,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:52:00,463 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:52:00,464 INFO L82 PathProgramCache]: Analyzing trace with hash 1805983277, now seen corresponding path program 1 times [2018-11-18 10:52:00,464 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:52:00,464 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:52:00,465 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:52:00,465 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:52:00,465 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:52:00,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:52:00,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:52:00,524 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 10:52:00,524 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 10:52:00,525 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 10:52:00,525 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 10:52:00,525 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 10:52:00,525 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 10:52:00,525 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 10:52:00,525 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 10:52:00,525 INFO L131 ssoRankerPreferences]: Filename of dumped script: LogAG_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-18 10:52:00,525 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 10:52:00,526 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 10:52:00,538 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 10:52:00,544 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 10:52:00,546 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 10:52:00,556 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 10:52:00,559 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 10:52:00,669 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 10:52:00,669 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2bf5d4a9-def5-4484-81db-d5a126110421/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 10:52:00,675 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 10:52:00,675 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 10:52:00,695 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 10:52:00,695 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2bf5d4a9-def5-4484-81db-d5a126110421/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 10:52:00,699 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 10:52:00,699 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 10:52:00,714 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 10:52:00,715 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2bf5d4a9-def5-4484-81db-d5a126110421/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 10:52:00,727 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 10:52:00,727 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2bf5d4a9-def5-4484-81db-d5a126110421/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 10:52:00,745 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 10:52:00,746 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 10:52:00,958 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-18 10:52:00,960 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 10:52:00,960 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 10:52:00,960 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 10:52:00,960 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 10:52:00,960 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 10:52:00,960 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 10:52:00,960 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 10:52:00,960 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 10:52:00,960 INFO L131 ssoRankerPreferences]: Filename of dumped script: LogAG_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-18 10:52:00,960 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 10:52:00,960 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 10:52:00,962 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 10:52:00,964 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 10:52:00,966 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 10:52:00,969 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 10:52:00,973 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 10:52:01,027 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 10:52:01,031 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 10:52:01,033 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 10:52:01,034 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 10:52:01,034 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 10:52:01,034 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 10:52:01,034 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 10:52:01,038 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 10:52:01,038 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 10:52:01,044 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 10:52:01,044 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 10:52:01,045 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 10:52:01,045 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 10:52:01,045 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 10:52:01,045 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 10:52:01,047 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 10:52:01,047 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 10:52:01,053 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 10:52:01,053 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 10:52:01,054 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 10:52:01,054 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 10:52:01,054 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 10:52:01,054 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 10:52:01,054 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 10:52:01,055 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 10:52:01,055 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 10:52:01,058 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 10:52:01,058 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 10:52:01,059 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 10:52:01,059 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 10:52:01,059 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 10:52:01,059 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 10:52:01,059 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 10:52:01,060 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 10:52:01,060 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 10:52:01,061 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 10:52:01,061 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 10:52:01,062 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 10:52:01,062 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 10:52:01,062 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 10:52:01,062 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 10:52:01,062 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 10:52:01,063 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 10:52:01,063 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 10:52:01,069 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 10:52:01,073 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-18 10:52:01,073 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-18 10:52:01,075 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 10:52:01,075 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-18 10:52:01,075 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 10:52:01,076 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2018-11-18 10:52:01,077 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-18 10:52:01,108 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:52:01,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:52:01,114 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:52:01,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:52:01,120 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:52:01,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:52:01,136 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-18 10:52:01,136 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 2 Second operand 4 states. [2018-11-18 10:52:01,170 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 2. Second operand 4 states. Result 12 states and 15 transitions. Complement of second has 6 states. [2018-11-18 10:52:01,170 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-18 10:52:01,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 10:52:01,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2018-11-18 10:52:01,172 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 5 letters. [2018-11-18 10:52:01,173 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 10:52:01,173 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 7 letters. Loop has 5 letters. [2018-11-18 10:52:01,173 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 10:52:01,173 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 10 letters. [2018-11-18 10:52:01,174 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 10:52:01,174 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 15 transitions. [2018-11-18 10:52:01,174 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-18 10:52:01,174 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 11 states and 14 transitions. [2018-11-18 10:52:01,175 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2018-11-18 10:52:01,175 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2018-11-18 10:52:01,175 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 14 transitions. [2018-11-18 10:52:01,175 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-18 10:52:01,175 INFO L705 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2018-11-18 10:52:01,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 14 transitions. [2018-11-18 10:52:01,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-11-18 10:52:01,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-11-18 10:52:01,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2018-11-18 10:52:01,176 INFO L728 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2018-11-18 10:52:01,176 INFO L608 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2018-11-18 10:52:01,176 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-18 10:52:01,177 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2018-11-18 10:52:01,177 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-18 10:52:01,177 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 10:52:01,177 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 10:52:01,177 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-11-18 10:52:01,177 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-18 10:52:01,177 INFO L794 eck$LassoCheckResult]: Stem: 99#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 94#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~xtmp~0, main_~res~0, main_~restmp~0;havoc main_~x~0;havoc main_~xtmp~0;havoc main_~res~0;havoc main_~restmp~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~res~0 := 0; 95#L13-3 assume true; 96#L13-1 assume !!(main_~x~0 > 1);main_~xtmp~0 := main_~x~0 - 2;main_~restmp~0 := 0; 101#L17-3 [2018-11-18 10:52:01,178 INFO L796 eck$LassoCheckResult]: Loop: 101#L17-3 assume true; 100#L17-1 assume !!(main_~xtmp~0 > 1);main_~xtmp~0 := main_~xtmp~0 - 2;main_~restmp~0 := 1 + main_~restmp~0; 101#L17-3 [2018-11-18 10:52:01,178 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:52:01,178 INFO L82 PathProgramCache]: Analyzing trace with hash 925641, now seen corresponding path program 1 times [2018-11-18 10:52:01,178 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:52:01,178 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:52:01,179 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:52:01,179 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:52:01,179 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:52:01,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:52:01,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:52:01,183 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:52:01,183 INFO L82 PathProgramCache]: Analyzing trace with hash 1479, now seen corresponding path program 1 times [2018-11-18 10:52:01,183 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:52:01,184 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:52:01,184 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:52:01,184 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:52:01,184 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:52:01,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:52:01,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:52:01,187 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:52:01,187 INFO L82 PathProgramCache]: Analyzing trace with hash 889541519, now seen corresponding path program 1 times [2018-11-18 10:52:01,188 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:52:01,188 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:52:01,188 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:52:01,189 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:52:01,189 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:52:01,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:52:01,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:52:01,202 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 10:52:01,203 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 10:52:01,203 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 10:52:01,203 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 10:52:01,203 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 10:52:01,203 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 10:52:01,203 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 10:52:01,203 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 10:52:01,203 INFO L131 ssoRankerPreferences]: Filename of dumped script: LogAG_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-18 10:52:01,203 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 10:52:01,203 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 10:52:01,204 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 10:52:01,206 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 10:52:01,208 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 10:52:01,212 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 10:52:01,263 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 10:52:01,263 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2bf5d4a9-def5-4484-81db-d5a126110421/bin-2019/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 10:52:01,266 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 10:52:01,266 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 10:52:01,282 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 10:52:01,283 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_2bf5d4a9-def5-4484-81db-d5a126110421/bin-2019/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 10:52:01,285 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 10:52:01,285 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 10:52:01,301 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 10:52:01,301 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_2bf5d4a9-def5-4484-81db-d5a126110421/bin-2019/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 10:52:01,304 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 10:52:01,304 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2bf5d4a9-def5-4484-81db-d5a126110421/bin-2019/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 10:52:01,322 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 10:52:01,322 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 10:52:01,339 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-18 10:52:01,340 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 10:52:01,340 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 10:52:01,340 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 10:52:01,340 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 10:52:01,341 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 10:52:01,341 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 10:52:01,341 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 10:52:01,341 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 10:52:01,341 INFO L131 ssoRankerPreferences]: Filename of dumped script: LogAG_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-18 10:52:01,341 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 10:52:01,341 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 10:52:01,342 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 10:52:01,344 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 10:52:01,348 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 10:52:01,350 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 10:52:01,383 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 10:52:01,383 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 10:52:01,383 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 10:52:01,384 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 10:52:01,384 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 10:52:01,384 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 10:52:01,384 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 10:52:01,386 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 10:52:01,386 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 10:52:01,389 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 10:52:01,389 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 10:52:01,390 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 10:52:01,390 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 10:52:01,390 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 10:52:01,390 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 10:52:01,390 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 10:52:01,391 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 10:52:01,391 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 10:52:01,394 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 10:52:01,397 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-18 10:52:01,397 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-18 10:52:01,397 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 10:52:01,397 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-18 10:52:01,398 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 10:52:01,398 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~xtmp~0) = 1*ULTIMATE.start_main_~xtmp~0 Supporting invariants [] [2018-11-18 10:52:01,398 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-18 10:52:01,410 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:52:01,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:52:01,413 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:52:01,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:52:01,417 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:52:01,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:52:01,417 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-11-18 10:52:01,417 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5 Second operand 3 states. [2018-11-18 10:52:01,427 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 28 states and 34 transitions. Complement of second has 5 states. [2018-11-18 10:52:01,428 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-18 10:52:01,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-18 10:52:01,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2018-11-18 10:52:01,428 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 4 letters. Loop has 2 letters. [2018-11-18 10:52:01,429 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 10:52:01,429 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 6 letters. Loop has 2 letters. [2018-11-18 10:52:01,429 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 10:52:01,429 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 4 letters. Loop has 4 letters. [2018-11-18 10:52:01,429 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 10:52:01,429 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 34 transitions. [2018-11-18 10:52:01,430 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-18 10:52:01,431 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 19 states and 23 transitions. [2018-11-18 10:52:01,431 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2018-11-18 10:52:01,431 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2018-11-18 10:52:01,431 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 23 transitions. [2018-11-18 10:52:01,431 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-18 10:52:01,431 INFO L705 BuchiCegarLoop]: Abstraction has 19 states and 23 transitions. [2018-11-18 10:52:01,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 23 transitions. [2018-11-18 10:52:01,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 15. [2018-11-18 10:52:01,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-11-18 10:52:01,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 18 transitions. [2018-11-18 10:52:01,433 INFO L728 BuchiCegarLoop]: Abstraction has 15 states and 18 transitions. [2018-11-18 10:52:01,433 INFO L608 BuchiCegarLoop]: Abstraction has 15 states and 18 transitions. [2018-11-18 10:52:01,433 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-18 10:52:01,433 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 18 transitions. [2018-11-18 10:52:01,434 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-18 10:52:01,434 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 10:52:01,434 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 10:52:01,434 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1] [2018-11-18 10:52:01,435 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-18 10:52:01,435 INFO L794 eck$LassoCheckResult]: Stem: 181#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 171#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~xtmp~0, main_~res~0, main_~restmp~0;havoc main_~x~0;havoc main_~xtmp~0;havoc main_~res~0;havoc main_~restmp~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~res~0 := 0; 172#L13-3 assume true; 173#L13-1 assume !!(main_~x~0 > 1);main_~xtmp~0 := main_~x~0 - 2;main_~restmp~0 := 0; 180#L17-3 assume true; 185#L17-1 assume !(main_~xtmp~0 > 1); 182#L17-4 main_~x~0 := 1 + main_~xtmp~0;main_~res~0 := 1 + main_~res~0; 174#L13-3 assume true; 175#L13-1 assume !!(main_~x~0 > 1);main_~xtmp~0 := main_~x~0 - 2;main_~restmp~0 := 0; 178#L17-3 [2018-11-18 10:52:01,435 INFO L796 eck$LassoCheckResult]: Loop: 178#L17-3 assume true; 177#L17-1 assume !!(main_~xtmp~0 > 1);main_~xtmp~0 := main_~xtmp~0 - 2;main_~restmp~0 := 1 + main_~restmp~0; 178#L17-3 [2018-11-18 10:52:01,435 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:52:01,435 INFO L82 PathProgramCache]: Analyzing trace with hash 383141811, now seen corresponding path program 2 times [2018-11-18 10:52:01,435 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:52:01,435 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:52:01,436 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:52:01,437 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:52:01,437 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:52:01,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:52:01,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:52:01,444 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:52:01,444 INFO L82 PathProgramCache]: Analyzing trace with hash 1479, now seen corresponding path program 2 times [2018-11-18 10:52:01,444 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:52:01,444 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:52:01,445 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:52:01,445 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 10:52:01,445 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:52:01,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:52:01,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:52:01,449 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:52:01,449 INFO L82 PathProgramCache]: Analyzing trace with hash -1167906567, now seen corresponding path program 1 times [2018-11-18 10:52:01,449 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:52:01,450 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:52:01,450 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:52:01,451 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 10:52:01,451 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:52:01,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:52:01,495 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:52:01,496 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:52:01,496 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 10:52:01,523 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 10:52:01,523 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 10:52:01,523 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 10:52:01,523 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 10:52:01,523 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 10:52:01,523 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 10:52:01,523 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 10:52:01,523 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 10:52:01,523 INFO L131 ssoRankerPreferences]: Filename of dumped script: LogAG_true-termination_true-no-overflow.c_Iteration4_Loop [2018-11-18 10:52:01,523 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 10:52:01,523 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 10:52:01,524 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 10:52:01,527 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 10:52:01,529 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 10:52:01,532 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 10:52:01,574 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 10:52:01,574 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2bf5d4a9-def5-4484-81db-d5a126110421/bin-2019/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 10:52:01,575 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 10:52:01,576 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2bf5d4a9-def5-4484-81db-d5a126110421/bin-2019/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 10:52:01,593 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 10:52:01,593 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 10:52:01,602 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 10:52:01,603 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~restmp~0=0} Honda state: {ULTIMATE.start_main_~restmp~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~restmp~0=0}, {ULTIMATE.start_main_~restmp~0=-1}, {ULTIMATE.start_main_~restmp~0=2}] Lambdas: [0, 1, 1] Nus: [0, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2bf5d4a9-def5-4484-81db-d5a126110421/bin-2019/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 10:52:01,618 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 10:52:01,618 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 10:52:01,634 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 10:52:01,634 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_2bf5d4a9-def5-4484-81db-d5a126110421/bin-2019/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 10:52:01,637 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 10:52:01,637 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2bf5d4a9-def5-4484-81db-d5a126110421/bin-2019/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 10:52:01,654 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 10:52:01,654 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 10:52:01,670 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-18 10:52:01,672 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 10:52:01,672 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 10:52:01,672 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 10:52:01,672 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 10:52:01,672 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 10:52:01,672 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 10:52:01,672 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 10:52:01,672 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 10:52:01,672 INFO L131 ssoRankerPreferences]: Filename of dumped script: LogAG_true-termination_true-no-overflow.c_Iteration4_Loop [2018-11-18 10:52:01,673 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 10:52:01,673 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 10:52:01,673 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 10:52:01,675 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 10:52:01,693 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 10:52:01,702 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 10:52:01,750 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 10:52:01,750 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 10:52:01,750 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 10:52:01,751 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 10:52:01,751 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 10:52:01,751 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 10:52:01,751 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 10:52:01,751 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 10:52:01,752 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 10:52:01,752 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 10:52:01,753 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 10:52:01,754 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 10:52:01,754 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 10:52:01,754 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 10:52:01,754 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 10:52:01,754 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 10:52:01,754 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 10:52:01,755 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 10:52:01,755 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 10:52:01,757 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 10:52:01,759 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-18 10:52:01,759 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-18 10:52:01,760 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 10:52:01,760 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-18 10:52:01,760 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 10:52:01,760 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~xtmp~0) = 1*ULTIMATE.start_main_~xtmp~0 Supporting invariants [] [2018-11-18 10:52:01,760 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-18 10:52:01,769 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:52:01,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:52:01,778 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:52:01,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:52:01,781 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:52:01,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:52:01,781 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-11-18 10:52:01,781 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 18 transitions. cyclomatic complexity: 6 Second operand 3 states. [2018-11-18 10:52:01,791 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 18 transitions. cyclomatic complexity: 6. Second operand 3 states. Result 25 states and 29 transitions. Complement of second has 5 states. [2018-11-18 10:52:01,791 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-18 10:52:01,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-18 10:52:01,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2018-11-18 10:52:01,792 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 9 letters. Loop has 2 letters. [2018-11-18 10:52:01,792 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 10:52:01,792 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-18 10:52:01,802 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:52:01,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:52:01,809 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:52:01,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:52:01,813 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:52:01,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:52:01,814 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2018-11-18 10:52:01,814 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 18 transitions. cyclomatic complexity: 6 Second operand 3 states. [2018-11-18 10:52:01,821 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 18 transitions. cyclomatic complexity: 6. Second operand 3 states. Result 25 states and 29 transitions. Complement of second has 5 states. [2018-11-18 10:52:01,821 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-18 10:52:01,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-18 10:52:01,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2018-11-18 10:52:01,822 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 9 letters. Loop has 2 letters. [2018-11-18 10:52:01,822 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 10:52:01,822 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-18 10:52:01,835 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:52:01,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:52:01,839 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:52:01,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:52:01,842 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:52:01,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:52:01,842 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-11-18 10:52:01,842 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 18 transitions. cyclomatic complexity: 6 Second operand 3 states. [2018-11-18 10:52:01,849 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 18 transitions. cyclomatic complexity: 6. Second operand 3 states. Result 24 states and 29 transitions. Complement of second has 4 states. [2018-11-18 10:52:01,850 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-18 10:52:01,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-18 10:52:01,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 14 transitions. [2018-11-18 10:52:01,850 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 9 letters. Loop has 2 letters. [2018-11-18 10:52:01,851 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 10:52:01,851 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 11 letters. Loop has 2 letters. [2018-11-18 10:52:01,851 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 10:52:01,851 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 9 letters. Loop has 4 letters. [2018-11-18 10:52:01,851 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 10:52:01,851 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 29 transitions. [2018-11-18 10:52:01,853 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-18 10:52:01,853 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 0 states and 0 transitions. [2018-11-18 10:52:01,853 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-18 10:52:01,853 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-18 10:52:01,853 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-18 10:52:01,853 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 10:52:01,853 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 10:52:01,854 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 10:52:01,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 10:52:01,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-18 10:52:01,854 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 5 states. [2018-11-18 10:52:01,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:52:01,854 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2018-11-18 10:52:01,854 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 10:52:01,854 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2018-11-18 10:52:01,854 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-18 10:52:01,854 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 10:52:01,854 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-18 10:52:01,854 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-18 10:52:01,855 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-18 10:52:01,855 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 10:52:01,855 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 10:52:01,855 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 10:52:01,855 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 10:52:01,855 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-11-18 10:52:01,855 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-18 10:52:01,855 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-18 10:52:01,855 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-18 10:52:01,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 10:52:01 BoogieIcfgContainer [2018-11-18 10:52:01,859 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-18 10:52:01,859 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 10:52:01,859 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 10:52:01,860 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 10:52:01,860 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:52:00" (3/4) ... [2018-11-18 10:52:01,862 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 10:52:01,862 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 10:52:01,863 INFO L168 Benchmark]: Toolchain (without parser) took 1988.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 958.2 MB in the beginning and 901.7 MB in the end (delta: 56.5 MB). Peak memory consumption was 193.9 MB. Max. memory is 11.5 GB. [2018-11-18 10:52:01,864 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 10:52:01,864 INFO L168 Benchmark]: CACSL2BoogieTranslator took 145.44 ms. Allocated memory is still 1.0 GB. Free memory was 958.2 MB in the beginning and 947.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 10:52:01,864 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.21 ms. Allocated memory is still 1.0 GB. Free memory was 947.4 MB in the beginning and 944.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 10:52:01,865 INFO L168 Benchmark]: Boogie Preprocessor took 13.30 ms. Allocated memory is still 1.0 GB. Free memory is still 944.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 10:52:01,865 INFO L168 Benchmark]: RCFGBuilder took 157.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -178.5 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. [2018-11-18 10:52:01,865 INFO L168 Benchmark]: BuchiAutomizer took 1645.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 901.7 MB in the end (delta: 221.6 MB). Peak memory consumption was 221.6 MB. Max. memory is 11.5 GB. [2018-11-18 10:52:01,866 INFO L168 Benchmark]: Witness Printer took 2.82 ms. Allocated memory is still 1.2 GB. Free memory is still 901.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 10:52:01,868 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 145.44 ms. Allocated memory is still 1.0 GB. Free memory was 958.2 MB in the beginning and 947.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 21.21 ms. Allocated memory is still 1.0 GB. Free memory was 947.4 MB in the beginning and 944.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.30 ms. Allocated memory is still 1.0 GB. Free memory is still 944.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 157.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -178.5 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1645.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 901.7 MB in the end (delta: 221.6 MB). Peak memory consumption was 221.6 MB. Max. memory is 11.5 GB. * Witness Printer took 2.82 ms. Allocated memory is still 1.2 GB. Free memory is still 901.7 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 5 terminating modules (2 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function x and consists of 4 locations. One deterministic module has affine ranking function xtmp and consists of 3 locations. One nondeterministic module has affine ranking function xtmp and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.6s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 1.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 15 states and ocurred in iteration 3. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 48 SDtfs, 40 SDslu, 9 SDs, 0 SdLazy, 32 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT2 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital19 mio100 ax168 hnf99 lsp40 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq162 hnf93 smp100 dnf100 smp100 tf111 neg100 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 12ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...