./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/b.18.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_516fd8a8-5432-485a-8dab-1b5ee0d9d4d6/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_516fd8a8-5432-485a-8dab-1b5ee0d9d4d6/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_516fd8a8-5432-485a-8dab-1b5ee0d9d4d6/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_516fd8a8-5432-485a-8dab-1b5ee0d9d4d6/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/b.18.c -s /tmp/vcloud-vcloud-master/worker/working_dir_516fd8a8-5432-485a-8dab-1b5ee0d9d4d6/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_516fd8a8-5432-485a-8dab-1b5ee0d9d4d6/bin/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 bd4093f0fb25d9d8e9de7e7010b28ffecefa6ef0 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 09:01:56,843 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 09:01:56,844 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 09:01:56,854 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 09:01:56,854 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 09:01:56,855 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 09:01:56,856 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 09:01:56,858 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 09:01:56,860 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 09:01:56,860 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 09:01:56,861 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 09:01:56,862 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 09:01:56,862 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 09:01:56,863 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 09:01:56,864 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 09:01:56,865 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 09:01:56,866 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 09:01:56,867 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 09:01:56,869 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 09:01:56,871 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 09:01:56,872 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 09:01:56,873 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 09:01:56,877 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 09:01:56,879 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 09:01:56,882 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 09:01:56,889 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 09:01:56,889 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 09:01:56,890 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 09:01:56,890 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 09:01:56,891 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 09:01:56,891 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 09:01:56,892 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 09:01:56,892 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 09:01:56,893 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 09:01:56,894 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 09:01:56,894 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 09:01:56,895 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 09:01:56,895 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 09:01:56,895 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 09:01:56,896 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 09:01:56,897 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 09:01:56,897 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_516fd8a8-5432-485a-8dab-1b5ee0d9d4d6/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-10-22 09:01:56,910 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 09:01:56,910 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 09:01:56,911 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 09:01:56,911 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 09:01:56,912 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 09:01:56,912 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-10-22 09:01:56,912 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-10-22 09:01:56,912 INFO L138 SettingsManager]: * Use old map elimination=false [2019-10-22 09:01:56,912 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-10-22 09:01:56,912 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-10-22 09:01:56,912 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-10-22 09:01:56,913 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 09:01:56,914 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 09:01:56,914 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 09:01:56,914 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 09:01:56,914 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-10-22 09:01:56,914 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-10-22 09:01:56,914 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-10-22 09:01:56,914 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 09:01:56,915 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-10-22 09:01:56,915 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 09:01:56,915 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-10-22 09:01:56,915 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 09:01:56,915 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 09:01:56,915 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-10-22 09:01:56,915 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 09:01:56,916 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 09:01:56,916 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-10-22 09:01:56,917 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-10-22 09:01:56,919 INFO L138 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_516fd8a8-5432-485a-8dab-1b5ee0d9d4d6/bin/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 -> bd4093f0fb25d9d8e9de7e7010b28ffecefa6ef0 [2019-10-22 09:01:56,960 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 09:01:56,972 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 09:01:56,975 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 09:01:56,976 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 09:01:56,978 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 09:01:56,979 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_516fd8a8-5432-485a-8dab-1b5ee0d9d4d6/bin/uautomizer/../../sv-benchmarks/c/termination-restricted-15/b.18.c [2019-10-22 09:01:57,032 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_516fd8a8-5432-485a-8dab-1b5ee0d9d4d6/bin/uautomizer/data/e5e11d791/65d0a94707434290b66b42ea502b1fd2/FLAG248f8a35b [2019-10-22 09:01:57,413 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 09:01:57,414 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_516fd8a8-5432-485a-8dab-1b5ee0d9d4d6/sv-benchmarks/c/termination-restricted-15/b.18.c [2019-10-22 09:01:57,418 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_516fd8a8-5432-485a-8dab-1b5ee0d9d4d6/bin/uautomizer/data/e5e11d791/65d0a94707434290b66b42ea502b1fd2/FLAG248f8a35b [2019-10-22 09:01:57,429 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_516fd8a8-5432-485a-8dab-1b5ee0d9d4d6/bin/uautomizer/data/e5e11d791/65d0a94707434290b66b42ea502b1fd2 [2019-10-22 09:01:57,432 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 09:01:57,433 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 09:01:57,434 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 09:01:57,434 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 09:01:57,438 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 09:01:57,439 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:01:57" (1/1) ... [2019-10-22 09:01:57,442 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c07e3f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:57, skipping insertion in model container [2019-10-22 09:01:57,442 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:01:57" (1/1) ... [2019-10-22 09:01:57,449 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 09:01:57,465 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 09:01:57,655 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:01:57,660 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 09:01:57,744 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:01:57,762 INFO L192 MainTranslator]: Completed translation [2019-10-22 09:01:57,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:57 WrapperNode [2019-10-22 09:01:57,762 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 09:01:57,765 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 09:01:57,765 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 09:01:57,765 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 09:01:57,775 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:57" (1/1) ... [2019-10-22 09:01:57,780 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:57" (1/1) ... [2019-10-22 09:01:57,795 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 09:01:57,795 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 09:01:57,796 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 09:01:57,796 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 09:01:57,802 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:57" (1/1) ... [2019-10-22 09:01:57,803 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:57" (1/1) ... [2019-10-22 09:01:57,803 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:57" (1/1) ... [2019-10-22 09:01:57,803 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:57" (1/1) ... [2019-10-22 09:01:57,805 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:57" (1/1) ... [2019-10-22 09:01:57,809 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:57" (1/1) ... [2019-10-22 09:01:57,810 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:57" (1/1) ... [2019-10-22 09:01:57,811 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 09:01:57,812 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 09:01:57,812 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 09:01:57,812 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 09:01:57,814 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_516fd8a8-5432-485a-8dab-1b5ee0d9d4d6/bin/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 [2019-10-22 09:01:57,864 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 09:01:57,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 09:01:57,979 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 09:01:57,980 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-10-22 09:01:57,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:01:57 BoogieIcfgContainer [2019-10-22 09:01:57,981 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 09:01:57,981 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-10-22 09:01:57,981 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-10-22 09:01:57,984 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-10-22 09:01:57,985 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 09:01:57,985 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.10 09:01:57" (1/3) ... [2019-10-22 09:01:57,986 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7f54d907 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 09:01:57, skipping insertion in model container [2019-10-22 09:01:57,986 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 09:01:57,986 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:57" (2/3) ... [2019-10-22 09:01:57,987 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7f54d907 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 09:01:57, skipping insertion in model container [2019-10-22 09:01:57,987 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 09:01:57,987 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:01:57" (3/3) ... [2019-10-22 09:01:57,988 INFO L371 chiAutomizerObserver]: Analyzing ICFG b.18.c [2019-10-22 09:01:58,036 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-10-22 09:01:58,036 INFO L357 BuchiCegarLoop]: Hoare is false [2019-10-22 09:01:58,036 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-10-22 09:01:58,036 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 09:01:58,036 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 09:01:58,036 INFO L361 BuchiCegarLoop]: Difference is false [2019-10-22 09:01:58,037 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 09:01:58,037 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-10-22 09:01:58,054 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states. [2019-10-22 09:01:58,079 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-10-22 09:01:58,079 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:01:58,079 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:01:58,090 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-10-22 09:01:58,090 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-10-22 09:01:58,090 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-10-22 09:01:58,090 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states. [2019-10-22 09:01:58,091 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-10-22 09:01:58,091 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:01:58,091 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:01:58,092 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-10-22 09:01:58,092 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-10-22 09:01:58,100 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 5#L15-3true [2019-10-22 09:01:58,101 INFO L793 eck$LassoCheckResult]: Loop: 5#L15-3true assume !!(main_~x~0 > 0 && main_~y~0 > 0); 3#L10true assume !(main_~x~0 > main_~y~0); 8#L15-2true assume !(main_~y~0 > 0); 5#L15-3true [2019-10-22 09:01:58,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:58,107 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-10-22 09:01:58,116 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:58,116 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877741070] [2019-10-22 09:01:58,116 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:58,117 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:58,117 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:58,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:58,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:58,224 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:01:58,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:58,226 INFO L82 PathProgramCache]: Analyzing trace with hash 40272, now seen corresponding path program 1 times [2019-10-22 09:01:58,226 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:58,226 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719496677] [2019-10-22 09:01:58,226 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:58,226 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:58,226 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:58,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:58,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:01:58,267 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719496677] [2019-10-22 09:01:58,268 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:01:58,268 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-10-22 09:01:58,268 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118320141] [2019-10-22 09:01:58,273 INFO L808 eck$LassoCheckResult]: loop already infeasible [2019-10-22 09:01:58,275 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:01:58,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 09:01:58,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 09:01:58,288 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 3 states. [2019-10-22 09:01:58,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:01:58,318 INFO L93 Difference]: Finished difference Result 15 states and 18 transitions. [2019-10-22 09:01:58,319 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 09:01:58,321 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 18 transitions. [2019-10-22 09:01:58,322 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2019-10-22 09:01:58,326 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 7 states and 10 transitions. [2019-10-22 09:01:58,327 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2019-10-22 09:01:58,328 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2019-10-22 09:01:58,328 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2019-10-22 09:01:58,329 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 09:01:58,329 INFO L688 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-10-22 09:01:58,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2019-10-22 09:01:58,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 6. [2019-10-22 09:01:58,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-10-22 09:01:58,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 9 transitions. [2019-10-22 09:01:58,358 INFO L711 BuchiCegarLoop]: Abstraction has 6 states and 9 transitions. [2019-10-22 09:01:58,358 INFO L591 BuchiCegarLoop]: Abstraction has 6 states and 9 transitions. [2019-10-22 09:01:58,358 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-10-22 09:01:58,358 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 9 transitions. [2019-10-22 09:01:58,359 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-10-22 09:01:58,359 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:01:58,359 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:01:58,360 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-10-22 09:01:58,360 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-10-22 09:01:58,360 INFO L791 eck$LassoCheckResult]: Stem: 36#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 37#L15-3 [2019-10-22 09:01:58,360 INFO L793 eck$LassoCheckResult]: Loop: 37#L15-3 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 33#L10 assume main_~x~0 > main_~y~0; 35#L11-2 assume !(main_~x~0 > 0); 37#L15-3 [2019-10-22 09:01:58,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:58,361 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 2 times [2019-10-22 09:01:58,361 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:58,361 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406928543] [2019-10-22 09:01:58,361 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:58,361 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:58,361 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:58,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:58,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:58,367 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:01:58,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:58,368 INFO L82 PathProgramCache]: Analyzing trace with hash 39824, now seen corresponding path program 1 times [2019-10-22 09:01:58,368 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:58,368 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611380641] [2019-10-22 09:01:58,368 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:58,368 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:58,369 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:58,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:58,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:01:58,381 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611380641] [2019-10-22 09:01:58,381 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:01:58,381 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-10-22 09:01:58,381 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913872915] [2019-10-22 09:01:58,382 INFO L808 eck$LassoCheckResult]: loop already infeasible [2019-10-22 09:01:58,382 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:01:58,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 09:01:58,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 09:01:58,382 INFO L87 Difference]: Start difference. First operand 6 states and 9 transitions. cyclomatic complexity: 4 Second operand 3 states. [2019-10-22 09:01:58,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:01:58,395 INFO L93 Difference]: Finished difference Result 8 states and 11 transitions. [2019-10-22 09:01:58,396 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 09:01:58,397 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 11 transitions. [2019-10-22 09:01:58,397 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2019-10-22 09:01:58,398 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 8 states and 11 transitions. [2019-10-22 09:01:58,398 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2019-10-22 09:01:58,398 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2019-10-22 09:01:58,398 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2019-10-22 09:01:58,398 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 09:01:58,398 INFO L688 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2019-10-22 09:01:58,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2019-10-22 09:01:58,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2019-10-22 09:01:58,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-10-22 09:01:58,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2019-10-22 09:01:58,400 INFO L711 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-10-22 09:01:58,400 INFO L591 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-10-22 09:01:58,400 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-10-22 09:01:58,400 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2019-10-22 09:01:58,400 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2019-10-22 09:01:58,401 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:01:58,401 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:01:58,401 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-10-22 09:01:58,401 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-10-22 09:01:58,402 INFO L791 eck$LassoCheckResult]: Stem: 56#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 57#L15-3 [2019-10-22 09:01:58,402 INFO L793 eck$LassoCheckResult]: Loop: 57#L15-3 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 53#L10 assume !(main_~x~0 > main_~y~0); 54#L15-2 assume !!(main_~y~0 > 0);main_~y~0 := main_~y~0 - 1; 58#L15-2 assume !(main_~y~0 > 0); 57#L15-3 [2019-10-22 09:01:58,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:58,402 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 3 times [2019-10-22 09:01:58,402 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:58,402 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950717543] [2019-10-22 09:01:58,403 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:58,403 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:58,403 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:58,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:58,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:58,408 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:01:58,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:58,409 INFO L82 PathProgramCache]: Analyzing trace with hash 1248528, now seen corresponding path program 1 times [2019-10-22 09:01:58,409 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:58,409 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289037512] [2019-10-22 09:01:58,410 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:58,410 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:58,410 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:58,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:58,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:58,418 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:01:58,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:58,419 INFO L82 PathProgramCache]: Analyzing trace with hash 29877679, now seen corresponding path program 1 times [2019-10-22 09:01:58,419 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:58,419 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202782880] [2019-10-22 09:01:58,419 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:58,420 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:58,420 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:58,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:58,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:58,430 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:01:58,475 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 09:01:58,475 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 09:01:58,476 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 09:01:58,476 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 09:01:58,476 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-10-22 09:01:58,476 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 09:01:58,476 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 09:01:58,476 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 09:01:58,476 INFO L131 ssoRankerPreferences]: Filename of dumped script: b.18.c_Iteration3_Loop [2019-10-22 09:01:58,476 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 09:01:58,477 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 09:01:58,497 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:58,517 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:58,521 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:58,604 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 09:01:58,605 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_516fd8a8-5432-485a-8dab-1b5ee0d9d4d6/bin/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 [2019-10-22 09:01:58,616 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 09:01:58,617 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_516fd8a8-5432-485a-8dab-1b5ee0d9d4d6/bin/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 [2019-10-22 09:01:58,638 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-10-22 09:01:58,638 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-10-22 09:01:58,717 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-10-22 09:01:58,719 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 09:01:58,719 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 09:01:58,719 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 09:01:58,719 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 09:01:58,720 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-10-22 09:01:58,720 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 09:01:58,720 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 09:01:58,720 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 09:01:58,720 INFO L131 ssoRankerPreferences]: Filename of dumped script: b.18.c_Iteration3_Loop [2019-10-22 09:01:58,720 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 09:01:58,720 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 09:01:58,722 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:58,748 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:58,762 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:58,842 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 09:01:58,847 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-10-22 09:01:58,850 INFO L120 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 [2019-10-22 09:01:58,851 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:01:58,851 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 09:01:58,852 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:01:58,852 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:01:58,852 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:01:58,855 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 09:01:58,855 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 09:01:58,876 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-10-22 09:01:58,885 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-10-22 09:01:58,885 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2019-10-22 09:01:58,887 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-10-22 09:01:58,887 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-10-22 09:01:58,888 INFO L510 LassoAnalysis]: Proved termination. [2019-10-22 09:01:58,892 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2019-10-22 09:01:58,895 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-10-22 09:01:58,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:58,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:58,930 INFO L256 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 09:01:58,931 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:01:58,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:58,940 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-22 09:01:58,940 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:01:58,960 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-22 09:01:58,963 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 [2019-10-22 09:01:58,964 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 4 Second operand 3 states. [2019-10-22 09:01:59,028 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 4. Second operand 3 states. Result 16 states and 23 transitions. Complement of second has 6 states. [2019-10-22 09:01:59,030 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 [2019-10-22 09:01:59,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-10-22 09:01:59,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2019-10-22 09:01:59,032 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 1 letters. Loop has 4 letters. [2019-10-22 09:01:59,033 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 09:01:59,033 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 5 letters. Loop has 4 letters. [2019-10-22 09:01:59,033 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 09:01:59,034 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 1 letters. Loop has 8 letters. [2019-10-22 09:01:59,034 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 09:01:59,034 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 23 transitions. [2019-10-22 09:01:59,035 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-10-22 09:01:59,035 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 15 states and 21 transitions. [2019-10-22 09:01:59,036 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2019-10-22 09:01:59,036 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2019-10-22 09:01:59,036 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 21 transitions. [2019-10-22 09:01:59,036 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-10-22 09:01:59,036 INFO L688 BuchiCegarLoop]: Abstraction has 15 states and 21 transitions. [2019-10-22 09:01:59,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 21 transitions. [2019-10-22 09:01:59,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 12. [2019-10-22 09:01:59,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-10-22 09:01:59,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 18 transitions. [2019-10-22 09:01:59,043 INFO L711 BuchiCegarLoop]: Abstraction has 12 states and 18 transitions. [2019-10-22 09:01:59,050 INFO L591 BuchiCegarLoop]: Abstraction has 12 states and 18 transitions. [2019-10-22 09:01:59,050 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-10-22 09:01:59,050 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 18 transitions. [2019-10-22 09:01:59,051 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-10-22 09:01:59,051 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:01:59,051 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:01:59,051 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-10-22 09:01:59,051 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-10-22 09:01:59,051 INFO L791 eck$LassoCheckResult]: Stem: 120#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 121#L15-3 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 115#L10 [2019-10-22 09:01:59,052 INFO L793 eck$LassoCheckResult]: Loop: 115#L10 assume main_~x~0 > main_~y~0; 116#L11-2 assume !!(main_~x~0 > 0);main_~x~0 := main_~x~0 - 1; 125#L11-2 assume !(main_~x~0 > 0); 122#L15-3 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 115#L10 [2019-10-22 09:01:59,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:59,052 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2019-10-22 09:01:59,052 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:59,052 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933103523] [2019-10-22 09:01:59,052 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:59,052 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:59,053 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:59,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:59,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:59,060 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:01:59,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:59,060 INFO L82 PathProgramCache]: Analyzing trace with hash 1332576, now seen corresponding path program 1 times [2019-10-22 09:01:59,060 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:59,060 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234355785] [2019-10-22 09:01:59,061 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:59,061 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:59,061 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:59,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:59,071 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-22 09:01:59,071 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234355785] [2019-10-22 09:01:59,072 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:01:59,072 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 09:01:59,072 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976695950] [2019-10-22 09:01:59,072 INFO L808 eck$LassoCheckResult]: loop already infeasible [2019-10-22 09:01:59,072 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:01:59,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 09:01:59,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 09:01:59,073 INFO L87 Difference]: Start difference. First operand 12 states and 18 transitions. cyclomatic complexity: 8 Second operand 3 states. [2019-10-22 09:01:59,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:01:59,080 INFO L93 Difference]: Finished difference Result 14 states and 18 transitions. [2019-10-22 09:01:59,080 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 09:01:59,081 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 18 transitions. [2019-10-22 09:01:59,081 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-10-22 09:01:59,082 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 10 states and 13 transitions. [2019-10-22 09:01:59,082 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2019-10-22 09:01:59,082 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2019-10-22 09:01:59,082 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 13 transitions. [2019-10-22 09:01:59,082 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-10-22 09:01:59,082 INFO L688 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2019-10-22 09:01:59,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 13 transitions. [2019-10-22 09:01:59,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2019-10-22 09:01:59,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-10-22 09:01:59,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 12 transitions. [2019-10-22 09:01:59,084 INFO L711 BuchiCegarLoop]: Abstraction has 9 states and 12 transitions. [2019-10-22 09:01:59,084 INFO L591 BuchiCegarLoop]: Abstraction has 9 states and 12 transitions. [2019-10-22 09:01:59,084 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-10-22 09:01:59,084 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 12 transitions. [2019-10-22 09:01:59,084 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-10-22 09:01:59,084 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:01:59,084 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:01:59,085 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-10-22 09:01:59,085 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-10-22 09:01:59,085 INFO L791 eck$LassoCheckResult]: Stem: 151#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 152#L15-3 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 147#L10 assume main_~x~0 > main_~y~0; 148#L11-2 [2019-10-22 09:01:59,085 INFO L793 eck$LassoCheckResult]: Loop: 148#L11-2 assume !!(main_~x~0 > 0);main_~x~0 := main_~x~0 - 1; 148#L11-2 [2019-10-22 09:01:59,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:59,086 INFO L82 PathProgramCache]: Analyzing trace with hash 31075, now seen corresponding path program 1 times [2019-10-22 09:01:59,086 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:59,086 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839815000] [2019-10-22 09:01:59,086 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:59,086 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:59,086 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:59,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:59,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:59,106 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:01:59,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:59,106 INFO L82 PathProgramCache]: Analyzing trace with hash 53, now seen corresponding path program 1 times [2019-10-22 09:01:59,106 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:59,106 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541704516] [2019-10-22 09:01:59,106 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:59,106 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:59,107 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:59,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:59,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:59,119 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:01:59,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:59,120 INFO L82 PathProgramCache]: Analyzing trace with hash 963347, now seen corresponding path program 1 times [2019-10-22 09:01:59,120 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:59,120 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844643144] [2019-10-22 09:01:59,120 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:59,121 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:59,121 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:59,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:59,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:59,130 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:01:59,140 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 09:01:59,140 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 09:01:59,140 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 09:01:59,140 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 09:01:59,140 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-10-22 09:01:59,140 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 09:01:59,141 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 09:01:59,141 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 09:01:59,141 INFO L131 ssoRankerPreferences]: Filename of dumped script: b.18.c_Iteration5_Loop [2019-10-22 09:01:59,141 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 09:01:59,141 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 09:01:59,142 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:59,145 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:59,151 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:59,211 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 09:01:59,211 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_516fd8a8-5432-485a-8dab-1b5ee0d9d4d6/bin/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 [2019-10-22 09:01:59,216 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 09:01:59,216 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-10-22 09:01:59,222 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-10-22 09:01:59,222 INFO L440 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_516fd8a8-5432-485a-8dab-1b5ee0d9d4d6/bin/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 [2019-10-22 09:01:59,227 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 09:01:59,227 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_516fd8a8-5432-485a-8dab-1b5ee0d9d4d6/bin/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 [2019-10-22 09:01:59,236 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-10-22 09:01:59,236 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-10-22 09:01:59,253 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-10-22 09:01:59,265 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 09:01:59,265 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 09:01:59,265 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 09:01:59,265 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 09:01:59,266 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-10-22 09:01:59,266 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 09:01:59,266 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 09:01:59,266 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 09:01:59,266 INFO L131 ssoRankerPreferences]: Filename of dumped script: b.18.c_Iteration5_Loop [2019-10-22 09:01:59,266 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 09:01:59,266 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 09:01:59,267 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:59,271 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:59,282 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:59,325 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 09:01:59,325 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-10-22 09:01:59,325 INFO L120 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 [2019-10-22 09:01:59,326 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:01:59,326 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:01:59,327 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:01:59,327 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:01:59,330 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-10-22 09:01:59,330 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 09:01:59,338 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 09:01:59,339 INFO L120 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 [2019-10-22 09:01:59,339 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:01:59,339 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 09:01:59,339 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:01:59,340 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:01:59,340 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:01:59,340 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 09:01:59,340 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 09:01:59,348 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-10-22 09:01:59,354 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-10-22 09:01:59,355 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2019-10-22 09:01:59,355 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-10-22 09:01:59,355 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-10-22 09:01:59,355 INFO L510 LassoAnalysis]: Proved termination. [2019-10-22 09:01:59,356 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2019-10-22 09:01:59,356 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-10-22 09:01:59,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:59,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:59,379 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 09:01:59,380 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:01:59,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:59,384 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-22 09:01:59,385 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:01:59,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:01:59,385 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 [2019-10-22 09:01:59,385 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 12 transitions. cyclomatic complexity: 5 Second operand 2 states. [2019-10-22 09:01:59,391 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 12 transitions. cyclomatic complexity: 5. Second operand 2 states. Result 10 states and 13 transitions. Complement of second has 2 states. [2019-10-22 09:01:59,392 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2019-10-22 09:01:59,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-10-22 09:01:59,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 7 transitions. [2019-10-22 09:01:59,393 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 7 transitions. Stem has 3 letters. Loop has 1 letters. [2019-10-22 09:01:59,393 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 09:01:59,393 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 7 transitions. Stem has 4 letters. Loop has 1 letters. [2019-10-22 09:01:59,394 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 09:01:59,394 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 7 transitions. Stem has 3 letters. Loop has 2 letters. [2019-10-22 09:01:59,394 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 09:01:59,394 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 13 transitions. [2019-10-22 09:01:59,395 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-10-22 09:01:59,395 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 0 states and 0 transitions. [2019-10-22 09:01:59,395 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-10-22 09:01:59,395 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-10-22 09:01:59,395 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-10-22 09:01:59,395 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 09:01:59,395 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 09:01:59,395 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 09:01:59,395 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 09:01:59,396 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2019-10-22 09:01:59,396 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-10-22 09:01:59,396 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-10-22 09:01:59,396 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-10-22 09:01:59,407 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.10 09:01:59 BoogieIcfgContainer [2019-10-22 09:01:59,407 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-10-22 09:01:59,408 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 09:01:59,408 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 09:01:59,408 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 09:01:59,408 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:01:57" (3/4) ... [2019-10-22 09:01:59,414 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-10-22 09:01:59,414 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 09:01:59,416 INFO L168 Benchmark]: Toolchain (without parser) took 1982.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 944.7 MB in the beginning and 972.4 MB in the end (delta: -27.7 MB). Peak memory consumption was 111.2 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:59,421 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:01:59,422 INFO L168 Benchmark]: CACSL2BoogieTranslator took 329.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -188.7 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:59,422 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.53 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:01:59,422 INFO L168 Benchmark]: Boogie Preprocessor took 16.14 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:01:59,423 INFO L168 Benchmark]: RCFGBuilder took 169.02 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:59,423 INFO L168 Benchmark]: BuchiAutomizer took 1425.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 979.3 MB in the end (delta: 135.8 MB). Peak memory consumption was 135.8 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:59,424 INFO L168 Benchmark]: Witness Printer took 6.72 ms. Allocated memory is still 1.2 GB. Free memory was 979.3 MB in the beginning and 972.4 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:59,429 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 329.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -188.7 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 30.53 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.14 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 169.02 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1425.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 979.3 MB in the end (delta: 135.8 MB). Peak memory consumption was 135.8 MB. Max. memory is 11.5 GB. * Witness Printer took 6.72 ms. Allocated memory is still 1.2 GB. Free memory was 979.3 MB in the beginning and 972.4 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. 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 (3 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function y and consists of 4 locations. One deterministic module has affine ranking function x and consists of 2 locations. 3 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.3s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 0.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 6 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 12 states and ocurred in iteration 3. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 1/1 HoareTripleCheckerStatistics: 34 SDtfs, 25 SDslu, 7 SDs, 0 SdLazy, 34 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI3 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital14 mio100 ax193 hnf96 lsp51 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq148 hnf94 smp88 dnf100 smp100 tf112 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 13ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...