./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/recursive/EvenOdd03.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_9e4c0b64-3dd9-49f1-ad8d-6b26d7aeefb3/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_9e4c0b64-3dd9-49f1-ad8d-6b26d7aeefb3/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9e4c0b64-3dd9-49f1-ad8d-6b26d7aeefb3/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9e4c0b64-3dd9-49f1-ad8d-6b26d7aeefb3/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/recursive/EvenOdd03.c -s /tmp/vcloud-vcloud-master/worker/run_dir_9e4c0b64-3dd9-49f1-ad8d-6b26d7aeefb3/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9e4c0b64-3dd9-49f1-ad8d-6b26d7aeefb3/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 32bit --witnessprinter.graph.data.programhash 37ac3151caa4af47a1f06dea7853d99d19358e76 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 19:57:20,037 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 19:57:20,042 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 19:57:20,131 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 19:57:20,153 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 19:57:20,155 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 19:57:20,158 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 19:57:20,161 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 19:57:20,164 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 19:57:20,165 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 19:57:20,167 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 19:57:20,171 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 19:57:20,172 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 19:57:20,174 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 19:57:20,176 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 19:57:20,178 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 19:57:20,180 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 19:57:20,181 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 19:57:20,184 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 19:57:20,187 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 19:57:20,190 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 19:57:20,192 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 19:57:20,194 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 19:57:20,196 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 19:57:20,200 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 19:57:20,201 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 19:57:20,201 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 19:57:20,203 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 19:57:20,204 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 19:57:20,206 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 19:57:20,206 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:57:20,208 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:57:20,209 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:57:20,210 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:57:20,212 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:57:20,213 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:57:20,214 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:57:20,215 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:57:20,215 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:57:20,217 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:57:20,218 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:57:20,219 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9e4c0b64-3dd9-49f1-ad8d-6b26d7aeefb3/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 19:57:20,255 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:57:20,255 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:57:20,257 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:57:20,257 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:57:20,258 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 19:57:20,258 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 19:57:20,258 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 19:57:20,259 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 19:57:20,259 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 19:57:20,259 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 19:57:20,260 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 19:57:20,260 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:57:20,260 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 19:57:20,261 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 19:57:20,261 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 19:57:20,261 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 19:57:20,262 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:57:20,262 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 19:57:20,262 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 19:57:20,263 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 19:57:20,263 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 19:57:20,263 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 19:57:20,263 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 19:57:20,264 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:57:20,264 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 19:57:20,264 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:57:20,265 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 19:57:20,265 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 19:57:20,266 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:57:20,266 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 19:57:20,266 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 19:57:20,267 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 19:57:20,268 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 19:57:20,268 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_9e4c0b64-3dd9-49f1-ad8d-6b26d7aeefb3/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_9e4c0b64-3dd9-49f1-ad8d-6b26d7aeefb3/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 37ac3151caa4af47a1f06dea7853d99d19358e76 [2020-11-29 19:57:20,600 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:57:20,649 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:57:20,655 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:57:20,656 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:57:20,658 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:57:20,659 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9e4c0b64-3dd9-49f1-ad8d-6b26d7aeefb3/bin/uautomizer/../../sv-benchmarks/c/recursive/EvenOdd03.c [2020-11-29 19:57:20,752 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9e4c0b64-3dd9-49f1-ad8d-6b26d7aeefb3/bin/uautomizer/data/6dfc2b75d/189bf2b00b3e440f8cc81144ecfb6e8e/FLAG0daa65951 [2020-11-29 19:57:21,332 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:57:21,333 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9e4c0b64-3dd9-49f1-ad8d-6b26d7aeefb3/sv-benchmarks/c/recursive/EvenOdd03.c [2020-11-29 19:57:21,346 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9e4c0b64-3dd9-49f1-ad8d-6b26d7aeefb3/bin/uautomizer/data/6dfc2b75d/189bf2b00b3e440f8cc81144ecfb6e8e/FLAG0daa65951 [2020-11-29 19:57:21,656 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9e4c0b64-3dd9-49f1-ad8d-6b26d7aeefb3/bin/uautomizer/data/6dfc2b75d/189bf2b00b3e440f8cc81144ecfb6e8e [2020-11-29 19:57:21,659 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:57:21,661 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 19:57:21,663 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:57:21,664 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:57:21,668 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:57:21,669 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:57:21" (1/1) ... [2020-11-29 19:57:21,671 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@262e7dfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:57:21, skipping insertion in model container [2020-11-29 19:57:21,672 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:57:21" (1/1) ... [2020-11-29 19:57:21,681 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:57:21,698 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:57:21,942 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:57:21,968 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 19:57:22,000 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:57:22,022 INFO L208 MainTranslator]: Completed translation [2020-11-29 19:57:22,024 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:57:22 WrapperNode [2020-11-29 19:57:22,026 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:57:22,028 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 19:57:22,028 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 19:57:22,029 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 19:57:22,040 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:57:22" (1/1) ... [2020-11-29 19:57:22,053 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:57:22" (1/1) ... [2020-11-29 19:57:22,076 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 19:57:22,078 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 19:57:22,078 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 19:57:22,079 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 19:57:22,089 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:57:22" (1/1) ... [2020-11-29 19:57:22,089 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:57:22" (1/1) ... [2020-11-29 19:57:22,103 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:57:22" (1/1) ... [2020-11-29 19:57:22,103 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:57:22" (1/1) ... [2020-11-29 19:57:22,108 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:57:22" (1/1) ... [2020-11-29 19:57:22,116 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:57:22" (1/1) ... [2020-11-29 19:57:22,124 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:57:22" (1/1) ... [2020-11-29 19:57:22,126 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 19:57:22,133 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 19:57:22,133 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 19:57:22,133 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 19:57:22,135 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:57:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9e4c0b64-3dd9-49f1-ad8d-6b26d7aeefb3/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 [2020-11-29 19:57:22,242 INFO L130 BoogieDeclarations]: Found specification of procedure isEven [2020-11-29 19:57:22,242 INFO L138 BoogieDeclarations]: Found implementation of procedure isEven [2020-11-29 19:57:22,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 19:57:22,243 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 19:57:22,243 INFO L130 BoogieDeclarations]: Found specification of procedure isOdd [2020-11-29 19:57:22,244 INFO L138 BoogieDeclarations]: Found implementation of procedure isOdd [2020-11-29 19:57:22,245 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 19:57:22,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 19:57:22,601 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 19:57:22,605 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-11-29 19:57:22,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:57:22 BoogieIcfgContainer [2020-11-29 19:57:22,607 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 19:57:22,610 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 19:57:22,610 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 19:57:22,635 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 19:57:22,636 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:57:22,637 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 07:57:21" (1/3) ... [2020-11-29 19:57:22,638 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@12a96ea2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 07:57:22, skipping insertion in model container [2020-11-29 19:57:22,639 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:57:22,639 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:57:22" (2/3) ... [2020-11-29 19:57:22,640 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@12a96ea2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 07:57:22, skipping insertion in model container [2020-11-29 19:57:22,640 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:57:22,640 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:57:22" (3/3) ... [2020-11-29 19:57:22,642 INFO L373 chiAutomizerObserver]: Analyzing ICFG EvenOdd03.c [2020-11-29 19:57:22,718 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 19:57:22,718 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 19:57:22,718 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 19:57:22,718 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 19:57:22,719 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 19:57:22,719 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 19:57:22,719 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 19:57:22,719 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 19:57:22,739 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states. [2020-11-29 19:57:22,786 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2020-11-29 19:57:22,789 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:57:22,789 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:57:22,798 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-11-29 19:57:22,799 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:57:22,799 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 19:57:22,800 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states. [2020-11-29 19:57:22,809 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2020-11-29 19:57:22,810 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:57:22,810 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:57:22,810 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-11-29 19:57:22,811 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:57:22,821 INFO L794 eck$LassoCheckResult]: Stem: 19#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(12);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 8#L-1true havoc main_#res;havoc main_#t~nondet9, main_#t~ret10, main_~n~0, main_~result~0, main_~mod~0;main_~n~0 := main_#t~nondet9;havoc main_#t~nondet9; 18#L41true assume !(main_~n~0 < 0); 22#L44true call main_#t~ret10 := isEven(main_~n~0);< 6#isEvenENTRYtrue [2020-11-29 19:57:22,821 INFO L796 eck$LassoCheckResult]: Loop: 6#isEvenENTRYtrue ~n := #in~n; 16#L29true assume !(0 == ~n); 10#L31true assume !(1 == ~n); 27#L34true call #t~ret8 := isOdd(~n - 1);< 12#isOddENTRYtrue ~n := #in~n; 9#L19true assume !(0 == ~n); 17#L21true assume !(1 == ~n); 3#L24true call #t~ret7 := isEven(~n - 1);< 6#isEvenENTRYtrue [2020-11-29 19:57:22,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:57:22,843 INFO L82 PathProgramCache]: Analyzing trace with hash 1664502, now seen corresponding path program 1 times [2020-11-29 19:57:22,855 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:57:22,856 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916961943] [2020-11-29 19:57:22,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:57:23,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:57:23,026 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:57:23,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:57:23,075 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:57:23,109 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:57:23,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:57:23,115 INFO L82 PathProgramCache]: Analyzing trace with hash 2014448971, now seen corresponding path program 1 times [2020-11-29 19:57:23,115 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:57:23,116 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426831781] [2020-11-29 19:57:23,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:57:23,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:57:23,143 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:57:23,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:57:23,156 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:57:23,163 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:57:23,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:57:23,166 INFO L82 PathProgramCache]: Analyzing trace with hash 880062016, now seen corresponding path program 1 times [2020-11-29 19:57:23,166 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:57:23,166 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201514181] [2020-11-29 19:57:23,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:57:23,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:57:23,206 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:57:23,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:57:23,242 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:57:23,261 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:57:23,532 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 19:57:23,533 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 19:57:23,534 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 19:57:23,534 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 19:57:23,534 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-29 19:57:23,534 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:57:23,535 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 19:57:23,535 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 19:57:23,535 INFO L133 ssoRankerPreferences]: Filename of dumped script: EvenOdd03.c_Iteration1_Loop [2020-11-29 19:57:23,535 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 19:57:23,536 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 19:57:23,557 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:57:23,564 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:57:23,567 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:57:23,574 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:57:23,583 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:57:23,611 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:57:23,616 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:57:23,620 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:57:23,812 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 14 [2020-11-29 19:57:23,830 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 19:57:23,831 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9e4c0b64-3dd9-49f1-ad8d-6b26d7aeefb3/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) [2020-11-29 19:57:23,838 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 19:57:23,838 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:57:23,848 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 19:57:23,848 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {isOdd_#in~n=0} Honda state: {isOdd_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9e4c0b64-3dd9-49f1-ad8d-6b26d7aeefb3/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 [2020-11-29 19:57:23,896 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 19:57:23,896 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-29 19:57:23,901 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 19:57:23,901 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {isOdd_~n=0} Honda state: {isOdd_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9e4c0b64-3dd9-49f1-ad8d-6b26d7aeefb3/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 [2020-11-29 19:57:23,929 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 19:57:23,929 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-29 19:57:23,936 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 19:57:23,936 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {isEven_#t~ret8=0} Honda state: {isEven_#t~ret8=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9e4c0b64-3dd9-49f1-ad8d-6b26d7aeefb3/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 [2020-11-29 19:57:23,971 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 19:57:23,971 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-29 19:57:23,974 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 19:57:23,974 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {isEven_#res=0} Honda state: {isEven_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9e4c0b64-3dd9-49f1-ad8d-6b26d7aeefb3/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) [2020-11-29 19:57:24,031 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 19:57:24,032 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9e4c0b64-3dd9-49f1-ad8d-6b26d7aeefb3/bin/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 [2020-11-29 19:57:24,074 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-29 19:57:24,074 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-29 19:57:24,107 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 19:57:24,107 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {isEven_#in~n=-8} Honda state: {isEven_#in~n=-8} Generalized eigenvectors: [{isEven_#in~n=-1}, {isEven_#in~n=0}, {isEven_#in~n=-1}] Lambdas: [1, 0, 1] Nus: [1, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9e4c0b64-3dd9-49f1-ad8d-6b26d7aeefb3/bin/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 [2020-11-29 19:57:24,158 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 19:57:24,158 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-29 19:57:24,163 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 19:57:24,163 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {isOdd_#res=0} Honda state: {isOdd_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9e4c0b64-3dd9-49f1-ad8d-6b26d7aeefb3/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 19:57:24,224 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 19:57:24,224 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:57:24,229 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 19:57:24,229 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {isEven_~n=0} Honda state: {isEven_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9e4c0b64-3dd9-49f1-ad8d-6b26d7aeefb3/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 19:57:24,281 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 19:57:24,281 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:57:24,285 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 19:57:24,285 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {isOdd_#t~ret7=0} Honda state: {isOdd_#t~ret7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2020-11-29 19:57:24,538 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2020-11-29 19:57:24,829 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 19:57:24,829 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 19:57:24,829 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 19:57:24,829 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 19:57:24,829 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 19:57:24,830 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:57:24,830 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 19:57:24,830 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 19:57:24,830 INFO L133 ssoRankerPreferences]: Filename of dumped script: EvenOdd03.c_Iteration1_Lasso [2020-11-29 19:57:24,830 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 19:57:24,830 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 19:57:24,837 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:57:24,844 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:57:24,850 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:57:24,855 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:57:24,860 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:57:24,865 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:57:24,870 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:57:24,874 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:57:24,879 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:57:24,884 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:57:24,889 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:57:24,905 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:57:24,910 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:57:24,917 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:57:24,948 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:57:24,953 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:57:25,088 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:57:25,093 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:57:25,097 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:57:25,101 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:57:25,105 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:57:25,110 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:57:25,115 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:57:25,119 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:57:25,123 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:57:25,127 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:57:25,131 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:57:25,136 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:57:25,140 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:57:25,146 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:57:25,718 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 19:57:25,724 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9e4c0b64-3dd9-49f1-ad8d-6b26d7aeefb3/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 19:57:25,741 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 [2020-11-29 19:57:25,743 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:57:25,744 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:57:25,745 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:57:25,745 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:57:25,745 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:57:25,748 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:57:25,748 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:57:25,751 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9e4c0b64-3dd9-49f1-ad8d-6b26d7aeefb3/bin/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 [2020-11-29 19:57:25,808 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 [2020-11-29 19:57:25,811 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:57:25,811 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:57:25,811 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:57:25,811 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:57:25,816 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:57:25,817 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:57:25,822 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9e4c0b64-3dd9-49f1-ad8d-6b26d7aeefb3/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 19:57:25,877 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 [2020-11-29 19:57:25,880 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:57:25,880 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:57:25,880 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:57:25,880 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:57:25,880 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:57:25,882 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:57:25,882 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:57:25,886 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9e4c0b64-3dd9-49f1-ad8d-6b26d7aeefb3/bin/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 [2020-11-29 19:57:25,942 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 [2020-11-29 19:57:25,945 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:57:25,946 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:57:25,946 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:57:25,946 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:57:25,946 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:57:25,947 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:57:25,947 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:57:25,952 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9e4c0b64-3dd9-49f1-ad8d-6b26d7aeefb3/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 19:57:26,008 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 [2020-11-29 19:57:26,010 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:57:26,010 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:57:26,010 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:57:26,011 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:57:26,011 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:57:26,014 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:57:26,014 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:57:26,016 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9e4c0b64-3dd9-49f1-ad8d-6b26d7aeefb3/bin/uautomizer/z3 Starting monitored process 16 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 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:57:26,064 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 [2020-11-29 19:57:26,065 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:57:26,066 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:57:26,066 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:57:26,066 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:57:26,066 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:57:26,067 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:57:26,067 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:57:26,068 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9e4c0b64-3dd9-49f1-ad8d-6b26d7aeefb3/bin/uautomizer/z3 Starting monitored process 17 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 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:57:26,099 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 [2020-11-29 19:57:26,101 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:57:26,101 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:57:26,102 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:57:26,102 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:57:26,102 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:57:26,103 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:57:26,103 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:57:26,107 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9e4c0b64-3dd9-49f1-ad8d-6b26d7aeefb3/bin/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 19:57:26,159 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 [2020-11-29 19:57:26,161 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:57:26,162 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:57:26,162 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:57:26,162 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:57:26,170 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:57:26,174 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:57:26,179 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9e4c0b64-3dd9-49f1-ad8d-6b26d7aeefb3/bin/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 19:57:26,235 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 [2020-11-29 19:57:26,246 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:57:26,246 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:57:26,246 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:57:26,246 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:57:26,246 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:57:26,247 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:57:26,248 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:57:26,250 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9e4c0b64-3dd9-49f1-ad8d-6b26d7aeefb3/bin/uautomizer/z3 Starting monitored process 20 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 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:57:26,297 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 [2020-11-29 19:57:26,299 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:57:26,299 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:57:26,299 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:57:26,300 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:57:26,300 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:57:26,301 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:57:26,301 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:57:26,303 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9e4c0b64-3dd9-49f1-ad8d-6b26d7aeefb3/bin/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 19:57:26,368 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 [2020-11-29 19:57:26,370 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:57:26,370 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:57:26,370 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:57:26,370 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:57:26,370 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:57:26,371 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:57:26,371 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:57:26,373 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9e4c0b64-3dd9-49f1-ad8d-6b26d7aeefb3/bin/uautomizer/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 19:57:26,424 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 [2020-11-29 19:57:26,426 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:57:26,426 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:57:26,427 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-11-29 19:57:26,427 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:57:26,440 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2020-11-29 19:57:26,440 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2020-11-29 19:57:26,462 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 19:57:26,523 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2020-11-29 19:57:26,523 INFO L444 ModelExtractionUtils]: 4 out of 11 variables were initially zero. Simplification set additionally 4 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9e4c0b64-3dd9-49f1-ad8d-6b26d7aeefb3/bin/uautomizer/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 19:57:26,529 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:57:26,567 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2020-11-29 19:57:26,567 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 19:57:26,568 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(isEven_#in~n) = 1*isEven_#in~n Supporting invariants [1*isEven_#in~n >= 0] [2020-11-29 19:57:26,725 INFO L297 tatePredicateManager]: 7 out of 8 supporting invariants were superfluous and have been removed [2020-11-29 19:57:26,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:57:26,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:57:26,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-29 19:57:26,818 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:57:26,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:57:26,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 18 conjunts are in the unsatisfiable core [2020-11-29 19:57:26,864 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:57:27,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:57:27,092 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 7 loop predicates [2020-11-29 19:57:27,093 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states. Second operand 9 states. [2020-11-29 19:57:27,600 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states.. Second operand 9 states. Result 78 states and 91 transitions. Complement of second has 25 states. [2020-11-29 19:57:27,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 10 states 2 stem states 7 non-accepting loop states 1 accepting loop states [2020-11-29 19:57:27,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-11-29 19:57:27,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 27 transitions. [2020-11-29 19:57:27,606 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 27 transitions. Stem has 4 letters. Loop has 8 letters. [2020-11-29 19:57:27,608 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:57:27,608 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 27 transitions. Stem has 12 letters. Loop has 8 letters. [2020-11-29 19:57:27,609 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:57:27,609 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 27 transitions. Stem has 4 letters. Loop has 16 letters. [2020-11-29 19:57:27,609 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:57:27,610 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 78 states and 91 transitions. [2020-11-29 19:57:27,624 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 19:57:27,629 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 78 states to 0 states and 0 transitions. [2020-11-29 19:57:27,632 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-29 19:57:27,633 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-29 19:57:27,633 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-29 19:57:27,633 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:57:27,633 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 19:57:27,633 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 19:57:27,634 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 19:57:27,634 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 19:57:27,634 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-29 19:57:27,634 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 19:57:27,634 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-29 19:57:27,640 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 07:57:27 BoogieIcfgContainer [2020-11-29 19:57:27,640 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 19:57:27,641 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 19:57:27,642 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 19:57:27,642 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 19:57:27,642 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:57:22" (3/4) ... [2020-11-29 19:57:27,645 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 19:57:27,646 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 19:57:27,648 INFO L168 Benchmark]: Toolchain (without parser) took 5985.12 ms. Allocated memory was 92.3 MB in the beginning and 144.7 MB in the end (delta: 52.4 MB). Free memory was 64.1 MB in the beginning and 77.1 MB in the end (delta: -13.0 MB). Peak memory consumption was 38.7 MB. Max. memory is 16.1 GB. [2020-11-29 19:57:27,649 INFO L168 Benchmark]: CDTParser took 1.06 ms. Allocated memory is still 92.3 MB. Free memory is still 49.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:57:27,651 INFO L168 Benchmark]: CACSL2BoogieTranslator took 363.34 ms. Allocated memory was 92.3 MB in the beginning and 119.5 MB in the end (delta: 27.3 MB). Free memory was 64.1 MB in the beginning and 97.9 MB in the end (delta: -33.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 19:57:27,658 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.60 ms. Allocated memory is still 119.5 MB. Free memory was 97.9 MB in the beginning and 96.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:57:27,658 INFO L168 Benchmark]: Boogie Preprocessor took 53.43 ms. Allocated memory is still 119.5 MB. Free memory was 96.4 MB in the beginning and 95.8 MB in the end (delta: 584.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:57:27,659 INFO L168 Benchmark]: RCFGBuilder took 474.96 ms. Allocated memory is still 119.5 MB. Free memory was 95.8 MB in the beginning and 82.6 MB in the end (delta: 13.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-29 19:57:27,660 INFO L168 Benchmark]: BuchiAutomizer took 5030.62 ms. Allocated memory was 119.5 MB in the beginning and 144.7 MB in the end (delta: 25.2 MB). Free memory was 82.6 MB in the beginning and 77.1 MB in the end (delta: 5.5 MB). Peak memory consumption was 33.4 MB. Max. memory is 16.1 GB. [2020-11-29 19:57:27,660 INFO L168 Benchmark]: Witness Printer took 4.28 ms. Allocated memory is still 144.7 MB. Free memory is still 77.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:57:27,670 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.06 ms. Allocated memory is still 92.3 MB. Free memory is still 49.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 363.34 ms. Allocated memory was 92.3 MB in the beginning and 119.5 MB in the end (delta: 27.3 MB). Free memory was 64.1 MB in the beginning and 97.9 MB in the end (delta: -33.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 48.60 ms. Allocated memory is still 119.5 MB. Free memory was 97.9 MB in the beginning and 96.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 53.43 ms. Allocated memory is still 119.5 MB. Free memory was 96.4 MB in the beginning and 95.8 MB in the end (delta: 584.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 474.96 ms. Allocated memory is still 119.5 MB. Free memory was 95.8 MB in the beginning and 82.6 MB in the end (delta: 13.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 5030.62 ms. Allocated memory was 119.5 MB in the beginning and 144.7 MB in the end (delta: 25.2 MB). Free memory was 82.6 MB in the beginning and 77.1 MB in the end (delta: 5.5 MB). Peak memory consumption was 33.4 MB. Max. memory is 16.1 GB. * Witness Printer took 4.28 ms. Allocated memory is still 144.7 MB. Free memory is still 77.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function \old(n) and consists of 10 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.9s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 3.9s. Construction of modules took 0.1s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 14 SDtfs, 30 SDslu, 28 SDs, 0 SdLazy, 108 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital78 mio100 ax100 hnf90 lsp86 ukn73 mio100 lsp76 div100 bol100 ite100 ukn100 eq191 hnf97 smp100 dnf495 smp16 tf103 neg94 sie112 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 148ms VariablesStem: 1 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 7 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 0 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...