./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/openbsd_cbzero-alloca-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_6fa3239b-ec50-48f0-9bf2-10d752bc1905/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_6fa3239b-ec50-48f0-9bf2-10d752bc1905/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6fa3239b-ec50-48f0-9bf2-10d752bc1905/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6fa3239b-ec50-48f0-9bf2-10d752bc1905/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/openbsd_cbzero-alloca-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_6fa3239b-ec50-48f0-9bf2-10d752bc1905/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6fa3239b-ec50-48f0-9bf2-10d752bc1905/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 a9159a955cf189961722bfb66b0369c050bac9ac ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 20:20:08,004 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 20:20:08,006 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 20:20:08,086 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 20:20:08,111 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 20:20:08,118 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 20:20:08,122 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 20:20:08,126 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 20:20:08,129 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 20:20:08,130 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 20:20:08,133 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 20:20:08,137 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 20:20:08,138 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 20:20:08,148 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 20:20:08,150 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 20:20:08,153 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 20:20:08,155 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 20:20:08,158 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 20:20:08,167 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 20:20:08,174 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 20:20:08,181 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 20:20:08,183 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 20:20:08,185 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 20:20:08,187 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 20:20:08,194 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 20:20:08,195 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 20:20:08,195 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 20:20:08,198 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 20:20:08,199 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 20:20:08,200 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 20:20:08,201 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 20:20:08,202 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 20:20:08,204 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 20:20:08,206 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 20:20:08,207 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 20:20:08,208 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 20:20:08,209 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 20:20:08,209 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 20:20:08,209 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 20:20:08,211 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 20:20:08,211 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 20:20:08,214 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6fa3239b-ec50-48f0-9bf2-10d752bc1905/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-11-29 20:20:08,270 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 20:20:08,270 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 20:20:08,272 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 20:20:08,273 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 20:20:08,273 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 20:20:08,274 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 20:20:08,274 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 20:20:08,274 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 20:20:08,274 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 20:20:08,275 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 20:20:08,276 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 20:20:08,276 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 20:20:08,277 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 20:20:08,277 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 20:20:08,277 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 20:20:08,278 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 20:20:08,278 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 20:20:08,278 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 20:20:08,278 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 20:20:08,279 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 20:20:08,279 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 20:20:08,279 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 20:20:08,279 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 20:20:08,280 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 20:20:08,280 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 20:20:08,280 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 20:20:08,280 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 20:20:08,281 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 20:20:08,281 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 20:20:08,284 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 20:20:08,284 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_6fa3239b-ec50-48f0-9bf2-10d752bc1905/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_6fa3239b-ec50-48f0-9bf2-10d752bc1905/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a9159a955cf189961722bfb66b0369c050bac9ac [2020-11-29 20:20:08,551 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 20:20:08,586 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 20:20:08,589 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 20:20:08,590 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 20:20:08,592 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 20:20:08,593 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6fa3239b-ec50-48f0-9bf2-10d752bc1905/bin/uautomizer/../../sv-benchmarks/c/termination-memory-alloca/openbsd_cbzero-alloca-1.i [2020-11-29 20:20:08,677 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6fa3239b-ec50-48f0-9bf2-10d752bc1905/bin/uautomizer/data/5839b6503/a7ccde31cb214baf86e754573a2666e6/FLAG598e3733d [2020-11-29 20:20:09,204 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 20:20:09,205 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6fa3239b-ec50-48f0-9bf2-10d752bc1905/sv-benchmarks/c/termination-memory-alloca/openbsd_cbzero-alloca-1.i [2020-11-29 20:20:09,229 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6fa3239b-ec50-48f0-9bf2-10d752bc1905/bin/uautomizer/data/5839b6503/a7ccde31cb214baf86e754573a2666e6/FLAG598e3733d [2020-11-29 20:20:09,518 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6fa3239b-ec50-48f0-9bf2-10d752bc1905/bin/uautomizer/data/5839b6503/a7ccde31cb214baf86e754573a2666e6 [2020-11-29 20:20:09,524 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 20:20:09,526 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 20:20:09,528 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 20:20:09,529 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 20:20:09,533 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 20:20:09,534 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:20:09" (1/1) ... [2020-11-29 20:20:09,537 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c195543 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:20:09, skipping insertion in model container [2020-11-29 20:20:09,537 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:20:09" (1/1) ... [2020-11-29 20:20:09,546 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 20:20:09,608 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 20:20:10,033 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:20:10,042 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 20:20:10,077 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:20:10,142 INFO L208 MainTranslator]: Completed translation [2020-11-29 20:20:10,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:20:10 WrapperNode [2020-11-29 20:20:10,143 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 20:20:10,146 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 20:20:10,146 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 20:20:10,146 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 20:20:10,155 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:20:10" (1/1) ... [2020-11-29 20:20:10,179 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:20:10" (1/1) ... [2020-11-29 20:20:10,201 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 20:20:10,203 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 20:20:10,203 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 20:20:10,203 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 20:20:10,211 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:20:10" (1/1) ... [2020-11-29 20:20:10,211 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:20:10" (1/1) ... [2020-11-29 20:20:10,229 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:20:10" (1/1) ... [2020-11-29 20:20:10,229 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:20:10" (1/1) ... [2020-11-29 20:20:10,233 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:20:10" (1/1) ... [2020-11-29 20:20:10,238 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:20:10" (1/1) ... [2020-11-29 20:20:10,244 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:20:10" (1/1) ... [2020-11-29 20:20:10,246 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 20:20:10,249 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 20:20:10,249 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 20:20:10,250 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 20:20:10,251 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:20:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6fa3239b-ec50-48f0-9bf2-10d752bc1905/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 20:20:10,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-29 20:20:10,321 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 20:20:10,322 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 20:20:10,322 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 20:20:10,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 20:20:10,692 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 20:20:10,693 INFO L298 CfgBuilder]: Removed 7 assume(true) statements. [2020-11-29 20:20:10,695 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:20:10 BoogieIcfgContainer [2020-11-29 20:20:10,695 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 20:20:10,697 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 20:20:10,697 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 20:20:10,700 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 20:20:10,701 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 20:20:10,701 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 08:20:09" (1/3) ... [2020-11-29 20:20:10,703 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@30f7fcb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 08:20:10, skipping insertion in model container [2020-11-29 20:20:10,703 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 20:20:10,703 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:20:10" (2/3) ... [2020-11-29 20:20:10,703 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@30f7fcb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 08:20:10, skipping insertion in model container [2020-11-29 20:20:10,704 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 20:20:10,704 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:20:10" (3/3) ... [2020-11-29 20:20:10,705 INFO L373 chiAutomizerObserver]: Analyzing ICFG openbsd_cbzero-alloca-1.i [2020-11-29 20:20:10,769 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 20:20:10,770 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 20:20:10,770 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 20:20:10,770 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 20:20:10,770 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 20:20:10,770 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 20:20:10,770 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 20:20:10,771 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 20:20:10,783 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2020-11-29 20:20:10,802 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-29 20:20:10,802 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:20:10,802 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:20:10,809 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-11-29 20:20:10,809 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 20:20:10,810 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 20:20:10,810 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2020-11-29 20:20:10,813 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-29 20:20:10,813 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:20:10,813 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:20:10,814 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-11-29 20:20:10,814 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 20:20:10,821 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 3#L-1true havoc main_#res;havoc main_#t~nondet4, main_#t~nondet5, main_#t~malloc6.base, main_#t~malloc6.offset, main_~length~0, main_~n~0, main_~nondetArea~0.base, main_~nondetArea~0.offset;main_~length~0 := main_#t~nondet4;havoc main_#t~nondet4;main_~n~0 := main_#t~nondet5;havoc main_#t~nondet5; 7#L557true assume !(main_~length~0 < 1); 11#L557-2true assume !(main_~n~0 < 1); 13#L560-1true assume !(main_~n~0 > main_~length~0);call main_#t~malloc6.base, main_#t~malloc6.offset := #Ultimate.allocOnStack(main_~length~0);main_~nondetArea~0.base, main_~nondetArea~0.offset := main_#t~malloc6.base, main_#t~malloc6.offset;cbzero_#in~b.base, cbzero_#in~b.offset, cbzero_#in~length := main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~n~0;havoc cbzero_#t~post3.base, cbzero_#t~post3.offset, cbzero_#t~post2, cbzero_~b.base, cbzero_~b.offset, cbzero_~length, cbzero_~p~0.base, cbzero_~p~0.offset;cbzero_~b.base, cbzero_~b.offset := cbzero_#in~b.base, cbzero_#in~b.offset;cbzero_~length := cbzero_#in~length;havoc cbzero_~p~0.base, cbzero_~p~0.offset;cbzero_~p~0.base, cbzero_~p~0.offset := cbzero_~b.base, cbzero_~b.offset; 4#L551-3true [2020-11-29 20:20:10,821 INFO L796 eck$LassoCheckResult]: Loop: 4#L551-3true cbzero_#t~post2 := cbzero_~length;cbzero_~length := cbzero_#t~post2 - 1; 10#L551-1true assume !!(0 != cbzero_#t~post2 % 4294967296);havoc cbzero_#t~post2;cbzero_#t~post3.base, cbzero_#t~post3.offset := cbzero_~p~0.base, cbzero_~p~0.offset;cbzero_~p~0.base, cbzero_~p~0.offset := cbzero_#t~post3.base, 1 + cbzero_#t~post3.offset;call write~int(0, cbzero_#t~post3.base, cbzero_#t~post3.offset, 1);havoc cbzero_#t~post3.base, cbzero_#t~post3.offset; 4#L551-3true [2020-11-29 20:20:10,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:20:10,829 INFO L82 PathProgramCache]: Analyzing trace with hash 28695882, now seen corresponding path program 1 times [2020-11-29 20:20:10,840 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:20:10,841 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222795026] [2020-11-29 20:20:10,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:20:10,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:20:10,958 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:20:10,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:20:10,991 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:20:11,014 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:20:11,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:20:11,018 INFO L82 PathProgramCache]: Analyzing trace with hash 1702, now seen corresponding path program 1 times [2020-11-29 20:20:11,019 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:20:11,019 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633973963] [2020-11-29 20:20:11,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:20:11,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:20:11,047 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:20:11,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:20:11,066 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:20:11,072 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:20:11,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:20:11,085 INFO L82 PathProgramCache]: Analyzing trace with hash 1806939567, now seen corresponding path program 1 times [2020-11-29 20:20:11,086 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:20:11,086 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381751774] [2020-11-29 20:20:11,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:20:11,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:20:11,105 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:20:11,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:20:11,135 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:20:11,140 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:20:11,246 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2020-11-29 20:20:11,680 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2020-11-29 20:20:11,881 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2020-11-29 20:20:11,909 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 20:20:11,910 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 20:20:11,910 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 20:20:11,910 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 20:20:11,910 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 20:20:11,910 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:20:11,911 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 20:20:11,911 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 20:20:11,911 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cbzero-alloca-1.i_Iteration1_Lasso [2020-11-29 20:20:11,911 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 20:20:11,911 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 20:20:11,950 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 20:20:11,959 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 20:20:11,964 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 20:20:11,969 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 20:20:11,974 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 20:20:11,979 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 20:20:12,233 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 43 [2020-11-29 20:20:12,362 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 35 [2020-11-29 20:20:12,363 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 20:20:12,372 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 20:20:12,378 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 20:20:12,384 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 20:20:12,399 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 20:20:12,404 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 20:20:12,831 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 33 [2020-11-29 20:20:13,208 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 20:20:13,212 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6fa3239b-ec50-48f0-9bf2-10d752bc1905/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 20:20:13,227 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 20:20:13,230 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:20:13,230 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:20:13,230 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:20:13,231 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:20:13,231 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:20:13,233 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:20:13,233 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:20:13,236 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6fa3239b-ec50-48f0-9bf2-10d752bc1905/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) [2020-11-29 20:20:13,280 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 20:20:13,282 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:20:13,282 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:20:13,282 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:20:13,282 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:20:13,283 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:20:13,284 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:20:13,284 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:20:13,286 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6fa3239b-ec50-48f0-9bf2-10d752bc1905/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 20:20:13,332 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 20:20:13,334 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:20:13,334 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:20:13,335 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:20:13,335 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:20:13,335 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:20:13,336 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:20:13,336 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 20:20:13,351 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6fa3239b-ec50-48f0-9bf2-10d752bc1905/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) [2020-11-29 20:20:13,391 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 20:20:13,393 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:20:13,394 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:20:13,394 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:20:13,394 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:20:13,394 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:20:13,395 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:20:13,395 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:20:13,398 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6fa3239b-ec50-48f0-9bf2-10d752bc1905/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 20:20:13,439 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 20:20:13,441 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:20:13,442 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:20:13,442 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:20:13,442 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:20:13,442 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:20:13,443 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:20:13,443 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:20:13,446 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6fa3239b-ec50-48f0-9bf2-10d752bc1905/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) [2020-11-29 20:20:13,487 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 20:20:13,489 INFO L338 nArgumentSynthesizer]: Template has degree 0. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:20:13,490 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:20:13,490 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:20:13,490 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:20:13,495 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 20:20:13,495 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 20:20:13,515 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6fa3239b-ec50-48f0-9bf2-10d752bc1905/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) [2020-11-29 20:20:13,553 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 20:20:13,556 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:20:13,557 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:20:13,557 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:20:13,557 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:20:13,568 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 20:20:13,569 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:20:13,580 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6fa3239b-ec50-48f0-9bf2-10d752bc1905/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) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:20:13,607 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 20:20:13,608 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:20:13,608 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:20:13,608 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:20:13,608 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:20:13,615 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 20:20:13,616 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 20:20:13,633 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6fa3239b-ec50-48f0-9bf2-10d752bc1905/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 20:20:13,680 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 20:20:13,682 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:20:13,682 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:20:13,682 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:20:13,683 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:20:13,683 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:20:13,686 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:20:13,686 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:20:13,688 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6fa3239b-ec50-48f0-9bf2-10d752bc1905/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) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:20:13,731 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 20:20:13,735 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:20:13,735 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:20:13,735 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:20:13,735 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:20:13,764 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 20:20:13,764 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 20:20:13,786 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 20:20:13,899 INFO L443 ModelExtractionUtils]: Simplification made 25 calls to the SMT solver. [2020-11-29 20:20:13,899 INFO L444 ModelExtractionUtils]: 10 out of 37 variables were initially zero. Simplification set additionally 22 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6fa3239b-ec50-48f0-9bf2-10d752bc1905/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) [2020-11-29 20:20:13,912 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:20:13,917 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-11-29 20:20:13,917 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 20:20:13,918 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cbzero_~length, v_rep(select #length ULTIMATE.start_main_#t~malloc6.base)_1) = 2*ULTIMATE.start_cbzero_~length + 3*v_rep(select #length ULTIMATE.start_main_#t~malloc6.base)_1 Supporting invariants [2*ULTIMATE.start_cbzero_~length + 3*ULTIMATE.start_cbzero_~p~0.offset >= 0] [2020-11-29 20:20:13,972 INFO L297 tatePredicateManager]: 2 out of 4 supporting invariants were superfluous and have been removed [2020-11-29 20:20:13,987 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-29 20:20:14,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:20:14,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:20:14,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 18 conjunts are in the unsatisfiable core [2020-11-29 20:20:14,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:20:14,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:20:14,118 WARN L261 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 13 conjunts are in the unsatisfiable core [2020-11-29 20:20:14,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:20:14,150 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 20:20:14,166 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2020-11-29 20:20:14,167 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states. Second operand 4 states. [2020-11-29 20:20:14,307 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states.. Second operand 4 states. Result 21 states and 25 transitions. Complement of second has 7 states. [2020-11-29 20:20:14,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-29 20:20:14,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-29 20:20:14,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 17 transitions. [2020-11-29 20:20:14,310 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 5 letters. Loop has 2 letters. [2020-11-29 20:20:14,311 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 20:20:14,311 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 7 letters. Loop has 2 letters. [2020-11-29 20:20:14,311 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 20:20:14,311 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 5 letters. Loop has 4 letters. [2020-11-29 20:20:14,311 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 20:20:14,312 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 25 transitions. [2020-11-29 20:20:14,314 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 20:20:14,321 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 0 states and 0 transitions. [2020-11-29 20:20:14,322 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-29 20:20:14,322 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-29 20:20:14,323 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-29 20:20:14,323 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 20:20:14,323 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 20:20:14,323 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 20:20:14,323 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 20:20:14,323 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 20:20:14,324 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-29 20:20:14,324 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 20:20:14,324 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-29 20:20:14,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 08:20:14 BoogieIcfgContainer [2020-11-29 20:20:14,330 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 20:20:14,331 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 20:20:14,331 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 20:20:14,331 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 20:20:14,332 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:20:10" (3/4) ... [2020-11-29 20:20:14,335 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 20:20:14,335 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 20:20:14,338 INFO L168 Benchmark]: Toolchain (without parser) took 4809.97 ms. Allocated memory was 88.1 MB in the beginning and 119.5 MB in the end (delta: 31.5 MB). Free memory was 56.1 MB in the beginning and 92.1 MB in the end (delta: -36.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:20:14,339 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 88.1 MB. Free memory was 47.8 MB in the beginning and 47.8 MB in the end (delta: 67.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:20:14,340 INFO L168 Benchmark]: CACSL2BoogieTranslator took 615.37 ms. Allocated memory was 88.1 MB in the beginning and 119.5 MB in the end (delta: 31.5 MB). Free memory was 55.9 MB in the beginning and 87.3 MB in the end (delta: -31.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 20:20:14,341 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.50 ms. Allocated memory is still 119.5 MB. Free memory was 87.3 MB in the beginning and 85.9 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:20:14,342 INFO L168 Benchmark]: Boogie Preprocessor took 45.03 ms. Allocated memory is still 119.5 MB. Free memory was 85.9 MB in the beginning and 84.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 20:20:14,348 INFO L168 Benchmark]: RCFGBuilder took 446.86 ms. Allocated memory is still 119.5 MB. Free memory was 84.5 MB in the beginning and 71.3 MB in the end (delta: 13.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-29 20:20:14,349 INFO L168 Benchmark]: BuchiAutomizer took 3633.52 ms. Allocated memory is still 119.5 MB. Free memory was 71.3 MB in the beginning and 92.1 MB in the end (delta: -20.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:20:14,350 INFO L168 Benchmark]: Witness Printer took 4.78 ms. Allocated memory is still 119.5 MB. Free memory is still 92.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:20:14,355 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 88.1 MB. Free memory was 47.8 MB in the beginning and 47.8 MB in the end (delta: 67.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 615.37 ms. Allocated memory was 88.1 MB in the beginning and 119.5 MB in the end (delta: 31.5 MB). Free memory was 55.9 MB in the beginning and 87.3 MB in the end (delta: -31.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 56.50 ms. Allocated memory is still 119.5 MB. Free memory was 87.3 MB in the beginning and 85.9 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 45.03 ms. Allocated memory is still 119.5 MB. Free memory was 85.9 MB in the beginning and 84.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 446.86 ms. Allocated memory is still 119.5 MB. Free memory was 84.5 MB in the beginning and 71.3 MB in the end (delta: 13.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 3633.52 ms. Allocated memory is still 119.5 MB. Free memory was 71.3 MB in the beginning and 92.1 MB in the end (delta: -20.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 4.78 ms. Allocated memory is still 119.5 MB. Free memory is still 92.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length * 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 2 * length + 3 * unknown-#length-unknown[__builtin_alloca (length * sizeof(char))] and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.5s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 3.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 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: 9 SDtfs, 13 SDslu, 5 SDs, 0 SdLazy, 11 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital123 mio100 ax114 hnf98 lsp82 ukn93 mio100 lsp58 div158 bol100 ite100 ukn100 eq175 hnf72 smp94 dnf100 smp100 tf100 neg99 sie101 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 35ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...