./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loops/while_infinite_loop_4.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_fcc102bd-df02-435f-8dbb-ab2933836516/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_fcc102bd-df02-435f-8dbb-ab2933836516/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_fcc102bd-df02-435f-8dbb-ab2933836516/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_fcc102bd-df02-435f-8dbb-ab2933836516/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/while_infinite_loop_4.c -s /tmp/vcloud-vcloud-master/worker/run_dir_fcc102bd-df02-435f-8dbb-ab2933836516/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_fcc102bd-df02-435f-8dbb-ab2933836516/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 cf11ae0ce80f2ff20585fcb052cccfcf6fefbf1f .............................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 02:57:40,253 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 02:57:40,256 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 02:57:40,310 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 02:57:40,311 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 02:57:40,312 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 02:57:40,314 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 02:57:40,320 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 02:57:40,330 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 02:57:40,335 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 02:57:40,337 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 02:57:40,339 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 02:57:40,339 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 02:57:40,343 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 02:57:40,345 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 02:57:40,347 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 02:57:40,348 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 02:57:40,349 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 02:57:40,355 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 02:57:40,362 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 02:57:40,364 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 02:57:40,365 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 02:57:40,368 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 02:57:40,369 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 02:57:40,377 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 02:57:40,378 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 02:57:40,378 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 02:57:40,380 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 02:57:40,381 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 02:57:40,382 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 02:57:40,382 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 02:57:40,384 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 02:57:40,386 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 02:57:40,387 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 02:57:40,388 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 02:57:40,388 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 02:57:40,389 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 02:57:40,389 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 02:57:40,390 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 02:57:40,391 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 02:57:40,393 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 02:57:40,394 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_fcc102bd-df02-435f-8dbb-ab2933836516/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-28 02:57:40,431 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 02:57:40,432 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 02:57:40,433 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 02:57:40,434 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 02:57:40,434 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 02:57:40,434 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-28 02:57:40,434 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-28 02:57:40,434 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-28 02:57:40,435 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-28 02:57:40,435 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-28 02:57:40,436 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-28 02:57:40,436 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 02:57:40,436 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 02:57:40,437 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 02:57:40,437 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 02:57:40,437 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 02:57:40,437 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 02:57:40,438 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-28 02:57:40,438 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-28 02:57:40,438 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-28 02:57:40,438 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 02:57:40,438 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 02:57:40,439 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-28 02:57:40,439 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 02:57:40,439 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-28 02:57:40,439 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 02:57:40,439 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 02:57:40,440 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-28 02:57:40,440 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 02:57:40,441 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 02:57:40,442 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 02:57:40,442 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-28 02:57:40,443 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-28 02:57:40,443 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_fcc102bd-df02-435f-8dbb-ab2933836516/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_fcc102bd-df02-435f-8dbb-ab2933836516/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cf11ae0ce80f2ff20585fcb052cccfcf6fefbf1f [2020-11-28 02:57:40,697 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 02:57:40,731 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 02:57:40,733 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 02:57:40,735 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 02:57:40,741 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 02:57:40,742 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_fcc102bd-df02-435f-8dbb-ab2933836516/bin/uautomizer/../../sv-benchmarks/c/loops/while_infinite_loop_4.c [2020-11-28 02:57:40,823 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fcc102bd-df02-435f-8dbb-ab2933836516/bin/uautomizer/data/7a8dcbb3f/b134165a1a9d49af9665c44dfd24e0d9/FLAG545ffd2da [2020-11-28 02:57:41,369 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 02:57:41,370 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_fcc102bd-df02-435f-8dbb-ab2933836516/sv-benchmarks/c/loops/while_infinite_loop_4.c [2020-11-28 02:57:41,383 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fcc102bd-df02-435f-8dbb-ab2933836516/bin/uautomizer/data/7a8dcbb3f/b134165a1a9d49af9665c44dfd24e0d9/FLAG545ffd2da [2020-11-28 02:57:41,752 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_fcc102bd-df02-435f-8dbb-ab2933836516/bin/uautomizer/data/7a8dcbb3f/b134165a1a9d49af9665c44dfd24e0d9 [2020-11-28 02:57:41,755 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 02:57:41,756 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 02:57:41,757 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 02:57:41,758 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 02:57:41,762 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 02:57:41,763 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:57:41" (1/1) ... [2020-11-28 02:57:41,765 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c064274 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:41, skipping insertion in model container [2020-11-28 02:57:41,766 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:57:41" (1/1) ... [2020-11-28 02:57:41,773 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 02:57:41,787 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 02:57:41,923 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 02:57:41,932 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 02:57:41,945 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 02:57:41,959 INFO L208 MainTranslator]: Completed translation [2020-11-28 02:57:41,960 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:41 WrapperNode [2020-11-28 02:57:41,960 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 02:57:41,961 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 02:57:41,961 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 02:57:41,961 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 02:57:41,969 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:41" (1/1) ... [2020-11-28 02:57:41,975 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:41" (1/1) ... [2020-11-28 02:57:41,991 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 02:57:41,992 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 02:57:41,992 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 02:57:41,992 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 02:57:42,000 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:41" (1/1) ... [2020-11-28 02:57:42,001 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:41" (1/1) ... [2020-11-28 02:57:42,002 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:41" (1/1) ... [2020-11-28 02:57:42,002 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:41" (1/1) ... [2020-11-28 02:57:42,005 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:41" (1/1) ... [2020-11-28 02:57:42,009 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:41" (1/1) ... [2020-11-28 02:57:42,010 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:41" (1/1) ... [2020-11-28 02:57:42,011 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 02:57:42,012 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 02:57:42,013 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 02:57:42,013 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 02:57:42,015 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:41" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fcc102bd-df02-435f-8dbb-ab2933836516/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 [2020-11-28 02:57:42,097 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 02:57:42,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 02:57:42,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 02:57:42,100 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 02:57:42,435 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 02:57:42,435 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-11-28 02:57:42,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:57:42 BoogieIcfgContainer [2020-11-28 02:57:42,436 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 02:57:42,440 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-28 02:57:42,440 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-28 02:57:42,443 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-28 02:57:42,444 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 02:57:42,444 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 02:57:41" (1/3) ... [2020-11-28 02:57:42,445 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2af25578 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 02:57:42, skipping insertion in model container [2020-11-28 02:57:42,445 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 02:57:42,445 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:41" (2/3) ... [2020-11-28 02:57:42,446 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2af25578 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 02:57:42, skipping insertion in model container [2020-11-28 02:57:42,446 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 02:57:42,446 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:57:42" (3/3) ... [2020-11-28 02:57:42,450 INFO L373 chiAutomizerObserver]: Analyzing ICFG while_infinite_loop_4.c [2020-11-28 02:57:42,552 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-28 02:57:42,552 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-28 02:57:42,552 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-28 02:57:42,553 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 02:57:42,553 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 02:57:42,553 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-28 02:57:42,553 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 02:57:42,553 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-28 02:57:42,573 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2020-11-28 02:57:42,599 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-11-28 02:57:42,599 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 02:57:42,600 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 02:57:42,606 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-11-28 02:57:42,606 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-11-28 02:57:42,606 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-28 02:57:42,606 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2020-11-28 02:57:42,609 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-11-28 02:57:42,609 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 02:57:42,609 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 02:57:42,610 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-11-28 02:57:42,610 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-11-28 02:57:42,616 INFO L794 eck$LassoCheckResult]: Stem: 8#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(24);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~x~0 := 0; 7#L-1true havoc main_#res; 18#L6-2true [2020-11-28 02:57:42,617 INFO L796 eck$LassoCheckResult]: Loop: 18#L6-2true assume !false; 3#L16loopEntrytrue assume false; 17#L16-2true __VERIFIER_assert_#in~cond := (if 0 == ~x~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 5#L6true assume !(0 == __VERIFIER_assert_~cond); 18#L6-2true [2020-11-28 02:57:42,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:42,622 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2020-11-28 02:57:42,632 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:42,632 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466658460] [2020-11-28 02:57:42,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:42,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:42,747 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:42,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:42,775 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:42,801 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:57:42,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:42,807 INFO L82 PathProgramCache]: Analyzing trace with hash 1269329, now seen corresponding path program 1 times [2020-11-28 02:57:42,807 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:42,808 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119780843] [2020-11-28 02:57:42,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:42,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:42,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:57:42,846 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119780843] [2020-11-28 02:57:42,847 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:57:42,847 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 02:57:42,847 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828036079] [2020-11-28 02:57:42,854 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-28 02:57:42,855 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:57:42,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 02:57:42,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 02:57:42,872 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 2 states. [2020-11-28 02:57:42,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:57:42,879 INFO L93 Difference]: Finished difference Result 7 states and 7 transitions. [2020-11-28 02:57:42,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 02:57:42,881 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7 states and 7 transitions. [2020-11-28 02:57:42,882 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-11-28 02:57:42,886 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7 states to 6 states and 6 transitions. [2020-11-28 02:57:42,887 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2020-11-28 02:57:42,888 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2020-11-28 02:57:42,888 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 6 transitions. [2020-11-28 02:57:42,889 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-28 02:57:42,889 INFO L691 BuchiCegarLoop]: Abstraction has 6 states and 6 transitions. [2020-11-28 02:57:42,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 6 transitions. [2020-11-28 02:57:42,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2020-11-28 02:57:42,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-11-28 02:57:42,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2020-11-28 02:57:42,915 INFO L714 BuchiCegarLoop]: Abstraction has 6 states and 6 transitions. [2020-11-28 02:57:42,915 INFO L594 BuchiCegarLoop]: Abstraction has 6 states and 6 transitions. [2020-11-28 02:57:42,915 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-28 02:57:42,915 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 6 transitions. [2020-11-28 02:57:42,916 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-11-28 02:57:42,917 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 02:57:42,917 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 02:57:42,917 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-11-28 02:57:42,917 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-11-28 02:57:42,918 INFO L794 eck$LassoCheckResult]: Stem: 33#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(24);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~x~0 := 0; 31#L-1 havoc main_#res; 32#L6-2 [2020-11-28 02:57:42,918 INFO L796 eck$LassoCheckResult]: Loop: 32#L6-2 assume !false; 34#L16loopEntry assume !false;~x~0 := 1; 35#L16-2 __VERIFIER_assert_#in~cond := (if 0 == ~x~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 36#L6 assume !(0 == __VERIFIER_assert_~cond); 32#L6-2 [2020-11-28 02:57:42,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:42,919 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2020-11-28 02:57:42,919 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:42,919 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489854784] [2020-11-28 02:57:42,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:42,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:42,949 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:42,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:42,975 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:42,981 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:57:42,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:42,982 INFO L82 PathProgramCache]: Analyzing trace with hash 1271251, now seen corresponding path program 1 times [2020-11-28 02:57:42,982 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:42,983 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345634511] [2020-11-28 02:57:42,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:42,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:43,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:57:43,041 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345634511] [2020-11-28 02:57:43,041 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:57:43,041 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 02:57:43,042 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905131056] [2020-11-28 02:57:43,042 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-28 02:57:43,042 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:57:43,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 02:57:43,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 02:57:43,043 INFO L87 Difference]: Start difference. First operand 6 states and 6 transitions. cyclomatic complexity: 1 Second operand 4 states. [2020-11-28 02:57:43,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:57:43,081 INFO L93 Difference]: Finished difference Result 6 states and 5 transitions. [2020-11-28 02:57:43,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 02:57:43,081 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 6 states and 5 transitions. [2020-11-28 02:57:43,082 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-28 02:57:43,082 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 6 states to 0 states and 0 transitions. [2020-11-28 02:57:43,082 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-28 02:57:43,083 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-28 02:57:43,083 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-28 02:57:43,083 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-28 02:57:43,083 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 02:57:43,083 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 02:57:43,083 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 02:57:43,083 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-28 02:57:43,083 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-28 02:57:43,083 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-28 02:57:43,084 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-28 02:57:43,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 02:57:43 BoogieIcfgContainer [2020-11-28 02:57:43,089 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-28 02:57:43,090 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 02:57:43,090 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 02:57:43,090 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 02:57:43,090 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:57:42" (3/4) ... [2020-11-28 02:57:43,093 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-28 02:57:43,093 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 02:57:43,095 INFO L168 Benchmark]: Toolchain (without parser) took 1338.36 ms. Allocated memory is still 94.4 MB. Free memory was 67.5 MB in the beginning and 51.8 MB in the end (delta: 15.7 MB). Peak memory consumption was 15.3 MB. Max. memory is 16.1 GB. [2020-11-28 02:57:43,096 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 75.5 MB. Free memory is still 43.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 02:57:43,097 INFO L168 Benchmark]: CACSL2BoogieTranslator took 202.74 ms. Allocated memory is still 94.4 MB. Free memory was 67.3 MB in the beginning and 58.3 MB in the end (delta: 9.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 02:57:43,098 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.58 ms. Allocated memory is still 94.4 MB. Free memory was 58.3 MB in the beginning and 56.9 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 02:57:43,099 INFO L168 Benchmark]: Boogie Preprocessor took 19.60 ms. Allocated memory is still 94.4 MB. Free memory was 56.9 MB in the beginning and 55.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 02:57:43,101 INFO L168 Benchmark]: RCFGBuilder took 424.10 ms. Allocated memory is still 94.4 MB. Free memory was 55.8 MB in the beginning and 44.9 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 02:57:43,101 INFO L168 Benchmark]: BuchiAutomizer took 649.30 ms. Allocated memory is still 94.4 MB. Free memory was 44.8 MB in the beginning and 52.1 MB in the end (delta: -7.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 02:57:43,104 INFO L168 Benchmark]: Witness Printer took 3.94 ms. Allocated memory is still 94.4 MB. Free memory was 52.1 MB in the beginning and 51.8 MB in the end (delta: 329.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 02:57:43,112 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 75.5 MB. Free memory is still 43.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 202.74 ms. Allocated memory is still 94.4 MB. Free memory was 67.3 MB in the beginning and 58.3 MB in the end (delta: 9.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 30.58 ms. Allocated memory is still 94.4 MB. Free memory was 58.3 MB in the beginning and 56.9 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 19.60 ms. Allocated memory is still 94.4 MB. Free memory was 56.9 MB in the beginning and 55.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 424.10 ms. Allocated memory is still 94.4 MB. Free memory was 55.8 MB in the beginning and 44.9 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 649.30 ms. Allocated memory is still 94.4 MB. Free memory was 44.8 MB in the beginning and 52.1 MB in the end (delta: -7.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 3.94 ms. Allocated memory is still 94.4 MB. Free memory was 52.1 MB in the beginning and 51.8 MB in the end (delta: 329.3 kB). 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 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic). 2 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.5s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 0.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 6 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 11 SDtfs, 1 SDslu, 6 SDs, 0 SdLazy, 2 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI2 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: 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...