./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-numeric/java_LogBuiltIn.c --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_83b60ab3-e714-4be8-972f-86cec76eb2a4/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_83b60ab3-e714-4be8-972f-86cec76eb2a4/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_83b60ab3-e714-4be8-972f-86cec76eb2a4/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_83b60ab3-e714-4be8-972f-86cec76eb2a4/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-numeric/java_LogBuiltIn.c -s /tmp/vcloud-vcloud-master/worker/run_dir_83b60ab3-e714-4be8-972f-86cec76eb2a4/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_83b60ab3-e714-4be8-972f-86cec76eb2a4/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 d28857c86a3c83fc75b1b8cf8125f1c52a370911 .................................................................................................................................................................................................................................................................................................................................................................................................. 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 22:41:58,882 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 22:41:58,885 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 22:41:58,954 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 22:41:58,956 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 22:41:58,961 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 22:41:58,962 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 22:41:58,965 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 22:41:58,967 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 22:41:58,968 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 22:41:58,969 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 22:41:58,971 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 22:41:58,972 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 22:41:58,973 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 22:41:58,974 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 22:41:58,976 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 22:41:58,977 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 22:41:58,978 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 22:41:58,981 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 22:41:58,983 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 22:41:58,985 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 22:41:58,987 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 22:41:58,989 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 22:41:58,990 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 22:41:58,994 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 22:41:58,994 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 22:41:58,995 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 22:41:58,996 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 22:41:58,997 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 22:41:58,998 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 22:41:58,999 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 22:41:59,000 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 22:41:59,001 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 22:41:59,002 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 22:41:59,003 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 22:41:59,004 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 22:41:59,004 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 22:41:59,005 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 22:41:59,005 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 22:41:59,006 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 22:41:59,007 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 22:41:59,008 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_83b60ab3-e714-4be8-972f-86cec76eb2a4/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-11-29 22:41:59,044 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 22:41:59,045 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 22:41:59,046 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 22:41:59,046 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 22:41:59,047 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 22:41:59,047 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 22:41:59,047 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 22:41:59,048 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 22:41:59,048 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 22:41:59,048 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 22:41:59,048 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 22:41:59,049 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 22:41:59,049 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 22:41:59,049 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 22:41:59,049 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 22:41:59,049 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 22:41:59,050 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 22:41:59,050 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 22:41:59,050 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 22:41:59,050 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 22:41:59,050 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 22:41:59,051 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 22:41:59,051 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 22:41:59,051 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 22:41:59,051 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 22:41:59,052 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 22:41:59,052 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 22:41:59,052 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 22:41:59,052 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 22:41:59,053 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 22:41:59,054 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_83b60ab3-e714-4be8-972f-86cec76eb2a4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_83b60ab3-e714-4be8-972f-86cec76eb2a4/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d28857c86a3c83fc75b1b8cf8125f1c52a370911 [2020-11-29 22:41:59,314 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 22:41:59,347 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 22:41:59,352 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 22:41:59,354 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 22:41:59,355 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 22:41:59,356 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_83b60ab3-e714-4be8-972f-86cec76eb2a4/bin/uautomizer/../../sv-benchmarks/c/termination-numeric/java_LogBuiltIn.c [2020-11-29 22:41:59,474 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_83b60ab3-e714-4be8-972f-86cec76eb2a4/bin/uautomizer/data/28f634257/d4bc450a0b354686ab245f3d0a51e3b0/FLAG6ca062a3a [2020-11-29 22:41:59,999 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 22:42:00,000 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_83b60ab3-e714-4be8-972f-86cec76eb2a4/sv-benchmarks/c/termination-numeric/java_LogBuiltIn.c [2020-11-29 22:42:00,012 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_83b60ab3-e714-4be8-972f-86cec76eb2a4/bin/uautomizer/data/28f634257/d4bc450a0b354686ab245f3d0a51e3b0/FLAG6ca062a3a [2020-11-29 22:42:00,378 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_83b60ab3-e714-4be8-972f-86cec76eb2a4/bin/uautomizer/data/28f634257/d4bc450a0b354686ab245f3d0a51e3b0 [2020-11-29 22:42:00,380 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 22:42:00,382 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 22:42:00,384 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 22:42:00,384 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 22:42:00,388 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 22:42:00,389 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:42:00" (1/1) ... [2020-11-29 22:42:00,391 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fa704f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:42:00, skipping insertion in model container [2020-11-29 22:42:00,391 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:42:00" (1/1) ... [2020-11-29 22:42:00,399 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 22:42:00,410 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 22:42:00,601 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:42:00,624 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 22:42:00,636 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:42:00,648 INFO L208 MainTranslator]: Completed translation [2020-11-29 22:42:00,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:42:00 WrapperNode [2020-11-29 22:42:00,649 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 22:42:00,650 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 22:42:00,650 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 22:42:00,651 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 22:42:00,658 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:42:00" (1/1) ... [2020-11-29 22:42:00,663 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:42:00" (1/1) ... [2020-11-29 22:42:00,678 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 22:42:00,679 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 22:42:00,680 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 22:42:00,680 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 22:42:00,687 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:42:00" (1/1) ... [2020-11-29 22:42:00,688 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:42:00" (1/1) ... [2020-11-29 22:42:00,688 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:42:00" (1/1) ... [2020-11-29 22:42:00,689 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:42:00" (1/1) ... [2020-11-29 22:42:00,691 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:42:00" (1/1) ... [2020-11-29 22:42:00,694 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:42:00" (1/1) ... [2020-11-29 22:42:00,695 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:42:00" (1/1) ... [2020-11-29 22:42:00,696 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 22:42:00,697 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 22:42:00,697 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 22:42:00,697 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 22:42:00,699 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:42:00" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_83b60ab3-e714-4be8-972f-86cec76eb2a4/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 22:42:00,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 22:42:00,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 22:42:00,897 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 22:42:00,898 INFO L298 CfgBuilder]: Removed 7 assume(true) statements. [2020-11-29 22:42:00,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:42:00 BoogieIcfgContainer [2020-11-29 22:42:00,899 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 22:42:00,900 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 22:42:00,900 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 22:42:00,903 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 22:42:00,904 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 22:42:00,904 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 10:42:00" (1/3) ... [2020-11-29 22:42:00,906 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@47db9479 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 10:42:00, skipping insertion in model container [2020-11-29 22:42:00,906 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 22:42:00,906 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:42:00" (2/3) ... [2020-11-29 22:42:00,907 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@47db9479 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 10:42:00, skipping insertion in model container [2020-11-29 22:42:00,907 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 22:42:00,907 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:42:00" (3/3) ... [2020-11-29 22:42:00,908 INFO L373 chiAutomizerObserver]: Analyzing ICFG java_LogBuiltIn.c [2020-11-29 22:42:00,954 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 22:42:00,954 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 22:42:00,955 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 22:42:00,955 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 22:42:00,955 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 22:42:00,955 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 22:42:00,955 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 22:42:00,955 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 22:42:00,967 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2020-11-29 22:42:00,984 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-11-29 22:42:00,985 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 22:42:00,985 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 22:42:00,990 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-11-29 22:42:00,990 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-11-29 22:42:00,990 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 22:42:00,991 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2020-11-29 22:42:00,992 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-11-29 22:42:00,992 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 22:42:00,992 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 22:42:00,992 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-11-29 22:42:00,992 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-11-29 22:42:00,999 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet1, main_#t~ret2;mlog_#in~x := main_#t~nondet1;havoc mlog_#res;havoc mlog_#t~post0, mlog_~x, mlog_~res~0;mlog_~x := mlog_#in~x;mlog_~res~0 := 0; 3#L7-2true [2020-11-29 22:42:01,000 INFO L796 eck$LassoCheckResult]: Loop: 3#L7-2true assume !!(mlog_~x > 1);mlog_~x := (if mlog_~x < 0 && 0 != mlog_~x % 2 then 1 + mlog_~x / 2 else mlog_~x / 2);mlog_#t~post0 := mlog_~res~0;mlog_~res~0 := 1 + mlog_#t~post0;havoc mlog_#t~post0; 3#L7-2true [2020-11-29 22:42:01,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:42:01,006 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2020-11-29 22:42:01,015 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:42:01,016 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689028391] [2020-11-29 22:42:01,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:42:01,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:42:01,089 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:42:01,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:42:01,094 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:42:01,108 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:42:01,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:42:01,110 INFO L82 PathProgramCache]: Analyzing trace with hash 41, now seen corresponding path program 1 times [2020-11-29 22:42:01,110 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:42:01,111 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544525644] [2020-11-29 22:42:01,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:42:01,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:42:01,132 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:42:01,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:42:01,141 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:42:01,143 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:42:01,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:42:01,145 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2020-11-29 22:42:01,145 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:42:01,146 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808642979] [2020-11-29 22:42:01,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:42:01,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:42:01,156 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:42:01,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:42:01,166 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:42:01,168 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:42:01,293 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2020-11-29 22:42:01,395 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 22:42:01,395 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 22:42:01,395 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 22:42:01,396 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 22:42:01,396 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-29 22:42:01,396 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:42:01,396 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 22:42:01,396 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 22:42:01,396 INFO L133 ssoRankerPreferences]: Filename of dumped script: java_LogBuiltIn.c_Iteration1_Loop [2020-11-29 22:42:01,397 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 22:42:01,397 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 22:42:01,416 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 22:42:01,427 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 22:42:01,439 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 22:42:01,548 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 22:42:01,549 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_83b60ab3-e714-4be8-972f-86cec76eb2a4/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:42:01,562 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 22:42:01,562 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_83b60ab3-e714-4be8-972f-86cec76eb2a4/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:42:01,600 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-29 22:42:01,601 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-29 22:42:01,626 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 22:42:01,626 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_mlog_~res~0=0} Honda state: {ULTIMATE.start_mlog_~res~0=0} Generalized eigenvectors: [{ULTIMATE.start_mlog_~res~0=4}, {ULTIMATE.start_mlog_~res~0=-1}, {ULTIMATE.start_mlog_~res~0=-2}] Lambdas: [1, 1, 1] Nus: [0, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_83b60ab3-e714-4be8-972f-86cec76eb2a4/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 22:42:01,650 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 22:42:01,650 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_83b60ab3-e714-4be8-972f-86cec76eb2a4/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 22:42:01,677 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-29 22:42:01,677 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:42:01,739 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-29 22:42:01,741 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 22:42:01,742 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 22:42:01,742 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 22:42:01,742 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 22:42:01,742 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 22:42:01,742 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:42:01,742 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 22:42:01,742 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 22:42:01,743 INFO L133 ssoRankerPreferences]: Filename of dumped script: java_LogBuiltIn.c_Iteration1_Loop [2020-11-29 22:42:01,743 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 22:42:01,743 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 22:42:01,744 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 22:42:01,753 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 22:42:01,763 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 22:42:01,863 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 22:42:01,868 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_83b60ab3-e714-4be8-972f-86cec76eb2a4/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 22:42:01,873 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 22:42:01,876 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:42:01,876 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 22:42:01,877 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:42:01,877 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:42:01,877 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:42:01,882 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 22:42:01,882 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 22:42:01,889 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_83b60ab3-e714-4be8-972f-86cec76eb2a4/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:42:01,947 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 22:42:01,949 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:42:01,949 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 22:42:01,949 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:42:01,949 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:42:01,949 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:42:01,952 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 22:42:01,953 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 22:42:01,960 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 22:42:01,964 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-11-29 22:42:01,965 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_83b60ab3-e714-4be8-972f-86cec76eb2a4/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:42:01,973 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-29 22:42:01,974 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-29 22:42:01,974 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 22:42:01,974 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_mlog_~x) = 1*ULTIMATE.start_mlog_~x Supporting invariants [] [2020-11-29 22:42:01,999 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-29 22:42:02,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:42:02,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:42:02,095 INFO L263 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 22:42:02,096 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:42:02,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:42:02,111 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 22:42:02,112 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:42:02,112 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 22:42:02,132 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2020-11-29 22:42:02,133 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states. Second operand 2 states. [2020-11-29 22:42:02,173 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states.. Second operand 2 states. Result 18 states and 21 transitions. Complement of second has 5 states. [2020-11-29 22:42:02,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-29 22:42:02,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-11-29 22:42:02,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2020-11-29 22:42:02,177 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 1 letters. Loop has 1 letters. [2020-11-29 22:42:02,178 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 22:42:02,178 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 2 letters. Loop has 1 letters. [2020-11-29 22:42:02,178 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 22:42:02,178 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 1 letters. Loop has 2 letters. [2020-11-29 22:42:02,178 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 22:42:02,179 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 21 transitions. [2020-11-29 22:42:02,182 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 22:42:02,184 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 0 states and 0 transitions. [2020-11-29 22:42:02,185 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-29 22:42:02,186 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-29 22:42:02,186 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-29 22:42:02,187 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 22:42:02,187 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 22:42:02,187 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 22:42:02,187 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 22:42:02,187 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 22:42:02,187 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-29 22:42:02,188 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 22:42:02,188 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-29 22:42:02,193 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 10:42:02 BoogieIcfgContainer [2020-11-29 22:42:02,193 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 22:42:02,194 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 22:42:02,194 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 22:42:02,195 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 22:42:02,195 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:42:00" (3/4) ... [2020-11-29 22:42:02,198 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 22:42:02,199 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 22:42:02,200 INFO L168 Benchmark]: Toolchain (without parser) took 1817.76 ms. Allocated memory was 119.5 MB in the beginning and 169.9 MB in the end (delta: 50.3 MB). Free memory was 85.3 MB in the beginning and 138.3 MB in the end (delta: -53.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 22:42:02,201 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 73.4 MB. Free memory was 30.9 MB in the beginning and 30.9 MB in the end (delta: 10.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 22:42:02,202 INFO L168 Benchmark]: CACSL2BoogieTranslator took 265.22 ms. Allocated memory is still 119.5 MB. Free memory was 85.1 MB in the beginning and 95.9 MB in the end (delta: -10.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 22:42:02,203 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.40 ms. Allocated memory is still 119.5 MB. Free memory was 95.9 MB in the beginning and 94.5 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 22:42:02,203 INFO L168 Benchmark]: Boogie Preprocessor took 17.07 ms. Allocated memory is still 119.5 MB. Free memory was 94.5 MB in the beginning and 93.9 MB in the end (delta: 636.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 22:42:02,204 INFO L168 Benchmark]: RCFGBuilder took 202.25 ms. Allocated memory is still 119.5 MB. Free memory was 93.6 MB in the beginning and 85.3 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 22:42:02,205 INFO L168 Benchmark]: BuchiAutomizer took 1293.46 ms. Allocated memory was 119.5 MB in the beginning and 169.9 MB in the end (delta: 50.3 MB). Free memory was 85.3 MB in the beginning and 138.3 MB in the end (delta: -53.0 MB). Peak memory consumption was 434.0 kB. Max. memory is 16.1 GB. [2020-11-29 22:42:02,205 INFO L168 Benchmark]: Witness Printer took 4.65 ms. Allocated memory is still 169.9 MB. Free memory is still 138.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 22:42:02,209 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 73.4 MB. Free memory was 30.9 MB in the beginning and 30.9 MB in the end (delta: 10.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 265.22 ms. Allocated memory is still 119.5 MB. Free memory was 85.1 MB in the beginning and 95.9 MB in the end (delta: -10.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 28.40 ms. Allocated memory is still 119.5 MB. Free memory was 95.9 MB in the beginning and 94.5 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 17.07 ms. Allocated memory is still 119.5 MB. Free memory was 94.5 MB in the beginning and 93.9 MB in the end (delta: 636.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 202.25 ms. Allocated memory is still 119.5 MB. Free memory was 93.6 MB in the beginning and 85.3 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 1293.46 ms. Allocated memory was 119.5 MB in the beginning and 169.9 MB in the end (delta: 50.3 MB). Free memory was 85.3 MB in the beginning and 138.3 MB in the end (delta: -53.0 MB). Peak memory consumption was 434.0 kB. Max. memory is 16.1 GB. * Witness Printer took 4.65 ms. Allocated memory is still 169.9 MB. Free memory is still 138.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function x and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.2s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. 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: 5 SDtfs, 5 SDslu, 4 SDs, 0 SdLazy, 3 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax100 hnf100 lsp66 ukn100 mio100 lsp100 div450 bol100 ite100 ukn100 eq108 hnf46 smp100 dnf100 smp100 tf108 neg100 sie108 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 20ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...