./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 ae007674 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-numeric/java_LogBuiltIn.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 6d6de59cf2b416f7340c8c861064933450d6034e9a050a1b7fe5107e8fa4152f --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 09:03:36,140 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 09:03:36,144 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 09:03:36,169 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 09:03:36,169 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 09:03:36,172 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 09:03:36,174 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 09:03:36,178 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 09:03:36,180 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 09:03:36,184 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 09:03:36,185 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 09:03:36,186 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 09:03:36,186 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 09:03:36,188 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 09:03:36,189 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 09:03:36,192 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 09:03:36,193 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 09:03:36,194 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 09:03:36,195 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 09:03:36,199 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 09:03:36,202 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 09:03:36,203 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 09:03:36,203 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 09:03:36,204 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 09:03:36,206 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 09:03:36,207 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 09:03:36,207 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 09:03:36,208 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 09:03:36,209 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 09:03:36,209 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 09:03:36,210 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 09:03:36,210 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 09:03:36,211 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 09:03:36,212 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 09:03:36,212 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 09:03:36,213 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 09:03:36,213 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 09:03:36,213 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 09:03:36,214 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 09:03:36,215 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 09:03:36,215 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 09:03:36,218 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-12-28 09:03:36,249 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 09:03:36,249 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 09:03:36,250 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 09:03:36,250 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 09:03:36,251 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 09:03:36,252 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 09:03:36,252 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 09:03:36,252 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-28 09:03:36,252 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-28 09:03:36,252 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-28 09:03:36,253 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-28 09:03:36,253 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-28 09:03:36,253 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-28 09:03:36,253 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 09:03:36,253 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-28 09:03:36,254 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 09:03:36,254 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 09:03:36,254 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-28 09:03:36,254 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-28 09:03:36,254 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-28 09:03:36,254 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 09:03:36,254 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-28 09:03:36,255 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 09:03:36,255 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-28 09:03:36,255 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 09:03:36,255 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 09:03:36,255 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 09:03:36,255 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 09:03:36,256 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-28 09:03:36,256 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6d6de59cf2b416f7340c8c861064933450d6034e9a050a1b7fe5107e8fa4152f [2021-12-28 09:03:36,648 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 09:03:36,668 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 09:03:36,670 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 09:03:36,671 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 09:03:36,671 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 09:03:36,672 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-numeric/java_LogBuiltIn.c [2021-12-28 09:03:36,714 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce4f59522/69cfa186e1844ef98a0a87664eecf5d3/FLAG05b8b83c8 [2021-12-28 09:03:37,009 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 09:03:37,009 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-numeric/java_LogBuiltIn.c [2021-12-28 09:03:37,013 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce4f59522/69cfa186e1844ef98a0a87664eecf5d3/FLAG05b8b83c8 [2021-12-28 09:03:37,460 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce4f59522/69cfa186e1844ef98a0a87664eecf5d3 [2021-12-28 09:03:37,462 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 09:03:37,463 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 09:03:37,466 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 09:03:37,466 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 09:03:37,468 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 09:03:37,469 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 09:03:37" (1/1) ... [2021-12-28 09:03:37,471 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c9511e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:03:37, skipping insertion in model container [2021-12-28 09:03:37,471 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 09:03:37" (1/1) ... [2021-12-28 09:03:37,476 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 09:03:37,483 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 09:03:37,579 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 09:03:37,581 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 09:03:37,591 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 09:03:37,621 INFO L208 MainTranslator]: Completed translation [2021-12-28 09:03:37,631 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:03:37 WrapperNode [2021-12-28 09:03:37,631 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 09:03:37,632 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 09:03:37,632 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 09:03:37,632 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 09:03:37,637 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:03:37" (1/1) ... [2021-12-28 09:03:37,640 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:03:37" (1/1) ... [2021-12-28 09:03:37,649 INFO L137 Inliner]: procedures = 5, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 19 [2021-12-28 09:03:37,649 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 09:03:37,649 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 09:03:37,650 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 09:03:37,650 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 09:03:37,654 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:03:37" (1/1) ... [2021-12-28 09:03:37,654 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:03:37" (1/1) ... [2021-12-28 09:03:37,655 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:03:37" (1/1) ... [2021-12-28 09:03:37,655 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:03:37" (1/1) ... [2021-12-28 09:03:37,656 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:03:37" (1/1) ... [2021-12-28 09:03:37,658 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:03:37" (1/1) ... [2021-12-28 09:03:37,658 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:03:37" (1/1) ... [2021-12-28 09:03:37,659 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 09:03:37,659 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 09:03:37,659 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 09:03:37,659 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 09:03:37,660 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:03:37" (1/1) ... [2021-12-28 09:03:37,664 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:03:37,670 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:03:37,677 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:03:37,683 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-28 09:03:37,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 09:03:37,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 09:03:37,736 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 09:03:37,737 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 09:03:37,790 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 09:03:37,794 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 09:03:37,794 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-28 09:03:37,796 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 09:03:37 BoogieIcfgContainer [2021-12-28 09:03:37,796 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 09:03:37,796 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-28 09:03:37,797 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-28 09:03:37,798 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-28 09:03:37,799 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-28 09:03:37,799 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.12 09:03:37" (1/3) ... [2021-12-28 09:03:37,800 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7d1b504b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.12 09:03:37, skipping insertion in model container [2021-12-28 09:03:37,800 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-28 09:03:37,800 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:03:37" (2/3) ... [2021-12-28 09:03:37,800 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7d1b504b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.12 09:03:37, skipping insertion in model container [2021-12-28 09:03:37,800 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-28 09:03:37,800 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 09:03:37" (3/3) ... [2021-12-28 09:03:37,801 INFO L388 chiAutomizerObserver]: Analyzing ICFG java_LogBuiltIn.c [2021-12-28 09:03:37,826 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-28 09:03:37,827 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-28 09:03:37,827 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-28 09:03:37,827 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-28 09:03:37,827 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-28 09:03:37,827 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-28 09:03:37,827 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-28 09:03:37,827 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-28 09:03:37,835 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 09:03:37,844 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-12-28 09:03:37,844 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:03:37,844 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:03:37,847 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-28 09:03:37,847 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-12-28 09:03:37,847 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-28 09:03:37,848 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 09:03:37,848 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-12-28 09:03:37,848 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:03:37,848 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:03:37,849 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-28 09:03:37,849 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-12-28 09:03:37,852 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~ret2#1;assume { :begin_inline_mlog } true;mlog_#in~x#1 := main_#t~nondet1#1;havoc mlog_#res#1;havoc mlog_#t~post0#1, mlog_~x#1, mlog_~res~0#1;mlog_~x#1 := mlog_#in~x#1;mlog_~res~0#1 := 0; 5#L7-2true [2021-12-28 09:03:37,853 INFO L793 eck$LassoCheckResult]: Loop: 5#L7-2true assume !!(mlog_~x#1 > 1);mlog_~x#1 := (if mlog_~x#1 < 0 && 0 != mlog_~x#1 % 2 then 1 + mlog_~x#1 / 2 else mlog_~x#1 / 2);mlog_#t~post0#1 := mlog_~res~0#1;mlog_~res~0#1 := 1 + mlog_#t~post0#1;havoc mlog_#t~post0#1; 5#L7-2true [2021-12-28 09:03:37,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:03:37,856 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-12-28 09:03:37,864 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:03:37,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994293526] [2021-12-28 09:03:37,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:03:37,865 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:03:37,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:03:37,906 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:03:37,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:03:37,919 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:03:37,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:03:37,925 INFO L85 PathProgramCache]: Analyzing trace with hash 42, now seen corresponding path program 1 times [2021-12-28 09:03:37,925 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:03:37,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103523514] [2021-12-28 09:03:37,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:03:37,927 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:03:37,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:03:37,952 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:03:37,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:03:37,967 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:03:37,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:03:37,968 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2021-12-28 09:03:37,968 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:03:37,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448067331] [2021-12-28 09:03:37,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:03:37,969 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:03:37,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:03:37,984 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:03:37,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:03:37,999 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:03:38,076 INFO L210 LassoAnalysis]: Preferences: [2021-12-28 09:03:38,076 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-28 09:03:38,076 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-28 09:03:38,077 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-28 09:03:38,077 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-28 09:03:38,077 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:03:38,077 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-28 09:03:38,077 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-28 09:03:38,077 INFO L133 ssoRankerPreferences]: Filename of dumped script: java_LogBuiltIn.c_Iteration1_Loop [2021-12-28 09:03:38,077 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-28 09:03:38,077 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-28 09:03:38,086 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:03:38,102 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:03:38,105 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:03:38,196 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-28 09:03:38,196 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-28 09:03:38,197 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:03:38,198 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:03:38,211 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:03:38,212 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-12-28 09:03:38,213 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-28 09:03:38,213 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-28 09:03:38,243 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2021-12-28 09:03:38,243 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:03:38,244 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:03:38,245 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:03:38,246 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-12-28 09:03:38,247 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-28 09:03:38,247 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-28 09:03:38,280 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-28 09:03:38,281 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_mlog_~res~0#1=0} Honda state: {ULTIMATE.start_mlog_~res~0#1=0} Generalized eigenvectors: [{ULTIMATE.start_mlog_~res~0#1=-4}, {ULTIMATE.start_mlog_~res~0#1=1}, {ULTIMATE.start_mlog_~res~0#1=4}] Lambdas: [1, 1, 1] Nus: [0, 0] [2021-12-28 09:03:38,298 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-12-28 09:03:38,299 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:03:38,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:03:38,301 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:03:38,317 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-12-28 09:03:38,317 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-28 09:03:38,318 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-28 09:03:38,331 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-28 09:03:38,331 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_mlog_#t~post0#1=0} Honda state: {ULTIMATE.start_mlog_#t~post0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-28 09:03:38,348 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-12-28 09:03:38,349 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:03:38,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:03:38,350 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:03:38,360 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-12-28 09:03:38,361 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-28 09:03:38,361 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-28 09:03:38,417 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-12-28 09:03:38,417 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:03:38,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:03:38,419 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:03:38,427 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-12-28 09:03:38,428 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-28 09:03:38,428 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-28 09:03:38,460 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-28 09:03:38,466 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2021-12-28 09:03:38,466 INFO L210 LassoAnalysis]: Preferences: [2021-12-28 09:03:38,466 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-28 09:03:38,466 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-28 09:03:38,466 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-28 09:03:38,466 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-28 09:03:38,466 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:03:38,466 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-28 09:03:38,466 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-28 09:03:38,466 INFO L133 ssoRankerPreferences]: Filename of dumped script: java_LogBuiltIn.c_Iteration1_Loop [2021-12-28 09:03:38,466 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-28 09:03:38,467 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-28 09:03:38,467 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:03:38,471 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:03:38,473 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:03:38,539 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-28 09:03:38,542 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-28 09:03:38,552 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:03:38,552 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:03:38,591 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:03:38,624 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-12-28 09:03:38,625 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-28 09:03:38,631 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:03:38,631 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-28 09:03:38,631 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:03:38,631 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:03:38,631 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:03:38,633 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-28 09:03:38,633 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-28 09:03:38,648 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:03:38,665 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-12-28 09:03:38,665 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:03:38,665 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:03:38,666 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:03:38,667 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-12-28 09:03:38,668 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-28 09:03:38,674 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:03:38,674 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-28 09:03:38,674 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:03:38,674 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:03:38,674 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:03:38,675 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-28 09:03:38,675 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-28 09:03:38,687 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:03:38,703 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-12-28 09:03:38,703 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:03:38,703 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:03:38,705 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:03:38,706 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-12-28 09:03:38,706 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-28 09:03:38,712 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:03:38,712 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-28 09:03:38,713 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:03:38,713 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:03:38,713 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:03:38,714 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-28 09:03:38,714 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-28 09:03:38,719 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-28 09:03:38,748 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-12-28 09:03:38,748 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-12-28 09:03:38,749 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:03:38,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:03:38,768 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:03:38,784 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-12-28 09:03:38,784 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-28 09:03:38,784 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-28 09:03:38,784 INFO L513 LassoAnalysis]: Proved termination. [2021-12-28 09:03:38,785 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_mlog_~x#1) = 1*ULTIMATE.start_mlog_~x#1 Supporting invariants [] [2021-12-28 09:03:38,800 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2021-12-28 09:03:38,804 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-28 09:03:38,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:03:38,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 09:03:38,833 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-28 09:03:38,833 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 09:03:38,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 09:03:38,846 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-28 09:03:38,847 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 09:03:38,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 09:03:38,866 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 [2021-12-28 09:03:38,867 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 09:03:38,886 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 19 states and 22 transitions. Complement of second has 5 states. [2021-12-28 09:03:38,887 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 [2021-12-28 09:03:38,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 09:03:38,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. [2021-12-28 09:03:38,892 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 2 letters. Loop has 1 letters. [2021-12-28 09:03:38,892 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-28 09:03:38,893 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 3 letters. Loop has 1 letters. [2021-12-28 09:03:38,893 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-28 09:03:38,893 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 2 letters. Loop has 2 letters. [2021-12-28 09:03:38,893 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-28 09:03:38,894 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 22 transitions. [2021-12-28 09:03:38,897 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-28 09:03:38,899 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 0 states and 0 transitions. [2021-12-28 09:03:38,899 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-28 09:03:38,899 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-28 09:03:38,900 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-28 09:03:38,900 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 09:03:38,900 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-28 09:03:38,900 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-28 09:03:38,900 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-28 09:03:38,900 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-28 09:03:38,900 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-12-28 09:03:38,900 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-28 09:03:38,900 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-12-28 09:03:38,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.12 09:03:38 BoogieIcfgContainer [2021-12-28 09:03:38,906 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-28 09:03:38,907 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-28 09:03:38,907 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-28 09:03:38,907 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-28 09:03:38,907 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 09:03:37" (3/4) ... [2021-12-28 09:03:38,911 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-28 09:03:38,911 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-28 09:03:38,913 INFO L158 Benchmark]: Toolchain (without parser) took 1447.96ms. Allocated memory was 52.4MB in the beginning and 62.9MB in the end (delta: 10.5MB). Free memory was 30.1MB in the beginning and 28.3MB in the end (delta: 1.8MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB. [2021-12-28 09:03:38,914 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 52.4MB. Free memory was 34.6MB in the beginning and 34.6MB in the end (delta: 46.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-28 09:03:38,918 INFO L158 Benchmark]: CACSL2BoogieTranslator took 165.57ms. Allocated memory was 52.4MB in the beginning and 62.9MB in the end (delta: 10.5MB). Free memory was 29.9MB in the beginning and 47.7MB in the end (delta: -17.8MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. [2021-12-28 09:03:38,919 INFO L158 Benchmark]: Boogie Procedure Inliner took 17.08ms. Allocated memory is still 62.9MB. Free memory was 47.7MB in the beginning and 46.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-28 09:03:38,919 INFO L158 Benchmark]: Boogie Preprocessor took 9.16ms. Allocated memory is still 62.9MB. Free memory was 46.5MB in the beginning and 45.5MB in the end (delta: 979.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-28 09:03:38,920 INFO L158 Benchmark]: RCFGBuilder took 136.88ms. Allocated memory is still 62.9MB. Free memory was 45.5MB in the beginning and 37.6MB in the end (delta: 7.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-28 09:03:38,920 INFO L158 Benchmark]: BuchiAutomizer took 1109.52ms. Allocated memory is still 62.9MB. Free memory was 37.4MB in the beginning and 28.6MB in the end (delta: 8.9MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. [2021-12-28 09:03:38,920 INFO L158 Benchmark]: Witness Printer took 4.46ms. Allocated memory is still 62.9MB. Free memory was 28.6MB in the beginning and 28.3MB in the end (delta: 291.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-28 09:03:38,927 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 52.4MB. Free memory was 34.6MB in the beginning and 34.6MB in the end (delta: 46.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 165.57ms. Allocated memory was 52.4MB in the beginning and 62.9MB in the end (delta: 10.5MB). Free memory was 29.9MB in the beginning and 47.7MB in the end (delta: -17.8MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 17.08ms. Allocated memory is still 62.9MB. Free memory was 47.7MB in the beginning and 46.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 9.16ms. Allocated memory is still 62.9MB. Free memory was 46.5MB in the beginning and 45.5MB in the end (delta: 979.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 136.88ms. Allocated memory is still 62.9MB. Free memory was 45.5MB in the beginning and 37.6MB in the end (delta: 7.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 1109.52ms. Allocated memory is still 62.9MB. Free memory was 37.4MB in the beginning and 28.6MB in the end (delta: 8.9MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. * Witness Printer took 4.46ms. Allocated memory is still 62.9MB. Free memory was 28.6MB in the beginning and 28.3MB in the end (delta: 291.8kB). There was no memory consumed. Max. memory is 16.1GB. * 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 1.0s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. 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: 0 mSolverCounterUnknown, 7 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 6 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown 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 hnf97 smp47 dnf100 smp100 tf108 neg100 sie108 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 96ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-12-28 09:03:38,951 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-12-28 09:03:39,168 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE