./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 26d01a9c 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-?-26d01a9 [2023-02-17 04:15:22,076 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-17 04:15:22,077 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-17 04:15:22,101 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-17 04:15:22,102 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-17 04:15:22,104 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-17 04:15:22,106 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-17 04:15:22,108 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-17 04:15:22,110 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-17 04:15:22,114 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-17 04:15:22,115 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-17 04:15:22,115 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-17 04:15:22,116 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-17 04:15:22,117 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-17 04:15:22,118 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-17 04:15:22,118 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-17 04:15:22,119 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-17 04:15:22,119 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-17 04:15:22,120 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-17 04:15:22,122 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-17 04:15:22,122 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-17 04:15:22,125 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-17 04:15:22,126 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-17 04:15:22,127 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-17 04:15:22,134 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-17 04:15:22,134 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-17 04:15:22,134 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-17 04:15:22,135 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-17 04:15:22,136 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-17 04:15:22,136 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-17 04:15:22,137 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-17 04:15:22,137 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-17 04:15:22,138 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-17 04:15:22,140 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-17 04:15:22,140 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-17 04:15:22,140 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-17 04:15:22,141 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-17 04:15:22,141 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-17 04:15:22,141 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-17 04:15:22,142 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-17 04:15:22,143 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-17 04:15:22,143 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-02-17 04:15:22,168 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-17 04:15:22,168 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-17 04:15:22,169 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-17 04:15:22,169 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-17 04:15:22,170 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-17 04:15:22,170 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-17 04:15:22,170 INFO L138 SettingsManager]: * Use SBE=true [2023-02-17 04:15:22,170 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-02-17 04:15:22,170 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-02-17 04:15:22,170 INFO L138 SettingsManager]: * Use old map elimination=false [2023-02-17 04:15:22,170 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2023-02-17 04:15:22,170 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2023-02-17 04:15:22,170 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-02-17 04:15:22,170 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-17 04:15:22,171 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-17 04:15:22,171 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-17 04:15:22,171 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-17 04:15:22,171 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-02-17 04:15:22,171 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-02-17 04:15:22,171 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-02-17 04:15:22,171 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-17 04:15:22,171 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-02-17 04:15:22,171 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-17 04:15:22,172 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-02-17 04:15:22,172 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-17 04:15:22,172 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-17 04:15:22,172 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-17 04:15:22,173 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-17 04:15:22,174 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-02-17 04:15:22,174 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6d6de59cf2b416f7340c8c861064933450d6034e9a050a1b7fe5107e8fa4152f [2023-02-17 04:15:22,365 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-17 04:15:22,381 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-17 04:15:22,383 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-17 04:15:22,384 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-17 04:15:22,385 INFO L275 PluginConnector]: CDTParser initialized [2023-02-17 04:15:22,385 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-numeric/java_LogBuiltIn.c [2023-02-17 04:15:23,263 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-17 04:15:23,437 INFO L351 CDTParser]: Found 1 translation units. [2023-02-17 04:15:23,438 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-numeric/java_LogBuiltIn.c [2023-02-17 04:15:23,442 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a560d4af/f0cb3ee4e78d45378b74bf46c46c3378/FLAG533e0692d [2023-02-17 04:15:23,457 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a560d4af/f0cb3ee4e78d45378b74bf46c46c3378 [2023-02-17 04:15:23,459 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-17 04:15:23,460 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-17 04:15:23,463 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-17 04:15:23,463 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-17 04:15:23,465 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-17 04:15:23,466 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.02 04:15:23" (1/1) ... [2023-02-17 04:15:23,468 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@798aaafa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 04:15:23, skipping insertion in model container [2023-02-17 04:15:23,468 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.02 04:15:23" (1/1) ... [2023-02-17 04:15:23,473 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-17 04:15:23,483 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-17 04:15:23,589 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-17 04:15:23,595 INFO L203 MainTranslator]: Completed pre-run [2023-02-17 04:15:23,604 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-17 04:15:23,613 INFO L208 MainTranslator]: Completed translation [2023-02-17 04:15:23,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 04:15:23 WrapperNode [2023-02-17 04:15:23,613 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-17 04:15:23,614 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-17 04:15:23,614 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-17 04:15:23,614 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-17 04:15:23,619 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 04:15:23" (1/1) ... [2023-02-17 04:15:23,623 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 04:15:23" (1/1) ... [2023-02-17 04:15:23,632 INFO L138 Inliner]: procedures = 5, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 19 [2023-02-17 04:15:23,632 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-17 04:15:23,633 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-17 04:15:23,633 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-17 04:15:23,633 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-17 04:15:23,637 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 04:15:23" (1/1) ... [2023-02-17 04:15:23,638 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 04:15:23" (1/1) ... [2023-02-17 04:15:23,638 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 04:15:23" (1/1) ... [2023-02-17 04:15:23,638 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 04:15:23" (1/1) ... [2023-02-17 04:15:23,639 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 04:15:23" (1/1) ... [2023-02-17 04:15:23,641 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 04:15:23" (1/1) ... [2023-02-17 04:15:23,641 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 04:15:23" (1/1) ... [2023-02-17 04:15:23,642 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 04:15:23" (1/1) ... [2023-02-17 04:15:23,642 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-17 04:15:23,643 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-17 04:15:23,643 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-17 04:15:23,643 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-17 04:15:23,644 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 04:15:23" (1/1) ... [2023-02-17 04:15:23,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 04:15:23,653 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 04:15:23,663 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) [2023-02-17 04:15:23,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-17 04:15:23,678 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 [2023-02-17 04:15:23,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-17 04:15:23,735 INFO L235 CfgBuilder]: Building ICFG [2023-02-17 04:15:23,737 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-17 04:15:23,789 INFO L276 CfgBuilder]: Performing block encoding [2023-02-17 04:15:23,794 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-17 04:15:23,794 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-17 04:15:23,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 04:15:23 BoogieIcfgContainer [2023-02-17 04:15:23,795 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-17 04:15:23,796 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-02-17 04:15:23,796 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2023-02-17 04:15:23,799 INFO L275 PluginConnector]: BuchiAutomizer initialized [2023-02-17 04:15:23,799 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-17 04:15:23,800 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 17.02 04:15:23" (1/3) ... [2023-02-17 04:15:23,800 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7c59a17b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.02 04:15:23, skipping insertion in model container [2023-02-17 04:15:23,800 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-17 04:15:23,801 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 04:15:23" (2/3) ... [2023-02-17 04:15:23,801 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7c59a17b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.02 04:15:23, skipping insertion in model container [2023-02-17 04:15:23,801 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-17 04:15:23,801 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 04:15:23" (3/3) ... [2023-02-17 04:15:23,802 INFO L332 chiAutomizerObserver]: Analyzing ICFG java_LogBuiltIn.c [2023-02-17 04:15:23,836 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-02-17 04:15:23,836 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-02-17 04:15:23,837 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-02-17 04:15:23,837 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-02-17 04:15:23,837 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-02-17 04:15:23,837 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-02-17 04:15:23,837 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-02-17 04:15:23,837 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-02-17 04:15:23,840 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) [2023-02-17 04:15:23,850 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-17 04:15:23,851 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-17 04:15:23,851 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-17 04:15:23,854 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-17 04:15:23,854 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-02-17 04:15:23,854 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-02-17 04:15:23,854 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) [2023-02-17 04:15:23,855 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-17 04:15:23,855 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-17 04:15:23,856 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-17 04:15:23,856 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-17 04:15:23,856 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-02-17 04:15:23,862 INFO L748 eck$LassoCheckResult]: Stem: 6#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~ret2#1;assume { :begin_inline_mlog } true;mlog_#in~x#1 := main_#t~nondet1#1;havoc mlog_#res#1;havoc mlog_#t~post0#1, mlog_~x#1, mlog_~res~0#1;mlog_~x#1 := mlog_#in~x#1;mlog_~res~0#1 := 0; 5#L7-2true [2023-02-17 04:15:23,862 INFO L750 eck$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 [2023-02-17 04:15:23,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 04:15:23,870 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-02-17 04:15:23,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 04:15:23,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920222262] [2023-02-17 04:15:23,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 04:15:23,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 04:15:23,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 04:15:23,937 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-17 04:15:23,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 04:15:23,965 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-17 04:15:23,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 04:15:23,968 INFO L85 PathProgramCache]: Analyzing trace with hash 42, now seen corresponding path program 1 times [2023-02-17 04:15:23,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 04:15:23,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521826891] [2023-02-17 04:15:23,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 04:15:23,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 04:15:23,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 04:15:23,996 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-17 04:15:24,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 04:15:24,016 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-17 04:15:24,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 04:15:24,017 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2023-02-17 04:15:24,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 04:15:24,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82128998] [2023-02-17 04:15:24,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 04:15:24,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 04:15:24,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 04:15:24,034 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-17 04:15:24,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 04:15:24,052 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-17 04:15:24,081 INFO L210 LassoAnalysis]: Preferences: [2023-02-17 04:15:24,082 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-17 04:15:24,082 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-17 04:15:24,082 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-17 04:15:24,082 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-17 04:15:24,082 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 04:15:24,083 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-17 04:15:24,083 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-17 04:15:24,083 INFO L133 ssoRankerPreferences]: Filename of dumped script: java_LogBuiltIn.c_Iteration1_Loop [2023-02-17 04:15:24,083 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-17 04:15:24,083 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-17 04:15:24,102 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 04:15:24,109 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 04:15:24,113 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 04:15:24,131 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2023-02-17 04:15:24,143 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-17 04:15:24,148 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-17 04:15:24,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 04:15:24,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 04:15:24,153 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) [2023-02-17 04:15:24,164 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-17 04:15:24,164 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-17 04:15:24,175 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 [2023-02-17 04:15:24,194 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-02-17 04:15:24,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 04:15:24,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 04:15:24,195 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) [2023-02-17 04:15:24,197 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 [2023-02-17 04:15:24,199 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-17 04:15:24,199 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-17 04:15:24,249 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-17 04:15:24,250 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=2}, {ULTIMATE.start_mlog_~res~0#1=-8}, {ULTIMATE.start_mlog_~res~0#1=7}] Lambdas: [5, 1, 1] Nus: [1, 0] [2023-02-17 04:15:24,255 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 [2023-02-17 04:15:24,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 04:15:24,256 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 04:15:24,265 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) [2023-02-17 04:15:24,308 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-17 04:15:24,308 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-17 04:15:24,316 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 [2023-02-17 04:15:24,337 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-17 04:15:24,337 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: [] [2023-02-17 04:15:24,343 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 [2023-02-17 04:15:24,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 04:15:24,343 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 04:15:24,345 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) [2023-02-17 04:15:24,347 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 [2023-02-17 04:15:24,349 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-17 04:15:24,350 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-17 04:15:24,414 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 [2023-02-17 04:15:24,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 04:15:24,414 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 04:15:24,416 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) [2023-02-17 04:15:24,418 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 [2023-02-17 04:15:24,421 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-17 04:15:24,421 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-17 04:15:24,547 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-17 04:15:24,550 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-02-17 04:15:24,550 INFO L210 LassoAnalysis]: Preferences: [2023-02-17 04:15:24,550 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-17 04:15:24,551 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-17 04:15:24,551 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-17 04:15:24,551 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-17 04:15:24,551 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 04:15:24,551 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-17 04:15:24,551 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-17 04:15:24,551 INFO L133 ssoRankerPreferences]: Filename of dumped script: java_LogBuiltIn.c_Iteration1_Loop [2023-02-17 04:15:24,552 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-17 04:15:24,552 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-17 04:15:24,553 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 04:15:24,555 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 04:15:24,556 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 04:15:24,560 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2023-02-17 04:15:24,567 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-17 04:15:24,571 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-17 04:15:24,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 04:15:24,573 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 04:15:24,574 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) [2023-02-17 04:15:24,576 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 [2023-02-17 04:15:24,578 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 [2023-02-17 04:15:24,584 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-17 04:15:24,584 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-17 04:15:24,585 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-17 04:15:24,585 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-17 04:15:24,585 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-17 04:15:24,587 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-17 04:15:24,587 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-17 04:15:24,603 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-17 04:15:24,606 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 [2023-02-17 04:15:24,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 04:15:24,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 04:15:24,609 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) [2023-02-17 04:15:24,620 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 [2023-02-17 04:15:24,626 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-17 04:15:24,626 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-17 04:15:24,626 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-17 04:15:24,626 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-17 04:15:24,626 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-17 04:15:24,628 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-17 04:15:24,628 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-17 04:15:24,631 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 [2023-02-17 04:15:24,640 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-17 04:15:24,642 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 [2023-02-17 04:15:24,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 04:15:24,643 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 04:15:24,644 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) [2023-02-17 04:15:24,646 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 [2023-02-17 04:15:24,647 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 [2023-02-17 04:15:24,653 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-17 04:15:24,654 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-17 04:15:24,654 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-17 04:15:24,654 INFO L204 nArgumentSynthesizer]: 20 loop disjuncts [2023-02-17 04:15:24,654 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-17 04:15:24,691 INFO L401 nArgumentSynthesizer]: We have 40 Motzkin's Theorem applications. [2023-02-17 04:15:24,692 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-17 04:15:24,745 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-17 04:15:24,759 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-02-17 04:15:24,759 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-17 04:15:24,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 04:15:24,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 04:15:24,805 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) [2023-02-17 04:15:24,808 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 [2023-02-17 04:15:24,812 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-17 04:15:24,812 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-17 04:15:24,813 INFO L513 LassoAnalysis]: Proved termination. [2023-02-17 04:15:24,813 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_mlog_~x#1) = 1*ULTIMATE.start_mlog_~x#1 Supporting invariants [] [2023-02-17 04:15:24,823 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-02-17 04:15:24,825 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-17 04:15:24,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 04:15:24,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 04:15:24,847 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-17 04:15:24,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 04:15:24,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 04:15:24,856 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-17 04:15:24,857 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 04:15:24,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 04:15:24,890 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-02-17 04:15:24,891 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) [2023-02-17 04:15:24,911 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. [2023-02-17 04:15:24,913 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 [2023-02-17 04:15:24,916 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) [2023-02-17 04:15:24,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. [2023-02-17 04:15:24,917 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 2 letters. Loop has 1 letters. [2023-02-17 04:15:24,917 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-17 04:15:24,918 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 3 letters. Loop has 1 letters. [2023-02-17 04:15:24,918 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-17 04:15:24,918 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 2 letters. Loop has 2 letters. [2023-02-17 04:15:24,918 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-17 04:15:24,919 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 22 transitions. [2023-02-17 04:15:24,920 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-17 04:15:24,921 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 0 states and 0 transitions. [2023-02-17 04:15:24,922 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-02-17 04:15:24,922 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-02-17 04:15:24,922 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-02-17 04:15:24,923 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-17 04:15:24,923 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-17 04:15:24,923 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-17 04:15:24,923 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-17 04:15:24,923 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-02-17 04:15:24,923 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-02-17 04:15:24,923 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-17 04:15:24,923 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-02-17 04:15:24,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 17.02 04:15:24 BoogieIcfgContainer [2023-02-17 04:15:24,928 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-02-17 04:15:24,929 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-17 04:15:24,944 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-17 04:15:24,945 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-17 04:15:24,945 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 04:15:23" (3/4) ... [2023-02-17 04:15:24,947 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-02-17 04:15:24,947 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-17 04:15:24,948 INFO L158 Benchmark]: Toolchain (without parser) took 1487.40ms. Allocated memory was 132.1MB in the beginning and 176.2MB in the end (delta: 44.0MB). Free memory was 97.8MB in the beginning and 110.6MB in the end (delta: -12.8MB). Peak memory consumption was 32.8MB. Max. memory is 16.1GB. [2023-02-17 04:15:24,948 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 132.1MB. Free memory was 79.9MB in the beginning and 79.8MB in the end (delta: 159.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-17 04:15:24,949 INFO L158 Benchmark]: CACSL2BoogieTranslator took 150.98ms. Allocated memory is still 132.1MB. Free memory was 97.3MB in the beginning and 88.3MB in the end (delta: 9.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-17 04:15:24,949 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.05ms. Allocated memory is still 132.1MB. Free memory was 88.3MB in the beginning and 87.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-17 04:15:24,949 INFO L158 Benchmark]: Boogie Preprocessor took 9.70ms. Allocated memory is still 132.1MB. Free memory was 87.3MB in the beginning and 86.3MB in the end (delta: 986.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-17 04:15:24,950 INFO L158 Benchmark]: RCFGBuilder took 152.66ms. Allocated memory is still 132.1MB. Free memory was 86.3MB in the beginning and 77.9MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-17 04:15:24,950 INFO L158 Benchmark]: BuchiAutomizer took 1132.17ms. Allocated memory was 132.1MB in the beginning and 176.2MB in the end (delta: 44.0MB). Free memory was 77.4MB in the beginning and 111.1MB in the end (delta: -33.7MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. [2023-02-17 04:15:24,950 INFO L158 Benchmark]: Witness Printer took 18.50ms. Allocated memory is still 176.2MB. Free memory was 111.1MB in the beginning and 110.6MB in the end (delta: 433.3kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-17 04:15:24,963 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 132.1MB. Free memory was 79.9MB in the beginning and 79.8MB in the end (delta: 159.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 150.98ms. Allocated memory is still 132.1MB. Free memory was 97.3MB in the beginning and 88.3MB in the end (delta: 9.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 18.05ms. Allocated memory is still 132.1MB. Free memory was 88.3MB in the beginning and 87.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 9.70ms. Allocated memory is still 132.1MB. Free memory was 87.3MB in the beginning and 86.3MB in the end (delta: 986.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 152.66ms. Allocated memory is still 132.1MB. Free memory was 86.3MB in the beginning and 77.9MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1132.17ms. Allocated memory was 132.1MB in the beginning and 176.2MB in the end (delta: 44.0MB). Free memory was 77.4MB in the beginning and 111.1MB in the end (delta: -33.7MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. * Witness Printer took 18.50ms. Allocated memory is still 176.2MB. Free memory was 111.1MB in the beginning and 110.6MB in the end (delta: 433.3kB). 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 -1 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: inital44 mio100 ax100 hnf100 lsp127 ukn100 mio100 lsp100 div210 bol100 ite100 ukn100 eq140 hnf98 smp100 dnf719 smp100 tf100 neg98 sie106 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 170ms VariablesStem: 0 VariablesLoop: 4 DisjunctsStem: 1 DisjunctsLoop: 20 SupportingInvariants: 0 MotzkinApplications: 40 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-02-17 04:15:24,985 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2023-02-17 04:15:25,189 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE