./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 20ed64ec 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 d28857c86a3c83fc75b1b8cf8125f1c52a370911 ...................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 14:09:29,324 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 14:09:29,326 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 14:09:29,374 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 14:09:29,374 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 14:09:29,377 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 14:09:29,378 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 14:09:29,383 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 14:09:29,385 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 14:09:29,389 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 14:09:29,390 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 14:09:29,393 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 14:09:29,394 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 14:09:29,396 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 14:09:29,397 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 14:09:29,400 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 14:09:29,401 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 14:09:29,401 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 14:09:29,403 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 14:09:29,408 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 14:09:29,409 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 14:09:29,410 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 14:09:29,411 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 14:09:29,413 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 14:09:29,419 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 14:09:29,419 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 14:09:29,419 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 14:09:29,421 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 14:09:29,421 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 14:09:29,422 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 14:09:29,422 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 14:09:29,423 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 14:09:29,424 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 14:09:29,425 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 14:09:29,426 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 14:09:29,426 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 14:09:29,427 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 14:09:29,427 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 14:09:29,427 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 14:09:29,428 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 14:09:29,429 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 14:09:29,433 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-08-27 14:09:29,468 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 14:09:29,469 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 14:09:29,470 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 14:09:29,470 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 14:09:29,471 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 14:09:29,472 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 14:09:29,472 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 14:09:29,472 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-27 14:09:29,472 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-27 14:09:29,473 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-27 14:09:29,473 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-27 14:09:29,474 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-27 14:09:29,474 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-27 14:09:29,474 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 14:09:29,474 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 14:09:29,475 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 14:09:29,475 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 14:09:29,475 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-27 14:09:29,475 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-27 14:09:29,475 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-27 14:09:29,476 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-27 14:09:29,476 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-27 14:09:29,476 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 14:09:29,476 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-27 14:09:29,477 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 14:09:29,477 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 14:09:29,477 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 14:09:29,477 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 14:09:29,477 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 14:09:29,479 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-27 14:09:29,479 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d28857c86a3c83fc75b1b8cf8125f1c52a370911 [2021-08-27 14:09:29,766 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 14:09:29,782 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 14:09:29,785 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 14:09:29,786 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 14:09:29,787 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 14:09:29,788 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-numeric/java_LogBuiltIn.c [2021-08-27 14:09:29,844 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/451b0c747/fa50a5301da54259b22b9ef965dee80c/FLAG656b95328 [2021-08-27 14:09:30,218 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 14:09:30,218 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-numeric/java_LogBuiltIn.c [2021-08-27 14:09:30,225 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/451b0c747/fa50a5301da54259b22b9ef965dee80c/FLAG656b95328 [2021-08-27 14:09:30,646 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/451b0c747/fa50a5301da54259b22b9ef965dee80c [2021-08-27 14:09:30,649 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 14:09:30,651 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-27 14:09:30,654 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 14:09:30,655 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 14:09:30,658 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 14:09:30,658 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 02:09:30" (1/1) ... [2021-08-27 14:09:30,659 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fbf551 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:09:30, skipping insertion in model container [2021-08-27 14:09:30,659 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 02:09:30" (1/1) ... [2021-08-27 14:09:30,665 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 14:09:30,676 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 14:09:30,782 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 14:09:30,784 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 14:09:30,793 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 14:09:30,803 INFO L208 MainTranslator]: Completed translation [2021-08-27 14:09:30,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:09:30 WrapperNode [2021-08-27 14:09:30,804 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 14:09:30,805 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-27 14:09:30,805 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-27 14:09:30,805 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-27 14:09:30,810 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:09:30" (1/1) ... [2021-08-27 14:09:30,813 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:09:30" (1/1) ... [2021-08-27 14:09:30,861 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-27 14:09:30,862 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 14:09:30,862 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 14:09:30,862 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 14:09:30,867 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:09:30" (1/1) ... [2021-08-27 14:09:30,867 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:09:30" (1/1) ... [2021-08-27 14:09:30,868 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:09:30" (1/1) ... [2021-08-27 14:09:30,868 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:09:30" (1/1) ... [2021-08-27 14:09:30,870 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:09:30" (1/1) ... [2021-08-27 14:09:30,873 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:09:30" (1/1) ... [2021-08-27 14:09:30,873 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:09:30" (1/1) ... [2021-08-27 14:09:30,874 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 14:09:30,876 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 14:09:30,876 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 14:09:30,877 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 14:09:30,877 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:09:30" (1/1) ... [2021-08-27 14:09:30,883 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:09:30,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:09:30,902 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) [2021-08-27 14:09:30,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 14:09:30,932 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 [2021-08-27 14:09:30,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 14:09:31,075 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 14:09:31,075 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-08-27 14:09:31,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 02:09:31 BoogieIcfgContainer [2021-08-27 14:09:31,079 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 14:09:31,080 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-27 14:09:31,080 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-27 14:09:31,083 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-27 14:09:31,084 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 14:09:31,084 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.08 02:09:30" (1/3) ... [2021-08-27 14:09:31,085 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@f8d15da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 02:09:31, skipping insertion in model container [2021-08-27 14:09:31,085 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 14:09:31,086 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:09:30" (2/3) ... [2021-08-27 14:09:31,086 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@f8d15da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 02:09:31, skipping insertion in model container [2021-08-27 14:09:31,086 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 14:09:31,086 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 02:09:31" (3/3) ... [2021-08-27 14:09:31,088 INFO L389 chiAutomizerObserver]: Analyzing ICFG java_LogBuiltIn.c [2021-08-27 14:09:31,134 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-27 14:09:31,134 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-27 14:09:31,134 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-27 14:09:31,134 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-27 14:09:31,134 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-27 14:09:31,135 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-27 14:09:31,135 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-27 14:09:31,135 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-27 14:09:31,145 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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) [2021-08-27 14:09:31,158 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-08-27 14:09:31,158 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 14:09:31,158 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 14:09:31,162 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-08-27 14:09:31,162 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-08-27 14:09:31,162 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-27 14:09:31,163 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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) [2021-08-27 14:09:31,164 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-08-27 14:09:31,164 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 14:09:31,164 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 14:09:31,165 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-08-27 14:09:31,165 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-08-27 14:09:31,170 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet1, main_#t~ret2;mlog_#in~x := main_#t~nondet1;havoc mlog_#res;havoc mlog_#t~post0, mlog_~x, mlog_~res~0;mlog_~x := mlog_#in~x;mlog_~res~0 := 0; 5#L7-2true [2021-08-27 14:09:31,170 INFO L793 eck$LassoCheckResult]: Loop: 5#L7-2true assume !!(mlog_~x > 1);mlog_~x := (if mlog_~x < 0 && 0 != mlog_~x % 2 then 1 + mlog_~x / 2 else mlog_~x / 2);mlog_#t~post0 := mlog_~res~0;mlog_~res~0 := 1 + mlog_#t~post0;havoc mlog_#t~post0; 5#L7-2true [2021-08-27 14:09:31,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:09:31,174 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2021-08-27 14:09:31,181 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:09:31,182 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838989448] [2021-08-27 14:09:31,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:09:31,183 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:09:31,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:09:31,261 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:09:31,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:09:31,279 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:09:31,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:09:31,282 INFO L82 PathProgramCache]: Analyzing trace with hash 41, now seen corresponding path program 1 times [2021-08-27 14:09:31,283 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:09:31,283 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668283018] [2021-08-27 14:09:31,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:09:31,284 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:09:31,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:09:31,309 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:09:31,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:09:31,333 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:09:31,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:09:31,337 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2021-08-27 14:09:31,338 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:09:31,338 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71206071] [2021-08-27 14:09:31,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:09:31,338 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:09:31,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:09:31,353 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:09:31,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:09:31,366 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:09:31,513 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 14:09:31,513 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 14:09:31,513 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 14:09:31,514 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 14:09:31,514 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-08-27 14:09:31,514 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:09:31,514 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 14:09:31,514 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 14:09:31,514 INFO L133 ssoRankerPreferences]: Filename of dumped script: java_LogBuiltIn.c_Iteration1_Loop [2021-08-27 14:09:31,515 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 14:09:31,515 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 14:09:31,526 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:09:31,536 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:09:31,548 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:09:31,641 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 14:09:31,641 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-08-27 14:09:31,643 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:09:31,643 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:09:31,646 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) [2021-08-27 14:09:31,651 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 14:09:31,652 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 14:09:31,662 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 [2021-08-27 14:09:31,699 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 [2021-08-27 14:09:31,699 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:09:31,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:09:31,701 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) [2021-08-27 14:09:31,713 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-27 14:09:31,713 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 14:09:31,732 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 [2021-08-27 14:09:31,745 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-27 14:09:31,745 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_mlog_~res~0=0} Honda state: {ULTIMATE.start_mlog_~res~0=0} Generalized eigenvectors: [{ULTIMATE.start_mlog_~res~0=6}, {ULTIMATE.start_mlog_~res~0=0}, {ULTIMATE.start_mlog_~res~0=-5}] Lambdas: [1, 15, 1] Nus: [0, 0] [2021-08-27 14:09:31,770 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 [2021-08-27 14:09:31,770 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:09:31,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:09:31,771 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) [2021-08-27 14:09:31,773 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 [2021-08-27 14:09:31,775 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 14:09:31,775 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 14:09:31,811 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 [2021-08-27 14:09:31,812 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:09:31,812 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:09:31,813 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) [2021-08-27 14:09:31,813 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 [2021-08-27 14:09:31,815 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-27 14:09:31,815 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 14:09:31,857 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-08-27 14:09:31,861 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 [2021-08-27 14:09:31,862 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 14:09:31,862 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 14:09:31,862 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 14:09:31,862 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 14:09:31,862 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 14:09:31,862 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:09:31,862 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 14:09:31,862 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 14:09:31,862 INFO L133 ssoRankerPreferences]: Filename of dumped script: java_LogBuiltIn.c_Iteration1_Loop [2021-08-27 14:09:31,863 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 14:09:31,863 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 14:09:31,882 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:09:31,891 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:09:31,907 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:09:31,987 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 14:09:31,990 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 14:09:31,991 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:09:31,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:09:31,992 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) [2021-08-27 14:09:31,993 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 [2021-08-27 14:09:31,994 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 [2021-08-27 14:09:32,003 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:09:32,003 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:09:32,004 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:09:32,004 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:09:32,004 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:09:32,006 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:09:32,006 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:09:32,016 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:09:32,032 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 [2021-08-27 14:09:32,033 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:09:32,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:09:32,041 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) [2021-08-27 14:09:32,042 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 [2021-08-27 14:09:32,045 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 [2021-08-27 14:09:32,051 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:09:32,051 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:09:32,051 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:09:32,052 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:09:32,052 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:09:32,056 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:09:32,056 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:09:32,058 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 14:09:32,072 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-08-27 14:09:32,072 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-08-27 14:09:32,073 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:09:32,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:09:32,074 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) [2021-08-27 14:09:32,076 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 [2021-08-27 14:09:32,076 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 14:09:32,077 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-08-27 14:09:32,077 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 14:09:32,077 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_mlog_~x) = 1*ULTIMATE.start_mlog_~x Supporting invariants [] [2021-08-27 14:09:32,096 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2021-08-27 14:09:32,099 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-08-27 14:09:32,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:09:32,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:09:32,135 INFO L263 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 14:09:32,135 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 14:09:32,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:09:32,145 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 14:09:32,146 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 14:09:32,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 14:09:32,156 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 [2021-08-27 14:09:32,157 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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 1.0) internal successors, (2), 1 states have internal predecessors, (2), 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) [2021-08-27 14:09:32,203 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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 1.0) internal successors, (2), 1 states have internal predecessors, (2), 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 18 states and 21 transitions. Complement of second has 5 states. [2021-08-27 14:09:32,206 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 [2021-08-27 14:09:32,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 1.0) internal successors, (2), 1 states have internal predecessors, (2), 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) [2021-08-27 14:09:32,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2021-08-27 14:09:32,209 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 1 letters. Loop has 1 letters. [2021-08-27 14:09:32,224 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 14:09:32,225 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 2 letters. Loop has 1 letters. [2021-08-27 14:09:32,225 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 14:09:32,225 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 1 letters. Loop has 2 letters. [2021-08-27 14:09:32,225 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 14:09:32,226 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 21 transitions. [2021-08-27 14:09:32,228 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-27 14:09:32,230 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 0 states and 0 transitions. [2021-08-27 14:09:32,230 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-08-27 14:09:32,231 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-08-27 14:09:32,231 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-08-27 14:09:32,231 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 14:09:32,231 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 14:09:32,231 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 14:09:32,232 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 14:09:32,232 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-27 14:09:32,232 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-08-27 14:09:32,232 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-27 14:09:32,232 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-08-27 14:09:32,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.08 02:09:32 BoogieIcfgContainer [2021-08-27 14:09:32,236 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-08-27 14:09:32,237 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 14:09:32,237 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 14:09:32,237 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 14:09:32,237 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 02:09:31" (3/4) ... [2021-08-27 14:09:32,241 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-27 14:09:32,241 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 14:09:32,243 INFO L168 Benchmark]: Toolchain (without parser) took 1590.71 ms. Allocated memory was 62.9 MB in the beginning and 75.5 MB in the end (delta: 12.6 MB). Free memory was 43.6 MB in the beginning and 36.4 MB in the end (delta: 7.3 MB). Peak memory consumption was 19.6 MB. Max. memory is 16.1 GB. [2021-08-27 14:09:32,243 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 62.9 MB. Free memory is still 44.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 14:09:32,244 INFO L168 Benchmark]: CACSL2BoogieTranslator took 149.66 ms. Allocated memory is still 62.9 MB. Free memory was 43.5 MB in the beginning and 34.8 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-08-27 14:09:32,244 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.71 ms. Allocated memory is still 62.9 MB. Free memory was 34.8 MB in the beginning and 47.3 MB in the end (delta: -12.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-27 14:09:32,245 INFO L168 Benchmark]: Boogie Preprocessor took 12.86 ms. Allocated memory is still 62.9 MB. Free memory was 47.3 MB in the beginning and 46.5 MB in the end (delta: 810.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 14:09:32,245 INFO L168 Benchmark]: RCFGBuilder took 203.28 ms. Allocated memory is still 62.9 MB. Free memory was 46.3 MB in the beginning and 37.8 MB in the end (delta: 8.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-08-27 14:09:32,246 INFO L168 Benchmark]: BuchiAutomizer took 1156.46 ms. Allocated memory was 62.9 MB in the beginning and 75.5 MB in the end (delta: 12.6 MB). Free memory was 37.5 MB in the beginning and 36.9 MB in the end (delta: 694.0 kB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-08-27 14:09:32,246 INFO L168 Benchmark]: Witness Printer took 4.57 ms. Allocated memory is still 75.5 MB. Free memory was 36.9 MB in the beginning and 36.4 MB in the end (delta: 489.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 14:09:32,250 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 62.9 MB. Free memory is still 44.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 149.66 ms. Allocated memory is still 62.9 MB. Free memory was 43.5 MB in the beginning and 34.8 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 56.71 ms. Allocated memory is still 62.9 MB. Free memory was 34.8 MB in the beginning and 47.3 MB in the end (delta: -12.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 12.86 ms. Allocated memory is still 62.9 MB. Free memory was 47.3 MB in the beginning and 46.5 MB in the end (delta: 810.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 203.28 ms. Allocated memory is still 62.9 MB. Free memory was 46.3 MB in the beginning and 37.8 MB in the end (delta: 8.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 1156.46 ms. Allocated memory was 62.9 MB in the beginning and 75.5 MB in the end (delta: 12.6 MB). Free memory was 37.5 MB in the beginning and 36.9 MB in the end (delta: 694.0 kB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * Witness Printer took 4.57 ms. Allocated memory is still 75.5 MB. Free memory was 36.9 MB in the beginning and 36.4 MB in the end (delta: 489.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 1.1s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 5 SDtfs, 5 SDslu, 4 SDs, 0 SdLazy, 3 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.4ms Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax100 hnf100 lsp66 ukn100 mio100 lsp100 div450 bol100 ite100 ukn100 eq108 hnf46 smp100 dnf100 smp100 tf108 neg100 sie108 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 25ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-08-27 14:09:32,281 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 [2021-08-27 14:09:32,498 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...