./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/java_Sequence.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-restricted-15/java_Sequence.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 535f92a2734d803c22d5e10e2200913cae078252 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 14:13:09,612 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 14:13:09,614 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 14:13:09,651 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 14:13:09,651 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 14:13:09,654 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 14:13:09,656 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 14:13:09,660 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 14:13:09,663 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 14:13:09,666 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 14:13:09,667 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 14:13:09,670 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 14:13:09,671 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 14:13:09,673 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 14:13:09,674 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 14:13:09,677 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 14:13:09,677 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 14:13:09,678 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 14:13:09,680 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 14:13:09,686 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 14:13:09,687 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 14:13:09,687 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 14:13:09,689 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 14:13:09,690 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 14:13:09,695 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 14:13:09,696 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 14:13:09,696 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 14:13:09,697 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 14:13:09,698 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 14:13:09,698 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 14:13:09,699 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 14:13:09,699 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 14:13:09,700 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 14:13:09,701 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 14:13:09,702 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 14:13:09,702 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 14:13:09,703 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 14:13:09,703 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 14:13:09,703 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 14:13:09,705 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 14:13:09,705 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 14:13:09,706 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-08-27 14:13:09,754 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 14:13:09,754 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 14:13:09,755 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 14:13:09,755 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 14:13:09,757 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 14:13:09,757 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 14:13:09,758 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 14:13:09,758 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-27 14:13:09,758 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-27 14:13:09,758 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-27 14:13:09,759 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-27 14:13:09,759 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-27 14:13:09,759 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-27 14:13:09,759 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 14:13:09,760 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 14:13:09,760 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 14:13:09,760 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 14:13:09,760 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-27 14:13:09,760 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-27 14:13:09,761 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-27 14:13:09,761 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-27 14:13:09,761 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-27 14:13:09,761 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 14:13:09,761 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-27 14:13:09,762 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 14:13:09,762 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 14:13:09,762 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 14:13:09,762 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 14:13:09,762 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 14:13:09,763 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-27 14:13:09,763 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 535f92a2734d803c22d5e10e2200913cae078252 [2021-08-27 14:13:10,060 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 14:13:10,081 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 14:13:10,083 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 14:13:10,084 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 14:13:10,086 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 14:13:10,087 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/java_Sequence.c [2021-08-27 14:13:10,137 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fbc376da4/afe2a2a213c54b80ab8ba36e46b739ce/FLAG733fadbbd [2021-08-27 14:13:10,498 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 14:13:10,498 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/java_Sequence.c [2021-08-27 14:13:10,503 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fbc376da4/afe2a2a213c54b80ab8ba36e46b739ce/FLAG733fadbbd [2021-08-27 14:13:10,513 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fbc376da4/afe2a2a213c54b80ab8ba36e46b739ce [2021-08-27 14:13:10,515 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 14:13:10,516 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-27 14:13:10,517 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 14:13:10,517 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 14:13:10,520 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 14:13:10,520 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 02:13:10" (1/1) ... [2021-08-27 14:13:10,521 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4df164cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:13:10, skipping insertion in model container [2021-08-27 14:13:10,521 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 02:13:10" (1/1) ... [2021-08-27 14:13:10,526 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 14:13:10,534 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 14:13:10,621 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 14:13:10,624 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 14:13:10,634 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 14:13:10,642 INFO L208 MainTranslator]: Completed translation [2021-08-27 14:13:10,643 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:13:10 WrapperNode [2021-08-27 14:13:10,643 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 14:13:10,644 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-27 14:13:10,644 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-27 14:13:10,644 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-27 14:13:10,649 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:13:10" (1/1) ... [2021-08-27 14:13:10,656 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:13:10" (1/1) ... [2021-08-27 14:13:10,669 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-27 14:13:10,670 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 14:13:10,670 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 14:13:10,671 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 14:13:10,682 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:13:10" (1/1) ... [2021-08-27 14:13:10,682 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:13:10" (1/1) ... [2021-08-27 14:13:10,683 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:13:10" (1/1) ... [2021-08-27 14:13:10,683 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:13:10" (1/1) ... [2021-08-27 14:13:10,684 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:13:10" (1/1) ... [2021-08-27 14:13:10,688 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:13:10" (1/1) ... [2021-08-27 14:13:10,688 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:13:10" (1/1) ... [2021-08-27 14:13:10,689 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 14:13:10,690 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 14:13:10,690 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 14:13:10,691 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 14:13:10,691 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:13:10" (1/1) ... [2021-08-27 14:13:10,702 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:13:10,707 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:13:10,719 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 14:13:10,742 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 14:13:10,759 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 14:13:10,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 14:13:10,905 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 14:13:10,906 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-08-27 14:13:10,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 02:13:10 BoogieIcfgContainer [2021-08-27 14:13:10,908 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 14:13:10,909 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-27 14:13:10,909 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-27 14:13:10,911 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-27 14:13:10,912 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 14:13:10,912 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.08 02:13:10" (1/3) ... [2021-08-27 14:13:10,913 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3df2553d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 02:13:10, skipping insertion in model container [2021-08-27 14:13:10,913 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 14:13:10,913 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:13:10" (2/3) ... [2021-08-27 14:13:10,914 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3df2553d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 02:13:10, skipping insertion in model container [2021-08-27 14:13:10,914 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 14:13:10,914 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 02:13:10" (3/3) ... [2021-08-27 14:13:10,915 INFO L389 chiAutomizerObserver]: Analyzing ICFG java_Sequence.c [2021-08-27 14:13:10,963 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-27 14:13:10,963 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-27 14:13:10,963 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-27 14:13:10,964 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-27 14:13:10,964 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-27 14:13:10,964 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-27 14:13:10,964 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-27 14:13:10,964 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-27 14:13:10,975 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 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 14:13:10,989 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2021-08-27 14:13:10,989 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 14:13:10,989 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 14:13:10,993 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-08-27 14:13:10,993 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-08-27 14:13:10,994 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-27 14:13:10,994 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 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 14:13:10,995 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2021-08-27 14:13:10,995 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 14:13:10,996 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 14:13:10,996 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-08-27 14:13:10,996 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-08-27 14:13:11,001 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_~i~0, main_~j~0, main_~c~0;havoc main_~i~0;havoc main_~j~0;havoc main_~c~0;main_~c~0 := 0;main_~i~0 := 0; 4#L10-2true [2021-08-27 14:13:11,001 INFO L793 eck$LassoCheckResult]: Loop: 4#L10-2true assume !!(main_~i~0 < 100);main_~c~0 := 1 + main_~c~0;main_~i~0 := 1 + main_~i~0; 4#L10-2true [2021-08-27 14:13:11,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:13:11,005 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2021-08-27 14:13:11,011 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:13:11,012 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779302423] [2021-08-27 14:13:11,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:13:11,013 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:13:11,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:13:11,073 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:13:11,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:13:11,092 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:13:11,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:13:11,096 INFO L82 PathProgramCache]: Analyzing trace with hash 41, now seen corresponding path program 1 times [2021-08-27 14:13:11,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:13:11,097 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132203355] [2021-08-27 14:13:11,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:13:11,098 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:13:11,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:13:11,120 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:13:11,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:13:11,132 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:13:11,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:13:11,133 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2021-08-27 14:13:11,133 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:13:11,134 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695084379] [2021-08-27 14:13:11,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:13:11,134 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:13:11,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:13:11,140 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:13:11,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:13:11,152 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:13:11,275 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 14:13:11,275 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 14:13:11,275 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 14:13:11,276 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 14:13:11,276 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-08-27 14:13:11,276 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:13:11,276 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 14:13:11,276 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 14:13:11,276 INFO L133 ssoRankerPreferences]: Filename of dumped script: java_Sequence.c_Iteration1_Loop [2021-08-27 14:13:11,276 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 14:13:11,276 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 14:13:11,303 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 14:13:11,313 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 14:13:11,318 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 14:13:11,337 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 14:13:11,461 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 14:13:11,461 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-08-27 14:13:11,463 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:13:11,463 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:13:11,464 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 14:13:11,476 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 14:13:11,476 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 14:13:11,485 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 14:13:11,493 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-27 14:13:11,493 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-27 14:13:11,511 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 14:13:11,513 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:13:11,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:13:11,514 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 14:13:11,514 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 14:13:11,516 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 14:13:11,516 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 14:13:11,530 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-27 14:13:11,530 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-27 14:13:11,550 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 14:13:11,551 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:13:11,551 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:13:11,551 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 14:13:11,555 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 14:13:11,556 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 14:13:11,557 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 14:13:11,580 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 14:13:11,580 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:13:11,580 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:13:11,586 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 14:13:11,587 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 14:13:11,616 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-27 14:13:11,617 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 14:13:11,646 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-08-27 14:13:11,649 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-08-27 14:13:11,650 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 14:13:11,650 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 14:13:11,650 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 14:13:11,650 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 14:13:11,650 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 14:13:11,650 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:13:11,650 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 14:13:11,650 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 14:13:11,650 INFO L133 ssoRankerPreferences]: Filename of dumped script: java_Sequence.c_Iteration1_Loop [2021-08-27 14:13:11,650 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 14:13:11,650 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 14:13:11,660 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 14:13:11,665 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 14:13:11,674 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 14:13:11,688 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 14:13:11,769 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 14:13:11,772 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 14:13:11,773 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:13:11,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:13:11,774 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 14:13:11,784 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 14:13:11,788 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 14:13:11,793 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:13:11,793 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:13:11,793 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:13:11,793 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:13:11,798 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:13:11,798 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:13:11,825 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:13:11,852 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 [2021-08-27 14:13:11,853 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:13:11,853 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:13:11,854 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 14:13:11,859 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 14:13:11,862 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 14:13:11,867 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:13:11,867 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:13:11,867 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:13:11,868 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:13:11,872 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:13:11,872 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:13:11,880 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:13:11,898 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-08-27 14:13:11,899 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:13:11,899 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:13:11,900 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 14:13:11,901 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 14:13:11,902 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 14:13:11,908 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:13:11,909 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:13:11,909 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:13:11,909 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:13:11,909 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:13:11,914 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:13:11,914 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:13:11,931 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 14:13:11,935 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-08-27 14:13:11,935 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-08-27 14:13:11,936 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:13:11,936 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:13:11,937 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:13:11,938 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-08-27 14:13:11,939 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 14:13:11,939 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-08-27 14:13:11,939 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 14:13:11,940 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 199 Supporting invariants [] [2021-08-27 14:13:11,954 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 14:13:11,956 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-08-27 14:13:11,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:13:11,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:13:11,996 INFO L263 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 14:13:11,997 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 14:13:12,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:13:12,006 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 14:13:12,006 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 14:13:12,007 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 14:13:12,017 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 14:13:12,018 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 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 14:13:12,044 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 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 21 states and 29 transitions. Complement of second has 5 states. [2021-08-27 14:13:12,045 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 14:13:12,046 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 14:13:12,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2021-08-27 14:13:12,048 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 1 letters. Loop has 1 letters. [2021-08-27 14:13:12,048 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 14:13:12,048 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 2 letters. Loop has 1 letters. [2021-08-27 14:13:12,048 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 14:13:12,048 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 1 letters. Loop has 2 letters. [2021-08-27 14:13:12,049 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 14:13:12,049 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 29 transitions. [2021-08-27 14:13:12,051 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-08-27 14:13:12,054 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 5 states and 7 transitions. [2021-08-27 14:13:12,055 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2021-08-27 14:13:12,055 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2021-08-27 14:13:12,055 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 7 transitions. [2021-08-27 14:13:12,056 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 14:13:12,056 INFO L681 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2021-08-27 14:13:12,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states and 7 transitions. [2021-08-27 14:13:12,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2021-08-27 14:13:12,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 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 14:13:12,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 7 transitions. [2021-08-27 14:13:12,070 INFO L704 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2021-08-27 14:13:12,071 INFO L587 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2021-08-27 14:13:12,071 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-27 14:13:12,071 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 7 transitions. [2021-08-27 14:13:12,071 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-08-27 14:13:12,071 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 14:13:12,072 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 14:13:12,072 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-08-27 14:13:12,072 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-08-27 14:13:12,072 INFO L791 eck$LassoCheckResult]: Stem: 61#ULTIMATE.startENTRY havoc main_#res;havoc main_~i~0, main_~j~0, main_~c~0;havoc main_~i~0;havoc main_~j~0;havoc main_~c~0;main_~c~0 := 0;main_~i~0 := 0; 58#L10-2 assume !(main_~i~0 < 100); 59#L10-3 main_~j~0 := 5; 62#L15-2 [2021-08-27 14:13:12,072 INFO L793 eck$LassoCheckResult]: Loop: 62#L15-2 assume !!(main_~j~0 < 21);main_~c~0 := 1 + main_~c~0;main_~j~0 := 3 + main_~j~0; 62#L15-2 [2021-08-27 14:13:12,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:13:12,073 INFO L82 PathProgramCache]: Analyzing trace with hash 31014, now seen corresponding path program 1 times [2021-08-27 14:13:12,073 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:13:12,074 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213316334] [2021-08-27 14:13:12,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:13:12,074 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:13:12,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:13:12,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 14:13:12,101 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 14:13:12,101 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213316334] [2021-08-27 14:13:12,101 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213316334] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 14:13:12,101 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 14:13:12,101 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-27 14:13:12,102 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299496896] [2021-08-27 14:13:12,103 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-08-27 14:13:12,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:13:12,104 INFO L82 PathProgramCache]: Analyzing trace with hash 54, now seen corresponding path program 1 times [2021-08-27 14:13:12,104 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:13:12,104 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803474050] [2021-08-27 14:13:12,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:13:12,104 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:13:12,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:13:12,109 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:13:12,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:13:12,112 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:13:12,164 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 [2021-08-27 14:13:12,175 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 14:13:12,176 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 14:13:12,182 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 14:13:12,182 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 14:13:12,182 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-08-27 14:13:12,183 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:13:12,183 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 14:13:12,183 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 14:13:12,183 INFO L133 ssoRankerPreferences]: Filename of dumped script: java_Sequence.c_Iteration2_Loop [2021-08-27 14:13:12,183 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 14:13:12,183 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 14:13:12,186 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 14:13:12,191 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 14:13:12,209 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 14:13:12,218 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 14:13:12,290 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 14:13:12,291 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-08-27 14:13:12,291 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:13:12,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:13:12,297 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:13:12,301 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-08-27 14:13:12,302 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 14:13:12,302 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 14:13:12,324 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-27 14:13:12,324 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-27 14:13:12,349 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-08-27 14:13:12,350 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:13:12,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:13:12,351 INFO L229 MonitoredProcess]: Starting monitored process 11 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 14:13:12,358 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 14:13:12,358 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 14:13:12,368 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-08-27 14:13:12,381 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-27 14:13:12,381 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-27 14:13:12,400 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-08-27 14:13:12,401 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:13:12,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:13:12,402 INFO L229 MonitoredProcess]: Starting monitored process 12 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 14:13:12,403 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-08-27 14:13:12,404 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 14:13:12,404 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 14:13:12,444 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-08-27 14:13:12,444 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:13:12,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:13:12,445 INFO L229 MonitoredProcess]: Starting monitored process 13 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 14:13:12,445 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-08-27 14:13:12,447 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-27 14:13:12,447 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 14:13:12,475 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-08-27 14:13:12,481 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-08-27 14:13:12,481 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 14:13:12,481 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 14:13:12,481 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 14:13:12,482 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 14:13:12,482 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 14:13:12,482 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:13:12,482 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 14:13:12,482 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 14:13:12,482 INFO L133 ssoRankerPreferences]: Filename of dumped script: java_Sequence.c_Iteration2_Loop [2021-08-27 14:13:12,482 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 14:13:12,482 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 14:13:12,483 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 14:13:12,489 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 14:13:12,494 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 14:13:12,504 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 14:13:12,576 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 14:13:12,576 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 14:13:12,577 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:13:12,577 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:13:12,578 INFO L229 MonitoredProcess]: Starting monitored process 14 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 14:13:12,583 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-08-27 14:13:12,584 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 14:13:12,591 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:13:12,591 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:13:12,591 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:13:12,591 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:13:12,601 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:13:12,601 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:13:12,616 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:13:12,640 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-08-27 14:13:12,641 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:13:12,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:13:12,645 INFO L229 MonitoredProcess]: Starting monitored process 15 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 14:13:12,646 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-08-27 14:13:12,648 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 14:13:12,655 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:13:12,655 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:13:12,655 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:13:12,655 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:13:12,658 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:13:12,659 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:13:12,680 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:13:12,705 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-08-27 14:13:12,705 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:13:12,705 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:13:12,706 INFO L229 MonitoredProcess]: Starting monitored process 16 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 14:13:12,712 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 14:13:12,718 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-08-27 14:13:12,720 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:13:12,720 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:13:12,721 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:13:12,721 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:13:12,721 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:13:12,722 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:13:12,722 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:13:12,724 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 14:13:12,727 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-08-27 14:13:12,727 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-08-27 14:13:12,727 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:13:12,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:13:12,728 INFO L229 MonitoredProcess]: Starting monitored process 17 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 14:13:12,728 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-08-27 14:13:12,730 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 14:13:12,730 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-08-27 14:13:12,730 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 14:13:12,730 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0) = -2*ULTIMATE.start_main_~j~0 + 43 Supporting invariants [] [2021-08-27 14:13:12,745 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2021-08-27 14:13:12,746 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-08-27 14:13:12,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:13:12,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:13:12,785 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 14:13:12,786 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 14:13:12,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:13:12,806 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 14:13:12,806 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 14:13:12,806 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 14:13:12,807 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 14:13:12,807 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 5 states and 7 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 14:13:12,819 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 5 states and 7 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 6 states and 8 transitions. Complement of second has 2 states. [2021-08-27 14:13:12,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2021-08-27 14:13:12,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 14:13:12,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 5 transitions. [2021-08-27 14:13:12,822 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 5 transitions. Stem has 3 letters. Loop has 1 letters. [2021-08-27 14:13:12,823 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 14:13:12,823 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 5 transitions. Stem has 4 letters. Loop has 1 letters. [2021-08-27 14:13:12,823 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 14:13:12,823 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 5 transitions. Stem has 3 letters. Loop has 2 letters. [2021-08-27 14:13:12,823 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 14:13:12,824 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 6 states and 8 transitions. [2021-08-27 14:13:12,825 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-27 14:13:12,825 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 6 states to 0 states and 0 transitions. [2021-08-27 14:13:12,825 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-08-27 14:13:12,825 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-08-27 14:13:12,825 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-08-27 14:13:12,825 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 14:13:12,825 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 14:13:12,825 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 14:13:12,826 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 14:13:12,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 14:13:12,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 14:13:12,832 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 14:13:12,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 14:13:12,850 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2021-08-27 14:13:12,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-27 14:13:12,850 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2021-08-27 14:13:12,850 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-27 14:13:12,850 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2021-08-27 14:13:12,850 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-08-27 14:13:12,851 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-08-27 14:13:12,851 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-08-27 14:13:12,851 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 14:13:12,851 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 14:13:12,851 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 14:13:12,851 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 14:13:12,851 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-08-27 14:13:12,851 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-08-27 14:13:12,851 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-27 14:13:12,852 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-08-27 14:13:12,856 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-08-27 14:13:12,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.08 02:13:12 BoogieIcfgContainer [2021-08-27 14:13:12,860 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-08-27 14:13:12,860 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 14:13:12,860 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 14:13:12,860 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 14:13:12,861 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 02:13:10" (3/4) ... [2021-08-27 14:13:12,862 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-27 14:13:12,862 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 14:13:12,863 INFO L168 Benchmark]: Toolchain (without parser) took 2347.04 ms. Allocated memory was 69.2 MB in the beginning and 86.0 MB in the end (delta: 16.8 MB). Free memory was 49.1 MB in the beginning and 64.9 MB in the end (delta: -15.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 14:13:12,864 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 69.2 MB. Free memory was 50.0 MB in the beginning and 49.9 MB in the end (delta: 84.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 14:13:12,864 INFO L168 Benchmark]: CACSL2BoogieTranslator took 126.48 ms. Allocated memory is still 69.2 MB. Free memory was 49.0 MB in the beginning and 40.7 MB in the end (delta: 8.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-08-27 14:13:12,864 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.58 ms. Allocated memory is still 69.2 MB. Free memory was 40.5 MB in the beginning and 39.2 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 14:13:12,865 INFO L168 Benchmark]: Boogie Preprocessor took 18.93 ms. Allocated memory is still 69.2 MB. Free memory was 39.2 MB in the beginning and 52.2 MB in the end (delta: -13.0 MB). Peak memory consumption was 4.8 MB. Max. memory is 16.1 GB. [2021-08-27 14:13:12,865 INFO L168 Benchmark]: RCFGBuilder took 217.90 ms. Allocated memory is still 69.2 MB. Free memory was 52.2 MB in the beginning and 43.6 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-08-27 14:13:12,866 INFO L168 Benchmark]: BuchiAutomizer took 1951.12 ms. Allocated memory was 69.2 MB in the beginning and 86.0 MB in the end (delta: 16.8 MB). Free memory was 43.6 MB in the beginning and 64.9 MB in the end (delta: -21.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 14:13:12,866 INFO L168 Benchmark]: Witness Printer took 2.28 ms. Allocated memory is still 86.0 MB. Free memory is still 64.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 14:13:12,868 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 69.2 MB. Free memory was 50.0 MB in the beginning and 49.9 MB in the end (delta: 84.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 126.48 ms. Allocated memory is still 69.2 MB. Free memory was 49.0 MB in the beginning and 40.7 MB in the end (delta: 8.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 25.58 ms. Allocated memory is still 69.2 MB. Free memory was 40.5 MB in the beginning and 39.2 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 18.93 ms. Allocated memory is still 69.2 MB. Free memory was 39.2 MB in the beginning and 52.2 MB in the end (delta: -13.0 MB). Peak memory consumption was 4.8 MB. Max. memory is 16.1 GB. * RCFGBuilder took 217.90 ms. Allocated memory is still 69.2 MB. Free memory was 52.2 MB in the beginning and 43.6 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 1951.12 ms. Allocated memory was 69.2 MB in the beginning and 86.0 MB in the end (delta: 16.8 MB). Free memory was 43.6 MB in the beginning and 64.9 MB in the end (delta: -21.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 2.28 ms. Allocated memory is still 86.0 MB. Free memory is still 64.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * i + 199 and consists of 4 locations. One deterministic module has affine ranking function 43 + -2 * j and consists of 2 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.8s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 5.8ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 5 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 11 SDtfs, 10 SDslu, 6 SDs, 0 SdLazy, 4 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 14.4ms Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax179 hnf100 lsp37 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 51ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-08-27 14:13:12,896 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...