./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted/Mysore-2.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-crafted/Mysore-2.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 86a466e94bfa75cb76f97095bf8fe7fd27594940 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 13:55:06,674 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 13:55:06,676 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 13:55:06,708 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 13:55:06,709 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 13:55:06,724 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 13:55:06,725 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 13:55:06,727 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 13:55:06,728 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 13:55:06,728 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 13:55:06,729 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 13:55:06,730 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 13:55:06,730 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 13:55:06,730 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 13:55:06,731 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 13:55:06,732 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 13:55:06,732 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 13:55:06,733 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 13:55:06,734 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 13:55:06,735 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 13:55:06,736 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 13:55:06,737 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 13:55:06,737 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 13:55:06,738 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 13:55:06,754 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 13:55:06,755 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 13:55:06,755 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 13:55:06,756 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 13:55:06,756 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 13:55:06,757 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 13:55:06,757 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 13:55:06,758 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 13:55:06,758 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 13:55:06,759 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 13:55:06,760 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 13:55:06,760 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 13:55:06,761 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 13:55:06,761 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 13:55:06,761 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 13:55:06,762 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 13:55:06,762 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 13:55:06,763 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-08-27 13:55:06,793 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 13:55:06,793 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 13:55:06,794 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 13:55:06,794 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 13:55:06,795 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 13:55:06,795 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 13:55:06,795 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 13:55:06,795 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-27 13:55:06,795 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-27 13:55:06,795 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-27 13:55:06,795 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-27 13:55:06,795 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-27 13:55:06,796 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-27 13:55:06,796 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 13:55:06,796 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 13:55:06,796 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 13:55:06,796 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 13:55:06,796 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-27 13:55:06,796 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-27 13:55:06,797 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-27 13:55:06,804 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-27 13:55:06,804 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-27 13:55:06,804 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 13:55:06,804 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-27 13:55:06,804 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 13:55:06,805 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 13:55:06,805 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 13:55:06,805 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 13:55:06,805 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 13:55:06,806 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-27 13:55:06,806 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 86a466e94bfa75cb76f97095bf8fe7fd27594940 [2021-08-27 13:55:07,088 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 13:55:07,102 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 13:55:07,103 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 13:55:07,104 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 13:55:07,105 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 13:55:07,105 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/Mysore-2.c [2021-08-27 13:55:07,237 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d9acc931/1bedcd1687e04f8dbb7c84c66d4879f4/FLAG075edcc27 [2021-08-27 13:55:07,608 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 13:55:07,608 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/Mysore-2.c [2021-08-27 13:55:07,613 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d9acc931/1bedcd1687e04f8dbb7c84c66d4879f4/FLAG075edcc27 [2021-08-27 13:55:07,623 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d9acc931/1bedcd1687e04f8dbb7c84c66d4879f4 [2021-08-27 13:55:07,630 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 13:55:07,632 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-27 13:55:07,633 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 13:55:07,633 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 13:55:07,635 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 13:55:07,636 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 01:55:07" (1/1) ... [2021-08-27 13:55:07,637 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a77a587 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:55:07, skipping insertion in model container [2021-08-27 13:55:07,637 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 01:55:07" (1/1) ... [2021-08-27 13:55:07,642 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 13:55:07,650 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 13:55:07,728 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 13:55:07,731 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 13:55:07,740 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 13:55:07,748 INFO L208 MainTranslator]: Completed translation [2021-08-27 13:55:07,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:55:07 WrapperNode [2021-08-27 13:55:07,749 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 13:55:07,750 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-27 13:55:07,750 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-27 13:55:07,751 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-27 13:55:07,756 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:55:07" (1/1) ... [2021-08-27 13:55:07,759 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:55:07" (1/1) ... [2021-08-27 13:55:07,793 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-27 13:55:07,813 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 13:55:07,814 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 13:55:07,814 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 13:55:07,820 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:55:07" (1/1) ... [2021-08-27 13:55:07,821 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:55:07" (1/1) ... [2021-08-27 13:55:07,821 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:55:07" (1/1) ... [2021-08-27 13:55:07,821 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:55:07" (1/1) ... [2021-08-27 13:55:07,823 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:55:07" (1/1) ... [2021-08-27 13:55:07,827 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:55:07" (1/1) ... [2021-08-27 13:55:07,827 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:55:07" (1/1) ... [2021-08-27 13:55:07,832 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 13:55:07,833 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 13:55:07,834 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 13:55:07,834 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 13:55:07,835 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:55:07" (1/1) ... [2021-08-27 13:55:07,841 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:07,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:07,890 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 13:55:07,914 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 13:55:07,924 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 13:55:07,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 13:55:08,054 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 13:55:08,054 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-08-27 13:55:08,055 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 01:55:08 BoogieIcfgContainer [2021-08-27 13:55:08,055 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 13:55:08,057 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-27 13:55:08,057 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-27 13:55:08,059 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-27 13:55:08,059 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 13:55:08,060 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.08 01:55:07" (1/3) ... [2021-08-27 13:55:08,060 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@e6273b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 01:55:08, skipping insertion in model container [2021-08-27 13:55:08,060 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 13:55:08,060 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:55:07" (2/3) ... [2021-08-27 13:55:08,061 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@e6273b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 01:55:08, skipping insertion in model container [2021-08-27 13:55:08,061 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 13:55:08,061 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 01:55:08" (3/3) ... [2021-08-27 13:55:08,063 INFO L389 chiAutomizerObserver]: Analyzing ICFG Mysore-2.c [2021-08-27 13:55:08,115 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-27 13:55:08,115 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-27 13:55:08,116 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-27 13:55:08,116 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-27 13:55:08,116 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-27 13:55:08,116 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-27 13:55:08,116 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-27 13:55:08,116 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-27 13:55:08,126 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 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 13:55:08,138 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-08-27 13:55:08,138 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 13:55:08,138 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 13:55:08,142 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-08-27 13:55:08,142 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-08-27 13:55:08,143 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-27 13:55:08,143 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 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 13:55:08,144 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-08-27 13:55:08,144 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 13:55:08,144 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 13:55:08,155 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-08-27 13:55:08,155 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-08-27 13:55:08,161 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~x~0;havoc main_~c~0;havoc main_~x~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~c~0 := main_#t~nondet1;havoc main_#t~nondet1; 7#L19true assume !!(-65535 <= main_~x~0 && main_~x~0 <= 65535); 9#L20true assume !!(-65535 <= main_~c~0 && main_~c~0 <= 65535); 6#L21true assume main_~c~0 >= 2; 8#L22-2true [2021-08-27 13:55:08,163 INFO L793 eck$LassoCheckResult]: Loop: 8#L22-2true assume !!(main_~x~0 + main_~c~0 >= 0);main_~x~0 := main_~x~0 - main_~c~0;main_~c~0 := 1 + main_~c~0; 8#L22-2true [2021-08-27 13:55:08,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:08,168 INFO L82 PathProgramCache]: Analyzing trace with hash 959433, now seen corresponding path program 1 times [2021-08-27 13:55:08,176 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:55:08,176 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029056445] [2021-08-27 13:55:08,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:55:08,177 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:55:08,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:55:08,225 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 13:55:08,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:55:08,244 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 13:55:08,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:08,247 INFO L82 PathProgramCache]: Analyzing trace with hash 54, now seen corresponding path program 1 times [2021-08-27 13:55:08,247 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:55:08,247 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265357266] [2021-08-27 13:55:08,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:55:08,248 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:55:08,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:55:08,260 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 13:55:08,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:55:08,271 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 13:55:08,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:08,273 INFO L82 PathProgramCache]: Analyzing trace with hash 29742446, now seen corresponding path program 1 times [2021-08-27 13:55:08,273 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:55:08,274 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339949558] [2021-08-27 13:55:08,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:55:08,274 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:55:08,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:55:08,288 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 13:55:08,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:55:08,301 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 13:55:08,422 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 13:55:08,423 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 13:55:08,423 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 13:55:08,423 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 13:55:08,423 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-08-27 13:55:08,424 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:08,424 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 13:55:08,424 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 13:55:08,424 INFO L133 ssoRankerPreferences]: Filename of dumped script: Mysore-2.c_Iteration1_Loop [2021-08-27 13:55:08,424 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 13:55:08,424 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 13:55:08,439 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 13:55:08,467 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:08,476 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 13:55:08,551 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 13:55:08,551 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-08-27 13:55:08,553 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:08,554 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:08,569 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 13:55:08,570 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 13:55:08,573 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 13:55:08,574 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 13:55:08,593 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-27 13:55:08,593 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 13:55:08,613 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 13:55:08,613 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:08,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:08,614 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 13:55:08,622 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 13:55:08,622 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 13:55:08,634 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 13:55:08,640 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-27 13:55:08,640 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 13:55:08,656 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 13:55:08,656 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:08,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:08,661 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 13:55:08,663 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 13:55:08,664 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 13:55:08,664 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 13:55:08,723 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 13:55:08,723 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:08,724 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:08,735 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 13:55:08,737 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 13:55:08,738 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-27 13:55:08,738 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 13:55:08,875 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-08-27 13:55:08,880 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 13:55:08,880 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 13:55:08,880 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 13:55:08,880 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 13:55:08,880 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 13:55:08,880 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 13:55:08,880 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:08,880 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 13:55:08,880 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 13:55:08,880 INFO L133 ssoRankerPreferences]: Filename of dumped script: Mysore-2.c_Iteration1_Loop [2021-08-27 13:55:08,881 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 13:55:08,881 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 13:55:08,883 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 13:55:08,886 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 13:55:08,888 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 13:55:08,944 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 13:55:08,947 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 13:55:08,948 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:08,949 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:08,965 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 13:55:08,997 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 13:55:08,998 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 13:55:09,005 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:55:09,006 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:55:09,006 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:55:09,006 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:55:09,009 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 13:55:09,009 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 13:55:09,028 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:55:09,044 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 13:55:09,044 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:09,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:09,046 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 13:55:09,047 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 13:55:09,048 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 13:55:09,055 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:55:09,055 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:55:09,055 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:55:09,055 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:55:09,057 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 13:55:09,057 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 13:55:09,073 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:55:09,092 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 13:55:09,092 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:09,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:09,093 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 13:55:09,094 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 13:55:09,096 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 13:55:09,102 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:55:09,102 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 13:55:09,103 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:55:09,103 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:55:09,103 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:55:09,110 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 13:55:09,110 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 13:55:09,125 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:55:09,142 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 13:55:09,143 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-08-27 13:55:09,143 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:09,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:09,144 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 13:55:09,145 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 13:55:09,148 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 13:55:09,159 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:55:09,159 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:55:09,159 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:55:09,159 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-08-27 13:55:09,162 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2021-08-27 13:55:09,162 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2021-08-27 13:55:09,179 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:55:09,197 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 13:55:09,197 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:09,197 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:09,198 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 13:55:09,199 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 13:55:09,200 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 13:55:09,207 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:55:09,207 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:55:09,207 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:55:09,208 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-08-27 13:55:09,211 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2021-08-27 13:55:09,211 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2021-08-27 13:55:09,216 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:55:09,233 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 13:55:09,233 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:09,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:09,234 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 13:55:09,235 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 13:55:09,237 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 13:55:09,244 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:55:09,244 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 13:55:09,244 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:55:09,244 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:55:09,244 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-08-27 13:55:09,257 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-08-27 13:55:09,257 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 13:55:09,269 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 13:55:09,276 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-08-27 13:55:09,276 INFO L444 ModelExtractionUtils]: 1 out of 7 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-08-27 13:55:09,277 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:09,277 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:09,278 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 13:55:09,288 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 13:55:09,288 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-08-27 13:55:09,288 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 13:55:09,288 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = -2*ULTIMATE.start_main_~c~0 + 3 f1 = 2*ULTIMATE.start_main_~x~0 + 2*ULTIMATE.start_main_~c~0 + 1 Supporting invariants [] [2021-08-27 13:55:09,289 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 13:55:09,312 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 13:55:09,314 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-08-27 13:55:09,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:09,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:09,349 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 13:55:09,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:09,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:09,375 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-27 13:55:09,382 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:09,382 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 13:55:09,392 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 13:55:09,393 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 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 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 13:55:09,414 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 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 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 22 states and 27 transitions. Complement of second has 5 states. [2021-08-27 13:55:09,414 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 13:55:09,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 13:55:09,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2021-08-27 13:55:09,416 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 4 letters. Loop has 1 letters. [2021-08-27 13:55:09,417 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:55:09,417 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 5 letters. Loop has 1 letters. [2021-08-27 13:55:09,417 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:55:09,417 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 4 letters. Loop has 2 letters. [2021-08-27 13:55:09,418 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:55:09,418 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 27 transitions. [2021-08-27 13:55:09,420 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-27 13:55:09,422 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 0 states and 0 transitions. [2021-08-27 13:55:09,423 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-08-27 13:55:09,423 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-08-27 13:55:09,424 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-08-27 13:55:09,424 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 13:55:09,424 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 13:55:09,424 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 13:55:09,424 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 13:55:09,424 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-27 13:55:09,424 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-08-27 13:55:09,424 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-27 13:55:09,425 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-08-27 13:55:09,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.08 01:55:09 BoogieIcfgContainer [2021-08-27 13:55:09,429 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-08-27 13:55:09,429 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 13:55:09,430 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 13:55:09,430 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 13:55:09,430 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 01:55:08" (3/4) ... [2021-08-27 13:55:09,432 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-27 13:55:09,432 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 13:55:09,433 INFO L168 Benchmark]: Toolchain (without parser) took 1800.95 ms. Allocated memory was 56.6 MB in the beginning and 73.4 MB in the end (delta: 16.8 MB). Free memory was 35.7 MB in the beginning and 41.1 MB in the end (delta: -5.5 MB). Peak memory consumption was 10.0 MB. Max. memory is 16.1 GB. [2021-08-27 13:55:09,434 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 56.6 MB. Free memory was 38.8 MB in the beginning and 38.8 MB in the end (delta: 41.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 13:55:09,434 INFO L168 Benchmark]: CACSL2BoogieTranslator took 116.56 ms. Allocated memory is still 56.6 MB. Free memory was 35.5 MB in the beginning and 27.0 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-08-27 13:55:09,434 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.79 ms. Allocated memory is still 56.6 MB. Free memory was 26.9 MB in the beginning and 40.7 MB in the end (delta: -13.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-27 13:55:09,435 INFO L168 Benchmark]: Boogie Preprocessor took 18.31 ms. Allocated memory is still 56.6 MB. Free memory was 40.7 MB in the beginning and 39.8 MB in the end (delta: 926.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 13:55:09,435 INFO L168 Benchmark]: RCFGBuilder took 222.62 ms. Allocated memory is still 56.6 MB. Free memory was 39.8 MB in the beginning and 30.5 MB in the end (delta: 9.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-08-27 13:55:09,436 INFO L168 Benchmark]: BuchiAutomizer took 1371.95 ms. Allocated memory was 56.6 MB in the beginning and 73.4 MB in the end (delta: 16.8 MB). Free memory was 30.3 MB in the beginning and 41.5 MB in the end (delta: -11.2 MB). Peak memory consumption was 7.1 MB. Max. memory is 16.1 GB. [2021-08-27 13:55:09,436 INFO L168 Benchmark]: Witness Printer took 2.45 ms. Allocated memory is still 73.4 MB. Free memory was 41.5 MB in the beginning and 41.1 MB in the end (delta: 403.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 13:55:09,438 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 56.6 MB. Free memory was 38.8 MB in the beginning and 38.8 MB in the end (delta: 41.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 116.56 ms. Allocated memory is still 56.6 MB. Free memory was 35.5 MB in the beginning and 27.0 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 62.79 ms. Allocated memory is still 56.6 MB. Free memory was 26.9 MB in the beginning and 40.7 MB in the end (delta: -13.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 18.31 ms. Allocated memory is still 56.6 MB. Free memory was 40.7 MB in the beginning and 39.8 MB in the end (delta: 926.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 222.62 ms. Allocated memory is still 56.6 MB. Free memory was 39.8 MB in the beginning and 30.5 MB in the end (delta: 9.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 1371.95 ms. Allocated memory was 56.6 MB in the beginning and 73.4 MB in the end (delta: 16.8 MB). Free memory was 30.3 MB in the beginning and 41.5 MB in the end (delta: -11.2 MB). Peak memory consumption was 7.1 MB. Max. memory is 16.1 GB. * Witness Printer took 2.45 ms. Allocated memory is still 73.4 MB. Free memory was 41.5 MB in the beginning and 41.1 MB in the end (delta: 403.8 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 2-nested ranking function (if 3 + -2 * c > 0 then 1 else 0), (if 3 + -2 * c > 0 then 3 + -2 * c else 2 * x + 1 + 2 * c) and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.3s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 13 SDtfs, 13 SDslu, 3 SDs, 0 SdLazy, 3 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.3ms Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital17 mio100 ax170 hnf100 lsp58 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq170 hnf93 smp100 dnf100 smp100 tf107 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 35ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 3 MotzkinApplications: 9 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-08-27 13:55:09,459 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 13:55:09,668 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...