./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8a-modified.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 2329fc70 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-lit/CookSeeZuleger-TACAS2013-Fig8a-modified.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 06c9e9e5fbbf1cc74be5b07da6214ee5470bdc6403e06237275b94d0a60c1592 --- Real Ultimate output --- This is Ultimate 0.2.2-?-2329fc7 [2023-02-14 03:06:51,659 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-14 03:06:51,661 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-14 03:06:51,711 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-14 03:06:51,712 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-14 03:06:51,716 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-14 03:06:51,718 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-14 03:06:51,721 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-14 03:06:51,723 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-14 03:06:51,729 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-14 03:06:51,731 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-14 03:06:51,732 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-14 03:06:51,733 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-14 03:06:51,735 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-14 03:06:51,737 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-14 03:06:51,738 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-14 03:06:51,739 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-14 03:06:51,740 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-14 03:06:51,742 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-14 03:06:51,745 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-14 03:06:51,746 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-14 03:06:51,747 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-14 03:06:51,748 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-14 03:06:51,749 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-14 03:06:51,753 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-14 03:06:51,753 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-14 03:06:51,753 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-14 03:06:51,754 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-14 03:06:51,754 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-14 03:06:51,755 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-14 03:06:51,755 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-14 03:06:51,756 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-14 03:06:51,756 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-14 03:06:51,757 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-14 03:06:51,757 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-14 03:06:51,757 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-14 03:06:51,758 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-14 03:06:51,758 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-14 03:06:51,758 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-14 03:06:51,759 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-14 03:06:51,759 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-14 03:06:51,760 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-02-14 03:06:51,783 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-14 03:06:51,784 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-14 03:06:51,784 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-14 03:06:51,784 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-14 03:06:51,786 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-14 03:06:51,786 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-14 03:06:51,786 INFO L138 SettingsManager]: * Use SBE=true [2023-02-14 03:06:51,786 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-02-14 03:06:51,787 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-02-14 03:06:51,787 INFO L138 SettingsManager]: * Use old map elimination=false [2023-02-14 03:06:51,788 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2023-02-14 03:06:51,788 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2023-02-14 03:06:51,788 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-02-14 03:06:51,788 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-14 03:06:51,788 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-14 03:06:51,789 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-14 03:06:51,789 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-14 03:06:51,789 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-02-14 03:06:51,789 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-02-14 03:06:51,789 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-02-14 03:06:51,789 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-14 03:06:51,790 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-02-14 03:06:51,790 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-14 03:06:51,790 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-02-14 03:06:51,790 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-14 03:06:51,790 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-14 03:06:51,791 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-14 03:06:51,791 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-14 03:06:51,792 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-02-14 03:06:51,792 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 06c9e9e5fbbf1cc74be5b07da6214ee5470bdc6403e06237275b94d0a60c1592 [2023-02-14 03:06:52,050 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-14 03:06:52,083 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-14 03:06:52,086 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-14 03:06:52,088 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-14 03:06:52,088 INFO L275 PluginConnector]: CDTParser initialized [2023-02-14 03:06:52,089 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8a-modified.c [2023-02-14 03:06:53,339 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-14 03:06:53,498 INFO L351 CDTParser]: Found 1 translation units. [2023-02-14 03:06:53,499 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8a-modified.c [2023-02-14 03:06:53,504 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e92ca3356/979538c29d154d35b6ae7931e9d36f64/FLAG2bbeb773b [2023-02-14 03:06:53,520 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e92ca3356/979538c29d154d35b6ae7931e9d36f64 [2023-02-14 03:06:53,523 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-14 03:06:53,524 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-14 03:06:53,527 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-14 03:06:53,527 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-14 03:06:53,531 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-14 03:06:53,531 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.02 03:06:53" (1/1) ... [2023-02-14 03:06:53,534 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73fbdadd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 03:06:53, skipping insertion in model container [2023-02-14 03:06:53,535 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.02 03:06:53" (1/1) ... [2023-02-14 03:06:53,545 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-14 03:06:53,557 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-14 03:06:53,700 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-14 03:06:53,705 INFO L203 MainTranslator]: Completed pre-run [2023-02-14 03:06:53,719 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-14 03:06:53,730 INFO L208 MainTranslator]: Completed translation [2023-02-14 03:06:53,731 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 03:06:53 WrapperNode [2023-02-14 03:06:53,731 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-14 03:06:53,733 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-14 03:06:53,733 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-14 03:06:53,733 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-14 03:06:53,740 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 03:06:53" (1/1) ... [2023-02-14 03:06:53,746 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 03:06:53" (1/1) ... [2023-02-14 03:06:53,760 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 17 [2023-02-14 03:06:53,762 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-14 03:06:53,762 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-14 03:06:53,763 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-14 03:06:53,763 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-14 03:06:53,770 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 03:06:53" (1/1) ... [2023-02-14 03:06:53,771 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 03:06:53" (1/1) ... [2023-02-14 03:06:53,772 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 03:06:53" (1/1) ... [2023-02-14 03:06:53,772 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 03:06:53" (1/1) ... [2023-02-14 03:06:53,774 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 03:06:53" (1/1) ... [2023-02-14 03:06:53,778 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 03:06:53" (1/1) ... [2023-02-14 03:06:53,779 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 03:06:53" (1/1) ... [2023-02-14 03:06:53,780 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 03:06:53" (1/1) ... [2023-02-14 03:06:53,781 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-14 03:06:53,782 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-14 03:06:53,782 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-14 03:06:53,783 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-14 03:06:53,784 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 03:06:53" (1/1) ... [2023-02-14 03:06:53,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:53,800 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:06:53,818 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 03:06:53,840 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-02-14 03:06:53,869 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-14 03:06:53,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-14 03:06:53,934 INFO L235 CfgBuilder]: Building ICFG [2023-02-14 03:06:53,937 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-14 03:06:54,019 INFO L276 CfgBuilder]: Performing block encoding [2023-02-14 03:06:54,025 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-14 03:06:54,025 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-14 03:06:54,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 03:06:54 BoogieIcfgContainer [2023-02-14 03:06:54,027 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-14 03:06:54,028 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-02-14 03:06:54,029 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2023-02-14 03:06:54,033 INFO L275 PluginConnector]: BuchiAutomizer initialized [2023-02-14 03:06:54,034 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-14 03:06:54,034 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.02 03:06:53" (1/3) ... [2023-02-14 03:06:54,035 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3222f174 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.02 03:06:54, skipping insertion in model container [2023-02-14 03:06:54,035 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-14 03:06:54,035 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 03:06:53" (2/3) ... [2023-02-14 03:06:54,036 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3222f174 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.02 03:06:54, skipping insertion in model container [2023-02-14 03:06:54,036 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-14 03:06:54,036 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 03:06:54" (3/3) ... [2023-02-14 03:06:54,037 INFO L332 chiAutomizerObserver]: Analyzing ICFG CookSeeZuleger-TACAS2013-Fig8a-modified.c [2023-02-14 03:06:54,100 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-02-14 03:06:54,100 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-02-14 03:06:54,100 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-02-14 03:06:54,100 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-02-14 03:06:54,100 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-02-14 03:06:54,101 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-02-14 03:06:54,101 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-02-14 03:06:54,101 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-02-14 03:06:54,105 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 03:06:54,120 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-14 03:06:54,120 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-14 03:06:54,120 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-14 03:06:54,125 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-14 03:06:54,125 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-14 03:06:54,125 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-02-14 03:06:54,126 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 03:06:54,127 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-14 03:06:54,127 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-14 03:06:54,128 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-14 03:06:54,128 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-14 03:06:54,128 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-14 03:06:54,136 INFO L748 eck$LassoCheckResult]: Stem: 7#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~K~0#1, main_~x~0#1;havoc main_~K~0#1;havoc main_~x~0#1;main_~K~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 6#L18-2true [2023-02-14 03:06:54,136 INFO L750 eck$LassoCheckResult]: Loop: 6#L18-2true assume !!(main_~x~0#1 != main_~K~0#1); 3#L18true assume !(main_~x~0#1 > main_~K~0#1);main_~x~0#1 := 1 + main_~x~0#1; 6#L18-2true [2023-02-14 03:06:54,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 03:06:54,142 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-02-14 03:06:54,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 03:06:54,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366327373] [2023-02-14 03:06:54,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 03:06:54,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 03:06:54,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 03:06:54,226 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 03:06:54,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 03:06:54,249 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 03:06:54,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 03:06:54,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 1 times [2023-02-14 03:06:54,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 03:06:54,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795634171] [2023-02-14 03:06:54,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 03:06:54,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 03:06:54,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 03:06:54,275 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 03:06:54,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 03:06:54,285 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 03:06:54,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 03:06:54,294 INFO L85 PathProgramCache]: Analyzing trace with hash 925800, now seen corresponding path program 1 times [2023-02-14 03:06:54,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 03:06:54,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823829413] [2023-02-14 03:06:54,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 03:06:54,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 03:06:54,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 03:06:54,308 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 03:06:54,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 03:06:54,323 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 03:06:54,433 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 03:06:54,434 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 03:06:54,434 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 03:06:54,434 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 03:06:54,435 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-14 03:06:54,435 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:54,435 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 03:06:54,435 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 03:06:54,435 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig8a-modified.c_Iteration1_Loop [2023-02-14 03:06:54,435 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 03:06:54,436 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 03:06:54,466 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:06:54,486 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:06:54,490 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:06:54,570 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 03:06:54,571 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-14 03:06:54,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:54,573 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:06:54,578 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 03:06:54,579 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-02-14 03:06:54,583 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 03:06:54,583 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 03:06:54,610 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 03:06:54,610 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: [] [2023-02-14 03:06:54,618 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-02-14 03:06:54,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:54,619 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:06:54,621 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 03:06:54,624 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-02-14 03:06:54,626 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 03:06:54,626 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 03:06:54,643 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 03:06:54,643 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: [] [2023-02-14 03:06:54,649 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-02-14 03:06:54,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:54,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:06:54,652 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 03:06:54,657 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 03:06:54,658 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 03:06:54,667 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-02-14 03:06:54,687 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-02-14 03:06:54,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:54,688 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:06:54,689 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 03:06:54,702 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-14 03:06:54,702 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 03:06:54,706 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-02-14 03:06:54,821 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-14 03:06:54,826 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-02-14 03:06:54,827 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 03:06:54,827 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 03:06:54,827 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 03:06:54,827 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 03:06:54,827 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-14 03:06:54,827 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:54,827 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 03:06:54,827 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 03:06:54,827 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig8a-modified.c_Iteration1_Loop [2023-02-14 03:06:54,827 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 03:06:54,827 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 03:06:54,829 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:06:54,835 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:06:54,838 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:06:54,926 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 03:06:54,930 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-14 03:06:54,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:54,932 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:06:54,933 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 03:06:54,936 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-02-14 03:06:54,938 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-14 03:06:54,948 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 03:06:54,949 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 03:06:54,949 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 03:06:54,949 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 03:06:54,954 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-14 03:06:54,954 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-14 03:06:54,977 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 03:06:54,984 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-02-14 03:06:54,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:54,985 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:06:54,987 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 03:06:55,000 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-14 03:06:55,008 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 03:06:55,009 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 03:06:55,009 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 03:06:55,009 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 03:06:55,012 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-14 03:06:55,012 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-14 03:06:55,017 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-02-14 03:06:55,033 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 03:06:55,040 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-02-14 03:06:55,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:55,041 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:06:55,044 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 03:06:55,045 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-02-14 03:06:55,047 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-14 03:06:55,054 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 03:06:55,054 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-14 03:06:55,055 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 03:06:55,055 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 03:06:55,055 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 03:06:55,057 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-14 03:06:55,057 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-14 03:06:55,060 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-14 03:06:55,064 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-02-14 03:06:55,064 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-14 03:06:55,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:55,065 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:06:55,122 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 03:06:55,123 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-02-14 03:06:55,126 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-14 03:06:55,126 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-14 03:06:55,126 INFO L513 LassoAnalysis]: Proved termination. [2023-02-14 03:06:55,126 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~K~0#1) = -1*ULTIMATE.start_main_~x~0#1 + 1*ULTIMATE.start_main_~K~0#1 Supporting invariants [] [2023-02-14 03:06:55,132 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-02-14 03:06:55,136 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-14 03:06:55,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 03:06:55,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 03:06:55,172 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-14 03:06:55,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 03:06:55,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 03:06:55,186 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-14 03:06:55,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 03:06:55,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 03:06:55,233 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-02-14 03:06:55,235 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 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 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 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) [2023-02-14 03:06:55,269 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 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 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 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 24 states and 31 transitions. Complement of second has 8 states. [2023-02-14 03:06:55,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-02-14 03:06:55,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 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) [2023-02-14 03:06:55,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2023-02-14 03:06:55,280 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 2 letters. Loop has 2 letters. [2023-02-14 03:06:55,281 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 03:06:55,281 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 4 letters. Loop has 2 letters. [2023-02-14 03:06:55,281 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 03:06:55,282 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 2 letters. Loop has 4 letters. [2023-02-14 03:06:55,282 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 03:06:55,283 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 31 transitions. [2023-02-14 03:06:55,285 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-14 03:06:55,288 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 8 states and 11 transitions. [2023-02-14 03:06:55,288 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2023-02-14 03:06:55,289 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2023-02-14 03:06:55,289 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2023-02-14 03:06:55,289 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-14 03:06:55,289 INFO L218 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2023-02-14 03:06:55,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2023-02-14 03:06:55,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2023-02-14 03:06:55,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.375) 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) [2023-02-14 03:06:55,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2023-02-14 03:06:55,308 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2023-02-14 03:06:55,308 INFO L428 stractBuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2023-02-14 03:06:55,308 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-02-14 03:06:55,308 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 11 transitions. [2023-02-14 03:06:55,309 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-14 03:06:55,309 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-14 03:06:55,309 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-14 03:06:55,309 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-02-14 03:06:55,309 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-14 03:06:55,310 INFO L748 eck$LassoCheckResult]: Stem: 76#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 77#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~K~0#1, main_~x~0#1;havoc main_~K~0#1;havoc main_~x~0#1;main_~K~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 78#L18-2 assume !!(main_~x~0#1 != main_~K~0#1); 71#L18 assume main_~x~0#1 > main_~K~0#1;main_~x~0#1 := main_~x~0#1 - 1; 72#L18-2 [2023-02-14 03:06:55,310 INFO L750 eck$LassoCheckResult]: Loop: 72#L18-2 assume !!(main_~x~0#1 != main_~K~0#1); 75#L18 assume !(main_~x~0#1 > main_~K~0#1);main_~x~0#1 := 1 + main_~x~0#1; 72#L18-2 [2023-02-14 03:06:55,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 03:06:55,311 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 1 times [2023-02-14 03:06:55,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 03:06:55,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639871835] [2023-02-14 03:06:55,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 03:06:55,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 03:06:55,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 03:06:55,316 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 03:06:55,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 03:06:55,319 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 03:06:55,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 03:06:55,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 2 times [2023-02-14 03:06:55,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 03:06:55,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708721925] [2023-02-14 03:06:55,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 03:06:55,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 03:06:55,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 03:06:55,323 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 03:06:55,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 03:06:55,326 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 03:06:55,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 03:06:55,327 INFO L85 PathProgramCache]: Analyzing trace with hash 889692235, now seen corresponding path program 1 times [2023-02-14 03:06:55,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 03:06:55,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526442848] [2023-02-14 03:06:55,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 03:06:55,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 03:06:55,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 03:06:55,417 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 03:06:55,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 03:06:55,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526442848] [2023-02-14 03:06:55,418 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526442848] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 03:06:55,418 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 03:06:55,418 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-14 03:06:55,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240684804] [2023-02-14 03:06:55,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 03:06:55,437 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 03:06:55,438 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 03:06:55,438 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 03:06:55,438 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 03:06:55,438 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-14 03:06:55,438 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:55,438 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 03:06:55,439 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 03:06:55,439 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig8a-modified.c_Iteration2_Loop [2023-02-14 03:06:55,439 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 03:06:55,439 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 03:06:55,440 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:06:55,443 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:06:55,446 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:06:55,483 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 03:06:55,496 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-14 03:06:55,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:55,497 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:06:55,510 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 03:06:55,540 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 03:06:55,541 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 03:06:55,553 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-02-14 03:06:55,563 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 03:06:55,563 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: [] [2023-02-14 03:06:55,569 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 [2023-02-14 03:06:55,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:55,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:06:55,571 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) [2023-02-14 03:06:55,574 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 [2023-02-14 03:06:55,578 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 03:06:55,578 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 03:06:55,594 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 03:06:55,594 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: [] [2023-02-14 03:06:55,598 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2023-02-14 03:06:55,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:55,598 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:06:55,599 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) [2023-02-14 03:06:55,601 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 [2023-02-14 03:06:55,602 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 03:06:55,602 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 03:06:55,639 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 [2023-02-14 03:06:55,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:55,640 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:06:55,641 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) [2023-02-14 03:06:55,653 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-14 03:06:55,653 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 03:06:55,661 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 [2023-02-14 03:06:55,786 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-14 03:06:55,791 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 [2023-02-14 03:06:55,791 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 03:06:55,791 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 03:06:55,791 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 03:06:55,791 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 03:06:55,791 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-14 03:06:55,791 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:55,791 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 03:06:55,791 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 03:06:55,791 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig8a-modified.c_Iteration2_Loop [2023-02-14 03:06:55,792 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 03:06:55,792 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 03:06:55,793 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:06:55,796 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:06:55,809 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:06:55,859 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 03:06:55,859 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-14 03:06:55,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:55,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:06:55,861 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) [2023-02-14 03:06:55,879 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 [2023-02-14 03:06:55,881 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-14 03:06:55,890 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 03:06:55,890 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 03:06:55,890 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 03:06:55,890 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 03:06:55,898 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-14 03:06:55,898 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-14 03:06:55,912 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 03:06:55,917 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 [2023-02-14 03:06:55,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:55,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:06:55,918 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) [2023-02-14 03:06:55,919 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 [2023-02-14 03:06:55,922 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-14 03:06:55,929 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 03:06:55,929 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-14 03:06:55,929 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 03:06:55,929 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 03:06:55,929 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 03:06:55,930 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-14 03:06:55,930 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-14 03:06:55,940 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-14 03:06:55,944 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-02-14 03:06:55,944 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-14 03:06:55,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:55,944 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:06:55,947 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) [2023-02-14 03:06:55,947 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 [2023-02-14 03:06:55,950 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-14 03:06:55,950 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-14 03:06:55,950 INFO L513 LassoAnalysis]: Proved termination. [2023-02-14 03:06:55,950 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~K~0#1) = -1*ULTIMATE.start_main_~x~0#1 + 1*ULTIMATE.start_main_~K~0#1 Supporting invariants [] [2023-02-14 03:06:55,954 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 [2023-02-14 03:06:55,955 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-14 03:06:55,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 03:06:55,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 03:06:55,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-14 03:06:55,982 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 03:06:55,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 03:06:55,993 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-14 03:06:55,994 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 03:06:56,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 03:06:56,008 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-02-14 03:06:56,008 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 03:06:56,017 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 12 states and 17 transitions. Complement of second has 5 states. [2023-02-14 03:06:56,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-02-14 03:06:56,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 03:06:56,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2023-02-14 03:06:56,019 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 2 letters. [2023-02-14 03:06:56,020 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 03:06:56,020 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 6 letters. Loop has 2 letters. [2023-02-14 03:06:56,020 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 03:06:56,021 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 4 letters. [2023-02-14 03:06:56,021 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 03:06:56,021 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 17 transitions. [2023-02-14 03:06:56,022 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-14 03:06:56,022 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 12 states and 17 transitions. [2023-02-14 03:06:56,022 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2023-02-14 03:06:56,022 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2023-02-14 03:06:56,023 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 17 transitions. [2023-02-14 03:06:56,023 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-14 03:06:56,023 INFO L218 hiAutomatonCegarLoop]: Abstraction has 12 states and 17 transitions. [2023-02-14 03:06:56,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 17 transitions. [2023-02-14 03:06:56,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2023-02-14 03:06:56,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 11 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 03:06:56,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 17 transitions. [2023-02-14 03:06:56,025 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 17 transitions. [2023-02-14 03:06:56,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 03:06:56,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-14 03:06:56,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-02-14 03:06:56,028 INFO L87 Difference]: Start difference. First operand 12 states and 17 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 03:06:56,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 03:06:56,040 INFO L93 Difference]: Finished difference Result 11 states and 13 transitions. [2023-02-14 03:06:56,040 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 13 transitions. [2023-02-14 03:06:56,041 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-14 03:06:56,042 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 10 states and 12 transitions. [2023-02-14 03:06:56,042 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2023-02-14 03:06:56,042 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2023-02-14 03:06:56,042 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 12 transitions. [2023-02-14 03:06:56,042 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-14 03:06:56,042 INFO L218 hiAutomatonCegarLoop]: Abstraction has 10 states and 12 transitions. [2023-02-14 03:06:56,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 12 transitions. [2023-02-14 03:06:56,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 7. [2023-02-14 03:06:56,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 03:06:56,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2023-02-14 03:06:56,044 INFO L240 hiAutomatonCegarLoop]: Abstraction has 7 states and 9 transitions. [2023-02-14 03:06:56,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-14 03:06:56,045 INFO L428 stractBuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2023-02-14 03:06:56,045 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-02-14 03:06:56,045 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. [2023-02-14 03:06:56,045 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-14 03:06:56,046 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-14 03:06:56,046 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-14 03:06:56,046 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-02-14 03:06:56,046 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-14 03:06:56,046 INFO L748 eck$LassoCheckResult]: Stem: 158#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 159#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~K~0#1, main_~x~0#1;havoc main_~K~0#1;havoc main_~x~0#1;main_~K~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 160#L18-2 assume !!(main_~x~0#1 != main_~K~0#1); 154#L18 [2023-02-14 03:06:56,046 INFO L750 eck$LassoCheckResult]: Loop: 154#L18 assume main_~x~0#1 > main_~K~0#1;main_~x~0#1 := main_~x~0#1 - 1; 155#L18-2 assume !!(main_~x~0#1 != main_~K~0#1); 154#L18 [2023-02-14 03:06:56,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 03:06:56,047 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2023-02-14 03:06:56,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 03:06:56,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229802987] [2023-02-14 03:06:56,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 03:06:56,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 03:06:56,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 03:06:56,051 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 03:06:56,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 03:06:56,057 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 03:06:56,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 03:06:56,057 INFO L85 PathProgramCache]: Analyzing trace with hash 1406, now seen corresponding path program 1 times [2023-02-14 03:06:56,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 03:06:56,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750956528] [2023-02-14 03:06:56,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 03:06:56,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 03:06:56,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 03:06:56,063 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 03:06:56,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 03:06:56,066 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 03:06:56,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 03:06:56,067 INFO L85 PathProgramCache]: Analyzing trace with hash 28699749, now seen corresponding path program 2 times [2023-02-14 03:06:56,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 03:06:56,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922730114] [2023-02-14 03:06:56,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 03:06:56,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 03:06:56,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 03:06:56,082 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 03:06:56,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 03:06:56,086 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 03:06:56,107 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 03:06:56,108 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 03:06:56,108 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 03:06:56,108 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 03:06:56,108 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-14 03:06:56,109 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:56,109 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 03:06:56,109 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 03:06:56,109 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig8a-modified.c_Iteration3_Loop [2023-02-14 03:06:56,109 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 03:06:56,109 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 03:06:56,110 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:06:56,117 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:06:56,125 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:06:56,168 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 03:06:56,168 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-14 03:06:56,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:56,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:06:56,170 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) [2023-02-14 03:06:56,184 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 03:06:56,184 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 03:06:56,200 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 [2023-02-14 03:06:56,214 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 03:06:56,214 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-14 03:06:56,223 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 [2023-02-14 03:06:56,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:56,224 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:06:56,225 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 03:06:56,240 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 03:06:56,240 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 03:06:56,252 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-02-14 03:06:56,268 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2023-02-14 03:06:56,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:56,269 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:06:56,270 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 03:06:56,271 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-02-14 03:06:56,273 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-14 03:06:56,273 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 03:06:56,484 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-14 03:06:56,488 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2023-02-14 03:06:56,488 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 03:06:56,488 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 03:06:56,489 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 03:06:56,489 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 03:06:56,489 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-14 03:06:56,489 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:56,489 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 03:06:56,489 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 03:06:56,489 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig8a-modified.c_Iteration3_Loop [2023-02-14 03:06:56,489 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 03:06:56,489 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 03:06:56,490 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:06:56,495 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:06:56,509 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:06:56,553 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2023-02-14 03:06:56,560 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-02-14 03:06:56,608 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 03:06:56,608 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-14 03:06:56,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:56,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:06:56,613 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 03:06:56,619 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-02-14 03:06:56,645 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-14 03:06:56,654 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 03:06:56,654 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 03:06:56,654 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 03:06:56,654 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 03:06:56,656 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-14 03:06:56,656 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-14 03:06:56,670 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 03:06:56,677 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2023-02-14 03:06:56,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:56,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:06:56,679 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 03:06:56,689 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2023-02-14 03:06:56,689 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-14 03:06:56,698 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 03:06:56,698 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-14 03:06:56,698 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 03:06:56,698 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 03:06:56,698 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 03:06:56,701 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-14 03:06:56,701 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-14 03:06:56,715 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-14 03:06:56,720 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-02-14 03:06:56,720 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-14 03:06:56,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:56,720 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:06:56,722 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 03:06:56,724 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-02-14 03:06:56,726 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-14 03:06:56,726 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-14 03:06:56,726 INFO L513 LassoAnalysis]: Proved termination. [2023-02-14 03:06:56,726 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~K~0#1) = 1*ULTIMATE.start_main_~x~0#1 - 1*ULTIMATE.start_main_~K~0#1 Supporting invariants [] [2023-02-14 03:06:56,737 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2023-02-14 03:06:56,738 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-14 03:06:56,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 03:06:56,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 03:06:56,760 INFO L263 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-14 03:06:56,760 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 03:06:56,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 03:06:56,768 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-14 03:06:56,769 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 03:06:56,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 03:06:56,800 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-02-14 03:06:56,800 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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) [2023-02-14 03:06:56,809 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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 12 states and 14 transitions. Complement of second has 5 states. [2023-02-14 03:06:56,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-02-14 03:06:56,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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) [2023-02-14 03:06:56,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2023-02-14 03:06:56,810 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 2 letters. [2023-02-14 03:06:56,811 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 03:06:56,811 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2023-02-14 03:06:56,811 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 03:06:56,811 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 4 letters. [2023-02-14 03:06:56,811 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 03:06:56,811 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 14 transitions. [2023-02-14 03:06:56,812 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-14 03:06:56,812 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 8 states and 9 transitions. [2023-02-14 03:06:56,812 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2023-02-14 03:06:56,813 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2023-02-14 03:06:56,813 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 9 transitions. [2023-02-14 03:06:56,813 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-14 03:06:56,813 INFO L218 hiAutomatonCegarLoop]: Abstraction has 8 states and 9 transitions. [2023-02-14 03:06:56,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 9 transitions. [2023-02-14 03:06:56,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2023-02-14 03:06:56,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 03:06:56,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 8 transitions. [2023-02-14 03:06:56,814 INFO L240 hiAutomatonCegarLoop]: Abstraction has 7 states and 8 transitions. [2023-02-14 03:06:56,814 INFO L428 stractBuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2023-02-14 03:06:56,815 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-02-14 03:06:56,815 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 8 transitions. [2023-02-14 03:06:56,815 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-14 03:06:56,815 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-14 03:06:56,815 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-14 03:06:56,816 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1] [2023-02-14 03:06:56,816 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-14 03:06:56,816 INFO L748 eck$LassoCheckResult]: Stem: 213#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 214#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~K~0#1, main_~x~0#1;havoc main_~K~0#1;havoc main_~x~0#1;main_~K~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 212#L18-2 assume !!(main_~x~0#1 != main_~K~0#1); 210#L18 assume !(main_~x~0#1 > main_~K~0#1);main_~x~0#1 := 1 + main_~x~0#1; 211#L18-2 assume !!(main_~x~0#1 != main_~K~0#1); 208#L18 [2023-02-14 03:06:56,816 INFO L750 eck$LassoCheckResult]: Loop: 208#L18 assume main_~x~0#1 > main_~K~0#1;main_~x~0#1 := main_~x~0#1 - 1; 209#L18-2 assume !!(main_~x~0#1 != main_~K~0#1); 208#L18 [2023-02-14 03:06:56,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 03:06:56,817 INFO L85 PathProgramCache]: Analyzing trace with hash 28699811, now seen corresponding path program 2 times [2023-02-14 03:06:56,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 03:06:56,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792159122] [2023-02-14 03:06:56,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 03:06:56,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 03:06:56,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 03:06:56,822 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 03:06:56,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 03:06:56,825 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 03:06:56,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 03:06:56,826 INFO L85 PathProgramCache]: Analyzing trace with hash 1406, now seen corresponding path program 2 times [2023-02-14 03:06:56,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 03:06:56,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935217296] [2023-02-14 03:06:56,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 03:06:56,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 03:06:56,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 03:06:56,830 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 03:06:56,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 03:06:56,833 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 03:06:56,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 03:06:56,834 INFO L85 PathProgramCache]: Analyzing trace with hash 1810715040, now seen corresponding path program 2 times [2023-02-14 03:06:56,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 03:06:56,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629163372] [2023-02-14 03:06:56,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 03:06:56,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 03:06:56,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 03:06:56,881 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 03:06:56,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 03:06:56,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629163372] [2023-02-14 03:06:56,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629163372] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 03:06:56,882 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 03:06:56,882 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-14 03:06:56,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099299851] [2023-02-14 03:06:56,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 03:06:56,903 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 03:06:56,903 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 03:06:56,903 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 03:06:56,903 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 03:06:56,903 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-14 03:06:56,903 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:56,903 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 03:06:56,903 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 03:06:56,903 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig8a-modified.c_Iteration4_Loop [2023-02-14 03:06:56,903 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 03:06:56,903 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 03:06:56,905 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:06:56,908 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:06:56,910 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:06:56,975 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 03:06:56,975 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-14 03:06:56,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:56,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:06:56,977 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 03:06:56,993 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2023-02-14 03:06:56,994 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 03:06:56,995 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 03:06:57,007 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 03:06:57,008 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-14 03:06:57,011 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2023-02-14 03:06:57,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:57,012 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:06:57,014 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 03:06:57,015 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2023-02-14 03:06:57,016 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 03:06:57,016 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 03:06:57,028 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 03:06:57,029 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_7=0} Honda state: {v_rep~unnamed0~0~false_7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-14 03:06:57,034 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2023-02-14 03:06:57,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:57,034 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:06:57,037 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 03:06:57,038 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2023-02-14 03:06:57,038 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 03:06:57,038 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 03:06:57,049 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2023-02-14 03:06:57,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:57,050 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:06:57,051 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 03:06:57,053 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2023-02-14 03:06:57,054 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-14 03:06:57,054 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 03:06:57,269 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-14 03:06:57,274 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2023-02-14 03:06:57,274 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 03:06:57,274 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 03:06:57,274 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 03:06:57,274 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 03:06:57,274 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-14 03:06:57,274 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:57,274 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 03:06:57,274 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 03:06:57,274 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig8a-modified.c_Iteration4_Loop [2023-02-14 03:06:57,274 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 03:06:57,274 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 03:06:57,275 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:06:57,278 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:06:57,293 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:06:57,333 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 03:06:57,333 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-14 03:06:57,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:57,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:06:57,337 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 03:06:57,340 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2023-02-14 03:06:57,342 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-14 03:06:57,350 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 03:06:57,351 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 03:06:57,351 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 03:06:57,351 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 03:06:57,353 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-14 03:06:57,353 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-14 03:06:57,369 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 03:06:57,374 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2023-02-14 03:06:57,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:57,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:06:57,376 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 03:06:57,381 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-14 03:06:57,389 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 03:06:57,390 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-14 03:06:57,390 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 03:06:57,390 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 03:06:57,390 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 03:06:57,391 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-14 03:06:57,391 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-14 03:06:57,393 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2023-02-14 03:06:57,409 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-14 03:06:57,411 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-14 03:06:57,411 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-14 03:06:57,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:57,412 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:06:57,413 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 03:06:57,416 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2023-02-14 03:06:57,417 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-14 03:06:57,417 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-14 03:06:57,417 INFO L513 LassoAnalysis]: Proved termination. [2023-02-14 03:06:57,417 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~K~0#1) = 1*ULTIMATE.start_main_~x~0#1 - 1*ULTIMATE.start_main_~K~0#1 Supporting invariants [] [2023-02-14 03:06:57,424 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2023-02-14 03:06:57,425 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-14 03:06:57,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 03:06:57,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 03:06:57,443 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-14 03:06:57,443 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 03:06:57,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 03:06:57,455 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-14 03:06:57,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 03:06:57,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 03:06:57,478 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-02-14 03:06:57,478 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 3 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) [2023-02-14 03:06:57,484 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 3. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) Result 8 states and 9 transitions. Complement of second has 3 states. [2023-02-14 03:06:57,485 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 [2023-02-14 03:06:57,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) [2023-02-14 03:06:57,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 3 transitions. [2023-02-14 03:06:57,487 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 3 transitions. Stem has 5 letters. Loop has 2 letters. [2023-02-14 03:06:57,488 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 03:06:57,488 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-02-14 03:06:57,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 03:06:57,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 03:06:57,509 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-14 03:06:57,510 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 03:06:57,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 03:06:57,520 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-14 03:06:57,520 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 03:06:57,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 03:06:57,537 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2023-02-14 03:06:57,537 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 3 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) [2023-02-14 03:06:57,546 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 3. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) Result 8 states and 9 transitions. Complement of second has 3 states. [2023-02-14 03:06:57,547 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 [2023-02-14 03:06:57,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) [2023-02-14 03:06:57,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 3 transitions. [2023-02-14 03:06:57,549 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 3 transitions. Stem has 5 letters. Loop has 2 letters. [2023-02-14 03:06:57,549 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 03:06:57,549 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-02-14 03:06:57,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 03:06:57,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 03:06:57,567 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-14 03:06:57,567 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 03:06:57,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 03:06:57,579 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-14 03:06:57,580 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 03:06:57,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 03:06:57,597 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-02-14 03:06:57,598 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 3 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) [2023-02-14 03:06:57,613 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 3. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) Result 9 states and 10 transitions. Complement of second has 4 states. [2023-02-14 03:06:57,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-02-14 03:06:57,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) [2023-02-14 03:06:57,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2023-02-14 03:06:57,616 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 2 letters. [2023-02-14 03:06:57,617 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 03:06:57,617 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 7 letters. Loop has 2 letters. [2023-02-14 03:06:57,617 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 03:06:57,617 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 4 letters. [2023-02-14 03:06:57,618 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 03:06:57,618 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 10 transitions. [2023-02-14 03:06:57,622 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-14 03:06:57,623 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 0 states and 0 transitions. [2023-02-14 03:06:57,623 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-02-14 03:06:57,623 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-02-14 03:06:57,623 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-02-14 03:06:57,623 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-14 03:06:57,623 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-14 03:06:57,623 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-14 03:06:57,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 03:06:57,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-14 03:06:57,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-02-14 03:06:57,626 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) 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) [2023-02-14 03:06:57,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 03:06:57,626 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2023-02-14 03:06:57,626 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2023-02-14 03:06:57,626 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-14 03:06:57,626 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2023-02-14 03:06:57,627 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-02-14 03:06:57,627 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-02-14 03:06:57,627 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-02-14 03:06:57,627 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-14 03:06:57,627 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-14 03:06:57,627 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-14 03:06:57,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-02-14 03:06:57,629 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-14 03:06:57,629 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-02-14 03:06:57,629 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-02-14 03:06:57,629 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-14 03:06:57,629 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-02-14 03:06:57,643 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 14.02 03:06:57 BoogieIcfgContainer [2023-02-14 03:06:57,643 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-02-14 03:06:57,643 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-14 03:06:57,644 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-14 03:06:57,644 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-14 03:06:57,644 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 03:06:54" (3/4) ... [2023-02-14 03:06:57,647 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-02-14 03:06:57,647 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-14 03:06:57,648 INFO L158 Benchmark]: Toolchain (without parser) took 4123.74ms. Allocated memory is still 165.7MB. Free memory was 130.3MB in the beginning and 87.0MB in the end (delta: 43.3MB). Peak memory consumption was 45.2MB. Max. memory is 16.1GB. [2023-02-14 03:06:57,648 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 117.4MB. Free memory is still 63.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-14 03:06:57,648 INFO L158 Benchmark]: CACSL2BoogieTranslator took 204.78ms. Allocated memory is still 165.7MB. Free memory was 129.9MB in the beginning and 121.0MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-14 03:06:57,649 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.00ms. Allocated memory is still 165.7MB. Free memory was 121.0MB in the beginning and 119.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-14 03:06:57,649 INFO L158 Benchmark]: Boogie Preprocessor took 18.54ms. Allocated memory is still 165.7MB. Free memory was 119.7MB in the beginning and 118.8MB in the end (delta: 840.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-14 03:06:57,649 INFO L158 Benchmark]: RCFGBuilder took 245.11ms. Allocated memory is still 165.7MB. Free memory was 118.6MB in the beginning and 110.6MB in the end (delta: 8.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-14 03:06:57,650 INFO L158 Benchmark]: BuchiAutomizer took 3614.71ms. Allocated memory is still 165.7MB. Free memory was 110.2MB in the beginning and 88.1MB in the end (delta: 22.1MB). Peak memory consumption was 24.2MB. Max. memory is 16.1GB. [2023-02-14 03:06:57,650 INFO L158 Benchmark]: Witness Printer took 3.87ms. Allocated memory is still 165.7MB. Free memory is still 87.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-14 03:06:57,652 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 117.4MB. Free memory is still 63.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 204.78ms. Allocated memory is still 165.7MB. Free memory was 129.9MB in the beginning and 121.0MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.00ms. Allocated memory is still 165.7MB. Free memory was 121.0MB in the beginning and 119.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.54ms. Allocated memory is still 165.7MB. Free memory was 119.7MB in the beginning and 118.8MB in the end (delta: 840.4kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 245.11ms. Allocated memory is still 165.7MB. Free memory was 118.6MB in the beginning and 110.6MB in the end (delta: 8.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 3614.71ms. Allocated memory is still 165.7MB. Free memory was 110.2MB in the beginning and 88.1MB in the end (delta: 22.1MB). Peak memory consumption was 24.2MB. Max. memory is 16.1GB. * Witness Printer took 3.87ms. Allocated memory is still 165.7MB. Free memory is still 87.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (2 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function K + -1 * x and consists of 5 locations. One deterministic module has affine ranking function K + -1 * x and consists of 3 locations. One deterministic module has affine ranking function x + -1 * K and consists of 3 locations. One nondeterministic module has affine ranking function x + -1 * K and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.5s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 2.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 30 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 24 mSDsluCounter, 36 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 40 IncrementalHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 29 mSDtfsCounter, 40 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT2 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital14 mio100 ax182 hnf100 lsp54 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq169 hnf95 smp68 dnf100 smp100 tf112 neg94 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 46ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 7 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.1s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-02-14 03:06:57,665 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2023-02-14 03:06:57,863 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2023-02-14 03:06:58,067 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE