./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 574ddb4e 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-Fig1.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 626f3da6fd18561761a79d5d72b6e4952ec90284e3abc32807b89f761ebfb898 --- Real Ultimate output --- This is Ultimate 0.2.2-?-574ddb4 [2023-02-17 09:39:58,999 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-17 09:39:59,000 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-17 09:39:59,043 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-17 09:39:59,043 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-17 09:39:59,046 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-17 09:39:59,047 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-17 09:39:59,050 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-17 09:39:59,051 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-17 09:39:59,055 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-17 09:39:59,056 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-17 09:39:59,058 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-17 09:39:59,058 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-17 09:39:59,061 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-17 09:39:59,062 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-17 09:39:59,063 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-17 09:39:59,064 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-17 09:39:59,065 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-17 09:39:59,066 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-17 09:39:59,072 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-17 09:39:59,073 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-17 09:39:59,074 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-17 09:39:59,075 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-17 09:39:59,076 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-17 09:39:59,083 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-17 09:39:59,083 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-17 09:39:59,083 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-17 09:39:59,085 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-17 09:39:59,085 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-17 09:39:59,086 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-17 09:39:59,086 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-17 09:39:59,087 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-17 09:39:59,089 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-17 09:39:59,089 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-17 09:39:59,091 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-17 09:39:59,091 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-17 09:39:59,091 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-17 09:39:59,092 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-17 09:39:59,092 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-17 09:39:59,093 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-17 09:39:59,094 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-17 09:39:59,095 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-02-17 09:39:59,116 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-17 09:39:59,117 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-17 09:39:59,117 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-17 09:39:59,117 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-17 09:39:59,118 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-17 09:39:59,118 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-17 09:39:59,118 INFO L138 SettingsManager]: * Use SBE=true [2023-02-17 09:39:59,118 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-02-17 09:39:59,119 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-02-17 09:39:59,119 INFO L138 SettingsManager]: * Use old map elimination=false [2023-02-17 09:39:59,119 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2023-02-17 09:39:59,119 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2023-02-17 09:39:59,119 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-02-17 09:39:59,119 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-17 09:39:59,120 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-17 09:39:59,120 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-17 09:39:59,120 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-17 09:39:59,120 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-02-17 09:39:59,120 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-02-17 09:39:59,120 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-02-17 09:39:59,121 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-17 09:39:59,121 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-02-17 09:39:59,121 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-17 09:39:59,121 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-02-17 09:39:59,121 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-17 09:39:59,122 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-17 09:39:59,122 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-17 09:39:59,122 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-17 09:39:59,123 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-02-17 09:39:59,123 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 626f3da6fd18561761a79d5d72b6e4952ec90284e3abc32807b89f761ebfb898 [2023-02-17 09:39:59,364 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-17 09:39:59,389 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-17 09:39:59,392 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-17 09:39:59,393 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-17 09:39:59,394 INFO L275 PluginConnector]: CDTParser initialized [2023-02-17 09:39:59,395 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig1.c [2023-02-17 09:40:00,506 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-17 09:40:00,635 INFO L351 CDTParser]: Found 1 translation units. [2023-02-17 09:40:00,636 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig1.c [2023-02-17 09:40:00,647 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19dd1e5b8/6bdac1fd76a14411a3a501e4373abaf1/FLAGf04a990cf [2023-02-17 09:40:00,658 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19dd1e5b8/6bdac1fd76a14411a3a501e4373abaf1 [2023-02-17 09:40:00,660 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-17 09:40:00,661 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-17 09:40:00,662 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-17 09:40:00,662 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-17 09:40:00,665 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-17 09:40:00,665 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.02 09:40:00" (1/1) ... [2023-02-17 09:40:00,666 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53de4e44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:40:00, skipping insertion in model container [2023-02-17 09:40:00,666 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.02 09:40:00" (1/1) ... [2023-02-17 09:40:00,673 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-17 09:40:00,682 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-17 09:40:00,777 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-17 09:40:00,783 INFO L203 MainTranslator]: Completed pre-run [2023-02-17 09:40:00,796 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-17 09:40:00,805 INFO L208 MainTranslator]: Completed translation [2023-02-17 09:40:00,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:40:00 WrapperNode [2023-02-17 09:40:00,806 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-17 09:40:00,807 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-17 09:40:00,808 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-17 09:40:00,808 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-17 09:40:00,813 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:40:00" (1/1) ... [2023-02-17 09:40:00,819 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:40:00" (1/1) ... [2023-02-17 09:40:00,832 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2023-02-17 09:40:00,833 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-17 09:40:00,833 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-17 09:40:00,834 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-17 09:40:00,834 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-17 09:40:00,840 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:40:00" (1/1) ... [2023-02-17 09:40:00,840 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:40:00" (1/1) ... [2023-02-17 09:40:00,841 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:40:00" (1/1) ... [2023-02-17 09:40:00,842 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:40:00" (1/1) ... [2023-02-17 09:40:00,844 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:40:00" (1/1) ... [2023-02-17 09:40:00,848 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:40:00" (1/1) ... [2023-02-17 09:40:00,849 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:40:00" (1/1) ... [2023-02-17 09:40:00,849 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:40:00" (1/1) ... [2023-02-17 09:40:00,850 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-17 09:40:00,852 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-17 09:40:00,852 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-17 09:40:00,853 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-17 09:40:00,854 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:40:00" (1/1) ... [2023-02-17 09:40:00,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:40:00,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:40:00,886 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 09:40:00,913 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-02-17 09:40:00,927 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-17 09:40:00,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-17 09:40:00,989 INFO L235 CfgBuilder]: Building ICFG [2023-02-17 09:40:00,992 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-17 09:40:01,050 INFO L276 CfgBuilder]: Performing block encoding [2023-02-17 09:40:01,054 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-17 09:40:01,055 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-17 09:40:01,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 09:40:01 BoogieIcfgContainer [2023-02-17 09:40:01,057 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-17 09:40:01,057 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-02-17 09:40:01,058 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2023-02-17 09:40:01,061 INFO L275 PluginConnector]: BuchiAutomizer initialized [2023-02-17 09:40:01,061 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-17 09:40:01,061 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 17.02 09:40:00" (1/3) ... [2023-02-17 09:40:01,062 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3d17df3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.02 09:40:01, skipping insertion in model container [2023-02-17 09:40:01,062 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-17 09:40:01,063 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:40:00" (2/3) ... [2023-02-17 09:40:01,063 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3d17df3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.02 09:40:01, skipping insertion in model container [2023-02-17 09:40:01,063 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-17 09:40:01,063 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 09:40:01" (3/3) ... [2023-02-17 09:40:01,064 INFO L332 chiAutomizerObserver]: Analyzing ICFG CookSeeZuleger-TACAS2013-Fig1.c [2023-02-17 09:40:01,106 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-02-17 09:40:01,107 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-02-17 09:40:01,107 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-02-17 09:40:01,107 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-02-17 09:40:01,107 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-02-17 09:40:01,107 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-02-17 09:40:01,107 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-02-17 09:40:01,108 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-02-17 09:40:01,111 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) [2023-02-17 09:40:01,121 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-17 09:40:01,122 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-17 09:40:01,122 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-17 09:40:01,125 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-17 09:40:01,125 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-17 09:40:01,125 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-02-17 09:40:01,126 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) [2023-02-17 09:40:01,126 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-17 09:40:01,126 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-17 09:40:01,126 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-17 09:40:01,127 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-17 09:40:01,127 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-17 09:40:01,132 INFO L748 eck$LassoCheckResult]: Stem: 6#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 2#L19-2true [2023-02-17 09:40:01,132 INFO L750 eck$LassoCheckResult]: Loop: 2#L19-2true assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 8#L19true assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1;main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~y~0#1 := main_~y~0#1 - 1; 2#L19-2true [2023-02-17 09:40:01,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:40:01,137 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-02-17 09:40:01,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:40:01,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406362488] [2023-02-17 09:40:01,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:40:01,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:40:01,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 09:40:01,204 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-17 09:40:01,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 09:40:01,224 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-17 09:40:01,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:40:01,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 1 times [2023-02-17 09:40:01,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:40:01,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484123930] [2023-02-17 09:40:01,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:40:01,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:40:01,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 09:40:01,247 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-17 09:40:01,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 09:40:01,254 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-17 09:40:01,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:40:01,257 INFO L85 PathProgramCache]: Analyzing trace with hash 925800, now seen corresponding path program 1 times [2023-02-17 09:40:01,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:40:01,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693391125] [2023-02-17 09:40:01,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:40:01,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:40:01,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 09:40:01,264 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-17 09:40:01,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 09:40:01,271 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-17 09:40:01,292 INFO L210 LassoAnalysis]: Preferences: [2023-02-17 09:40:01,293 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-17 09:40:01,293 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-17 09:40:01,293 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-17 09:40:01,293 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-17 09:40:01,294 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:40:01,294 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-17 09:40:01,294 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-17 09:40:01,294 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig1.c_Iteration1_Loop [2023-02-17 09:40:01,294 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-17 09:40:01,294 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-17 09:40:01,309 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 09:40:01,316 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 09:40:01,318 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 09:40:01,335 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 09:40:01,337 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 09:40:01,349 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-17 09:40:01,349 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-17 09:40:01,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:40:01,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:40:01,352 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 09:40:01,354 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-02-17 09:40:01,356 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-17 09:40:01,356 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-17 09:40:01,373 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-17 09:40:01,373 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: [] [2023-02-17 09:40:01,377 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2023-02-17 09:40:01,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:40:01,378 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:40:01,379 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 09:40:01,381 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-02-17 09:40:01,382 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-17 09:40:01,382 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-17 09:40:01,396 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-17 09:40:01,396 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: [] [2023-02-17 09:40:01,409 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-02-17 09:40:01,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:40:01,410 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:40:01,423 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 09:40:01,430 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-17 09:40:01,430 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-17 09:40:01,449 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-02-17 09:40:01,457 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-17 09:40:01,457 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2#1=0} Honda state: {ULTIMATE.start_main_#t~nondet2#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-17 09:40:01,463 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-02-17 09:40:01,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:40:01,464 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:40:01,465 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 09:40:01,468 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-02-17 09:40:01,469 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-17 09:40:01,469 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-17 09:40:01,497 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-17 09:40:01,498 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=4, ULTIMATE.start_main_#t~nondet3#1=4} Honda state: {ULTIMATE.start_main_~x~0#1=4, ULTIMATE.start_main_#t~nondet3#1=4} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-17 09:40:01,505 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-02-17 09:40:01,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:40:01,506 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:40:01,515 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 09:40:01,518 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-02-17 09:40:01,519 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-17 09:40:01,519 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-17 09:40:01,536 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-02-17 09:40:01,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:40:01,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:40:01,538 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 09:40:01,548 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-02-17 09:40:01,549 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-17 09:40:01,549 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-17 09:40:01,567 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-17 09:40:01,570 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2023-02-17 09:40:01,570 INFO L210 LassoAnalysis]: Preferences: [2023-02-17 09:40:01,570 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-17 09:40:01,571 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-17 09:40:01,571 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-17 09:40:01,571 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-17 09:40:01,571 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:40:01,571 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-17 09:40:01,571 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-17 09:40:01,571 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig1.c_Iteration1_Loop [2023-02-17 09:40:01,571 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-17 09:40:01,571 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-17 09:40:01,573 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 09:40:01,576 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 09:40:01,577 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 09:40:01,578 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 09:40:01,580 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 09:40:01,598 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-17 09:40:01,619 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-17 09:40:01,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:40:01,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:40:01,622 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 09:40:01,629 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-17 09:40:01,633 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-02-17 09:40:01,637 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-17 09:40:01,638 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-17 09:40:01,638 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-17 09:40:01,638 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-17 09:40:01,642 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-17 09:40:01,642 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-17 09:40:01,662 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-17 09:40:01,668 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-02-17 09:40:01,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:40:01,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:40:01,670 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 09:40:01,677 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-02-17 09:40:01,706 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-17 09:40:01,713 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-17 09:40:01,713 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-17 09:40:01,713 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-17 09:40:01,713 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-17 09:40:01,716 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-17 09:40:01,716 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-17 09:40:01,727 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-17 09:40:01,730 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-02-17 09:40:01,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:40:01,731 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:40:01,732 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 09:40:01,734 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-02-17 09:40:01,735 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-17 09:40:01,741 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-17 09:40:01,741 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-17 09:40:01,742 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-17 09:40:01,742 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-17 09:40:01,742 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-17 09:40:01,743 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-17 09:40:01,743 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-17 09:40:01,745 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-17 09:40:01,748 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2023-02-17 09:40:01,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:40:01,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:40:01,749 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) [2023-02-17 09:40:01,751 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 [2023-02-17 09:40:01,753 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-17 09:40:01,759 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-17 09:40:01,760 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-17 09:40:01,760 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-17 09:40:01,760 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-17 09:40:01,760 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-17 09:40:01,761 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-17 09:40:01,761 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-17 09:40:01,768 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-17 09:40:01,772 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-17 09:40:01,773 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-17 09:40:01,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:40:01,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:40:01,775 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) [2023-02-17 09:40:01,777 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 [2023-02-17 09:40:01,778 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-17 09:40:01,778 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-17 09:40:01,778 INFO L513 LassoAnalysis]: Proved termination. [2023-02-17 09:40:01,778 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2023-02-17 09:40:01,784 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-02-17 09:40:01,786 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-17 09:40:01,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:40:01,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:40:01,813 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-17 09:40:01,816 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 09:40:01,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:40:01,831 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-17 09:40:01,831 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 09:40:01,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:40:01,883 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 [2023-02-17 09:40:01,884 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) [2023-02-17 09:40:01,935 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 29 states and 36 transitions. Complement of second has 7 states. [2023-02-17 09:40:01,937 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 [2023-02-17 09:40:01,947 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) [2023-02-17 09:40:01,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 19 transitions. [2023-02-17 09:40:01,949 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 2 letters. Loop has 2 letters. [2023-02-17 09:40:01,950 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-17 09:40:01,950 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 4 letters. Loop has 2 letters. [2023-02-17 09:40:01,950 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-17 09:40:01,950 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 2 letters. Loop has 4 letters. [2023-02-17 09:40:01,950 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-17 09:40:01,951 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 36 transitions. [2023-02-17 09:40:01,956 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-17 09:40:01,960 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 9 states and 12 transitions. [2023-02-17 09:40:01,961 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2023-02-17 09:40:01,964 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2023-02-17 09:40:01,964 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 12 transitions. [2023-02-17 09:40:01,965 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-17 09:40:01,965 INFO L218 hiAutomatonCegarLoop]: Abstraction has 9 states and 12 transitions. [2023-02-17 09:40:01,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 12 transitions. [2023-02-17 09:40:01,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2023-02-17 09:40:01,987 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) [2023-02-17 09:40:01,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2023-02-17 09:40:01,988 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2023-02-17 09:40:01,994 INFO L428 stractBuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2023-02-17 09:40:01,995 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-02-17 09:40:01,995 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 11 transitions. [2023-02-17 09:40:01,996 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-17 09:40:01,996 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-17 09:40:01,996 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-17 09:40:01,997 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-02-17 09:40:01,997 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-17 09:40:01,997 INFO L748 eck$LassoCheckResult]: Stem: 79#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 80#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_#t~nondet2#1, main_#t~nondet3#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 82#L19-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 76#L19 [2023-02-17 09:40:01,997 INFO L750 eck$LassoCheckResult]: Loop: 76#L19 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - 1; 75#L19-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 76#L19 [2023-02-17 09:40:02,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:40:02,002 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2023-02-17 09:40:02,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:40:02,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409278943] [2023-02-17 09:40:02,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:40:02,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:40:02,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 09:40:02,009 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-17 09:40:02,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 09:40:02,015 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-17 09:40:02,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:40:02,016 INFO L85 PathProgramCache]: Analyzing trace with hash 1406, now seen corresponding path program 1 times [2023-02-17 09:40:02,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:40:02,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340318689] [2023-02-17 09:40:02,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:40:02,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:40:02,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 09:40:02,027 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-17 09:40:02,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 09:40:02,034 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-17 09:40:02,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:40:02,034 INFO L85 PathProgramCache]: Analyzing trace with hash 28699749, now seen corresponding path program 1 times [2023-02-17 09:40:02,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:40:02,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704735607] [2023-02-17 09:40:02,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:40:02,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:40:02,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 09:40:02,050 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-17 09:40:02,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 09:40:02,054 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-17 09:40:02,056 INFO L210 LassoAnalysis]: Preferences: [2023-02-17 09:40:02,056 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-17 09:40:02,056 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-17 09:40:02,056 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-17 09:40:02,056 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-17 09:40:02,056 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:40:02,056 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-17 09:40:02,056 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-17 09:40:02,056 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig1.c_Iteration2_Loop [2023-02-17 09:40:02,056 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-17 09:40:02,056 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-17 09:40:02,058 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 09:40:02,059 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 09:40:02,060 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 09:40:02,062 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 09:40:02,063 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 09:40:02,068 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-17 09:40:02,068 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-17 09:40:02,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:40:02,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:40:02,075 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) [2023-02-17 09:40:02,076 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 [2023-02-17 09:40:02,082 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-17 09:40:02,082 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-17 09:40:02,097 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-17 09:40:02,098 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: [] [2023-02-17 09:40:02,103 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 [2023-02-17 09:40:02,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:40:02,103 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:40:02,104 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) [2023-02-17 09:40:02,107 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 [2023-02-17 09:40:02,109 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-17 09:40:02,109 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-17 09:40:02,125 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-17 09:40:02,125 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: [] [2023-02-17 09:40:02,132 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 [2023-02-17 09:40:02,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:40:02,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:40:02,134 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) [2023-02-17 09:40:02,136 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 [2023-02-17 09:40:02,137 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-17 09:40:02,137 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-17 09:40:02,155 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-17 09:40:02,155 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2#1=4} Honda state: {ULTIMATE.start_main_#t~nondet2#1=4} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-17 09:40:02,158 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 [2023-02-17 09:40:02,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:40:02,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:40:02,159 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) [2023-02-17 09:40:02,162 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 [2023-02-17 09:40:02,163 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-17 09:40:02,163 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-17 09:40:02,176 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-17 09:40:02,176 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0#1=1} Honda state: {ULTIMATE.start_main_~y~0#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-17 09:40:02,188 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2023-02-17 09:40:02,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:40:02,189 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:40:02,190 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) [2023-02-17 09:40:02,193 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 [2023-02-17 09:40:02,194 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-17 09:40:02,194 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-17 09:40:02,222 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 [2023-02-17 09:40:02,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:40:02,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:40:02,225 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) [2023-02-17 09:40:02,236 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-17 09:40:02,236 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-17 09:40:02,261 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 [2023-02-17 09:40:02,286 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-17 09:40:02,289 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 [2023-02-17 09:40:02,289 INFO L210 LassoAnalysis]: Preferences: [2023-02-17 09:40:02,289 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-17 09:40:02,289 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-17 09:40:02,290 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-17 09:40:02,290 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-17 09:40:02,290 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:40:02,290 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-17 09:40:02,290 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-17 09:40:02,290 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig1.c_Iteration2_Loop [2023-02-17 09:40:02,290 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-17 09:40:02,290 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-17 09:40:02,291 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 09:40:02,295 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 09:40:02,296 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 09:40:02,297 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 09:40:02,298 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 09:40:02,301 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-17 09:40:02,301 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-17 09:40:02,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:40:02,301 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:40:02,302 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) [2023-02-17 09:40:02,307 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 [2023-02-17 09:40:02,308 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-17 09:40:02,314 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-17 09:40:02,315 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-17 09:40:02,315 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-17 09:40:02,315 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-17 09:40:02,317 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-17 09:40:02,318 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-17 09:40:02,338 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-17 09:40:02,344 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2023-02-17 09:40:02,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:40:02,344 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:40:02,345 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) [2023-02-17 09:40:02,352 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 [2023-02-17 09:40:02,352 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-17 09:40:02,359 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-17 09:40:02,359 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-17 09:40:02,359 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-17 09:40:02,359 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-02-17 09:40:02,359 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-17 09:40:02,360 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2023-02-17 09:40:02,360 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-17 09:40:02,377 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-17 09:40:02,380 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 [2023-02-17 09:40:02,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:40:02,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:40:02,382 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) [2023-02-17 09:40:02,383 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 [2023-02-17 09:40:02,385 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-17 09:40:02,392 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-17 09:40:02,392 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-17 09:40:02,392 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-17 09:40:02,392 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-17 09:40:02,394 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-17 09:40:02,394 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-17 09:40:02,404 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-17 09:40:02,408 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 [2023-02-17 09:40:02,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:40:02,408 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:40:02,409 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) [2023-02-17 09:40:02,411 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 [2023-02-17 09:40:02,413 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-17 09:40:02,419 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-17 09:40:02,419 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-17 09:40:02,419 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-17 09:40:02,419 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-17 09:40:02,420 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-17 09:40:02,420 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-17 09:40:02,420 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-17 09:40:02,428 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-17 09:40:02,431 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2023-02-17 09:40:02,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:40:02,432 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:40:02,432 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) [2023-02-17 09:40:02,433 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 [2023-02-17 09:40:02,435 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-17 09:40:02,442 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-17 09:40:02,442 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-17 09:40:02,442 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-17 09:40:02,442 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-17 09:40:02,442 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-17 09:40:02,443 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-17 09:40:02,443 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-17 09:40:02,473 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-17 09:40:02,475 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-17 09:40:02,476 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-17 09:40:02,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:40:02,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:40:02,485 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) [2023-02-17 09:40:02,486 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-17 09:40:02,486 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-17 09:40:02,486 INFO L513 LassoAnalysis]: Proved termination. [2023-02-17 09:40:02,486 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2023-02-17 09:40:02,489 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 [2023-02-17 09:40:02,493 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 [2023-02-17 09:40:02,494 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-17 09:40:02,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:40:02,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:40:02,512 INFO L263 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-17 09:40:02,512 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 09:40:02,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:40:02,517 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-17 09:40:02,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 09:40:02,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:40:02,542 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 [2023-02-17 09:40:02,542 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 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) [2023-02-17 09:40:02,559 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 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 15 states and 20 transitions. Complement of second has 5 states. [2023-02-17 09:40:02,559 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 [2023-02-17 09:40:02,560 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) [2023-02-17 09:40:02,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2023-02-17 09:40:02,560 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 3 letters. Loop has 2 letters. [2023-02-17 09:40:02,561 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-17 09:40:02,561 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 5 letters. Loop has 2 letters. [2023-02-17 09:40:02,561 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-17 09:40:02,561 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 3 letters. Loop has 4 letters. [2023-02-17 09:40:02,561 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-17 09:40:02,561 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 20 transitions. [2023-02-17 09:40:02,563 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-17 09:40:02,564 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 10 states and 13 transitions. [2023-02-17 09:40:02,564 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2023-02-17 09:40:02,564 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2023-02-17 09:40:02,565 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 13 transitions. [2023-02-17 09:40:02,565 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-17 09:40:02,565 INFO L218 hiAutomatonCegarLoop]: Abstraction has 10 states and 13 transitions. [2023-02-17 09:40:02,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 13 transitions. [2023-02-17 09:40:02,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 8. [2023-02-17 09:40:02,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.25) 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) [2023-02-17 09:40:02,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 10 transitions. [2023-02-17 09:40:02,567 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 10 transitions. [2023-02-17 09:40:02,567 INFO L428 stractBuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2023-02-17 09:40:02,568 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-02-17 09:40:02,568 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 10 transitions. [2023-02-17 09:40:02,569 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-17 09:40:02,569 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-17 09:40:02,569 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-17 09:40:02,569 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1] [2023-02-17 09:40:02,569 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-17 09:40:02,570 INFO L748 eck$LassoCheckResult]: Stem: 136#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 137#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 133#L19-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 134#L19 assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1;main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~y~0#1 := main_~y~0#1 - 1; 140#L19-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 138#L19 [2023-02-17 09:40:02,570 INFO L750 eck$LassoCheckResult]: Loop: 138#L19 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - 1; 139#L19-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 138#L19 [2023-02-17 09:40:02,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:40:02,571 INFO L85 PathProgramCache]: Analyzing trace with hash 28699811, now seen corresponding path program 2 times [2023-02-17 09:40:02,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:40:02,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581957220] [2023-02-17 09:40:02,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:40:02,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:40:02,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 09:40:02,583 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-17 09:40:02,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 09:40:02,603 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-17 09:40:02,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:40:02,604 INFO L85 PathProgramCache]: Analyzing trace with hash 1406, now seen corresponding path program 2 times [2023-02-17 09:40:02,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:40:02,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852805912] [2023-02-17 09:40:02,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:40:02,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:40:02,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 09:40:02,612 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-17 09:40:02,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 09:40:02,616 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-17 09:40:02,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:40:02,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1810715040, now seen corresponding path program 1 times [2023-02-17 09:40:02,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:40:02,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074399361] [2023-02-17 09:40:02,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:40:02,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:40:02,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 09:40:02,628 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-17 09:40:02,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 09:40:02,634 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-17 09:40:02,638 INFO L210 LassoAnalysis]: Preferences: [2023-02-17 09:40:02,639 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-17 09:40:02,639 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-17 09:40:02,639 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-17 09:40:02,639 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-17 09:40:02,639 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:40:02,639 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-17 09:40:02,639 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-17 09:40:02,639 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig1.c_Iteration3_Loop [2023-02-17 09:40:02,640 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-17 09:40:02,640 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-17 09:40:02,643 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 09:40:02,644 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 09:40:02,645 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 09:40:02,646 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 09:40:02,649 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 09:40:02,656 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-17 09:40:02,658 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-17 09:40:02,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:40:02,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:40:02,659 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) [2023-02-17 09:40:02,662 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 [2023-02-17 09:40:02,664 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-17 09:40:02,664 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-17 09:40:02,681 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 [2023-02-17 09:40:02,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:40:02,682 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:40:02,683 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) [2023-02-17 09:40:02,684 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 [2023-02-17 09:40:02,687 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-17 09:40:02,687 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-17 09:40:02,729 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-17 09:40:02,733 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 [2023-02-17 09:40:02,733 INFO L210 LassoAnalysis]: Preferences: [2023-02-17 09:40:02,733 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-17 09:40:02,733 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-17 09:40:02,733 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-17 09:40:02,733 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-17 09:40:02,733 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:40:02,734 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-17 09:40:02,734 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-17 09:40:02,734 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig1.c_Iteration3_Loop [2023-02-17 09:40:02,734 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-17 09:40:02,734 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-17 09:40:02,735 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 09:40:02,736 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 09:40:02,737 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 09:40:02,738 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 09:40:02,739 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 09:40:02,742 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-17 09:40:02,742 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-17 09:40:02,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:40:02,742 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:40:02,743 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) [2023-02-17 09:40:02,753 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-17 09:40:02,761 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-17 09:40:02,761 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-17 09:40:02,762 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-17 09:40:02,762 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-17 09:40:02,762 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-17 09:40:02,763 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-17 09:40:02,763 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-17 09:40:02,765 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 [2023-02-17 09:40:02,774 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-17 09:40:02,786 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-17 09:40:02,787 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-17 09:40:02,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:40:02,787 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:40:02,790 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) [2023-02-17 09:40:02,791 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 [2023-02-17 09:40:02,792 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-17 09:40:02,792 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-17 09:40:02,792 INFO L513 LassoAnalysis]: Proved termination. [2023-02-17 09:40:02,792 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2023-02-17 09:40:02,799 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 [2023-02-17 09:40:02,799 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-17 09:40:02,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:40:02,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:40:02,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-17 09:40:02,820 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 09:40:02,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:40:02,836 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-17 09:40:02,837 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 09:40:02,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:40:02,844 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 [2023-02-17 09:40:02,844 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 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) [2023-02-17 09:40:02,853 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2023-02-17 09:40:02,861 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4. 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 11 states and 14 transitions. Complement of second has 5 states. [2023-02-17 09:40:02,861 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 [2023-02-17 09:40:02,862 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) [2023-02-17 09:40:02,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2023-02-17 09:40:02,862 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 5 letters. Loop has 2 letters. [2023-02-17 09:40:02,862 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-17 09:40:02,862 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-02-17 09:40:02,868 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 [2023-02-17 09:40:02,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:40:02,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:40:02,878 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-17 09:40:02,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 09:40:02,881 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 [2023-02-17 09:40:02,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:40:02,883 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-17 09:40:02,884 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 09:40:02,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:40:02,889 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 [2023-02-17 09:40:02,890 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 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) [2023-02-17 09:40:02,901 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4. 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 11 states and 14 transitions. Complement of second has 5 states. [2023-02-17 09:40:02,901 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 [2023-02-17 09:40:02,902 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) [2023-02-17 09:40:02,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2023-02-17 09:40:02,902 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 5 letters. Loop has 2 letters. [2023-02-17 09:40:02,902 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-17 09:40:02,902 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-02-17 09:40:02,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:40:02,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:40:02,916 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-17 09:40:02,917 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 09:40:02,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:40:02,921 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-17 09:40:02,921 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 09:40:02,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:40:02,927 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 [2023-02-17 09:40:02,927 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 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) [2023-02-17 09:40:02,940 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4. 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 11 states and 14 transitions. Complement of second has 4 states. [2023-02-17 09:40:02,941 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 [2023-02-17 09:40:02,941 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) [2023-02-17 09:40:02,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2023-02-17 09:40:02,942 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 5 letters. Loop has 2 letters. [2023-02-17 09:40:02,942 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-17 09:40:02,942 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 7 letters. Loop has 2 letters. [2023-02-17 09:40:02,942 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-17 09:40:02,942 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 5 letters. Loop has 4 letters. [2023-02-17 09:40:02,943 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-17 09:40:02,943 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 14 transitions. [2023-02-17 09:40:02,943 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-17 09:40:02,944 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2023-02-17 09:40:02,944 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-02-17 09:40:02,944 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-02-17 09:40:02,944 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-02-17 09:40:02,944 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-17 09:40:02,944 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-17 09:40:02,944 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-17 09:40:02,944 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-17 09:40:02,944 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-02-17 09:40:02,944 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-02-17 09:40:02,944 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-17 09:40:02,945 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-02-17 09:40:02,951 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 17.02 09:40:02 BoogieIcfgContainer [2023-02-17 09:40:02,951 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-02-17 09:40:02,952 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-17 09:40:02,952 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-17 09:40:02,952 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-17 09:40:02,952 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 09:40:01" (3/4) ... [2023-02-17 09:40:02,954 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-02-17 09:40:02,954 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-17 09:40:02,955 INFO L158 Benchmark]: Toolchain (without parser) took 2294.35ms. Allocated memory was 138.4MB in the beginning and 176.2MB in the end (delta: 37.7MB). Free memory was 98.3MB in the beginning and 131.5MB in the end (delta: -33.2MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. [2023-02-17 09:40:02,955 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 138.4MB. Free memory is still 108.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-17 09:40:02,956 INFO L158 Benchmark]: CACSL2BoogieTranslator took 144.91ms. Allocated memory is still 138.4MB. Free memory was 97.9MB in the beginning and 89.1MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-17 09:40:02,956 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.51ms. Allocated memory is still 138.4MB. Free memory was 89.1MB in the beginning and 87.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-17 09:40:02,957 INFO L158 Benchmark]: Boogie Preprocessor took 17.14ms. Allocated memory is still 138.4MB. Free memory was 87.9MB in the beginning and 86.9MB in the end (delta: 936.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-17 09:40:02,957 INFO L158 Benchmark]: RCFGBuilder took 204.81ms. Allocated memory is still 138.4MB. Free memory was 86.9MB in the beginning and 78.1MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-17 09:40:02,957 INFO L158 Benchmark]: BuchiAutomizer took 1893.89ms. Allocated memory was 138.4MB in the beginning and 176.2MB in the end (delta: 37.7MB). Free memory was 78.1MB in the beginning and 131.5MB in the end (delta: -53.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-17 09:40:02,958 INFO L158 Benchmark]: Witness Printer took 2.75ms. Allocated memory is still 176.2MB. Free memory is still 131.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-17 09:40:02,960 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 138.4MB. Free memory is still 108.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 144.91ms. Allocated memory is still 138.4MB. Free memory was 97.9MB in the beginning and 89.1MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.51ms. Allocated memory is still 138.4MB. Free memory was 89.1MB in the beginning and 87.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 17.14ms. Allocated memory is still 138.4MB. Free memory was 87.9MB in the beginning and 86.9MB in the end (delta: 936.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 204.81ms. Allocated memory is still 138.4MB. Free memory was 86.9MB in the beginning and 78.1MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1893.89ms. Allocated memory was 138.4MB in the beginning and 176.2MB in the end (delta: 37.7MB). Free memory was 78.1MB in the beginning and 131.5MB in the end (delta: -53.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.75ms. Allocated memory is still 176.2MB. Free memory is still 131.5MB. 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 3 terminating modules (0 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function y and consists of 5 locations. One deterministic module has affine ranking function x and consists of 3 locations. One nondeterministic module has affine ranking function x and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.8s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 1.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 3 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 [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 26 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 21 mSDsluCounter, 37 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 30 IncrementalHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 27 mSDtfsCounter, 30 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT3 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital17 mio100 ax168 hnf100 lsp33 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 41ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 8 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-02-17 09:40:02,975 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE