./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-numeric/EvenOdd01-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a31fd051 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-numeric/EvenOdd01-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 93e64a210ad8295ef3e6c8bf5a4996e01ec752ae44f5068490e5115d4dda29b5 --- Real Ultimate output --- This is Ultimate 0.2.2-?-a31fd05 [2023-02-15 14:14:30,020 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-15 14:14:30,022 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-15 14:14:30,055 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-15 14:14:30,056 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-15 14:14:30,056 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-15 14:14:30,057 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-15 14:14:30,059 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-15 14:14:30,060 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-15 14:14:30,060 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-15 14:14:30,061 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-15 14:14:30,062 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-15 14:14:30,062 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-15 14:14:30,063 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-15 14:14:30,063 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-15 14:14:30,064 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-15 14:14:30,065 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-15 14:14:30,065 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-15 14:14:30,067 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-15 14:14:30,068 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-15 14:14:30,069 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-15 14:14:30,070 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-15 14:14:30,070 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-15 14:14:30,071 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-15 14:14:30,073 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-15 14:14:30,088 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-15 14:14:30,089 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-15 14:14:30,089 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-15 14:14:30,090 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-15 14:14:30,091 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-15 14:14:30,091 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-15 14:14:30,091 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-15 14:14:30,092 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-15 14:14:30,093 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-15 14:14:30,095 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-15 14:14:30,095 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-15 14:14:30,096 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-15 14:14:30,096 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-15 14:14:30,096 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-15 14:14:30,097 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-15 14:14:30,098 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-15 14:14:30,099 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-02-15 14:14:30,126 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-15 14:14:30,127 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-15 14:14:30,127 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-15 14:14:30,128 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-15 14:14:30,128 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-15 14:14:30,129 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-15 14:14:30,129 INFO L138 SettingsManager]: * Use SBE=true [2023-02-15 14:14:30,129 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-02-15 14:14:30,129 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-02-15 14:14:30,129 INFO L138 SettingsManager]: * Use old map elimination=false [2023-02-15 14:14:30,130 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2023-02-15 14:14:30,130 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2023-02-15 14:14:30,130 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-02-15 14:14:30,130 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-15 14:14:30,130 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-15 14:14:30,130 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-15 14:14:30,131 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-15 14:14:30,131 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-02-15 14:14:30,131 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-02-15 14:14:30,131 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-02-15 14:14:30,131 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-15 14:14:30,131 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-02-15 14:14:30,131 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-15 14:14:30,132 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-02-15 14:14:30,132 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-15 14:14:30,132 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-15 14:14:30,132 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-15 14:14:30,132 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-15 14:14:30,133 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-02-15 14:14:30,133 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 93e64a210ad8295ef3e6c8bf5a4996e01ec752ae44f5068490e5115d4dda29b5 [2023-02-15 14:14:30,282 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-15 14:14:30,295 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-15 14:14:30,296 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-15 14:14:30,297 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-15 14:14:30,297 INFO L275 PluginConnector]: CDTParser initialized [2023-02-15 14:14:30,298 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-numeric/EvenOdd01-2.c [2023-02-15 14:14:31,213 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-15 14:14:31,335 INFO L351 CDTParser]: Found 1 translation units. [2023-02-15 14:14:31,338 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-numeric/EvenOdd01-2.c [2023-02-15 14:14:31,344 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47b6159a3/3f168bb2fc284c31bce58fac4e86bc88/FLAG1b5d70e2b [2023-02-15 14:14:31,354 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47b6159a3/3f168bb2fc284c31bce58fac4e86bc88 [2023-02-15 14:14:31,356 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-15 14:14:31,357 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-15 14:14:31,358 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-15 14:14:31,358 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-15 14:14:31,361 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-15 14:14:31,362 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 02:14:31" (1/1) ... [2023-02-15 14:14:31,363 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58b1e816 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:14:31, skipping insertion in model container [2023-02-15 14:14:31,363 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 02:14:31" (1/1) ... [2023-02-15 14:14:31,369 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-15 14:14:31,380 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-15 14:14:31,466 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-numeric/EvenOdd01-2.c[938,951] [2023-02-15 14:14:31,469 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 14:14:31,476 INFO L203 MainTranslator]: Completed pre-run [2023-02-15 14:14:31,485 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-numeric/EvenOdd01-2.c[938,951] [2023-02-15 14:14:31,486 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 14:14:31,494 INFO L208 MainTranslator]: Completed translation [2023-02-15 14:14:31,495 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:14:31 WrapperNode [2023-02-15 14:14:31,495 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-15 14:14:31,496 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-15 14:14:31,496 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-15 14:14:31,496 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-15 14:14:31,500 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:14:31" (1/1) ... [2023-02-15 14:14:31,505 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:14:31" (1/1) ... [2023-02-15 14:14:31,514 INFO L138 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 24 [2023-02-15 14:14:31,514 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-15 14:14:31,515 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-15 14:14:31,515 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-15 14:14:31,515 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-15 14:14:31,520 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:14:31" (1/1) ... [2023-02-15 14:14:31,520 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:14:31" (1/1) ... [2023-02-15 14:14:31,521 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:14:31" (1/1) ... [2023-02-15 14:14:31,521 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:14:31" (1/1) ... [2023-02-15 14:14:31,523 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:14:31" (1/1) ... [2023-02-15 14:14:31,524 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:14:31" (1/1) ... [2023-02-15 14:14:31,524 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:14:31" (1/1) ... [2023-02-15 14:14:31,525 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:14:31" (1/1) ... [2023-02-15 14:14:31,525 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-15 14:14:31,526 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-15 14:14:31,526 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-15 14:14:31,526 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-15 14:14:31,527 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:14:31" (1/1) ... [2023-02-15 14:14:31,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:14:31,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:14:31,575 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) [2023-02-15 14:14:31,579 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 [2023-02-15 14:14:31,605 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-15 14:14:31,605 INFO L130 BoogieDeclarations]: Found specification of procedure isEven [2023-02-15 14:14:31,605 INFO L138 BoogieDeclarations]: Found implementation of procedure isEven [2023-02-15 14:14:31,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-15 14:14:31,606 INFO L130 BoogieDeclarations]: Found specification of procedure isOdd [2023-02-15 14:14:31,606 INFO L138 BoogieDeclarations]: Found implementation of procedure isOdd [2023-02-15 14:14:31,606 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-15 14:14:31,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-15 14:14:31,651 INFO L235 CfgBuilder]: Building ICFG [2023-02-15 14:14:31,653 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-15 14:14:31,725 INFO L276 CfgBuilder]: Performing block encoding [2023-02-15 14:14:31,728 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-15 14:14:31,729 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2023-02-15 14:14:31,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 02:14:31 BoogieIcfgContainer [2023-02-15 14:14:31,730 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-15 14:14:31,731 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-02-15 14:14:31,731 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2023-02-15 14:14:31,733 INFO L275 PluginConnector]: BuchiAutomizer initialized [2023-02-15 14:14:31,734 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-15 14:14:31,734 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.02 02:14:31" (1/3) ... [2023-02-15 14:14:31,734 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@43a78734 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.02 02:14:31, skipping insertion in model container [2023-02-15 14:14:31,735 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-15 14:14:31,735 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:14:31" (2/3) ... [2023-02-15 14:14:31,735 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@43a78734 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.02 02:14:31, skipping insertion in model container [2023-02-15 14:14:31,735 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-15 14:14:31,735 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 02:14:31" (3/3) ... [2023-02-15 14:14:31,736 INFO L332 chiAutomizerObserver]: Analyzing ICFG EvenOdd01-2.c [2023-02-15 14:14:31,769 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-02-15 14:14:31,769 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-02-15 14:14:31,769 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-02-15 14:14:31,769 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-02-15 14:14:31,769 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-02-15 14:14:31,769 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-02-15 14:14:31,770 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-02-15 14:14:31,770 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-02-15 14:14:31,772 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 24 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 18 states have internal predecessors, (24), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-02-15 14:14:31,785 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2023-02-15 14:14:31,785 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-15 14:14:31,785 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-15 14:14:31,797 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-02-15 14:14:31,797 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:14:31,797 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-02-15 14:14:31,798 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 24 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 18 states have internal predecessors, (24), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-02-15 14:14:31,799 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2023-02-15 14:14:31,799 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-15 14:14:31,799 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-15 14:14:31,800 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-02-15 14:14:31,800 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:14:31,805 INFO L748 eck$LassoCheckResult]: Stem: 19#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(14, 2);call #Ultimate.allocInit(12, 3); 10#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~ret7#1, main_~n~0#1, main_~result~0#1;main_~n~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 16#L41true assume !(main_~n~0#1 < 0); 4#L44true call main_#t~ret7#1 := isOdd(main_~n~0#1);< 3#$Ultimate##0true [2023-02-15 14:14:31,805 INFO L750 eck$LassoCheckResult]: Loop: 3#$Ultimate##0true ~n := #in~n; 8#L19true assume !(0 == ~n); 5#L21true assume !(1 == ~n); 13#L24true call #t~ret4 := isEven(~n - 1);< 15#$Ultimate##0true ~n := #in~n; 7#L29true assume !(0 == ~n); 9#L31true assume !(1 == ~n); 12#L34true call #t~ret5 := isOdd(~n - 1);< 3#$Ultimate##0true [2023-02-15 14:14:31,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:14:31,813 INFO L85 PathProgramCache]: Analyzing trace with hash 1664500, now seen corresponding path program 1 times [2023-02-15 14:14:31,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:14:31,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37261294] [2023-02-15 14:14:31,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:14:31,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:14:31,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:14:31,906 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 14:14:31,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:14:31,945 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 14:14:31,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:14:31,951 INFO L85 PathProgramCache]: Analyzing trace with hash -438340793, now seen corresponding path program 1 times [2023-02-15 14:14:31,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:14:31,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915667548] [2023-02-15 14:14:31,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:14:31,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:14:31,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:14:31,966 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 14:14:31,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:14:31,982 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 14:14:31,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:14:31,983 INFO L85 PathProgramCache]: Analyzing trace with hash 2042181178, now seen corresponding path program 1 times [2023-02-15 14:14:31,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:14:31,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763540877] [2023-02-15 14:14:31,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:14:31,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:14:32,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:14:32,003 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 14:14:32,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:14:32,024 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 14:14:32,164 INFO L210 LassoAnalysis]: Preferences: [2023-02-15 14:14:32,174 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-15 14:14:32,175 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-15 14:14:32,175 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-15 14:14:32,175 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-15 14:14:32,175 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:14:32,175 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-15 14:14:32,175 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-15 14:14:32,175 INFO L133 ssoRankerPreferences]: Filename of dumped script: EvenOdd01-2.c_Iteration1_Loop [2023-02-15 14:14:32,175 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-15 14:14:32,176 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-15 14:14:32,185 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:14:32,198 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:14:32,200 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:14:32,202 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:14:32,209 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:14:32,222 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:14:32,304 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-15 14:14:32,304 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-15 14:14:32,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:14:32,307 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:14:32,309 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) [2023-02-15 14:14:32,310 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 [2023-02-15 14:14:32,315 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 14:14:32,315 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 14:14:32,328 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-15 14:14:32,329 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {isEven_#in~n=0} Honda state: {isEven_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-15 14:14:32,336 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-02-15 14:14:32,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:14:32,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:14:32,337 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) [2023-02-15 14:14:32,338 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 [2023-02-15 14:14:32,340 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 14:14:32,340 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 14:14:32,350 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-15 14:14:32,350 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {isEven_#t~ret5=0} Honda state: {isEven_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-15 14:14:32,353 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 [2023-02-15 14:14:32,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:14:32,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:14:32,355 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) [2023-02-15 14:14:32,356 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 [2023-02-15 14:14:32,358 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 14:14:32,358 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 14:14:32,366 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-15 14:14:32,366 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {isOdd_#t~ret4=0} Honda state: {isOdd_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-15 14:14:32,369 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2023-02-15 14:14:32,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:14:32,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:14:32,371 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) [2023-02-15 14:14:32,374 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 [2023-02-15 14:14:32,374 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 14:14:32,374 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 14:14:32,382 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-15 14:14:32,382 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {isOdd_#res=0} Honda state: {isOdd_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-15 14:14:32,384 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 [2023-02-15 14:14:32,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:14:32,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:14:32,386 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) [2023-02-15 14:14:32,387 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 [2023-02-15 14:14:32,389 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 14:14:32,389 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 14:14:32,411 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 [2023-02-15 14:14:32,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:14:32,411 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:14:32,412 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) [2023-02-15 14:14:32,414 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 [2023-02-15 14:14:32,416 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-15 14:14:32,416 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 14:14:32,466 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-15 14:14:32,466 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {isOdd_#in~n=-8} Honda state: {isOdd_#in~n=-8} Generalized eigenvectors: [{isOdd_#in~n=0}, {isOdd_#in~n=0}, {isOdd_#in~n=-2}] Lambdas: [4, 6, 1] Nus: [1, 0] [2023-02-15 14:14:32,470 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-02-15 14:14:32,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:14:32,471 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:14:32,472 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) [2023-02-15 14:14:32,473 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 [2023-02-15 14:14:32,475 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 14:14:32,475 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 14:14:32,487 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-15 14:14:32,487 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {isEven_#res=0} Honda state: {isEven_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-15 14:14:32,492 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 [2023-02-15 14:14:32,671 INFO L210 LassoAnalysis]: Preferences: [2023-02-15 14:14:32,671 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-15 14:14:32,671 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-15 14:14:32,671 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-15 14:14:32,671 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-15 14:14:32,671 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:14:32,672 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-15 14:14:32,672 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-15 14:14:32,672 INFO L133 ssoRankerPreferences]: Filename of dumped script: EvenOdd01-2.c_Iteration1_Lasso [2023-02-15 14:14:32,672 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-15 14:14:32,672 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-15 14:14:32,673 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:14:32,675 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:14:32,677 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:14:32,687 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:14:32,703 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:14:32,705 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:14:32,715 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:14:32,716 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:14:32,731 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:14:32,734 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:14:32,735 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:14:32,737 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:14:32,739 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:14:32,740 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:14:32,742 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:14:32,744 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:14:32,746 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:14:32,747 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:14:32,749 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:14:32,920 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-15 14:14:32,924 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-15 14:14:32,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:14:32,927 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:14:32,941 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) [2023-02-15 14:14:32,943 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 [2023-02-15 14:14:32,944 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 [2023-02-15 14:14:32,951 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 14:14:32,951 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-15 14:14:32,951 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 14:14:32,952 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 14:14:32,952 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 14:14:32,953 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-15 14:14:32,953 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-15 14:14:32,956 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-15 14:14:32,962 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 [2023-02-15 14:14:32,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:14:32,962 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:14:32,963 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) [2023-02-15 14:14:32,965 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 [2023-02-15 14:14:32,967 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 [2023-02-15 14:14:32,973 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 14:14:32,973 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-15 14:14:32,973 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 14:14:32,973 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 14:14:32,973 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 14:14:32,974 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-15 14:14:32,974 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-15 14:14:32,988 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-15 14:14:32,994 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-02-15 14:14:32,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:14:32,994 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:14:32,995 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) [2023-02-15 14:14:33,002 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 [2023-02-15 14:14:33,008 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 14:14:33,009 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 14:14:33,009 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 14:14:33,009 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 14:14:33,011 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-15 14:14:33,011 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-15 14:14:33,014 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 [2023-02-15 14:14:33,025 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-15 14:14:33,031 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 [2023-02-15 14:14:33,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:14:33,031 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:14:33,032 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) [2023-02-15 14:14:33,034 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 [2023-02-15 14:14:33,035 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 [2023-02-15 14:14:33,041 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 14:14:33,042 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 14:14:33,042 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 14:14:33,042 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 14:14:33,044 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-15 14:14:33,044 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-15 14:14:33,056 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-15 14:14:33,063 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 [2023-02-15 14:14:33,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:14:33,064 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:14:33,065 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) [2023-02-15 14:14:33,077 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 [2023-02-15 14:14:33,077 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 [2023-02-15 14:14:33,084 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 14:14:33,084 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 14:14:33,084 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-02-15 14:14:33,084 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 14:14:33,091 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2023-02-15 14:14:33,091 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2023-02-15 14:14:33,118 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-15 14:14:33,141 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2023-02-15 14:14:33,142 INFO L444 ModelExtractionUtils]: 4 out of 11 variables were initially zero. Simplification set additionally 4 variables to zero. [2023-02-15 14:14:33,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:14:33,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:14:33,183 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) [2023-02-15 14:14:33,184 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 [2023-02-15 14:14:33,185 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-15 14:14:33,215 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2023-02-15 14:14:33,215 INFO L513 LassoAnalysis]: Proved termination. [2023-02-15 14:14:33,215 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(isOdd_#in~n) = 1*isOdd_#in~n Supporting invariants [1*isOdd_#in~n >= 0] [2023-02-15 14:14:33,221 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 [2023-02-15 14:14:33,229 INFO L156 tatePredicateManager]: 1 out of 2 supporting invariants were superfluous and have been removed [2023-02-15 14:14:33,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:14:33,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:14:33,274 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-15 14:14:33,276 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:14:33,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:14:33,332 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 17 conjunts are in the unsatisfiable core [2023-02-15 14:14:33,333 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:14:33,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:14:33,461 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 6 loop predicates [2023-02-15 14:14:33,462 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 24 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 18 states have internal predecessors, (24), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 8 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 3 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:14:33,664 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 24 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 18 states have internal predecessors, (24), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3). Second operand has 8 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 3 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 88 states and 99 transitions. Complement of second has 29 states. [2023-02-15 14:14:33,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 10 states 2 stem states 6 non-accepting loop states 1 accepting loop states [2023-02-15 14:14:33,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 3 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:14:33,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 38 transitions. [2023-02-15 14:14:33,671 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 38 transitions. Stem has 4 letters. Loop has 8 letters. [2023-02-15 14:14:33,672 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 14:14:33,672 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 38 transitions. Stem has 12 letters. Loop has 8 letters. [2023-02-15 14:14:33,672 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 14:14:33,673 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 38 transitions. Stem has 4 letters. Loop has 16 letters. [2023-02-15 14:14:33,673 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 14:14:33,673 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 88 states and 99 transitions. [2023-02-15 14:14:33,677 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-15 14:14:33,678 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 88 states to 0 states and 0 transitions. [2023-02-15 14:14:33,679 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-02-15 14:14:33,679 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-02-15 14:14:33,679 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-02-15 14:14:33,679 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-15 14:14:33,679 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-15 14:14:33,679 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-15 14:14:33,679 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-15 14:14:33,679 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-02-15 14:14:33,680 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-02-15 14:14:33,680 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-15 14:14:33,680 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-02-15 14:14:33,684 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 15.02 02:14:33 BoogieIcfgContainer [2023-02-15 14:14:33,684 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-02-15 14:14:33,685 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-15 14:14:33,685 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-15 14:14:33,685 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-15 14:14:33,685 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 02:14:31" (3/4) ... [2023-02-15 14:14:33,687 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-02-15 14:14:33,687 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-15 14:14:33,688 INFO L158 Benchmark]: Toolchain (without parser) took 2330.75ms. Allocated memory is still 151.0MB. Free memory was 107.2MB in the beginning and 80.5MB in the end (delta: 26.7MB). Peak memory consumption was 29.9MB. Max. memory is 16.1GB. [2023-02-15 14:14:33,688 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 109.1MB. Free memory is still 54.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 14:14:33,688 INFO L158 Benchmark]: CACSL2BoogieTranslator took 136.78ms. Allocated memory is still 151.0MB. Free memory was 106.8MB in the beginning and 97.0MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-15 14:14:33,689 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.97ms. Allocated memory is still 151.0MB. Free memory was 97.0MB in the beginning and 95.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-15 14:14:33,689 INFO L158 Benchmark]: Boogie Preprocessor took 10.72ms. Allocated memory is still 151.0MB. Free memory was 95.3MB in the beginning and 94.6MB in the end (delta: 709.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 14:14:33,689 INFO L158 Benchmark]: RCFGBuilder took 203.85ms. Allocated memory is still 151.0MB. Free memory was 94.6MB in the beginning and 84.9MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-15 14:14:33,690 INFO L158 Benchmark]: BuchiAutomizer took 1953.86ms. Allocated memory is still 151.0MB. Free memory was 84.9MB in the beginning and 80.5MB in the end (delta: 4.4MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. [2023-02-15 14:14:33,690 INFO L158 Benchmark]: Witness Printer took 2.53ms. Allocated memory is still 151.0MB. Free memory is still 80.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 14:14:33,691 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 109.1MB. Free memory is still 54.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 136.78ms. Allocated memory is still 151.0MB. Free memory was 106.8MB in the beginning and 97.0MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 18.97ms. Allocated memory is still 151.0MB. Free memory was 97.0MB in the beginning and 95.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 10.72ms. Allocated memory is still 151.0MB. Free memory was 95.3MB in the beginning and 94.6MB in the end (delta: 709.4kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 203.85ms. Allocated memory is still 151.0MB. Free memory was 94.6MB in the beginning and 84.9MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 1953.86ms. Allocated memory is still 151.0MB. Free memory was 84.9MB in the beginning and 80.5MB in the end (delta: 4.4MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. * Witness Printer took 2.53ms. Allocated memory is still 151.0MB. Free memory is still 80.5MB. 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 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function \old(n) and consists of 10 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.9s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.4s. 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 0. Automata minimization No data available. 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 [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 30 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 30 mSDsluCounter, 39 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 23 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 96 IncrementalHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 16 mSDtfsCounter, 96 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital54 mio100 ax100 hnf100 lsp65 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq190 hnf100 smp100 dnf472 smp16 tf102 neg93 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 151ms VariablesStem: 1 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-02-15 14:14:33,704 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 [2023-02-15 14:14:33,904 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