./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted-lit/BrockschmidtCookFuhs-CAV2013-Introduction.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/BrockschmidtCookFuhs-CAV2013-Introduction.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 cf5951cf7c939342bb5d014c8a7a12e4f95042e50c8d2f477b21d0a3234d49fe --- Real Ultimate output --- This is Ultimate 0.2.2-?-574ddb4 [2023-02-17 09:39:51,053 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-17 09:39:51,055 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-17 09:39:51,075 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-17 09:39:51,076 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-17 09:39:51,079 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-17 09:39:51,080 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-17 09:39:51,082 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-17 09:39:51,084 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-17 09:39:51,087 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-17 09:39:51,088 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-17 09:39:51,090 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-17 09:39:51,090 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-17 09:39:51,095 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-17 09:39:51,096 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-17 09:39:51,098 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-17 09:39:51,099 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-17 09:39:51,100 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-17 09:39:51,101 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-17 09:39:51,104 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-17 09:39:51,105 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-17 09:39:51,106 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-17 09:39:51,107 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-17 09:39:51,107 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-17 09:39:51,113 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-17 09:39:51,113 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-17 09:39:51,114 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-17 09:39:51,115 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-17 09:39:51,115 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-17 09:39:51,116 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-17 09:39:51,116 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-17 09:39:51,116 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-17 09:39:51,118 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-17 09:39:51,118 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-17 09:39:51,120 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-17 09:39:51,120 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-17 09:39:51,120 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-17 09:39:51,120 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-17 09:39:51,121 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-17 09:39:51,122 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-17 09:39:51,122 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-17 09:39:51,123 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-02-17 09:39:51,149 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-17 09:39:51,150 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-17 09:39:51,150 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-17 09:39:51,150 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-17 09:39:51,151 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-17 09:39:51,151 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-17 09:39:51,151 INFO L138 SettingsManager]: * Use SBE=true [2023-02-17 09:39:51,152 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-02-17 09:39:51,152 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-02-17 09:39:51,152 INFO L138 SettingsManager]: * Use old map elimination=false [2023-02-17 09:39:51,153 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2023-02-17 09:39:51,153 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2023-02-17 09:39:51,153 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-02-17 09:39:51,153 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-17 09:39:51,153 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-17 09:39:51,153 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-17 09:39:51,154 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-17 09:39:51,154 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-02-17 09:39:51,154 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-02-17 09:39:51,154 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-02-17 09:39:51,154 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-17 09:39:51,154 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-02-17 09:39:51,154 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-17 09:39:51,155 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-02-17 09:39:51,155 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-17 09:39:51,155 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-17 09:39:51,155 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-17 09:39:51,155 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-17 09:39:51,156 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-02-17 09:39:51,156 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cf5951cf7c939342bb5d014c8a7a12e4f95042e50c8d2f477b21d0a3234d49fe [2023-02-17 09:39:51,350 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-17 09:39:51,365 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-17 09:39:51,367 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-17 09:39:51,368 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-17 09:39:51,368 INFO L275 PluginConnector]: CDTParser initialized [2023-02-17 09:39:51,369 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/BrockschmidtCookFuhs-CAV2013-Introduction.c [2023-02-17 09:39:52,628 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-17 09:39:52,866 INFO L351 CDTParser]: Found 1 translation units. [2023-02-17 09:39:52,866 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/BrockschmidtCookFuhs-CAV2013-Introduction.c [2023-02-17 09:39:52,874 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d229a6ca6/dc16cc033874406ab408574449068495/FLAG486542cf0 [2023-02-17 09:39:52,899 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d229a6ca6/dc16cc033874406ab408574449068495 [2023-02-17 09:39:52,901 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-17 09:39:52,902 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-17 09:39:52,903 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-17 09:39:52,903 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-17 09:39:52,918 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-17 09:39:52,919 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.02 09:39:52" (1/1) ... [2023-02-17 09:39:52,920 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55b8276f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:39:52, skipping insertion in model container [2023-02-17 09:39:52,920 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.02 09:39:52" (1/1) ... [2023-02-17 09:39:52,925 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-17 09:39:52,943 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-17 09:39:53,137 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-17 09:39:53,140 INFO L203 MainTranslator]: Completed pre-run [2023-02-17 09:39:53,148 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-17 09:39:53,156 INFO L208 MainTranslator]: Completed translation [2023-02-17 09:39:53,156 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:39:53 WrapperNode [2023-02-17 09:39:53,157 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-17 09:39:53,157 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-17 09:39:53,157 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-17 09:39:53,158 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-17 09:39:53,162 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:39:53" (1/1) ... [2023-02-17 09:39:53,166 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:39:53" (1/1) ... [2023-02-17 09:39:53,175 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 15 [2023-02-17 09:39:53,176 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-17 09:39:53,176 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-17 09:39:53,176 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-17 09:39:53,177 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-17 09:39:53,188 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:39:53" (1/1) ... [2023-02-17 09:39:53,189 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:39:53" (1/1) ... [2023-02-17 09:39:53,190 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:39:53" (1/1) ... [2023-02-17 09:39:53,190 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:39:53" (1/1) ... [2023-02-17 09:39:53,191 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:39:53" (1/1) ... [2023-02-17 09:39:53,195 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:39:53" (1/1) ... [2023-02-17 09:39:53,196 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:39:53" (1/1) ... [2023-02-17 09:39:53,196 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:39:53" (1/1) ... [2023-02-17 09:39:53,197 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-17 09:39:53,198 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-17 09:39:53,199 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-17 09:39:53,199 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-17 09:39:53,199 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:39:53" (1/1) ... [2023-02-17 09:39:53,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:39:53,210 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:39:53,221 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 09:39:53,239 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 09:39:53,264 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-17 09:39:53,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-17 09:39:53,313 INFO L235 CfgBuilder]: Building ICFG [2023-02-17 09:39:53,315 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-17 09:39:53,369 INFO L276 CfgBuilder]: Performing block encoding [2023-02-17 09:39:53,373 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-17 09:39:53,373 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-17 09:39:53,374 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 09:39:53 BoogieIcfgContainer [2023-02-17 09:39:53,374 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-17 09:39:53,375 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-02-17 09:39:53,376 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2023-02-17 09:39:53,378 INFO L275 PluginConnector]: BuchiAutomizer initialized [2023-02-17 09:39:53,379 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-17 09:39:53,379 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 17.02 09:39:52" (1/3) ... [2023-02-17 09:39:53,380 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3f260af6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.02 09:39:53, skipping insertion in model container [2023-02-17 09:39:53,380 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-17 09:39:53,380 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:39:53" (2/3) ... [2023-02-17 09:39:53,381 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3f260af6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.02 09:39:53, skipping insertion in model container [2023-02-17 09:39:53,381 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-17 09:39:53,381 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 09:39:53" (3/3) ... [2023-02-17 09:39:53,382 INFO L332 chiAutomizerObserver]: Analyzing ICFG BrockschmidtCookFuhs-CAV2013-Introduction.c [2023-02-17 09:39:53,430 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-02-17 09:39:53,430 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-02-17 09:39:53,430 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-02-17 09:39:53,430 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-02-17 09:39:53,430 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-02-17 09:39:53,430 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-02-17 09:39:53,431 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-02-17 09:39:53,431 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-02-17 09:39:53,433 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 09:39:53,444 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-17 09:39:53,445 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-17 09:39:53,445 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-17 09:39:53,448 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-17 09:39:53,448 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-02-17 09:39:53,449 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-02-17 09:39:53,449 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 09:39:53,449 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-17 09:39:53,450 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-17 09:39:53,450 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-17 09:39:53,450 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-17 09:39:53,450 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-02-17 09:39:53,455 INFO L748 eck$LassoCheckResult]: Stem: 6#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := 1; 4#L18-2true [2023-02-17 09:39:53,456 INFO L750 eck$LassoCheckResult]: Loop: 4#L18-2true assume !!(main_~x~0#1 > 0);main_~x~0#1 := main_~x~0#1 - main_~y~0#1;main_~y~0#1 := 1 + main_~y~0#1; 4#L18-2true [2023-02-17 09:39:53,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:39:53,460 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-02-17 09:39:53,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:39:53,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145068789] [2023-02-17 09:39:53,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:39:53,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:39:53,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 09:39:53,528 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-17 09:39:53,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 09:39:53,548 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-17 09:39:53,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:39:53,551 INFO L85 PathProgramCache]: Analyzing trace with hash 42, now seen corresponding path program 1 times [2023-02-17 09:39:53,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:39:53,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036722811] [2023-02-17 09:39:53,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:39:53,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:39:53,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 09:39:53,570 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-17 09:39:53,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 09:39:53,574 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-17 09:39:53,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:39:53,575 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2023-02-17 09:39:53,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:39:53,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634333983] [2023-02-17 09:39:53,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:39:53,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:39:53,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 09:39:53,580 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-17 09:39:53,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 09:39:53,584 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-17 09:39:53,606 INFO L210 LassoAnalysis]: Preferences: [2023-02-17 09:39:53,606 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-17 09:39:53,609 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-17 09:39:53,609 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-17 09:39:53,610 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-17 09:39:53,610 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:39:53,610 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-17 09:39:53,610 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-17 09:39:53,610 INFO L133 ssoRankerPreferences]: Filename of dumped script: BrockschmidtCookFuhs-CAV2013-Introduction.c_Iteration1_Loop [2023-02-17 09:39:53,610 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-17 09:39:53,611 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-17 09:39:53,625 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 09:39:53,635 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 09:39:53,636 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 09:39:53,651 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-17 09:39:53,652 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-17 09:39:53,653 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:39:53,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:39:53,657 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 09:39:53,658 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 09:39:53,660 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-17 09:39:53,660 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-17 09:39:53,693 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-17 09:39:53,693 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 09:39:53,697 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 09:39:53,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:39:53,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:39:53,699 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 09:39:53,701 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 09:39:53,702 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-17 09:39:53,703 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-17 09:39:53,719 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-17 09:39:53,719 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 09:39:53,722 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 09:39:53,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:39:53,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:39:53,724 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 09:39:53,734 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 09:39:53,735 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-17 09:39:53,736 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-17 09:39:53,769 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 09:39:53,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:39:53,769 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:39:53,770 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 09:39:53,771 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 09:39:53,773 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-17 09:39:53,774 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-17 09:39:53,907 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-17 09:39:53,914 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 09:39:53,915 INFO L210 LassoAnalysis]: Preferences: [2023-02-17 09:39:53,915 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-17 09:39:53,915 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-17 09:39:53,915 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-17 09:39:53,915 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-17 09:39:53,915 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:39:53,915 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-17 09:39:53,916 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-17 09:39:53,916 INFO L133 ssoRankerPreferences]: Filename of dumped script: BrockschmidtCookFuhs-CAV2013-Introduction.c_Iteration1_Loop [2023-02-17 09:39:53,916 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-17 09:39:53,916 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-17 09:39:53,917 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 09:39:53,920 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 09:39:53,923 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 09:39:53,929 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-17 09:39:53,932 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-17 09:39:53,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:39:53,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:39:53,934 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 09:39:53,936 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-02-17 09:39:53,938 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-17 09:39:53,944 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-17 09:39:53,945 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-17 09:39:53,945 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-17 09:39:53,945 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-17 09:39:53,948 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-17 09:39:53,949 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-17 09:39:53,975 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-17 09:39:53,978 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 09:39:53,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:39:53,979 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:39:53,980 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 09:39:53,982 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 09:39:53,984 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 09:39:53,991 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-17 09:39:53,991 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-17 09:39:53,991 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-17 09:39:53,991 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-17 09:39:53,994 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-17 09:39:53,994 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-17 09:39:54,011 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-17 09:39:54,018 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 [2023-02-17 09:39:54,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:39:54,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:39:54,033 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 09:39:54,035 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 09:39:54,063 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 09:39:54,071 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-17 09:39:54,071 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-17 09:39:54,071 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-17 09:39:54,072 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-17 09:39:54,072 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-17 09:39:54,074 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-17 09:39:54,074 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-17 09:39:54,089 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-17 09:39:54,095 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 09:39:54,095 INFO L490 LassoAnalysis]: Using template '2-nested'. [2023-02-17 09:39:54,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:39:54,096 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:39:54,099 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 09:39:54,101 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 09:39:54,103 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 09:39:54,110 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-17 09:39:54,111 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-17 09:39:54,111 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-17 09:39:54,111 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2023-02-17 09:39:54,114 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2023-02-17 09:39:54,114 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2023-02-17 09:39:54,123 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-17 09:39:54,128 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 09:39:54,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:39:54,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:39:54,154 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 09:39:54,156 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 09:39:54,158 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 09:39:54,165 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-17 09:39:54,165 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-17 09:39:54,165 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-17 09:39:54,165 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2023-02-17 09:39:54,176 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2023-02-17 09:39:54,176 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2023-02-17 09:39:54,189 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-17 09:39:54,202 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 [2023-02-17 09:39:54,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:39:54,203 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:39:54,204 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 09:39:54,206 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 09:39:54,207 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 09:39:54,215 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-17 09:39:54,216 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-17 09:39:54,216 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-17 09:39:54,216 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-17 09:39:54,216 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2023-02-17 09:39:54,218 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2023-02-17 09:39:54,218 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-17 09:39:54,237 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-17 09:39:54,242 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-17 09:39:54,242 INFO L444 ModelExtractionUtils]: 2 out of 7 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-17 09:39:54,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:39:54,243 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:39:54,279 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 09:39:54,328 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 09:39:54,329 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-17 09:39:54,329 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-17 09:39:54,329 INFO L513 LassoAnalysis]: Proved termination. [2023-02-17 09:39:54,329 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = -2*ULTIMATE.start_main_~y~0#1 + 1 f1 = 2*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2023-02-17 09:39:54,333 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 09:39:54,336 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-17 09:39:54,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:39:54,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:39:54,375 INFO L263 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-17 09:39:54,375 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 09:39:54,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:39:54,386 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-17 09:39:54,387 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 09:39:54,388 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 09:39:54,415 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-02-17 09:39:54,416 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 09:39:54,445 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 16 states and 19 transitions. Complement of second has 5 states. [2023-02-17 09:39:54,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-02-17 09:39:54,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 09:39:54,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2023-02-17 09:39:54,453 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 2 letters. Loop has 1 letters. [2023-02-17 09:39:54,454 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-17 09:39:54,454 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 3 letters. Loop has 1 letters. [2023-02-17 09:39:54,454 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-17 09:39:54,454 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 2 letters. Loop has 2 letters. [2023-02-17 09:39:54,457 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-17 09:39:54,458 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 19 transitions. [2023-02-17 09:39:54,461 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-17 09:39:54,462 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 0 states and 0 transitions. [2023-02-17 09:39:54,463 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-02-17 09:39:54,463 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-02-17 09:39:54,464 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-02-17 09:39:54,464 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-17 09:39:54,464 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-17 09:39:54,469 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-17 09:39:54,469 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-17 09:39:54,469 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-02-17 09:39:54,470 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-02-17 09:39:54,470 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-17 09:39:54,470 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-02-17 09:39:54,477 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 17.02 09:39:54 BoogieIcfgContainer [2023-02-17 09:39:54,477 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-02-17 09:39:54,479 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-17 09:39:54,479 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-17 09:39:54,479 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-17 09:39:54,480 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 09:39:53" (3/4) ... [2023-02-17 09:39:54,486 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-02-17 09:39:54,486 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-17 09:39:54,487 INFO L158 Benchmark]: Toolchain (without parser) took 1584.97ms. Allocated memory was 138.4MB in the beginning and 192.9MB in the end (delta: 54.5MB). Free memory was 75.6MB in the beginning and 104.8MB in the end (delta: -29.2MB). Peak memory consumption was 27.4MB. Max. memory is 16.1GB. [2023-02-17 09:39:54,491 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 138.4MB. Free memory is still 73.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-17 09:39:54,491 INFO L158 Benchmark]: CACSL2BoogieTranslator took 254.19ms. Allocated memory was 138.4MB in the beginning and 192.9MB in the end (delta: 54.5MB). Free memory was 75.2MB in the beginning and 162.4MB in the end (delta: -87.2MB). Peak memory consumption was 13.0MB. Max. memory is 16.1GB. [2023-02-17 09:39:54,492 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.43ms. Allocated memory is still 192.9MB. Free memory was 162.4MB in the beginning and 161.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-17 09:39:54,492 INFO L158 Benchmark]: Boogie Preprocessor took 21.05ms. Allocated memory is still 192.9MB. Free memory was 161.1MB in the beginning and 164.4MB in the end (delta: -3.3MB). Peak memory consumption was 3.9MB. Max. memory is 16.1GB. [2023-02-17 09:39:54,492 INFO L158 Benchmark]: RCFGBuilder took 176.41ms. Allocated memory is still 192.9MB. Free memory was 164.4MB in the beginning and 155.1MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-17 09:39:54,493 INFO L158 Benchmark]: BuchiAutomizer took 1102.07ms. Allocated memory is still 192.9MB. Free memory was 155.1MB in the beginning and 105.7MB in the end (delta: 49.4MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2023-02-17 09:39:54,495 INFO L158 Benchmark]: Witness Printer took 7.46ms. Allocated memory is still 192.9MB. Free memory was 105.7MB in the beginning and 104.8MB in the end (delta: 896.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-17 09:39:54,501 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 138.4MB. Free memory is still 73.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 254.19ms. Allocated memory was 138.4MB in the beginning and 192.9MB in the end (delta: 54.5MB). Free memory was 75.2MB in the beginning and 162.4MB in the end (delta: -87.2MB). Peak memory consumption was 13.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 18.43ms. Allocated memory is still 192.9MB. Free memory was 162.4MB in the beginning and 161.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 21.05ms. Allocated memory is still 192.9MB. Free memory was 161.1MB in the beginning and 164.4MB in the end (delta: -3.3MB). Peak memory consumption was 3.9MB. Max. memory is 16.1GB. * RCFGBuilder took 176.41ms. Allocated memory is still 192.9MB. Free memory was 164.4MB in the beginning and 155.1MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1102.07ms. Allocated memory is still 192.9MB. Free memory was 155.1MB in the beginning and 105.7MB in the end (delta: 49.4MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * Witness Printer took 7.46ms. Allocated memory is still 192.9MB. Free memory was 105.7MB in the beginning and 104.8MB in the end (delta: 896.4kB). 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 2-nested ranking function (if -2 * y + 1 > 0 then 1 else 0), (if -2 * y + 1 > 0 then -2 * y + 1 else 2 * x) and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.0s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. 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, 6 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 5 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital16 mio100 ax175 hnf100 lsp57 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq181 hnf93 smp100 dnf100 smp100 tf107 neg100 sie106 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 27ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 3 MotzkinApplications: 9 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s 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 09:39:54,527 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2023-02-17 09:39:54,717 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