./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted/Benghazi.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6c24879c 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/Benghazi.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 9edf84ee73e15e033440f38035e679f46457b07702832d589a58530a086e57e5 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-13 03:04:57,156 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 03:04:57,158 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 03:04:57,194 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 03:04:57,195 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 03:04:57,196 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 03:04:57,199 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 03:04:57,201 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 03:04:57,202 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 03:04:57,208 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 03:04:57,208 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 03:04:57,210 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 03:04:57,210 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 03:04:57,213 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 03:04:57,214 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 03:04:57,217 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 03:04:57,218 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 03:04:57,219 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 03:04:57,220 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 03:04:57,225 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 03:04:57,226 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 03:04:57,227 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 03:04:57,227 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 03:04:57,228 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 03:04:57,229 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 03:04:57,232 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 03:04:57,232 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 03:04:57,232 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 03:04:57,233 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 03:04:57,233 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 03:04:57,234 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 03:04:57,234 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 03:04:57,234 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 03:04:57,235 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 03:04:57,235 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 03:04:57,236 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 03:04:57,236 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 03:04:57,236 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 03:04:57,237 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 03:04:57,237 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 03:04:57,237 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 03:04:57,238 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 03:04:57,238 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-07-13 03:04:57,263 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 03:04:57,263 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 03:04:57,264 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 03:04:57,264 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 03:04:57,267 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 03:04:57,267 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 03:04:57,267 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 03:04:57,267 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-13 03:04:57,267 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-13 03:04:57,268 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-13 03:04:57,268 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-13 03:04:57,269 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-13 03:04:57,269 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-13 03:04:57,269 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 03:04:57,269 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-13 03:04:57,270 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 03:04:57,270 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 03:04:57,271 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-13 03:04:57,271 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-13 03:04:57,272 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-13 03:04:57,275 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 03:04:57,275 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-13 03:04:57,276 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 03:04:57,276 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-13 03:04:57,277 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 03:04:57,277 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 03:04:57,277 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 03:04:57,277 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 03:04:57,278 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-13 03:04:57,278 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9edf84ee73e15e033440f38035e679f46457b07702832d589a58530a086e57e5 [2022-07-13 03:04:57,486 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 03:04:57,518 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 03:04:57,520 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 03:04:57,521 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 03:04:57,521 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 03:04:57,523 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/Benghazi.c [2022-07-13 03:04:57,590 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ed4e1275/763903a80f954a7ea56642d4888d0997/FLAG350f58a98 [2022-07-13 03:04:57,948 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 03:04:57,948 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/Benghazi.c [2022-07-13 03:04:57,952 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ed4e1275/763903a80f954a7ea56642d4888d0997/FLAG350f58a98 [2022-07-13 03:04:57,961 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ed4e1275/763903a80f954a7ea56642d4888d0997 [2022-07-13 03:04:57,963 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 03:04:57,964 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 03:04:57,965 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 03:04:57,965 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 03:04:57,967 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 03:04:57,968 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 03:04:57" (1/1) ... [2022-07-13 03:04:57,968 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57ea8d2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:04:57, skipping insertion in model container [2022-07-13 03:04:57,968 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 03:04:57" (1/1) ... [2022-07-13 03:04:57,973 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 03:04:57,981 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 03:04:58,073 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 03:04:58,076 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 03:04:58,095 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 03:04:58,103 INFO L208 MainTranslator]: Completed translation [2022-07-13 03:04:58,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:04:58 WrapperNode [2022-07-13 03:04:58,104 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 03:04:58,104 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 03:04:58,105 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 03:04:58,105 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 03:04:58,109 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:04:58" (1/1) ... [2022-07-13 03:04:58,112 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:04:58" (1/1) ... [2022-07-13 03:04:58,122 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 20 [2022-07-13 03:04:58,123 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 03:04:58,123 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 03:04:58,123 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 03:04:58,124 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 03:04:58,128 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:04:58" (1/1) ... [2022-07-13 03:04:58,129 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:04:58" (1/1) ... [2022-07-13 03:04:58,129 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:04:58" (1/1) ... [2022-07-13 03:04:58,129 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:04:58" (1/1) ... [2022-07-13 03:04:58,130 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:04:58" (1/1) ... [2022-07-13 03:04:58,133 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:04:58" (1/1) ... [2022-07-13 03:04:58,133 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:04:58" (1/1) ... [2022-07-13 03:04:58,134 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 03:04:58,135 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 03:04:58,135 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 03:04:58,135 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 03:04:58,136 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:04:58" (1/1) ... [2022-07-13 03:04:58,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:04:58,149 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:04:58,158 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) [2022-07-13 03:04:58,173 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 [2022-07-13 03:04:58,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 03:04:58,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 03:04:58,232 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 03:04:58,233 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 03:04:58,284 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 03:04:58,288 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 03:04:58,288 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-13 03:04:58,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 03:04:58 BoogieIcfgContainer [2022-07-13 03:04:58,290 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 03:04:58,291 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-13 03:04:58,291 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-13 03:04:58,293 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-13 03:04:58,293 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-13 03:04:58,293 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.07 03:04:57" (1/3) ... [2022-07-13 03:04:58,294 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@218536af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.07 03:04:58, skipping insertion in model container [2022-07-13 03:04:58,294 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-13 03:04:58,294 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:04:58" (2/3) ... [2022-07-13 03:04:58,295 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@218536af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.07 03:04:58, skipping insertion in model container [2022-07-13 03:04:58,295 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-13 03:04:58,295 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 03:04:58" (3/3) ... [2022-07-13 03:04:58,296 INFO L354 chiAutomizerObserver]: Analyzing ICFG Benghazi.c [2022-07-13 03:04:58,330 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-13 03:04:58,330 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-13 03:04:58,330 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-13 03:04:58,331 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-13 03:04:58,331 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-13 03:04:58,331 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-13 03:04:58,331 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-13 03:04:58,331 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-13 03:04:58,334 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) [2022-07-13 03:04:58,345 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-07-13 03:04:58,345 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:04:58,345 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:04:58,348 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-13 03:04:58,349 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-07-13 03:04:58,349 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-13 03:04:58,349 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) [2022-07-13 03:04:58,349 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-07-13 03:04:58,350 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:04:58,350 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:04:58,350 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-13 03:04:58,350 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-07-13 03:04:58,354 INFO L752 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 6#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_~d1~0#1, main_~d2~0#1, main_~d1old~0#1;havoc main_~x~0#1;havoc main_~d1~0#1;havoc main_~d2~0#1;havoc main_~d1old~0#1;main_~d1~0#1 := 73;main_~d2~0#1 := 74;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 7#L22-2true [2022-07-13 03:04:58,354 INFO L754 eck$LassoCheckResult]: Loop: 7#L22-2true assume !!(main_~x~0#1 >= 0);main_~x~0#1 := main_~x~0#1 - main_~d1~0#1;main_~d1old~0#1 := main_~d1~0#1;main_~d1~0#1 := 1 + main_~d2~0#1;main_~d2~0#1 := 1 + main_~d1old~0#1; 7#L22-2true [2022-07-13 03:04:58,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:04:58,358 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-07-13 03:04:58,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:04:58,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169984126] [2022-07-13 03:04:58,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:04:58,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:04:58,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:04:58,407 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:04:58,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:04:58,417 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:04:58,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:04:58,419 INFO L85 PathProgramCache]: Analyzing trace with hash 42, now seen corresponding path program 1 times [2022-07-13 03:04:58,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:04:58,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538858174] [2022-07-13 03:04:58,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:04:58,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:04:58,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:04:58,427 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:04:58,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:04:58,431 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:04:58,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:04:58,433 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2022-07-13 03:04:58,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:04:58,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712016356] [2022-07-13 03:04:58,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:04:58,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:04:58,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:04:58,448 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:04:58,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:04:58,453 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:04:58,541 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:04:58,543 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:04:58,543 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:04:58,544 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:04:58,544 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-13 03:04:58,544 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:04:58,544 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:04:58,544 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:04:58,544 INFO L133 ssoRankerPreferences]: Filename of dumped script: Benghazi.c_Iteration1_Loop [2022-07-13 03:04:58,544 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:04:58,545 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:04:58,558 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:04:58,567 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:04:58,584 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:04:58,678 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:04:58,679 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-13 03:04:58,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:04:58,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:04:58,684 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) [2022-07-13 03:04:58,686 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 [2022-07-13 03:04:58,687 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:04:58,688 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:04:58,716 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:04:58,717 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: [] [2022-07-13 03:04:58,733 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 [2022-07-13 03:04:58,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:04:58,733 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:04:58,735 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) [2022-07-13 03:04:58,736 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 [2022-07-13 03:04:58,760 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:04:58,760 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:04:58,781 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:04:58,781 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: [] [2022-07-13 03:04:58,797 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2022-07-13 03:04:58,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:04:58,797 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:04:58,807 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) [2022-07-13 03:04:58,826 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:04:58,826 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:04:58,838 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 [2022-07-13 03:04:58,863 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 [2022-07-13 03:04:58,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:04:58,864 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:04:58,865 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) [2022-07-13 03:04:58,866 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 [2022-07-13 03:04:58,868 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-13 03:04:58,868 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:05:01,912 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-13 03:05:01,918 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2022-07-13 03:05:01,918 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:05:01,918 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:05:01,918 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:05:01,918 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:05:01,919 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-13 03:05:01,919 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:05:01,919 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:05:01,919 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:05:01,919 INFO L133 ssoRankerPreferences]: Filename of dumped script: Benghazi.c_Iteration1_Loop [2022-07-13 03:05:01,919 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:05:01,919 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:05:01,920 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:05:01,931 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:05:01,933 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:05:01,994 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:05:01,997 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-13 03:05:01,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:05:01,998 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:05:01,999 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) [2022-07-13 03:05:02,001 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 [2022-07-13 03:05:02,002 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 [2022-07-13 03:05:02,008 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:05:02,009 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:05:02,009 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:05:02,009 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:05:02,013 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-13 03:05:02,016 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-13 03:05:02,031 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:05:02,063 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 [2022-07-13 03:05:02,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:05:02,064 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:05:02,066 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) [2022-07-13 03:05:02,067 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 [2022-07-13 03:05:02,069 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 [2022-07-13 03:05:02,075 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:05:02,075 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:05:02,075 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:05:02,075 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:05:02,078 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-13 03:05:02,078 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-13 03:05:02,095 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:05:02,114 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 [2022-07-13 03:05:02,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:05:02,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:05:02,116 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) [2022-07-13 03:05:02,118 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 [2022-07-13 03:05:02,119 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 [2022-07-13 03:05:02,127 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:05:02,127 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:05:02,128 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:05:02,128 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:05:02,128 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:05:02,132 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:05:02,133 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:05:02,149 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:05:02,167 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 [2022-07-13 03:05:02,168 INFO L490 LassoAnalysis]: Using template '2-nested'. [2022-07-13 03:05:02,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:05:02,168 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:05:02,169 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) [2022-07-13 03:05:02,170 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 [2022-07-13 03:05:02,172 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 [2022-07-13 03:05:02,177 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:05:02,178 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:05:02,178 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:05:02,178 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-07-13 03:05:02,184 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2022-07-13 03:05:02,184 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2022-07-13 03:05:02,202 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:05:02,217 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2022-07-13 03:05:02,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:05:02,218 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:05:02,219 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) [2022-07-13 03:05:02,219 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 [2022-07-13 03:05:02,221 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 [2022-07-13 03:05:02,226 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:05:02,226 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:05:02,226 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:05:02,226 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-07-13 03:05:02,229 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2022-07-13 03:05:02,229 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2022-07-13 03:05:02,242 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:05:02,260 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2022-07-13 03:05:02,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:05:02,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:05:02,261 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) [2022-07-13 03:05:02,262 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 [2022-07-13 03:05:02,264 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 [2022-07-13 03:05:02,270 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:05:02,270 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:05:02,270 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:05:02,270 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:05:02,270 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-07-13 03:05:02,273 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2022-07-13 03:05:02,273 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:05:02,284 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:05:02,300 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 [2022-07-13 03:05:02,300 INFO L490 LassoAnalysis]: Using template '3-nested'. [2022-07-13 03:05:02,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:05:02,300 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:05:02,301 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) [2022-07-13 03:05:02,302 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 [2022-07-13 03:05:02,304 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 [2022-07-13 03:05:02,309 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:05:02,310 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:05:02,310 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:05:02,310 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2022-07-13 03:05:02,313 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2022-07-13 03:05:02,313 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2022-07-13 03:05:02,324 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:05:02,340 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 [2022-07-13 03:05:02,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:05:02,340 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:05:02,343 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) [2022-07-13 03:05:02,344 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 [2022-07-13 03:05:02,345 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 [2022-07-13 03:05:02,351 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:05:02,352 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:05:02,352 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:05:02,352 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2022-07-13 03:05:02,356 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2022-07-13 03:05:02,356 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2022-07-13 03:05:02,372 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:05:02,391 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 [2022-07-13 03:05:02,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:05:02,391 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:05:02,392 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) [2022-07-13 03:05:02,395 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 [2022-07-13 03:05:02,397 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 [2022-07-13 03:05:02,404 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:05:02,404 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:05:02,411 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:05:02,411 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:05:02,411 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2022-07-13 03:05:02,414 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-07-13 03:05:02,414 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:05:02,428 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-13 03:05:02,434 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2022-07-13 03:05:02,434 INFO L444 ModelExtractionUtils]: 8 out of 16 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-13 03:05:02,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:05:02,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:05:02,437 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:05:02,438 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-07-13 03:05:02,439 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-13 03:05:02,439 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-13 03:05:02,439 INFO L513 LassoAnalysis]: Proved termination. [2022-07-13 03:05:02,439 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function 3-nested ranking function: f0 = -1*ULTIMATE.start_main_~d2~0#1 - 1*ULTIMATE.start_main_~d1~0#1 f1 = 2*ULTIMATE.start_main_~x~0#1 - 1*ULTIMATE.start_main_~d1~0#1 + 1 f2 = 1*ULTIMATE.start_main_~x~0#1 + 1 Supporting invariants [] [2022-07-13 03:05:02,458 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 [2022-07-13 03:05:02,463 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-13 03:05:02,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:05:02,530 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2022-07-13 03:05:02,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:05:02,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 03:05:02,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:05:02,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:05:02,550 WARN L261 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-13 03:05:02,550 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:05:02,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:05:02,572 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-07-13 03:05:02,573 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) [2022-07-13 03:05:02,602 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. [2022-07-13 03:05:02,603 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 [2022-07-13 03:05:02,607 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) [2022-07-13 03:05:02,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2022-07-13 03:05:02,608 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 2 letters. Loop has 1 letters. [2022-07-13 03:05:02,609 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:05:02,609 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 3 letters. Loop has 1 letters. [2022-07-13 03:05:02,609 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:05:02,609 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 2 letters. Loop has 2 letters. [2022-07-13 03:05:02,609 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:05:02,610 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 19 transitions. [2022-07-13 03:05:02,611 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-13 03:05:02,612 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 0 states and 0 transitions. [2022-07-13 03:05:02,613 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-07-13 03:05:02,613 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-07-13 03:05:02,613 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-07-13 03:05:02,613 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 03:05:02,613 INFO L369 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-13 03:05:02,614 INFO L392 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-13 03:05:02,614 INFO L374 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-13 03:05:02,614 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-13 03:05:02,614 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-07-13 03:05:02,614 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-13 03:05:02,614 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-07-13 03:05:02,618 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.07 03:05:02 BoogieIcfgContainer [2022-07-13 03:05:02,618 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-13 03:05:02,619 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-13 03:05:02,619 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-13 03:05:02,619 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-13 03:05:02,620 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 03:04:58" (3/4) ... [2022-07-13 03:05:02,622 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-13 03:05:02,622 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-13 03:05:02,622 INFO L158 Benchmark]: Toolchain (without parser) took 4658.62ms. Allocated memory was 92.3MB in the beginning and 123.7MB in the end (delta: 31.5MB). Free memory was 59.4MB in the beginning and 90.4MB in the end (delta: -31.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 03:05:02,623 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 92.3MB. Free memory is still 46.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 03:05:02,623 INFO L158 Benchmark]: CACSL2BoogieTranslator took 139.25ms. Allocated memory is still 92.3MB. Free memory was 59.2MB in the beginning and 69.6MB in the end (delta: -10.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-13 03:05:02,624 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.36ms. Allocated memory is still 92.3MB. Free memory was 69.6MB in the beginning and 68.4MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 03:05:02,624 INFO L158 Benchmark]: Boogie Preprocessor took 11.05ms. Allocated memory is still 92.3MB. Free memory was 68.4MB in the beginning and 67.5MB in the end (delta: 906.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 03:05:02,624 INFO L158 Benchmark]: RCFGBuilder took 154.97ms. Allocated memory is still 92.3MB. Free memory was 67.3MB in the beginning and 59.7MB in the end (delta: 7.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-07-13 03:05:02,625 INFO L158 Benchmark]: BuchiAutomizer took 4327.88ms. Allocated memory was 92.3MB in the beginning and 123.7MB in the end (delta: 31.5MB). Free memory was 59.5MB in the beginning and 91.6MB in the end (delta: -32.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 03:05:02,625 INFO L158 Benchmark]: Witness Printer took 3.06ms. Allocated memory is still 123.7MB. Free memory was 91.6MB in the beginning and 90.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 03:05:02,627 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 92.3MB. Free memory is still 46.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 139.25ms. Allocated memory is still 92.3MB. Free memory was 59.2MB in the beginning and 69.6MB in the end (delta: -10.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 18.36ms. Allocated memory is still 92.3MB. Free memory was 69.6MB in the beginning and 68.4MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 11.05ms. Allocated memory is still 92.3MB. Free memory was 68.4MB in the beginning and 67.5MB in the end (delta: 906.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 154.97ms. Allocated memory is still 92.3MB. Free memory was 67.3MB in the beginning and 59.7MB in the end (delta: 7.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 4327.88ms. Allocated memory was 92.3MB in the beginning and 123.7MB in the end (delta: 31.5MB). Free memory was 59.5MB in the beginning and 91.6MB in the end (delta: -32.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.06ms. Allocated memory is still 123.7MB. Free memory was 91.6MB in the beginning and 90.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. 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 3-nested ranking function (if -1 * d2 + -1 * d1 > 0 then 2 else (if 2 * x + -1 * d1 + 1 > 0 then 1 else 0)), (if -1 * d2 + -1 * d1 > 0 then -1 * d2 + -1 * d1 else (if 2 * x + -1 * d1 + 1 > 0 then 2 * x + -1 * d1 + 1 else x + 1)) and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.2s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 4.1s. 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: inital25 mio100 ax148 hnf100 lsp67 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq196 hnf91 smp100 dnf100 smp100 tf104 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 23ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 4 MotzkinApplications: 12 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 3.2s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-07-13 03:05:02,664 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