./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted/Parallel.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 7e1ff0e6 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/Parallel.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 6d237a1b253e1662249abfec0a27795a205783446cdc8f92e994520c562b96f7 --- Real Ultimate output --- This is Ultimate 0.2.2-?-7e1ff0e [2023-02-15 02:22:14,761 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-15 02:22:14,762 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-15 02:22:14,796 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-15 02:22:14,797 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-15 02:22:14,800 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-15 02:22:14,801 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-15 02:22:14,803 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-15 02:22:14,804 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-15 02:22:14,809 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-15 02:22:14,810 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-15 02:22:14,811 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-15 02:22:14,812 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-15 02:22:14,813 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-15 02:22:14,814 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-15 02:22:14,815 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-15 02:22:14,816 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-15 02:22:14,817 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-15 02:22:14,818 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-15 02:22:14,821 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-15 02:22:14,822 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-15 02:22:14,823 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-15 02:22:14,824 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-15 02:22:14,824 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-15 02:22:14,828 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-15 02:22:14,828 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-15 02:22:14,829 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-15 02:22:14,830 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-15 02:22:14,830 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-15 02:22:14,831 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-15 02:22:14,831 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-15 02:22:14,831 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-15 02:22:14,832 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-15 02:22:14,833 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-15 02:22:14,834 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-15 02:22:14,834 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-15 02:22:14,834 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-15 02:22:14,834 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-15 02:22:14,835 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-15 02:22:14,835 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-15 02:22:14,836 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-15 02:22:14,837 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-02-15 02:22:14,860 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-15 02:22:14,860 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-15 02:22:14,860 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-15 02:22:14,861 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-15 02:22:14,862 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-15 02:22:14,862 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-15 02:22:14,862 INFO L138 SettingsManager]: * Use SBE=true [2023-02-15 02:22:14,862 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-02-15 02:22:14,862 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-02-15 02:22:14,862 INFO L138 SettingsManager]: * Use old map elimination=false [2023-02-15 02:22:14,863 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2023-02-15 02:22:14,863 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2023-02-15 02:22:14,863 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-02-15 02:22:14,864 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-15 02:22:14,864 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-15 02:22:14,864 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-15 02:22:14,864 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-15 02:22:14,864 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-02-15 02:22:14,864 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-02-15 02:22:14,865 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-02-15 02:22:14,865 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-15 02:22:14,865 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-02-15 02:22:14,865 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-15 02:22:14,865 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-02-15 02:22:14,865 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-15 02:22:14,866 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-15 02:22:14,866 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-15 02:22:14,866 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-15 02:22:14,867 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-02-15 02:22:14,867 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6d237a1b253e1662249abfec0a27795a205783446cdc8f92e994520c562b96f7 [2023-02-15 02:22:15,051 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-15 02:22:15,067 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-15 02:22:15,070 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-15 02:22:15,071 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-15 02:22:15,071 INFO L275 PluginConnector]: CDTParser initialized [2023-02-15 02:22:15,072 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/Parallel.c [2023-02-15 02:22:16,221 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-15 02:22:16,383 INFO L351 CDTParser]: Found 1 translation units. [2023-02-15 02:22:16,384 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/Parallel.c [2023-02-15 02:22:16,389 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a075ece4/3a79431511fb4a058720cea15f600163/FLAGf68faf71c [2023-02-15 02:22:16,404 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a075ece4/3a79431511fb4a058720cea15f600163 [2023-02-15 02:22:16,406 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-15 02:22:16,407 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-15 02:22:16,410 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-15 02:22:16,410 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-15 02:22:16,413 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-15 02:22:16,413 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 02:22:16" (1/1) ... [2023-02-15 02:22:16,414 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66eab2e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:22:16, skipping insertion in model container [2023-02-15 02:22:16,414 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 02:22:16" (1/1) ... [2023-02-15 02:22:16,421 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-15 02:22:16,436 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-15 02:22:16,520 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 02:22:16,524 INFO L203 MainTranslator]: Completed pre-run [2023-02-15 02:22:16,534 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 02:22:16,542 INFO L208 MainTranslator]: Completed translation [2023-02-15 02:22:16,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:22:16 WrapperNode [2023-02-15 02:22:16,544 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-15 02:22:16,544 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-15 02:22:16,545 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-15 02:22:16,545 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-15 02:22:16,549 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:22:16" (1/1) ... [2023-02-15 02:22:16,554 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:22:16" (1/1) ... [2023-02-15 02:22:16,562 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 17 [2023-02-15 02:22:16,563 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-15 02:22:16,563 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-15 02:22:16,563 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-15 02:22:16,564 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-15 02:22:16,569 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:22:16" (1/1) ... [2023-02-15 02:22:16,569 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:22:16" (1/1) ... [2023-02-15 02:22:16,569 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:22:16" (1/1) ... [2023-02-15 02:22:16,570 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:22:16" (1/1) ... [2023-02-15 02:22:16,570 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:22:16" (1/1) ... [2023-02-15 02:22:16,573 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:22:16" (1/1) ... [2023-02-15 02:22:16,574 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:22:16" (1/1) ... [2023-02-15 02:22:16,574 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:22:16" (1/1) ... [2023-02-15 02:22:16,575 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-15 02:22:16,575 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-15 02:22:16,576 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-15 02:22:16,576 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-15 02:22:16,576 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:22:16" (1/1) ... [2023-02-15 02:22:16,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:16,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:22:16,642 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-15 02:22:16,660 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-02-15 02:22:16,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-15 02:22:16,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-15 02:22:16,718 INFO L235 CfgBuilder]: Building ICFG [2023-02-15 02:22:16,727 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-15 02:22:16,816 INFO L276 CfgBuilder]: Performing block encoding [2023-02-15 02:22:16,823 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-15 02:22:16,828 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-15 02:22:16,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 02:22:16 BoogieIcfgContainer [2023-02-15 02:22:16,830 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-15 02:22:16,842 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-02-15 02:22:16,843 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2023-02-15 02:22:16,846 INFO L275 PluginConnector]: BuchiAutomizer initialized [2023-02-15 02:22:16,846 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-15 02:22:16,846 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.02 02:22:16" (1/3) ... [2023-02-15 02:22:16,847 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@a4ad419 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.02 02:22:16, skipping insertion in model container [2023-02-15 02:22:16,847 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-15 02:22:16,847 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:22:16" (2/3) ... [2023-02-15 02:22:16,848 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@a4ad419 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.02 02:22:16, skipping insertion in model container [2023-02-15 02:22:16,848 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-15 02:22:16,848 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 02:22:16" (3/3) ... [2023-02-15 02:22:16,849 INFO L332 chiAutomizerObserver]: Analyzing ICFG Parallel.c [2023-02-15 02:22:16,899 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-02-15 02:22:16,899 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-02-15 02:22:16,899 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-02-15 02:22:16,900 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-02-15 02:22:16,900 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-02-15 02:22:16,900 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-02-15 02:22:16,900 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-02-15 02:22:16,900 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-02-15 02:22:16,906 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:22:16,918 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-15 02:22:16,918 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-15 02:22:16,918 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-15 02:22:16,921 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-15 02:22:16,922 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-15 02:22:16,922 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-02-15 02:22:16,923 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:22:16,924 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-15 02:22:16,924 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-15 02:22:16,924 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-15 02:22:16,924 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-15 02:22:16,925 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-15 02:22:16,931 INFO L748 eck$LassoCheckResult]: Stem: 5#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 4#L23-2true [2023-02-15 02:22:16,932 INFO L750 eck$LassoCheckResult]: Loop: 4#L23-2true assume !!(main_~x~0#1 >= 0 || main_~y~0#1 >= 0); 6#L23true assume !(main_~x~0#1 >= 0);main_~y~0#1 := main_~y~0#1 - 1; 4#L23-2true [2023-02-15 02:22:16,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:22:16,940 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-02-15 02:22:16,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:22:16,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466848330] [2023-02-15 02:22:16,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:22:16,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:22:17,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 02:22:17,089 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 02:22:17,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 02:22:17,111 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 02:22:17,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:22:17,114 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 1 times [2023-02-15 02:22:17,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:22:17,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082785448] [2023-02-15 02:22:17,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:22:17,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:22:17,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 02:22:17,133 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 02:22:17,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 02:22:17,142 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 02:22:17,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:22:17,144 INFO L85 PathProgramCache]: Analyzing trace with hash 925800, now seen corresponding path program 1 times [2023-02-15 02:22:17,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:22:17,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459819779] [2023-02-15 02:22:17,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:22:17,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:22:17,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 02:22:17,160 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 02:22:17,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 02:22:17,170 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 02:22:17,269 INFO L210 LassoAnalysis]: Preferences: [2023-02-15 02:22:17,270 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-15 02:22:17,270 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-15 02:22:17,270 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-15 02:22:17,270 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-15 02:22:17,270 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:17,271 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-15 02:22:17,271 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-15 02:22:17,271 INFO L133 ssoRankerPreferences]: Filename of dumped script: Parallel.c_Iteration1_Loop [2023-02-15 02:22:17,271 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-15 02:22:17,271 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-15 02:22:17,283 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 02:22:17,304 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 02:22:17,307 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 02:22:17,311 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 02:22:17,369 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-15 02:22:17,369 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-15 02:22:17,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:17,371 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:22:17,374 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-15 02:22:17,397 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 02:22:17,397 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 02:22:17,410 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-02-15 02:22:17,418 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-15 02:22:17,419 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: [] [2023-02-15 02:22:17,443 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-02-15 02:22:17,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:17,445 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:22:17,446 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-15 02:22:17,447 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-02-15 02:22:17,451 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 02:22:17,451 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 02:22:17,465 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-15 02:22:17,466 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: [] [2023-02-15 02:22:17,469 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-02-15 02:22:17,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:17,469 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:22:17,470 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-15 02:22:17,472 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-02-15 02:22:17,476 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 02:22:17,476 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 02:22:17,505 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-15 02:22:17,505 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=-1} Honda state: {ULTIMATE.start_main_~x~0#1=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-15 02:22:17,519 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 [2023-02-15 02:22:17,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:17,520 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:22:17,533 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-15 02:22:17,537 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-02-15 02:22:17,540 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 02:22:17,543 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 02:22:17,556 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-02-15 02:22:17,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:17,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:22:17,558 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-15 02:22:17,560 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-02-15 02:22:17,564 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-15 02:22:17,564 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 02:22:17,593 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-15 02:22:17,598 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-02-15 02:22:17,599 INFO L210 LassoAnalysis]: Preferences: [2023-02-15 02:22:17,599 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-15 02:22:17,599 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-15 02:22:17,599 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-15 02:22:17,599 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-15 02:22:17,599 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:17,599 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-15 02:22:17,599 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-15 02:22:17,599 INFO L133 ssoRankerPreferences]: Filename of dumped script: Parallel.c_Iteration1_Loop [2023-02-15 02:22:17,599 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-15 02:22:17,599 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-15 02:22:17,601 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 02:22:17,613 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 02:22:17,621 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 02:22:17,628 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 02:22:17,701 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-15 02:22:17,704 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-15 02:22:17,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:17,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:22:17,722 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-15 02:22:17,733 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-02-15 02:22:17,735 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-15 02:22:17,742 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 02:22:17,742 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 02:22:17,742 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 02:22:17,742 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 02:22:17,748 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-15 02:22:17,748 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-15 02:22:17,767 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-15 02:22:17,771 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2023-02-15 02:22:17,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:17,771 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:22:17,772 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-15 02:22:17,775 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-02-15 02:22:17,776 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-15 02:22:17,782 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 02:22:17,782 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 02:22:17,783 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 02:22:17,783 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 02:22:17,785 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-15 02:22:17,785 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-15 02:22:17,802 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-15 02:22:17,807 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-02-15 02:22:17,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:17,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:22:17,809 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-15 02:22:17,814 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-02-15 02:22:17,815 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-15 02:22:17,821 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 02:22:17,821 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-15 02:22:17,822 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 02:22:17,822 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 02:22:17,822 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 02:22:17,823 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-15 02:22:17,823 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-15 02:22:17,830 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-15 02:22:17,835 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-02-15 02:22:17,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:17,836 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:22:17,837 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-15 02:22:17,838 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-02-15 02:22:17,840 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-15 02:22:17,847 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 02:22:17,848 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-15 02:22:17,848 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 02:22:17,848 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 02:22:17,848 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 02:22:17,849 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-15 02:22:17,849 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-15 02:22:17,852 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-15 02:22:17,855 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-15 02:22:17,855 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-15 02:22:17,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:17,857 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:22:17,911 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-15 02:22:17,912 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-02-15 02:22:17,913 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-15 02:22:17,913 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-15 02:22:17,913 INFO L513 LassoAnalysis]: Proved termination. [2023-02-15 02:22:17,913 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 2*ULTIMATE.start_main_~y~0#1 + 1 Supporting invariants [] [2023-02-15 02:22:17,916 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-02-15 02:22:17,919 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-15 02:22:17,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:22:17,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:22:17,941 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-15 02:22:17,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 02:22:17,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:22:17,949 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-15 02:22:17,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 02:22:17,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:22:17,983 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-02-15 02:22:17,985 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:22:18,010 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 22 states and 31 transitions. Complement of second has 7 states. [2023-02-15 02:22:18,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-02-15 02:22:18,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:22:18,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 16 transitions. [2023-02-15 02:22:18,015 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 2 letters. Loop has 2 letters. [2023-02-15 02:22:18,016 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 02:22:18,016 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 4 letters. Loop has 2 letters. [2023-02-15 02:22:18,016 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 02:22:18,016 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 2 letters. Loop has 4 letters. [2023-02-15 02:22:18,016 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 02:22:18,017 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 31 transitions. [2023-02-15 02:22:18,018 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-15 02:22:18,020 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 9 states and 12 transitions. [2023-02-15 02:22:18,021 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2023-02-15 02:22:18,021 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2023-02-15 02:22:18,021 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 12 transitions. [2023-02-15 02:22:18,021 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-15 02:22:18,021 INFO L218 hiAutomatonCegarLoop]: Abstraction has 9 states and 12 transitions. [2023-02-15 02:22:18,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 12 transitions. [2023-02-15 02:22:18,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2023-02-15 02:22:18,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:22:18,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2023-02-15 02:22:18,038 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2023-02-15 02:22:18,038 INFO L428 stractBuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2023-02-15 02:22:18,038 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-02-15 02:22:18,038 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 11 transitions. [2023-02-15 02:22:18,039 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-15 02:22:18,039 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-15 02:22:18,039 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-15 02:22:18,039 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-02-15 02:22:18,039 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-15 02:22:18,039 INFO L748 eck$LassoCheckResult]: Stem: 73#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 74#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 75#L23-2 assume !!(main_~x~0#1 >= 0 || main_~y~0#1 >= 0); 69#L23 [2023-02-15 02:22:18,040 INFO L750 eck$LassoCheckResult]: Loop: 69#L23 assume main_~x~0#1 >= 0;main_~x~0#1 := main_~x~0#1 - 1; 68#L23-2 assume !!(main_~x~0#1 >= 0 || main_~y~0#1 >= 0); 69#L23 [2023-02-15 02:22:18,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:22:18,040 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2023-02-15 02:22:18,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:22:18,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632243514] [2023-02-15 02:22:18,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:22:18,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:22:18,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 02:22:18,044 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 02:22:18,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 02:22:18,046 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 02:22:18,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:22:18,046 INFO L85 PathProgramCache]: Analyzing trace with hash 1406, now seen corresponding path program 1 times [2023-02-15 02:22:18,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:22:18,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98779525] [2023-02-15 02:22:18,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:22:18,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:22:18,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 02:22:18,050 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 02:22:18,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 02:22:18,052 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 02:22:18,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:22:18,053 INFO L85 PathProgramCache]: Analyzing trace with hash 28699749, now seen corresponding path program 1 times [2023-02-15 02:22:18,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:22:18,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89630] [2023-02-15 02:22:18,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:22:18,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:22:18,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 02:22:18,057 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 02:22:18,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 02:22:18,059 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 02:22:18,076 INFO L210 LassoAnalysis]: Preferences: [2023-02-15 02:22:18,076 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-15 02:22:18,077 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-15 02:22:18,077 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-15 02:22:18,077 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-15 02:22:18,077 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:18,077 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-15 02:22:18,077 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-15 02:22:18,077 INFO L133 ssoRankerPreferences]: Filename of dumped script: Parallel.c_Iteration2_Loop [2023-02-15 02:22:18,077 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-15 02:22:18,077 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-15 02:22:18,078 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 02:22:18,080 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 02:22:18,083 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 02:22:18,131 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-15 02:22:18,131 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-15 02:22:18,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:18,132 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:22:18,133 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-15 02:22:18,135 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-02-15 02:22:18,137 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 02:22:18,137 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 02:22:18,158 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-15 02:22:18,158 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-15 02:22:18,163 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-02-15 02:22:18,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:18,164 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:22:18,173 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-15 02:22:18,175 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-02-15 02:22:18,177 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 02:22:18,177 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 02:22:18,198 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-15 02:22:18,198 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-15 02:22:18,203 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-02-15 02:22:18,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:18,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:22:18,205 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-15 02:22:18,221 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 02:22:18,221 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 02:22:18,231 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-02-15 02:22:18,245 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2023-02-15 02:22:18,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:18,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:22:18,247 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-15 02:22:18,249 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-02-15 02:22:18,251 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-15 02:22:18,251 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 02:22:18,303 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-15 02:22:18,307 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2023-02-15 02:22:18,307 INFO L210 LassoAnalysis]: Preferences: [2023-02-15 02:22:18,307 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-15 02:22:18,307 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-15 02:22:18,307 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-15 02:22:18,307 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-15 02:22:18,307 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:18,307 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-15 02:22:18,307 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-15 02:22:18,307 INFO L133 ssoRankerPreferences]: Filename of dumped script: Parallel.c_Iteration2_Loop [2023-02-15 02:22:18,308 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-15 02:22:18,308 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-15 02:22:18,309 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 02:22:18,312 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 02:22:18,314 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 02:22:18,369 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-15 02:22:18,370 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-15 02:22:18,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:18,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:22:18,371 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-15 02:22:18,392 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-15 02:22:18,399 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 02:22:18,399 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 02:22:18,399 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 02:22:18,399 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 02:22:18,401 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-15 02:22:18,401 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-15 02:22:18,405 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-02-15 02:22:18,413 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-15 02:22:18,417 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2023-02-15 02:22:18,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:18,417 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:22:18,418 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-15 02:22:18,420 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-02-15 02:22:18,422 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-15 02:22:18,427 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 02:22:18,427 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 02:22:18,427 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 02:22:18,428 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 02:22:18,429 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-15 02:22:18,429 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-15 02:22:18,445 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-15 02:22:18,463 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2023-02-15 02:22:18,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:18,464 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:22:18,475 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-15 02:22:18,476 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-02-15 02:22:18,480 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-15 02:22:18,486 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 02:22:18,486 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-15 02:22:18,486 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 02:22:18,490 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-02-15 02:22:18,490 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 02:22:18,492 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2023-02-15 02:22:18,492 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-15 02:22:18,502 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-15 02:22:18,504 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-15 02:22:18,504 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-15 02:22:18,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:18,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:22:18,517 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-15 02:22:18,544 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-02-15 02:22:18,545 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-15 02:22:18,545 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-15 02:22:18,545 INFO L513 LassoAnalysis]: Proved termination. [2023-02-15 02:22:18,545 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 2*ULTIMATE.start_main_~x~0#1 + 1 Supporting invariants [] [2023-02-15 02:22:18,563 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2023-02-15 02:22:18,565 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-15 02:22:18,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:22:18,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:22:18,583 INFO L263 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-15 02:22:18,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 02:22:18,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:22:18,588 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-15 02:22:18,589 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 02:22:18,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:22:18,618 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-02-15 02:22:18,618 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:22:18,625 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 15 states and 21 transitions. Complement of second has 4 states. [2023-02-15 02:22:18,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-02-15 02:22:18,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:22:18,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2023-02-15 02:22:18,626 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 3 letters. Loop has 2 letters. [2023-02-15 02:22:18,627 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 02:22:18,627 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 2 letters. [2023-02-15 02:22:18,627 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 02:22:18,627 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 3 letters. Loop has 4 letters. [2023-02-15 02:22:18,627 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 02:22:18,627 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 21 transitions. [2023-02-15 02:22:18,628 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-15 02:22:18,628 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 0 states and 0 transitions. [2023-02-15 02:22:18,628 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-02-15 02:22:18,628 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-02-15 02:22:18,629 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-02-15 02:22:18,629 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-15 02:22:18,629 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-15 02:22:18,629 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-15 02:22:18,629 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-15 02:22:18,629 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-02-15 02:22:18,629 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-02-15 02:22:18,629 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-15 02:22:18,629 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-02-15 02:22:18,635 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 15.02 02:22:18 BoogieIcfgContainer [2023-02-15 02:22:18,635 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-02-15 02:22:18,635 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-15 02:22:18,635 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-15 02:22:18,635 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-15 02:22:18,636 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 02:22:16" (3/4) ... [2023-02-15 02:22:18,638 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-02-15 02:22:18,638 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-15 02:22:18,638 INFO L158 Benchmark]: Toolchain (without parser) took 2230.79ms. Allocated memory was 121.6MB in the beginning and 182.5MB in the end (delta: 60.8MB). Free memory was 77.6MB in the beginning and 76.7MB in the end (delta: 938.0kB). Peak memory consumption was 63.1MB. Max. memory is 16.1GB. [2023-02-15 02:22:18,638 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 121.6MB. Free memory was 68.3MB in the beginning and 68.2MB in the end (delta: 117.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 02:22:18,639 INFO L158 Benchmark]: CACSL2BoogieTranslator took 133.87ms. Allocated memory is still 121.6MB. Free memory was 77.2MB in the beginning and 68.1MB in the end (delta: 9.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-15 02:22:18,639 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.44ms. Allocated memory is still 121.6MB. Free memory was 68.1MB in the beginning and 66.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 02:22:18,639 INFO L158 Benchmark]: Boogie Preprocessor took 11.49ms. Allocated memory is still 121.6MB. Free memory was 66.7MB in the beginning and 66.0MB in the end (delta: 711.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-15 02:22:18,640 INFO L158 Benchmark]: RCFGBuilder took 254.59ms. Allocated memory is still 121.6MB. Free memory was 66.0MB in the beginning and 58.0MB in the end (delta: 7.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-02-15 02:22:18,640 INFO L158 Benchmark]: BuchiAutomizer took 1792.46ms. Allocated memory was 121.6MB in the beginning and 182.5MB in the end (delta: 60.8MB). Free memory was 57.6MB in the beginning and 76.7MB in the end (delta: -19.1MB). Peak memory consumption was 42.2MB. Max. memory is 16.1GB. [2023-02-15 02:22:18,640 INFO L158 Benchmark]: Witness Printer took 2.46ms. Allocated memory is still 182.5MB. Free memory is still 76.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 02:22:18,642 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 121.6MB. Free memory was 68.3MB in the beginning and 68.2MB in the end (delta: 117.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 133.87ms. Allocated memory is still 121.6MB. Free memory was 77.2MB in the beginning and 68.1MB in the end (delta: 9.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 18.44ms. Allocated memory is still 121.6MB. Free memory was 68.1MB in the beginning and 66.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 11.49ms. Allocated memory is still 121.6MB. Free memory was 66.7MB in the beginning and 66.0MB in the end (delta: 711.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 254.59ms. Allocated memory is still 121.6MB. Free memory was 66.0MB in the beginning and 58.0MB in the end (delta: 7.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 1792.46ms. Allocated memory was 121.6MB in the beginning and 182.5MB in the end (delta: 60.8MB). Free memory was 57.6MB in the beginning and 76.7MB in the end (delta: -19.1MB). Peak memory consumption was 42.2MB. Max. memory is 16.1GB. * Witness Printer took 2.46ms. Allocated memory is still 182.5MB. Free memory is still 76.7MB. 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 2 terminating modules (0 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function 2 * y + 1 and consists of 5 locations. One deterministic module has affine ranking function 2 * x + 1 and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.7s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.5s. 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 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10 mSDsluCounter, 14 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 14 IncrementalHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 8 mSDtfsCounter, 14 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax178 hnf100 lsp48 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq147 hnf94 smp100 dnf131 smp95 tf109 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 47ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-02-15 02:22:18,671 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2023-02-15 02:22:18,853 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-02-15 02:22:19,059 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