./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted/Benghazi_nondet-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-crafted/Benghazi_nondet-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2f97933f35fe6dc06fe68cfca662228239a8205559235f014a4e90d641a78f3c --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-19 17:01:02,723 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-19 17:01:02,725 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-19 17:01:02,799 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-19 17:01:02,799 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-19 17:01:02,802 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-19 17:01:02,802 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-19 17:01:02,804 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-19 17:01:02,806 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-19 17:01:02,809 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-19 17:01:02,810 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-19 17:01:02,810 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-19 17:01:02,811 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-19 17:01:02,812 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-19 17:01:02,814 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-19 17:01:02,816 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-19 17:01:02,817 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-19 17:01:02,818 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-19 17:01:02,820 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-19 17:01:02,824 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-19 17:01:02,824 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-19 17:01:02,825 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-19 17:01:02,826 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-19 17:01:02,827 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-19 17:01:02,831 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-19 17:01:02,832 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-19 17:01:02,832 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-19 17:01:02,833 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-19 17:01:02,834 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-19 17:01:02,835 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-19 17:01:02,835 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-19 17:01:02,836 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-19 17:01:02,837 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-19 17:01:02,838 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-19 17:01:02,839 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-19 17:01:02,839 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-19 17:01:02,840 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-19 17:01:02,840 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-19 17:01:02,840 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-19 17:01:02,840 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-19 17:01:02,841 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-19 17:01:02,842 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-12-19 17:01:02,868 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-19 17:01:02,868 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-19 17:01:02,869 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-19 17:01:02,869 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-19 17:01:02,870 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-19 17:01:02,870 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-19 17:01:02,870 INFO L138 SettingsManager]: * Use SBE=true [2021-12-19 17:01:02,870 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-19 17:01:02,870 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-19 17:01:02,870 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-19 17:01:02,871 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-19 17:01:02,871 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-19 17:01:02,871 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-19 17:01:02,871 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-19 17:01:02,871 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-19 17:01:02,872 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-19 17:01:02,872 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-19 17:01:02,872 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-19 17:01:02,872 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-19 17:01:02,872 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-19 17:01:02,872 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-19 17:01:02,872 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-19 17:01:02,873 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-19 17:01:02,873 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-19 17:01:02,873 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-19 17:01:02,873 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-19 17:01:02,873 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-19 17:01:02,873 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-19 17:01:02,873 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-19 17:01:02,874 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-19 17:01:02,874 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f97933f35fe6dc06fe68cfca662228239a8205559235f014a4e90d641a78f3c [2021-12-19 17:01:03,164 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-19 17:01:03,177 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-19 17:01:03,179 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-19 17:01:03,179 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-19 17:01:03,180 INFO L275 PluginConnector]: CDTParser initialized [2021-12-19 17:01:03,181 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/Benghazi_nondet-2.c [2021-12-19 17:01:03,247 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f22eb337c/a5848bd89d584f739cebceef6d912ce4/FLAGcc341b508 [2021-12-19 17:01:03,768 INFO L306 CDTParser]: Found 1 translation units. [2021-12-19 17:01:03,768 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/Benghazi_nondet-2.c [2021-12-19 17:01:03,788 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f22eb337c/a5848bd89d584f739cebceef6d912ce4/FLAGcc341b508 [2021-12-19 17:01:04,270 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f22eb337c/a5848bd89d584f739cebceef6d912ce4 [2021-12-19 17:01:04,276 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-19 17:01:04,277 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-19 17:01:04,285 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-19 17:01:04,285 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-19 17:01:04,288 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-19 17:01:04,288 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 05:01:04" (1/1) ... [2021-12-19 17:01:04,289 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61ced19a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:01:04, skipping insertion in model container [2021-12-19 17:01:04,289 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 05:01:04" (1/1) ... [2021-12-19 17:01:04,303 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-19 17:01:04,316 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-19 17:01:04,465 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-19 17:01:04,468 INFO L203 MainTranslator]: Completed pre-run [2021-12-19 17:01:04,481 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-19 17:01:04,490 INFO L208 MainTranslator]: Completed translation [2021-12-19 17:01:04,490 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:01:04 WrapperNode [2021-12-19 17:01:04,491 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-19 17:01:04,492 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-19 17:01:04,492 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-19 17:01:04,492 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-19 17:01:04,498 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:01:04" (1/1) ... [2021-12-19 17:01:04,501 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:01:04" (1/1) ... [2021-12-19 17:01:04,512 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 31 [2021-12-19 17:01:04,512 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-19 17:01:04,513 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-19 17:01:04,513 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-19 17:01:04,513 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-19 17:01:04,518 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:01:04" (1/1) ... [2021-12-19 17:01:04,518 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:01:04" (1/1) ... [2021-12-19 17:01:04,519 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:01:04" (1/1) ... [2021-12-19 17:01:04,519 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:01:04" (1/1) ... [2021-12-19 17:01:04,521 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:01:04" (1/1) ... [2021-12-19 17:01:04,525 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:01:04" (1/1) ... [2021-12-19 17:01:04,526 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:01:04" (1/1) ... [2021-12-19 17:01:04,528 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-19 17:01:04,530 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-19 17:01:04,530 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-19 17:01:04,530 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-19 17:01:04,531 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:01:04" (1/1) ... [2021-12-19 17:01:04,536 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:01:04,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:01:04,552 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) [2021-12-19 17:01:04,572 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 [2021-12-19 17:01:04,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-19 17:01:04,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-19 17:01:04,629 INFO L236 CfgBuilder]: Building ICFG [2021-12-19 17:01:04,630 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-19 17:01:04,708 INFO L277 CfgBuilder]: Performing block encoding [2021-12-19 17:01:04,713 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-19 17:01:04,714 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-19 17:01:04,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 05:01:04 BoogieIcfgContainer [2021-12-19 17:01:04,715 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-19 17:01:04,716 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-19 17:01:04,716 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-19 17:01:04,718 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-19 17:01:04,719 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-19 17:01:04,719 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.12 05:01:04" (1/3) ... [2021-12-19 17:01:04,720 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@63d5a1b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.12 05:01:04, skipping insertion in model container [2021-12-19 17:01:04,720 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-19 17:01:04,720 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:01:04" (2/3) ... [2021-12-19 17:01:04,721 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@63d5a1b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.12 05:01:04, skipping insertion in model container [2021-12-19 17:01:04,721 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-19 17:01:04,721 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 05:01:04" (3/3) ... [2021-12-19 17:01:04,722 INFO L388 chiAutomizerObserver]: Analyzing ICFG Benghazi_nondet-2.c [2021-12-19 17:01:04,769 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-19 17:01:04,769 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-19 17:01:04,770 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-19 17:01:04,770 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-19 17:01:04,770 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-19 17:01:04,770 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-19 17:01:04,770 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-19 17:01:04,770 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-19 17:01:04,779 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 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) [2021-12-19 17:01:04,792 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-12-19 17:01:04,792 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 17:01:04,792 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 17:01:04,795 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-12-19 17:01:04,796 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-12-19 17:01:04,796 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-19 17:01:04,796 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 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) [2021-12-19 17:01:04,797 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-12-19 17:01:04,797 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 17:01:04,798 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 17:01:04,798 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-12-19 17:01:04,798 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-12-19 17:01:04,802 INFO L791 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~x~0#1, main_~d1~0#1, main_~d2~0#1, main_~d1old~0#1;havoc main_~x~0#1;havoc main_~d1~0#1;havoc main_~d2~0#1;havoc main_~d1old~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~d1~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~d2~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 4#L18true assume !!(-1048575 <= main_~x~0#1 && main_~x~0#1 <= 1048575); 10#L19true assume !!(-1048575 <= main_~d1~0#1 && main_~d1~0#1 <= 1048575); 11#L20true assume !!(-1048575 <= main_~d2~0#1 && main_~d2~0#1 <= 1048575); 8#L21-2true [2021-12-19 17:01:04,803 INFO L793 eck$LassoCheckResult]: Loop: 8#L21-2true assume !!(main_~x~0#1 >= 0);main_~x~0#1 := main_~x~0#1 - main_~d1~0#1;main_~d1old~0#1 := main_~d1~0#1;main_~d1~0#1 := 1 + main_~d2~0#1;main_~d2~0#1 := 1 + main_~d1old~0#1; 8#L21-2true [2021-12-19 17:01:04,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:01:04,807 INFO L85 PathProgramCache]: Analyzing trace with hash 28695849, now seen corresponding path program 1 times [2021-12-19 17:01:04,812 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 17:01:04,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262734151] [2021-12-19 17:01:04,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 17:01:04,814 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 17:01:04,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:01:04,863 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 17:01:04,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:01:04,884 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 17:01:04,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:01:04,886 INFO L85 PathProgramCache]: Analyzing trace with hash 57, now seen corresponding path program 1 times [2021-12-19 17:01:04,886 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 17:01:04,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232386391] [2021-12-19 17:01:04,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 17:01:04,887 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 17:01:04,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:01:04,902 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 17:01:04,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:01:04,914 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 17:01:04,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:01:04,915 INFO L85 PathProgramCache]: Analyzing trace with hash 889571345, now seen corresponding path program 1 times [2021-12-19 17:01:04,915 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 17:01:04,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582236496] [2021-12-19 17:01:04,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 17:01:04,916 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 17:01:04,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:01:04,929 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 17:01:04,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:01:04,940 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 17:01:05,047 INFO L210 LassoAnalysis]: Preferences: [2021-12-19 17:01:05,048 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-19 17:01:05,048 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-19 17:01:05,048 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-19 17:01:05,048 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-19 17:01:05,048 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:01:05,049 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-19 17:01:05,049 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-19 17:01:05,049 INFO L133 ssoRankerPreferences]: Filename of dumped script: Benghazi_nondet-2.c_Iteration1_Loop [2021-12-19 17:01:05,049 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-19 17:01:05,049 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-19 17:01:05,067 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:01:05,073 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:01:05,076 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:01:05,170 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-19 17:01:05,170 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-19 17:01:05,172 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:01:05,172 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:01:05,174 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) [2021-12-19 17:01:05,177 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 [2021-12-19 17:01:05,178 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-19 17:01:05,178 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-19 17:01:05,197 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-19 17:01:05,197 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: [] [2021-12-19 17:01:05,214 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 [2021-12-19 17:01:05,215 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:01:05,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:01:05,216 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) [2021-12-19 17:01:05,217 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 [2021-12-19 17:01:05,220 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-19 17:01:05,220 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-19 17:01:05,239 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-19 17:01:05,240 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: [] [2021-12-19 17:01:05,273 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 [2021-12-19 17:01:05,273 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:01:05,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:01:05,274 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) [2021-12-19 17:01:05,278 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 [2021-12-19 17:01:05,279 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-19 17:01:05,279 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-19 17:01:05,313 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2021-12-19 17:01:05,313 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:01:05,314 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:01:05,314 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) [2021-12-19 17:01:05,316 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 [2021-12-19 17:01:05,317 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-19 17:01:05,317 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-19 17:01:07,692 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-19 17:01:07,700 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-12-19 17:01:07,700 INFO L210 LassoAnalysis]: Preferences: [2021-12-19 17:01:07,700 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-19 17:01:07,700 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-19 17:01:07,700 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-19 17:01:07,700 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-19 17:01:07,700 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:01:07,701 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-19 17:01:07,701 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-19 17:01:07,701 INFO L133 ssoRankerPreferences]: Filename of dumped script: Benghazi_nondet-2.c_Iteration1_Loop [2021-12-19 17:01:07,701 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-19 17:01:07,701 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-19 17:01:07,702 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:01:07,709 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:01:07,714 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:01:07,818 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-19 17:01:07,830 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-19 17:01:07,831 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:01:07,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:01:07,847 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) [2021-12-19 17:01:07,874 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 [2021-12-19 17:01:07,881 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 [2021-12-19 17:01:07,882 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:01:07,882 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:01:07,882 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:01:07,882 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 17:01:07,891 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-19 17:01:07,891 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-19 17:01:07,919 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 17:01:07,970 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 [2021-12-19 17:01:07,971 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:01:07,971 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:01:07,972 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) [2021-12-19 17:01:07,974 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 [2021-12-19 17:01:07,975 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 [2021-12-19 17:01:07,982 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:01:07,982 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:01:07,982 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:01:07,982 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 17:01:07,988 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-19 17:01:07,988 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-19 17:01:08,016 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 17:01:08,031 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-12-19 17:01:08,032 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:01:08,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:01:08,033 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:01:08,037 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 [2021-12-19 17:01:08,037 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 [2021-12-19 17:01:08,044 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:01:08,044 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 17:01:08,045 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:01:08,045 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:01:08,045 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 17:01:08,048 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 17:01:08,048 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 17:01:08,054 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 17:01:08,072 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2021-12-19 17:01:08,072 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-12-19 17:01:08,072 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:01:08,072 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:01:08,074 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) [2021-12-19 17:01:08,076 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 [2021-12-19 17:01:08,077 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 17:01:08,083 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:01:08,083 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:01:08,083 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:01:08,083 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-12-19 17:01:08,092 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2021-12-19 17:01:08,092 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2021-12-19 17:01:08,111 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 17:01:08,130 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 [2021-12-19 17:01:08,131 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:01:08,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:01:08,132 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) [2021-12-19 17:01:08,133 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 [2021-12-19 17:01:08,134 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 [2021-12-19 17:01:08,141 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:01:08,141 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:01:08,141 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:01:08,141 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-12-19 17:01:08,150 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2021-12-19 17:01:08,150 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2021-12-19 17:01:08,191 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 17:01:08,207 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 [2021-12-19 17:01:08,208 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:01:08,208 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:01:08,209 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) [2021-12-19 17:01:08,215 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 [2021-12-19 17:01:08,224 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:01:08,224 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 17:01:08,224 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:01:08,224 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:01:08,224 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-12-19 17:01:08,232 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-12-19 17:01:08,232 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 17:01:08,247 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 [2021-12-19 17:01:08,257 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 17:01:08,275 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 [2021-12-19 17:01:08,275 INFO L490 LassoAnalysis]: Using template '3-nested'. [2021-12-19 17:01:08,275 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:01:08,276 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:01:08,277 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) [2021-12-19 17:01:08,278 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 [2021-12-19 17:01:08,278 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 [2021-12-19 17:01:08,285 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:01:08,285 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:01:08,285 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:01:08,285 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-12-19 17:01:08,296 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2021-12-19 17:01:08,297 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-12-19 17:01:08,325 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 17:01:08,360 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 [2021-12-19 17:01:08,361 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:01:08,361 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:01:08,379 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) [2021-12-19 17:01:08,397 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 17:01:08,403 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:01:08,403 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:01:08,403 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:01:08,403 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-12-19 17:01:08,406 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2021-12-19 17:01:08,406 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-12-19 17:01:08,411 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 [2021-12-19 17:01:08,428 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 17:01:08,461 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 [2021-12-19 17:01:08,462 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:01:08,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:01:08,475 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) [2021-12-19 17:01:08,529 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 [2021-12-19 17:01:08,529 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 [2021-12-19 17:01:08,536 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:01:08,537 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 17:01:08,537 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:01:08,537 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:01:08,537 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-12-19 17:01:08,546 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-12-19 17:01:08,546 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 17:01:08,563 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-19 17:01:08,584 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-12-19 17:01:08,584 INFO L444 ModelExtractionUtils]: 8 out of 16 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-12-19 17:01:08,585 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:01:08,586 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:01:08,587 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) [2021-12-19 17:01:08,590 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 [2021-12-19 17:01:08,590 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-19 17:01:08,590 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-19 17:01:08,590 INFO L513 LassoAnalysis]: Proved termination. [2021-12-19 17:01:08,591 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function 3-nested ranking function: f0 = -1*ULTIMATE.start_main_~d1~0#1 - 1*ULTIMATE.start_main_~d2~0#1 f1 = -1*ULTIMATE.start_main_~d1~0#1 + 2*ULTIMATE.start_main_~x~0#1 + 1 f2 = 1*ULTIMATE.start_main_~x~0#1 + 1 Supporting invariants [] [2021-12-19 17:01:08,613 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 [2021-12-19 17:01:08,615 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-19 17:01:08,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:01:08,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 17:01:08,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-19 17:01:08,673 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 17:01:08,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 17:01:08,703 WARN L261 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-19 17:01:08,703 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 17:01:08,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 17:01:08,752 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-12-19 17:01:08,753 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2021-12-19 17:01:08,793 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 27 transitions. Complement of second has 5 states. [2021-12-19 17:01:08,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-12-19 17:01:08,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2021-12-19 17:01:08,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2021-12-19 17:01:08,809 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 5 letters. Loop has 1 letters. [2021-12-19 17:01:08,810 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 17:01:08,810 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 6 letters. Loop has 1 letters. [2021-12-19 17:01:08,813 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 17:01:08,867 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 5 letters. Loop has 2 letters. [2021-12-19 17:01:08,868 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 17:01:08,868 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 27 transitions. [2021-12-19 17:01:08,872 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-19 17:01:08,876 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 0 states and 0 transitions. [2021-12-19 17:01:08,876 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2021-12-19 17:01:08,878 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-19 17:01:08,885 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-19 17:01:08,885 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-19 17:01:08,886 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-19 17:01:08,886 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-19 17:01:08,886 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-19 17:01:08,886 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-19 17:01:08,886 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-19 17:01:08,886 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-12-19 17:01:08,895 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-19 17:01:08,895 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-12-19 17:01:08,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.12 05:01:08 BoogieIcfgContainer [2021-12-19 17:01:08,901 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-19 17:01:08,902 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-19 17:01:08,902 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-19 17:01:08,902 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-19 17:01:08,903 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 05:01:04" (3/4) ... [2021-12-19 17:01:08,906 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-19 17:01:08,917 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-19 17:01:08,921 INFO L158 Benchmark]: Toolchain (without parser) took 4640.37ms. Allocated memory is still 169.9MB. Free memory was 143.5MB in the beginning and 143.4MB in the end (delta: 127.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-19 17:01:08,922 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 92.3MB. Free memory was 49.5MB in the beginning and 49.5MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-19 17:01:08,923 INFO L158 Benchmark]: CACSL2BoogieTranslator took 205.97ms. Allocated memory is still 169.9MB. Free memory was 143.5MB in the beginning and 147.4MB in the end (delta: -3.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-19 17:01:08,923 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.48ms. Allocated memory is still 169.9MB. Free memory was 147.4MB in the beginning and 146.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-19 17:01:08,924 INFO L158 Benchmark]: Boogie Preprocessor took 15.99ms. Allocated memory is still 169.9MB. Free memory was 146.1MB in the beginning and 145.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-19 17:01:08,924 INFO L158 Benchmark]: RCFGBuilder took 185.49ms. Allocated memory is still 169.9MB. Free memory was 145.0MB in the beginning and 136.4MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-19 17:01:08,926 INFO L158 Benchmark]: BuchiAutomizer took 4185.43ms. Allocated memory is still 169.9MB. Free memory was 136.4MB in the beginning and 143.4MB in the end (delta: -7.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-19 17:01:08,926 INFO L158 Benchmark]: Witness Printer took 15.21ms. Allocated memory is still 169.9MB. Free memory is still 143.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-19 17:01:08,933 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 92.3MB. Free memory was 49.5MB in the beginning and 49.5MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 205.97ms. Allocated memory is still 169.9MB. Free memory was 143.5MB in the beginning and 147.4MB in the end (delta: -3.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 20.48ms. Allocated memory is still 169.9MB. Free memory was 147.4MB in the beginning and 146.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 15.99ms. Allocated memory is still 169.9MB. Free memory was 146.1MB in the beginning and 145.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 185.49ms. Allocated memory is still 169.9MB. Free memory was 145.0MB in the beginning and 136.4MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 4185.43ms. Allocated memory is still 169.9MB. Free memory was 136.4MB in the beginning and 143.4MB in the end (delta: -7.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 15.21ms. Allocated memory is still 169.9MB. Free memory is still 143.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has 3-nested ranking function (if -1 * d1 + -1 * d2 > 0 then 2 else (if -1 * d1 + 2 * x + 1 > 0 then 1 else 0)), (if -1 * d1 + -1 * d2 > 0 then -1 * d1 + -1 * d2 else (if -1 * d1 + 2 * x + 1 > 0 then -1 * d1 + 2 * x + 1 else x + 1)) and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.1s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 3.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 14 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 13 mSDsluCounter, 16 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 13 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital23 mio100 ax152 hnf100 lsp65 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq195 hnf91 smp100 dnf100 smp100 tf104 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 49ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 4 MotzkinApplications: 12 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 2.4s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-12-19 17:01:08,983 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