./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-random1d.c --full-output -ea --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-random1d.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 70ea356a4fda57b451264a060e40bb07db2fe648bea4e3256fcecf71a5a8e7b7 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 03:24:47,599 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 03:24:47,601 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 03:24:47,630 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 03:24:47,632 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 03:24:47,634 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 03:24:47,636 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 03:24:47,640 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 03:24:47,641 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 03:24:47,645 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 03:24:47,645 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 03:24:47,647 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 03:24:47,647 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 03:24:47,649 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 03:24:47,651 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 03:24:47,652 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 03:24:47,653 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 03:24:47,654 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 03:24:47,658 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 03:24:47,663 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 03:24:47,664 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 03:24:47,665 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 03:24:47,667 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 03:24:47,667 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 03:24:47,672 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 03:24:47,672 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 03:24:47,673 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 03:24:47,674 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 03:24:47,674 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 03:24:47,675 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 03:24:47,675 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 03:24:47,676 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 03:24:47,677 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 03:24:47,678 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 03:24:47,678 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 03:24:47,679 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 03:24:47,679 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 03:24:47,679 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 03:24:47,679 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 03:24:47,680 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 03:24:47,681 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 03:24:47,681 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-02-21 03:24:47,708 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 03:24:47,708 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 03:24:47,709 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 03:24:47,709 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 03:24:47,710 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 03:24:47,710 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 03:24:47,710 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 03:24:47,710 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 03:24:47,710 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 03:24:47,711 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 03:24:47,711 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 03:24:47,711 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 03:24:47,712 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 03:24:47,712 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 03:24:47,712 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 03:24:47,712 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 03:24:47,712 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 03:24:47,712 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 03:24:47,713 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 03:24:47,713 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 03:24:47,713 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 03:24:47,713 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 03:24:47,713 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 03:24:47,713 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 03:24:47,713 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 03:24:47,714 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 03:24:47,714 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 03:24:47,714 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 03:24:47,715 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 03:24:47,715 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 70ea356a4fda57b451264a060e40bb07db2fe648bea4e3256fcecf71a5a8e7b7 [2022-02-21 03:24:47,898 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 03:24:47,912 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 03:24:47,914 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 03:24:47,915 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 03:24:47,916 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 03:24:47,917 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-random1d.c [2022-02-21 03:24:47,991 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dea523594/ad043db5b0f3459ca9e85d32f92ef26a/FLAG8fe59ba09 [2022-02-21 03:24:48,353 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 03:24:48,354 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-random1d.c [2022-02-21 03:24:48,361 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dea523594/ad043db5b0f3459ca9e85d32f92ef26a/FLAG8fe59ba09 [2022-02-21 03:24:48,373 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dea523594/ad043db5b0f3459ca9e85d32f92ef26a [2022-02-21 03:24:48,375 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 03:24:48,377 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 03:24:48,379 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 03:24:48,379 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 03:24:48,381 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 03:24:48,384 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 03:24:48" (1/1) ... [2022-02-21 03:24:48,385 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65cd27c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:24:48, skipping insertion in model container [2022-02-21 03:24:48,385 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 03:24:48" (1/1) ... [2022-02-21 03:24:48,391 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 03:24:48,400 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 03:24:48,564 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 03:24:48,567 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 03:24:48,598 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 03:24:48,617 INFO L208 MainTranslator]: Completed translation [2022-02-21 03:24:48,619 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:24:48 WrapperNode [2022-02-21 03:24:48,619 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 03:24:48,620 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 03:24:48,620 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 03:24:48,620 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 03:24:48,625 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:24:48" (1/1) ... [2022-02-21 03:24:48,628 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:24:48" (1/1) ... [2022-02-21 03:24:48,638 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 26 [2022-02-21 03:24:48,638 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 03:24:48,639 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 03:24:48,639 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 03:24:48,639 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 03:24:48,644 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:24:48" (1/1) ... [2022-02-21 03:24:48,644 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:24:48" (1/1) ... [2022-02-21 03:24:48,644 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:24:48" (1/1) ... [2022-02-21 03:24:48,645 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:24:48" (1/1) ... [2022-02-21 03:24:48,646 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:24:48" (1/1) ... [2022-02-21 03:24:48,648 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:24:48" (1/1) ... [2022-02-21 03:24:48,649 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:24:48" (1/1) ... [2022-02-21 03:24:48,649 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 03:24:48,650 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 03:24:48,650 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 03:24:48,650 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 03:24:48,651 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:24:48" (1/1) ... [2022-02-21 03:24:48,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:24:48,662 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:24:48,676 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-02-21 03:24:48,700 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-02-21 03:24:48,746 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 03:24:48,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 03:24:48,810 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 03:24:48,818 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 03:24:48,956 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 03:24:48,968 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 03:24:48,973 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-21 03:24:48,975 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 03:24:48 BoogieIcfgContainer [2022-02-21 03:24:48,975 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 03:24:48,976 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 03:24:48,987 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 03:24:48,991 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 03:24:48,992 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 03:24:48,992 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 03:24:48" (1/3) ... [2022-02-21 03:24:48,992 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6459031 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 03:24:48, skipping insertion in model container [2022-02-21 03:24:48,993 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 03:24:48,993 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:24:48" (2/3) ... [2022-02-21 03:24:48,993 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6459031 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 03:24:48, skipping insertion in model container [2022-02-21 03:24:48,993 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 03:24:48,993 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 03:24:48" (3/3) ... [2022-02-21 03:24:48,994 INFO L388 chiAutomizerObserver]: Analyzing ICFG ChawdharyCookGulwaniSagivYang-ESOP2008-random1d.c [2022-02-21 03:24:49,056 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 03:24:49,060 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 03:24:49,060 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 03:24:49,060 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 03:24:49,061 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 03:24:49,061 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 03:24:49,061 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 03:24:49,061 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 03:24:49,094 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 03:24:49,125 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-02-21 03:24:49,125 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 03:24:49,125 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 03:24:49,144 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-02-21 03:24:49,145 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-02-21 03:24:49,145 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 03:24:49,145 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 03:24:49,148 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-02-21 03:24:49,148 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 03:24:49,148 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 03:24:49,149 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-02-21 03:24:49,149 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-02-21 03:24:49,154 INFO L791 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 10#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_#t~nondet3#1, main_~a~0#1, main_~x~0#1, main_~max~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_~max~0#1;main_~a~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~max~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 4#L18true assume main_~max~0#1 > 0;main_~a~0#1 := 0;main_~x~0#1 := 1; 9#L21-2true [2022-02-21 03:24:49,155 INFO L793 eck$LassoCheckResult]: Loop: 9#L21-2true assume !!(main_~x~0#1 <= main_~max~0#1); 5#L22true assume 0 != main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~a~0#1 := 1 + main_~a~0#1; 11#L22-2true main_~x~0#1 := 1 + main_~x~0#1; 9#L21-2true [2022-02-21 03:24:49,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 03:24:49,159 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2022-02-21 03:24:49,167 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 03:24:49,167 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097334214] [2022-02-21 03:24:49,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 03:24:49,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 03:24:49,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:24:49,227 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 03:24:49,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:24:49,248 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 03:24:49,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 03:24:49,251 INFO L85 PathProgramCache]: Analyzing trace with hash 43793, now seen corresponding path program 1 times [2022-02-21 03:24:49,251 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 03:24:49,252 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482123369] [2022-02-21 03:24:49,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 03:24:49,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 03:24:49,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:24:49,268 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 03:24:49,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:24:49,283 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 03:24:49,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 03:24:49,285 INFO L85 PathProgramCache]: Analyzing trace with hash 889513680, now seen corresponding path program 1 times [2022-02-21 03:24:49,285 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 03:24:49,286 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34401749] [2022-02-21 03:24:49,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 03:24:49,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 03:24:49,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:24:49,306 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 03:24:49,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:24:49,328 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 03:24:49,436 INFO L210 LassoAnalysis]: Preferences: [2022-02-21 03:24:49,436 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-02-21 03:24:49,436 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-02-21 03:24:49,436 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-02-21 03:24:49,436 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-02-21 03:24:49,436 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:24:49,436 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-02-21 03:24:49,436 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-02-21 03:24:49,436 INFO L133 ssoRankerPreferences]: Filename of dumped script: ChawdharyCookGulwaniSagivYang-ESOP2008-random1d.c_Iteration1_Loop [2022-02-21 03:24:49,436 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-02-21 03:24:49,437 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-02-21 03:24:49,452 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-02-21 03:24:49,459 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-02-21 03:24:49,466 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-02-21 03:24:49,478 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-02-21 03:24:49,481 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-02-21 03:24:49,582 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-02-21 03:24:49,582 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-02-21 03:24:49,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:24:49,584 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:24:49,604 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-02-21 03:24:49,605 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-02-21 03:24:49,606 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-02-21 03:24:49,606 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-02-21 03:24:49,624 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-02-21 03:24:49,624 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-02-21 03:24:49,642 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2022-02-21 03:24:49,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:24:49,643 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:24:49,644 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-02-21 03:24:49,648 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-02-21 03:24:49,649 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-02-21 03:24:49,649 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-02-21 03:24:49,665 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-02-21 03:24:49,665 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-02-21 03:24:49,681 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 [2022-02-21 03:24:49,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:24:49,682 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:24:49,683 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-02-21 03:24:49,684 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-02-21 03:24:49,686 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-02-21 03:24:49,686 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-02-21 03:24:49,714 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 [2022-02-21 03:24:49,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:24:49,715 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:24:49,716 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-02-21 03:24:49,723 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-02-21 03:24:49,727 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-02-21 03:24:49,727 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-02-21 03:24:49,855 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-02-21 03:24:49,859 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2022-02-21 03:24:49,859 INFO L210 LassoAnalysis]: Preferences: [2022-02-21 03:24:49,859 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-02-21 03:24:49,859 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-02-21 03:24:49,859 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-02-21 03:24:49,859 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-02-21 03:24:49,860 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:24:49,860 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-02-21 03:24:49,860 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-02-21 03:24:49,860 INFO L133 ssoRankerPreferences]: Filename of dumped script: ChawdharyCookGulwaniSagivYang-ESOP2008-random1d.c_Iteration1_Loop [2022-02-21 03:24:49,860 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-02-21 03:24:49,860 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-02-21 03:24:49,861 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-02-21 03:24:49,864 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-02-21 03:24:49,867 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-02-21 03:24:49,872 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-02-21 03:24:49,875 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-02-21 03:24:49,944 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-02-21 03:24:49,948 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-02-21 03:24:49,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:24:49,949 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:24:49,964 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-02-21 03:24:49,965 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-02-21 03:24:49,971 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-02-21 03:24:49,978 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-02-21 03:24:49,978 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-02-21 03:24:49,978 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-02-21 03:24:49,978 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-02-21 03:24:49,981 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-02-21 03:24:49,981 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-02-21 03:24:49,991 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-02-21 03:24:50,007 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-02-21 03:24:50,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:24:50,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:24:50,009 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-02-21 03:24:50,014 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-02-21 03:24:50,015 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-02-21 03:24:50,021 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-02-21 03:24:50,021 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-02-21 03:24:50,021 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-02-21 03:24:50,021 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-02-21 03:24:50,023 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-02-21 03:24:50,023 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-02-21 03:24:50,049 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-02-21 03:24:50,065 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-02-21 03:24:50,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:24:50,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:24:50,067 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-02-21 03:24:50,068 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-02-21 03:24:50,128 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-02-21 03:24:50,134 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-02-21 03:24:50,134 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-02-21 03:24:50,135 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-02-21 03:24:50,135 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-02-21 03:24:50,135 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-02-21 03:24:50,136 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-02-21 03:24:50,136 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-02-21 03:24:50,151 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-02-21 03:24:50,153 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-02-21 03:24:50,153 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-02-21 03:24:50,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:24:50,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:24:50,156 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-02-21 03:24:50,157 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-02-21 03:24:50,158 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-02-21 03:24:50,158 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-02-21 03:24:50,158 INFO L513 LassoAnalysis]: Proved termination. [2022-02-21 03:24:50,159 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~max~0#1, ULTIMATE.start_main_~x~0#1) = 2*ULTIMATE.start_main_~max~0#1 - 2*ULTIMATE.start_main_~x~0#1 + 1 Supporting invariants [] [2022-02-21 03:24:50,177 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-02-21 03:24:50,186 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-02-21 03:24:50,190 INFO L390 LassoCheck]: Loop: "assume !!(main_~x~0#1 <= main_~max~0#1);" "assume 0 != main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~a~0#1 := 1 + main_~a~0#1;" "main_~x~0#1 := 1 + main_~x~0#1;" [2022-02-21 03:24:50,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 03:24:50,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 03:24:50,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 03:24:50,219 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2022-02-21 03:24:50,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 03:24:50,223 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-21 03:24:50,233 INFO L290 TraceCheckUtils]: 0: Hoare triple {20#unseeded} assume { :begin_inline_ULTIMATE.init } true; {20#unseeded} is VALID [2022-02-21 03:24:50,234 INFO L290 TraceCheckUtils]: 1: Hoare triple {20#unseeded} 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_#t~nondet3#1, main_~a~0#1, main_~x~0#1, main_~max~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_~max~0#1;main_~a~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~max~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; {20#unseeded} is VALID [2022-02-21 03:24:50,234 INFO L290 TraceCheckUtils]: 2: Hoare triple {20#unseeded} assume main_~max~0#1 > 0;main_~a~0#1 := 0;main_~x~0#1 := 1; {20#unseeded} is VALID [2022-02-21 03:24:50,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 03:24:50,238 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2022-02-21 03:24:50,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 03:24:50,242 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-21 03:24:50,273 INFO L290 TraceCheckUtils]: 0: Hoare triple {23#(>= oldRank0 (+ (* 2 |ULTIMATE.start_main_~max~0#1|) (* (- 2) |ULTIMATE.start_main_~x~0#1|) 1))} assume !!(main_~x~0#1 <= main_~max~0#1); {44#(and (>= oldRank0 (+ (* |ULTIMATE.start_main_~max~0#1| 2) (* (- 2) |ULTIMATE.start_main_~x~0#1|) 1)) (<= |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~max~0#1|))} is VALID [2022-02-21 03:24:50,274 INFO L290 TraceCheckUtils]: 1: Hoare triple {44#(and (>= oldRank0 (+ (* |ULTIMATE.start_main_~max~0#1| 2) (* (- 2) |ULTIMATE.start_main_~x~0#1|) 1)) (<= |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~max~0#1|))} assume 0 != main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~a~0#1 := 1 + main_~a~0#1; {44#(and (>= oldRank0 (+ (* |ULTIMATE.start_main_~max~0#1| 2) (* (- 2) |ULTIMATE.start_main_~x~0#1|) 1)) (<= |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~max~0#1|))} is VALID [2022-02-21 03:24:50,274 INFO L290 TraceCheckUtils]: 2: Hoare triple {44#(and (>= oldRank0 (+ (* |ULTIMATE.start_main_~max~0#1| 2) (* (- 2) |ULTIMATE.start_main_~x~0#1|) 1)) (<= |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~max~0#1|))} main_~x~0#1 := 1 + main_~x~0#1; {33#(or unseeded (and (>= oldRank0 0) (> oldRank0 (+ (* 2 |ULTIMATE.start_main_~max~0#1|) (* (- 2) |ULTIMATE.start_main_~x~0#1|) 1))))} is VALID [2022-02-21 03:24:50,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 03:24:50,291 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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) [2022-02-21 03:24:50,297 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 6 edges. 6 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 03:24:50,298 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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) Stem has 3 letters. Loop has 3 letters. [2022-02-21 03:24:50,300 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:50,303 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-02-21 03:24:50,304 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 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 2.0) internal successors, (6), 3 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) [2022-02-21 03:24:50,350 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 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 2.0) internal successors, (6), 3 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 25 states and 31 transitions. Complement of second has 7 states. [2022-02-21 03:24:50,350 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 [2022-02-21 03:24:50,351 INFO L123 tractBuchiDifference]: Start testing correctness of buchiDifferenceNCSBLazy3 [2022-02-21 03:24:50,351 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 03:24:50,352 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-02-21 03:24:50,353 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 03:24:50,353 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 03:24:50,353 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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) [2022-02-21 03:24:50,355 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 3 [2022-02-21 03:24:50,355 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 03:24:50,355 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 03:24:50,355 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 31 transitions. [2022-02-21 03:24:50,356 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-02-21 03:24:50,356 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-02-21 03:24:50,358 INFO L70 LassoExtractor]: Start lassoExtractor. Operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 03:24:50,359 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-02-21 03:24:50,359 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 3 examples of accepted words. [2022-02-21 03:24:50,359 INFO L70 LassoExtractor]: Start lassoExtractor. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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) [2022-02-21 03:24:50,361 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 3 [2022-02-21 03:24:50,361 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 2 examples of accepted words. [2022-02-21 03:24:50,361 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 25 states and 31 transitions. cyclomatic complexity: 7 [2022-02-21 03:24:50,361 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 31 transitions. cyclomatic complexity: 7 [2022-02-21 03:24:50,361 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-02-21 03:24:50,361 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 0 examples of accepted words. [2022-02-21 03:24:50,362 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 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) Stem has 3 letters. Loop has 3 letters. [2022-02-21 03:24:50,362 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:50,362 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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) Stem has 3 letters. Loop has 3 letters. [2022-02-21 03:24:50,362 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:50,362 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 25 states and 31 transitions. cyclomatic complexity: 7 Stem has 3 letters. Loop has 3 letters. [2022-02-21 03:24:50,363 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:50,363 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 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) Stem has 1 letters. Loop has 2 letters. [2022-02-21 03:24:50,363 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:50,363 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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) Stem has 1 letters. Loop has 2 letters. [2022-02-21 03:24:50,363 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:50,364 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 25 states and 31 transitions. cyclomatic complexity: 7 Stem has 1 letters. Loop has 2 letters. [2022-02-21 03:24:50,364 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:50,364 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 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) Stem has 25 letters. Loop has 25 letters. [2022-02-21 03:24:50,364 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:50,364 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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) Stem has 25 letters. Loop has 25 letters. [2022-02-21 03:24:50,364 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:50,365 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 25 states and 31 transitions. cyclomatic complexity: 7 Stem has 25 letters. Loop has 25 letters. [2022-02-21 03:24:50,365 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:50,365 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 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) Stem has 10 letters. Loop has 10 letters. [2022-02-21 03:24:50,365 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:50,365 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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) Stem has 10 letters. Loop has 10 letters. [2022-02-21 03:24:50,365 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:50,366 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 25 states and 31 transitions. cyclomatic complexity: 7 Stem has 10 letters. Loop has 10 letters. [2022-02-21 03:24:50,366 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:50,366 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 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) Stem has 5 letters. Loop has 5 letters. [2022-02-21 03:24:50,366 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:50,366 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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) Stem has 5 letters. Loop has 5 letters. [2022-02-21 03:24:50,366 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:50,367 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 25 states and 31 transitions. cyclomatic complexity: 7 Stem has 5 letters. Loop has 5 letters. [2022-02-21 03:24:50,367 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:50,367 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 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) Stem has 4 letters. Loop has 3 letters. [2022-02-21 03:24:50,367 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:50,367 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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) Stem has 4 letters. Loop has 3 letters. [2022-02-21 03:24:50,368 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:50,368 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 25 states and 31 transitions. cyclomatic complexity: 7 Stem has 4 letters. Loop has 3 letters. [2022-02-21 03:24:50,368 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:50,368 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 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) Stem has 3 letters. Loop has 3 letters. [2022-02-21 03:24:50,368 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:50,369 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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) Stem has 3 letters. Loop has 3 letters. [2022-02-21 03:24:50,369 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:50,369 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 25 states and 31 transitions. cyclomatic complexity: 7 Stem has 3 letters. Loop has 3 letters. [2022-02-21 03:24:50,369 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:50,369 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 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) Stem has 5 letters. Loop has 3 letters. [2022-02-21 03:24:50,370 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:50,370 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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) Stem has 5 letters. Loop has 3 letters. [2022-02-21 03:24:50,370 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:50,370 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 25 states and 31 transitions. cyclomatic complexity: 7 Stem has 5 letters. Loop has 3 letters. [2022-02-21 03:24:50,370 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:50,371 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 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) Stem has 2 letters. Loop has 1 letters. [2022-02-21 03:24:50,371 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:50,371 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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) Stem has 2 letters. Loop has 1 letters. [2022-02-21 03:24:50,371 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:50,371 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 25 states and 31 transitions. cyclomatic complexity: 7 Stem has 2 letters. Loop has 1 letters. [2022-02-21 03:24:50,371 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:50,372 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 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) Stem has 1 letters. Loop has 2 letters. [2022-02-21 03:24:50,372 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:50,372 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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) Stem has 1 letters. Loop has 2 letters. [2022-02-21 03:24:50,372 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:50,372 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 25 states and 31 transitions. cyclomatic complexity: 7 Stem has 1 letters. Loop has 2 letters. [2022-02-21 03:24:50,372 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:50,372 INFO L161 tractBuchiDifference]: Finished testing correctness of buchiDifferenceNCSBLazy3 [2022-02-21 03:24:50,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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) [2022-02-21 03:24:50,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 19 transitions. [2022-02-21 03:24:50,378 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 3 letters. Loop has 3 letters. [2022-02-21 03:24:50,378 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:50,378 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 6 letters. Loop has 3 letters. [2022-02-21 03:24:50,378 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:50,378 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 3 letters. Loop has 6 letters. [2022-02-21 03:24:50,378 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:50,379 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 31 transitions. cyclomatic complexity: 7 [2022-02-21 03:24:50,382 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-02-21 03:24:50,403 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 0 states and 0 transitions. [2022-02-21 03:24:50,404 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-02-21 03:24:50,404 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-02-21 03:24:50,405 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-02-21 03:24:50,405 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 03:24:50,405 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-02-21 03:24:50,405 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-02-21 03:24:50,405 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-02-21 03:24:50,405 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 03:24:50,406 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-02-21 03:24:50,406 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-02-21 03:24:50,406 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-02-21 03:24:50,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 03:24:50 BoogieIcfgContainer [2022-02-21 03:24:50,410 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 03:24:50,411 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 03:24:50,411 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 03:24:50,411 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 03:24:50,411 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 03:24:48" (3/4) ... [2022-02-21 03:24:50,413 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-02-21 03:24:50,413 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 03:24:50,414 INFO L158 Benchmark]: Toolchain (without parser) took 2037.44ms. Allocated memory was 94.4MB in the beginning and 153.1MB in the end (delta: 58.7MB). Free memory was 61.9MB in the beginning and 127.9MB in the end (delta: -66.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 03:24:50,415 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 94.4MB. Free memory was 51.2MB in the beginning and 51.2MB in the end (delta: 45.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 03:24:50,417 INFO L158 Benchmark]: CACSL2BoogieTranslator took 239.75ms. Allocated memory is still 94.4MB. Free memory was 61.7MB in the beginning and 71.7MB in the end (delta: -10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-02-21 03:24:50,417 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.45ms. Allocated memory is still 94.4MB. Free memory was 71.7MB in the beginning and 70.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 03:24:50,418 INFO L158 Benchmark]: Boogie Preprocessor took 10.49ms. Allocated memory is still 94.4MB. Free memory was 70.2MB in the beginning and 69.4MB in the end (delta: 851.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 03:24:50,418 INFO L158 Benchmark]: RCFGBuilder took 325.20ms. Allocated memory is still 94.4MB. Free memory was 69.4MB in the beginning and 60.7MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-02-21 03:24:50,419 INFO L158 Benchmark]: BuchiAutomizer took 1434.68ms. Allocated memory was 94.4MB in the beginning and 153.1MB in the end (delta: 58.7MB). Free memory was 60.7MB in the beginning and 127.9MB in the end (delta: -67.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 03:24:50,419 INFO L158 Benchmark]: Witness Printer took 2.69ms. Allocated memory is still 153.1MB. Free memory was 127.9MB in the beginning and 127.9MB in the end (delta: 73.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 03:24:50,420 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 [2022-02-21 03:24:50,424 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 94.4MB. Free memory was 51.2MB in the beginning and 51.2MB in the end (delta: 45.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 239.75ms. Allocated memory is still 94.4MB. Free memory was 61.7MB in the beginning and 71.7MB in the end (delta: -10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 18.45ms. Allocated memory is still 94.4MB. Free memory was 71.7MB in the beginning and 70.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 10.49ms. Allocated memory is still 94.4MB. Free memory was 70.2MB in the beginning and 69.4MB in the end (delta: 851.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 325.20ms. Allocated memory is still 94.4MB. Free memory was 69.4MB in the beginning and 60.7MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1434.68ms. Allocated memory was 94.4MB in the beginning and 153.1MB in the end (delta: 58.7MB). Free memory was 60.7MB in the beginning and 127.9MB in the end (delta: -67.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.69ms. Allocated memory is still 153.1MB. Free memory was 127.9MB in the beginning and 127.9MB in the end (delta: 73.9kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function 2 * max + -2 * x + 1 and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.3s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 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, 13 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 13 mSDsluCounter, 20 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 12 mSDtfsCounter, 6 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital19 mio100 ax163 hnf100 lsp32 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 43ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-02-21 03:24:50,451 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