./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/loops/for_bounded_loop1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 839c364b 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/loops/for_bounded_loop1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-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 32bit --witnessprinter.graph.data.programhash d362508cc6d10100af1abe34073a764b50319c9e1ae9c7cc9c70a242e3f5c8c4 --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 23:25:17,492 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 23:25:17,493 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 23:25:17,512 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 23:25:17,513 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 23:25:17,513 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 23:25:17,514 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 23:25:17,515 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 23:25:17,516 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 23:25:17,517 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 23:25:17,518 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 23:25:17,518 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 23:25:17,519 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 23:25:17,519 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 23:25:17,520 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 23:25:17,521 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 23:25:17,522 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 23:25:17,522 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 23:25:17,523 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 23:25:17,524 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 23:25:17,525 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 23:25:17,526 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 23:25:17,527 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 23:25:17,528 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 23:25:17,529 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 23:25:17,529 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 23:25:17,530 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 23:25:17,530 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 23:25:17,531 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 23:25:17,531 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 23:25:17,531 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 23:25:17,532 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 23:25:17,533 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 23:25:17,533 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 23:25:17,534 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 23:25:17,534 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 23:25:17,535 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 23:25:17,535 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 23:25:17,535 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 23:25:17,536 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 23:25:17,536 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 23:25:17,537 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-14 23:25:17,551 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 23:25:17,552 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 23:25:17,552 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 23:25:17,552 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 23:25:17,553 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 23:25:17,553 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 23:25:17,553 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 23:25:17,554 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-14 23:25:17,554 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-14 23:25:17,554 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-14 23:25:17,554 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-14 23:25:17,554 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-14 23:25:17,555 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-14 23:25:17,555 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 23:25:17,555 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-14 23:25:17,555 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-14 23:25:17,555 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 23:25:17,556 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-14 23:25:17,556 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 23:25:17,556 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-14 23:25:17,556 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-14 23:25:17,556 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-14 23:25:17,557 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-14 23:25:17,557 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 23:25:17,557 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-14 23:25:17,557 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 23:25:17,557 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-14 23:25:17,558 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 23:25:17,558 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 23:25:17,558 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 23:25:17,558 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 23:25:17,558 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 23:25:17,559 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-14 23:25:17,559 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d362508cc6d10100af1abe34073a764b50319c9e1ae9c7cc9c70a242e3f5c8c4 [2021-12-14 23:25:17,769 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 23:25:17,790 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 23:25:17,791 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 23:25:17,792 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 23:25:17,793 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 23:25:17,794 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops/for_bounded_loop1.c [2021-12-14 23:25:17,839 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9bbab7953/9ce531cb194646789ef28b0d23ef21f6/FLAG5fcc1ecf4 [2021-12-14 23:25:18,143 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 23:25:18,144 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/for_bounded_loop1.c [2021-12-14 23:25:18,148 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9bbab7953/9ce531cb194646789ef28b0d23ef21f6/FLAG5fcc1ecf4 [2021-12-14 23:25:18,563 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9bbab7953/9ce531cb194646789ef28b0d23ef21f6 [2021-12-14 23:25:18,565 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 23:25:18,566 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 23:25:18,569 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 23:25:18,569 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 23:25:18,573 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 23:25:18,573 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:25:18" (1/1) ... [2021-12-14 23:25:18,575 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18eff02c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:25:18, skipping insertion in model container [2021-12-14 23:25:18,575 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:25:18" (1/1) ... [2021-12-14 23:25:18,580 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 23:25:18,590 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 23:25:18,686 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/for_bounded_loop1.c[416,429] [2021-12-14 23:25:18,692 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 23:25:18,698 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 23:25:18,707 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/for_bounded_loop1.c[416,429] [2021-12-14 23:25:18,715 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 23:25:18,726 INFO L208 MainTranslator]: Completed translation [2021-12-14 23:25:18,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:25:18 WrapperNode [2021-12-14 23:25:18,727 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 23:25:18,729 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 23:25:18,729 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 23:25:18,729 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 23:25:18,734 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:25:18" (1/1) ... [2021-12-14 23:25:18,738 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:25:18" (1/1) ... [2021-12-14 23:25:18,752 INFO L137 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 54 [2021-12-14 23:25:18,753 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 23:25:18,753 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 23:25:18,754 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 23:25:18,754 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 23:25:18,759 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:25:18" (1/1) ... [2021-12-14 23:25:18,759 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:25:18" (1/1) ... [2021-12-14 23:25:18,767 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:25:18" (1/1) ... [2021-12-14 23:25:18,768 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:25:18" (1/1) ... [2021-12-14 23:25:18,770 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:25:18" (1/1) ... [2021-12-14 23:25:18,773 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:25:18" (1/1) ... [2021-12-14 23:25:18,774 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:25:18" (1/1) ... [2021-12-14 23:25:18,775 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 23:25:18,780 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 23:25:18,780 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 23:25:18,780 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 23:25:18,781 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:25:18" (1/1) ... [2021-12-14 23:25:18,787 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:25:18,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:25:18,807 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) [2021-12-14 23:25:18,827 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 [2021-12-14 23:25:18,838 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 23:25:18,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 23:25:18,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 23:25:18,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 23:25:18,885 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 23:25:18,886 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 23:25:18,960 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 23:25:18,964 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 23:25:18,964 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-14 23:25:18,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:25:18 BoogieIcfgContainer [2021-12-14 23:25:18,965 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 23:25:18,966 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-14 23:25:18,966 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-14 23:25:18,968 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-14 23:25:18,968 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-14 23:25:18,968 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.12 11:25:18" (1/3) ... [2021-12-14 23:25:18,969 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6cc8a740 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.12 11:25:18, skipping insertion in model container [2021-12-14 23:25:18,969 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-14 23:25:18,969 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:25:18" (2/3) ... [2021-12-14 23:25:18,970 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6cc8a740 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.12 11:25:18, skipping insertion in model container [2021-12-14 23:25:18,970 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-14 23:25:18,970 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:25:18" (3/3) ... [2021-12-14 23:25:18,971 INFO L388 chiAutomizerObserver]: Analyzing ICFG for_bounded_loop1.c [2021-12-14 23:25:19,013 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-14 23:25:19,013 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-14 23:25:19,013 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-14 23:25:19,013 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-14 23:25:19,014 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-14 23:25:19,014 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-14 23:25:19,014 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-14 23:25:19,014 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-14 23:25:19,022 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 19 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 18 states have internal predecessors, (25), 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) [2021-12-14 23:25:19,038 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2021-12-14 23:25:19,038 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:25:19,038 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:25:19,042 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-12-14 23:25:19,042 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-14 23:25:19,042 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-14 23:25:19,043 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 19 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 18 states have internal predecessors, (25), 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) [2021-12-14 23:25:19,044 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2021-12-14 23:25:19,044 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:25:19,044 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:25:19,044 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-12-14 23:25:19,045 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-14 23:25:19,049 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(20, 2);call #Ultimate.allocInit(12, 3); 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet6#1, main_#t~post5#1, main_~i~0#1, main_~x~0#1, main_~y~0#1, main_~n~0#1;main_~i~0#1 := 0;main_~x~0#1 := 0;main_~y~0#1 := 0;main_~n~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 16#L21true assume !!(main_~n~0#1 > 0);main_~i~0#1 := 0; 19#L22-3true [2021-12-14 23:25:19,049 INFO L793 eck$LassoCheckResult]: Loop: 19#L22-3true assume !!(main_~i~0#1 < main_~n~0#1);main_~x~0#1 := main_~x~0#1 - main_~y~0#1;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 == main_~x~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 17#L10true assume !(0 == __VERIFIER_assert_~cond#1); 4#L10-2true assume { :end_inline___VERIFIER_assert } true;main_~y~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 6#L27true assume !!(0 != main_~y~0#1);main_~x~0#1 := main_~x~0#1 + main_~y~0#1;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 != main_~x~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 18#L10-3true assume !(0 == __VERIFIER_assert_~cond#1); 13#L10-5true assume { :end_inline___VERIFIER_assert } true; 11#L22-2true main_#t~post5#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 19#L22-3true [2021-12-14 23:25:19,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:25:19,053 INFO L85 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2021-12-14 23:25:19,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:25:19,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132001307] [2021-12-14 23:25:19,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:25:19,064 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:25:19,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:25:19,121 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:25:19,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:25:19,156 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:25:19,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:25:19,159 INFO L85 PathProgramCache]: Analyzing trace with hash -1470643718, now seen corresponding path program 1 times [2021-12-14 23:25:19,159 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:25:19,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800521875] [2021-12-14 23:25:19,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:25:19,161 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:25:19,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:25:19,199 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:25:19,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:25:19,219 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:25:19,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:25:19,221 INFO L85 PathProgramCache]: Analyzing trace with hash -720609289, now seen corresponding path program 1 times [2021-12-14 23:25:19,221 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:25:19,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063723540] [2021-12-14 23:25:19,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:25:19,222 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:25:19,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:25:19,235 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:25:19,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:25:19,251 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:25:19,449 INFO L210 LassoAnalysis]: Preferences: [2021-12-14 23:25:19,450 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-14 23:25:19,450 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-14 23:25:19,450 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-14 23:25:19,450 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-14 23:25:19,458 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:25:19,458 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-14 23:25:19,459 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-14 23:25:19,459 INFO L133 ssoRankerPreferences]: Filename of dumped script: for_bounded_loop1.c_Iteration1_Loop [2021-12-14 23:25:19,459 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-14 23:25:19,459 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-14 23:25:19,469 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:25:19,476 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:25:19,484 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:25:19,488 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:25:19,559 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-14 23:25:19,560 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-14 23:25:19,561 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:25:19,561 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:25:19,572 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) [2021-12-14 23:25:19,580 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-14 23:25:19,581 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-14 23:25:19,592 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 [2021-12-14 23:25:19,622 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 [2021-12-14 23:25:19,623 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:25:19,623 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:25:19,624 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) [2021-12-14 23:25:19,625 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 [2021-12-14 23:25:19,627 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-14 23:25:19,627 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-14 23:25:19,733 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-14 23:25:19,742 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 [2021-12-14 23:25:19,742 INFO L210 LassoAnalysis]: Preferences: [2021-12-14 23:25:19,742 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-14 23:25:19,742 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-14 23:25:19,743 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-14 23:25:19,743 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-14 23:25:19,743 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:25:19,743 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-14 23:25:19,743 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-14 23:25:19,743 INFO L133 ssoRankerPreferences]: Filename of dumped script: for_bounded_loop1.c_Iteration1_Loop [2021-12-14 23:25:19,743 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-14 23:25:19,743 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-14 23:25:19,744 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:25:19,754 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:25:19,769 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:25:19,774 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:25:19,845 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-14 23:25:19,848 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-14 23:25:19,849 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:25:19,850 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:25:19,850 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) [2021-12-14 23:25:19,851 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 [2021-12-14 23:25:19,853 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 [2021-12-14 23:25:19,859 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:25:19,859 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:25:19,860 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:25:19,860 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:25:19,860 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:25:19,861 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:25:19,862 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:25:19,875 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-14 23:25:19,904 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-12-14 23:25:19,904 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-12-14 23:25:19,905 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:25:19,905 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:25:19,906 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) [2021-12-14 23:25:19,928 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-14 23:25:19,928 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-14 23:25:19,928 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 [2021-12-14 23:25:19,929 INFO L513 LassoAnalysis]: Proved termination. [2021-12-14 23:25:19,929 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_~n~0#1) = -1*ULTIMATE.start_main_~i~0#1 + 1*ULTIMATE.start_main_~n~0#1 Supporting invariants [] [2021-12-14 23:25:19,945 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 [2021-12-14 23:25:19,947 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-14 23:25:19,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:25:19,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:25:19,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-14 23:25:19,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 23:25:19,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:25:19,997 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-14 23:25:19,998 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 23:25:20,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 23:25:20,090 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 [2021-12-14 23:25:20,091 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 19 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 18 states have internal predecessors, (25), 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 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 23:25:20,139 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-12-14 23:25:20,165 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 19 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 18 states have internal predecessors, (25), 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 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 60 states and 73 transitions. Complement of second has 7 states. [2021-12-14 23:25:20,167 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 [2021-12-14 23:25:20,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 23:25:20,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 50 transitions. [2021-12-14 23:25:20,171 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 50 transitions. Stem has 3 letters. Loop has 7 letters. [2021-12-14 23:25:20,172 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-14 23:25:20,172 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 50 transitions. Stem has 10 letters. Loop has 7 letters. [2021-12-14 23:25:20,172 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-14 23:25:20,172 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 50 transitions. Stem has 3 letters. Loop has 14 letters. [2021-12-14 23:25:20,172 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-14 23:25:20,173 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 60 states and 73 transitions. [2021-12-14 23:25:20,175 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-14 23:25:20,177 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 60 states to 0 states and 0 transitions. [2021-12-14 23:25:20,177 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-14 23:25:20,177 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-14 23:25:20,178 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-14 23:25:20,178 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 23:25:20,178 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-14 23:25:20,178 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-14 23:25:20,178 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-14 23:25:20,178 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-14 23:25:20,178 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-12-14 23:25:20,178 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-14 23:25:20,178 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-12-14 23:25:20,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 14.12 11:25:20 BoogieIcfgContainer [2021-12-14 23:25:20,197 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-14 23:25:20,198 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-14 23:25:20,199 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-14 23:25:20,199 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-14 23:25:20,199 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:25:18" (3/4) ... [2021-12-14 23:25:20,201 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-14 23:25:20,201 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-14 23:25:20,203 INFO L158 Benchmark]: Toolchain (without parser) took 1636.05ms. Allocated memory is still 113.2MB. Free memory was 76.6MB in the beginning and 86.6MB in the end (delta: -10.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-14 23:25:20,204 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 113.2MB. Free memory is still 92.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-14 23:25:20,205 INFO L158 Benchmark]: CACSL2BoogieTranslator took 158.14ms. Allocated memory is still 113.2MB. Free memory was 76.4MB in the beginning and 66.8MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-14 23:25:20,206 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.25ms. Allocated memory is still 113.2MB. Free memory was 66.8MB in the beginning and 65.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-14 23:25:20,207 INFO L158 Benchmark]: Boogie Preprocessor took 25.68ms. Allocated memory is still 113.2MB. Free memory was 65.4MB in the beginning and 64.4MB in the end (delta: 974.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-14 23:25:20,210 INFO L158 Benchmark]: RCFGBuilder took 185.38ms. Allocated memory is still 113.2MB. Free memory was 64.2MB in the beginning and 54.8MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-14 23:25:20,210 INFO L158 Benchmark]: BuchiAutomizer took 1231.59ms. Allocated memory is still 113.2MB. Free memory was 54.6MB in the beginning and 87.3MB in the end (delta: -32.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-14 23:25:20,211 INFO L158 Benchmark]: Witness Printer took 3.14ms. Allocated memory is still 113.2MB. Free memory was 87.3MB in the beginning and 86.6MB in the end (delta: 616.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-14 23:25:20,216 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 113.2MB. Free memory is still 92.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 158.14ms. Allocated memory is still 113.2MB. Free memory was 76.4MB in the beginning and 66.8MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.25ms. Allocated memory is still 113.2MB. Free memory was 66.8MB in the beginning and 65.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 25.68ms. Allocated memory is still 113.2MB. Free memory was 65.4MB in the beginning and 64.4MB in the end (delta: 974.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 185.38ms. Allocated memory is still 113.2MB. Free memory was 64.2MB in the beginning and 54.8MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1231.59ms. Allocated memory is still 113.2MB. Free memory was 54.6MB in the beginning and 87.3MB in the end (delta: -32.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.14ms. Allocated memory is still 113.2MB. Free memory was 87.3MB in the beginning and 86.6MB in the end (delta: 616.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * i + n and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.1s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.9s. 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, 32 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 31 mSDsluCounter, 44 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 22 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 22 mSDtfsCounter, 6 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital33 mio100 ax100 hnf100 lsp57 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq205 hnf92 smp100 dnf177 smp100 tf103 neg96 sie106 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 79ms VariablesStem: 0 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-12-14 23:25:20,243 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