./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/NO_03.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version ae007674 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-restricted-15/NO_03.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 57953bf177b77bdcba210d5dce369395d242a617ef951a05d4a0af10ca288ca4 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 09:04:22,784 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 09:04:22,785 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 09:04:22,817 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 09:04:22,818 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 09:04:22,821 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 09:04:22,823 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 09:04:22,828 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 09:04:22,830 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 09:04:22,835 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 09:04:22,837 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 09:04:22,838 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 09:04:22,838 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 09:04:22,840 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 09:04:22,842 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 09:04:22,845 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 09:04:22,848 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 09:04:22,849 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 09:04:22,850 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 09:04:22,852 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 09:04:22,857 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 09:04:22,858 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 09:04:22,858 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 09:04:22,860 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 09:04:22,862 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 09:04:22,863 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 09:04:22,863 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 09:04:22,864 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 09:04:22,865 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 09:04:22,865 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 09:04:22,866 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 09:04:22,867 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 09:04:22,868 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 09:04:22,868 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 09:04:22,869 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 09:04:22,870 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 09:04:22,870 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 09:04:22,870 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 09:04:22,871 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 09:04:22,872 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 09:04:22,872 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 09:04:22,873 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-12-28 09:04:22,909 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 09:04:22,909 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 09:04:22,910 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 09:04:22,910 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 09:04:22,912 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 09:04:22,912 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 09:04:22,912 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 09:04:22,912 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-28 09:04:22,912 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-28 09:04:22,912 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-28 09:04:22,913 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-28 09:04:22,913 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-28 09:04:22,913 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-28 09:04:22,914 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 09:04:22,914 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-28 09:04:22,914 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 09:04:22,914 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 09:04:22,915 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-28 09:04:22,915 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-28 09:04:22,915 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-28 09:04:22,915 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 09:04:22,915 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-28 09:04:22,915 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 09:04:22,916 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-28 09:04:22,923 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 09:04:22,924 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 09:04:22,924 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 09:04:22,924 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 09:04:22,925 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-28 09:04:22,925 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 57953bf177b77bdcba210d5dce369395d242a617ef951a05d4a0af10ca288ca4 [2021-12-28 09:04:23,206 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 09:04:23,228 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 09:04:23,231 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 09:04:23,232 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 09:04:23,232 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 09:04:23,235 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/NO_03.c [2021-12-28 09:04:23,298 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae50a2763/7524a22faca84da6b4f6398c8bfc4dc1/FLAG83a9f419c [2021-12-28 09:04:23,666 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 09:04:23,667 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/NO_03.c [2021-12-28 09:04:23,671 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae50a2763/7524a22faca84da6b4f6398c8bfc4dc1/FLAG83a9f419c [2021-12-28 09:04:24,084 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae50a2763/7524a22faca84da6b4f6398c8bfc4dc1 [2021-12-28 09:04:24,086 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 09:04:24,088 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 09:04:24,089 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 09:04:24,089 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 09:04:24,093 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 09:04:24,094 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 09:04:24" (1/1) ... [2021-12-28 09:04:24,095 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ce9ee81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:04:24, skipping insertion in model container [2021-12-28 09:04:24,095 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 09:04:24" (1/1) ... [2021-12-28 09:04:24,101 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 09:04:24,110 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 09:04:24,205 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 09:04:24,207 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 09:04:24,217 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 09:04:24,225 INFO L208 MainTranslator]: Completed translation [2021-12-28 09:04:24,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:04:24 WrapperNode [2021-12-28 09:04:24,226 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 09:04:24,227 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 09:04:24,227 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 09:04:24,227 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 09:04:24,231 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:04:24" (1/1) ... [2021-12-28 09:04:24,234 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:04:24" (1/1) ... [2021-12-28 09:04:24,244 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 18 [2021-12-28 09:04:24,244 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 09:04:24,245 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 09:04:24,245 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 09:04:24,245 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 09:04:24,257 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:04:24" (1/1) ... [2021-12-28 09:04:24,257 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:04:24" (1/1) ... [2021-12-28 09:04:24,258 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:04:24" (1/1) ... [2021-12-28 09:04:24,258 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:04:24" (1/1) ... [2021-12-28 09:04:24,259 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:04:24" (1/1) ... [2021-12-28 09:04:24,262 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:04:24" (1/1) ... [2021-12-28 09:04:24,262 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:04:24" (1/1) ... [2021-12-28 09:04:24,263 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 09:04:24,264 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 09:04:24,264 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 09:04:24,264 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 09:04:24,265 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:04:24" (1/1) ... [2021-12-28 09:04:24,281 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:04:24,290 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:04:24,300 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) [2021-12-28 09:04:24,326 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 [2021-12-28 09:04:24,342 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 09:04:24,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 09:04:24,390 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 09:04:24,392 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 09:04:24,449 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 09:04:24,454 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 09:04:24,454 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-28 09:04:24,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 09:04:24 BoogieIcfgContainer [2021-12-28 09:04:24,456 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 09:04:24,457 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-28 09:04:24,457 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-28 09:04:24,459 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-28 09:04:24,460 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-28 09:04:24,460 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.12 09:04:24" (1/3) ... [2021-12-28 09:04:24,461 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7481d664 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.12 09:04:24, skipping insertion in model container [2021-12-28 09:04:24,461 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-28 09:04:24,461 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:04:24" (2/3) ... [2021-12-28 09:04:24,462 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7481d664 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.12 09:04:24, skipping insertion in model container [2021-12-28 09:04:24,462 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-28 09:04:24,462 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 09:04:24" (3/3) ... [2021-12-28 09:04:24,463 INFO L388 chiAutomizerObserver]: Analyzing ICFG NO_03.c [2021-12-28 09:04:24,500 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-28 09:04:24,500 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-28 09:04:24,500 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-28 09:04:24,500 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-28 09:04:24,501 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-28 09:04:24,501 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-28 09:04:24,501 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-28 09:04:24,501 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-28 09:04:24,512 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 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) [2021-12-28 09:04:24,525 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-28 09:04:24,526 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:04:24,526 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:04:24,530 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-28 09:04:24,531 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-28 09:04:24,531 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-28 09:04:24,531 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 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) [2021-12-28 09:04:24,532 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-28 09:04:24,533 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:04:24,533 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:04:24,533 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-28 09:04:24,533 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-28 09:04:24,538 INFO L791 eck$LassoCheckResult]: Stem: 7#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_~i~0#1, main_~j~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~i~0#1 := 0; 5#L10-2true [2021-12-28 09:04:24,538 INFO L793 eck$LassoCheckResult]: Loop: 5#L10-2true assume !!(main_~i~0#1 < 100);main_~j~0#1 := 0; 3#L12-2true assume !(main_~j~0#1 < 1); 8#L12-3true main_~i~0#1 := main_~i~0#1; 5#L10-2true [2021-12-28 09:04:24,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:04:24,548 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-12-28 09:04:24,562 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:04:24,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971771610] [2021-12-28 09:04:24,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:04:24,564 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:04:24,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:04:24,627 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:04:24,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:04:24,649 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:04:24,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:04:24,661 INFO L85 PathProgramCache]: Analyzing trace with hash 40944, now seen corresponding path program 1 times [2021-12-28 09:04:24,662 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:04:24,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311591030] [2021-12-28 09:04:24,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:04:24,663 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:04:24,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 09:04:24,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 09:04:24,751 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 09:04:24,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311591030] [2021-12-28 09:04:24,752 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311591030] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 09:04:24,754 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 09:04:24,754 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-28 09:04:24,755 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405152472] [2021-12-28 09:04:24,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 09:04:24,760 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-28 09:04:24,761 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 09:04:24,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 09:04:24,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 09:04:24,792 INFO L87 Difference]: Start difference. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 09:04:24,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 09:04:24,830 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2021-12-28 09:04:24,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 09:04:24,835 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 11 transitions. [2021-12-28 09:04:24,836 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-28 09:04:24,838 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 6 states and 7 transitions. [2021-12-28 09:04:24,839 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-12-28 09:04:24,839 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2021-12-28 09:04:24,839 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 7 transitions. [2021-12-28 09:04:24,840 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 09:04:24,840 INFO L681 BuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2021-12-28 09:04:24,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 7 transitions. [2021-12-28 09:04:24,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2021-12-28 09:04:24,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 5 states have internal predecessors, (7), 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) [2021-12-28 09:04:24,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 7 transitions. [2021-12-28 09:04:24,877 INFO L704 BuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2021-12-28 09:04:24,877 INFO L587 BuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2021-12-28 09:04:24,877 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-28 09:04:24,877 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 7 transitions. [2021-12-28 09:04:24,890 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-28 09:04:24,890 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:04:24,890 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:04:24,891 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-28 09:04:24,891 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-12-28 09:04:24,891 INFO L791 eck$LassoCheckResult]: Stem: 31#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 32#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~i~0#1 := 0; 30#L10-2 [2021-12-28 09:04:24,891 INFO L793 eck$LassoCheckResult]: Loop: 30#L10-2 assume !!(main_~i~0#1 < 100);main_~j~0#1 := 0; 28#L12-2 assume !!(main_~j~0#1 < 1);main_~j~0#1 := 1 + main_~j~0#1; 29#L12-2 assume !(main_~j~0#1 < 1); 33#L12-3 main_~i~0#1 := main_~i~0#1; 30#L10-2 [2021-12-28 09:04:24,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:04:24,892 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2021-12-28 09:04:24,892 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:04:24,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923620223] [2021-12-28 09:04:24,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:04:24,893 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:04:24,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:04:24,896 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:04:24,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:04:24,898 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:04:24,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:04:24,899 INFO L85 PathProgramCache]: Analyzing trace with hash 1271024, now seen corresponding path program 1 times [2021-12-28 09:04:24,899 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:04:24,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668166549] [2021-12-28 09:04:24,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:04:24,899 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:04:24,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:04:24,911 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:04:24,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:04:24,915 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:04:24,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:04:24,916 INFO L85 PathProgramCache]: Analyzing trace with hash 889698226, now seen corresponding path program 1 times [2021-12-28 09:04:24,916 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:04:24,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077256640] [2021-12-28 09:04:24,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:04:24,917 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:04:24,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:04:24,923 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:04:24,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:04:24,927 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:04:25,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.12 09:04:25 BoogieIcfgContainer [2021-12-28 09:04:25,007 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-28 09:04:25,008 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-28 09:04:25,009 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-28 09:04:25,009 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-28 09:04:25,010 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 09:04:24" (3/4) ... [2021-12-28 09:04:25,012 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-12-28 09:04:25,049 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-28 09:04:25,049 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-28 09:04:25,050 INFO L158 Benchmark]: Toolchain (without parser) took 961.90ms. Allocated memory was 52.4MB in the beginning and 67.1MB in the end (delta: 14.7MB). Free memory was 30.1MB in the beginning and 35.6MB in the end (delta: -5.6MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. [2021-12-28 09:04:25,050 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 52.4MB. Free memory was 34.8MB in the beginning and 34.7MB in the end (delta: 39.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-28 09:04:25,051 INFO L158 Benchmark]: CACSL2BoogieTranslator took 137.67ms. Allocated memory is still 52.4MB. Free memory was 29.9MB in the beginning and 35.4MB in the end (delta: -5.5MB). Peak memory consumption was 9.1MB. Max. memory is 16.1GB. [2021-12-28 09:04:25,051 INFO L158 Benchmark]: Boogie Procedure Inliner took 17.25ms. Allocated memory is still 52.4MB. Free memory was 35.2MB in the beginning and 34.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-28 09:04:25,051 INFO L158 Benchmark]: Boogie Preprocessor took 18.41ms. Allocated memory was 52.4MB in the beginning and 67.1MB in the end (delta: 14.7MB). Free memory was 34.0MB in the beginning and 51.4MB in the end (delta: -17.4MB). Peak memory consumption was 2.2MB. Max. memory is 16.1GB. [2021-12-28 09:04:25,052 INFO L158 Benchmark]: RCFGBuilder took 192.44ms. Allocated memory is still 67.1MB. Free memory was 51.4MB in the beginning and 43.4MB in the end (delta: 8.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-28 09:04:25,052 INFO L158 Benchmark]: BuchiAutomizer took 550.77ms. Allocated memory is still 67.1MB. Free memory was 43.4MB in the beginning and 37.2MB in the end (delta: 6.3MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. [2021-12-28 09:04:25,053 INFO L158 Benchmark]: Witness Printer took 40.89ms. Allocated memory is still 67.1MB. Free memory was 37.2MB in the beginning and 35.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-28 09:04:25,058 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 52.4MB. Free memory was 34.8MB in the beginning and 34.7MB in the end (delta: 39.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 137.67ms. Allocated memory is still 52.4MB. Free memory was 29.9MB in the beginning and 35.4MB in the end (delta: -5.5MB). Peak memory consumption was 9.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 17.25ms. Allocated memory is still 52.4MB. Free memory was 35.2MB in the beginning and 34.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 18.41ms. Allocated memory was 52.4MB in the beginning and 67.1MB in the end (delta: 14.7MB). Free memory was 34.0MB in the beginning and 51.4MB in the end (delta: -17.4MB). Peak memory consumption was 2.2MB. Max. memory is 16.1GB. * RCFGBuilder took 192.44ms. Allocated memory is still 67.1MB. Free memory was 51.4MB in the beginning and 43.4MB in the end (delta: 8.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 550.77ms. Allocated memory is still 67.1MB. Free memory was 43.4MB in the beginning and 37.2MB in the end (delta: 6.3MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. * Witness Printer took 40.89ms. Allocated memory is still 67.1MB. Free memory was 37.2MB in the beginning and 35.6MB in the end (delta: 1.5MB). 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 (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.4s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 6 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 15 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 9 mSDtfsCounter, 4 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 10]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {j=1, i=0, \result=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 10]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] int j; [L8] i = 0 Loop: [L10] COND TRUE i < 100 [L11] j = 0 [L12] COND TRUE j < 1 [L13] j = j+1 [L12] COND FALSE !(j < 1) [L15] i = i+0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-12-28 09:04:25,098 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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)