./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/MinusUserDefined.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e8d55036 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/MinusUserDefined.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 096bafbba8d51323312e8aef69baa45c66c17c65b2ec8717873d6ff292690721 --- Real Ultimate output --- This is Ultimate 0.2.2-?-e8d5503-m [2023-02-15 23:15:28,713 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-15 23:15:28,715 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-15 23:15:28,751 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-15 23:15:28,751 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-15 23:15:28,754 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-15 23:15:28,756 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-15 23:15:28,758 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-15 23:15:28,759 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-15 23:15:28,761 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-15 23:15:28,765 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-15 23:15:28,766 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-15 23:15:28,766 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-15 23:15:28,768 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-15 23:15:28,769 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-15 23:15:28,770 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-15 23:15:28,771 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-15 23:15:28,771 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-15 23:15:28,773 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-15 23:15:28,774 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-15 23:15:28,778 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-15 23:15:28,779 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-15 23:15:28,780 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-15 23:15:28,780 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-15 23:15:28,784 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-15 23:15:28,784 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-15 23:15:28,785 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-15 23:15:28,786 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-15 23:15:28,787 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-15 23:15:28,788 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-15 23:15:28,788 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-15 23:15:28,788 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-15 23:15:28,789 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-15 23:15:28,790 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-15 23:15:28,791 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-15 23:15:28,791 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-15 23:15:28,791 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-15 23:15:28,792 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-15 23:15:28,792 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-15 23:15:28,793 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-15 23:15:28,794 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-15 23:15:28,795 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-02-15 23:15:28,819 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-15 23:15:28,820 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-15 23:15:28,820 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-15 23:15:28,820 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-15 23:15:28,821 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-15 23:15:28,821 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-15 23:15:28,821 INFO L138 SettingsManager]: * Use SBE=true [2023-02-15 23:15:28,822 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-02-15 23:15:28,822 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-02-15 23:15:28,822 INFO L138 SettingsManager]: * Use old map elimination=false [2023-02-15 23:15:28,822 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2023-02-15 23:15:28,823 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2023-02-15 23:15:28,823 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-02-15 23:15:28,823 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-15 23:15:28,823 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-15 23:15:28,823 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-15 23:15:28,823 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-15 23:15:28,824 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-02-15 23:15:28,824 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-02-15 23:15:28,824 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-02-15 23:15:28,824 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-15 23:15:28,824 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-02-15 23:15:28,824 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-15 23:15:28,824 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-02-15 23:15:28,825 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-15 23:15:28,825 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-15 23:15:28,825 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-15 23:15:28,825 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-15 23:15:28,827 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-02-15 23:15:28,828 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 096bafbba8d51323312e8aef69baa45c66c17c65b2ec8717873d6ff292690721 [2023-02-15 23:15:29,023 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-15 23:15:29,036 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-15 23:15:29,038 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-15 23:15:29,039 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-15 23:15:29,045 INFO L275 PluginConnector]: CDTParser initialized [2023-02-15 23:15:29,046 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/MinusUserDefined.c [2023-02-15 23:15:30,133 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-15 23:15:30,248 INFO L351 CDTParser]: Found 1 translation units. [2023-02-15 23:15:30,248 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/MinusUserDefined.c [2023-02-15 23:15:30,252 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/249b3aede/10f10c53756542cca6da28f9c5fcb0f7/FLAG6bf880613 [2023-02-15 23:15:30,262 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/249b3aede/10f10c53756542cca6da28f9c5fcb0f7 [2023-02-15 23:15:30,264 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-15 23:15:30,265 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-15 23:15:30,266 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-15 23:15:30,266 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-15 23:15:30,269 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-15 23:15:30,269 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 11:15:30" (1/1) ... [2023-02-15 23:15:30,270 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46d37154 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:15:30, skipping insertion in model container [2023-02-15 23:15:30,270 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 11:15:30" (1/1) ... [2023-02-15 23:15:30,275 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-15 23:15:30,283 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-15 23:15:30,364 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 23:15:30,367 INFO L203 MainTranslator]: Completed pre-run [2023-02-15 23:15:30,376 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 23:15:30,384 INFO L208 MainTranslator]: Completed translation [2023-02-15 23:15:30,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:15:30 WrapperNode [2023-02-15 23:15:30,385 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-15 23:15:30,385 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-15 23:15:30,385 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-15 23:15:30,386 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-15 23:15:30,390 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:15:30" (1/1) ... [2023-02-15 23:15:30,393 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:15:30" (1/1) ... [2023-02-15 23:15:30,404 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 30 [2023-02-15 23:15:30,404 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-15 23:15:30,405 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-15 23:15:30,405 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-15 23:15:30,405 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-15 23:15:30,410 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:15:30" (1/1) ... [2023-02-15 23:15:30,410 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:15:30" (1/1) ... [2023-02-15 23:15:30,411 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:15:30" (1/1) ... [2023-02-15 23:15:30,411 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:15:30" (1/1) ... [2023-02-15 23:15:30,412 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:15:30" (1/1) ... [2023-02-15 23:15:30,414 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:15:30" (1/1) ... [2023-02-15 23:15:30,415 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:15:30" (1/1) ... [2023-02-15 23:15:30,415 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:15:30" (1/1) ... [2023-02-15 23:15:30,416 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-15 23:15:30,416 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-15 23:15:30,416 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-15 23:15:30,417 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-15 23:15:30,417 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:15:30" (1/1) ... [2023-02-15 23:15:30,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:15:30,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:15:30,441 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-15 23:15:30,443 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-02-15 23:15:30,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-15 23:15:30,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-15 23:15:30,517 INFO L235 CfgBuilder]: Building ICFG [2023-02-15 23:15:30,519 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-15 23:15:30,576 INFO L276 CfgBuilder]: Performing block encoding [2023-02-15 23:15:30,580 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-15 23:15:30,580 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2023-02-15 23:15:30,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 11:15:30 BoogieIcfgContainer [2023-02-15 23:15:30,582 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-15 23:15:30,583 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-02-15 23:15:30,583 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2023-02-15 23:15:30,585 INFO L275 PluginConnector]: BuchiAutomizer initialized [2023-02-15 23:15:30,585 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-15 23:15:30,586 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.02 11:15:30" (1/3) ... [2023-02-15 23:15:30,586 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@68f9607e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.02 11:15:30, skipping insertion in model container [2023-02-15 23:15:30,586 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-15 23:15:30,587 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:15:30" (2/3) ... [2023-02-15 23:15:30,587 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@68f9607e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.02 11:15:30, skipping insertion in model container [2023-02-15 23:15:30,587 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-15 23:15:30,587 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 11:15:30" (3/3) ... [2023-02-15 23:15:30,588 INFO L332 chiAutomizerObserver]: Analyzing ICFG MinusUserDefined.c [2023-02-15 23:15:30,627 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-02-15 23:15:30,627 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-02-15 23:15:30,627 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-02-15 23:15:30,627 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-02-15 23:15:30,627 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-02-15 23:15:30,627 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-02-15 23:15:30,627 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-02-15 23:15:30,628 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-02-15 23:15:30,631 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 23:15:30,641 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 3 [2023-02-15 23:15:30,642 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-15 23:15:30,642 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-15 23:15:30,645 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-15 23:15:30,645 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-02-15 23:15:30,645 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-02-15 23:15:30,646 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 23:15:30,647 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 3 [2023-02-15 23:15:30,647 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-15 23:15:30,647 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-15 23:15:30,647 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-15 23:15:30,647 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-02-15 23:15:30,654 INFO L748 eck$LassoCheckResult]: Stem: 7#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1, main_~res~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~res~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~res~0#1 := 0; 6#L13-2true [2023-02-15 23:15:30,655 INFO L750 eck$LassoCheckResult]: Loop: 6#L13-2true assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0);main_~x~0#1 := main_~x~0#1 - 1;main_~y~0#1 := main_~y~0#1 - 1; 6#L13-2true [2023-02-15 23:15:30,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 23:15:30,660 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-02-15 23:15:30,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 23:15:30,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087136982] [2023-02-15 23:15:30,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 23:15:30,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 23:15:30,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 23:15:30,720 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 23:15:30,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 23:15:30,737 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 23:15:30,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 23:15:30,741 INFO L85 PathProgramCache]: Analyzing trace with hash 42, now seen corresponding path program 1 times [2023-02-15 23:15:30,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 23:15:30,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243214308] [2023-02-15 23:15:30,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 23:15:30,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 23:15:30,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 23:15:30,756 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 23:15:30,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 23:15:30,764 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 23:15:30,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 23:15:30,766 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2023-02-15 23:15:30,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 23:15:30,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637018323] [2023-02-15 23:15:30,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 23:15:30,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 23:15:30,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 23:15:30,782 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 23:15:30,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 23:15:30,788 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 23:15:30,852 INFO L210 LassoAnalysis]: Preferences: [2023-02-15 23:15:30,852 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-15 23:15:30,853 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-15 23:15:30,853 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-15 23:15:30,853 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-15 23:15:30,853 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:15:30,853 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-15 23:15:30,853 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-15 23:15:30,853 INFO L133 ssoRankerPreferences]: Filename of dumped script: MinusUserDefined.c_Iteration1_Loop [2023-02-15 23:15:30,853 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-15 23:15:30,854 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-15 23:15:30,864 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 23:15:30,872 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 23:15:30,875 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 23:15:30,881 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 23:15:30,931 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-15 23:15:30,932 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-15 23:15:30,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:15:30,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:15:30,936 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-15 23:15:30,937 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-02-15 23:15:30,939 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 23:15:30,939 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 23:15:30,963 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-15 23:15:30,963 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-15 23:15:30,991 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-02-15 23:15:30,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:15:30,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:15:30,995 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-15 23:15:31,011 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-02-15 23:15:31,012 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 23:15:31,012 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 23:15:31,027 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-15 23:15:31,028 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-15 23:15:31,048 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2023-02-15 23:15:31,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:15:31,049 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:15:31,050 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-15 23:15:31,082 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-02-15 23:15:31,085 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 23:15:31,085 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 23:15:31,110 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-02-15 23:15:31,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:15:31,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:15:31,112 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-15 23:15:31,114 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-02-15 23:15:31,115 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-15 23:15:31,115 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 23:15:31,138 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-15 23:15:31,141 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-02-15 23:15:31,142 INFO L210 LassoAnalysis]: Preferences: [2023-02-15 23:15:31,142 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-15 23:15:31,142 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-15 23:15:31,142 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-15 23:15:31,142 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-15 23:15:31,142 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:15:31,142 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-15 23:15:31,142 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-15 23:15:31,169 INFO L133 ssoRankerPreferences]: Filename of dumped script: MinusUserDefined.c_Iteration1_Loop [2023-02-15 23:15:31,169 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-15 23:15:31,169 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-15 23:15:31,171 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 23:15:31,182 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 23:15:31,188 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 23:15:31,195 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 23:15:31,268 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-15 23:15:31,271 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-15 23:15:31,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:15:31,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:15:31,291 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-15 23:15:31,293 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-02-15 23:15:31,296 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-15 23:15:31,303 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 23:15:31,304 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 23:15:31,304 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 23:15:31,304 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 23:15:31,309 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-15 23:15:31,310 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-15 23:15:31,328 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-15 23:15:31,332 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-02-15 23:15:31,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:15:31,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:15:31,333 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-15 23:15:31,334 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-02-15 23:15:31,336 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-15 23:15:31,342 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 23:15:31,343 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 23:15:31,343 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 23:15:31,343 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 23:15:31,346 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-15 23:15:31,346 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-15 23:15:31,357 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-15 23:15:31,361 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-02-15 23:15:31,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:15:31,361 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:15:31,362 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-15 23:15:31,363 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-02-15 23:15:31,365 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-15 23:15:31,372 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 23:15:31,372 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-15 23:15:31,372 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 23:15:31,372 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 23:15:31,372 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 23:15:31,373 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-15 23:15:31,373 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-15 23:15:31,382 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-15 23:15:31,387 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-15 23:15:31,388 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-15 23:15:31,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:15:31,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:15:31,425 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-15 23:15:31,427 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-02-15 23:15:31,429 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-15 23:15:31,429 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-15 23:15:31,429 INFO L513 LassoAnalysis]: Proved termination. [2023-02-15 23:15:31,429 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2023-02-15 23:15:31,433 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-02-15 23:15:31,435 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-15 23:15:31,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 23:15:31,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 23:15:31,463 INFO L263 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-15 23:15:31,464 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 23:15:31,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 23:15:31,474 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-15 23:15:31,475 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 23:15:31,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 23:15:31,509 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-02-15 23:15:31,510 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 1.5) 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) [2023-02-15 23:15:31,549 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 2 states, 2 states have (on average 1.5) 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) Result 24 states and 40 transitions. Complement of second has 5 states. [2023-02-15 23:15:31,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-02-15 23:15:31,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 1.5) 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) [2023-02-15 23:15:31,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 26 transitions. [2023-02-15 23:15:31,560 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 2 letters. Loop has 1 letters. [2023-02-15 23:15:31,561 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 23:15:31,561 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 3 letters. Loop has 1 letters. [2023-02-15 23:15:31,561 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 23:15:31,561 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 2 letters. Loop has 2 letters. [2023-02-15 23:15:31,562 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 23:15:31,562 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 40 transitions. [2023-02-15 23:15:31,565 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-15 23:15:31,568 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 10 states and 17 transitions. [2023-02-15 23:15:31,568 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2023-02-15 23:15:31,568 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2023-02-15 23:15:31,569 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 17 transitions. [2023-02-15 23:15:31,569 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-15 23:15:31,569 INFO L218 hiAutomatonCegarLoop]: Abstraction has 10 states and 17 transitions. [2023-02-15 23:15:31,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 17 transitions. [2023-02-15 23:15:31,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2023-02-15 23:15:31,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 23:15:31,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 16 transitions. [2023-02-15 23:15:31,585 INFO L240 hiAutomatonCegarLoop]: Abstraction has 9 states and 16 transitions. [2023-02-15 23:15:31,585 INFO L428 stractBuchiCegarLoop]: Abstraction has 9 states and 16 transitions. [2023-02-15 23:15:31,585 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-02-15 23:15:31,586 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 16 transitions. [2023-02-15 23:15:31,586 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-15 23:15:31,586 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-15 23:15:31,586 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-15 23:15:31,586 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-02-15 23:15:31,586 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-15 23:15:31,587 INFO L748 eck$LassoCheckResult]: Stem: 70#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 71#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1, main_~res~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~res~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~res~0#1 := 0; 68#L13-2 assume !(main_~x~0#1 > 0 && main_~y~0#1 > 0); 64#L21-3 [2023-02-15 23:15:31,587 INFO L750 eck$LassoCheckResult]: Loop: 64#L21-3 assume !!(main_~x~0#1 > 0);main_~y~0#1 := 1 + main_~y~0#1;main_~res~0#1 := 1 + main_~res~0#1; 65#L21-2 assume !(main_~x~0#1 > 0 && main_~y~0#1 > 0); 64#L21-3 [2023-02-15 23:15:31,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 23:15:31,587 INFO L85 PathProgramCache]: Analyzing trace with hash 29862, now seen corresponding path program 1 times [2023-02-15 23:15:31,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 23:15:31,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122399809] [2023-02-15 23:15:31,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 23:15:31,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 23:15:31,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 23:15:31,593 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 23:15:31,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 23:15:31,596 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 23:15:31,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 23:15:31,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1672, now seen corresponding path program 1 times [2023-02-15 23:15:31,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 23:15:31,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141095311] [2023-02-15 23:15:31,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 23:15:31,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 23:15:31,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 23:15:31,601 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 23:15:31,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 23:15:31,603 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 23:15:31,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 23:15:31,604 INFO L85 PathProgramCache]: Analyzing trace with hash 28698093, now seen corresponding path program 1 times [2023-02-15 23:15:31,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 23:15:31,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743672885] [2023-02-15 23:15:31,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 23:15:31,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 23:15:31,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 23:15:31,608 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 23:15:31,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 23:15:31,611 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 23:15:31,637 INFO L210 LassoAnalysis]: Preferences: [2023-02-15 23:15:31,637 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-15 23:15:31,637 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-15 23:15:31,637 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-15 23:15:31,637 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-15 23:15:31,637 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:15:31,637 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-15 23:15:31,637 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-15 23:15:31,637 INFO L133 ssoRankerPreferences]: Filename of dumped script: MinusUserDefined.c_Iteration2_Loop [2023-02-15 23:15:31,638 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-15 23:15:31,638 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-15 23:15:31,639 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 23:15:31,641 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 23:15:31,643 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 23:15:31,646 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 23:15:31,650 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 23:15:31,681 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-15 23:15:31,682 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-15 23:15:31,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:15:31,682 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:15:31,683 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-15 23:15:31,685 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-02-15 23:15:31,686 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 23:15:31,686 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 23:15:31,713 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-15 23:15:31,713 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-15 23:15:31,717 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-02-15 23:15:31,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:15:31,718 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:15:31,718 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-15 23:15:31,721 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-02-15 23:15:31,722 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 23:15:31,722 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 23:15:31,743 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-15 23:15:31,743 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=1} Honda state: {ULTIMATE.start_main_~x~0#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-15 23:15:31,749 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-02-15 23:15:31,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:15:31,750 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:15:31,750 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-15 23:15:31,751 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-02-15 23:15:31,754 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 23:15:31,754 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 23:15:31,764 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-02-15 23:15:31,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:15:31,765 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:15:31,766 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-15 23:15:31,766 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-02-15 23:15:31,769 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-15 23:15:31,769 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 23:15:31,788 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-15 23:15:31,788 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~res~0#1=0} Honda state: {ULTIMATE.start_main_~res~0#1=0} Generalized eigenvectors: [{ULTIMATE.start_main_~res~0#1=7}, {ULTIMATE.start_main_~res~0#1=-7}, {ULTIMATE.start_main_~res~0#1=1}] Lambdas: [2, 1, 1] Nus: [1, 0] [2023-02-15 23:15:31,792 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-02-15 23:15:31,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:15:31,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:15:31,793 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-15 23:15:31,794 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-02-15 23:15:31,796 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 23:15:31,796 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 23:15:31,815 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2023-02-15 23:15:31,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:15:31,815 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:15:31,816 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-15 23:15:31,818 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-02-15 23:15:31,819 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-15 23:15:31,820 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 23:15:31,878 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-15 23:15:31,883 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2023-02-15 23:15:31,883 INFO L210 LassoAnalysis]: Preferences: [2023-02-15 23:15:31,883 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-15 23:15:31,883 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-15 23:15:31,883 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-15 23:15:31,883 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-15 23:15:31,884 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:15:31,884 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-15 23:15:31,884 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-15 23:15:31,884 INFO L133 ssoRankerPreferences]: Filename of dumped script: MinusUserDefined.c_Iteration2_Loop [2023-02-15 23:15:31,884 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-15 23:15:31,884 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-15 23:15:31,885 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 23:15:31,888 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 23:15:31,891 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 23:15:31,893 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 23:15:31,898 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 23:15:31,933 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-15 23:15:31,933 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-15 23:15:31,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:15:31,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:15:31,934 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-15 23:15:31,937 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-02-15 23:15:31,938 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-15 23:15:31,945 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 23:15:31,945 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-15 23:15:31,945 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 23:15:31,945 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 23:15:31,945 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 23:15:31,946 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-15 23:15:31,946 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-15 23:15:31,961 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-15 23:15:31,976 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2023-02-15 23:15:31,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:15:31,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:15:31,979 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-15 23:15:31,981 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-02-15 23:15:31,982 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-15 23:15:31,989 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 23:15:31,989 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-15 23:15:31,989 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 23:15:31,989 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 23:15:31,989 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 23:15:31,990 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-15 23:15:31,990 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-15 23:15:32,001 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-15 23:15:32,018 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2023-02-15 23:15:32,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:15:32,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:15:32,020 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-15 23:15:32,033 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-02-15 23:15:32,034 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-15 23:15:32,040 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 23:15:32,040 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 23:15:32,041 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 23:15:32,041 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 23:15:32,042 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-15 23:15:32,043 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-15 23:15:32,058 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-15 23:15:32,063 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2023-02-15 23:15:32,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:15:32,064 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:15:32,065 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-15 23:15:32,067 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-02-15 23:15:32,068 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-15 23:15:32,075 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 23:15:32,075 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-15 23:15:32,075 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 23:15:32,075 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 23:15:32,075 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 23:15:32,076 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-15 23:15:32,076 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-15 23:15:32,091 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-15 23:15:32,093 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-15 23:15:32,093 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-15 23:15:32,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:15:32,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:15:32,096 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-15 23:15:32,101 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-15 23:15:32,102 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-15 23:15:32,102 INFO L513 LassoAnalysis]: Proved termination. [2023-02-15 23:15:32,102 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = -1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2023-02-15 23:15:32,125 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-02-15 23:15:32,125 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2023-02-15 23:15:32,126 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-15 23:15:32,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 23:15:32,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 23:15:32,141 INFO L263 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-15 23:15:32,141 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 23:15:32,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 23:15:32,146 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-15 23:15:32,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 23:15:32,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 23:15:32,169 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-02-15 23:15:32,169 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 16 transitions. cyclomatic complexity: 10 Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 23:15:32,184 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 16 transitions. cyclomatic complexity: 10. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 23 states and 35 transitions. Complement of second has 7 states. [2023-02-15 23:15:32,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-02-15 23:15:32,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 23:15:32,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2023-02-15 23:15:32,186 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 3 letters. Loop has 2 letters. [2023-02-15 23:15:32,186 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 23:15:32,186 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 5 letters. Loop has 2 letters. [2023-02-15 23:15:32,186 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 23:15:32,186 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 3 letters. Loop has 4 letters. [2023-02-15 23:15:32,186 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 23:15:32,187 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 35 transitions. [2023-02-15 23:15:32,187 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-15 23:15:32,188 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 16 states and 24 transitions. [2023-02-15 23:15:32,188 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2023-02-15 23:15:32,188 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2023-02-15 23:15:32,188 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 24 transitions. [2023-02-15 23:15:32,188 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-15 23:15:32,188 INFO L218 hiAutomatonCegarLoop]: Abstraction has 16 states and 24 transitions. [2023-02-15 23:15:32,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 24 transitions. [2023-02-15 23:15:32,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2023-02-15 23:15:32,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.5) internal successors, (24), 15 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 23:15:32,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 24 transitions. [2023-02-15 23:15:32,190 INFO L240 hiAutomatonCegarLoop]: Abstraction has 16 states and 24 transitions. [2023-02-15 23:15:32,190 INFO L428 stractBuchiCegarLoop]: Abstraction has 16 states and 24 transitions. [2023-02-15 23:15:32,190 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-02-15 23:15:32,190 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 24 transitions. [2023-02-15 23:15:32,191 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-15 23:15:32,191 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-15 23:15:32,191 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-15 23:15:32,191 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1] [2023-02-15 23:15:32,191 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-15 23:15:32,191 INFO L748 eck$LassoCheckResult]: Stem: 141#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 142#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1, main_~res~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~res~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~res~0#1 := 0; 138#L13-2 assume !(main_~x~0#1 > 0 && main_~y~0#1 > 0); 139#L21-3 assume !!(main_~x~0#1 > 0);main_~y~0#1 := 1 + main_~y~0#1;main_~res~0#1 := 1 + main_~res~0#1; 149#L21-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0);main_~x~0#1 := main_~x~0#1 - 1;main_~y~0#1 := main_~y~0#1 - 1; 146#L21-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0);main_~x~0#1 := main_~x~0#1 - 1;main_~y~0#1 := main_~y~0#1 - 1; 144#L21-2 assume !(main_~x~0#1 > 0 && main_~y~0#1 > 0); 134#L21-3 [2023-02-15 23:15:32,192 INFO L750 eck$LassoCheckResult]: Loop: 134#L21-3 assume !!(main_~x~0#1 > 0);main_~y~0#1 := 1 + main_~y~0#1;main_~res~0#1 := 1 + main_~res~0#1; 135#L21-2 assume !(main_~x~0#1 > 0 && main_~y~0#1 > 0); 134#L21-3 [2023-02-15 23:15:32,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 23:15:32,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1809066509, now seen corresponding path program 1 times [2023-02-15 23:15:32,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 23:15:32,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004476192] [2023-02-15 23:15:32,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 23:15:32,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 23:15:32,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 23:15:32,248 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 23:15:32,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 23:15:32,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004476192] [2023-02-15 23:15:32,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004476192] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 23:15:32,249 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 23:15:32,249 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-15 23:15:32,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227686154] [2023-02-15 23:15:32,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 23:15:32,251 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-02-15 23:15:32,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 23:15:32,251 INFO L85 PathProgramCache]: Analyzing trace with hash 1672, now seen corresponding path program 2 times [2023-02-15 23:15:32,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 23:15:32,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86866510] [2023-02-15 23:15:32,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 23:15:32,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 23:15:32,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 23:15:32,255 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 23:15:32,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 23:15:32,257 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 23:15:32,279 INFO L210 LassoAnalysis]: Preferences: [2023-02-15 23:15:32,279 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-15 23:15:32,279 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-15 23:15:32,279 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-15 23:15:32,279 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-15 23:15:32,279 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:15:32,279 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-15 23:15:32,280 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-15 23:15:32,280 INFO L133 ssoRankerPreferences]: Filename of dumped script: MinusUserDefined.c_Iteration3_Loop [2023-02-15 23:15:32,280 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-15 23:15:32,280 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-15 23:15:32,281 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 23:15:32,283 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 23:15:32,287 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 23:15:32,290 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 23:15:32,292 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 23:15:32,324 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-15 23:15:32,324 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-15 23:15:32,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:15:32,324 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:15:32,325 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-15 23:15:32,350 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 23:15:32,350 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 23:15:32,361 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2023-02-15 23:15:32,367 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-15 23:15:32,376 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=1} Honda state: {ULTIMATE.start_main_~x~0#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-15 23:15:32,382 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2023-02-15 23:15:32,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:15:32,382 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:15:32,383 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-15 23:15:32,401 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-02-15 23:15:32,402 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 23:15:32,402 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 23:15:32,422 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2023-02-15 23:15:32,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:15:32,423 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:15:32,424 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-15 23:15:32,426 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2023-02-15 23:15:32,427 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-15 23:15:32,427 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 23:15:32,491 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-15 23:15:32,494 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2023-02-15 23:15:32,495 INFO L210 LassoAnalysis]: Preferences: [2023-02-15 23:15:32,495 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-15 23:15:32,495 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-15 23:15:32,495 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-15 23:15:32,495 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-15 23:15:32,495 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:15:32,495 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-15 23:15:32,495 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-15 23:15:32,495 INFO L133 ssoRankerPreferences]: Filename of dumped script: MinusUserDefined.c_Iteration3_Loop [2023-02-15 23:15:32,495 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-15 23:15:32,495 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-15 23:15:32,496 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 23:15:32,499 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 23:15:32,503 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 23:15:32,505 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 23:15:32,507 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 23:15:32,543 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-15 23:15:32,544 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-15 23:15:32,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:15:32,544 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:15:32,545 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-15 23:15:32,547 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2023-02-15 23:15:32,549 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-15 23:15:32,554 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 23:15:32,554 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-15 23:15:32,555 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 23:15:32,555 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 23:15:32,555 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 23:15:32,555 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-15 23:15:32,555 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-15 23:15:32,570 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-15 23:15:32,574 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2023-02-15 23:15:32,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:15:32,574 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:15:32,575 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-15 23:15:32,576 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2023-02-15 23:15:32,579 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-15 23:15:32,585 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 23:15:32,585 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-15 23:15:32,585 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 23:15:32,585 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 23:15:32,585 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 23:15:32,586 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-15 23:15:32,586 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-15 23:15:32,589 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-15 23:15:32,591 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-15 23:15:32,591 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-15 23:15:32,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:15:32,592 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:15:32,593 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-15 23:15:32,593 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2023-02-15 23:15:32,596 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-15 23:15:32,596 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-15 23:15:32,596 INFO L513 LassoAnalysis]: Proved termination. [2023-02-15 23:15:32,596 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = -1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2023-02-15 23:15:32,601 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2023-02-15 23:15:32,602 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-15 23:15:32,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 23:15:32,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 23:15:32,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-15 23:15:32,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 23:15:32,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 23:15:32,628 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-15 23:15:32,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 23:15:32,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 23:15:32,639 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-02-15 23:15:32,639 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 24 transitions. cyclomatic complexity: 13 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 23:15:32,654 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 24 transitions. cyclomatic complexity: 13. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 44 states and 66 transitions. Complement of second has 7 states. [2023-02-15 23:15:32,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-02-15 23:15:32,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 23:15:32,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2023-02-15 23:15:32,655 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 7 letters. Loop has 2 letters. [2023-02-15 23:15:32,656 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 23:15:32,656 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 9 letters. Loop has 2 letters. [2023-02-15 23:15:32,656 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 23:15:32,656 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 7 letters. Loop has 4 letters. [2023-02-15 23:15:32,656 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 23:15:32,656 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 44 states and 66 transitions. [2023-02-15 23:15:32,657 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-15 23:15:32,658 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 44 states to 31 states and 46 transitions. [2023-02-15 23:15:32,658 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2023-02-15 23:15:32,658 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2023-02-15 23:15:32,658 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 46 transitions. [2023-02-15 23:15:32,658 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-15 23:15:32,658 INFO L218 hiAutomatonCegarLoop]: Abstraction has 31 states and 46 transitions. [2023-02-15 23:15:32,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 46 transitions. [2023-02-15 23:15:32,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 20. [2023-02-15 23:15:32,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 20 states have (on average 1.55) internal successors, (31), 19 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 23:15:32,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 31 transitions. [2023-02-15 23:15:32,660 INFO L240 hiAutomatonCegarLoop]: Abstraction has 20 states and 31 transitions. [2023-02-15 23:15:32,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 23:15:32,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-15 23:15:32,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-15 23:15:32,663 INFO L87 Difference]: Start difference. First operand 20 states and 31 transitions. Second operand has 5 states, 5 states have (on average 1.4) 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) [2023-02-15 23:15:32,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 23:15:32,684 INFO L93 Difference]: Finished difference Result 14 states and 19 transitions. [2023-02-15 23:15:32,684 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 19 transitions. [2023-02-15 23:15:32,685 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-15 23:15:32,685 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 0 states and 0 transitions. [2023-02-15 23:15:32,685 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-02-15 23:15:32,685 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-02-15 23:15:32,685 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-02-15 23:15:32,685 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-15 23:15:32,685 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-15 23:15:32,685 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-15 23:15:32,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-15 23:15:32,686 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-15 23:15:32,686 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-02-15 23:15:32,687 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-02-15 23:15:32,687 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-15 23:15:32,687 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-02-15 23:15:32,692 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 15.02 11:15:32 BoogieIcfgContainer [2023-02-15 23:15:32,692 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-02-15 23:15:32,693 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-15 23:15:32,693 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-15 23:15:32,693 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-15 23:15:32,693 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 11:15:30" (3/4) ... [2023-02-15 23:15:32,695 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-02-15 23:15:32,695 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-15 23:15:32,696 INFO L158 Benchmark]: Toolchain (without parser) took 2430.31ms. Allocated memory is still 174.1MB. Free memory was 126.7MB in the beginning and 54.7MB in the end (delta: 72.0MB). Peak memory consumption was 75.0MB. Max. memory is 16.1GB. [2023-02-15 23:15:32,696 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 138.4MB. Free memory was 81.9MB in the beginning and 81.8MB in the end (delta: 134.3kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 23:15:32,696 INFO L158 Benchmark]: CACSL2BoogieTranslator took 118.61ms. Allocated memory is still 174.1MB. Free memory was 126.5MB in the beginning and 117.5MB in the end (delta: 9.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-15 23:15:32,697 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.81ms. Allocated memory is still 174.1MB. Free memory was 116.9MB in the beginning and 115.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-15 23:15:32,697 INFO L158 Benchmark]: Boogie Preprocessor took 11.19ms. Allocated memory is still 174.1MB. Free memory was 115.4MB in the beginning and 114.8MB in the end (delta: 628.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 23:15:32,697 INFO L158 Benchmark]: RCFGBuilder took 165.58ms. Allocated memory is still 174.1MB. Free memory was 114.8MB in the beginning and 105.8MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-15 23:15:32,698 INFO L158 Benchmark]: BuchiAutomizer took 2109.78ms. Allocated memory is still 174.1MB. Free memory was 105.5MB in the beginning and 54.7MB in the end (delta: 50.8MB). Peak memory consumption was 54.0MB. Max. memory is 16.1GB. [2023-02-15 23:15:32,698 INFO L158 Benchmark]: Witness Printer took 2.53ms. Allocated memory is still 174.1MB. Free memory is still 54.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 23:15:32,699 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 138.4MB. Free memory was 81.9MB in the beginning and 81.8MB in the end (delta: 134.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 118.61ms. Allocated memory is still 174.1MB. Free memory was 126.5MB in the beginning and 117.5MB in the end (delta: 9.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 18.81ms. Allocated memory is still 174.1MB. Free memory was 116.9MB in the beginning and 115.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 11.19ms. Allocated memory is still 174.1MB. Free memory was 115.4MB in the beginning and 114.8MB in the end (delta: 628.6kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 165.58ms. Allocated memory is still 174.1MB. Free memory was 114.8MB in the beginning and 105.8MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 2109.78ms. Allocated memory is still 174.1MB. Free memory was 105.5MB in the beginning and 54.7MB in the end (delta: 50.8MB). Peak memory consumption was 54.0MB. Max. memory is 16.1GB. * Witness Printer took 2.53ms. Allocated memory is still 174.1MB. Free memory is still 54.7MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (1 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function x and consists of 4 locations. One deterministic module has affine ranking function -1 * y and consists of 4 locations. One deterministic module has affine ranking function -1 * y and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.0s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 1.7s. 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 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 12 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 24 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 21 mSDsluCounter, 25 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 43 IncrementalHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 20 mSDtfsCounter, 43 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax164 hnf100 lsp34 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq156 hnf93 smp100 dnf100 smp100 tf112 neg96 sie103 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 56ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-02-15 23:15:32,710 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2023-02-15 23:15:32,911 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2023-02-15 23:15:33,113 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-02-15 23:15:33,316 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE